闭式热泵干燥系统制冷剂应用性能分析  

Application performance analysis of refrigerant in closed heat pump drying system

作　　者：刘兆伟 明月 Liu Zhaowei;Ming Yue(Hunan Labor And Human Resources Vocation College)

机构地区：[1]湖南劳动人事职业学院

出　　处：《制冷与空调》2024年第9期54-60,共7页Refrigeration and Air-Conditioning

基　　金：湖南劳动人事职业学院2022年院级课题“闭式热泵干燥系统的工质应用对比研究”(XRZYYK2022B12)。

摘　　要：对两种不同的闭式热泵干燥系统分别在以R22、R134a、R245fa、R1224yd(Z)、R1234ze(E)为制冷剂进行系统性能分析,通过EES软件分析冷凝温度、蒸发温度、旁通率、干燥室空气入口温度、干燥室空气入口相对湿度对两种系统除湿能耗量(SMER)、性能系数(COP值)的影响变化规律得到两种系统均在采用工质R245fa时,其性能最好;系统采用带补气能提升系统性能。The system performance of two different closed heat pump drying systems using R22,R134a,R245fa,R1224yd(Z),R1234ze(E)as refrigerants is analyzed.By analyzing the influence of condensation temperature,evaporation temperature,by-pass rate,drying chamber air inlet temperature,drying chamber air inlet relative humidity on dehumidification energy consumption(SMER)and performance coefficient(COP)of the two systems by using EES software,it is concluded that the two systems have the best performance when using working medium R245fa.The performance of the system can be increased by using belt replenishment gas.

关 键 词：封闭式热泵干燥系统 制冷工质 系统性能参数 除湿能耗量 

分 类 号：TB6[一般工业技术—制冷工程]