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Process Equipment and Plant Design

Process Equipment and Plant Design
In the agitators, the power required will be changed with the increase of diameter of agitator (D) as

D⁹
D
D²
D⁵

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Process Equipment and Plant Design
Diameter of the seive tray column is determined by the

Hole diameter of the seive tray
Height of the plate spacing
Upper limit of the vapour velocity
Lower limit of vapour velocity

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Process Equipment and Plant Design
Maximum allowable vapour velocity in a bubble cap tower is determined by the

Diameter of the column
Entrainment considerations
Vapour density
None of these

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Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.3 to 0.5 d
0.95 d
0.1 to 0.2 d
0.65 to 0.85 d

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Process Equipment and Plant Design
In a shell and tube heat exchanger, the 'tube pitch' is defined as the

Shortest distance between two adj acent tube holes
O.D. of the tube for square pitch
None of these
Shortest centre to centre distance between adjacent tubes

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Process Equipment and Plant Design
1.2 to 3.8 cms is the value of the

Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.)
Skirt clearance for bubble caps
All of these
Downcomer liquid seal in case of a balanced tray design

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