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Title of Journal: Heat Mass Transfer

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Abbravation: Heat and Mass Transfer

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Springer Berlin Heidelberg

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DOI

10.1007/s00262-015-1782-5

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ISSN

1432-1181

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Investigations on the heat transfer performance of

Authors: Xiaowu Wang Zhenping Wan Yong Tang
Publish Date: 2014/03/23
Volume: 50, Issue: 9, Pages: 1187-1194
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Abstract

The third generation enhanced heat transfer technologies such as threedimensional fin and dimple are still important means of improving energy efficiency and will continue to be challenging issues This paper concentrates on the analysis of the condensation heat transfer performance of an edgeshaped finnedtube fabricated by extrusion–ploughing process Experimental results show that the overall heat transfer coefficient increases with increases of volumetric flow rate of cold water and heat flux whereas the shell side heat transfer coefficient decreases with volumetric flow rate and heat flux increasing At the similar volumetric flow rate the shell side heat transfer coefficient of the edgeshaped finnedtube is 4–6 times larger than that of the smooth tube At the similar volumetric flow rate the shell side heat transfer coefficient of edgeshaped finnedtube increases with ploughing depth increasing At the same temperature difference between wall and vapor the shell side heat transfer coefficient is also higher than what had been reported in the literature

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