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Process Equipment and Plant Design

Process Equipment and Plant Design
Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

7500
15000
2500
1250

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Process Equipment and Plant Design
Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is

Less
Same
More or less depending upon the pressure & temperature inside the vessel and the nature of the fluid contained therein
More

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Process Equipment and Plant Design
A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to

5 mm
8 mm
10 mm
6 mm

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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

D
D²
D⁵
D⁹

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Process Equipment and Plant Design
Joint efficiency (J) for a seamless pipe is

0.85
1
< 0.5
1.2

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

60
5
350
200

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