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Application of Procedures to Calculate Thermodynamic Properties of Carbon Dioxide, HFC-l34a and HCFC-22  

박형준 (국민대학교 기계공학과 대학원)
박경근 (국민대학교 기계자동차공학부)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.15, no.5, 2003 , pp. 389-396 More about this Journal
Abstract
Systematic methods to calculate thermodynamic properties of carbon dioxide, HFC-l34a and HCFC-22 are presented. First, application of a basic method to identify the saturation state with given temperature or pressure is attempted and the feasibility of auxiliary equations is tested. Next, detailed procedures are suggested to tell a phase when temperature/pressure and another property are specified. Finally Newton-Raphson method is applied to calculate unknown thermodynamic properties fixing the state with the two independent properties specified. The procedures described here are utilized to develop a computer program, which is used to find the relation between temperature and pressure with maximum isobaric heat capacity for super-critical carbon dioxide.
Keywords
Carbon dioxide; HFC-l34a; HCFC-22; Property calculation; Thermodynamic property;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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