PROCESS EQUIPMENT AND PLANT DESIGN QUIZ

Shell side, if the flow is counter-current and tube side if the flow is co-current

Shell side for smaller total pressure drop

Shell side for large overall heat transfer co-efficient

Tubes to avoid the expansion of high pressure shell construction

f = 0.04/NRe0.16

f = 0.22 NRe0.05

f = 25/NRe

f = 16/NRe

0.75

0.85

0.55

0.95

Containing suspended solids flows at low velocity

Is of high specific gravity

Is highly viscous

Containing suspended solids flows at high velocity

A liquid phase catalytic reactor

Pot type reactor

A liquid phase reactor

A vapor phase reactor

0.6-0.8 times

Equal to

2 ft irrespective of (for column > 3 ft diameter)

Twice

Is always less than arithmetic average value

May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current

Is always more than arithmetic mean value and the geometric mean value

Is always less than arithmetic mean value, but more than geometric mean value

Flat plate

Ellipsoidal (2 : 1)

Conical

Hemispherical

I.D. of the shell

25 cms

40% of the I.D. of the shell

5 cms

Number of equilibrium stages required is likely to be very small

Relative volatility is close to one (e.g., separation of close boiling isomers)

Number of equilibrium stages in only stripping section is to be calculated

Feed is not at its bubble point