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Investigation on the bundle effects of boiling heat transfer in tube bundle using nitrogen bubble simulation

✍ Scribed by M.H. Shi; X.Y. Zong; W.P. Yu

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
113 KB
Volume
7
Category
Article
ISSN
0894-1777

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✦ Synopsis

An experimental investigation to clarify the bubble flow and the effects of rising bubbles on boiling heat transfer in tube bundle was conducted by using nitrogen bubble simulation. The experimental results showed that the rising bubbles from the different parts of the lower tube surface have different flow characteristics and only a part of rising bubbles can impact and slide over the test tube and form a microlayer between a sliding bubble and boiling surface. The effects of sliding bubbles on enhancing heat transfer were evaluated at different heat fluxes.

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