R134a与R502用于冷藏车的比较研究  

Investigation of Cold Storage Truck With R134a and R502

作　　者：陈浩[1,2] 张华俊[1,2] 邹挺 董晓俊[1,2] 

机构地区：[1]西安交通大学制冷教研室 [2]深圳大冷王运输制冷有限公司

出　　处：《制冷学报》1999年第1期45-48,共4页Journal of Refrigeration

摘　　要：本文通过对Ｒ１３４ａ和Ｒ５０２理论循环性能对比，表明除Ｒ１３４ａ单位容积制冷量和单位容积压缩功小于Ｒ５０２外，二者ＣＯＰ和排气温度相差不大。从目前压缩机实际使用Ｒ１３４ａ的工作范围看，可以达到Ｒ５０２的工作温度范围，为冷藏车中采用Ｒ１３４ａ替代Ｒ５０２进行有益探索。In this paper,by contrast ideal cycle-performance of R134a with ideal cycle-performance of R502,it is indicated that values of per volume refrigerating capacity and per volume compressing work of R134a are far lower than it of R502,and values of cop and discharge temperature of R134a is close to it of R502. From using Compressor,working range of compressor with R134a can reach working range of compressor with R502.It is shown that R134a can replace R502 in refrigerating truck.

关 键 词：R134A R502 循环性能 工作范围 冷藏车 制冷剂 

分 类 号：TB612[一般工业技术—制冷工程] U469.66[机械工程—车辆工程]