Research activity information

• May 2017 THE JAPAN INSTITUTE OF MARINE ENGINEERING, Encouragement Award, Fundamental Study of Sloshing inside Liquid Hydrogen Tank with External-Heating-Type MgB2 Level Sensors for Marine Transportation

  MAEKAWA KAZUMA

  Official journal


• May 2017 THE JAPAN INSTITUTE OF MARINE ENGINEERING, Lloyd's Register ENCOURAGEMENT PRIZE, Fundamental Study of Sloshing inside Liquid Hydrogen Tank with External-Heating-Type MgB2 Level Sensors for Marine Transportation

  MAEKAWA KAZUMA

  Official journal

• Measurement of Apparent Strain of Foil Strain Gauge at Low Temperature

  Sara Sato, Minoru Takeda, Kazuma Maekawa

  Oct. 2023, Proceedings of the 28th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2022, 70, 1108 - 1115, English

  [Refereed]

  International conference proceedings


• Fabrication of Long MgB₂ Wires for Liquid Hydrogen Level Sensor and Its Evaluation

  FUKUMOTO Shoichi, TAKADA Yoshihiro, TAKEDA Minoru, MAEKAWA Kazuma, KUMAKURA Hiroaki

  Cryogenic Association of Japan, 2022, TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 57(1) (1), 39 - 45

  Scientific journal


• Research and Development of Basic Technologies for Hydrogen Energy Marine Transportation:- Construction of a Liquid Hydrogen Experiment Facility -

  TAKEDA Minoru, MAEKAWA Kazuma

  To develop basic technologies for the marine transportation of hydrogen energy, a liquid hydrogen experiment facility (LHEF) has been designed and constructed at the Fukae campus of Kobe University. This LHEF consists of an experiment room, a measurement room, a H₂ gas vent line, a vacuum pumping line, high-pressure gas security equipment, etc. A liquid hydrogen (LH₂) optical cryostat equipped with a vacuum jacket, a liquid nitrogen space (15 L) and LH₂ space (20 L) has been installed in the experiment room. This paper explains the details of constructing the LHEF, including countermeasures for high-pressure gas security and experimental results using LH₂ obtained so far.

  CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN, 2020, TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 55(1) (1), 14 - 21, Japanese

  [Refereed][Invited]


• 若手研究者を中心とした研究・技術開発の取り組み 超伝導液面センサーを用いた液体水素タンク内部のスロッシング現象の解明

  前川 一真

  電気評論社, Aug. 2019, 電気評論, 104(8) (8), 56 - 60, Japanese

  [Invited]


• Study on boiling behavior of pressurized liquid nitrogen under rapid depressurization

  M Takeda, T Usui, K Maekawa

  IOP Publishing, Apr. 2019, IOP Conference Series: Materials Science and Engineering, 502, 012092, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Sloshing Measurements inside a Liquid Hydrogen Tank with External-Heating-Type MgB2 Level Sensors during Marine Transportation by the Training Ship Fukae-Maru

  MAEKAWA KAZUMA, TAKEDA MINORU, Yuuki Miyake, Hiroaki Kumakura

  Lead, MDPI, Oct. 2018, Sensors, 18(11) (11), 3694, English

  [Refereed][Invited]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• First experiment on liquid hydrogen transportation by ship inside Osaka bay

  K. Maekawa, M. Takeda, T. Hamaura, K. Suzuki, Y. Miyake, Y. Matsuno, S. Fujikawa, H. Kumakura

  Institute of Physics Publishing, Dec. 2017, IOP Conference Series: Materials Science and Engineering, 278(1) (1), English

  [Refereed]

  Scientific journal


• Hydraulic Characteristics of Helical-Type Seawater MHD Power Generator Tested in Shallow Water Tank

  Minoru TAKEDA, Atsushi TAKEUCHI, Soichiro TANAKA, Tomohiro OGAWA, Kazuma MAEKAWA, Shinji MATSUMOTO

  The Japan Institute of Marine Engineering (JIME), Oct. 2017, Proceedings of the International Symposium on Marine Engineering (ISME), 467 - 470, English

  [Refereed]

  International conference proceedings


• Dynamic Level-Detecting Characteristics of External-Heating-Type MgB2 Liquid Hydrogen Level Sensors Under Liquid Level Oscillation and Its Application to Sloshing Measurement

  Kazuma Maekawa, Minoru Takeda, Takaaki Hamaura, Kohei Suzuki, Yu Matsuno, Shizuichi Fujikawa, Hiroaki Kumakura

