基于场协同理论的板式换热器性能优化数值研究  

Numerical Analysis of Performance Optimization of Plate Heat Exchanger Based on Field Synergy Principle

作　　者：张毅[1] 董鹏飞[1] 孙晓燕 张仲彬[1] 

机构地区：[1]东北电力大学经济管理学院 [2]吉林七星节能环保有限公司

出　　处：《化工机械》2013年第4期487-491,共5页Chemical Engineering & Machinery

基　　金：国家自然科学基金项目(51076025)

摘　　要：建立了与实物尺寸相同的人字形板式换热器冷热双流道模型,运用数值模拟方法和三场协同原理,对板式换热器单边流动和对角流动时的流动与换热特性进行了分析。结果表明:在相同的流速下,单边流动的速度场和温度场的协同性及速度场和压力场的协同性较好,改善了流道内各场的协同关系,因而单边流动换热效果要优于对角流动,且压降低于对角流动。A V-shaped and full-sized model with cold and hot flow channels for the plate heat exchanger was established ; and both fluidity and heat transfer characteristics of the plate heat exchanger for a single-side and diagonal flow were investigated basing on numerical simulation and more-fields synergy theory. The results show that, with the same velocity, the single-side flow＇ s synergy of veloeity and temperature fields and that of veloeity and pressure fields outperform that of diagonal flow＇ s, and their pressure drop stays lower than that of the diagonal flow＇ s.

关 键 词：板式换热器 单边流动 对角流动 数值模拟 三场协同 

分 类 号：TQ051.5[化学工程]