| 摘要: |
| 为了获得混合制冷剂R134a/R290的热物性数据，搭建了高精度PVTx实验系统。以Burnett法为基础，测定了R134a/R290质量分数为50%/50%、55%/45%和60%/40%在温度为252K-320K的PVT性质，并且拟合了三种不同配比的混合工质的气态维里方程。实验数据与方程的平均误差为1%左右，具有较好的重合度。 |
| 关键词: R134a/R290 PVTx 维里方程 |
| DOI： |
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| 基金项目: |
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| The Experimental Study of PVTx Properties of Near Aeotropic Mixture Refrigerant R290/R134a |
| Yang Xi,Qi Yingxia,Chen Wei,Zhang Hua |
| (University of Shanghai for Science and Technology) |
| Abstract: |
| In order to get the thermophysical properties of mixed refrigerants R134a/R290, the author built PVTx experimental system with high accuracy. Based on the Burnett method, the author measured the PVT properties of R134a/R290 with mass fraction 50%/50%, 55%/45%, 60%/40% in the range of 252K-320K, and fitted the gas virial equation of these mixed refrigerants. The average error between experimental data and equation is about 1%.It turned out that the experimental data agreed with the equations highly. |
| Key words: R134a/R290 PVTx virial equation |
