Directory of Researchers

SHIBAHARA Makoto
Graduate School of Maritime Sciences / Department of Maritime Sciences
Associate Professor
Marine Engineering
Last Updated :2022/09/24

Researcher Profile and Settings

Affiliation

  • <Faculty / Graduate School / Others>

    Graduate School of Maritime Sciences / Department of Maritime Sciences
  • <Related Faculty / Graduate School / Others>

    Faculty of Oceanology / Department of Oceanology, Faculty of Maritime Sciences / Department of Marine Engineering

Teaching

Research Activities

Research Areas

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Thermal engineering
  • Aerospace, marine, and maritime Engineering / Marine and maritime engineering

Awards

  • Jan. 2018 Elsevier, Outstanding Reviewer Status (International Journal of Heat and Mass Transfer), Top 10th percentile of reviewers in terms of the number of reviews completed within two years for International Journal of Heat and Mass Transfer

    SHIBAHARA MAKOTO

    Official journal

  • Jan. 2018 Elsevier, Outstanding Reviewer Status (Applied Energy), Top 10th percentile of reviewers in terms of the number of reviews completed within two years for Applied Energy

    SHIBAHARA MAKOTO

    Official journal

  • Oct. 2017 Elsevier, Outstanding Reviewer Status (Applied Thermal Engineering), Top 10th percentile of reviewers in terms of the number of reviews completed within two years for Applied Thermal Engineering

    SHIBAHARA MAKOTO

    Official journal

Published Papers

  • Feng Xu, Qiusheng Liu, Makoto Shibahara

    Elsevier BV, Jun. 2021, International Journal of Heat and Mass Transfer, 171, 121117 - 121117

    [Refereed]

    Scientific journal

  • Experimental and Numerical Investigations of Subcooled Boiling Heat Transfer in a Small-Diameter Tube

    Makoto Shibahara, Qiusheng Liu, Koichi Hata, Katsuya Fukuda

    Dec. 2020, Journal Thermal Science and Engineering Applications, 12 (6), 061002-1 - 061002-6, English

    [Refereed]

    Scientific journal

  • Heat Transfer Characteristics of Latent Heat Thermal Energy Storage for Floating Concentrate Solar Power Systems

    Makoto Shibahara, Tatsuya Hinoki

    Dec. 2020, IOP Conference Series: Materials Science and Engineering (The 5th International Conference on Marine Technology), 1052, 012007 - 012007, English

    [Refereed]

    International conference proceedings

  • Experimental study on transient heat transfer for helium gas flowing in a minichannel

    Feng XU, Qiusheng LIU, Satoshi KAWAGUCHI, Makoto SHIBAHARA

    Aug. 2020, Proc. of the 2020 International Conference on Nuclear Engineering, ICONE2020-16697, 1-6., English

    [Refereed]

    International conference proceedings

  • M.Shibahara, Q.S. Liu, K.Hata, K. Fukuda

    2020, Experimental Heat Transfer, 33 (1), 64 - 80, English

    [Refereed]

    Scientific journal

  • Forced Convection Heat Transfer for Helium gas Flowing in a Narrow Channel

    Xu, F, Liu, Q.S, Kawaguchi, S, Shibahara, M

    Oct. 2019, Proc. of International Conference on Power Engineering-2019, 1247 - 1252, English

    [Refereed]

    International conference proceedings

  • Transient subcooled flow boiling phenomena in a vertical small tube

    Nakamura Yuji, Liu Qiusheng, Shibahara Makoto, Hata Koichi, Fukuda Katsuya

    American Society of Mechanical Engineers (ASME), Jul. 2019, ASME 2019 Summer Heat Transfer Conference, HT2019-3699, 1 - 6, English

    [Refereed]

    International conference proceedings

  • NUMERICAL AND EXPERIMENTAL INVESTIGATION OF BOILING HEAT TRANSFER FOR SUBCOOLED WATER FLOWING IN A SMALL-DIAMETER TUBE

    SHIBAHARA MAKOTO, LIU QIUSHENG, HATA KOICHI, FUKUDA KATSUYA

    The American Society of Mechanical Engineers, Jul. 2019, Proc. of The 6th ASME Micro/Nanoscale Heat & Mass Transfer International Conference, MNHMT2019-4163, 1 - 7, English

    [Refereed]

    International conference proceedings

  • NUMERICAL STUDY OF TRANSIENT HEAT TRANSFER FOR HELIUM GAS UNDER EXPONENTIALLY DECREASING FLOW CONDITIONS

    LIU Qiusheng, SHIBAHARA Makoto, FUKUDA Katsuya

    JSME(Japan Society of Mechnical Enginers), May 2019, Proceedings of ICONE-27, 27th International Conference on Nuclear Engineering, ICONE-27 (ICONE27-1668), 1 - 6, English

    [Refereed]

    International conference proceedings

  • Yuji NAKAMURA, Qiusheng LIU, Makoto SHIBAHARA, Koichi HATA, Katsuya FUKUDA

    The Japan Society of Mechanical Engineers, Feb. 2019, Mechanical Engineering Journal, 6 (1), 1 - 11, English

    [Refereed]

    Scientific journal

  • Transient Turbulent Heat Transfer in Vertical Small Tube

    Yuji Nakamura, Qiusheng LIU, Makoto SHIBAHARA, Koichi HATA, Katsuya FUKUDA

    The Japan Institute of Marine Engineering, Nov. 2018, Journal of the Japan Institute of Marine Engineering, 53 (6), 137 - 144, Japanese

    [Refereed]

    Scientific journal

  • Shibahara Makoto, Fukuda Katsuya, Qiusheng Liu

    Elsevier, Nov. 2018, Applied Thermal Engineering, 144 (5), 342 - 348, English

    [Refereed]

    Scientific journal

  • TRANSIENT BOILING HEAT TRANSFER CHARACTERISTICS FOR SUBCOOLED WATER FLOWING IN A VERTICAL TUBE

    SHIBAHARA Makoto, LIU Qiusheng, HATA Koichi, FUKUDA katsuya

    Nov. 2018, Proc. of The 29th International Symposium on Transport Phenomena, ISTP29-008, 1 - 5, English

    [Refereed]

    International conference proceedings

  • Steady and Transient Heat Transfer for Subcooled Water Flow Boiling in Tubes Connected with Marine Engineering

    Makoto Shibahara, Qiusheng Liu, Koichi Hata, Katsuya Fukuda

    Oct. 2018, Proceedings of 8th Pan Asian Association of Maritime Engineering Societies meeting and the Advanced Maritime Engineering Conference 2018, 305 - 307, English

    [Refereed]

    International conference proceedings

  • TRANSIENT CONVECTION HEAT TRANSFER FOR HELIUM GAS UNDER EXPERIMENTALLY DECREASING FLOW CONDITIONS

    Liu Qiusheng, Shibahara Makoto, Fukuda Katsuya

    Assembly for International Heat Transfer Conferences, Aug. 2018, The 16th International Heat Transfer Conference, (IHTC16-21556), pp.1 - 8, English

    [Refereed]

    International conference proceedings

  • TRANSIENT HEAT TRANSFER FOR HELIUM GAS AT VARIOUS FLOW DECAY TIME CONSTANTS AND HEAT GENERATION RATES

    Liu Qiusheng, Kitano Ayumi, Fukuda Katsuya, Shibahara Makoto

    American Society of Mechnical Engineering (ASME), JSME, and CNS, Jul. 2018, The 26th International Conference on Nuclear Engineering, (ICONE26-81391), pp.1 - 7, English

    [Refereed]

    International conference proceedings

  • M. Shibahara, K. Fukuda, Q. S. Liu, K. Hata, S. Masuzaki

    Various incipient boiling phenomena for subcooled water flowing in a uniformly heated narrow tube were observed experimentally. The boiling signal was analyzed using the wavelet decomposition method. The boiling incipience of subcooled water in the narrow tube was recorded by a sound level meter at various flow velocities. A platinum tube was used as the experimental tube with an inner diameter of 1.0 mm. The length of the experimental tube was 23.2 mm. The tube was heated by the Joule effect using a direct current. The inlet temperature and flow velocities ranged 285–346 K and 2.5–14 m/s, respectively. The surface superheat ascended with an increase of the heat flux until the incipient boiling point was reached. The initial temperature overshoot did not appear as the outlet pressure increased. Since the existing correlations underestimated the incipient heat flux, a semi-empirical correlation of the boiling incipience was obtained based on the experimental data. The predicted value of the new correlation is in agreement with the experimental data within ±30%.

    Elsevier Ltd, 05 Mar. 2018, Applied Thermal Engineering, 132 (5), 595 - 604, English

    [Refereed]

    Scientific journal

  • Shibahara Makoto, FUKUDA KATSUYA, Liu Qiusheng, Hata Koichi

    Springer, Feb. 2018, Heat and Mass Transfer, 54 (2), 501 - 508, English

    [Refereed]

    Scientific journal

  • M. Shibahara, K. Fukuda, Q. S. Liu, K. Hata

    Critical heat fluxes (CHFs) for subcooled flow boiling of water in a vertical tube due to steady and exponentially heat inputs were measured. The platinum tube with an inner diameter of 2.0 mm and a length of 94.8 mm was placed vertically in the experimental water loop. The upward flow velocity was approximately 2.5 m/s and the outlet subcooling ranged from 18 to 48 K. The heat generation rate was varied exponentially to investigate the effect of e-folding time on the CHFs. As an experimental result, the CHFs increased with a decrease in the e-folding time. When the e-folding times were longer, the CHFs were almost constant, whereas the CHFs increased for shorter e-folding times. The CHFs were independent on outlet subcoolings at low flow conditions. Moreover, it was considered that the explosive-like CHF occurred when the inner surface temperature of the tube exceeded the lower limit of heterogeneous spontaneous nucleation (HSN) temperature.

