Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the

Heat Transfer
Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the

Condensate is corrosive in nature

Higher condensing film co-efficient is desired

Lower pressure drop through the exchanger is desired

Temperature of the incoming vapor is very high

Condensate is corrosive in nature

Higher condensing film co-efficient is desired

Lower pressure drop through the exchanger is desired

Temperature of the incoming vapor is very high

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Heat Transfer
To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is

1-2 heat exchanger

1-1 heat exchanger

2-4 heat exchanger

3-2 heat exchanger

1-2 heat exchanger

1-1 heat exchanger

2-4 heat exchanger

3-2 heat exchanger

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Heat Transfer
With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer

Increases

Decreases

Remains unaffected

Increases exponentially

Increases

Decreases

Remains unaffected

Increases exponentially

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Heat Transfer
In a heat exchanger, one transfer unit means

Both A and B

A section of the exchanger in which change in temperature of one stream equals the average driving force in the section

The size of the exchanger in which heat transfer rate is 1 kcal/hr

None of these

Both A and B

A section of the exchanger in which change in temperature of one stream equals the average driving force in the section

The size of the exchanger in which heat transfer rate is 1 kcal/hr

None of these

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Heat Transfer
Double pipe heat exchangers are used

because it occupies less floor area

because it is less costly

when heat transfer area required is very low

when heat transfer area required is very high

because it occupies less floor area

because it is less costly

when heat transfer area required is very low

when heat transfer area required is very high

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Heat Transfer
Which has the lowest Prandtl number?

Lube oil

Liquid metal

Water

Aqueous solution

Lube oil

Liquid metal

Water

Aqueous solution

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Heat Transfer

Heat Transfer Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the

Heat Transfer To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is

Heat Transfer With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer

Heat Transfer In a heat exchanger, one transfer unit means

Heat Transfer Double pipe heat exchangers are used

Heat Transfer Which has the lowest Prandtl number?

Heat Transfer
Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the

Heat Transfer
To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is

Heat Transfer
With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer

Heat Transfer
In a heat exchanger, one transfer unit means

Heat Transfer
Double pipe heat exchangers are used

Heat Transfer
Which has the lowest Prandtl number?