摘要
引言 HCFC22/HFC152a是近年越来越受到重视的一种近共沸混合工质。采用该混合工质作为制冷剂以替代现用的CFC12具有许多优点:首先从保护臭氧层、减少温室效应的角度看,这种混合物对大气臭氧层破坏势(ODP值)和温室效应(GHP值)均比较小;第二。
HCFC22/HFC152a is a near-azeotropic refrigerant mixtures. It is suggested as an short lerm alternative refrigerant for CFC12, due to its ozone depletion potential (ODP) and global warming potential (GWP) is relatively small and thermodynamic properties close to that of CFC12 on certain compositions. Using constant volume method, 124 PVTx data for these mixtures along 11 ischoric lines at the range of temperatures from 302K-404K, pressures from 0.958MPa-5.96MPa, densities from 38.08kg/m3-736.3kg/m3 and the compositions from 10 wt%-20wt% of HCFC22 were measured. The data reported in this paper can be used as the base data for calculating the thermodynamic properties of HCFC22/HFC152a.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1993年第1期1-4,共4页
Journal of Engineering Thermophysics
基金
国家科委基金