    SPRINGER, Sep. 2017, HEAT AND MASS TRANSFER, 53 (9), 2999 - 3012, English

    [Refereed]

    Scientific journal

  • M. Shibahara, K. Fukuda, Q. S. Liu, K. Hata

    Steady and transient heat transfer coefficients for water flowing in small tubes with exponentially increasing heat inputs were measured. Platinum tubes with inner diameters of 1.0 and 2.0 mm were used as test tubes, which were mounted vertically in the experimental water loop. In the experiment, the upward flow velocity ranged from 2 to 16 m/s, and the corresponding Reynolds numbers ranged from 4.77 x 10(3) to 9.16 x 10(4) at the inlet liquid temperatures ranged from 298 to 343 K. The heat generation rate exponentially increased with the function. The period of the heat generation rate ranged from 24 ms to 17.5 s. Experimental results indicate that steady heat transfer coefficients decreased with the increase in the inner diameter of the small tube. Moreover, the ratio of bulk viscosity to near-wall viscosity of water increased with the rise in surface temperature of the vertical tube. From the experimental data, correlations of steady-state heat transfer for inner diameters of 1.0 and 2.0 mm were obtained. The heat transfer coefficient increased with decreasing the period of the heat generation rate as the flow velocity decreased. Moreover, the Nusselt number under the transient condition was affected by the Fourier number and the Reynolds number.

    SPRINGER, Mar. 2017, HEAT AND MASS TRANSFER, 53 (3), 787 - 797, English

    [Refereed]

    Scientific journal

  • M. Shibahara, K. Fukuda, Q. S. Liu, K. Hata

    High critical heat fluxes (CHFs) for subcooled boiling of water in a small tube were investigated experimentally. A platinum tube with an inner diameter of 1.0 mm and a length of 40.9 mm was used in the experiment. The upward flow velocity, the subcooling of water, and the outlet pressure of the experimental tube were varied to enable a parametric study of the CHFs. The flow velocity ranged from 9 to 13 m/s and the inlet subcooling ranged from 69 to 148 K. The boiling number decreased with increasing Weber number. The boiling number is also dependent on a non-dimensional parameter and the density ratio of liquid to vapor. A correlation for the high CHF of the small tube was obtained based on the experimental data. Finally, the high CHF correlation was evaluated using the CHF data obtained by other researchers. (C) 2017 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Mar. 2017, INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 82, 74 - 80, English

    [Refereed]

    Scientific journal

  • Steady and transient critical heat flux for subcooled water in a mini channel

    Makoto Shibahara, Katsuya Fukuda, Qiusheng Liu, Koichi Hata

    Elsevier, Jan. 2017, International Journal of Heat and Mass Transfer, 104, 267 - 275, English

    [Refereed]

    Scientific journal

  • Qiusheng Liu, Li Wang, Akihiro Mitsuishi, Makoto Shibahara, Katsuya Fukuda

    Transient forced convection heat transfer due to exponentially increasing heat input to a heater is important as a database for the safety assessment of the transient heat transfer process in a very high temperature gas-cooled reactor (VHTR). Forced convection transient heat transfer for helium gas flowing over a cylinder in a narrow channel was experimentally studied at various periods of exponential increases in heat input. The test heater was mounted horizontally along the center part of a circular test channel with a diameter of 5 mm. The heat generation rates of the heater,, was increased with the exponential function, . By using a narrow channel, relatively high flow velocity was achieved, and experimental data at a high Reynolds number were obtained. According to the results, the surface temperature and the heat flux exponentially increased with time. It was clarified that the heat transfer coefficient approached the quasi-steady-state for a period of more than approximately 1 s, and it reached higher values for a period of less than approximately 1 s. The heat transfer coefficients present high dependence on the flow velocity of the helium gas and the heater diameter. Heat transfer correlations at the quasi-steady state and the transient state were obtained based on the experimental data.

    TAYLOR & FRANCIS INC, 2017, EXPERIMENTAL HEAT TRANSFER, 30 (4), 341 - 354, English

    [Refereed]

    Scientific journal

  • Qiusheng Liu, Li Wang, Makoto Shibahara, Katsuya Fukuda

    Knowledge of the heat transfer phenomenon during flow decay transient condition is important for the safety assessment of very high temperature reactor (VHTR) during the loss of coolant accident. In this study, transient heat transfer from a horizontal cylinder to helium gas under exponentially decreasing flow rate condition was experimentally studied. The experiment was performed by using a forced convection heat transfer test loop. A flow control value with its control system was used to realize the flow decay condition. Helium gas was used as coolant and platinum cylinder with 1 mm in diameter was used as the test heater. A uniform heat generation rate was added to the cylinder by a power source. The cylinder temperature was maintained at an initial value under a definite initial flow rate of the helium gas. Then, the mass flow rate of the helium gas starts to decrease exponentially with different time constants ranged from 4.3 s to 15.4 s. The initial flow velocity ranged from 10 m/s to 4 m/s. The surface temperature, heat flux, and heat transfer coefficient were measured during the flow decay transient process under wide experimental conditions such as initial flow rate, flow decay time constant. It was found that the temperature of the test heater shows rapid increase during this process, the increasing rate of the temperature is higher for a shorter time constant. The heat transfer coefficient versus time during the flow rate decreasing process was also obtained. The transient heat transfer process during exponentially decreasing flow rate condition was clarified based on the experimental data.

    American Society of Mechanical Engineers (ASME), 2017, International Conference on Nuclear Engineering, Proceedings, ICONE, 6 (Paper No. 66469), pp.1 - 6, English

    [Refereed]

    International conference proceedings

  • Makoto Shibahara, Katsuya Fukuda, Qiusheng Liu, Koichi Hata

    Critical heat flux (CHF) of convective boiling in a minitube due to power transient was measured. A platinum tube with an inner diameter of 1.0 mm was heated exponentially by a direct current power supply as Joule heating. The heated length of the platinum tube was 40.9 mm. The platinum tube was mounted vertically in the water-loop apparatus which consisted of a circulating pump, a pre-heater, a flow mater, a pressurizer, a cooler and a test section. The deionized water was pressurized by the pressurizer up to approximately 800 kPa to measure CHFs at the high subcooling. The upward flow velocity in the platinum tube was ranged from 5 to 11 m/s. The inlet subcooling was ranged from 92 to 117 K. The heat generation rate was controlled with exponential functions. The e-folding time of the heat generation rate was ranged from 30 ms to 18 s. As an experimental result, it was found that the CHFs increased with increasing the flow velocity and the inlet subcooling. The CHF also increased with decreasing the efolding time of the heat generation rate. Since the heat generation rate of the platinum tube increased rapidly under the power transient condition, it was considered that the heat flux of the platinum tube increased until the vapor blanket covered the heated surface of the platinum tube.

    American Society of Mechanical Engineers, 2017, ASME 2017 Heat Transfer Summer Conference, HT 2017, 2, 1 - 6, English

    [Refereed]

    International conference proceedings

  • M. Shibahara, K. Fukuda, Q. S. Liu, K. Hata

    Transient forced-convection heat transfer coefficients were measured for water flowing in a circular minichannel with exponentially increasing heat input. A stainless steel tube (SUS 304) with an inner diameter of 1.0 mm and a length of 47.4 mm, mounted vertically in the experimental water loop, was used as the experimental tube. In the experiment, the upward flow velocity ranged from 10 to 16 m/s and the inlet temperature ranged from 301 to 319 K. The heat generation rate increased exponentially. The e-folding time ranged from 39 ms to 15 s. The experimental results indicated that the turbulent heat transfer coefficients of the minichannel increased with decreasing e-folding time and increasing flow velocity. When the e-folding time was shorter than approximately 0.1 s, the heat transfer coefficients were significantly higher. Correlations of the steady and transient heat transfer for water flowing in a stainless steel tube were obtained from experimental data.

    BEGELL HOUSE INC, 2017, HEAT TRANSFER RESEARCH, 48 (13), 1179 - 1193, English

    [Refereed]

    Scientific journal

  • Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Transient and steady state natural convection heat transfer for D-mannitol on a horizontal cylinder was investigated experimentally at various liquid temperatures and heat input conditions. To clarify the natural convection phenomena of D-mannitol, transient and steady heat transfer coefficients were measured under various liquid temperatures of D-mannitol and periods of heat generation rates from a horizontal platinum cylinder. The platinum cylinder with a diameter of 1 mm and a length of 43.5 mm was used as the test heater in this experiment. Experimental results indicated that the steady heat transfer coefficient of D-mannitol was affected by the liquid temperature. As the liquid temperature increased, it was understood that the effect of liquid temperature weakened. When the period of the heat generation rate was changed, the heat transfer process was divided into natural convection heat transfer and conductive heat transfer. It was considered that the conductive heat transfer was more dominant as the period of the heat generation rate decreased. The empirical correlations of steady and transient heat transfer coefficients for D-mannitol were obtained. (C) 2016 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Dec. 2016, RENEWABLE ENERGY, 99, 971 - 977, English

    [Refereed]

    Scientific journal

  • Yantao Li, Katsuya Fukuda, Qiusheng Liu, Makoto Shibahara

    The heat transfer process of turbulent, single-phase forced convection of FC-72 through small diameter tubes with 1 and 1.8 mm inner diameters was experimentally investigated. The influence of Reynolds number (Red), Prandtl number (Pr), viscosity ratio (mu/mu(w)) and ratios of heated length to inner diameter (Lid) on turbulent heat transfer was studied in detail. The experimental data were also compared with the values calculated by classical correlations for conventional sized channels. The results indicated that the classical heat transfer correlations are not adequate for calculation of the heat transfer coefficient in small diameter tubes. The Nusselt numbers (Nu(d)) for 1 and 1.8 mm depend on Red in a different manner compared to classical correlations. The deviation from classical heat transfer correlations increased as the Red increase. The turbulent heat transfer correlation for FC-72 flow in tubes with diameters of 1 and 1.8 mm has been developed based on the experiment data. The differences between experimental and predicted Nud are within 15%. (C) 2016 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Dec. 2016, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 103, 428 - 434, English

    [Refereed]

    Scientific journal

  • LIU Qiusheng, ENDO Hirohiko, FUKUDA Katsuya, SHIBAHARA Makoto, ZHANG Peng

    Solution and diffusion process of carbon dioxide (CO2) in seawater is important in the research and development of CO2 ocean sequestration technology to mitigate global warming. In this study, solution and diffusion process of single CO2 bubble in seawater and pure water were experimentally studied under various pressures and temperatures to evaluate the transport process of CO2 in seawater. The solution process was conducted in a test vessel. CO2 bubble was generated by a CO2 bubble generator installed at the bottom of the vessel. The diameter of CO2 bubble was recorded using a high speed video camera. The pressure and temperature of liquids were measured by using a pressure transducer and thermocouples. Experimental conditions for the temperature ranged from 277 K to 297 K, and the pressure ranged from around 101 kPa up to 400 kPa. It was obtained that the complete solution time decreases with the increase in pressure due to its higher solubility at a higher pressure. It decreases with an increase in temperature arising from a higher diffusivity at a high temperature. It was clarified that the complete solution time for CO2 in seawater is longer than that in pure water due to its relatively lower solubility compared with pure water.

