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

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

63.8

71.2

77.2

48.7

63.8

71.2

77.2

48.7

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Heat Transfer
Heat transfer rate described by Fourier's law will decrease, if the __________ increases.

Thickness

Temperature difference

Heat transfer area

Thermal conductivity

Thickness

Temperature difference

Heat transfer area

Thermal conductivity

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Heat Transfer
Analogy between mass and heat transfer is not applicable in case of

Thermal or pressure mass diffusion

Viscous heating or chemical reaction

Same velocity profile or equal eddy diffusivities

Both B and C

Thermal or pressure mass diffusion

Viscous heating or chemical reaction

Same velocity profile or equal eddy diffusivities

Both B and C

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Heat Transfer
The main purpose of providing fins on heat transfer surface is to increase the

Temperature gradient

Heat transfer area

Mechanical strength of the equipment

Heat transfer co-efficient

Temperature gradient

Heat transfer area

Mechanical strength of the equipment

Heat transfer co-efficient

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Heat Transfer
The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns.

5-50

100-1000

0.38-0.78

0.5-50

5-50

100-1000

0.38-0.78

0.5-50

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Heat Transfer
Fresh orange juice contains 12% (by weight) solids and the rest water 90% of the fresh juice is sent to an evaporator to remove water and subsequently mixed with the remaining 10% of fresh juice. The resultant product contains 40% solids. The kg of water removed from 1 kg fresh juice is

0.4

0.7

0.5

0.6

0.4

0.7

0.5

0.6

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer

Heat Transfer Heat transfer rate described by Fourier's law will decrease, if the __________ increases.

Heat Transfer Analogy between mass and heat transfer is not applicable in case of

Heat Transfer The main purpose of providing fins on heat transfer surface is to increase the

Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns.

Heat Transfer
Heat transfer rate described by Fourier's law will decrease, if the __________ increases.

Heat Transfer
Analogy between mass and heat transfer is not applicable in case of

Heat Transfer
The main purpose of providing fins on heat transfer surface is to increase the

Heat Transfer
The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns.