Prediction of heats of mixing of multicomponent systems using local composition models
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Authors
Tsai, Hsu-Chin
Issue Date
1988
Type
Thesis
Language
en_US
Keywords
Wilson local composition model , NRTL local composition model , UNIQUAC local composition , experimental binary heat of mixing data , residual sum of squares , Hooke-Jeeve algorithm , heats of mixing or multicomponent systems , heats of mixing , ternary heats of mixing , Mackay Science Project
Alternative Title
Abstract
The parameters of the Wilson, NRTL and UNIQUAC local composition models were obtained from experimental binary heat of mixing data. The calculations involved minimizing the residual sum of squares (equation) using the Hooke-Jeeve algorithm. Heats of mixing of multicomponent systems were calculated with the estimated parameters and compared to available experimental data. For systems containing no alcohol or water, the three local composition models can be used to predict heats of mixing of multicomponent systems with errors normally not exceeding 15 %. For systems containing water, the empirical equation, proposed by Tsao and Smith proved to be more adequate for the prediction of ternary heats of mixing than the three local composition models used in this work.
Description
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Citation
Publisher
University of Nevada, Reno
License
In Copyright(All Rights Reserved)