    The Japan Society of Mechanical Engineers, Oct. 2016, Mechanical Engineering Journal, 3 (5), 1 - 9, English

    [Refereed]

    Scientific journal

  • Convective Boiling Heat Transfer Characteristics for Pressurized Water in a Small Tube

    SHIBAHARA MAKOTO, Katsuya Fukuda, Qiusheng Liu, Koichi Hata

    Oct. 2016, Proceedings of 7th Pan Asian Association of Maritime Engineering Societies and Advanced Maritime Engineering Conference 2016, (AMEC2016-2B3-074), 1 - 6, English

    International conference proceedings

  • Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Melting process and heat transfer characteristics of d-mannitol were investigated experimentally and numerically to construct a fundamental database of the waste heat recovery systems for ships. d-Mannitol which has relatively high latent heat was selected in this study as a phase-change material for medium thermal energy storage. Experimental results indicate that the melting temperature and latent heat of d-mannitol were affected by the heating rate. The weight of d-mannitol did not decrease with the increase in temperature between 436 and 455 K. Moreover, numerical simulation was conducted using the commercial CFD code, ANSYS FLUENT. On the basis of the numerical simulation, melting process was affected by natural convection at the inner wall. As the heat flux of the cartridge heater input came from the inner wall, the liquid fraction increased from the inner wall to the outer wall through natural convection. The numerical result was compared with the experimental data. The temperature of the numerical simulation was approximately consistent with the experimental data. Moreover, the local heat transfer coefficients at the heater surface were calculated by the result of the numerical simulation. The heat transfer coefficients decreased during the phase change. It was considered that the heat transfer process changed from conductive heat transfer of solid state to natural convection heat transfer of liquid state as the liquid fraction increased with time.

    SPRINGER, Sep. 2016, HEAT AND MASS TRANSFER, 52 (9), 1993 - 2004, English

    [Refereed]

    Scientific journal

  • FLOW BOILING AND CRITICAL HEAT FLUX FOR SUBCOOLED WATER IN VERTICAL TUBE DUE TO EXPONENTIALLY INCREASING HEAT INPUTS

    SHIBAHARA MAKOTO, FUKUDA KATSUYA, LIU Qiusheng, Hata Koichi, Watanabe Sho, Nakamura Yuji, Muroga Takeo

    Sep. 2016, Proc. of The 27th International Symposium on Transport Phenomena (ISTP27), (101), 1 - 5, English

    [Refereed]

    International conference proceedings

  • TRANSIENT CONVECTIVE HEAT TRANSFER FOR HELIUM GAS AT VARIOUS FLOW DECAY TIMES

    LIU Qiusheng, Zhang Yu, Wang Li, Shibahara Makoto, Fukuda Katsuya

    Tsinghua University, Aug. 2016, 9th International Symposium on Heat Transfer (ISHT9), (Paper No. ISHT9-R0226), 1 - 6, English

    [Refereed]

    International conference proceedings

  • Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    The transient forced convection heat transfer of plate heater for nitrogen gas due to exponentially increasing heat input was investigated experimentally and numerically. The platinum ribbon with a thickness of 0.1 mm and a width of 4.0 mm was used as the test heater. The heat generation rate of the test heater was raised with exponential function. The inlet flow velocity was ranged from 2 to 4 m/s for the gas temperature of 313 K under the system pressure of 500 kPa. The period of heat generation rate was ranged from 45 ms to 8 s. Experimental results indicate that the surface temperature difference and heat flux increased exponentially as the heat generation rate increased through an exponential function. It was clarified that the heat transfer coefficient was divided into the two regions for the period ranging from 45 ms to 8 s. The numerical results were compared with experimental data. The numerical simulation was in agreement with the experimental data. (C) 2015 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Apr. 2016, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 95, 405 - 415, English

    [Refereed]

    Scientific journal

  • TRANSIENT FORCED CONVECTION HEAT TRANSFER FROM A HORIZONTAL CYLINDER TO HELIUM GAS IN A NARROW CHANNEL

    LIU Qiusheng, MITSUISHI Akihiro, WANG Li, SHIBAHARA Makoto, FUKUDA Katsuya

    The Japan Society of Mechanical Engineers, Mar. 2016, Proceedings of the First Pacific Rim Thermal Engineering Conference, PRTEC-14654, 1 - 5, English

    [Refereed]

    International conference proceedings

  • THERMAL-HYDRAULIC ANALYSIS FOR PRISMATIC VERY HIGH TEMPERATURE REACTOR

    Wang Li, LIU Qiusheng, Shibahara Makoto, Fukuda Katsuya

    The Japan Society of Mechanical Engineers, Mar. 2016, Proceedings of the First Pacific Rim Thermal Engineering Conference, PRTEC-14472, 1 - 4, English

    [Refereed]

    International conference proceedings

  • Experimental and Numerical Investigation of Melting Process in PCM Storage

    Makoto Shibahara

    Thermal energy storage (TES) technologies have been developed using Phase Change Materials (PCM) at various power plants to utilize waste heat sources. The melting process of PCM has been investigated experimentally and numerically to construct a fundamental database of TES systems. D-Mannitol was selected as a PCM for medium TES systems in this study. The experimental apparatus consisted of the cartridge heater, thermocouples, test tube, acryl tube, vacuum pump, pressure indicator, volt slider and shunt resistance. The temperatures near the cartridge heater were measured by K-type thermocouples. The heat inputs were ranged from 10W to 15W. As a result, temperature of D-mannitol increased with time linearly under the solid state until the fusion temperature. When D-mannitol changed from the solid phase to the liquid phase, temperatures remained constantly due to the latent heat. Moreover, the numerical simulation was conducted using the commercial CH) code, ANSYS FLUENT. As a result of the numerical simulation, it was understood that the melting process was affected by the natural convection at the inner wall. As the heat flux of the cartridge heater input from the inner wall, the liquid fraction increased from the inner wall to the outer wall. The numerical result was compared with the experimental data. It was understood that the temperature of numerical simulation was approximately consistent with that of the experiment during the phase change process.

    AMER SOC MECHANICAL ENGINEERS, 2016, PROCEEDINGS OF ASME 9TH INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, 2015, VOL 2, PowerEnergy2015-49350, 1 - 6, English

    [Refereed]

    International conference proceedings

  • TRANSIENT HEAT TRANSFER FOR HELIUM GAS FLOWING OVER A HORIZONTAL CYLINDER UNDER FLOW DECAY CONDITIONS

    Qiusheng Liu, Li Wang, Makoto Shibahara, Katsuya Fukuda

    The Very High Temperature Reactor (VHTR) is a new reactor that uses helium gas as primary coolant for conventional graphite matrix, coated fuels. It enables the achievements of high thermal efficiency and can supply heat with a high temperature of about 900-1000 degrees C. During the loss of coolant process, the fuel hot spot temperature should not get over a criteria value due to the temperature limitation of the fuel assembly. Traditionally, the VHTRs are designed to deal with loss of forced circulation conditions by using a passive mode decay heat removal system for the cavity cooling. However, even passive systems may experience some failure due to multiple undesired conditions even though the possibility is extremely low. Therefore, the VHTRs are now expected to be designed as naturally safe reactors with inherent safety features. Which means the decay heat removal is fully dependent on natural convection and radiation. To accomplish the tough task, a clear understanding of the heat transfer process during flow decay transient condition is quite necessary. This study was conducted to investigate the transient heat transfer process between the solid surface and coolant (helium gas) in VHTR under flow decay conditions. Forced convection transient heat transfer for a horizontal cylinder under flow decay transient condition was experimentally studied. The experiment was conducted by using the helium gas as coolant. A uniform heat generation rate was added to the heater. With a certain flow rate of the helium gas, the heater temperature was maintained at a designed value. Then, the flow rate of the helium gas starts to decrease according to designed linear functions with different decreasing speed. Platinum cylinder with 1 mm in diameter was used as the test heater. The heat transfer coefficient and surface temperature were measured during the flow decay transient process under wide experimental conditions such as initial flow rate, flow decay time. It was found that the temperature of the test heater increases in curve shape with different gradients during this process, with a shorter flow decay time the increasing rate of heater surface temperature would be higher. The heat transfer coefficient versus time during the flow rate decreasing process was also obtained.

    AMER SOC MECHANICAL ENGINEERS, 2016, PROCEEDINGS OF THE 24TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, 2016, VOL 3, (ICONE24-60783), 1 - 6, English

    [Refereed]

    International conference proceedings

  • Qiusheng Liu, Li Wang, Makoto Shibahara, Katsuya Fukuda

    The Very High Temperature Reactor (VHTR) is a new reactor that uses helium gas as primary coolant for conventional graphite matrix, coated fuels. It enables the achievements of high thermal efficiency and can supply heat with a high temperature of about 900-1000°C. During the loss of coolant process, the fuel hot spot temperature should not get over a criteria value due to the temperature limitation of the fuel assembly. Traditionally, the VHTRs are designed to deal with loss of forced circulation conditions by using a passive mode decay heat removal system for the cavity cooling. However, even passive systems may experience some failure due to multiple undesired conditions even though the possibility is extremely low. Therefore, the VHTRs are now expected to be designed as naturally safe reactors with inherent safety features. Which means the decay heat removal is fully dependent on natural convection and radiation. To accomplish the tough task, a clear understanding of the heat transfer process during flow decay transient condition is quite necessary. This study was conducted to investigate the transient heat transfer process between the solid surface and coolant (helium gas) in VHTR under flow decay conditions. Forced convection transient heat transfer for a horizontal cylinder under flow decay transient condition was experimentally studied. The experiment was conducted by using the helium gas as coolant. A uniform heat generation rate was added to the heater. With a certain flow rate of the helium gas, the heater temperature was maintained at a designed value. Then, the flow rate of the helium gas starts to decrease according to designed linear functions with different decreasing speed. Platinum cylinder with 1 mm in diameter was used as the test heater. The heat transfer coefficient and surface temperature were measured during the flow decay transient process under wide experimental conditions such as initial flow rate, flow decay time. It was found that the temperature of the test heater increases in curve shape with different gradients during this process, with a shorter flow decay time the increasing rate of heater surface temperature would be higher. The heat transfer coefficient versus time during the flow rate decreasing process was also obtained.

