R1234yf/R32混合工质气相PρTx性质的实验研究  

Experimental study on gas phase PρTx properties of R1234yf/R32 mixture

作　　者：贾磊 赵盼盼 宋有强 孙云 贾甲 周到 袁旭东 Jia Lei;Zhao Panpan;Song Youqiang;Sun Yun;Jia Jia;Zhou Dao;Yuan Xudong(State Key Laboratory of Compressor Technology,Anhui Province Key Laboratory of Compressor Technology,Hefei General Machinery Research Institute Co.,Ltd.,Hefei 230031,China;Hefei General Environment Control Technology Co.,Ltd.,Hefei 230601,China)

机构地区：[1]合肥通用机械研究院有限公司压缩机技术国家重点实验室压缩机技术安徽省实验室,合肥230031 [2]合肥通用环境控制技术有限责任公司,合肥230601

出　　处：《低温与超导》2021年第9期72-76,81,共6页Cryogenics and Superconductivity

基　　金：安徽省重点研究与开发计划项目(202004a07020017)资助。

摘　　要：R1234yf/R32混合工质是一种新型环保制冷剂。利用基于磁悬浮密度计的高精度流体热物性测量系统,实验测定了R1234yf/R32混合工质(质量分数为46.3%/53.7%)在303~333 K、0.15~2.35 MPa范围内气相区的45组PρTx数据,拟合了该混合工质的高精度截断型维里方程,密度计算值与实验值的相对偏差绝大多数在±2.0%以内。研究结果可为该类工质的应用提供必要的基础数据。R1234yf/R32 mixture is a new environment-friendly refrigerant.Using the high precision fluid thermalphysical property measurement system based on magnetic suspension densitometer,and under the temperatures of 303 to 333 K and the pressures of 0.15 to 2.35 MPa,45 sets gas phase PρTx properties of R1234yf/R32 mixture with mass fraction of 46.3%/53.7%were measured.High precision truncated virial equation of the mixture was fitted,and most of the relative deviations between the calculated values and the measured values were within±2.0%.The results can provide necessary basic data for the application of R1234yf/R32 mixture.

关 键 词：混合工质 R1234yf/R32 PρTx热物性数据 维里方程 

分 类 号：TB612[一般工业技术—制冷工程]