Question 4A bed of ion exchange beads 8-ft deep (2.44 mm) is to be backwashed with water to remove dirt. The particles have a density of 1.24 g/cm3 and an average size of 1.1 mm. Assuming that the beads are spherical (Φs = 1) and εmf = 0.40,What is the minimum fluidization velocity using water at 20℃? Take µ = 0.01 P where (1 cP = 0.001 Pa.s) and Δρ = 0.24 g/cm3 What velocity is required to expand the bed by 25% given that Lp = 1.25Lmf and

Given; Dp = 1.1×10-3 μ = 1.005×10-5 εm = 0.4 ρ = 980kg/m3 ρp = 1240 kg/m3 ϕs = 1

Answered: Question 4 A bed of ion exchange beads…

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

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Question 4

A bed of ion exchange beads 8-ft deep (2.44 mm) is to be backwashed with water to remove dirt. The particles have a density of 1.24 g/cm³ and an average size of 1.1 mm. Assuming that the beads are spherical (Φ_s = 1) and ε_mf = 0.40,

What is the minimum fluidization velocity using water at 20℃? Take µ = 0.01 P where (1 cP = 0.001 Pa.s) and Δρ = 0.24 g/cm³

What velocity is required to expand the bed by 25% given that L_p = 1.25L_mf and

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