制冷剂R1234yf水合物的试验研究  

Experimental Study of R1234yf Refrigerant Hydrate

作　　者：郭志旺[1] 王彬[1] 祁影霞[1] GUO Zhi- wang WANG Bin QI Ying-xia(University of Shanghai for Science and Technology, Shanghai 200093 , Chin)

机构地区：[1]上海理工大学,上海200093

出　　处：《流体机械》2017年第4期58-62,共5页Fluid Machinery

摘　　要：蓄冷技术是为了面对能源紧张匮乏的形势而兴起的一门新型节能优化技术。由于环保等一系列原因,研究新型蓄冷工质尤为重要,新一代制冷剂R1234yf因其环保特性及良好的系统性能而受到广泛关注。本文采用图像法在反应釜内通过控制反应体系温度对R1234yf水合物进行了相平衡测试,并与R134a水合物的蓄冷特性进行比较分析。结果表明:R1234yf比R134a的蓄冷速率快、诱导时间短、蓄冷特性强;设定温度在5~10℃范围内,R1234yf水合物的相变压力略高于R134a水合物的相变压力;R1234yf水合物生成驱动力的绝对值随反应体系压力升高和温度降低而增大。Cold storage technology is a new energy saving optimization technology to prevent the situation of energy shortage. Because of the environmental protection,it is particularly important to study the new type of cold storage working fluid. As a new generation of refrigerant,R1234 yf possess its environmental protection characteristics andperfect system performance,which receive much concern. Therefore,according to the image method,this paper,comparing R1234 yf gas hydrate with R134 a gas hydrate aboutcooling storage characteristics,shows the R1234 yf hydrate phase equilibrium by controlling the reaction temperature. The results show that the R1234 yf hydrate cooling storage rate and cooling storage characteristics is faster and stronger than R134 a hydrate. At the temperature range of 5 ~ 10 ℃,the phase equilibrium pressure of R1234 yf hydrate is higher than R134 a hydrate.With the higher reaction pressure and the lower reaction temperature,the driving force of R1234 yf hydrate is increasing.

关 键 词：蓄冷技术 新型蓄冷工质 R1234yf水合物 蓄冷特性 生成驱动力 

分 类 号：TH138[机械工程—机械制造及自动化] TB65[一般工业技术—制冷工程]