Effects of fin pitch and tube diameter on the air-side performance of tube bank fin heat exchanger with the fins punched plane and curved rectangular vortex generators

被引：16

作者：

Tian, Xing-Lu ^{[1
,2
]}

Jin, Hua ^{[1
,2
]}

Song, Ke-Wei ^{[1
,2
]}

Wang, Liang-Chen ^{[1
,3
]}

Liu, Song ^{[1
,2
]}

Wang, Liang-Bi ^{[1
,2
]}

机构：

[1] Lanzhou Jiaotong Univ, Sch Mech Engn, Lanzhou, Gansu, Peoples R China

[2] Lanzhou Jiaotong Univ, Key Lab Railway Vehicle Thermal Engn MOE, Lanzhou, Gansu, Peoples R China

[3] Lanzhou Jiaotong Univ, Sch Chem & Chem Engn Sci, Lanzhou, Gansu, Peoples R China

来源：

EXPERIMENTAL HEAT TRANSFER | 2018年 / 31卷 / 04期

基金：

中国国家自然科学基金;

关键词：

fin pitch; tube diameter; plane vortex generator; curved vortex generator; heat transfer performance; PLATE-FIN; FRICTION CHARACTERISTICS; TRANSFER ENHANCEMENT; CHANNEL; R-134A; FLOW;

D O I：

10.1080/08916152.2017.1410503

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Tube bank fin heat exchangers with vortex generators are widely used in the field of industrial applications. The effects of the fin pitch and the tube diameter on the air-side performance of the tube bank fin heat exchanger with plane rectangular vortex generators (PRVG) and curved rectangular vortex generators (CRVG) are experimentally studied in this paper. Performance comparison is carried out between the fins with PRVG and CRVG. The experimental results show that both PRVG and CRVG can effectively enhance heat transfer performance compared with the plain fin. Both the fin pitch and the tube diameter have obvious effect on f compared with the effect on Nu, especially for the fin with PRVG. The characteristics of Nu, f, and Nu/f(1/3) are different for the fins with PRVG and CRVG. The fin with CRVG has a better heat transfer performance than the fin with PRVG for all the cases studied in this paper.

引用

页码：297 / 316

页数：20

共 29 条

[1] HEAT-TRANSFER ENHANCEMENT IN FIN-TUBE HEAT-EXCHANGERS BY WINGLET TYPE VORTEX GENERATORS [J].