Performance Simulation of Condensing Heat Ezchanger in Different Work Conditions

摘要：

This article aims to provide a more accurate calculation method for design of condensing heat exchanger (CHX) through an in-depth discussion about work conditions of the CHX commonly used in temperature and humidity control system. With difference of the simplified configuration of CHX, a mathematical model is given. Specifically, the Log-mean temperature difference (LMTD) method is used in dry conditions, while in wet conditions mass and energy conservation equations are used. The set of equations of the model are solved by using the shooting method provided by Matlab/Simulink program. The results of work conditions and the performances of heat transfer and dehumidification of CHX are determined. Analysis shows that the simulation model can evaluate performances of the CHX in different work conditions reasonably and the results are close to the physical phenomenon. The method raised in this paper is valuable for design and optimization of CHX.

关键词： Condensing heat ezchanger Temperature and humidity control system Simulation Matlab/Simulink Environmental control system

作者: Jing Wang Weixing Yuan Xiugan Yuan

作者单位: Dept.of Man-Machine-Environmental Engineering,Beihang University,Beijing,China

会议类型: 国际会议

会议名称: The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)

会议地点: 南京

会议语种:英文

页码: 708-715

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）