  Jun. 2017, IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 27(4) (4), English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Fundamental Study of Sloshing inside Liquid Hydrogen Tank with External-Heating-Type MgB2 Level Sensors for Marine Transportation

  MAEKAWA KAZUMA, TAKEDA MINORU, MATSUNO YU, FUJIKAWA SHIZUICHI, KURODA TSUNEO, KUMAKURA HIROAKI

  We aim to provide basic technology for the marine transportation of liquid hydrogen (LH₂). As one of the basic technologies, we are currently developing an external-heating-type superconducting magnesium diboride (MgB₂) level sensor for large liquid hydrogen tanks. The optimization of sensor performance and the effect of sensor length on thermal response were previously reported. Sloshing inside a liquid hydrogen tank, which is predicted to be more complex than that of liquefied natural gas (LNG), has not yet been clarified. In this study, we examined sloshing in a small liquid hydrogen tank using multiple external-heating-type MgB₂ sensors since these sensors exhibit good level-detection characteristics. As a result, the liquid level detection error from these sensors was up to about 4 mm, thereby showing good characteristics of dynamic level detection. Moreover, sloshing measurements with five level sensors were carried out successfully.

  The Japan Institute of Marine Engineering, May 2016, 日本マリンエンジニアリング学会誌, 51(3) (3), 125 - 131, Japanese

  [Refereed]

  Scientific journal


• Individual Difference Performance Evaluation of External-heating-type MgB2 Level Sensor for Liquid Hydrogen

  Kazuma MAEKAWA, Minoru TAKEDA, Yu MATSUNO, Shizuichi FUJIKAWA, Tsuneo KURODA, Hiroaki KUMAKURA

  Cryogenics and Superconductivity Society of Japan, Jul. 2015, Journal of the Cryogenics and Superconductivity Society of Japan, 50(7) (7), 368 - 373, Japanese

  [Refereed]

  Scientific journal


• Simulation of liquid level, temperature and pressure inside a 2000 liter liquid hydrogen tank during truck transportation

  Minoru Takeda, Hiroyuki Nara, Kazuma Maekawa, Shizuichi Fujikawa, Yu Matsuno, Tsuneo Kuroda, Hiroaki Kumakura

  2015, Physics Procedia, 67, 208 - 214, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Fundamental study of tank with MgB2 level sensor for transportation of liquid hydrogen

  Kazuma Maekawa, Minoru Takeda, Yu Matsuno, Shizuichi Fujikawa, Tsuneo Kuroda, Hiroaki Kumakura

  Lead, 2015, Physics Procedia, Vol.67, pp.208-214, 67, 1164 - 1168, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Superconducting characteristics of short MgB2 wires of long level sensor for liquid hydrogen

  M. Takeda, Y. Inoue, K. Maekawa, Y. Matsuno, S. Fujikawa, H. Kumakura

  2015, IOP Conference Series: Materials Science and Engineering, 101, 012156, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Research on Basic Technology to Realize Cryogenic Marine Transportation of Liquid Hydrogen

  Takeda Minoru, Yasui Ryota, Maekawa Kazuma, Inoue Yuki, Fujikawa Shizuichi, Matsuno Yu, Kuroda Tsuneo, Kumakura Hiroaki

  Kobe University, Jul. 2014, Review of Graduate School of Maritime Sciences, Kobe University, 11, 54 - 58, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• Effect of Sensor Length on Thermal Responce of External-heating-type MgB2 Level Sensor for Liquid Hydrogen

  MAEKAWA KAZUMA, TAKEDA MINORU, MATSUNO YU, FUJIKAWA SHIZUICHI, KURODA TSUNEO, KUMAKURA HIROAKI

  Jul. 2014, Journal of the JIME, 49(4) (4), 122 - 128, Japanese

  [Refereed]

  Scientific journal


• Optimization of External-heating-type MgB2 Level Sensor for Liquid Hydrogen

  Kazuma MAEKAWA, Minoru TAKEDA, Yu MATSUNO, Shizuichi FUJIKAWA, Tsuneo KURODA, Hiroaki KUMAKURA

  Cryogenics and Superconductivity Society of Japan, Feb. 2014, Journal of Cryogenics and Superconductivity Society of Japan, 49(2) (2), 69 - 75, Japanese

  [Refereed]

  Scientific journal


• Simulation analysis of temperature distribution of external-heating-type MgB_2 level sensor for liquid hydrogen

  奈良 洋行, MAEKAWA KAZUMA, TAKEDA MINORU, 藤川 静一, 松野 優, 黒田 恒生, 熊倉 浩明

  Kobe University, Jul. 2013, Review of Graduate School of Maritime Sciences, Kobe University, 10, 74 - 81, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• Simulation analysis of 2000 liter liquid hydrogen tank for transportation

