对流换热过程中的传递分析

Exergy Analysis of Convection Heat Transfer

基于热力学和基本概念和传热学基础理论 ,从传递的场理论出发 ,对于对流换热过程中的传递特性和规律进行了分析研究 ,推导和建立了常物性不可压缩层流中对流换热过程的传递微分方程 ;分别选取一维流动和二维流动的 2个简单对流换热例子进行传递函数的求解 ,其结果与热力学求解的结果完全相同 .

In this paper,based on the fundamental of thermodynamical exergy and anergy,from the field theory of exergy transfer,a study was made for the exergy transfer property and rule in the process of convection heat transfer,from which,the differential equation of exergy transfer was deduced and established in the process of convection under the conditions of constant thermal property,uncompressible laminar flow.Two typical examples of convection heat transfer were selected and solved for their exergy transfer respectively.The results well agreed with the published ones of some other researchers.