流体机械Issue(3):64-68,5.DOI:10.3969/j.issn.1005-0329.2015.03.013
制冷用水平管降膜蒸发器管束换热特性数值模拟
Numerical Simulation of the Heat Transfer Performance of Horizontal Falling Film Evaporator in the Large Refrigeration Systems
摘要
Abstract
A theoretical thermodynamic model with distributed parameters was developed for simulating the falling film heat transfer performance,and in this model the effect of film breakdown (or dry patch)is considered.In this simulation ,the distribu-tion of dry patch,average falling film factor is obtained,and the effect of the tube bundle layout,refrigerant mass flow rate,tube pitch,the flooded tube row amount is also analyzed.This study is a contribution for the design of horizontal falling film evaporators and promote their application in the field of refrigeration and air conditioning.关键词
降膜蒸发/数值模拟/分布参数法/管束换热特性Key words
falling film evaporator/numerical simulation/distributed parameter method/heat transfer performance of tube bun-dle分类
机械制造引用本文复制引用
杨培志,张营,李晓..制冷用水平管降膜蒸发器管束换热特性数值模拟[J].流体机械,2015,(3):64-68,5.基金项目
中南大学中央高校基本科研业务专项资金资助项目 ()