  Nara Hiroyuki, Maekawa kazuma, Takeda Minoru, Fujikawa Shizuichi, Matsuno Yu, Kuroda Tsuneo, Kumamura Hiroaki

  Kobe University, Jul. 2013, Review of Graduate School of Maritime Sciences, Kobe University, 10, 68 - 73, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• Thermal response of MgB2 level sensor for liquid hydrogen using external heater

  Maekawa Kazuma, Takeda Minoru, Matsuno Yu, Fujikawa Shizuichi, Kuroda Tsuneo, Kumakura Hiroaki

  Feb. 2013, Proceedings of ICEC 24-ICMC 2012, 59 - 62, English

  [Refereed]

  International conference proceedings


• Synchronous measurements of liquid level, temperature and pressure inside a 2000 liter liquid hydrogen tank during a truck transportation

  Takeda Minoru, Fujikawa Shizuichi, Matsuno Yu, Maekawa Kazuma, Kuroda Tsuneo, Kumakura Hiroaki

  Feb. 2013, Proceedings of ICEC 24-ICMC 2012, 311 - 314, English

  [Refereed]

  International conference proceedings


• Thermal Response of MgB₂ Level Sensor for Liquid Hydrogen Using External Heater

  Maekawa Kazuma, Takeda Minoru, Matsuno Yu, Fujikawa Shizuichi, Kuroda Tsuneo, Kumakura Hiroaki

  Kobe University, Jul. 2012, Review of Graduate School of Maritime Sciences, Kobe University, 9, 39 - 45, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• Transportation Test of 2000 Liter Liquid Hydrogen Tank by Truck Using MgB₂ Level Sensor : Synchronous Measurements of Liquid Level, Temperature and Pressure inside Tank

  Takeda Minoru, Fujikawa Shizuichi, Matsuno Yu, Maekawa Kazuma, Kuroda Tsuneo, Kumakura Hiroaki

  Kobe University, Jul. 2012, Review of Graduate School of Maritime Sciences, Kobe University, 9, 33 - 38, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)

