| 학회 | 한국화학공학회 |
| 학술대회 | 2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔) |
| 권호 | 12권 1호, p.775 |
| 발표분야 | 열역학 |
| 제목 | A New Crossover Quasi-chemical Nonrandom Lattice Fluid Model near to and far from the Critical Region |
| 초록 | It is well known that the classical 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 quasi-chemical nonrandom lattice 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 quasi-chemical 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 | 신문삼, 이용진, 김화용 |
| 소속 | 서울대 |
| 키워드 | crossover; lattice; equation of state; supercritical fluids |
| 원문파일 | 초록 보기 |
