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Process Equipment and Plant Design

Process Equipment and Plant Design
Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is

About 3 times
Less
About 0.33 times
Same

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Process Equipment and Plant Design
Thickness of the frame of a plate and frame filter as compared to that of plates is

Less
Same
Either A or B
More

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Process Equipment and Plant Design
Heat transfer co-efficient, hG(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to

HG = 0.0176G0.37
1.004G0.8
HG = 1.004G0.37
0.0176G1.37

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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
D⁹
D²
D

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Process Equipment and Plant Design
Baffles may be eliminated for

High viscosity liquids (> 600 poise)
Large diameter tanks
Low viscosity liquids (< 200 poise)
None of these

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Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering run) would be around

350
5
60
200

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