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NAKANOU Akihiro
Graduate School of Maritime Sciences / Department of Maritime Sciences
Professor

Researcher basic information

■ Research Keyword
  • 低温工学 熱工学 航空宇宙工学 微小重力 極低温物理
■ Research Areas
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Thermal engineering

Research activity information

■ Paper
  • Tomoki Hara, Kenji Oyamada, Shiho Asano, Ryo Fujii, Hirofumi Sato, Yoshiaki Kishikawa, Kazuhiro Hatayama, Hiroaki Kobayashi, Yuki Sakamoto, Tadahiro Shibutani, Yasushi Oka, Yoshiki Sakurai, Ritsu Dobashi, Kazunori Kuwana, Akihiro Nakano
    Last, Karlsruhe Institute of Technology Library, Jul. 2026, Hydrogen Safety, 3(1) (1), 252 - 259
    [Refereed]
    Scientific journal

  • Hiroshi Ito, Akihiro Nakano
    Aug. 2023, ECS Meeting Abstracts
    Scientific journal

  • A. Nakano, T. Shimazaki, M. Sekiya, H. Shiozawa, K. Ohtsuka, A. Aoyagi, T. Iwakiri, Z. Mikami, M. Sato, Y. Sugino, K. Kinoshita, T. Matsuoka, T. Imamura, Y. Takayama, K. Yamamoto
    Apr. 2021, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 46(29) (29), 15649 - 15659, English
    Scientific journal

  • Hiroshi Ito, Natsuki Kawaguchi, Satoshi Someya, Tetsuo Munakata, Naoki Miyazaki, Masayoshi Ishida, Akihiro Nakano
    Elsevier {BV}, Sep. 2018, International Journal of Hydrogen Energy, 43(36) (36), 17030 - 17039
    Scientific journal

  • Nakano, A., Shimazaki, T., Sekiya, M., Shiozawa, H., Aoyagi, A., Ohtsuka, K., Iwakiri, T., Mikami, Z., Sato, M., Kinoshita, K., Matsuoka, T., Takayama, Y., Yamamoto, K.
    Apr. 2018, Cryogenics, 91, 112 - 117
    Scientific journal

  • Ito, H., Miyazaki, N., Sugiyama, S., Ishida, M., Nakamura, Y., Iwasaki, S., Hasegawa, Y., Nakano, A.
    Mar. 2018, Journal of Applied Electrochemistry, 48(3) (3), 305 - 316
    Scientific journal

  • Bhogilla, S.S., Ito, H., Segawa, T., Kato, A., Nakano, A.
    May 2017, International Journal of Hydrogen Energy, 42(19) (19), 13827 - 13838, English
    Scientific journal

  • Ito, H., Heo, Y., Ishida, M., Nakano, A., Someya, S., Munakata, T.
    Feb. 2017, Journal of Power Sources, 342, 393 - 404, English
    Scientific journal

  • Ito, H., Miyazaki, N., Ishida, M., Nakano, A.
    Dec. 2016, International Journal of Hydrogen Energy, 41(45) (45), 20439 - 20446, English
    Scientific journal

  • Hiroshi ITO, Naoki MIYAZAKI, Masayoshi ISHIDA, Akihiro NAKANO
    Jul. 2016, International Journal of Microgravity Sciene and Application, 33(3) (3), 330305–1 - 330305–7, English, Domestic magazine
    Scientific journal

  • Akihiro Nakano, Takahisa Nishizu
    Jul. 2016, CRYOGENICS, 77, 43 - 48, English
    [Refereed]
    Scientific journal

  • Ito, H., Miyazaki, N., Ishida, M., Nakano, A.
    Apr. 2016, International Journal of Hydrogen Energy, 41(13) (13), 5803 - 5815, English
    Scientific journal

  • Bhogilla, S.S., Ito, H., Kato, A., Nakano, A.
    Jan. 2016, International Journal of Hydrogen Energy, 41(2) (2), 1224 - 1236, English
    [Refereed]
    Scientific journal

  • Bhogilla, S.S., Ito, H., Kato, A., Nakano, A.
    Sep. 2016, Applied Energy, 177, 309 - 322, English
    [Refereed]
    Scientific journal

  • Ito, H., Iwamura, T., Someya, S., Munakata, T., Nakano, A., Heo, Y., Ishida, M., Nakajima, H., Kitahara, T.
    Feb. 2016, Journal of Power Sources, 306, 289 - 299, English
    Scientific journal

  • Ito, H., Abe, K., Ishida, M., Hwang, C.M., Nakano, A.
    Dec. 2015, International Journal of Hydrogen Energy, 40(46) (46), 16556 - 16565, English
    Scientific journal

  • MIYAZAKI Naoki, ISHIDA Masayoshi, ITO Hiroshi, NAKANO Akihiro
    Electric power storage systems based on hydrogen storage device, water electrolyzer and fuel cell have been developed for load leveling. Unitized regenerative fuel cell (URFC) is promising for cost reduction and improvement of operating rate of the system. In this study, stack efficiency and system efficiency considering auxiliaries power and exhaust heat energy of 1 kW class URFC system with auxiliaries were evaluated and compared to the dedicated devices. In addition, response for fluctuated input for electrolysis operation was verified to assume utilization of photovoltaics.
    The Japan Institute of Energy, 2015, Proceedings of the Annual Conference of The Japan Institute of Energy, 24, 322 - 323, Japanese

  • Nakano, A., Ito, H., Bhogilla, S.S., Motyka, T., Corgnale, C., Greenway, S., Hauback, B.
    Jan. 2015, International Journal of Hydrogen Energy, 40(6) (6), 2663 - 2672
    Scientific journal

  • Ito, H., Abe, K., Ishida, M., Nakano, A., Maeda, T., Munakata, T., Nakajima, H., Kitahara, T.
    Feb. 2014, Journal of Power Sources, 248, 822 - 830, English
    Scientific journal

  • H. Ito, A. Nakano, T. Iwamura, S. Someya, T. Munakata
    2014, POLYMER ELECTROLYTE FUEL CELLS 14, 64(3) (3), 501 - 508, English
    International conference proceedings

  • Ito, H., Maeda, T., Nakano, A., Kato, A., Yoshida, T.
    Jun. 2013, Electrochimica Acta, 100, 242 - 248, English
    Scientific journal

  • Nakano, A., Ito, H., Maeda, T., Munakata, T., Motyka, T., Corgnale, C., Greenway, S., Perez-Berrios, J.M.
    Apr. 2013, Journal of Alloys and Compounds, 580(SUPPL1) (SUPPL1)
    Scientific journal

  • Corgnale, C., Motyka, T., Greenway, S., Perez-Berrios, J.M., Nakano, A., Ito, H., Maeda, T.
    Apr. 2013, Journal of Alloys and Compounds, 580(SUPPL1) (SUPPL1)
    Scientific journal

  • C. M. Hwang, H. Ito, T. Maeda, A. Nakano, A. Kato, T. Yoshida
    2013, POLYMER ELECTROLYTE FUEL CELLS 13 (PEFC 13), 58(1) (1), 1059 - 1068, English
    International conference proceedings

  • Hiroshi Ito, Tetsuhiko Maeda, Akihiro Nakano, Chul Min Hwang, Masayoshi Ishida, Atsushi Kato, Tetsuya Yoshida
    May 2012, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 37(9) (9), 7418 - 7428, English
    Scientific journal

  • Akihiro Nakano, Tetsuhiko Maeda, Hiroshi Ito, Masao Masuda, Yoshiaki Kawakami, Manabu Tange, Toru Takahashi, Keiichi Nishida
    Mar. 2012, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 37(6) (6), 5056 - 5062, English
    [Refereed]
    Scientific journal

