在采用平行流冷凝器的冷藏车中应用新型制冷剂的模拟分析比较  

THE SIMULATION ANALYSIS OF NEW TYPE OF REFRIGERANTS APPLYING IN REFRIGERATOR CARS EQUIPPED WITH PARALLEL-FLOW TYPE CONDENSERS

作　　者：包涛[1] 黄东[1] 董玉军[1] 袁秀玲[1] 汪开军 董晓俊 

机构地区：[1]西安交通大学制冷与低温工程系,西安710049 [2]大冷王运输制冷有限公司亚洲技术中心,深圳518040

出　　处：《低温工程》2004年第6期52-55,共4页Cryogenics

摘　　要：运用分布参数法 ,对目前正广泛使用的环保制冷剂R134a和新型中低温用混合制冷剂R4 0 4A在平行流冷凝器内的换热和流动情况进行了模拟分析和比较 ,结果表明在采用平行流冷凝器的冷藏车运行工况范围内 ,R4 0 4A的传热和流动性能优于R134a ,是一种有广阔应用前景的新型中低温混合制冷工质。Using the distributing parameter method,the simulation analysis of the heat transfer and the flow characteristics of the new refrigerants R134a and R404A was carried out.The results show that under the operating considerations of the refrigerator cars, R404A had better performance than R134a in the heat transfer and the flow characteristics. R404A is one of the most promising refrigerant substitutes as the new refrigerant mixtures using in the middle and low temperatures.

关 键 词：混合制冷剂 混合制冷工质 R134A 分布参数法 冷凝器 环保制冷剂 平行 新型 中低温 流动性能 

分 类 号：V231[航空宇航科学与技术—航空宇航推进理论与工程] TB64[一般工业技术—制冷工程]