화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔)
권호 13권 1호, p.822
발표분야 열역학
제목 A Crossover Quasi-Chemical Lattice Fluid Model from Singular Critical to Regular Classical Thermodynamic Behavior of Fluids
초록 A lattice fluid model is one of the most versatile, molecular-based engineering equations of state but, in common with all analytic equations of state, the lattice fluid EOS exhibits classical behavior in the critical region rather than the non-analytical, singular behavior seen in real fluids.
In this research, we use the Quasi-Chemical Lattice Fluid (QLF) equation of state and develop a Crossover Quasi-Chemical Lattice Fluid (xQLF) equation of state from singular critical to regular classical Thermodynamic Behavior of Fluids which incorporates the scaling laws valid asymptotically close to the critical point while reducing to the original classical QLF EOS far from the critical point. We show that, over a wide range of states, the xQLF EOS yields the saturated vapor pressure data and the density data with a much better accuracy than the classical QLF EOS.
저자 신문삼, 이용진, 장성현, 김화용
소속 서울대
키워드 crossover; lattice; equation of state
E-Mail hwayongk@snu.ac.kr
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