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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance Assessment of Refrigerant Vapor-Pressure Equations with Two Adjustable Parameters

두 개의 가변 변수가 있는 냉매 증기압 상관식의 성능 평가

  • 박경근 (국민대학교 기계시스템공학부)
  • Received : 2011.10.19
  • Published : 2012.02.10
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Abstract

Performance of various temperature-dependent vapor-pressure equations with two adjustable parameters is assessed. These are Antoine, Miller, Zia-Thodos, Mejbri-Bellagi and other 10 equations. The equations are fitted to correlate the data from NIST Chemistry WebBook for 43 pure substance refrigerants from the critical point to the triple point. It was found that the Mejbri-Bellagi equation yields the lowest average absolute deviation of 0.37% compared with that of 0.58% of the Miller equation which is known to give better fit to experimental data than the Antoine equation(1.42%) does.

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References

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