ABSTRACT

In order to have a heat transfer per volume, heat exchangers have to have high overall heat coefficient. The effects of a transverse wedge on the heat transfer, the pressure drop, and the thermal efficiency factor (TEF) of air flow through a tube bundle heat exchanger was investigated. TEF increases continuously with the wedge aspect ratio (α). Form α = 0.275, 0.550, 0.758 to 1, TEF increases continuously from 1.157 to 1.84, 1.11 to 1.72, 1.05 to 1.42, and 1.02 to 1.39 for x/L = 1/3, 2/3, 1, and 0, respectively.

中文翻译：

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三角形横截面横楔对直列管束换热器性能的影响

摘要

为了实现单位体积的热传递，换热器必须具有高总热系数。研究了横向楔对通过管束换热器的空气流的传热、压降和热效率系数 (TEF) 的影响。TEF 随着楔形纵横比 (α) 的增加而不断增加。形式 α = 0.275、0.550、0.758 到 1，对于 x/L = 1/3、2/3、1 和 0，TEF 分别从 1.157 到 1.84、1.11 到 1.72、1.05 到 1.42 和 1.02 到 1.39 连续增加.