Find the rate of heat transfer by convection (kW) when: the convective heat transfer coefficient is 7.2 W/Km^2, the surface area is 16 m^2, the surface temp. is 317 K, and the surrounding temp. is 429 K.

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Answer 1

The rate of heat transfer by convection (kW) when the convective heat transfer coefficient is 7.2 W/Km², the surface area is 16 m², and the surface temp. is 317 K, and the surrounding temp. is 429 K.

Heat transfer is the method of exchanging heat energy from one location to another. The three methods of heat transfer are conduction, convection, and radiation. The rate of heat transfer by convection is given by;

Q = h.A (T surrounding - T surface)

Where Q is the rate of heat transfer by convection h is the convective heat transfer coefficient A is the surface area t surface is the surface temperature t surrounding is the surrounding temperature Given, h = 7.2 W/Km²

A = 16 m²t

surface = 317 Kt surrounding = 429 K.

Substitute the given values into the formula;

Q = 7.2 × 16 × (429 - 317)Q = 7.2 × 16 × 112Q = 12902.4 W = 12.902 kW

Therefore, the rate of heat transfer by convection is 12.902 kW.

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