Consider a 0.8 m high and 1.5 m wide glass window with a thickness of 8mm and a thermal conductivity of K-0.78 w/m.k. Determine the steady rate of heat transfer through this glass window and the temperature of its inner face for a day during which the room is maintaned at 20°C while temperature of the outdoors is -10°C. Take the heat transfer coeafficients on the inner and outer surfaces of the window to be h;-10 w/m'k and h;-40 w/m'k

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Q: Consider a person standing in a roomn at 20°C with an exposed surface area of 1.5 m2. The deep body…

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Q: Answer shows Qtotal and Temperature at inner surface of window. 496W, 0.4°C Ob, 542W, 1.2°C O. 572W,…

A: Solution : Given data : Height (h)= 1.0 m                     Width (b)= 1.75 m…

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Q: consider a large plane wall of thickness 0.21 m, thermal conductivity k=1.2 w/m-c and surface area…

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Q: A 15 cm x 20 cm hot surface at 85°C is to be cooled by attaching 4 cm long aluminum (k = 237 W/m-°C)…

A: The dimension of the hot surface is = 15 x 20 cmThe temperature of hot surface = 85 oCLength of fins…

Q: A supply of 50 kg of chicken at 6degC contained in a box is to be frozen to -18degC in a freezer.…

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Q: Electrically heated draw batch furnaces are commonly used in the heat treatment industry. Consider a…

A: Given data: Thickness, L = 20 mm K = 25 w/m* k T surr = 20 deg c = 293 K h = 10 w/m^2 * k Heat flux…

Q: Consider a furnace (as a plane wall) which has a thickness of 15 cm and a surface area of 1 m?. The…

A: Given: The thickness of the wall, L = 15 cm = 0.15 m The surface area of the wall, A = 1 m^2 The…

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.