AN EQUATION OF STATE FOR FLUOROETHANE (R161)
Fluoroethane (R161, C2H5F, 353-36-6) is a potential alternative refrigerant with excellent cycle performance, and it has zero ozone-depletion potential (ODP) and low global warming potential (GWP). In this work, the thermodynamic property formulations for fluoroethane have been developed with the use of available experimental thermodynamic property data. In determining the equation of state, multi-property fitting methods were used including single-phase pressure-volume-temperature (pvT), vapor pressure, and saturated liquid density data. The equation of state has been developed to conform to the Maxwell criterion for two-phase liquid-vapor equilibrium states, and is valid for temperatures from 130 K to 450 K, and pressures to 5 MPa. The extrapolation behavior of the equation of state at high temperatures and high pressures is reasonable. As there are very few compressed liquid density experimental data published, the uncertainties in density of the equation of state are estimated to be 1.0％ in the compressed liquid region, and 0.5％ in the gas region and the supercritical region. Uncertainties in vapor pressure are 0.5％ above 200 K and increase at lower temperature. The uncertainties for all properties are higher in the critical region except vapor pressure. Detailed comparisons between experimental and calculated data have been performed in this work.
Jiangtao Wu Yong Zhou
State Key Laboratory of Multiphase Flow in Power Engineering Xian Jiaotong University Xian, China, 710049
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
626-632
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）