Characteristics and enhancement of heat transfer from heat-generating blocks mounted on back wall of a 3D cabinet to an ambient natural convective air stream

被引：8
作者：
Cheng, Jen-Chieh [1 ]
Tsay, Yeong-Ley [1 ]
Yang, Chih-Ho [1 ]
机构：
[1] Natl Formosa Univ, Dept Aeronaut Engn, 64 Wun Hua Rd, Huwei 63208, Yunlin, Taiwan
来源：
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2018年 / 74卷 / 09期
关键词：
Heat-generating blocks; 3D cabinet; Circular air vent; Round fin; Heat transfer enhancement; SQUARE ENCLOSURE; NUMERICAL-ANALYSIS; CAVITY; LAMINAR; SUBSTRATE; ARRAY;
D O I：
10.1080/10407782.2018.1525159
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this study, the physical system under consideration is a three-dimensional (3D) cabinet with arrays of heat-generating blocks mounted on inner surface of back wall of the cabinet. The heat-generating blocks dissipate heat to the surrounding of cabinet through conjugate conduction and natural convection. Efforts are performed to investigate the cooling performance enhancement of the blocks by constructing circular air vents in walls and installing round fins onto back wall of the cabinet. Results show that the air vents and fins can significantly reduce the hot spot temperature of heat-generating blocks, and improve temperature uniformity of the blocks. The maximum reduction in hot spot temperature can be up to 26.2% for cases under investigation in this study.
引用
收藏
页码：1503 / 1519
页数：17
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