    American Society of Mechanical Engineers (ASME), 2016, International Conference on Nuclear Engineering, Proceedings, ICONE, 3 (Paper No. ISHT9-R0320), 1 - 6, English

    [Refereed]

    International conference proceedings

  • Makoto Shibahara, Katsuya Fukuda, Qiusheng Liu, Koichi Hata, Yuji Nakamura, Takeo Muroga, Masayuki Tokitani, Hiroyuki Noto

    Knowledge of transient critical heat flux (CHF) for subcooled boiling of water flow is important for the design of cooling devices such as fusion reactor divertor. Heating occurs rapidly in the divertor and the heat flux is estimated to reach 10 MW/m(2) because of plasma disruption. To cope with such a heat flux under the transient condition, the use of a small inner diameter tube (<3 mm diameter) is recommended, since the use of a smaller inner diameter tube results in a higher CHF. The transient CHF of subcooled boiling of water was measured for a 1.0 mm inner diameter tube, which was heated exponentially, with inlet subcoolings ranged from 82 to 145 K and a flow velocity of 10 m/s. The heat generation rate of the tube was exponentially increased according to the function Q(0)exp(t/tau). E-folding time, tau, ranged from 182 ms to 30.5 s. It was found that the transient CHF increased as the e-folding time decreased and that CHF of the small-diameter tube was higher than that of conventional channels. This indicated that CHF is affected by the e-folding time under transient conditions.

    JAPAN SOC MECHANICAL ENGINEERS, 2016, JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, 11 (3), 16 - 0037, English

    [Refereed]

    Scientific journal

  • Transient Heat Transfer for Helium Gas Flowing over a Horizontal Cylinder in a Narrow Channel

    LIU Qiusheng, MITSUISHI Akihiro, WANG Li, SHIBAHARA Makoto, FUKUDA Katsuya

    The Japan Society of Mechanical Engineers, Dec. 2015, Proceedings of the International Conference on Power Engineering-15, ICOPE-15 (Paper ID:1073), 1 - 7, English

    [Refereed]

    International conference proceedings

  • Thermal Characteristics of Phase Change Materials for Waste Heat Recovery System

    Shibahara Makoto, LIU Qiusheng, Katsuya Fukuda

    The Japan Institute of Marine Engineering, Nov. 2015, Journal of the JIME, 50 (6), 63 - 70, English

    [Refereed]

    Scientific journal

  • Transient Forced Convection Heat Transfer for Water Flowing in a Small Tube with Exponentially Increasing Heat Inputs

    Makoto Shibahara, Katsuya Fukuda, Qiusheng Liu, Koichi Hata, Yuji Nakamura, Takeo Muroga, Masayuki Tokitani, Hiroyuki Noto

    Sep. 2015, The 26th International Symposium on Transport Phenomena, (125), 1 - 6, English

    International conference proceedings

  • Melting Process of Phase Change Materials for Waste Heat Recovery Systems

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Sep. 2015, The 26th International Symposium on Transport Phenomena, (119), 1 - 5, English

    International conference proceedings

  • Makoto Shibahara

    Overall heat transfer coefficients of the heat exchanger inserted twisted plates for CO< inf> 2< /inf> were measured. The overall heat transfer coefficients increased with mass flow rates of water at the same Reynolds number in the experiment. It is considered that the helically twisting fluid motions in the twisted heat exchanger were contributed to the heat transfer enhancements.

    Global Digital Central, 2015, Frontiers in Heat and Mass Transfer, 6 (1), English

    [Refereed]

    Scientific journal

  • Thermal Storage System Using Phase Change Material for Ship

    Makoto Shibahara

    本研究では航行中における排熱を蓄熱し, 停泊時に利用する蓄熱槽の開発を目的に, 相変化蓄熱材に関する基礎的な伝熱実験を実施した. 本報では, 蓄熱材に潜熱が比較的高い酢酸ナトリウム三水和物および毒性が少なく耐腐食性に優れているD—マンニトールを選定した. 実験結果より, 酢酸ナトリウム三水和物では融解時に温度成層が広範囲で発生し, 冷却時には大きな過冷却が確認された. また, 熱分析(TG-DTA)を実施した結果, D-マンニトールの熱重量は沸点まで減少せず, 過冷却も酢酸ナトリウム三水和物に比べ小さいことから中高温蓄熱槽の蓄熱材に適していることが明らかとなった.

    Sep. 2014, Proceedings of the International Symposium on Marine Engineering 2014, 136, 1 - 5, English

    [Refereed]

    International conference proceedings

  • Enhancement of Forced Convection Heat Transfer Using Twisted Heater with Exponential Heat Inputs

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Forced convection transient heat transfer coefficients have been measured for nitrogen gas flowing over a twisted heater due to exponentially increasing heat inputs (Q(0)exp(t/tau)). And then, the effect of heater configuration on transient heat transfer by a twisted heater has been investigated comparing to that of the plate heater. In the experiment, the platinum ribbon with a thickness of 0.1 mm and a width of 4.0 mm was used as a test heater. For heat transfer enhancements in single-phase flow, it was twisted at the central part of the heater with an angle of 90 degrees with respect to the upper part of the heater. The heat generation rate was exponentially increased with a function of Qoexp(t/tau). The gas flow velocity ranged from 1 to 4 m/s for the gas temperatures of 313K. The periods of heat generation rate ranged from 46 ms to 17 s. The surface temperature difference and heat flux increased exponentially as the heat generation rate increased with the exponential function. The heat transfer coefficients for twisted heater have been compared to those of the plate heater. They were 24 % higher than those of the plate one. The geometric effect (twisted effect) of heater in this study showed an enhancement on the heat transfer coefficient. It was considered that the heat transfer coefficients are affected by the change in the flow due to swirling flow on the twisted heater. Finally, the empirical correlations for quasi-steady-state heat transfer and transient one have been obtained based on the experimental data.

    AMER SOC MECHANICAL ENGINEERS, 2014, PROCEEDINGS OF THE ASME SUMMER HEAT TRANSFER CONFERENCE - 2013, VOL 1, HT2013-17227, 1 - 6, English

    [Refereed]

    International conference proceedings

  • Heat Transfer Performance of Twisted Heat Exchanger for Carbon Dioxide Gas in a Dispersed Power Plant System Using Marine Biomass Resource

    Makoto Shibahara

    This paper is to propose a basic concept of marine renewable energy power plant system as a dispersed one, which is composed of a marine biomass plantation and a micro gas turbine. In this system, high-efficiency compact heat exchanger becomes necessary for the limit of the marine plant space. The author has already reported about a steady and transient heat transfer process for CO2 flowing over a horizontal plate under wide experimental conditions assuming a plate-type heat exchanger. For the heat transfer enhancement of the heat exchanger, the twisted plates were inserted in the tube and parallel plates. In the experiment, the overall heat transfer coefficients of the heat exchanger for carbon dioxide gas (CO2) are measured to construct a fundamental database for the proposed marine renewable energy system. Moreover, the three-dimensional analysis of the twisted heat exchanger has been conducted using the commercial CFD code, CFD2000. The twisted plate with a thickness of 0.3 mm is inserted in a tube which inner diameter is 7 mm. The gas flow velocities are ranged from 2.5 to 7.18 m/s for the inlet gas temperature of 323K. In the experiment, the overall heat transfer coefficient increases as the gas flow velocity increases. In the numerical simulation, the fluid structure in the tube has been changed caused by the twisted plate. The flow velocity near the twisted plate increases due to the blockage of the flow-pass. The temperature distribution was affected by the helically twisting fluid motion.

    AMER SOC MECHANICAL ENGINEERS, 2014, PROCEEDINGS OF THE ASME 8TH INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, 2014, VOL 2, ES-FuelCell2014-6703, 1 - 7, English

    [Refereed]

    International conference proceedings

  • 加熱平板の強制対流過渡熱伝達に関する研究

    柴原 誠, Qiusheng LIU, Katsuya FUKUDA

    神戸市立工業高等専門学校, Mar. 2013, 神戸市立工業高等専門学校研究紀要, 51 (51), 25 - 29, Japanese

    Research institution

  • Makoto Shibahara, Takashi Takata, Akira Yamaguchi

    The three-dimensional analysis of thermal stratification in the upper plenum of MONJU is conducted using the commercial CFD code, FLUENT ver.12.1. Since the temperature gradient near the thermal stratification interface would cause thermal stress in the reactor components, it is important to understand the characteristics of thermal stratification for evaluating the structural integrity in the upper plenum. As the result of numerical analysis, it is understood that the interface of thermal stratification is influenced by the flow pattern in the upper plenum. After the jet from the core outlet impinges on the upper core structure, the hot fluid flows obliquely upward to the inner barrel under the 40% electric output and flow condition. On the other hand, the jet from the core outlet flows to the lower part of the upper plenum, and then cold fluid flows through the flow holes after the turbine trip. Hence, the flow structure has changed from the initial condition as the flow rate and temperature of the core outlet decrease due to the turbine trip. It is considered that the flow path of the flow holes has been maintained for a long duration since the thermal stratification changes the distribution of buoyancy forces. © 2013 Elsevier B.V.

