In a gas-liquid shell and tube heat exchanger, the

Heat Transfer
In a gas-liquid shell and tube heat exchanger, the

Gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature

Gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes

All of these

Presence of a non-condensible gas decreases the condensing film co-efficient

Gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature

Gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes

All of these

Presence of a non-condensible gas decreases the condensing film co-efficient

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Heat Transfer
The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is

16.5 kW/m²

12.0 kW/m²

11.2 kW/m²

14.6 kW/m²

16.5 kW/m²

12.0 kW/m²

11.2 kW/m²

14.6 kW/m²

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Heat Transfer
A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Counter flow with process stream on shell side

Parallel flow with process stream on tube side

Parallel flow with process stream on shell side

Counter flow with process stream on tube side

Counter flow with process stream on shell side

Parallel flow with process stream on tube side

Parallel flow with process stream on shell side

Counter flow with process stream on tube side

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Heat Transfer
In a shell and tube heat exchanger, square pitch compared to triangular pitch

Can pack more surface area into a shell of given diameter

Gives a lower shell side pressure drop

Gives a higher shell side pressure drop

None of these

Can pack more surface area into a shell of given diameter

Gives a lower shell side pressure drop

Gives a higher shell side pressure drop

None of these

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Heat Transfer
Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling?

Triangular pitch

Square pitch

Diagonal square pitch

None of these

Triangular pitch

Square pitch

Diagonal square pitch

None of these

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Heat Transfer
In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is

40.5

26.8

25

34.4

40.5

26.8

25

34.4

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Heat Transfer

Heat Transfer In a gas-liquid shell and tube heat exchanger, the

Heat Transfer The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is

Heat Transfer A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch

Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling?

Heat Transfer
In a gas-liquid shell and tube heat exchanger, the

Heat Transfer
The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is

Heat Transfer
A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Heat Transfer
In a shell and tube heat exchanger, square pitch compared to triangular pitch

Heat Transfer
Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling?