QUESTION 1A flat blade turbine agitator with disk having six blades is installed in a tank. The tank diameter Dt is 1.95 m, the turbine diameter Da is 0.59 m, Dt = H, and the width W is 0.118 m. The tank contains four baffles, each having a width J of 0.1625 m. The turbine is operated at 110 rpm and the liquid in the tank has a viscosity of 10 cp and a density of 929 kg/m3. Calculate the power required kWh of the mixer.Using the existing conditions for the turbine with a disk as in Example 1 part (a), do as follows:Calculate the mixing timeCalculate the mixing time for a smaller vessel with a similar geometric ratio, where Dt is 0.50 m instead of 1.95 m. Do this for the same power per unit volume as used in part (a).Using the same mixing time calculated for the smaller vessel in part (b), calculate the new power per unit volume for the larger vessel in part (a)

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Answered: A flat blade turbine agitator with disk…

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 1

A flat blade turbine agitator with disk having six blades is installed in a tank. The tank diameter D_t is 1.95 m, the turbine diameter D_a is 0.59 m, D_t = H, and the width W is 0.118 m. The tank contains four baffles, each having a width J of 0.1625 m. The turbine is operated at 110 rpm and the liquid in the tank has a viscosity of 10 cp and a density of 929 kg/m³.

Calculate the power required kWh of the mixer.
Using the existing conditions for the turbine with a disk as in Example 1 part (a), do as follows:
Calculate the mixing time
Calculate the mixing time for a smaller vessel with a similar geometric ratio, where D_t is 0.50 m instead of 1.95 m. Do this for the same power per unit volume as used in part (a).

Using the same mixing time calculated for the smaller vessel in part (b), calculate the new power per unit volume for the larger vessel in part (a)

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