HFO-1234yf在汽车空调系统中替代HFC-134a的仿真分析  

Simulation Analysis of HFO-1234yf replacing HFC-134a in Automobile Air Conditioning System

作　　者：瞿成 叶立[1] 陈宇 李慧丽 赵天玮 QU Cheng;YE Li;CHEN Yu;LI Hui-li;ZHAO Tian-wei(School of Energy&Power Engineering,University of Shanghai for Science&Technology,Shanghai 200093)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《广州化学》2020年第5期52-57,共6页Guangzhou Chemistry

摘　　要：为分析在汽车空调系统中使用HFO-1234yf替代HFC-134a的可行性,建立了电动汽车空调制冷系统一维仿真模型,将原HFC-134a系统优化为带回热管的HFO-1234yf系统,并在不同工况下对两种系统的制冷性能进行了对比分析。仿真结果表明:回热管可以使HFO-1234yf系统在制冷量和COP上分别提升10%和9.2%;在部分工况下,带有回热管的HFO-1234yf系统的制冷量和COP可与原HFC-134a系统持平;带有回热管的HFO-1234yf系统中蒸发器各部位的制冷剂均为两相态,有利于改善出风温度的均匀性,提升出风的舒适性。In order to analyze the feasibility of replacing HFC-134 a with HFO-1234 yf in automobile air conditioning system,one-dimensional simulation model of the electric vehicle air conditioning cooling system is established.The original HFC-134 a system is optimized as the HFO-1234 yf system with internal heat exchanger.The refrigeration performance of the two systems is compared and analyzed under different working conditions.The simulation results show that the internal heat exchanger can increase the cooling capacity and COP of HFO-1234 yf system by 10%and 9.2%respectively.In some cases,the cooling capacity and COP of HFO-1234 yf system with internal heat exchanger are the same as those of HFC-134 a system.The refrigerant in each part of the evaporator of HFO-1234 yf system with internal heat exchanger is in two-phase state,which is beneficial to improve the uniformity of air outlet temperature and the comfort of blowing.

关 键 词：汽车空调 仿真分析 回热管 HFC-134A HFO-1234YF 

分 类 号：TB611[一般工业技术—制冷工程]