HFC32+HFC227ea/DMF吸收式制冷循环热力性能分析  

CALCULATION OF HFC32+HFC227ea/DMF ABSORPTION REFRIGERATION CYCLE

作　　者：高婉丽[1] 赵小明[1] 刘志刚[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《工程热物理学报》2010年第4期545-548,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助(No.50776072)

摘　　要：综合考虑工质热力学性质及环境友好性等多方面因素,提出将非共沸混和制冷剂HFC32+HFC227ea替代HCFC22用于吸收式制冷系统。用UNIEAC模型确定组分活度系数,在质量守恒、能量守恒及相平衡原理基础上,对HFC32+HFC227ea/DMF新型吸收式制冷循环性能随工况的变化进行了理论分析,并与HCFC22/DMF循环进行比对。结果表明,当HFC32和HFC227ea以适当比例混合用于吸收式制冷循环时,完全能达到HCFC22所能达到的性能。This paper intended to use HFC32＋HFC227ea as refrigerant to alternate HCFC22 in a absorption refrigeration system,on the comprehensive consideration of thermodynamics properties, as well as environment-friendly factors.UNIFAC model was used to predict activity coefficients of ternary mixture HFC32/HFC227ea/DMF.The theoretical thermodynamic analysis of HCFC22/DMF and HFC32＋HFC227ea/DMF were made.The result shows that HFC32＋HFC227ea is a more possible alternative for HCFC22.

关 键 词：吸收式制冷 制冷剂 吸收剂 

分 类 号：TK12[动力工程及工程热物理—工程热物理]