Forced air flows over a convection heat exchanger in a room heater, resulting in

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Forced air flows over a convection heat exchanger in a room heater, resulting in a convective heat transfer coefficient 1.136 k W/m² K. The surface temperature of heat exchanger may be considered constant at 65 degree Celsius, and the air is at 20 degree Celsius. Determine the heat exchanger surface area required for 8.8 k W of heating

Options:

A . 0.272 m²

B . 0.472 m²

C . 0.172 m²

D . 0.672 m²

Answer: Option C
Answer: (c).0.172 m²

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