• 液体水素容器内部の蓄圧状態に関する数値シミュレーション

  松田竜之介, 前川一真, 武田 実

  2023年第70回応用物理学会春季学術講演会, Mar. 2023, Japanese

  Oral presentation


• 小型冷凍機を用いた水素液化に関する基礎研究

  山根直人, 武田 実, 前川一真

  2023年第70回応用物理学会春季学術講演会, Mar. 2023, Japanese

  Oral presentation


• 液体水素用流量計開発のための低温下におけるGFRP管の力学的特性研究

  佐藤 更, 杉原弥悠加, 武田 実, 前川一真

  第104回2022年度秋季低温工学・超電導学会, Dec. 2022, Japanese

  Oral presentation


• 横振動下における液体水素の熱流動特性に関する研究

  真鍋航輝, 米満侑作, 松田竜之介, 幡井翔悟, 前川一真, 武田 実

  第92回（令和4年度）マリンエンジニアリング学術講演会, Oct. 2022, Japanese

  Oral presentation


• 急加圧下における液体水素の温度・圧力・液面測定

  米満侑作, 真鍋航輝, 松田竜之介, 幡井翔悟, 前川一真, 武田 実

  第92回（令和4年度）マリンエンジニアリング学術講演会, Oct. 2022, Japanese

  Oral presentation


• 横振動下における極低温液体の流体シミュレーション

  池北智亮, 武田 実, 前川一真

  第103回2022年度春季低温工学・超電導学会, Jun. 2022, Japanese

  Oral presentation


• Measurement of apparent strain of foil strain gauge at low temperature

  Sara Sato, Minoru Takeda, Kazuma Maekawa

  ICEC28-ICMC 2022, Apr. 2022, English

  Poster presentation


• 液体水素タンク内部圧力の時間変化における充填率依存性

  永廣 衛, 松田竜之介, 武田 実, 前川一真

  第102回2021年度秋季低温工学・超電導学会, Dec. 2021, Japanese

  Oral presentation


• 横振動下における舶用タンク内部の極低温液体の流体シミュレーション

  池北智亮, 武田 実, 前川一真

  第91回（令和3年度）マリンエンジニアリング学術講演会, Sep. 2021, Japanese

  Oral presentation


• 液体水素海上輸送用MgB2液面計開発に関する基礎研究

  細川誠也, 武田 実, 前川一真, 松本明善, 熊倉浩明

  第91回（令和3年度）マリンエンジニアリング学術講演会, Sep. 2021

  Oral presentation


• 海上輸送時における液体水素タンクを対象とした熱流体解析

  前川一真, 岩佐太陽, 知念健太, 武田 実

  第101回2021年度春季低温工学・超電導学会, May 2021

  Poster presentation


• 加圧液体水素の減圧時における蒸発特性に関する研究

  前川一真, 中山郁夢, 永廣 衛, 武田 実

  第101回2021年度春季低温工学・超電導学会, May 2021, Japanese

  Poster presentation


• 極低温液体の貯蔵・輸送に関する数値シミュレーション

  知念健太, 前川一真, 岩佐太陽, 武田 実

  第101回2021年度春季低温工学・超電導学会, May 2021, Japanese

  Poster presentation


• 低温下におけるGFRP管内圧力変化に伴うひずみの測定

  佐藤 更, 武田 実, 前川一真

  第100回2020年度秋季低温工学・超電導学会, Dec. 2020, Japanese

  Poster presentation


• 液体水素タンク内部圧力の時間変化に関する研究

  永廣 衛, 中山郁夢, 岩佐太陽, 松田竜之介, 武田 実, 前川一真, 高橋和彦

  第100回2020年度秋季低温工学・超電導学会, Dec. 2020, Japanese

  Oral presentation


• 液体水素用外部加熱型MgB2長尺液面センサーの研究開発

  福本祥一, 高田芳宏, 荘林純一, 山本博和, 武田 実, 前川一真, 熊倉浩明

  第100回2020年度秋季低温工学・超電導学会, Dec. 2020, Japanese

  Oral presentation


• 液体水素の貯蔵・輸送に関する数値シミュレーション

  知念健太, 前川一真, 武田 実, 岩佐太陽

  第90回（令和2年）マリンエンジニアリング学術講演会, Oct. 2020, Japanese

  Oral presentation


• 液体水素の海上輸送時における容器内部の熱流動特性の計測と数値解析

  岩佐太陽, 前川一真, 知念健太, 武田 実

  第90回（令和2年）マリンエンジニアリング学術講演会, Oct. 2020, Japanese

  Oral presentation


• 横振動下における極低温液体の温度・圧力・蒸発量測定

  北田一輝, 武田 実, 前川一真

  第99回2020年度春季低温工学・超電導学会, Jul. 2020, Japanese

  Oral presentation


• 減圧時における加圧液体水素の観測

  中山郁夢, 赤松慧亮, 松田竜之介, 永廣 衛, 岩佐太陽, 知念健太, 武田 実, 前川一真, 熊倉浩明

  第99回2020年度春季低温工学・超電導学会, Jul. 2020, Japanese

  Oral presentation


• 液体水素用流量計開発のための低温用箔ひずみゲージの温度特性

  佐藤 更, 武田 実, 前川一真

  第99回2020年度春季低温工学・超電導学会, Jul. 2020, Japanese

  Oral presentation


• ヘリカル型海流MHD発電機の電気分解特性および電磁ブレーキに関する研究

  菊池祐希, 武田 実, 青木 誠, 前川一真

  第67回応用物理学会春季学術講演会, Mar. 2020, Japanese

  Oral presentation


• 横振動下における舶用タンク内部の極低温液体の温度・圧力・蒸発量測定

  北田一輝, 武田 実, 前川一真

  日本船舶海洋工学会講演会, Nov. 2019, Japanese

  Oral presentation


• 海上輸送用液体水素タンク開発のための急減圧時における液体水素容器内部の観測

  赤松慧亮, 武田 実, 前川一真, 岩佐太陽, 中山郁夢, 熊倉浩明

  日本船舶海洋工学会講演会, Nov. 2019, Japanese

  Oral presentation


• 練習船深江丸外洋航海中における液体水素タンク内部のスロッシング計測

  前川一真, 武田 実, 赤松慧亮, 岩佐太陽, 中山郁夢, 若林伸和, 矢野吉治, 熊倉浩明

  第89回（令和元年）マリンエンジニアリング学術講演会, Oct. 2019, Japanese

  Oral presentation


• 加圧液体窒素の減圧時における蒸発量の減圧速度依存性

  臼井智之, 北田一輝, 武田 実, 前川一真

  第98回2019年度春季低温工学・超電導学会, May 2019, Japanese

  Oral presentation


• 加圧液体窒素の減圧時における蒸発特性に関する研究

  USUI Tomoyuki, KITADA Kazuki, MAEKAWA Kazuma, TAKEDA Minoru

  第97回2018年度秋季低温工学・超電導学会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• 液体水素の蒸発ガスにおけるオルト・パラ組成比の経時変化

