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.

80

95

60

45

80

95

60

45

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dt)/ph

(ph - dh)/ph

(ph - dh . dt/2)/ph

(ph - dh)/dh

(ph - dt)/ph

(ph - dh)/ph

(ph - dh . dt/2)/ph

(ph - dh)/dh

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Process Equipment and Plant Design
Which of the following lengths of heat exchanger tubes are normally not used in practice?

6 metres

2.5 metres

10 metres

0.5 metre

6 metres

2.5 metres

10 metres

0.5 metre

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Process Equipment and Plant Design
Shortest distance between two tubes is

More in case of triangular pitch as compared to square pitch of tube layout

Called tube clearance

None of these

Called tube pitch

More in case of triangular pitch as compared to square pitch of tube layout

Called tube clearance

None of these

Called tube pitch

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Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

0.5 d

1.5 d

D

2.5 d

0.5 d

1.5 d

D

2.5 d

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Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

0.5 to 1.5

5 to 10

10 to 15

2.5 to 4.0

0.5 to 1.5

5 to 10

10 to 15

2.5 to 4.0

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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 A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

Process Equipment and Plant Design Which of the following lengths of heat exchanger tubes are normally not used in practice?

Process Equipment and Plant Design Shortest distance between two tubes is

Process Equipment and Plant Design To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

Process Equipment and Plant Design In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

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
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

Process Equipment and Plant Design
Which of the following lengths of heat exchanger tubes are normally not used in practice?

Process Equipment and Plant Design
Shortest distance between two tubes is

Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.