A plate that is exposed to the outside environment at 30 ° C, gets a irradiation of 2000 W / m2 . The plate, which absorbs 80% of the irradiation and it has an emissivity of 0.5, it is always at a uniform temperature. An external air flow at 20 ° C and 15 W / m2 -K go through the plate. Calculate the temperature of the plate if it is in thermal equilibrium and in steady state conditions.

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A: The given information in the problem is shown in the following attached image:

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Q: A one-dimensional plane wall is exposed to convective and radiative conditions at x = 0. The ambient…

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Q: Molten metal at 2000 C is poured using crucible. The liquid metal jet has a diameter of 3 mm with an…

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A: Radius (r) = 20 m polyurethane foam thickness (t) = 30 cm = 0.3 m  Tsi = -162 ºC = -162 +273 = 111 K…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.