    ELSEVIER, 2013, Nuclear Engineering and Design, 258, 226 - 234, English

    [Refereed]

    Scientific journal

  • Numerical Analysis of Thermal Stratification in The Reactor Upper Plenum of MONJU with 1/3 Sector and Full Sector Models

    Makoto Shibahara, Takashi Takata, Akira Yamaguchi

    Sep. 2011, Proceedings of The 14th International Topical Meeting on Nuclear Reactor Thermal hydraulics, NURETH14-578, 1 - 11, English

    [Refereed]

    International conference proceedings

  • Numerical Simulation of Dynamic Flow Structure and Thermal Stratification Phenomena in LMFBR

    Makoto Shibahara, Takashi Takata, Akira Yamaguchi

    May 2011, Proceedings of 19th International Conference on Nuclear Engineering, ICONE19-43534, 1 - 7, English

    [Refereed]

    International conference proceedings

  • Transient Heat Transfer from a Horizontal Plate in Forced Flow of Various Gases

    Qiusheng Liu, Makoto Shibahara, Katsuya Fukuda

    Mar. 2011, Proceedings of ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC2011-44067, 1 - 10, English

    [Refereed]

    International conference proceedings

  • SHIBAHARA MAKOTO, LIU Qiusheng, FUKUDA KATSUYA

    Forced convection transient heat transfer coefficients due to exponentially increasing heat input were measured for helium gas and carbon dioxide gas flowing over a partially twisted heater. A partially twisted platinum plate with a thickness of 0.1 mm was heated by electric current and used as the test heater. The gas flow velocities ranged from 1 to 10 m/s, the gas temperatures ranged from 313 K to 353 K, and the periods of heat generation rate ranged from 46 ms to 17 s. The study showed a strong enhancement in the heat transfer coefficient for the twisted heater over that of a plate heater. Compared with those of a plate heater, the heat transfer coefficients of helium gas and carbon dioxide gas were enhanced 13 % and 28 %, respectively. Correlations for quasi-steady state heat transfer of the twisted heater in helium gas and carbon dioxide gas were obtained based on the experimental data.

    日本マリンエンジニアリング学会, Nov. 2010, 日本マリンエンジニアリング学会誌, 45 (Special Issue), 97 - 102, English

    [Refereed]

    Scientific journal

  • Numerical Study of Three Dimensional Thermal Hydraulics Effect on Thermal Stratification Phenomena in Upper Plenum of MONJU

    Takuji Sakamoto, Makoto Shibahara, Takashi Takata, Akira Yamaguchi

    Oct. 2010, Prpceedings of 7th Korea-Japan Symposium on Nuclear Thermal Hydraulics and Safety, N7P0032, 1 - 7, English

    International conference proceedings

  • Effect of Heater Configurations on Transient Heat Transfer for Various Gases Flowing over Twisted Heater

    SHIBAHARA MAKOTO, LIU Qiusheng, FUKUDA KATSUYA

    日本機械学会, Jun. 2010, Journal of Power and Energy Systems, 4 (1), 262 - 273, English

    [Refereed]

    Scientific journal

  • Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Forced convection transient heat transfer coefficients were measured for various gases (helium, nitrogen, argon and carbon dioxide gas) flowing over a twisted heater due to exponentially increasing heat input (Q0exp(t/ τ)). The platinum ribbon with a thickness of 0.1 mm and a width of 4.0 mm was used as the test heater. It was twisted at the center of the heater with an angle of 45 and 90 degrees with respect to the upperpart of the heater. The heat generation rate was exponentially increased with a function of Q 0exp(t/τ). The gas flow velocities ranged from 1 to 10 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate ranged from 45 ms to 17 s. The surface temperature difference and heat flux increase exponentially as the heat generation rate increases with exponential function. The heat transfer coefficients for twisted heater were compared with those of a plate heater. They are 13 ∼ 28 % higher than those of the plate one. The geometric effect (twisted effect) of heater in this study shows an enhancement on the heat transfer coefficient. This is because the heat transfer coefficients are affected by the change in the flow due to swirling flow on the twisted heater. And also, it was understood that heat transfer coefficient increase with the angle of twisted heater due to swirl motion and raised turbulence intensity. Empirical correlations for quasi-steady-state heat transfer and transient one were obtained based on the experimental data. © 2010 by ASME.

    2010, 2010 14th International Heat Transfer Conference, IHTC 14, 2, 721 - 729, English

    International conference proceedings

  • Transient Forced Convection Heat Transfer of Helium Gas at Various Pressures and Temperatures

    Qiusheng Liu, Makoto Shibahara, Katsuya Fukuda

    Oct. 2009, Proceedings of 13th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, N13P1132, 1 - 13, English

    [Refereed]

    International conference proceedings

  • Enhanced Transient Heat Transfer Caused by Partially Twisted Heater in Various Gases

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Oct. 2009, Proceedings of 8th International Symposium on Marine Engineering, 54, 1 - 6, English

    [Refereed]

    International conference proceedings

  • Transient Forced Convection Heat Transfer Due to Exponentially Increasing Heat Input for Helium Gas Flowing on Narrow Plate

    SHIBAHARA MAKOTO, LIU Qiusheng, FUKUDA KATSUYA

    日本機械学会, Apr. 2009, Journal of Power and Energy Systems, 3 (1), 272 - 288, English

    [Refereed]

    Scientific journal

  • EFFECT OF HEATER CONFIGURATIONS ON TRANSIENT HEAT TRANSFER FOR VARIOUS GASES FLOWING OVER A TWISTED HEATER

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Forced convection transient heat transfer coefficients were measured for helium gas and carbon dioxide gas flowing over a twisted heater due to exponentially increasing heat input (Q(0)exp(t/tau)). The twisted platinum plate with a thickness of 0.1 mm was used as test heater and heated by electric current. The heat generation rate was exponentially increased with a function of Q(0)exp(t/tau). The gas flow velocities ranged from 1 to 10 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate ranged from 46 ms to 17 s. The surface temperature difference and heat flux increase exponentially as the heat generation rate increases with the exponential function. Transient heat transfer coefficients increase with increasing gas flow velocity. The geometric effect of twisted heater in this study shows an enhancement on the heat transfer coefficient. Empirical correlation for quasi-steady-state heat transfer was obtained based on the experimental data. The data for heat transfer coefficient were compared with those reported in authors' previous paper.

    AMER SOC MECHANICAL ENGINEERS, 2009, ICONE17, VOL 4, 417 - 424, English

    [Refereed]

    International conference proceedings

  • TRANSIENT HEAT TRANSFER FOR CARBON DIOXIDE FLOWING OVER A HORIZONTAL PLATE WITH EXPONENTIALLY INCREASING HEAT INPUT

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Transient heat transfer coefficients for carbon-dioxide gas flowing over a horizontal plate (ribbon) at various periods of exponentially increasing heat input was experimentally and theoretically studied. In the experimental studies, transient heat transfer coefficients were measured under various velocities and periods. The platinum plate with a thickness of 0.1 mm was used as test heater and heated by electric current. The heat generation rate was exponentially increased with a function of Q(0)exp(t/tau). The gas flow velocities ranged from I to 3 m/s, the gas temperatures ranged front 313 K to 353 K, and the periods of heat generation rate ranged from 46 ms to 17 s. The surface temperature and heat flux increase exponentially as the heat generation rate increases with the exponential function. It was clarified that the heat transfer coefficient approaches the quasi-steady-state one for the period longer than about I s, and it becomes higher for the period shorter than around I s. In the theoretical study, forced convection transient heat transfer was numerically solved based on a conventional turbulent flow model. The temperature within the boundary layer around the heater increases with the increase of the surface temperature. It is understood that the gradient of the temperature distribution near the wall of the plate is higher at a higher Surface temperature difference. The values of numerical Solutions for the heat fluxes agree well with the experimental data, though the numerical solutions for surface temperatures show some differences with the experimental data.

    AMER SOC MECHANICAL ENGINEERS, 2009, IMECE 2008: HEAT TRANSFER, FLUID FLOWS, AND THERMAL SYSTEMS, VOL 10, PTS A-C, 921 - 928, English

    [Refereed]

    International conference proceedings

  • Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Forced convection transient heat transfer coefficients were measured for helium gas and carbon dioxide gas flowing over a twisted heater due to exponentially increasing heat input (Q0exp(t/τ)). The twisted platinum plate with a thickness of 0.1 mm was used as test heater and heated by electric current. The heat generation rate was exponentially increased with a function of Q0exp(t/τ). The gas flow velocities ranged from 1 to 10 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate ranged from 46 ms to 17 s. The surface temperature difference and heat flux increase exponentially as the heat generation rate increases with the exponential function. Transient heat transfer coefficients increase with increasing gas flow velocity. The geometric effect of twisted heater in this study shows an enhancement on the heat transfer coefficient. Empirical correlation for quasisteady-state heat transfer was obtained based on the experimental data. The data for heat transfer coefficient were compared with those reported in authors' previous paper. Copyright © 2009 by ASME.

    2009, International Conference on Nuclear Engineering, Proceedings, ICONE, 4, 417 - 424, English

    [Refereed]

    International conference proceedings

  • Transient Forced Convection Heat Transfer for Carbon Dioxide Flowing over a Horizontal Plate with Exponentially Increasing Heat Input

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Nov. 2008, Proceedings of 2008 ASME International Mechanical Engineering Congress and Exposition, IMECE2008-68603, 1 - 8, English

    [Refereed]

    International conference proceedings

  • ヘリウムガス非定常強制対流熱伝達の実験的研究及び数値解析

    LIU Qiusheng, FUKUDA KATSUYA, SHIBAHARA MAKOTO

    日本伝熱学会, Oct. 2008, 日本伝熱学会論文集, 16 (4), 157 - 162, Japanese

    [Refereed]

    Scientific journal

  • Transient Forced Convection Heat Transfer for Carbon Dioxide Flowing over a Horizontal Plate

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Oct. 2008, Proceedings of 7th JSME-KSME Thermal and Fluids Engineering Conference, D324, 1 - 4, English

    [Refereed]

    International conference proceedings

  • Heat Transfer Performance of Plate Heater for Carbon Dioxide Gas in a Dispersed Power Plant System Using Marine Biomass Resource

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Oct. 2008, Proceedings of 3rd Pan Asian Association of Maritime Engineering Societies and Advanced Maritime Engineering Conference, 863 - 869, English

    [Refereed]

    International conference proceedings

  • Transient Heat Transfer from Single Horizontal Heaters in Forced Flow of Helium Gas at Exponentially Increasing Heat Inputs

    Qiusheng Liu, Makoto Shibahara, Katsuya Fukuda

    Aug. 2008, Proceedings of ASME 2008 Summer Heat Transfer Conference, HT2008-56274, 1 - 11, English

    [Refereed]

    International conference proceedings

  • Transient Heat Transfer for Forced Convection Flow of Helium Gas over Horizontal Plate

