Forced convection heat transfer of subcooled liquid hydrogen in a small tube

Tatsumoto, Hideki; Shirai, Yasuyuki*; Shiotsu, Masahiro*; Hata, Koichi*; Kobayashi, Hiroaki*; Naruo, Yoshihiro*; Inatani, Yoshifumi*; Kato, Takashi; Futakawa, Masatoshi ; Kinoshita, Katsuhiro*

Forced flow heat transfers of liquid hydrogen through a vertical tube with the diameter, d, of 3.0 mm were measured at the pressure of 0.7 MPa for various inlet temperatures and flow velocities. The non-boiling heat transfer coefficients agreed with those by the Dittus-Boelter correlation. The heat fluxes at the inception of boiling and the departure from nucleate boiling (DNB) heat fluxes were higher for higher flow velocity and subcooling. The DNB heat fluxes were higher for larger diameter, compared with those for = 6.0 mm. The effect of tube diameter and subcooling on the DNB heat flux was clarified.

Language	:	English
Journal	:	Proceedings of International Cryogenic Engineering Conference 23 (ICEC-23) and International Cryogenic Materials Conference 2010 (ICMC 2010)
Volume	:
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Pages	:	p.491 - 496
Publication Year/Month	:	2010/07
Meeting title	:	International Cryogenic Engineering Conference 23 (ICEC-23) and International Cryogenic Materials Conference 2010 (ICMC 2010)
Held date	:	2010/07
Location (city)	:	Wrocaw
Location (country)	:	Poland
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Keywords	:	no keyword
Research Facility	:	J-PARC物質・生命科学実験施設
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Article of JAEA R&D Review	:
Cooperating Institute	:	京都大学

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Registration No. : BB20101403
JAEA Abstracts No. :
Paper Submission No. : 12773

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