Experimental assessment of entropy generation for pin fin heat sink

被引：3
|
作者：
Patil, Anil Kumar [1 ]
Kumar, Manoj [1 ]
机构：
[1] DIT Univ, Dept Mech Engn, Dehra Dun 248009, Uttarakhand, India
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2024年 / 149卷 / 01期
关键词：
Pin fin; Wings; Inline; Staggered; Entropy generation; PERFORMANCE; FLOW;
D O I：
10.1007/s10973-023-12671-7
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Channelization of energy improves the ability of a thermal management system. Pin fins are commercially used in various heat sink applications due to their optimum performance. The present study evaluates a pin fin heat sink (PFHS) using an entropy generation approach. Inline and staggered pin fins with wings are compared with the conventional pin fins for the pin-fin pitch ratio (PFPR) of 2-4 and the wing length ratio (WLR) of 0.2-0.6 in the Reynolds number range of 6800 to 15,100. The total entropy generation decreases with the increase in PFPR and the decrease in WLR. The minimum thermal and frictional entropy generation corresponds to the PFPR of 4 for both inline and staggered pin-fin arrangements. The maximum and minimum total entropy generation are found at the PFPR of 2 (for inline) and 4 (for staggered), respectively. The optimum value of total entropy generation is found for the PFPR of 4 and WLR of 0.2 in both arrangements (inline and staggered).
引用
收藏
页码：379 / 387
页数：9
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