Chemical and Biomolecular Engineering Faculty Research

Title

Thermodynamic Separation Efficiency and Sedimentation Criteria for Multiphase Processes: a Comparison of Rigorous and Approximate Models

Document Type

Article

Publication Date

Fall 8-1995

Abstract

Comparisons are made between three different models for calculating the entropy for separating a polydispersed system of particles from a fluid. These three entropy models provide the efficiency of a separation and the criteria for the separation. Previous models for either monodispersed or regular solution do not provide constrains for the models. The model for calculating the entropy for separating a solid-liquid system of polydispersed particles is rigorous. The rigorous entropy model is then compared to the regular solution and monodispersed models in calculating a separation efficiency and sedimentation criteria. The comparisons of the three models show only a negligible difference in the calculations for the efficiency of the separation and the sedimentation criteria. Hence, the simpler monodispersed model may be used for systems with distributions in particle size.

Publication Title

Progress in Separations and Waste Reduction

Volume

5

Issue

3

First Page

153

Last Page

164