A spherhe of aluminium is staying in an air atmosphere . what would be the change in the internal energy of the sphere with respect to the time given: Ti- initial temperature of the aluminium ( homogeneous) Ta- air temperature (constant) k -conduction coefficient of aluminium

A spherhe of aluminium is staying in an air atmosphere . what would be the change in the internal energy of the sphere with respect to the time given: Ti- initial temperature of the aluminium ( homogeneous) Ta- air temperature (constant) k -conduction coefficient of aluminium

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.11P

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

A spherhe of aluminium is staying in an air atmosphere . what would be the change in the internal energy of the sphere with respect to the time

given:

Ti- initial temperature of the aluminium ( homogeneous)

Ta- air temperature (constant)

k -conduction coefficient of aluminium

hinf- convective coefficient air

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