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Forced liquid helium flow transient heat transfer in a narrow channel under step heat flux

✍ Scribed by I.L. Yarmak; V.M. Zhukov

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 803 KB
Volume: 32
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(92)90284-h

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✦ Synopsis

The paper presents experimental data on transient heat transfer in forced flow two-phase helium in a narrow vertical channel. Two principal mechanisms of heat transfer deterioration have been found. The first is due to increasing pressure reaching supercritical values. The second is the crisis when the liquid microlayer near the channel wall is evaporating completely. The influence of flow rate, quality and initial heating upon heat transfer and crisis have been studied and are discussed.

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