An insulation material of thermal conductivity k = 0.05 is sandwiched between thin metal sheets of m-K negligible thickness. It is used as the material of the wall of a drying oven. The air inside the oven is 300°C with a convection heat transfer coefficient of 30 The inner wall surface is subjected to a m².K W constant radiant heat flux of 100 from hotter objects inside the oven. The air inside the room where the oven is situated has a temperature of 25°C and the combined heat transfer coefficient for W m² W convection and radiation from the outer surface is 10- . If the outer surface temperature of the oven m².K W is safe to touch at a temperature of 40°C, what is the required rate of heat loss from the wall in

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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.