UNIFAC
UNIFAC (Universal Functional-group Activity Coefficient) ni mfumo wa kutabiri viwango vya shughuli za awamu ya kioevu katika mchanganyiko wa vipengele vingi. Uliundwa na Fredenslund, Jones, na Prausnitz mnamo 1975, unavunja molekuli katika vikundi vya utendaji na kutumia vigezo vya mwingiliano wa vikundi kukadiria tabia isiyo ya kawaida. UNIFAC ni wa kimapinduzi kwa sababu unaweza kutabiri usawa wa awamu kwa mchanganyiko ambao haujawahi kupimwa kwa majaribio, na kuufanya kuwa muhimu sana kwa usanifu wa michakato na uhandisi wa kemikali.
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Method map
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Vyanzo
- Fredenslund, A., Jones, R. L., & Prausnitz, J. M. (1975). Group-contribution estimation of activity coefficients in nonideal liquid mixtures. AIChE Journal, 21(6), 1086-1099. DOI: 10.1002/aic.690210607 ↗
- Prausnitz, J. M., Lichtenthaler, R. N., & de Azevedo, E. G. (2001). Molecular Thermodynamics of Fluid-Phase Equilibria (3rd ed.). Prentice Hall. ISBN: 978-0-13-977745-6
- Gmehling, J., Li, J., & Schiller, M. (1993). A modified UNIFAC model for the prediction of phase equilibria and excess enthalpies. Industrial & Engineering Chemistry Research, 32(1), 178-193. link ↗
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 3). UNIFAC (Universal Functional-group Activity Coefficient) Model. ScholarGate. https://scholargate.app/sw/applied-physics/unifac
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- Mlinganyo wa Hali wa Peng-RobinsonFizikia Tumizi↔ compare
- Uchanganuzi wa PinchFizikia Tumizi↔ compare
- Uchujaji Tumizi (Reactive Distillation)Fizikia Tumizi↔ compare
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