  • Thuchayapong, N., Nakano, A., Sakulchangsatjatai, P., Terdtoon, P.
    2012, Applied Thermal Engineering, 32(1) (1)
    Scientific journal

  • C. M. Hwang, H. Ito, T. Maeda, A. Nakano, A. Kato, T. Yoshida
    2012, ECS Transactions, 50(2) (2), 787 - 794, English
    International conference proceedings

  • Hwang, C.M., Ishida, M., Ito, H., Maeda, T., Nakano, A., Kato, A., Yoshida, T.
    Mar. 2012, Journal of Power Sources, 202, 108 - 113, English
    [Refereed]
    Scientific journal

  • Akihiro Nakano, Tetsuhiko Maeda, Hiroshi Ito, Theodore Motyka, Jose M. Perez-Berrios, Scott Greenway
    Jan. 2012, Energy Procedia, 29, 463 - 468

  • Hiroshi Ito, Tetsuhiko Maeda, Akihiro Nakano, Hiroyasu Takenaka
    Aug. 2011, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 36(17) (17), 10527 - 10540, English

  • Tetsuhiko Maeda, Akihiro Nakano, Hiroshi Ito, Manabu Tange, Yoshiaki Kawakami, Atsushi Kato, Masao Masuda
    Informa UK Limited, Apr. 2011, Journal of International Council on Electrical Engineering, 1(2) (2), 194 - 199
    Scientific journal

  • H. Ito, T. Maeda, A. Nakano, C. M. Hwang, M. Ishida, A. Kato, T. Yoshida
    2011, POLYMER ELECTROLYTE FUEL CELLS 11, 41(1) (1), 469 - 477, English
    International conference proceedings

  • THE ACTUAL OPERATION OF MULTIPLE METAL HYDRIDE HYDROGEN STORAGE TANKS IN TOTALIZED HYDROGEN ENERGY UTILIZATION SYSTEM
    Yoshiaki Kawakami, Masao Masuda, Tetsuhiko Maeda, Akihiro Nakano, Manabu Tange, Atsushi Takahashi, Masakazu Shoji, Hideyuki Aoki, Takatoshi Miura
    2011, PROCEEDINGS OF THE ASME/JSME 8TH THERMAL ENGINEERING JOINT CONFERENCE 2011, VOL 2, 313 - +, English
    [Refereed]
    International conference proceedings

  • Kawakami Yoshiaki, Masuda Masao, Maeda Tetsuhiko, Tange Manabu, Nakano Akihiro, Takahashi Atsushi, Shoji Masakazu, Aoki Hideyuki, Miura Takatoshi
    筆者らは民生用建築物を対象とした水素利用システムを提案し，開発を進めている．本システムの水素貯蔵装置である水素吸蔵合金タンクにおいて，実運用で想定される複数台タンク群による運転制御方式を検討するために，合金タンク群の運転モデルを構築し，実験と計算結果の比較を通じてその妥当性を確認した．さらに，高効率な運転方法を実験と計算によって検討した結果，合金タンク群の台数制御と循環水配管の接続方法の組み合わせによって，所定温度の冷熱を高効率に取得できることを明らかにした．
    The Heat Transfer Society of Japan, 2011, Proceedings of National Heat Transfer Symposium, 2011(0) (0), 68 - 68, Japanese

  • KAWAKAMI Yoshiaki, MASUDA Masao, MAEDA Tetsuhiko, TANGE Manabu, NAKANO Akihiro, TAKAHASHI Atsushi, SHOJI Masakazu, AOKI Hideyuki, MIURA Takatoshi
    In order to use energy more efficiently, progress of energy storage technology is indispensable. Hydrogen is one of the energy storage media with the potential as an energy career. We have proposed the Totalized Hydrogen Energy Utilization System (THEUS) for applying to commercial buildings. THEUS is composed of fuel cells, water electrolyzers, hydrogen storage tanks and their auxiliaries. THEUS contributes to electric power load leveling, providing a stable supply of power for emergencies, and energy-saving for building energy consumption. We have developed the hydrogen storage tank using metal hydride alloy. This is the important component of THEUS. This paper presents the operation control method for multiple metal hydride tanks in THEUS. The mathematical model of the multiple metal hydride tanks was developed by which it is possible to reproduce driving. Several methods for controlling the operation of multiple metal hydride tanks, which would likely be used in actual operation, is proposed. Then, effects of the proposed method on hydrogen storage state are investigated by results of experiment and calculation using multiple metal hydride tanks. Method B2, with the water circulation pipes connected in series and the multiple metal hydride tanks control, make the most of the metal hydride tank flexibility with respect to tank selection.
    The Society of Heating, Air-Conditioning & Sanitary Engineers of Japan, 2011, Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan, 36(166) (166), 27 - 34, Japanese

  • KAWAKAMI Yoshiaki, MASUDA Masao, MAEDA Tetsuhiko, TANGE Manabu, NAKANO Akihiro, TAKAHASHI Atsushi, SHOJI Masakazu, AOKI Hideyuki, MIURA Takatoshi
    Hydrogen which is one of the energy storage media has a high possibility of energy career. We have proposed the Totalized Hydrogen Energy Utilization System (THEUS) for applying to commercial buildings. THEUS is composed of fuel cells, water electrolyzers, hydrogen storage tank and their auxiliaries. THEUS contributes to electric power load leveling, providing a stable supply of power for emergencies, and energy-saving for building energy consumption. We have developed the hydrogen storage tank using metal hydride alloy. This paper presents operation control methods to use hydrogen reaction heat efficiently in actual operation. The mathematical model of the multiple metal hydride tanks has been developed by which it is possible to reproduce driving. Several methods for controlling the operation of multiple metal hydride tanks, which would likely be used in actual operation, is proposed. Effects of actual load patterns and proposed methods were investigated experimentally and numerically on multiple metal hydride tanks operation. From the comparison between calculated results and experimental results, it is confirmed that the mathematical model calculation can estimate the driving behavior of the multiple metal hydride tanks. Then, multiple tanks control pressure values of each actual load pattern were determined for the operation efficiency optimization by the mathematical model. Method B2, with the water circulation pipes connected in series and the multiple metal hydride tanks control, could obtain cold source with high efficiency.
    The Society of Heating, Air-Conditioning & Sanitary Engineers of Japan, 2011, Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan, 36(168) (168), 1 - 9, Japanese

  • Hwang, C.M., Ishida, M., Ito, H., Maeda, T., Nakano, A., Hasegawa, Y., Yokoi, N., Kato, A., Yoshida, T.
    Jan. 2011, International Journal of Hydrogen Energy, 36(2) (2), 1740 - 1753, English
    Scientific journal

  • Maeda, T., Nishida, K., Tange, M., Takahashi, T., Nakano, A., Ito, H., Hasegawa, Y., Masuda, M., Kawakami, Y.
    Aug. 2011, International Journal of Hydrogen Energy, 36(17) (17), 10845 - 10854, English
    [Refereed]
    Scientific journal

  • DESIGN CONCEPT AND THE PERFORMANCE OF A METAL HYDRIDE HYDROGEN STORAGE TANK IN TOTALIZED HYDROGEN ENERGY UTILIZATION SYSTEM
    Maeda, Tetsuhiko, Nishida, Keiichi, Yamazaki, Shiro, Kawakami, Yoshiaki, Masuda, Masao, Tange, Manabu, Hasegawa, Yasuo, Ito, Hiroshi, Nakano, Akihiro
    2011, PROCEEDINGS OF THE ASME/JSME 8TH THERMAL ENGINEERING JOINT CONFERENCE 2011, VOL 2, 307 - +, English
    [Refereed]
    International conference proceedings

