Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer co-efficient is 3k/l. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade?

Heat Transfer
Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer co-efficient is 3k/l. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade?

48.25

81.25

35.5

43.75

48.25

81.25

35.5

43.75

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

Heat transfer area

Thermal conductivity

Thickness

Temperature difference

Heat transfer area

Thermal conductivity

Thickness

Temperature difference

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Heat Transfer
Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid ?

Bleed point

None of the listed here

Vent

Catchall

Bleed point

None of the listed here

Vent

Catchall

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Heat Transfer
Boiling point elevation of an ideal solution

Decreases rapidly with temperature rise

In independent of pressure

Both B and C

Increases rapidly with temperature rise

Decreases rapidly with temperature rise

In independent of pressure

Both B and C

Increases rapidly with temperature rise

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Heat Transfer
Prandtl number is the ratio of

Thermal diffusivity to mass diffusivity

Momentum diffusivity to mass diffusivity

Momentum diffusivity to thermal diffusivity

Thermal diffusivity to momentum diffusivity

Thermal diffusivity to mass diffusivity

Momentum diffusivity to mass diffusivity

Momentum diffusivity to thermal diffusivity

Thermal diffusivity to momentum diffusivity

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Heat Transfer
In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface.

Saturated

Pool

Nucleate

Local

Saturated

Pool

Nucleate

Local

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Heat Transfer

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

Heat Transfer Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid ?

Heat Transfer Boiling point elevation of an ideal solution

Heat Transfer Prandtl number is the ratio of

Heat Transfer In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface.

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

Heat Transfer
Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid ?

Heat Transfer
Boiling point elevation of an ideal solution

Heat Transfer
Prandtl number is the ratio of

Heat Transfer
In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface.