摘要
对热泵低温蒸发海水淡化中的传热与海水淡化性能进行了理论分析。建立了热泵低温蒸发海水淡化系统的传热和热力学模型。编制计算机程序,分析了蒸发压力对系统性能的影响。计算结果表明,蒸发压力的提升,对系统的性能有利有弊:蒸发压力的提升,换热管的换热增强,淡水能耗降低,系统产水效率提高;但所需换热面积增加并且单位换热面积的产水效率降低。
The investigation on the thermal and desalination performance of low temperature evaporation heat pump was carried out in this paper. heat transfer and thermodynamics model of heat pump low temperature evaporation desalination system were built. Compiled computer program and the effect of evaporation pressure on system performance were analyzed. The results show that the ascension of evaporating pressure cut both ways： the ascension of evaporating pressure enhance heat transfer, reduces the energy consumption and improves the efficiency of water production, but need to increase heat exchange area as well as the efficiency of unit heat exchange area of water production reduce.
出处
《科技通报》
北大核心
2015年第4期218-221,共4页
Bulletin of Science and Technology
关键词
热泵
海水淡化
蒸发压力
性能
heat pump
seawater desalination
evaporation pressure
performance