  • Tange, M., Maeda, T., Nakano, A., Ito, H., Kawakami, Y., Masuda, M., Takahashi, T.
    Sep. 2011, International Journal of Hydrogen Energy, 36(18) (18), 11767 - 11776, English
    [Refereed]
    Scientific journal

  • Ito, H., Maeda, T., Nakano, A., Hasegawa, Y., Yokoi, N., Hwang, C.M., Ishida, M., Kato, A., Yoshida, T.
    Sep. 2010, International Journal of Hydrogen Energy, 35(18) (18), 9550 - 9560, English
    Scientific journal

  • Akihiro Nakano, Tetsuhiko Maeda, Hiroshi Ito, Masao Masuda, Yoshiaki Kawakami, Atsushi Kato, Manabu Tange, Toru Takahashi, Masahiro Matsuo
    Sep. 2010, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 35(17) (17), 9088 - 9094, English
    [Refereed]
    Scientific journal

  • H. Ito, T. Maeda, A. Nakano, C. M. Hwang, M. Ishida, N. Yokoi, Y. Hasegawa, A. Kato, T. Yoshida
    2010, POLYMER ELECTROLYTE FUEL CELLS 10, PTS 1 AND 2, 33(1) (1), 945 - +, English
    International conference proceedings

  • KAWAKAMI Yoshiaki, MASUDA Masao, MAEDA Tetsuhiko, TANGE Manabu, NAKANO Akihiro, TAKAHASHI Atsushi, SHOJI Masakazu, AOKI Hideyuki, MIURA Takatoshi
    In order to use energy more efficiently, progress of energy storage technology is indispensable. Hydrogen which is one of the energy storage media has a high possibility of energy career. We have proposed the Totalized Hydrogen Energy Utilization System (THEUS) for applying to commercial buildings. THEUS is composed of fuel cells, water electrolyzers, hydrogen storage tank and their auxiliaries. THEUS contributes to electric power load leveling, providing a stable supply of power for emergencies, and energy-saving for building energy consumption. We have developed the hydrogen storage tank using metal hydride alloy. This is the important component of THEUS. This paper presents the design method of optimization for the metal hydride tank in THEUS. We have developed the mathematical model of the metal hydride tank by which it is possible to reproduce driving. By using of this mathematical model, the optimum tank design and operation condition is obtained realizing to the simultaneous effective use of [1] hydrogen, [2] metal hydride and [3] heat as the model case for electric power load levering system. Higher effective operation cycle of the system is evaluated on the diagram of Pressure-Composition-Temperature characteristics.
    The Society of Heating, Air-Conditioning & Sanitary Engineers of Japan, 2010, Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan, 35(165) (165), 19 - 27, Japanese

  • Iida, T., Nakano, A., Murakami, M.
    Oct. 2009, Cryogenics, 49(10) (10), 528 - 534, English
    [Refereed]
    Scientific journal

  • Experimental study on capillary flow in intricate vane-wall geometry under micro-gravity conditions
    Nakano, A, Yamashita, T, Inoue, C, Himeno, T, Nishizu, T
    日本マイクログラビティ応用学会, 2009, International Journal of Microgravity Science andApplication, 26(3) (3), 197 - 203, English
    [Refereed]
    Scientific journal

  • Measurements of Dynamically Changed Liquid Volume under μG Conditions
    NISHIZU Takahisa, YAMASHITA Tomoki, INOUE Chihiro, HIMENO Takehiro, NAKANO Akihiro
    Oct. 2008, JASMA : Journal of the Japan Society of Microgravity Application, 25(4) (4), 769 - 769, English

  • Visualization Techniques for Thermo-fluid Phenomena in Cryogenic Fluids
    IIDA Teruhito, MURAKAMI Masahide, NAKANO Akihiro
    低温工学協会, Mar. 2008, Journal of the Cryogenic Society of Japan, 43(3) (3), 67 - 74, Japanese

  • PIV measurement result of superfluid HeII thermal counterflow jet
    M. Murakami, T. Takakoshi, M. Maeda, A. Nakano
    2008, ADVANCES IN CRYOGENIC ENGINEERING, VOLS 53A AND 53B, 985, 183 - +, English
    [Refereed]
    International conference proceedings

  • Liquid volume measurement for cryogens with a closed Helmholtz resonator under micro-gravity condition
    Nakano, A, Torikata, Y, Yamashita, T, Tateno, A, Nishizu, T
    2008, Cryogenics and Refrigeration-Proc. of ICCR'2008, 860 - 863, English
    [Refereed]
    International conference proceedings

  • Nakano, A.
    2007, International Journal of Heat and Mass Transfer, 50(23-24) (23-24)
    Scientific journal

  • Nakano, A., Torikata, Y., Yamashita, T., Sakamoto, T., Futaya, Y., Tateno, A., Nishizu, T.
    Feb. 2006, Cryogenics, 46(2-3) (2-3), 126 - 131, English
    Scientific journal

  • Nishizu, T., Torikata, Y., Yamashita, T., Sakamoto, T., Futaya, Y., Tateno, A., Nakano, A.
    2006, Microgravity Science and Technology, 18(3-4) (3-4), 190 - 195
    Scientific journal

  • M. Shiraishi, M. Murakami, A. Nakano, T. Iida
    2006, ADVANCES IN CRYOGENIC ENGINEERING, VOLS 51A AND B, 823, 27 - +, English
    International conference proceedings

  • Nakano, A., Shiraishi, M.
    Oct. 2005, International Communications in Heat and Mass Transfer, 32(9) (9), 1152 - 1164, English
    Scientific journal

  • Nakano, A., Shiraishi, M.
    Aug. 2005, Cryogenics, 45(8) (8), 557 - 565, English
    Scientific journal

  • Reduction of convective heat losses in pulse tube refrigerators by additional DC flow
    M. Shiraishi, Y. Fujisawa, M. Murakami, A. Nakano
    2005, ICEC 20: PROCEEDINGS OF THE TWENTIETH INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE, 273 - 276, English
    [Refereed]
    International conference proceedings

  • Visualization of secondary flow in tapered double-inlet pulse tube refrigerators
    M Shiraishi, M Murakami, A Nakano
    2005, CRYOCOOLERS 13, 1, 313 - 322, English
    International conference proceedings

  • ヘルムホルツ共鳴を利用した液量計測 －スピーカインピーダンス法について－
    西津 貴久, 鳥潟 康雄, 山下 智輝
    日本マイクログラビティ応用学会, 2005, ＪＡＳＭＡ, 22(2) (2), 121 - 127, Japanese

  • Nakano, A., Torikata, Y., Yamashita, T., Sakamoto, T., Futaya, Y., Nishizu, T.
    2005, Microgravity Science and Technology, 17(3) (3), 64 - 70, English
    Scientific journal

  • Nakano, A., Shiraishi, M.
    Dec. 2004, Cryogenics, 44(12) (12), 867 - 873, English
    Scientific journal

  • Liquid volume measurement for cryogen
    NAKANO Akihiro, TORIKATA Yasuo, YAMASHITA Tomoki, TATENO Akiko, NISHIZU Takahisa
    Nov. 2004, JASMA : Journal of the Japan Society of Microgravity Application = 日本マイクログラビティ応用学会誌, 21, 45 - 45, English