  SATO Sara, AOKI Makoto, TAKEDA Minoru, MAEKAWA Kazuma, HABERSTROH Christoph

  第97回2018年度秋季低温工学・超電導学会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• 輸送用液体水素タンク開発のための充填・貯蔵時における液体水素容器内部の観測

  AKAMATSU Keisuke, MIYAKE Yuuki, MAEKAWA Kazuma, TAKEDA Minoru, TAKAHASHI Kazuhiko, KUMAKURA Hiroaki

  第88回（平成30年）マリンエンジニアリング学術講演会, Oct. 2018, Japanese, Domestic conference

  Oral presentation


• 海上輸送時における液体水素容器内部の液面・温度・圧力測定

  MIYAKE Yuuki, MAEKAWA Kazuma, TAKEDA Minoru, KUMAKURA Hiroaki

  第88回（平成30年）マリンエンジニアリング学術講演会, Oct. 2018, Japanese, Domestic conference

  Oral presentation


• 横振動下における舶用タンク内部の極低温液体の温度分布測定

  KITADA Kazuki, USUI Tomoyuki, TAKEDA Minoru, MAEKAWA Kazuma

  第88回（平成30年）マリンエンジニアリング学術講演会, Oct. 2018, Japanese, Domestic conference

  Oral presentation


• ひずみゲージによるヘリカル流を利用した流速測定の試み

  KIKUCHI Yuuki, TAKEDA Minoru, MAEKAWA Kazuma, MATSUMOTO Shinji

  第88回（平成30年）マリンエンジニアリング学術講演会, Oct. 2018, Japanese, Domestic conference

  Oral presentation


• 横振動下における極低温液体の温度分布変化

  SO Shiyo, KITADA Kazuki, USUI Tomoyuki, TAKEDA Minoru, MAEKAWA Kazuma

  第96回2018年度春季低温工学・超電導学会, May 2018, Japanese, Domestic conference

  Oral presentation


• Sloshing measurements inside liquid hydrogen tank using superconducting MgB2 level sensors during marine transportation

  MAEKAWA KAZUMA, 鈴木 康平, 三宅 勇希, TAKEDA MINORU, 熊倉 浩明

  第95回 2017年度秋季低温工学・超電導学会, Nov. 2017, Japanese, 高知市文化プラザ かるぽーと, Domestic conference

  Oral presentation


• Measurements of Temperature and Pressure inside Liquid Hydrogen Vessel under Sloshing Conditions on Board of Training Ship “Fukae-Maru”

  TAKEDA MINORU, 三宅 勇希, 鈴木 康平, MAEKAWA KAZUMA, 熊倉 浩明

  平成29年日本船舶海洋工学会秋季講演会, Nov. 2017, Japanese, 広島国際会議場, Domestic conference

  Oral presentation


• 3D liquid level imaging inside liquid hydrogen vessel using five MgB2 level sensors on board of training ship “Fukae-Maru”

  鈴木 康平, MAEKAWA KAZUMA, 三宅 勇希, TAKEDA MINORU, 熊倉 浩明

  第95回 2017年度秋季低温工学・超電導学会, Nov. 2017, Japanese, 高知市文化プラザ かるぽーと, Domestic conference

  Oral presentation


• Electrolysis Characteristics and Electromagnetic Brake of Seawater MHD Power Generation Cell in High-Magnetic Field

  TAKEDA MINORU, 田中 荘一郎, 小川 朋洋, MAEKAWA KAZUMA, AOKI MAKOTO, 松本 真治

  平成29年日本船舶海洋工学会秋季講演会, Nov. 2017, Japanese, 広島国際会議場, Domestic conference

  Oral presentation


• Study on boiling behavior of pressurized liquid nitrogen under rapid depressurization

  臼井 智之, 宋 思遥, MAEKAWA KAZUMA, TAKEDA MINORU

  第95回 2017 年度秋季低温工学・超電導学会, Nov. 2017, Japanese, 高知市文化プラザ かるぽーと, Domestic conference

  Oral presentation


• Evaporation characteristics of cryogen under horizontal vibration –Making new type of thermometer-

  宋 思遥, 臼井 智之, MAEKAWA KAZUMA, TAKEDA MINORU

  第95回 2017年度秋季低温工学・超電導学会, Nov. 2017, Japanese, 高知市文化プラザ かるぽーと, Domestic conference

  Oral presentation


• Computational Study on Helical-Type Seawater MHD Power Generator for Enlargement

