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Modelling of constant pressure expression of homogeneous semi-solid material

Jami, Mohammed Saedi and Iwata, Masashi (2020) Modelling of constant pressure expression of homogeneous semi-solid material. In: Kulliyyah of Engineering Research, Innovation and Commercialization Exhibition (KERICE), 8th December 2020, Kuala Lumpur. (Unpublished)

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Abstract

Mechanical expression is the separation of liquid from a two-phase solid/liquid system by compression due to movement of a retaining wall rather than pumping the solid/liquid system into a fixed chamber as in filtration. In this study, the basic consolidation equation was derived by combining the fundamental equation for power law non-Newtonian flow through the cake with the equation of continuity and solved numerically using the Runge–Kutta method. As a model solid/liquid mixture, cellulose powder mixed with an aqueous solution of sodium polyacrylate was used. The mixture was preconsolidated under a constant pressure ps1, resulting in a homogeneous cake of thickness L1. Then it was expressed under a constant pressure p. The time course of the thickness L of the sample was measured. L∞ is the final thickness of the compressed cake. The agreement between calculated and experimental Uc was satisfactory when the creep effect was considered.

Item Type: Conference or Workshop Item (Poster)
Additional Information: 5545/86563 - Online via Zoom
Uncontrolled Keywords: constant pressure expression, homogeneous semi-solid material
Subjects: T Technology > TP Chemical technology
T Technology > TP Chemical technology > TP155 Chemical engineering
T Technology > TS Manufactures
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Kulliyyah of Engineering
Depositing User: Professor Dr. Mohammed Saedi Jami, PhD CEng MIChemE
Date Deposited: 28 Dec 2020 15:37
Last Modified: 28 Dec 2020 15:37
URI: http://irep.iium.edu.my/id/eprint/86563

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