Heat Transfer Characteristics of Liquid Hydrogen as Coolant for Superconducting Apparatus

2010 Fiscal Year Final Research Report

• Project/Area Number: 20360127
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Kyoto University
• Principal Investigator: SHIRAI Yasuyuki Kyoto University, 大学院・エネルギー科学研究科, 教授 (60179033)
• Co-Investigator(Kenkyū-buntansha): SHIOTSU Masahiro 京都大学, 大学院・エネルギー科学研究科, 名誉教授 (20027139)
• Project Period (FY): 2008 – 2010
• Keywords: 液体水素 / 熱伝達 / 高温超電導 / 冷却特性 / サブクール

Research Abstract

The knowledge of forced flow heat transfer in liquid hydrogen is important for cooling design of large scale HTS superconducting magnets. An experimental system for thermal hydraulics of liquid hydrogen has been developed, designed and made in order to investigate the heat transfer characteristics for wide ranges of subcoolings, flow velocities, and pressures up to supercritical. The remote control systems and the interlock systems were also established for hydrogen safety. By use of the experimental set-up, steady state and transient heat transfer characteristics in pool cooling and forced flow cooling of liquid hydrogen were investigated experimentally. Additionally, cooling characteristics of High Tc wires, such as BSCCO and MgB2, immersed in liquid hydrogen were investigated.

