Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate ?

Byadmin March 2, 2019August 23, 2021

Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate ?

A. Triangular pitch
B. Square pitch
C. Diagonal square pitch
D. Heat transfer rate is independent of tube arrangement

Process Equipment and Plant Design

If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will _____________ times?

If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will _____________ times?

A. Increase by 1.8
B. Decrease by 22
C. Increase by 21.6
D. None of these

Read More If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will _____________ times?
Process Equipment and Plant Design

Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than ______________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop?

Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than ______________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop?

A. 25
B. 50
C. 75
D. 150

Read More Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than ______________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop?
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?

Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about _____________ kcal/hr.m2.°C?

A. 1250
B. 2500
C. 7500
D. 15000

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

Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling ?

Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling ?

A. CO2
B. SO2
C. NH3
D. None of these

Read More Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling ?
Process Equipment and Plant Design

Stage efficiency for packed tower varies with the____________________?

Stage efficiency for packed tower varies with the____________________?

A. Type & size of packing
B. Fluid rates and fluid properties
C. Operating pressure and column diameter
D. All A., B. and C.

Read More Stage efficiency for packed tower varies with the____________________?
Process Equipment and Plant Design

In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?

In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?

A. Called tube pitch
B. Called tube clearance
C. Always less than the diameter of the tube
D. None of these

Read More In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?

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