摘要
采用试差法,参考换热器传热系数的大致范围,假设一个传热系数值,利用热量衡算和传热速率方程估算传热面积,初选换热器型号,最后校核传热系数和传热面积。
The trial and error method is applied to have a reference for the approximate scope of heat exchanger＇s transfer coefficient,propose a value of heat transfer coefficient,estimate heat transfer area with heat balance and heat transfer rate equation,and select the type of heat exchanger,through which,heat transfer coefficient and heat transfer area are checked.
关键词
试差法
换热器
传热系数
选型
传热速率方程
传热面积
trial and error method
heat exchanger
heat transfer coefficient
selection
heat transfer rate equation