Research Products

• [Journal Article] Forced Flow Boiling Heat Transfer of Liquid Hydrogen for Superconductor Cooling (2011)
  • Author(s): Y.Shirai, H.Tatsumoto, M.Shiotsu, K.Hata, H.Kobayashi, Y.Naruo, Y.Inatani, K.Kinoshita
  • Journal Title: Cryogenics Vol.51 Pages: 295-299
• [Journal Article] Boiling Heat transfer from a Horizontal Flat Plate in a Pool of Liquid Hydrogen (2010)
  • Author(s): Y.Shirai, H.Tatsumoto, M.Shiotsu, K.Hata, H.Kobayashi, Y.Naruo, Y.Inatani
  • Journal Title: Cryogenics Vol.50 Pages: 410-416
• [Journal Article] Preliminary Study on Heat Transfer Characteristics of Liquid Hydrogen for Coolant of HTC Superconductors (2010)
  • Author(s): Y.Shirai, H.Tatsumoto, K.Hata, M.Shiotsu, H.Kobayashi, Y.Naruo, Y.Inatani
  • Journal Title: Advances in Cryogenic Engineering Vol.55 Pages: 337-344
• [Journal Article] Development of a Thermal-hydraulics Experimental System for High Tc Superconductors Cooled by Liquid Hydrogen (2010)
  • Author(s): H.Tatsumoto, Y.Shirai, M.Shiotsu, K.Hata, H.Kobayashi, Y.Naruo, Y.Inatani, T.Kato, M.Futakawa, K.Kinoshita
  • Journal Title: 9th European Conference on Applied Superconductivity (EUCAS 09), J.Physics Conference Series(IOP Pub) 234 Pages: 032056
• [Journal Article] Forced Convection Heat Transfer of Subcooled Liquid Nitrogen in a Vertical Tube (2010)
  • Author(s): H.Tatsumoto, Y.Shirai, K.Hata, T.Kato, M.Futakawa, M.Shiotsu
  • Journal Title: 9th European Conference on Applied Superconductivity (EUCAS 09), J.Physics Conference Series(IOP Pub) 234 Pages: 032057
• [Journal Article] Numerical Analysis of Forced Convection Heat Transfer of Subcooled Liquid Nitrogen (2008)
  • Author(s): H.Tatsumoto, Y.Shirai, K.Hata, T.Kato, T.Aso, K.Ohtsu, M.Shiotsu
  • Journal Title: IEEE Transaction on Applied Superconductivity Vol.18, No.2 Pages: 1483-1486
• [Journal Article] Forced Convection Heat Transfer of Subcooled Liquid Nitrogen in Horizontal Tube (2008)
  • Author(s): H.Tatsumoto, Y.Shirai, K.Hata, T.Kato, M.Shiotsu
  • Journal Title: Advances in Cryogenic Engineering Vol.53 Pages: 665-672
• [Presentation] 液体水素のプール冷却における熱伝達-サブクールの影響 (2010)
  • Author(s): 塩津正博, 白井康之, 他
  • Organizer: 第82回2010年度春季低温工学・超電導学会講演概要集(p.141)
  • Year and Date: 20100000
• [Presentation] 液体水素強制対流定常熱伝達特性実験-第2報- (2010)
  • Author(s): 達本衡輝, 塩津正博, 白井康之, 他
  • Organizer: 第82回2010年度春季低温工学・超電導学会講演概要集(p.142)
  • Year and Date: 20100000
• [Presentation] 液体水素のプール冷却における過渡熱伝達特性 (2010)
  • Author(s): 塩津正博, 塩津正博, 白井康之, 他
  • Organizer: 第83回2010年度秋季低温工学・超電導学会講演概要集(p.63)
  • Year and Date: 20100000
• [Presentation] 垂直円管内超臨界水素の強制対流熱伝達 (2010)
  • Author(s): 達本衡輝, 塩津正博, 白井康之, 他
  • Organizer: 第83回2010年度秋季低温工学・超電導学会講演概要集(p.64)
  • Year and Date: 20100000
• [Presentation] 強制対流液体水素の飽和沸騰DNB熱流束表示式 (2010)
  • Author(s): 竹上泰樹, 塩津正博, 白井康之, 他
  • Organizer: 第83回2010年度秋季低温工学・超電導学会講演概要集(p.65)
  • Year and Date: 20100000
• [Presentation] 高温超電導材冷却を目的とした液体水素熱流動特性試験装置-概要 (2009)
  • Author(s): 白井康之, 他
  • Organizer: 第81回2009年度秋季低温工学・超電導学会講演概要集(p.64)
  • Year and Date: 20090000
• [Presentation] 高温超電導材冷却を目的とした液体水素熱流動特性試験装置-設計・試験方法 (2009)
  • Author(s): 達本衡輝, 白井康之, 他
  • Organizer: 第81回2009年度秋季低温工学・超電導学会講演概要集(p.65)
  • Year and Date: 20090000
• [Presentation] 液体水素のプール冷却における熱伝達 (2009)
  • Author(s): 吉川浩太朗, 白井康之, 他
  • Organizer: 第81回2009年度秋季低温工学・超電導学会講演概要集(p.66)
  • Year and Date: 20090000
• [Presentation] 液体水素の強制対流沸騰熱伝達 (2009)
  • Author(s): 塩津正博, 白井康之, 他
  • Organizer: 第81回2009年度秋季低温工学・超電導学会講演概要集(p.67)
  • Year and Date: 20090000
• [Presentation] Axial Temperature Distribution in a Heated Pipe Cooled by Forced flow of Liquid Hydrogen
  • Author(s): Y.Shirai, H.Tatsumoto, H.Kobayashi, K.Yoshikawa, M.Shiotsu, K.Hata, H.Kobayashi, Y.Naruo, Y.Inatani, K.Kinoshita
  • Organizer: Proc.of ICEC23-ICMC2010
  • Place of Presentation: pub.by Wroclaw Univ.of Technology(in press)
• [Presentation] Forced Convection Heat Transfer of Subcooled Liquid Hydrogen in a Small Tube
  • Author(s): H.Tatsumoto, Y.Shirai, T.Kato, M.Shiotsu, K.Hata, H.Kobayashi, Y.Naruo, Y.Inatani, K.Kinoshita
  • Organizer: Proc.of ICEC23-ICMC2010
  • Place of Presentation: pub.By Wroclaw Univ.of Technology(in press)