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RISS 인기검색어
- 검색키워드
- 저자 : 심민영(Shim Min Young) (검색결과 4 건)
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심민영(Shim Min Young),김기창(Kim Ki Chang) 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.1
In this work we measured the total pressure of the aqueous solutions and the methanol-water solutions dissolved with inorganic salts, at 25℃. In organic electrolytes used in this work were K₂SO₄and (NH₄)₂SO₄. Using the measured vapour pressures the activity coefficient of solvents and the mean ionic activity coefficient were obtained through thermodynamic relations. The activity coefficients of solvent and the mean ionic activity coefficirnt obtained in this work were fitted with Macedo’s model and Acard’s model. Both two models were good agreeable to the vapor pressure and the mean ionic activity coefficient for the electroyte aqueous solutions. For electrolyte /methanol/water solutions, Macedo’s model had much deviation from experimental data, while Acard’s model showed a good agreement with experimental data.
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김미경(Kim Mi Kyoung),심민영(Shim Min Young),김기창(Kim Ki Chang) 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.1
For modeling an equation of state suitable for describing associating fluids, we combined the cubic equation of state (Peng-Robinson)and an association term of SAFT. The resulting EoS(Cubic-Plus-Association)is not cubic with respect to volume and contains five pure compound parameters.Excellent correlations of both vapour pressures and saturated liquid volumes were obtained for n-alcohols and secondary alcohols, We considered a method for reducing the number of adjustable pure compound parameters from five to three, and the resulting 3-parameters EoS relation maintained the good correlation of vapour pressures and saturated liquid volumes.
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심민영,김기창 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.A
In this work we measured the total pressure of the aqueous solutions and the methanol-water solutions dissolved with inorganic salts, at 25℃. In organic electrolytes used in this work were K₂SO₄and (NH₄)₂SO₄. Using the measured vapour pressures the activity coefficient of solvents and the mean ionic activity coefficient were obtained through thermodynamic relations. The activity coefficients of solvent and the mean ionic activity coefficirnt obtained in this work were fitted with Macedo's model and Acard's model. Both two models were good agreeable to the vapor pressure and the mean ionic activity coefficient for the electroyte aqueous solutions. For electrolyte /methanol/water solutions, Macedo's model had much deviation from experimental data, while Acard's model showed a good agreement with experimental data.
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김미경,심민영,김기창 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.A
For modeling an equation of state suitable for describing associating fluids, we combined the cubic equation of state (Peng-Robinson)and an association term of SAFT. The resulting EoS(Cubic-Plus-Association)is not cubic with respect to volume and contains five pure compound parameters.Excellent correlations of both vapour pressures and saturated liquid volumes were obtained for n-alcohols and secondary alcohols, We considered a method for reducing the number of adjustable pure compound parameters from five to three, and the resulting 3-parameters EoS relation maintained the good correlation of vapour pressures and saturated liquid volumes.
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