Experimental and theoretical studies of dense fluid mixtures
During the thirty-one months of this grant, extensive measurements of the speed of sound in three alternative refrigerants and in SF[sub 6] were conducted. Modifications and improvements were made to the equipment for measuring interfacial tension in pure fluids and mixtures and a new set of measurements of interfacial tension over a wide range of temperature and pressure conditions for three mixtures of simple fluids was conducted. The results of these interfacial tension measurements were used to show that the new corresponding states theory of the variation of surface tension with temperature and composition is superior to the previous corresponding states theory. Computer simulations were performed on a system of molecules interacting via a Lennard-Jones potential that contained two liquid-vapor interfaces. Careful attention to the parameters of the simulation and to achievement of equilibrium illuminated problems that had plagued earlier simulations.
- Research Organization:
- Cornell Univ., Ithaca, NY (United States). School of Chemical Engineering
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-86ER13623
- OSTI ID:
- 6853562
- Report Number(s):
- DOE/ER/13623-3; ON: DE93006070
- Country of Publication:
- United States
- Language:
- English
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