文献类型：期刊文献

英文题名：Performance study of finned tube evaporative air cooler based on experiment and numerical simulation

作者：Zhang, Qing[1];Wang, Xuesheng[1];Ruan, Weicheng[1];Chen, Qinzhu[1];Liu, Zilong[1]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China

年份：2018

卷号：74

期号：4

起止页码：1154

外文期刊名：NUMERICAL HEAT TRANSFER PART A-APPLICATIONS

收录：;EI(收录号：20184305980984);WOS:【SCI-EXPANDED(收录号:WOS:000450448800003)】；

语种：英文

外文关键词：Tubes (components) - Fins (heat exchange) - Numerical models

摘要：The influence of air speed, spray density and tube bundle on wet air cooling of the fins are analyzed through numerical solution. The spray water droplets are released from the surface injection source in the discrete phase model (DPM). And the water film is formed in three-dimensional fins using Eulerian wall film model (EWF). The species transport model is coupled with EWF model to solve the phase transition and heat exchange. The heat exchange and pressure loss of tube bundle are evaluated through field synergy principle and Fanning friction factor, and a comprehensive performance factor and mass transfer coefficient of 57mm fins are higher than that of other two fins under varied air flow rate and spray density. Besides, The increase in tube rows number weakens the mass exchange of unit area. When the Re exceeds 2,820, the comprehensive performance of finned tube bundle with more rows become worse.