Homework Help is Here – Start Your Trial Now!
Engineering
Chemical Engineering
Consider a cylindrical vessel with radius 200 mm which contains a settling suspension composed of a solvent (solvent density 0.86 g/cm³ and dynamic viscosity 5.2 cP) and spherical particles with mean diameter 50 µm and density 1.4 g/cm³. (a) Consider the segment of suspension that is settling under unhindered settling (type 1) conditions. Calculate the time required to generate the volume of clear layer during the settling as given in the table below. The calculated velocity of the single particle is the velocity at time point 1. To calculate the single particle velocity for time points 2 and 3, consider a velocity reduction of 20% at each progression of settling. Time point 0 1 2 3 (b) A new suspension with different properties (see table below) is settling under unhindered settling (type I) conditions in a cylinder of radius 100 mm. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Volume of clear layer (mL) 0 29 75 300 Using the new settling flow rate shown in the table below, calculate the mean particle diameter using the final time point. 29 75 120 Value 0.999 10.2 1.9 Volume of cle layer (mL) Time (s) 0 0 43 135 375

Consider a cylindrical vessel with radius 200 mm which contains a settling suspension composed of a solvent (solvent density 0.86 g/cm³ and dynamic viscosity 5.2 cP) and spherical particles with mean diameter 50 µm and density 1.4 g/cm³. (a) Consider the segment of suspension that is settling under unhindered settling (type 1) conditions. Calculate the time required to generate the volume of clear layer during the settling as given in the table below. The calculated velocity of the single particle is the velocity at time point 1. To calculate the single particle velocity for time points 2 and 3, consider a velocity reduction of 20% at each progression of settling. Time point 0 1 2 3 (b) A new suspension with different properties (see table below) is settling under unhindered settling (type I) conditions in a cylinder of radius 100 mm. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Volume of clear layer (mL) 0 29 75 300 Using the new settling flow rate shown in the table below, calculate the mean particle diameter using the final time point. 29 75 120 Value 0.999 10.2 1.9 Volume of cle layer (mL) Time (s) 0 0 43 135 375

Introduction to Chemical Engineering Thermodynamics
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
See similar textbooks
icon
Related questions
Question

feed back to aid with ques- 

(a) In this question a suspension is settling over time. As time progresses the volume of the clear layer at the top of the cylinder will increase. You know that the clear layer has a cylindrical shape. Therefore, you can calculate the height of the clear layer at each volume given using the equation for the volume of a cylinder. You are told that you can calculate the single particle velocity at time point 1 which corresponds to the point where the volume of the clear layer is 29 mL.

 

 

answers

 Time (s)  0,1.6,5.3, 26.4

Consider a cylindrical vessel with radius 200 mm which contains a settling suspension composed of a solvent (solvent density 0.86 g/cm³ and dynamic viscosity 5.2 cP) and spherical particles with mean diameter 50 µm and density 1.4 g/cm³. (a) Consider the segment of suspension that is settling under unhindered settling (type 1) conditions. Calculate the time required to generate the volume of clear layer during the settling as given in the table below. The calculated velocity of the single particle is the velocity at time point 1. To calculate the single particle velocity for time points 2 and 3, consider a velocity reduction of 20% at each progression of settling. Time point 0 2 3 (b) A new suspension with different properties (see table below) is settling under unhindered settling (type I) conditions in a cylinder of radius 100 mm. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Volume of clear layer (mL) 0 29 75 300 Value 0.999 10.2 1.9 Using the new settling flow rate shown in the table below, calculate the mean particle diameter using the final time point. 29 75 120 Volume of clear layer (mL) Time (s) 0 0 43 135 375
Transcribed Image Text:Consider a cylindrical vessel with radius 200 mm which contains a settling suspension composed of a solvent (solvent density 0.86 g/cm³ and dynamic viscosity 5.2 cP) and spherical particles with mean diameter 50 µm and density 1.4 g/cm³. (a) Consider the segment of suspension that is settling under unhindered settling (type 1) conditions. Calculate the time required to generate the volume of clear layer during the settling as given in the table below. The calculated velocity of the single particle is the velocity at time point 1. To calculate the single particle velocity for time points 2 and 3, consider a velocity reduction of 20% at each progression of settling. Time point 0 2 3 (b) A new suspension with different properties (see table below) is settling under unhindered settling (type I) conditions in a cylinder of radius 100 mm. Property Fluid density (g/cm³) Fluid dynamic viscosity (CP) Particle density (g/cm³) Volume of clear layer (mL) 0 29 75 300 Value 0.999 10.2 1.9 Using the new settling flow rate shown in the table below, calculate the mean particle diameter using the final time point. 29 75 120 Volume of clear layer (mL) Time (s) 0 0 43 135 375
Unhindered settling, single particle velocity: vs g(Ps-Pf)x² 18μ
Transcribed Image Text:Unhindered settling, single particle velocity: vs g(Ps-Pf)x² 18μ
Expert Solution
steps

Step by step

Solved in 5 steps with 28 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The
SEE MORE TEXTBOOKS