    LIU Qiusheng, SHIBAHARA MAKOTO, FUKUDA KATSUYA

    Taylor&Francis Group, Jun. 2008, Experimental Heat Transfer, English

    [Refereed]

    Scientific journal

  • Transient Heat Transfer from Single Horizontal Heaters in Forced Flow of Helium Gas at Exponentially Increasing Heat Inputs

    Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    May 2008, Proceedings of 16thInternational Conference on Nuclear Engineering, ICONE16-48477, 1 - 7, English

    [Refereed]

    International conference proceedings

  • Makoto Shibahara, Qiusheng Liu, Katsuya Fukuda

    Steady and transient forced convection transient heat transfer due to exponentially increasing heat input to a heater is important as a database for safety assessment of the transient heat transfer process not only in a high temperature gas cooled reactor (HTGR) due to an accident in excess reactivity but also in high heat flux gas cooling devices such as a gas turbine and a rocket engine. In this research, forced convection transient heat transfer for helium gas at various periods of exponential increase of heat input (Qoexp(t/τ)) to a horizontal narrow plate was numerically solved based on a turbulent flow model. The platinum plate with a length of 50 mm was used as test heater. The velocities ranged from 4 to 10 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate, τ, ranged from 46 ms to 8.6 s. The values of numerical solutions for surface temperature and heat flux were compared and discussed with authors' experimental values. It was obtained that the surface temperature difference and heat flux increase exponentially as the heat generation rate increases with the exponential function. Then the temperature within the boundary layer also increases with the increase of the surface temperature. It is understood that the gradient of the temperature distribution near the wall of the plate is higher at a higher surface temperature difference. The values of numerical solutions for surface temperature and heat flux at the velocity of 6 m/s agree well with the experimental data, though they show some differences at other velocities. And also, heat transfer coefficients at the velocity of 6 m/s agree well with the experimental data, though they show some differences at other velocities. They agree wilhin 15 % at various periods and velocities. Copyright © 2008 by ASME.

    2008, International Conference on Nuclear Engineering, Proceedings, ICONE, 2, 831 - 837, English

    [Refereed]

    International conference proceedings

  • Numerical Solution of Transient Heat Transfer for Helium Gas Flowing over a Horizontal Heater with Exponentially Increasing Heat Input

    Qiusheng Liu, Makoto Shibahara, Katsuya Fukuda

    Oct. 2007, Proceedings of 1st Asian Symposium on Computational Heat Transfer and Fluid Flow, ASCHT2007-034, 1 - 7, English

    [Refereed]

    International conference proceedings

  • Qiusheng Liu, Makoto Shibahara, Katsuya Fukuda

    Transient heat transfer coefficients for helium gas flowing over a horizontal plate (ribbon) were measured under wide experimental conditions. The platinum plate with a thickness of 0.1 mm was used as test heater and heated by electric current. The heat generation rate was exponentially increased with a function of Q0exp(t/τ). The gas flow velocities ranged from 4 to 10 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate, τ, ranged from 50 ms to 17 s. The surface superheat and heat flux increase exponentially as the heat generation rate increases with the exponential function. It was clarified that the heat transfer coefficient approaches the quasi-steady-state one for the period τ longer than about 1 s, and it becomes higher for the period shorter than around 1 s. The dependence of transient heat transfer on the gas flowing velocity becomes weaker when the period becomes very shorter. The gas temperature in this study shows little influence on the heat transfer coefficient. An empirical correlation for quasi-steady-state heat transfer was obtained based on the experimental data.

    日本機械学会, Mar. 2007, Journal of Power and Energy Systems, 1 (1), 64 - 75, English

    [Refereed]

    Scientific journal

  • Transient heat transfer for parallel flow of helium gas over a horizontal plate

    Qiusheng Liu, Katsuya Fukuda, Makoto Shibahara, Shingo Kikumoto

    Forced. convection transient heat transfer for helium gas at various periods of exponentially increase of heat input to a honizontal plate (ribbon) was experimentally and theoretically studied. In the experimental studies, the authors measured heat flux, surface temperature, and transient heat transfer coefficients for forced convection flow of helium gas over a horizontal plate under wide experimental conditions. The gas flow velocities ranged from 4 to 10 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate, tau, ranged from 46 ms to 17 s. The pressures were from 400 to 800 kPa. It was clarified that the heat transfer coefficient approaches the quasi-steady-state one for the period longer than about 1 s, and it becomes higher for the period shorter than around 1 s. Empirical correlations for quasi-steady-state heat transfer and transient heat transfer were obtained based on the experimental data. In the theoretical study, transient heat transfer was numerically solved based on a turbulent flow model. It wash obtained that the surface superheat and heat flux increase exponentially as the heat generation rate increases with the exponential function. The values of numerical solutions for surface temperature and heat flux at the velocity of 6 m/s agree well with the experimental data, though they show some differences at other velocities.

    AMER SOC MECHANICAL ENGINEERS, 2007, PROCEEDINGS OF THE ASME/JSME THERMAL ENGINEERING SUMMER HEAT TRANSFER CONFERENCE 2007, VOL 1, HT2007-32205, 1031 - 1039, English

    [Refereed]

    International conference proceedings

  • Transient Heat Transfer for Helium Gas Flowing over a Horizontal Plate with Exponentially Increasing Heat Input

    Qiusheng Liu, Makoto Shibahara, Katsuya Fukuda

    Aug. 2006, Proceedings of 13th International Heat Transfer Conference,, 1083, 1 - 10, English

    [Refereed]

    International conference proceedings

  • Qiusheng Liu, Makoto Shibahara, Katsuya Fukuda

    Transient heat transfer coefficients for helium gas flowing over a horizontal plate (ribbon) were measured under wide experimental conditions. The platinum plate with a thickness of 0.1 mm was used as test heater and heated by electric current. The heat generation rate was exponentially increased with a function of Q0exp(t/τ). The gas flow velocities ranged from 4 to 10 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate, τ, ranged from 50 ms to 17 s. The surface superheat and heat flux increase exponentially as the heat generation rate increases with the exponential function. It was clarified that the heat transfer coefficient approaches the quasi-steady-state one for the period τ longer than about 1 s, and it becomes higher for the period shorter than around 1 s. The dependence of transient heat transfer on the gas flowing velocity becomes weaker when the period becomes very shorter. The gas temperature in this study shows little influence on the heat transfer coefficient. Empirical correlation for quasisteady-state heat transfer was obtained based on the experimental data. Copyright © 2006 by ASME.

    2006, International Conference on Nuclear Engineering, Proceedings, ICONE, 2006, 1 - 8, English

    [Refereed]

    International conference proceedings

  • Shibahara Makoto, Liu Qiusheng, Fukuda Katsuya

    Thermal characteristics of phase change materials (PCMs) were investigated experimentally to construct a fundamental database of thermal storage systems for waste heat recovery in this study. Sodium acetate trihydrate and D-mannitol which have relatively high latent heats were selected as PCMs. The heat inputs from a cartridge heater were varied from 5 to 15 W in the experiment. As a result, thermal stratification appeared in the vertical direction in the case of sodium acetate trihydrate. On the other hand, the temperature distribution of D-mannitol was not stratified because of the weaker natural convection than the case of sodium acetate trihydrate. Also, the solidification characteristics were investigated in this study. It was clarified that the degree of super cooling of D-mannitol was lower than that of sodium acetate trihydate. In addition, the thermal analyses of the chosen PCMs were conducted by thermogravimetric and differential thermal analysis (TG-DTA). Results of DTA show that the down peak of D-Mannitol was lower than that of sodium acetate trihydrate. Furthermore, the TG of D-Mannitol did not decrease at temperatures of 298.15 K to 458.15K.

    The Japan Institute of Marine Engineering, 2015, Journal of The Japan Institute of Marine Engineering, 50 (6), 768 - 775, English

  • SHIBAHARA Makoto, LIU Qiusheng, FUKUDA Katsuya

    Forced convection transient heat transfer for helium gas at various periods of exponential increase in heat input to a horizontal plate (ribbon) was experimentally and theoretically studied. In the experimental studies, the authors measured heat flux, surface temperature, and transient heat transfer coefficients for forced convection flow of helium gas over a horizontal plate. The gas flow velocities ranged from 4 to 10m/s, the gas temperatures ranged from 313 to 353K, and the periods of heat generation rate, τ, ranged from 46ms to 17s. Empirical correlations for quasi-steady-state heat transfer and transient heat transfer were obtained based on the experimental data. In the theoretical study, transient heat transfer was numerically solved based on a turbulent flow model. It was obtained that the surface superheat and heat flux increase exponentially as the heat generation rate increases with the exponential function.

    The Japan Society of Mechanical Engineers, 2007, The proceedings of the JSME annual meeting, 2007, 279 - 280, Japanese

  • SHIBAHARA Makoto, LIU Qiusheng, FUKUDA Katsuya

    Forced convection transient heat transfer for Carbon Dioxide at various periods of exponentially increasing heat input to a horizontal plate (ribbon) was experimentally studied. The authors measured heat flux, surface temperature, and transient heat transfer coefficients for forced convection flow of helium gas over a horizontal plate. The gas flow velocities ranged from 1 to 3 m/s, the gas temperatures ranged from 313 to 353 K, and the periods of heat generation rate, τ, ranged from 46 ms to 16 s. It was obtained that the heat transfer coefficient approaches the quasi-steady-state one for the period longer than about 1 s, and it becomes higher for the period shorter than around 1s. Empirical correlation for quasi-steady-state heat transfer was obtained based on the experimental data.

