For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Heat Transfer
For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Increases the overall heat transfer coefficient

Decreases the pressure drop

None of these

Decreases the outlet temperature of cooling medium

Increases the overall heat transfer coefficient

Decreases the pressure drop

None of these

Decreases the outlet temperature of cooling medium

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Heat Transfer
In forced convection, the Nusselt number is a function of

Re and Gr

Re and Sc

Pr and Gr

Re and Pr

Re and Gr

Re and Sc

Pr and Gr

Re and Pr

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Heat Transfer
In the equation Q = UAΔt; Δt is

The difference of average bulk temperatures of hot and cold fluids

Geometric mean temperature difference

Arithmetic mean temperature difference

Logarithmic mean temperature difference

The difference of average bulk temperatures of hot and cold fluids

Geometric mean temperature difference

Arithmetic mean temperature difference

Logarithmic mean temperature difference

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Heat Transfer
For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it

Is more economical

All of these

Is easy to operate and maintain

Occupies smaller space

Is more economical

All of these

Is easy to operate and maintain

Occupies smaller space

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Heat Transfer
Dropwise condensation is promoted on a/an __________ surface.

Glazed

Smooth

Oily

Coated

Glazed

Smooth

Oily

Coated

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Heat Transfer
The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is

77.2

71.2

63.8

48.7

77.2

71.2

63.8

48.7

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Heat Transfer

Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Heat Transfer In forced convection, the Nusselt number is a function of

Heat Transfer In the equation Q = UAΔt; Δt is

Heat Transfer For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it

Heat Transfer Dropwise condensation is promoted on a/an __________ surface.

Heat Transfer
For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Heat Transfer
In forced convection, the Nusselt number is a function of

Heat Transfer
In the equation Q = UAΔt; Δt is

Heat Transfer
For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it

Heat Transfer
Dropwise condensation is promoted on a/an __________ surface.