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Experimental investigation on thermo-hydraulic performance of triangular cross-corrugated flow passages
International Communications in Heat and Mass Transfer ( IF 7 ) Pub Date : 2021-02-04 , DOI: 10.1016/j.icheatmasstransfer.2021.105160
Easwaran N. Krishnan , Hadi Ramin , A. Guruabalan , Carey J. Simonson

Heat exchangers made of corrugated flow passages generally have better thermo-hydraulic performance compared to parallel flow passages. The corrugation angle (β), corrugation pattern, and the ratio of depth to pitch (hch/Pch) are critical geometrical parameters influencing the heat transfer and pressure drop in corrugated flow passages. This paper experimentally investigates heat transfer and pressure drop characteristics of triangular-shaped cross-corrugated flow passages for the range of 25° < β < 75° and 0.13 < hch/Pch < 0.36. Experiments are performed using representative compact heat exchangers in a small-scale test facility. This study also reports the effects of plate geometry on heat transfer and pressure drop and provides correlations for the average Nusselt number and friction factor. A detailed comparison of test data with relevant literature is also presented. Results of this study will be useful to manufactures and designers for developing high-performance heat exchangers.



中文翻译:

三角形交叉波纹流道热工水力性能的实验研究

与平行流动通道相比,由波纹状流动通道制成的热交换器通常具有更好的热工性能。波纹角(β),波纹图案以及深度与节距之比(h ch / P ch)是影响波纹流道中的传热和压降的关键几何参数。本文实验研究了在25°< β  <75°和0.13 <  h ch / P ch范围内的三角形交叉波纹流动通道的传热和压降特性  <0.36。实验是在小型测试设备中使用具有代表性的紧凑型热交换器进行的。该研究还报告了板几何形状对传热和压降的影响,并提供了平均努塞尔数和摩擦系数的相关性。还介绍了测试数据与相关文献的详细比较。这项研究的结果将对制造商和设计人员开发高性能热交换器有用。

更新日期:2021-02-04
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