  TAKEDA MINORU, MAEKAWA KAZUMA, 小川 朋洋, 松本真治, 田中 荘一郎

  平成29年日本船舶海洋工学会秋季講演会, Nov. 2017, Japanese, 広島国際会議場, Domestic conference

  Oral presentation


• First experiment on liquid hydrogen transportation by ship inside Osaka bay

  Minoru Takeda, MAEKAWA KAZUMA, Takaaki Hamaura, Kohei Suzuki, Yuuki Miyake, Yu Matsuno, Shizuichi Fujikawa, Hiroaki Kumakura

  The 2017 Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC/ICMC 2017), Jul. 2017, English, Monona Terrace Community and Convention Center, International conference

  Poster presentation


• First experiment on liquid hydrogen transportation by training ship “Fukae-maru”.

  MAEKAWA KAZUMA, 濵浦 隆昌, 鈴木 康平, 三宅 勇希, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明

  第94回2017 年度春季低温工学・超電導学会, May 2017, Japanese, タワーホール船堀, Domestic conference

  Oral presentation


• Superheating of pressurized liquid nitrogen under rapid depressurized conditions

  田中 順也, TAKEDA MINORU, MAEKAWA KAZUMA

  第94回2017 年度春季低温工学・超電導学会, May 2017, Japanese, タワーホール船堀, Domestic conference

  Oral presentation


• Individual difference performance evaluation of external-heating-type MgB2 long level sensor for liquid hydrogen under horizontal vibration

  HAMAURA Takaaki, MAEKAWA Kazuma, SUZUKI Kohei, TAKEDA Minoru, MATSUNO Yu, FUJIKAWA Shizuichi, KUMAKURA Hiroaki

  1st Asian ICMC and CSSJ 50th Anniversary Conference, Nov. 2016, English, Kanazawa, Japan, International conference

  Poster presentation


• Hydraulic characteristics of helical-type seawater MHD power generator tested at ship model basin

  TAKEUCHI Atsushi, TANAKA Soichiro, OGAWA Tomohiro, MAEKAWA Kazuma, TAKEDA Minoru, MATSUMOTO Shinji

  1st Asian ICMC and CSSJ 50th Anniversary Conference, Nov. 2016, English, Kanazawa, Japan, International conference

  Poster presentation


• Heat transfer from external-heating-type MgB2 liquid hydrogen level sensor to gas hydrogen

  TAKEDA Minoru, YAMAZAKI Teruya, MAEKAWA Kazuma

  1st Asian ICMC and CSSJ 50th Anniversary Conference, Nov. 2016, English, Kanazawa, Japan, International conference

  [Invited]

  Invited oral presentation


• Dynamic Level-Detecting Characteristics of Superconducting MgB2 Level Sensor to Realize Liquid Hydrogen Carrier

  鈴木 康平, 濵浦 隆昌, MAEKAWA KAZUMA, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明

  第86回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


• Characteristics of external-heating-type MgB2 liquid hydrogen level sensor under horizontal vibration and its application to sloshing measurement

  Minoru Takeda, Takaaki Hamaura, Kohei Suzuki, Kazuma Maekawa, Yu Matsuno, Shizuichi Fujikawa, Hiroaki Kumakura

  2016 Applied Superconductivity Conference, Sep. 2016, English, Colorado Convention (Center Denver, Colorado), International conference

  Poster presentation


• Sloshing measurements of liquid hydrogen using external-heating-type MgB2 level sensor and high-speed microscope

  鈴木 康平, 濵浦 隆昌, MAEKAWA KAZUMA, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明

  第 92回2016 年度春季（学会50周年記念）低温工学・超電導学会, May 2016, Japanese, タワーホール船堀, Domestic conference

  Oral presentation


• Individual difference performance evaluation of external-heating-type MgB2 long level Sensor for liquid hydrogen

  濵浦 隆昌, MAEKAWA KAZUMA, 山﨑 瑛也, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明

  第92回2015 年度秋季低温工学・超電導学会, Dec. 2015, Japanese, 姫路商工会議所, Domestic conference

  Oral presentation


• Application of Superconducting MgB2 Level Sensor to Sloshing Measurements of Liquid Hydrogen

  濵浦 隆昌, MAEKAWA KAZUMA, 山﨑 瑛也, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明

  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


• Superconducting and level-detecting characteristics of MgB2 long level sensor for liquid hydrogen

  井上 雄貴, 山﨑 瑛也, MAEKAWA KAZUMA, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明

  第 91回2015年度春季低温工学・超電導学会, May 2015, Japanese, 産業技術総合研究所つくばセンター共用講堂, Domestic conference

