Experimental and numerical investigation on shell-and-tube exhaust gas recirculation cooler with different tube bundles

被引：16

作者：

Liu, Lin ^{[1
]}

Shen, Tong ^{[1
]}

Zhang, Lin ^{[1
]}

Peng, Hao ^{[2
]}

Zhang, Suolong ^{[1
]}

Xu, Weigang ^{[1
]}

Bo, Shi ^{[1
]}

Qu, Songzheng ^{[1
]}

Ni, Xiaomeng ^{[1
]}

机构：

[1] Changzhou Univ, Sch Mech Engn, Jiangsu Key Lab Green Proc Equipment, 1 Ge Hu Rd, Changzhou 213164, Peoples R China

[2] Nanjing Tech Univ, Jiangsu Key Lab Proc Enhancement & New Energy Equ, Sch Mech & Power Engn, 30 Pu Zhu South Rd, Nanjing 211816, Peoples R China

来源：

HEAT AND MASS TRANSFER | 2020年 / 56卷 / 02期

基金：

中国国家自然科学基金;

关键词：

HEAT-TRANSFER CHARACTERISTICS; INTERNALLY FINNED TUBE; TRANSFER PERFORMANCE; TURBULENT-FLOW; EXCHANGERS; FINS; OPTIMIZATION; HOLE;

D O I：

10.1007/s00231-019-02721-y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The heat transfer characteristics of shell-and-tube exhaust gas recirculation (EGR) coolers with different tube bundles were studied by experiment and numerical simulation. The overall heat transfer coefficient and shell-side pressure drop were determined. The influences of tube spacing, baffle form, baffle arrangement and number on the overall heat transfer coefficient and shell-side pressure drop were investigated. The maximum differences between the numerical and experimental results are approximately 4.1% for overall heat transfer coefficient and 3.3% for shell-side pressure drop, respectively. The results indicate that the overall heat transfer coefficient of EGR cooler with wave fin arrays internally finned tubes is 1.3~1.7 times than that of EGR cooler with longitudinal plate-rectangle internally finned tubes. And the comprehensive heat performance is more reasonable when tube spacing and baffle number are equal to 12 mm and 9, respectively. It is confirmed that the trisection ellipse helical baffle is superior to the segmental baffle, but the influence of improving overall thermal performance by setting baffles is limited for small EGR cooler.

引用

页码：601 / 615

页数：15

共 30 条

[1] Characteristics of forced convection heat transfer in vertical internally finned tube [J].