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Process Equipment and Plant Design

Process Equipment and Plant Design
__________ is the determining factor for the number of bubble caps to be used per tray.

Tray diameter
Vapor load
Permissible slot velocity
Liquid load

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

D⁵
D²
D⁹
D

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Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

D/5 or minimum 2" to D
D/2 or minimum 2" to 5D
D/5 or minimum 2" to 5D
None of these

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Process Equipment and Plant Design
Optimum reflux ratio in a continuous distillation column is determined by the

Total cost consideration (fixed cost of the column plus the cooling water & steam cost)
Maximum permissible vapour velocity
Flooding limit of the column
None of these

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Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

2.5 d
D
1.5 d
0.5 d

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Process Equipment and Plant Design
LMTD correction factor is used in heat exchanger design for

Multipass shell and tube heat exchanger
Fouling fluids
Double pipe heat exchanger
Counter flow of hot and cold fluids

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