화학공학소재연구정보센터
HWAHAK KONGHAK, Vol.41, No.3, 410-413, June, 2003
순수물질의 증발 엔탈피 상관식 개발
Development of a Correlation of the Enthalpy of Vaporization for Pure Substances
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초록
증발 엔탈피에 대한 2항 상관식을 제안하였다. 이 상관식을 이용하여 41개 순수물질의 증발 엔탈피 자료를 곡선 접합하였으며 평균 AAD(평균절대편차)가 0.16%이었다. 이는 Xiang(0.30%), Somayajula(0.24%), Guermouche-Vergnaund(0.23%) 등의 기존 상관식보다 우수한 결과이다. 본 연구에서 제안하는 상관식은 데이터가 있는 전 온도 범위에서 쓸 수 있다.
A two-term correlation equation of the enthalpy of vaporization is proposed. The correlation equation is used to fit the enthalpy data for 41 pure substances yielding an average AAD of 0.16%. The result compares with those of conventional equations, such as Xiang(0.30%), Somayajulu(0.24%) and Guermouche-Vergnaund(0.23%). The equation proposed in this work is valid over the entire temperature range where data points exist.
  1. Watson KM, Ind. Eng. Chem., 35, 398 (1943) 
  2. Majer V, Svoboda V, Pick J, Heats of Vaporization of Fluids, Elsevier, Amsterdam (1989)
  3. Torquato S, Stell G, J. Phys. Chem., 85(21), 3029 (1981) 
  4. Xiang HW, Fluid Phase Equilib., 137(1-2), 53 (1997) 
  5. Somayajulu GR, Int. J. Thermophys., 9(4), 567 (1988) 
  6. Guermouche MH, Vergnaund JM, J. Chim. Phys., 71, 1049 (1974)
  7. Daubert TE, Ind. Eng. Chem. Res., 37(8), 3260 (1998) 
  8. Reid RC, Prausnitz JM, Poling BE, The Preperties of Gases & Liquids, McGraw-Hill, New York, NY (1987)
  9. ASHRAE, ASHRAE Handbook Fundamentals, Chap. 17, ASHRAE, Atlanta, GA (1993)
  10. ASHRAE, ASHRAE Handbook Fundamentals, Chap. 18, ASHRAE, Atlanta, GA (1997)
  11. ASHRAE, ASHRAE Handbook Fundamentals, Chap. 20, ASHRAE, Atlanta, GA (2001)
  12. Lemmon EW, McLinden MO, Friend DG, Linstrom PJ, Mallard WG, NIST Chemistry WebBook, NIST SRDN 69, NIST, Gaithersburg, MD(http://webbook,nist.gov) (2001)