화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.18, No.2, 617-622, March, 2012
DOI10.1016/j.jiec.2011.11.073  Export Citation
Cooling domain prediction of HFCs and HCFCs refrigerant with Joule-Thomson coefficient
Kyong Ho Han, Su Pin Noh1, In Kwon Hong1, †, and Kyung Ai Park2
  • Department of Electronics and Electrical Engineering, Dankook University, 448-701, Republic of Korea
  • 1Department of Chemical Engineering, Dankook University, 448-701, Republic of Korea
  • 2Seoul Metropolitan Government Research Institute of Public Health and Environment, 427-070, Republic of Korea
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Chlorine refrigerants are considered global warming materials. Chlorinated refrigerants are being replaced with low chlorine content refrigerants, such as HFCs (CH3CF3, CH3CHF2, CH2FCF3, CHF2CF3, CH2F2). Predicting the cooling domain in the operating temperature.pressure range of refrigerants is very important. In this study, the cooling domain for the nonchlorine refrigerants was predicted and compared with the value for chlorine refrigerants, HCFCs (CH3CClF2, CH3CCl2F, CHClFCF3, CHCl2CF3, CHClF2). The cooling domain was depicted with Joule-Thomson coefficient (mJT). The mathematical algorithm of the Joule-Thomson coefficient was derived from the cubic type equation of states, van der Waals (vdW), Redlich-Kwong (RK), Soave-Redlich-Kwong (SRK), Peng-Robinson (PR). Joule-Thomson coefficients had different types with the equation of state. The maximum inversion pressure and corresponding temperature were proposed from each inversion curve. From these results, the refrigeration working domains of the green refrigerants were predicted.
Keywords:Joule-Thomson coefficient;Operating domain;HFCs;HCFCs;Inversion curve;Working domain
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