TASK 4: Consider a suspension settling under hindered settling conditions (type III) in a cylinder with radius 50 mm. Suspension properties are listed in the table below. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Particle mean diameter (um) Porosity (a) Determine the hindered velocity of settling. (b) A new suspension is settling under hindered settling conditions (type III) in a cylinder with radius 120 mm. Suspension properties are listed in the table below. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Particle mean diameter (um) 0.2 < Re < 1 1 < Re < 500 Value 0.867 14.3 1.45 55 0.55 In this case, the single particle velocity is 1.7 x 10-4 m/s. Determine the Galileo number and the Richardson Zaki index selecting the appropriate Richardson Zaki n index equation. Re at terminal velocity Re < 0.2 500 < Re Value 0.864 5.5 2.1 100 Richardson Zaki n index 5) n = 4.65 +19.5 ( 2.39 n = (4.35 +17.5)) Re n = (4.45 + 18 )) Re-0.1 Re-0.03
TASK 4: Consider a suspension settling under hindered settling conditions (type III) in a cylinder with radius 50 mm. Suspension properties are listed in the table below. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Particle mean diameter (um) Porosity (a) Determine the hindered velocity of settling. (b) A new suspension is settling under hindered settling conditions (type III) in a cylinder with radius 120 mm. Suspension properties are listed in the table below. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Particle mean diameter (um) 0.2 < Re < 1 1 < Re < 500 Value 0.867 14.3 1.45 55 0.55 In this case, the single particle velocity is 1.7 x 10-4 m/s. Determine the Galileo number and the Richardson Zaki index selecting the appropriate Richardson Zaki n index equation. Re at terminal velocity Re < 0.2 500 < Re Value 0.864 5.5 2.1 100 Richardson Zaki n index 5) n = 4.65 +19.5 ( 2.39 n = (4.35 +17.5)) Re n = (4.45 + 18 )) Re-0.1 Re-0.03
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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ANSWERS ARE
W6/T4 (a) 1.6 x 10-5 m/s
(b) Ga = 3.35 x 109 , n = 4.66
SHOW WORKING ON HOW TO REACH THESE PLEASE DONT COPY FROM OTHER QUETIONS AS THESE ARE WRONG.
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