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Question

Which of the following would lead to a reduction in thermal resistance?

A.

In conduction, reduction in the thickness of the material and an increase in the thermal conductivity.

B.

In convection, stirring of the fluid and cleaning the heating surface

C.

In radiation, increasing the temperature and reducing the emissivity

D.

All options are correct

Answer ( Option D)

All options are correct

Solution

Following steps are used to reduce the thermal resistance :

ŸIn conduction, reduction in the thickness of the material and an increase in thermal conductivity.

ŸIn convection stirring of the fluid and cleaning the heating surface

ŸIn radiation, increasing the temperature and reducing the emissivity.

Hence, the correct option is (D).

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