基于“火积”的喷淋室内气-水热湿交换性能分析  

The performance analysis of spray chamber air-water heat exchange based on the entransy

作　　者：陈冬 鲍玲玲 CHEN Dong;BAO Lingling(College of Energy and environmental Engineering, Hebei University of Engineering, Handan, 056038,China)

机构地区：[1]河北工程大学能源与环境工程学院,河北邯郸056038

出　　处：《河北工程大学学报（自然科学版）》2017年第3期69-73,共5页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：国家自然科学基金资助项目(51408182)

摘　　要：为研究空气饱和程度对换热效果的影响,采用数值模拟方法,计算气体沿等温线、等焓线、等含湿量线向饱和线靠近的过程中全热交换量、"火积"耗散、"火积"耗散热阻、全热交换效率的变化情况。研究发现:气体沿着这三条线逐渐向饱和线靠近时其"火积"耗散热阻始终在减小,全热交换效率在增大。In order to investigate the influences of air saturability on the heat transfer effect,this paperuses the numerical simulation method to calculate the effect on total heat exchange,entransy dissipation,entransy dissipation thermal resistance and heat exchange efficiency when air changes delay isotherm,isenthalpic and isobume near the saturation line.It is found that when the gas changes along the threelines approach to the saturation line,the thermal dissipation of the entransy dissipation always decreases,and the total heat exchange efficiency increases.

关 键 词：“火积” 全热交换效率 等温线 等焓线 等含湿量线 

分 类 号：TK124[动力工程及工程热物理—工程热物理]