Effect of a heated pipe length on DNB heat flux in forced flow of liquid hydrogen

Tatsumoto, Hideki; Shirai, Yasuyuki*; Shiotsu, Masahiro*; Hata, Koichi*; Naruo, Yoshihiro*; Kobayashi, Hiroaki*; Inatani, Yoshifumi*; Narita, Norihiko*

The heat transfer in a forced flow of saturated liquid hydrogen was measured using vertically-mounted heated pipes with an inner diameter d of 6.0 mm and lengths L of 50, 100, 200 and 250 mm for wide ranges of flow velocity and pressure. The heat fluxes at departure from nucleate boiling were higher for higher flow velocities, lower pressures and shorter L. The effect of L on the DNB heat flux was clarified and could be described by the modified authors' DNB correlation.

Language	:	English
Journal	:	Proceedings of 24th International Cryogenic Engineering Conference (ICEC 24) and International Cryogenic Materials Conference 2012 (ICMC 2012) (CD-ROM)
Volume	:
Number	:
Pages	:	p.157 - 160
Publication Year/Month	:	2012/05
Meeting title	:	24th International Cryogenic Engineering Conference (ICEC-24) and International Cryogenic Material Conference 2012 (ICMC 2012)
Held date	:	2012/05
Location (city)	:	Fukuoka
Location (country)	:	Japan
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Keywords	:	no keyword
Research Facility	:	J-PARC物質・生命科学実験施設
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	科学技術振興機構

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Registration No. : BB20120316
JAEA Abstracts No. :
Paper Submission No. : 14618

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