A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

95

60

80

45

95

60

80

45

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Process Equipment and Plant Design
The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

1.5 to 2

1 to 1.5

2 to 2.5

0.5 to 1

1.5 to 2

1 to 1.5

2 to 2.5

0.5 to 1

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Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Small downcomer liquid seal

Liquid gradient on the tray

Lower static submergence

Lower skirt clearance

Small downcomer liquid seal

Liquid gradient on the tray

Lower static submergence

Lower skirt clearance

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Process Equipment and Plant Design
In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

Z.H.ρ/L

Z.H/L.ρ

L/Z.H.ρ

H.ρ/L

Z.H.ρ/L

Z.H/L.ρ

L/Z.H.ρ

H.ρ/L

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Process Equipment and Plant Design
The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called

Skirt clearance

None of these

Downcomer liquid seal

Static submergence

Skirt clearance

None of these

Downcomer liquid seal

Static submergence

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Process Equipment and Plant Design
Stage efficiency for packed tower varies with the

Fluid rates and fluid properties

Operating pressure and column diameter

Type & size of packing

All of these

Fluid rates and fluid properties

Operating pressure and column diameter

Type & size of packing

All of these

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Process Equipment and Plant Design

Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

Process Equipment and Plant Design In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Process Equipment and Plant Design In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

Process Equipment and Plant Design The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called

Process Equipment and Plant Design Stage efficiency for packed tower varies with the

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Process Equipment and Plant Design
In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

Process Equipment and Plant Design
The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called

Process Equipment and Plant Design
Stage efficiency for packed tower varies with the