Yeast cells must be separated from a fermentation broth. Assume that the cells are spherical with diameter 5 Hm and density 1.06 g/cm3 . The viscosity of the culture broth is 1.36∗10−3 kg/m.s.  At the temperature of separation, the density of the suspending fluid is 0.997 g/cm3.  Five hundred litres of broth must be treated every hour. Specify Σ for a suitably sized disc stack centrifuge.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Chapter1: Introduction
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Yeast cells must be separated from a fermentation broth. Assume that the cells are spherical with diameter 5 Hm and density 1.06 g/cm3 . The viscosity of the culture broth is 1.36∗10−3 kg/m.s.  At the temperature of separation, the density of the suspending fluid is 0.997 g/cm3.  Five hundred litres of broth must be treated every hour.

Specify Σ for a suitably sized disc stack centrifuge.

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