    The Japan Society of Mechanical Engineers, 2008, The proceedings of the JSME annual meeting, 2008, 13 - 14, Japanese

  • Transient forced convective heat transfer of helium gas in a narrow tube heated by exponential time-varying heat source

    F. Xu, Q.S. Liu, M. Shibahara

    2022, Experimental Heat Transfer, 35, 591 - 610, English

    [Refereed]

    Scientific journal

  • Feng Xu, Qiusheng Liu, Makoto Shibahara

    Apr. 2022, International Journal of Heat and Mass Transfer, 191, 1 - 10, English

    [Refereed]

    Scientific journal

  • Natural convection heat transfer from a vertical single cylinder with eccentric grid spacer in liquid sodium

    Koichi Hata, Makoto Shibahara

    Mar. 2022, Heat and Mass Transfer, 58, 1607 - 1636, English

    [Refereed]

    Scientific journal

MISC

  • 電力制御素子用強制水冷モジュールの伝熱特性

    SHIBAHARA MAKOTO, FUKUDA KATSUYA, LIU Qiusheng

    Mar. 2019, 日本マリンエンジニアリング学会誌, 54 (2), 29 - 33, Japanese

    Introduction scientific journal

  • 流動沸騰限界熱流束について

    SHIBAHARA MAKOTO, 福田 勝哉, LIU Qiusheng, 畑 幸一

    日本マリンエンジニアリング学会, Feb. 2018, 日本マリンエンジニアリング学会誌, 53 (2), 54 - 57, Japanese

    [Invited]

    Introduction scientific journal

  • 単相流の非定常熱伝達について

    Nakamura Yuji, 福田 勝哉, LIU Qiusheng, SHIBAHARA MAKOTO, 畑 幸一

    日本マリンエンジニアリング学会, Feb. 2018, 日本マリンエンジニアリング学会誌, 53 (2), 58 - 61, Japanese

    [Invited]

    Introduction scientific journal

  • 強制対流ガス冷却と伝熱促進について (特集 動力・エネルギー技術の現状と将来 : 基礎研究から先進技術まで)

    柴原 誠, Qiusheng LIU, Katsuya FUKUDA

    日本マリンエンジニアリング学会, Mar. 2013, 日本マリンエンジニアリング学会誌, 48 (2), 175 - 180, Japanese

    Introduction scientific journal

  • 水の過渡流動沸騰熱伝達に関する研究

    柴原 誠, 劉秋生, 増崎貴

    Sep. 2021, 日本マリンエンジニアリング学会誌, 56 (5), 810 - 815, Japanese

    [Invited]

    Introduction scientific journal

Presentations

  • 潜熱蓄熱材の自然対流熱伝達に関する研究

    松若真凜, 柴原誠, 劉秋生

    第91回マリンエンジニアリング学術講演会, 28 Sep. 2021, Japanese

    Oral presentation

  • Natural Convection Heat Transfer for Sugar Alcohols

    M. Shibahara, M. Matsuwaka, K. Yabuuchi

    The 12th International Symposium of Advanced Energy Science, 07 Sep. 2021, English

    Poster presentation

  • 水の過渡流動沸騰熱伝達に関する研究

    柴原 誠, 劉 秋生, 増崎 貴

    第90回日本マリンエンジニアリング学会学術講演会, 26 Oct. 2020, Japanese

    Oral presentation

  • 細管における水の対流熱伝達特性

    劉 秋生, 柴原 誠, 中村 雄史, 笹井 勇佑

    第90回マリンエンジニアリング学術講演会,, 26 Oct. 2020, Japanese

    Nominated symposium

  • Thermal control of phase change material using graphite powder

    Makoto Shibahara, Tatsuya Hinoki

    The 11th International Symposium of Advanced Energy Science, 15 Sep. 2020, English

    Poster presentation

  • 細管におけるヘリウムガスの乱流非定常熱伝達

    許 峰, 劉 秋生, 川口 哲, 柴原 誠

    日本機械学会関西支部第95期定時総会講演会, 11 Mar. 2020, Japanese

    Oral presentation

  • リボン発熱体を用いたプール核沸騰熱伝達における表面粗さの影響

    顧 源, 劉 秋生, 柴原 誠, 小川 宏樹

    日本機械学会関西支部第95期定時総会講演会, 11 Mar. 2020, Japanese

    Oral presentation

  • 垂直発熱体における水の強制対流熱伝達に関する研究

    古川義基, 劉秋生, 柴原誠, 畑幸一

    第89回マリンエンジニアリング学術講演会, Oct. 2019, Japanese, Domestic conference

    Oral presentation

  • 狭隘流路における円管発熱体の強制対流熱伝達

    川口哲,許峰, 劉秋生, 柴原誠

    第89回マリンエンジニアリング学術講演会, Oct. 2019, Japanese, Domestic conference

    Oral presentation

  • Thermal Properties of Sugar Alcohol Phase Change Material

    Shibahara, M, Hinoki, T

    10th International Symposium of Advanced Energy Science, Sep. 2019, English, International conference

    Oral presentation

  • Study on Forced Convection Heat Transfer for Water Flowing over a Vertical Cylinder

    FURUKAWA Yoshiki, LIU Qiusheng, SHIBAHARA Makoto, HATA Koichi

    94th Annual Meeting of Kansai Branch, JSME, Mar. 2019, Japanese, Kansai Branch, JSME, Ritsumeikan University, Domestic conference

    Poster presentation

  • Transient Heat Transfer for Helium Gas Under Exponential Flow Decay Conditions

    KAWAGUCHI Satoshi, LIU Qiusheng, SHIBAHARA Makoto

    94th Annual Meeting of Kansai Branch, JSME, Mar. 2019, Japanese, Ritsumeikan University, Domestic conference

    Poster presentation

  • ヘリウムガスの指数関数状流量減少における強制対流熱伝達

    Ayumi KITANO, Qiusheng LIU, Makoto SHIBAHARA

    第二回原子力関係科学技術の基礎的研究の動向調査委員会, Jan. 2019, Japanese, 関西原子力懇談会, 大阪科学技術センター, Domestic conference

    Oral presentation

  • 電力制御素子用強制水冷却モジュールの伝熱特性

    SHIBAHARA MAKOTO, 福田 勝哉, LIU Qiusheng

    第88回日本マリンエンジニリング学術講演会, Oct. 2018, Japanese, 岡山コンベンションセンター, Domestic conference

    [Invited]

    Nominated symposium

  • Steady and Transient Forced Convection Heat Transfer for Water Flowing in a Small Tube

    SASAI Yusuke, LIU Qiusheng, SHIBAHARA Makoto

    第88回日本マリンエンジニリング学術講演会, Oct. 2018, Japanese, 岡山コンベンションセンター, Domestic conference

    Oral presentation

  • Transient Heat Transfer for Helium Gas Under Exponentially Decreasing Flow Conditions

    KITANO Ayumi, LIU Qiusheng, SHIBAHARA Makoto

    第88回日本マリンエンジニリング学術講演会, Oct. 2018, Japanese, 岡山コンベンションセンター, Domestic conference

    Oral presentation

  • 垂直細管内における過渡限界熱流束

    Nakamura Yuji, Fukuda Katsuya, LIU Qiusheng, Shibahara Makoto, Hata Koichi

    日本機械学会関西支部第93期定時総会・講演会, Mar. 2018, Japanese, 摂南大学 寝屋川キャンパス, Domestic conference

    Oral presentation

  • 細管発熱体を用いた強制対流熱伝達に関する研究

    Sasai Yusuke, LIU Qiusheng, Shibahara Makoto, Fukuda Makoto

    日本機械学会関西支部 第93期定時総会・講演会, Mar. 2018, Japanese, 摂南大学 寝屋川キャンパス, Domestic conference

    Poster presentation

  • ヘリウムガスの流量減少に伴う過渡対流熱伝達に関する研究

    Kitano Ayumi, LIU Qiusheng, Shibahara Makoto, Fukuda Katsuya

    日本機械学会関西支部 第93期定時総会・講演会, Mar. 2018, Japanese, 摂南大学 寝屋川キャンパス, Domestic conference

    Poster presentation

  • Transient Heat Transfer in Vertical Small Tube at Slow Flow Velocities

    Nakamura Yuji, Liu Qiusheng, Fukuda Katsuya, Shibahara Makoto, Hata Koichi

    International Symposium on Marine Engineering (ISME 2017), Oct. 2017, English, Tokyo International Exchange Center, Tokyo, Japan, International conference

    Oral presentation

  • Flow Boiling and High Critical Heat Flux for Subcooled Water in a Mini Channel

    Makoto Shibahara, FUKUDA KATSUYA, Qiusheng Liu, Koichi Hata

    International Symposium on Marine Engineering(ISME2017), Oct. 2017, English, Tokyo, International conference

    Oral presentation

  • Convection Heat Transfer of Helium Gas under Flow Decay Conditions

    Liu Qiusheng, Shibahara Makoto, Fukuda Katsuya

    International Symposium on Marine Engineering (ISME 2017), Oct. 2017, English, Tokyo International Exchange Center, Tokyo, Japan, International conference

    Oral presentation

  • 垂直細管内の低流速領域における非定常熱伝達に関する研究

    NAKAMURA YUJI, FUKUDA KATSUYA, LIU Qiusheng, SHIBAHARA MAKOTO, HATA KOICHI

    第87回マリンエンジニアリング学術講演会, May 2017, Japanese, 東京海洋大学, Domestic conference

    Oral presentation

  • ヘリウムガスの対流熱伝達における流量急減の影響

    石破慎也, LIU Qiusheng, FUKUDA KATSUYA, SHIBAHARA MAKOTO

    第87回マリンエンジニアリング学術講演会, May 2017, Japanese, 東京海洋大学, Domestic conference

    Oral presentation

  • サブクール強制流動沸騰の限界熱流束に関する研究

    SHIBAHARA MAKOTO, FUKUDA KATSUYA, LIU Qiusheng, HATA KOICHI

    第87回マリンエンジニアリング学術講演会, May 2017, Japanese, 東京海洋大学, Domestic conference

    Oral presentation

  • 低流速領域の垂直短管内における過渡強制対流熱伝達

    Nakamura Yuji, Fukuda Katsuya, LIU Qiusheng, Shibahara Makoto, Hata Koichi

    第86回(平成28年)マリンエンジニアリング学術講演会, Oct. 2016, Japanese, 姫路商工会議所, Domestic conference

    Oral presentation

  • 水平円柱発熱体におけるヘリウムガスの流量急減に伴う対

    Zhang Yu, LIU Qiusheng, Fukuda Katsuya, Shibahara Makoto

    第86回(平成28年)マリンエンジニアリング学術講演会, Oct. 2016, Japanese, 日本マリンエンジニアリング学会, 姫路商工会議所, Domestic conference

    Oral presentation

  • 水の細管内上向流における定常及び過渡強制対流熱伝達

    Watanabe Sho, LIU Qiusheng, Fukuda Katsuya, Hata Koichi, Shibahara Makoto, Nakamura Yuji