  Oral presentation


• Superconducting characteristics of MgB2 short wires of long level sensor for liquid hydrogen

  井上 雄貴, 山﨑 瑛也, MAEKAWA KAZUMA, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明

  第 90回2014 年度秋季低温工学・超電導学会, Nov. 2014, Japanese, コラッセふくしま, Domestic conference

  Oral presentation


• Simulation of liquid level, temperature and pressure inside a 2000 liter liquid hydrogen tank during truck transportation

  Takeda Minoru, Nara Hiroyuki, Maekawa Kazuma, Fujikawa Shizuichi, Matsuno Yu, Kuroda Tsuneo, Kumakura Hiroaki

  25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference in 2014, ICEC 25-ICMC 2014, Jul. 2014, English, UNIVERSITY OF TWENTE. Enschede, the Netherlands, International conference

  Oral presentation


• Fundamental study of a liquid hydrogen tank for transportation using a MgB2 level sensor

  Maekawa Kazuma, Takeda Minoru, Matsuno Yu, Fujikawa Shizuichi, Kuroda Tsuneo, Kumakura Hiroaki

  25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference in 2014, ICEC 25-ICMC 2014, Jul. 2014, English, UNIVERSITY OF TWENTE. Enschede, the Netherlands, International conference

  Poster presentation


• Research on basic technology to realize cryogenic marine transportation of liquid hydrogen –Main focus on superconducting MgB2 liquid level sensor–

  安井 亮太, MAEKAWA KAZUMA, 井上 雄貴, TAKEDA MINORU, 松野 優, 藤川 静一, 黒田 恒生, 熊倉 浩明

  第 89回2014年度春季低温工学・超電導学会, May 2014, Japanese, タワーホール船堀, Domestic conference

  Oral presentation


• Measurement current dependence of level-detecting characteristics of MgB2 level sensor for liquid hydrogen under static condition

  安井 亮太, MAEKAWA KAZUMA, 井上 雄貴, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明, 黒田 恒生

  第61回応用物理学会春季学術講演会, Mar. 2014, Japanese, 青山学院大学相模原キャンパス, Domestic conference

  Oral presentation


• Temperature distribution of external-heating-type MgB2 level sensor for liquid hydrogen - Simulation analysis -

  MAEKAWA KAZUMA, 奈良 洋行, TAKEDA MINORU, 松野 優, 藤川 静一, 黒田 恒生, 熊倉 浩明

  第 87回2013 年度春季低温工学・超電導学会, May 2013, Japanese, タワーホール船堀, Domestic conference

  Oral presentation


• Simulation analysis of 2000 liter liquid hydrogen tank for transportation

  奈良 洋行, MAEKAWA KAZUMA, TAKEDA MINORU, 松野 優, 藤川 静一, 黒田 恒生, 熊倉 浩明

  第 87回2013 年度春季低温工学・超電導学会, May 2013, Japanese, タワーホール船堀, Domestic conference

  Oral presentation


• Fundamental study on sloshing of liquid hydrogen-Simulation analysis

  奈良 洋行, MAEKAWA KAZUMA, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明, 黒田 恒生

  第 86回2012 年度秋季低温工学・超電導学会, Nov. 2012, Japanese, いわて県民情報交流センター（アイーナ）, Domestic conference

  Oral presentation


• Transportation Test of 2000 Liter Liquid Hydrogen Tank by Truck Using MgB2 Level Sensor: Synchronous Measurements of Liquid Level, Temperature and Pressure inside Tank

  M. Takeda, S. Fujikawa, Y. Matsuno, K. Maekawa, T. Kuroda, H. Kumakura

  International Cryogenic Engineering Conference24 - International Cryogenic Materials Conference 2012 (ICEC 24-ICMC 2012), May 2012, English, 福岡国際会議場, International conference

  Oral presentation


• Thermal Response of MgB2 Level Sensor for Liquid Hydrogen Using External Heater

  K. Maekawa, M. Takeda, Y. Matsuno, S. Fujikawa, T. Kuroda, H. Kumakura

  International Cryogenic Engineering Conference24 - International Cryogenic Materials Conference 2012 (ICEC 24-ICMC 2012), May 2012, English, 福岡国際会議場, International conference

  Poster presentation


• Thermal response and level-detecting characteristics of MgB2 level sensor for liquid hydrogen using external heater

  MAEKAWA KAZUMA, 奈良 洋行, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明, 黒田 恒生