  • Technique for measuring liquid volume in a closed container
    NISHIZU Takahisa, TORIKATA Yasuo, YAMASHITA Tomoki, NAKANO Akihiro
    Nov. 2004, JASMA : Journal of the Japan Society of Microgravity Application = 日本マイクログラビティ応用学会誌, 21, 44 - 44, English

  • Shiraishi, M., Takamatsu, K., Murakami, M., Nakano, A.
    Feb. 2004, Cryogenics, 44(2) (2), 101 - 107, English
    Scientific journal

  • 西津 貴久, 中納 暁洋, 鳥潟 康雄, 山下 智輝
    The Japanese Society of Agricultural Machinery and Food Engineers, 2004, 農業機械学会誌, 66, 187 - 188, Japanese

  • Investigation for magnetic separation of oxygen from supercritical air near the maxcondentherm point
    A Nakano, M Shiraishi
    2004, ADVANCES IN CRYOGENIC ENGINEERING, VOLS. 49A AND B, 710, 1923 - 1930, English
    [Refereed]
    International conference proceedings

  • Reduction of secondary flow in inclined orifice pulse tubes by addition of DC flow
    M Shiraishi, Y Fujisawa, M Murakami, A Nanako
    2004, ADVANCES IN CRYOGENIC ENGINEERING, VOLS. 49A AND B, 710, 1560 - 1567, English
    International conference proceedings

  • Research & Development of Technique for measuring liquid volume in the construction of an infrastructure of a space transportation system
    NAKANO Akihiro, NISHIZU Takahisa, TORIKATA Yasuo, YAMASHITA Tomoki
    Oct. 2003, JASMA : Journal of the Japan Society of Microgravity Application, 20, 52 - 52, English

  • NAKANO Akihiro, SHIRAISHI Masao
    低温工学協会, 2003, Cryogenic engineering, 38(4) (4), 152 - 158, Japanese

  • NAKANO Akihiro, MUNAKATA Tetsuo
    Near feature, cryogenic propellants including liquid hydrogen, liquid oxygen and liquid natural gas will be handled on orbit for space transportation systems. It will be absolutely needed to measure the liquid volume under the micro-gravity condition. In the present study, Helmholtz resonance is applied to measure a liquid volume. In order to confirm the applicability of this measurement technique to cryogens, the micro-gravity experiment using liquid nitrogen was carried out. We report the experimental results and propose a measurement system for the practical application on orbit.
    The Japan Society of Mechanical Engineers, 2002, The proceedings of the JSME annual meeting, 2002, 211 - 212, Japanese

  • Experimental study on work flow in the pulse tube rerigerator
    T Ikeguchi, M Shiraishi, M Murakami, A Nakano, T Iida
    2002, ADVANCES IN CRYOGENIC ENGINEERING, VOL 47, PTS A AND B, 613, 799 - 806, English
    International conference proceedings

  • Visualization of oscillatory flow phenomena in tapered pulse tube refrigerators
    M Shiraishi, T Ikeguchi, M Murakami, A Nakano, T Iida
    2002, ADVANCES IN CRYOGENIC ENGINEERING, VOL 47, PTS A AND B, 613, 768 - 775, English
    International conference proceedings

  • NAKANO Akihiro, SHIRAISHI Masao
    This paper describes the results of a visualization study of the phase transition process and heat transport phenomenon in supercritical air near the maxcondentherm point. The phase transition from the vapor/liquid equilibrium state to the supercritical state is observed by the use of a shadowgraph technique. On the other hand, the heat transport phenomenon in supercritical air is investigated by the use of a laser holographic interferometer. The initial temperature gradient, which suppresses the generation of convection, is made in the experiment, and heat is applied in step functions from the planar heater. We can successfully observe the heat transport phenomenon in supercritical air, and the experimental results are compared with that of supercritical nitrogen, We report the difference of the heat transport phenomenon between the supercritical air and the supercritical nitrogen.
    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN, 2002, TEION KOGAKU, 37(6) (6), 265 - 270, Japanese

  • NAKANO Akihiro
    低温工学協会, 2002, Cryogenic engineering, 37(10) (10), 559 - 564, Japanese

  • ヘルムホルツ共鳴現象を利用した体積計測法の極低温流体への応用に関する研究
    2002, 日本マイクログラビティ応用学会誌, 19(3) (3), 179 - 184

  • Nakano, A., Murakami, M.
    Nov. 2001, Cryogenics, 41(11-12) (11-12), 817 - 823, English
    Scientific journal

  • Nakano, A., Shiraishi, M., Murakami, M.
    May 2001, Cryogenics, 41(5-6) (5-6), 429 - 435, English
    Scientific journal

  • 微小重力下における液量計測技術に関する研究
    2001, 日本マイクログラビティ応用学会誌, 18(4) (4), 263 - 268

  • Visualization of DC gas flows in a double-inlet pulse tube refrigerator with a second orifice valve
    M Shiraishi, K Takamatsu, M Murakami, A Nakano, T Iida, Y Hozumi
    2001, CRYOCOOLERS 11, 11, 371 - 379, English
    International conference proceedings

  • Experimental Study of Heat Transfer Phenomena between Working Gas and Tube Wall in a Pulse Tube Refrigerator
    2001, Advances in Cryogenic Engineering, 45 pp.111〜117, 111 - 117

  • Investigation of the Measurement Technique of Liquid Volume using Helmholtz Resonator under Micro-gravity Condition
    NAKANO Akihiro, KAMIYA Koji, MAKI Masane, MURAKAMI Masahide
    日本マイクログラビティ応用学会, Jul. 2000, JASMA, 17(3) (3), 183 - 189, Japanese

  • A. Nakano, M. Shiraishi, M. Nishio, S. Someya, T. Iida, M. Murakami
    Springer US, 2000, Advances in Cryogenic Engineering, 1245 - 1252
    In book

  • Visualization study of heat transfer near the critical point of nitrogen
    A Nakano, S Someya, M Shiraishi, M Nishio, T Iida, M Murakami
    2000, HEAT TRANSFER SCIENCE AND TECHNOLOGY 2000, 739 - 744, English
    [Refereed]
    International conference proceedings

  • NAKANO Akihiro, SHIRAISHI Masao, MURAKAMI Masahide
    低温工学協会, 2000, Cryogenic engineering, 35(9) (9), 458 - 464, Japanese

  • NAKANO Akihiro, SHIRAISHI Masao, SOMEYA Satoshi, NISHIO Masahiro, IIDA Teruhito, MURAKAMI Masahide
    This paper describes the results of a visualization study of the phase transition process and heat transport phenomenon in supercritical nitrogen. An experimental apparatus for the visualization study is designed to observe the heat transport phenomena. The experimental cell is a rectangular parallelepiped surrounded with two optical windows, a ceiling, two side-walls made of Bakelite and a planar heater at the bottom. Heat is applied in step functions from the planar heater. The phase transition from the vapor/liquid equilibrium state to the supercritical state is observed by the use of a shadowgraph technique. On the other hand, the heat transfer phenomenon in supercritical nitrogen is investigated using a laser holographic interferometer. The initial temperature gradient, which suppresses the generation of convection, is made in the experiment. We can successfully observe the heat transport phenomenon that the convection and piston effect carry thermal energy in supercritical nitrogen.
    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN, 2000, TEION KOGAKU, 35(2) (2), 79 - 86, Japanese

  • Visualization study of heat transport phenomena in supercritical nitrogen by using a laser holographic interferometer
    NAKANO Akihiro, SHIRAISHI Masao, NISHIO Masahiro, IIDA Teruhito, SOMEYA Satoshi, MURAKAMI Masahide
    Jun. 1999, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 60, 198 - 198, Japanese