    第86回(平成28年)マリンエンジニアリング学術講演会, Oct. 2016, Japanese, 日本マリンエンジニアリング学会, 姫路商工会議所, Domestic conference

    Oral presentation

  • 細管内サブクール流動沸騰に関する研究

    柴原 誠, 福田 勝哉, 劉 秋生, 畑 幸一

    第86回(平成28年)マリンエンジニアリング学術講演会, Oct. 2016, Japanese, 姫路商工会議所, Domestic conference

    Oral presentation

  • FC-72を用いた細管内過渡乱流熱伝達に関する研究

    Li Yantao, Fukuda Katsuya, LIU Qiusheng, Shibahara Makoto

    第86回(平成28年)マリンエンジニアリング学術講演会, Oct. 2016, Japanese, 姫路商工会議, Domestic conference

    Oral presentation

  • RF加温時における脂肪層徐熱のためのミニチャネル冷却に関する研究

    SHIBAHARA MAKOTO

    日本ハイパーサーミア学会第33回大会, Sep. 2016, English, つくば国際会議場, Domestic conference

    Poster presentation

  • 短い垂直円管内FC-72の過渡熱伝達

    LI YANTAO, FUKUDA KATSUYA, LIU QIUSHENG, SHIBAHARA MAKOTO

    日本機械学会関西支部第91期定時総会講演会, Mar. 2016, English, 大阪電気通信大学, Domestic conference

    Oral presentation

  • Transient Convective Heat Transfer for Helium Gas Flowing over a Horizontal Cylinder under Flow Decay Conditions

    LIU Qiusheng, ZHANG Yu, MITSUISHI AKIHIRO, FUKUDA Katsuya, SHIBAHARA Makoto

    91th Annual Meeting of Kansai Branch, JSME, Mar. 2016, Japanese, Osaka Electro-Communication University, Domestic conference

    Poster presentation

  • リボン発熱体における沸騰熱伝達及び限界熱流束に及ぼす予圧の影響

    Min Han Htet, Sakamoto Rie, FUKUDA KATSUYA, LIU QIUSHENG, SHIBAHARA MAKOTO

    日本機械学会関西支部第91期定時総会講演会, Mar. 2016, English, 大阪電気通信大学, Domestic conference

    Oral presentation

  • Transient Forced Convection Heat Transfer from a Horizontal Cylinder to Helium Gas in a Narrow Channel

    LIU Qiusheng, Akihiro Mitsuishi, Li Wang, SHIBAHARA MAKOTO, FUKUDA KATSUYA

    The Fisrt Pacific-Rim Thermal Engineering Conference, Mar. 2016, English, Waikoloa Beach Marriott Resort and Spa, Hawaii's Big Island, Hawaii, USA, International conference

    Oral presentation

  • Transient Critical Heat Flux for Subcooled Water Flowing Upward in Vertical Small Tube with Exponentially Increasing Heat Inputs

    SHIBAHARA MAKOTO, FUKUDA KATSUYA, Qiusheng Liu, Koichi Hata, Yuji Nakamura, Takeo Muroga, Masayuki Tokitani, Hiroyuki Noto

    The Fisrt Pacific-Rim Thermal Engineering Conference, Mar. 2016, English, Waikoloa Beach Marriott Resort and Spa, Hawaii's Big Island, Hawaii, USA, International conference

    Oral presentation

  • Thermal-Hydraulic Analysis for Prismatic Very High Temperature Reactor

    Li Wang, LIU Qiusheng, SHIBAHARA MAKOTO, FUKUDA KATSUYA

    The Fisrt Pacific-Rim Thermal Engineering Conference, Mar. 2016, English, Waikoloa Beach Marriott Resort and Spa, Hawaii's Big Island, Hawaii, USA, International conference

    Oral presentation

  • 低流速の非定常円管内流動非沸騰熱伝達に関する研究

    中村 雄史, FUKUDA KATSUYA, LIU Qiusheng, SHIBAHARA MAKOTO, HATA KOICHI

    第85回マリンエンジニアリング学術講演会, Oct. 2015, Japanese, 富山国際会議場, Domestic conference

    Oral presentation

  • 増加熱入力のある白金平板発熱体の水プール沸騰限界熱流束

    阪本 理恵, FUKUDA KATSUYA, LIU Qiusheng, SHIBAHARA MAKOTO

    第85回マリンエンジニアリング学術講演会, Oct. 2015, Japanese, 富山国際会議場, Domestic conference

    Oral presentation

  • 潜熱蓄熱材を用いた中低温排熱回収に関する研究

    SHIBAHARA MAKOTO, LIU Qiusheng, FUKUDA KATSUYA

    マリンエンジニアリング学術講演会, Oct. 2015, Japanese, 富山国際会議場, Domestic conference

    Oral presentation

  • 水中に置かれたリボン発熱体からの過渡熱伝達及び限界熱流束について

    ミン ハン テツ, FUKUDA KATSUYA, LIU Qiusheng, SHIBAHARA MAKOTO

    第85回マリンエンジニアリング学術講演会, Oct. 2015, English, 富山国際会議場, Domestic conference

    Oral presentation

  • 海水における二酸化炭素単一気泡の溶解・拡散過程に関する基礎的研究

    ENDO Hirohiko, LIU Qiusheng, FUKUDA Katsuya, SHIBAHARA Makoto

    第85回マリンエンジニアリング学術講演会, Oct. 2015, Japanese, 富山国際会議場, Domestic conference

    Oral presentation

  • 細管流路におけるヘリウムガスの強制対流熱伝達に関する研究

    尾上 寿広, 劉 秋生, 柴原 誠

    第91回マリンエンジニアリング学術講演会, 28 Sep. 2021

  • 垂直リボン発熱体を用いた水の強制対流熱伝達

    松井 勇樹, 劉 秋生, 柴原 誠

    第91回マリンエンジニアリング学術講演会, 28 Sep. 2021

  • 細管におけるヘリウムガスの強制対流熱伝達の数値解析

    本庄 優志, 劉 秋生, 柴原 誠

    第91回マリンエンジニアリング学術講演会, 28 Sep. 2021

    Oral presentation

  • P022 Transient Convective Heat Transfer for Helium Gas Flowing over a Horizontal Cylinder under Flow Decay Conditions

    劉 秋生, 張 宇, 三石 朗大, 王 麗, 福田 勝哉, 柴原 誠

    関西支部講演会講演論文集, 11 Mar. 2016, Japanese, The Japan Society of Mechanical Engineers

  • 602 Effect of Pre-pressurization on Boiling Heat Transfer and Critical Heat Flux on Horizontal Vertically-Oriented Ribbon

    Min Han Htet, SAKAMOTO Rie, FUKUDA Katsuya, LIU Qinsheng, SHIBAHARA Makoto

    関西支部講演会講演論文集, 11 Mar. 2016, English, The Japan Society of Mechanical Engineers, This study aims to examine the boiling heat transfer and CHF caused by exponentially increasing heat inputs, Q = Q_0 exp(t/τ), to a horizontal vertically-oriented platinum ribbon in a pool of water at atmospheric and saturated condition on the effect of pre- pressurization. Q_0, t and τ are initial heat generation rate, time and period, respectively. The two conditions of pre-pressure such as without and with pre-pressure up to 4.4 MPa are carried out before each experimental run. The exponential period was varied from 10 ms to 20 s. The boiling initiation and CHF occur due to heterogeneous spontaneous nucleation (HSN) by pre-pressurization. The HSN depends on surface condition. In this study, the platinum ribbon has the conditions of the surface roughness, Ra of 0.22 ± 0.02 μm and contact angle, θ, of 51.5 ± 0.7°, respectively. The measured results such as heat transfer process, boiling initiation and CHF were analyzed and compared with previous correlation on the relationship of surface condition.

  • 1208 Transient Forced Convection Heat Transfer for Various Gases

    Shibahara Makoto, Liu Qiusheng, Fukuda Katsuya

    関西支部講演会講演論文集, 16 Mar. 2013, Japanese, The Japan Society of Mechanical Engineers

  • 1308 Transient Forced Convection Heat Transfer for Helium Gas Flowing over a Plate Heater at Various Heat Generation rates

    SHIBAHARA Makoto, Liu Qiusheng, Fukuda Katsuya

    講演論文集, 25 Feb. 2013, Japanese, The Japan Society of Mechanical Engineers

  • 強制対流ガス冷却と伝熱促進について

    Shibahara Makoto, LIU Qiusheng, Fukuda Katsuya

    日本マリンエンジニアリング学会誌, Feb. 2013, Japanese

  • 1217 Forced Convection Heat Transfer from a Twisted Heater

    SHIBAHARA Makoto, LIU Qiusheng, FUKUDA Katsuya

    関西支部講演会講演論文集, 16 Mar. 2010, Japanese, The Japan Society of Mechanical Engineers

  • 1212 Experimental Sudy on Transient Forced Convection Heat Transfer for Twisted Heater Due to Exponentially Increasing Heat Input

    SHIBAHARA Makoto, LIU Qiusheng, FUKUDA Katsuya

    関西支部講演会講演論文集, 16 Mar. 2009, Japanese, The Japan Society of Mechanical Engineers

  • 822 Numerical Analysis of Forced Convection Heat Transfer for Helium Gas Due to Transient Heat Input

    Shibahara Makoto, Liu Qiusheng, Fukuda Katsuya

    関西支部講演会講演論文集, 14 Mar. 2008, Japanese, The Japan Society of Mechanical Engineers

  • F213 Transient Heat Transfer for Helium Gas Flowing over a Horizontal Plate with Exponentially Increasing Heat Input

    Liu Q.S., Fukuda K., Shibahara M., Kikumoto S.

    Procee[d]ings of Thermal Engineering Conference, 23 Nov. 2007, English, The Japan Society of Mechanical Engineers, Forced convection transient heat transfer for helium gas at various periods of exponential increase of heat input to a horizontal plate (ribbon) was theoretically studied. In the theoretical study, transient heat transfer was numerically solved based on a turbulent flow model. The values of numerical solution for surface temperature and heat flux were compared and discussed with authors' previous experimental data. It was clarified that the values of numerical solutions for surface temperature and heat flux at the velocity of 6m/s agree well with the experimental data, though they show some differences at other velocities.

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