설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제15권5호
  • /
  • Pages.389-396
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  • 2003
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

이산화탄소, HFC-l34a, HCFC-22의 열역학적 상태량 계산 절차의 응용

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

  • 박형준 (국민대학교 기계공학과 대학원) ;
  • 박경근 (국민대학교 기계자동차공학부)
  • 발행 : 2003.05.01
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초록

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.

키워드

참고문헌

  1. Steam Table Calculation Programs (freeware)
  3. Center for Applied Thermodynamic Studies (CATS)
  4. National Institute of Standards and Technology NIST Thermodynamic and transport properties of refrigerants and refrigerant mixtures database(REFPROP), version 6.0 McLinden,M.O.;Klein,S.A.;Lemmon,E.W.;Peskin,A.P.
  6. Thermophysical Properties of Fluid Systems
  7. J. Phys. Chem. Ref. Data v.25 no.6 A new equation of state for carbon dioxide covering the fluid region from the triple-point temperature to 1100 K at pressures up to 800 MPa Span,R.;Wagner,W.
  8. J. Phys. Chem. Ref. Data v.23 no.5 An international standard formulation for the thermodynamic properties of 1,1,1,2-tetrafluo-roethane (HFC-134a) for temperatures from 170 K to 455 K and pressures up to 70 MPa Tillner-Roth,R.;Baehr,H.D.
  9. International Journal of Thermophysics v.16 no.5 Application of nonlinear regression in the development of a wide range formulation for HCFC-22 Kamei,A.;Beyerlein,S.W.;Jacobsen,R.T.
  10. Fundamentals of Engineering Thermodynamics Moran,M.J.;Shapiro,H.N.;SI(ed.)
  11. Int. J. Refrig. v.16 no.6 A new equation of state for chlorodifluoromethane (R22) covering the entire fluid region from 116 K to 550 K at pressures up to 200 MPa Wagner,W.;Mark,V.;PruB,A.
  12. Proceedings of the SAREK 2001 Winter Annual Conference A preliminary study on the form of vapor pressure equation for refrigerants Park,K.K.
  13. Korean Journal of Air-Conditioning and Refrigeration Engineering v.10 no.5 A new type of saturated vapor density correlation for refrigerants Park,K.K.
  14. IIF-IIR Commission B1, BE, E1, and E2 Heat transfer of supercritical carbon dioxide flowing in a cooled horizontal tube Olson,D.A