화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 가을 (10/27 ~ 10/28, 고려대학교)
권호 12권 2호, p.2262
발표분야 열역학
제목 A Crossover Multi-Fluid Nonrandom Lattice Equation of State using the sine model
초록 The classical multi-fluid nonrandom lattice fluid equations of state fail to reproduce the non-analytical, singular behavior of fluids in the critical region by long-scale fluctuations in density. Supercritical fluids are characterized by large inhomogeneity of molecular distribution. The density fluctuation is a suitable parameter for quantitative and direct description of the inhomogeneity from the view of mesoscopic or microscopic scale.
In this research we develop a new crossover multi-fluid nonrandom lattice model using the sine model near to and far from the critical region which incorporates the scaling laws asymptotically close to the critical point and its transformed into the classical lattice fluid equations of state far away from the critical point. We show that, over a wide range of states, the crossover multi-fluid nonrandom crossover lattice fluid equation of state yields a much better representation of the thermodynamic properties of supercritical fluids than the classical lattice fluid equations of state.
저자 신문삼1, 이용진1, 신헌용2, 유기풍3, 김화용1
소속 1서울대, 2서울산업대, 3서강대
키워드 crossover; lattice; equation of state; supercritical fluids
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