  • Visualization study of the local flow field in an orifice and double-inlet pulse tube refrigerator
    M Shiraishi, N Nakamura, K Takamatsu, M Murakami, A Nakano
    1999, CRYOCOOLERS 10, 329 - 336, English
    [Refereed]
    International conference proceedings

  • NAKANO Akihiro, SHIRAISHI Masao, NISHIO Masahiro, MURAKAMI Masahide
    This paper describes the results of an experimental study of closed cryogenic two-phase thermosyphon with air as the working fluid. The thermosyphon, which was 270mm long with an inner diameter of 8mm, was operated over a wide pressure range, from near the triple point to the critical point of air. The axial temperature distributions within the thermosyphon were measured as a function of heat transfer rate under the conditions of various operating vapor pressure. The thermal resistance and the maximum heat transfer rate were obtained from the measurement. The present experimental data for air are compared with the data of thermosyphon with nitrogen as the working fluid.
    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN, 1999, TEION KOGAKU, 34(4) (4), 151 - 156, Japanese

  • Nakano, A., Petrac, D., Paine, C., Murakami, M.
    1999, Cryogenics, 39(5) (5), 471 - 479
    Scientific journal

  • Visualization Study of Flow Behavior in Pulse Tube Refrigerators
    SHIRAISHI Masao, NAKAMURA Nobuhiko, MURAKAMI Masahide, NAKANO Akihiro
    低温工学協会, Apr. 1998, Cryogenic engineering, 33(4) (4), 249 - 257, Japanese

  • Visualization study on flow behavior and work of working gas in a pulse tube refrigerator
    M Shiraishi, N Nakamura, K Takamatsu, M Murakami, A Nakano
    1998, INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE 1998, 73 - 76, English
    [Refereed]
    International conference proceedings

  • Numerical analysis of heat transport mechanism in nitrogen near the critical point
    A Nakano, M Shiraishi, M Nishio, F Takemura, M Murakami
    1998, ADVANCES IN CRYOGENIC ENGINEERING, VOL 43 PTS A AND B, 43, 1297 - 1304, English
    [Refereed]
    International conference proceedings

  • Investigation of large dynamic range performance of cryogenic two-phase thermosyphon
    A Nakano, M Shiraishi, M Nishio, M Murakami
    1998, INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE 1998, 663 - 666, English
    [Refereed]
    International conference proceedings

  • NAKANO Akihiro, SHIRAISHI Masao, NISHIO Masahiro, MURAKAMI Masahide
    低温工学協会, 1998, Cryogenic engineering, 33(1) (1), 30 - 35, Japanese

  • Nakano, A., Shiraishi, M., Nishio, M., Murakami, M.
    1998, Cryogenics, 38(12) (12), 1259 - 1266
    Scientific journal

  • Nakano, A., Petrac, D., Paine, C.
    1996, Cryogenics, 36(10) (10)
    Scientific journal

  • Murakami, M., Nakano, A., Kunisada, K.
    Feb. 1994, Physica B: Physics of Condensed Matter, 194-196(PART 1) (PART 1), 713 - 714, English
    Scientific journal

  • NAKANO Akihiro, MURAKAMI Masahide, KUNISADA Kei
    The flow structure of a thermal counterflow jet is investigated by direct measurement of the normal fluid velocity with a laser Doppler velocimeter (LDV). The temporal and spatial variation of the normal fluid velocity is measured to investigate the detailed nature of He II thermal counterflow jet. The velocity profile and the variation of the center-line velocity with the axial distance are also obtained to discuss the flow structure in a downstream region. It is found that the thermal counterflow jet in the far field behaves like a fully developed turbulent jet in ordinary fluids. It, however, seems that the way of development differs from that of ordinary fluid jets.
    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN, 1994, TEION KOGAKU, 29(5) (5), 194 - 199, Japanese

  • Nakano, A., Murakami, M., Kunisada, K.
    Dec. 1994, Cryogenics, 34(12) (12), 991 - 995, English
    [Refereed]
    Scientific journal

  • INVESTIGATION OF SUPERFLUID TURBULENT CHARACTERISTICS IN A THERMAL COUNTERFLOW JET USING A LASER-DOPPLER VELOCIMETER
    A NAKANO, M MURAKAMI
    1994, ADVANCES IN CRYOGENIC ENGINEERING, VOL 39, PTS A AND B, 39, 1843 - 1849, English
    International conference proceedings

  • Nakano, A., Murakami, M.
    1994, Cryogenics, 34(3) (3), 179 - 185
    Scientific journal

  • NAKANO Akihiro, MURAKAMI Masahide
    A laser Doppler velocimeter (LDV) was applied to the measurement of thermal counterflow jet in He II, which is capable of direct measurement of the normal fluid velocity at the jet nozzle exit. The analysis of velocity measurement suggests that the normal fluid jet entrains the surrounding superfluid, which result in the zero relative velocity of two fluid even very close to the nozzle exit. It is demonstrated that the second sound Helmholtz oscillation measurement is of use as a diagnostics for superfluid turbulent state. The frequency and the decay of the oscillation were investigated for this purpose. It is also suggested that a weak superfluid turbulent state may exist in small heat input case. While, in large heat input case, the turbulent state was identified as the Gorter-Mellink type superfluid turbulent state.
    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN, 1993, TEION KOGAKU, 28(3) (3), 143 - 149, Japanese

  • Nakano, A., Murakami, M.
    Advances in Cryogenic Engineering, 1991, Advances in Cryogenic Engineering, 37(pt A) (pt A), 97 - 103, English
    Scientific journal

  • LASER DOPPLER-VELOCIMETER APPLIED TO SUPERFLOW MEASUREMENT
    M MURAKAMI, T YAMAZAKI, A NAKANO, H NAKAI
    1991, HIGH REYNOLDS NUMBER FLOWS USING LIQUID AND GASEOUS HELIUM, 215 - 221, English
    [Refereed]
    International conference proceedings

  • Murakami, Masahide, Yamazaki, Tsutom, Nakano, Akihiro, Nakai, Hirotaka
    Advances in Cryogenic Engineering, 1990, Advances in Cryogenic Engineering, 35(pt A) (pt A)
    Scientific journal

  • Hanyu, Tetsuya, Nakano, Akihiro, Murakami, Masahide
    Advances in Cryogenic Engineering, 1990, Advances in Cryogenic Engineering, 35(pt A) (pt A)
    Scientific journal

■ MISC
  • Ito, H., Nakano, A.
    2018, Nanostructured Materials for Next-Generation Energy Storage and Conversion: Fuel Cells

  • Satya Sekhar Bhogilla, Hiroshi Ito, Atsushi Kato, Akihiro Nakano
    01 Jan. 2016, WHEC 2016 - 21st World Hydrogen Energy Conference 2016, Proceedings, 40 - 42

  • Akihiro Nakano, Hiroshi Ito, Theodore Motyka, Claudio Corgnale, Scott Greenway, Bjørn C. Hauback
    01 Jan. 2014, 20th World Hydrogen Energy Conference, WHEC 2014, 2, 958 - 964

