A pilot plant reactor, a scale model of a production unit, is of such size that 1 g charged to the pilot plant reactor is equivalent to 500 g of the same material charged to the production unit. The production unit is 2 m in diameter and 2 m deep and contains a six-blade turbine agitator 0.6 m in diameter. The optimum agitator speed in the pilot plant reactor is found by experiment to be 330 rpm. d. At what speed should it run if the Mixing Reynolds Number is held constant
A pilot plant reactor, a scale model of a production unit, is of such size that 1 g charged to the pilot plant reactor is equivalent to 500 g of the same material charged to the production unit. The production unit is 2 m in diameter and 2 m deep and contains a six-blade turbine agitator 0.6 m in diameter. The optimum agitator speed in the pilot plant reactor is found by experiment to be 330 rpm. d. At what speed should it run if the Mixing Reynolds Number is held constant
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
A pilot plant reactor, a scale model of a production unit, is of such size that 1 g charged to the pilot plant reactor is equivalent to 500 g of the same material charged to the production unit. The production unit is 2 m in diameter and 2 m deep and contains a six-blade turbine agitator 0.6 m in diameter. The optimum agitator speed in the pilot plant reactor is found by experiment to be 330 rpm.
d. At what speed should it run if the Mixing Reynolds Number is held constant?
Transcribed Image Text:d
pN³DS
Np =
100
60
40
(ND2)2/31/6 1/2
H¹2D,312
11 = 'f
20
10
6
4 5
2
1
0.6
0.4
0.2
0.1
1
103
10²
10
1
4
24
1
2,3
10
24
6
10²2 4
N'Re =
10 10²
N',
324
Re=
10³
DaNp
μ
10³ 104
ND P
μ
104
123456
2
3
5
6
24 105
105 106
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