化工学报2019，Vol.70Issue(6)：2075-2082,8.DOI:10.11949/j.issn.0438-1157.20181528
R32热力学性质计算模型及其分析
Calculation model and analysis of thermodynamic properties of R32 refrigerant
摘要
Abstract
The calculation model of the saturated vapor pressure and liquid density of R32 refrigerant in the saturation line (-130—78°C, 0.00013—5.76 MPa) is proposed. Based on this, the calculation model of latent heat of evaporation is derived. The state equation for P-v-T relationship in saturated line and superheated zone was established. Based on above model, the calculation models of enthalpy, entropy and specific heat capacity in saturated line and superheated region are obtained. The average relative errors of correlation models are less than 0.16% and maximum relative errors don’t exceed 3.7% compared with data from REFPROP 9.0. The deviation of state equation is less than 8.7% compared with published equation and data. The average errors of enthalpy, entropy and specific heat capacity models derived from state equation and thermodynamic relation are less than 5.2%, and maximum relative errors of all calculation models are less than 9.1%.关键词
热力学性质/焓/熵/状态方程/R32制冷剂/模型Key words
thermal performance/enthalpy/entropy/state equation/R32 refrigerant/model分类
能源科技引用本文复制引用
邱琳祯,谷波,缪梦华..R32热力学性质计算模型及其分析[J].化工学报,2019,70(6):2075-2082,8.基金项目
国家自然科学基金项目(21878056,31560241,21566002) （21878056,31560241,21566002）
广西石化资源加工及过程强化技术重点实验室课题基金项目(2016Z002) （2016Z002）