  • G221 Study on horizontal metal hydride tank designed to recover reaction heat from metal hydride alloy
    Nakano Akihiro, Ito Hiroshi, Maeda Tetsuhiko, Munakata Tetsuo, Motyka Theodore, Greenway Scott, Corgnale Claudio
    Two horizontal metal hydride tanks with a double coil heat exchanger that contained 50 kg of MmNi_5 metal hydride alloy with different Pressure-Composition-Temperature (PCT) isotherm properties were developed and tested in this study. One was designed for the experiments in USA and the other was designed for the experiments in Japan in which there is the high pressure gas safety act. The reaction heat recovery rates of these tanks were compared and it was confirmed that the reaction heat recovery rates were almost the same. However it could not be filled the tank up with hydrogen in the case of the Japanese specifications.
    The Japan Society of Mechanical Engineers, 18 Oct. 2013, Procee[d]ings of Thermal Engineering Conference, 2013, 397 - 398, Japanese

  • 19^ World Hydrogen Energy Conference
    NAKANO Akihiro
    05 Sep. 2012, エネルギー・資源 = Energy and resources, 33(5) (5), 287 - 289, Japanese

  • Studies on improvement of reaction heat use in metal hydride tank
    NISHIDA Keiichi, YAMAZAKI Shiro, MAEDA Tetsuhiko, ITO Hiroshi, NAKANO Akihiro, KODAMA Hiroyuki, HASEGAWA Yasuo, TANGE Manabu, MASUDA Masao, KAWAKAMI Yoshiaki
    11 Mar. 2010, 電気学会研究会資料. FTE, 新エネルギー・環境研究会, 2010(15) (15), 63 - 68, Japanese

  • Tange Manabu, Tsutsui Yoko, Maeda Tetsuhiko, Nakano Akihiro, Masuda Masao, Kawakami Yoshiaki
    商用ビルの電力負荷平準を背景として，水素をエネルギーキャリアとして用い，水素吸蔵合金に貯蔵することを考える．水素放出時の反応熱を冷熱として空調に利用することができるが，熱容量の大きい吸蔵合金やタンクの冷却に使われてしまう熱量が無視できないという問題があった．本研究では水素吸蔵合金タンク内部の熱物質輸送を数値的に解析し，実験結果との比較を行った．また複数のタンクを用いて反応熱を有効に利用する特殊な運転形態を提案する．
    The Heat Transfer Society of Japan, 2010, Proceedings of National Heat Transfer Symposium, 2010(0) (0), 77 - 77, Japanese

  • Nishida Keiichi, Maeda Tetsuhiko, Nakano Akihiro, Ito Hiroshi, Hasegawa Yasuo, Tange Manabu, Masuda Masao, Kawakami Yoshiaki
    We have studied on metal hydride tanks for load leveling of commercial buildings. The storage tank with 50 kg AB5 type metal hydride alloy was assembled to investigate the hydrogen absorbing/desorbing process, which is exothermic/endothermic process. We have a plan to utilize hot heat and cold heat of each process for air conditioning that could be expected to improve the system efficiency. In order to get high availability of reaction heat, optimization of operating method is required. For this reason, evaluation of operating method is carried out by experiment and numerical simulation.
    The Japan Society of Mechanical Engineers, 2010, The Proceedings of the Thermal Engineering Conference, 2010(0) (0), 247 - 248, Japanese

  • Studies on use of reaction heat in metal hydride tank
    YAMAZAKI Shiro, MAEDA Tetsuhiko, ITO Hiroshi, NAKANO Akihiro, KODAMA Hiroyuki, HASEGAWA Yasuo, TANGE Manabu, MASUDA Masao, KAWAKAMI Yoshiaki
    02 Dec. 2009, 電気学会研究会資料. FTE, 新エネルギー・環境研究会, 2009(66) (66), 59 - 64, Japanese

  • Development of hydrogen liquefier using GM-refrigerator
    NAKANO Akihiro, MAEDA Tetsuhiko, KODAMA Hiroyuki, ITO Hiroshi, MASUDA Masao, KAWAKAMI Yoshiaki, KATO Atsushi, MATSUO Masahiro
    18 Nov. 2009, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 81, 76 - 76, Japanese

  • D134 Studies on Metal Hydride Tank in Totalized Hydrogen Energy Utilization System for Buildings : Evaluation and Design of the System Operation
    Kawakami Yoshiaki, Masuda Masao, Takahashi Atsushi, Maeda Tetsuhiko, Nakano Akihiro, Tange Manabu, Matushita Yohsuke, Aoki Hideyuki, Miura Takatoshi
    We proposed the totalized hydrogen energy utilization system that consists of a fuel cell device, a water electrolysis device and metal hydride tanks, and developed the mathematical model of hydrogen storage system that composes of several metal hydride tanks. The discharging hydrogen performance was investigated experimentally and numerically. As a results, it was shown that if the circulating water piping that flows in metal hydride tanks was connected with the series, and control method that increased the number of operating tanks are adopted when the outlet pressure of hydrogen decreases, hydrogen in each tank could be efficiently used.
    The Japan Society of Mechanical Engineers, 2009, Procee[d]ings of Thermal Engineering Conference, 109 - 110, Japanese

  • MASUDA Masao, KAWAKAMI Yoshiaki, TAKAHASHI Atsushi, MAEDA Tetsuhiko, NAKANO Akihiro, TANGE Manabu
    We proposed the Totalized Hydrogen Energy Utilization System (THEUS) for applying to commercial buildings. By introducing this system in actual fields, we have realized the simultaneously effective uses of electricity, hydrogen and heat, hi this paper, we reported energy efficiency evaluation of the system by the calculation. Data as heat demand for seven type buildings were used, including buildings with different scales, applications, and characteristics of heat load. In comparison with an ice storage system, it has been proved that the hydrogen system has the advantage of 9-17% in terms of effective energy use. Moreover, the flexible operation of metal hydride tanks for fluctuating heat demand of the building was evaluated.
    The Japan Society of Mechanical Engineers, 2009, The Proceedings of the Symposium on Environmental Engineering, 2009(0) (0), 477 - 480, Japanese

  • Yamazaki Shiro, Maeda Tetsuhiko, Kodama Hiroyuki, Hasegawa Yasuo, Nakano Akihiro, Masuda Masao, Kawakami Yoshiaki, Tange Manabu
    We have investigated the hydrogen storage tanks with metal hydrides employed for load leveling of commercial buildings. The storage tank with 50 kg AB5 type metal hydride alloy was assembled to investigate the hydrogen absorbing / desorbing process, which is exothermic / endothermic process. We have a plan to utilize hot heat and cold heat of each process for air conditioning that can expect to improve the system efficiency. To verify the practical effectiveness of the idea, we planned the special operating procedure and carried out the experiments. Here, we report the experimental results and discuss the effectiveness of the system using the energy balance analysis.
    The Japan Society of Mechanical Engineers, 2009, The Proceedings of the Thermal Engineering Conference, 2009(0) (0), 107 - 108, Japanese

  • Study on Soret effect in nitrogen-oxygen binary mixtures with different composition near their critical points
    NAKANO Akihiro, MAEDA Tetsuhiko, MUNAKATA Tetsuo
    26 May 2008, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 78, 61 - 61, Japanese

  • Study on the high flexibility metal hydride tank for stationary totalized hydrogen energy utilization system with renewable energy
    Tetsuhiko Maeda, Hiroshi Ito, Akihiro Nakano, Manabu Tange, Yoshiaki Kawakami, Masao Masuda, Atsushi Kato, Hideyuki Okamoto
    2008, 17th World Hydrogen Energy Conference 2008, WHEC 2008, 1, 388 - 391
    [Refereed]

