Chemical and Biomolecular Engineering Faculty Research

Title

Stress-strain Relation of Compressive Solka Floc Cakes

Document Type

Article

Publication Date

Fall 1995

Abstract

Many foods are processed by grinding, mashing, and mixing into slurry form. Frequently these materials are filtered, extruded, and molded. When these materials are stressed by compression or by filtering, the material structure deforms. When the material is washed by pumping a liquid through a cake the drag force of the moving liquid further deforms the material structure. The structural deformation results in an increased pressure drop and makes equipment design difficult. To improve predictability, a continuum theory is presented here with constitutive relations which characterize the compressive nature of the solid matrix. Experimental results are given here for an example application to cake filtration of cellulose fibers.

Publication Title

Journal of Food Engineering

Volume

25

Issue

3

First Page

373

Last Page

386