Title

Effects of channel height on flow boiling of liquid nitrogen

Abstract

The effects of flow channel height on the flow boiling heat transfer of liquid nitrogen was examined from small, discrete heat sources that simulate electronic chips. The channel height had little effect on the critical heat flux (CHF) until the channel height was reduced to approximately 1.6 mm, whereby the CHF and the heat transfer coefficient decreased significantly. There was no significant difference between the heat transfer conditions in flow channel heights of 6.35 mm and 3.18 mm, indicating that the distance between the multi-layer-stacked electronic boards should be larger than the critical height to obtain optimum cooling results. A model to describe the heat transfer mechanism near CHF was developed.

Publication Date

12-1-1998

Publication Title

American Society of Mechanical Engineers, Advanced Energy Systems Division (Publication) AES

Volume

38

Number of Pages

495-503

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0032315713 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0032315713

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