  • D133 Investigation of the soret effect in artificial air near the critical point
    Nakano Akihiro, Maeda Tetsuhiko, Munakata Tetsuo
    We have investigated heat and mass transport phenomena in artificial air near the critical point to obtain a technical expertise in efficient recovering of the cold energy from liquefied natural gas or liquid hydrogen by using air. The soret effect in artificial air, which was nitrogen-oxygen binary mixture with the composition of 79.1mol% of nitrogen and 20.9mol% of oxygen, was investigated by using a single stage two-chamber cell. We obtained the thermal diffusion ratio from a series of experiments and confirmed that it assigned negative near the critical point.
    The Japan Society of Mechanical Engineers, 23 Nov. 2007, Procee[d]ings of Thermal Engineering Conference, 2007, 151 - 152, Japanese

  • Measurement of thermal diffusion ratio in nitrogen-oxygen binary mixture near the critical point
    NAKANO Akihiro
    16 May 2007, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 76, 57 - 57, Japanese

  • Numerical simulation for heat transport phenomena in a binary mixture supercritical fluid
    NAKANO Akihiro, SHIRAISHI Masao
    15 May 2006, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 74, 123 - 123, Japanese

  • Effect of Crystal and Crucible Rotations on CZ Melt Convection Instability
    宗像鉄雄, 中納暁洋, 染矢聡
    2006, 日本伝熱シンポジウム講演論文集(CD-ROM), 43rd, C124, Japanese

  • Control of DC flow in double-inlet pulse tube refrigerators (II)
    SHIRAISHI Masao, MURAKAMI Masahide, NAKANO Akihiro
    21 Nov. 2005, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 73, 85 - 85, Japanese

  • Control of DC flow in double-inlet pulse tube refrigerators (I)
    SHIRAISHI Masao, MURAKAMI Masahide, NAKANO Akihiro
    21 Nov. 2005, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 73, 84 - 84, Japanese

  • Effect of tapered wall on a secondary flow in double-inlet pulse tube refrigerators
    SHIRAISHI Masao, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    01 Nov. 2004, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 71, 72 - 72, Japanese

  • Consideration of reduction mechanism of gravity-driven secondary flow in pulse tube refrigerators
    SHIRAISHI Masao, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    03 Dec. 2003, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 69, 164 - 164, Japanese

  • 2 Dimensional Numerical Study of Piston Effect in Supercritical Nitrogen
    NAKANO Akihiro, SHIRAISHI Masao
    03 Dec. 2003, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 69, 264 - 264, Japanese

  • Consideration of gravity convective secondary flows in pulse tube refrigerators
    SHIRAISHI Masao, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    21 May 2003, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 68, 163 - 163, Japanese

  • Performance of pulse tube refrigerators in a low temperature range (3)
    FUJISAWA Yoshitaka, SHIRAISHI Masao, YASUNO Kenji, MURAKAMI Masahide, NAKANO Akihiro
    21 May 2003, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 68, 165 - 165, Japanese

  • Performance of pulse tube refrigerators having a regenerator with non-uniform heat capacity
    SHIRAISHI Masao, YASUNO Kenji, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    21 May 2003, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 68, 164 - 164, Japanese

  • Visualization study for magnetic separation of oxygen from supercritical air
    NAKANO Akihiro, SHIRAISHI Masao
    30 Oct. 2002, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 67, 308 - 308, Japanese

  • Control of a secondary flow in pulse tube refrigerators
    SHIRAISHI Masao, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    30 Oct. 2002, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 67, 281 - 281, Japanese

  • Study of method for measuring liquid volume in a closed vessel using acoustic wave
    NAKANO Akihiro
    17 Oct. 2002, JASMA : Journal of the Japan Society of Microgravity Application, 19, 43 - 43, English

  • Investigations of heat transport phenomena in single-component and multi-components supercritical fluids
    NAKANO Akihiro, SHIRAISHI Masao
    17 Oct. 2002, JASMA : Journal of the Japan Society of Microgravity Application, 19, 65 - 65, English

  • Operating performance of pulse tube refrigerators in low temperature range
    SHIRAISHI Masao, FIJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    Cooling performance of pulse tube refrigerators was investigated in a temperature range from about 270K to 80K to apply cooling systems for a temperature range higher than the liquid nitrogen temperature. Helium and nitrogen were used as a working gas. It is found that performance of refrigerator with nitrogen is more influenced by the connecting tube between a hot end of pulse tube to a reservoir than that with helium, and pulse tube refrigerators that are deigned and optimized for helium didn't always work as refrigerators with high performance for nitrogen.
    The Japan Society of Mechanical Engineers, 15 Oct. 2002, The Symposium on Stirlling Cycle, 2002(6) (6), 107 - 108, Japanese

  • Visualization study of piston effect in supercritical air
    NAKANO Akihiro, SHIRAISHI Masao
    18 May 2002, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 66, 52 - 52, Japanese

  • Energy flow in a regenerator of pulse tube refrigerator
    SHIRAISHI Masao, IKEGUCHI Takuya, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    18 May 2002, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 66, 132 - 132, Japanese

  • Performance of pulse tube refrigerators in a low temperature range
    FUJISAWA Yoshitaka, SHIRAISHI Masao, IKEGUCHI Takuya, MURAKAMI Masahide, NAKANO Akihiro
    18 May 2002, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 66, 131 - 131, Japanese

  • Influences of shape of pipe wall on flow phenomena near wall in a pulse tube refrigerator
    SHIRAISHI Masao, IKEGUCHI Takuya, MURAKAMI Masahide, NAKANO Akihiro
    18 May 2002, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 66, 133 - 133, Japanese

  • Study of liquid volume measurement for cryogens under micro-gravity conditions
    NAKANO Akihiro, MURAKAMI Masahide
    23 Nov. 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 65, 125 - 125, Japanese

  • Enthalpy Flow in a Regenerator of Pulse Tube Refrigerator
    IKEGUCHI Takuya, SHIRAISHI Masao, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    23 Nov. 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 65, 268 - 268, Japanese

  • Observation of flow phenomena in a tapered pulse tube refrigerator
    SHIRAISHI Masao, IKEGUCHI Takuya, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    23 Nov. 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 65, 266 - 266, Japanese

  • Effects of taper angle on performance of a tapered pulse tube refrigerator
    SHIRAISHI Masao, IKEGUCHI Takuya, FUJISAWA Yoshitaka, MURAKAMI Masahide, NAKANO Akihiro
    23 Nov. 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 65, 267 - 267, Japanese

  • Investigation of heat transport phenomena near the critical point of supercritical air
    NAKANO Akihiro, SHIRAISHI Masao, MURAKAMI Masahide
    23 Nov. 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 65, 76 - 76, Japanese

  • Investigation of method for measuring liquid volume on orbit
    NAKANO Akihiro, MURAKAMI Masahide
    01 Oct. 2001, JASMA : Journal of the Japan Society of Microgravity Application, 18, 95 - 95, English

  • Visualization study of heat transport phenomena near the critical point of air
    NAKANO Akihiro, SHIRAISHI Masao, MURAKAMI Masahide
    16 May 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 64, 36 - 36, Japanese

  • Change of PV -Work in a Regenerator of Pulse Tube Refrigerator
    IKEGUCHI Takuya, SHIRAISHI Masao, MURAKAMI Masahide, NAKANO Akihiro
    16 May 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 64, 25 - 25, Japanese

  • Influences of shape of pipe wall on flow phenomena in a pulse tube refrigerator
    SHIRAISHI Masao, IKEGUCHI Takuya, MURAKAMI Masahide, NAKANO Akihiro
    16 May 2001, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 64, 24 - 24, Japanese

  • Investigation of the measurement technique of liquid volume on orbit
    NAKANO Akihiro, MURAKAMI Masahide
    31 Oct. 2000, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 63, 290 - 290, Japanese

