The shell side pressure drop in a shell and tube heat exchanger is maximum for __________ baffle.

Process Equipment and Plant Design
The shell side pressure drop in a shell and tube heat exchanger is maximum for __________ baffle.

Disk and ring

Independent of the type of

Orifice

Segmental

Disk and ring

Independent of the type of

Orifice

Segmental

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Process Equipment and Plant Design
Liquid gradient over a tray can be minimised by

All of these

Providing a higher skirt clearance or a higher weir

Using split flow, radial flow or cascade flow for column diameter large than 4 ft

Decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must

All of these

Providing a higher skirt clearance or a higher weir

Using split flow, radial flow or cascade flow for column diameter large than 4 ft

Decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must

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Process Equipment and Plant Design
Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi)

Η = 1.66 - 0.25 log μ

Η = 17 - 61.1 log μ

Η = 24.6 (Δp/μ)

Η = 0.25 log μ - 1.67

Η = 1.66 - 0.25 log μ

Η = 17 - 61.1 log μ

Η = 24.6 (Δp/μ)

Η = 0.25 log μ - 1.67

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Process Equipment and Plant Design
Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around

0.5"

2.5"

50% of the plate spacing

5"

0.5"

2.5"

50% of the plate spacing

5"

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Process Equipment and Plant Design
In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

12.5

17.5

2.5

5

12.5

17.5

2.5

5

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Process Equipment and Plant Design
__________ strain is measured using a 'strain rosetter'.

Linear

Volumetric

None of these

Shear

Linear

Volumetric

None of these

Shear

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Process Equipment and Plant Design

Process Equipment and Plant Design The shell side pressure drop in a shell and tube heat exchanger is maximum for __________ baffle.

Process Equipment and Plant Design Liquid gradient over a tray can be minimised by

Process Equipment and Plant Design Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around

Process Equipment and Plant Design In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

Process Equipment and Plant Design __________ strain is measured using a 'strain rosetter'.

Process Equipment and Plant Design
The shell side pressure drop in a shell and tube heat exchanger is maximum for __________ baffle.

Process Equipment and Plant Design
Liquid gradient over a tray can be minimised by

Process Equipment and Plant Design
Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around

Process Equipment and Plant Design
In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

Process Equipment and Plant Design
__________ strain is measured using a 'strain rosetter'.