  第 85回2011 年度秋季低温工学・超電導学会, Nov. 2011, Japanese, 金沢歌劇座, Domestic conference

  Oral presentation


• Fundamental study on sloshing of liquid hydrogen

  TAKEDA MINORU, MAEKAWA KAZUMA, 奈良 洋行, 松野 優, 藤川 静一, 熊倉 浩明, 黒田 恒生

  第 85回2011 年度秋季低温工学・超電導学会, Nov. 2011, Japanese, 金沢歌劇座, Domestic conference

  Oral presentation


• Thermal response of MgB2 level sensor for liquid hydrogen using external heater (2) - Dependence on sensor-length -

  MAEKAWA KAZUMA, 奈良 洋行, TAKEDA MINORU, 松野 優, 藤川 静一, 熊倉 浩明, 黒田 恒生

  第 83 回2010年度秋季低温工学・超電導学会, Dec. 2010, Japanese, かごしま県民交流センター（鹿児島）, Domestic conference

  Oral presentation


• Thermal response of MgB2 level sensor for liquid hydrogen using external heater

  MAEKAWA KAZUMA, TAKEDA MINORU, 藤川 静一, 松野 優, 熊倉 浩明, 黒田 恒生

  第 82回2010 年度春季低温工学・超電導学会, May 2010, Japanese, 川崎市産業振興会館（川崎）, Domestic conference

  Oral presentation

• The Japan Institute of Marine Engineering


• Cryogenics and Superconductivity Society of Japan

• 大型FCV用液体水素貯蔵システム開発に向けた容器内液体水素挙動解明に関する研究開発

  武田 実, 前川一真

  NEDO, 燃料電池等利用の飛躍的拡大に向けた共通課題解決型産学官連携研究開発事業, 神戸大学, Sep. 2022 - Mar. 2024


• 急減圧時における舶用液体水素タンク内部の沸騰現象の解明

  前川 一真

  日本学術振興会, 科学研究費助成事業 若手研究, 若手研究, 神戸大学, 01 Apr. 2020 - 31 Mar. 2023

  本研究では、蓄圧状態で液体水素を海上輸送した際、真空断熱の破壊等により、タンク内圧が急激に昇圧し、安全弁・破裂板が作動した場合の、舶用液体水素タ ンク急減圧時におけるタンク内部の沸騰現象（気液相転移現象）について解明する。本年度では、主に以下の研究成果を得た。 1.液体水素による急減圧実験：本研究では、令和2年度に構築した液体水素タンク急減圧システムを用いて、液体水素の減圧時における初期条件(液体状態、初期充填率、減圧速度)を変化させ、初期条件の違いによる沸騰挙動を実験的に調べた。急減圧実験により、液体状態、初期充填率、減圧速度が液体水素の蒸発特性に与える影響を明らかにした。 2.数値解析ソフトを用いた急減圧時における液体水素タンク内部熱流体解析：本年度は、令和2年度に引き続き、STAR-CCM+を用いて、蒸発モデルの構築を行った。本年度では、令和2年度から構築を試みているSchrageの式による蒸発モデルの最適化を行った。液体水素実験で得られた液体水素タンク内の温度・圧力、蒸発ガス量をもとに、実験値の再現を試みた。Schrageの式中のアコモデーション係数をパラメータとして、最適な蒸発モデルの構築を試みた。


• Establishment of International Research Center for Liquid Hydrogen Marine Transportation

  TAKEDA Minoru

  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Fund for the Promotion of Joint International Research (Fostering Joint International Research (B)), Fund for the Promotion of Joint International Research (Fostering Joint International Research (B)), Kobe University, 07 Oct. 2019 - 31 Mar. 2022

  On the subject A of research on liquid hydrogen (LH2) production for marine transportation, gas hydrogen (GH2) evaporated from LH2 has been collected and preserved for a long time using vessels to clarify the time dependence of ortho-para (O-P) composition ratio for the evaporated gas. As an experimental result of para hydrogen concentration of the evaporated gas with an O-P analyzer, it becomes evident that the evaporated gas shows anomalous long P-O conversion. On the subject B of research on LH2 storage and transportation, the experiment of pressurized LH2 under depressurization has been done. Then we find that the gross evaporation and the boiling behavior can be highly influenced by the liquid condition. In addition, the accumulation experiment of GH2 evaporated from LH2 under horizontal vibration has been done. It is found that accumulation time increases with increasing the vibration time certainly; pressure increasing speed of GH2 can be suppressed by the horizontal vibration.


• 舶用液体水素タンク内部における熱流動現象の解明 -計測・数値解析-

  前川 一真

  学術研究助成基金助成金／若手研究(B), Apr. 2017 - Mar. 2020, Principal investigator

  Competitive research funding