  • Effects of direction of bypass valve on a secondary streaming in a double-inlet pulse tube refrigerator
    SHIRAISHI M., NAKANO A., IKEGUCHI T., MURAKAMI M.
    31 Oct. 2000, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 63, 163 - 163, Japanese

  • Influences of secondary streamings on a temperature distribution in pulse tube refrigerators
    SHIRAISHI M., NAKANO A., IKEGUCHI T., MURAKAMI M.
    31 Oct. 2000, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 63, 164 - 164, Japanese

  • Visualization study on effects of secondary orifice valve on a secondary streaming in a pulse tube refrigerator
    SHIRAISHI M., NAKANO A., TAKAMATU K., MURAKAMI M.
    29 May 2000, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 62, 43 - 43, Japanese

  • Visualization study on a secondary streaming in a double-inlet pulse tube refrigerator
    SHIRAISHI M., NAKANO A., TAKAMATU K., MURAKAMI M.
    29 May 2000, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 62, 42 - 42, Japanese

  • Experimental study of thermo-fluiddynamic phenomena in a regenerator of pulse tube refrigerator
    TAKAMATSU K., MURAKAMI M., SHIRAISHI M., NAKANO A.
    10 Nov. 1999, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 61, 230 - 230, Japanese

  • Visualization study on effects of frequency on acoustic streaming in a pulse tube refrigerator
    SHIRAISHI M., NAKANO A., TAKAMATU K., MURAKAMI M.
    10 Nov. 1999, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 61, 229 - 229, Japanese

  • Visualization study of heat transfer phenomenon "Piston effect" in supercritical nitrogen
    NAKANO Akihiro, SOMEYA Satoshi, SHIRAISHI Masao, NISHIO Masahiro, IIDA Teruhito, MURAKAMI Masahide
    10 Nov. 1999, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 61, 82 - 82, Japanese

  • Feasibility Study of Liquid Measurement Technique for Micro-Gravity Application
    NAKANO Akihiro
    01 Oct. 1999, JASMA : Journal of the Japan Society of Microgravity Application, 16, 111 - 111, English

  • Visualization study on the effect of inclination angle on the performance of pulse tube refrigerator
    SHIRAISHI M., NAKANO A., TAKAMATU K., MURAKAMI M.
    07 Jun. 1999, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 60, 51 - 51, Japanese

  • Experimental study on the local heat transfer between gas and pipe wall in a pulse tube refrigerator
    TAKAMATU K., MURAKAMI M., SHIRAISHI M., NAKANO A.
    07 Jun. 1999, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 60, 50 - 50, Japanese

  • Investigation of thermal resistance of cryogenic thermosyphon and feasibility study of new usage of the thermosyphon
    NAKANO Akihiro, SHIRAISHI Masao, NISHIO Masahiro, MURAKAMI Masahide
    13 Oct. 1998, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 59, 46 - 46, Japanese

  • Experimental study on local heat transfer between gas and pipe wall in a pulse tube refrigerator
    TAKAMATSU K., MURAKAMI M., SHIRAISHI M., NAKANOU A.
    13 Oct. 1998, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 59, 227 - 227, Japanese

  • Visualization study on thermodynamic works in a pulse tube refrigerator
    SHIRAISHI M., NAKANOU A., NAKAMURA N., TAKAMATU K., MURAKAMI M.
    13 Oct. 1998, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 59, 226 - 226, Japanese

  • Flow behavior and thermodynamic work in a pulse tube refrigerator
    SHIRAISHI M., NAKANOU A., NAKAMURA N., TAKAMATU K., MURAKAMI M.
    20 May 1998, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 58, 61 - 61, Japanese

  • Investigation of heat transport characteristics of a closed two-phase air thermosyphon
    NAKANO Akihiro, SHIRAISHI Masao, NISHIO Masahiro, MURAKAMI Masahide
    20 May 1998, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 58, 224 - 224, Japanese

  • 二相空気サーモサイフォンの実験的研究
    中納 暁洋, 白石 正夫, 西尾 匡弘, 村上 正秀
    18 Nov. 1997, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 57, 243 - 243, Japanese

  • Observation of Flow Phenomena in Bypass-line of a Double-inlet Pulse Tube Refrigerator
    SHIRAISHI M., NAKANOU A., NAKAMURA N., MURAKAMI M.
    18 Nov. 1997, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 57, 34 - 34, Japanese

  • Considerations in Improvement of Performance of Pulse Tube Refrigerator by Observing Inside Flow Phenomena
    SHIRAISHI M., NAKANOU A., NAKAMURA N., MURAKAMI M.
    18 Nov. 1997, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 57, 33 - 33, Japanese

  • 二相窒素サーモサイフォンの実験的研究
    中納 暁洋, 白石 正夫
    14 May 1997, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 56, 114 - 114, Japanese

  • 超臨界圧窒素の熱伝達特性に関する研究
    中納 暁洋, 白石 正夫, 竹村 文男, 西尾 匡弘
    06 Nov. 1996, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 55, 146 - 146, Japanese

  • 超流動崩壊状態における熱衝撃波伝播の数値解析
    金成 貴, 村上 正秀, 中納 暁洋
    03 Nov. 1995, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 54, 184 - 184, Japanese

  • 矩形断面ノズルを用いた熱カウンター流ジェットの流速測定
    今井 卓也, 村上 正秀, 中納 暁洋
    17 May 1995, 低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, 53, 119 - 119, Japanese

■ Affiliated Academic Society
  • 日本機械学会

  • マイクログラビティ応用学会

  • 低温工学会

■ Research Themes
  • 臨界点近傍における圧縮性多成分系流体の特異的熱輸送に関する研究
    中納 暁洋
    日本学術振興会, 科学研究費助成事業, 若手研究(B), 独立行政法人産業技術総合研究所, 2002 - 2004
    流体の臨界点近傍では比熱や圧縮率などの熱物理学量が発散するため、特異な熱的振る舞いを示す。単成分系流体の臨界点近傍における熱輸送に関しては、これまで数多くの研究がなされているが、多成分系流体についてはほとんど報告されていない。本研究の目的は多成分系の流体である空気の、相変化プロセスや最大露点近傍(臨界点近傍)での熱輸送現象を解明することにある。最終年度である本年度は、2成分系の人工空気(窒素79%、酸素21%)を用いて、実験セルの底部、及び、上部からそれぞれ加熱を行ったときの熱輸送現象を、レーザーホログラフィー干渉計で捉える可視化実験を実施した。実験セル底部から加熱を行った時、温度勾配の形成に伴い密度勾配が形成されるソレ効果を捉えることができた。一方、実験セル上部から加熱を行った時はソレ効果に加え、ピストン効果の存在を強く示唆する実験結果が得られた。このピストン効果で形成される密度場の特徴は熱流東が増すにつれ、より明確に現れることが確認できた。人工空気で得られた実験結果と通常の空気で得られた実験結果を比較すると、人工空気で得られた実験結果の方が、ソレ効果やピストン効果の特徴がよく現れていた。通常の空気の場合、窒素や酸素の他にアルゴンや微量の他の分子を含むため、現象が複雑になると考えられる。なお、圧縮性多成分流体においてもピストン効果による熱輸送が行われると予測していたが、本実験により、はじめてこのことを明らかにすることができた。 また、本年度は空気の主成分である窒素の超臨界域、擬臨界線周りで現れるピストン効果についての研究結果、及び、臨界点近傍において分子がクラスター化するという特性に着目した超臨界空気からの酸素の磁気分離に関する研究結果を国際誌上で発表した。

  • 高性能低温生成・利用技術に関する研究
    Competitive research funding

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