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The indoor temperature of an oven can go up to 250 degrees Celsius. There is a...

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Mechanical Engineering

The indoor temperature of an oven can go up to 250 degreesCelsius. There is a 2 mm thick sheet metal material inside andoutside of the oven wall. There is a 10 mm insulation materialbetween the oven wall. It is desirable that this temperature shouldnot exceed 30 degrees Celsius in order not to damage the outside ofthe oven by hand. Find the amount of heat (W) discharged from thefurnace unit area and unit time and the energy consumed if thefurnace operates for 2 hours.
k_Insulation = 0.0.35 W / m.K
k_sheet metal = 40 W / m.K
h = 25 W / m ^ 2.K

Answer & Explanation Solved by verified expert
4.1 Ratings (476 Votes)
LetIndoor temperature of the oven Ti2500CThickness of sheet metal inside the oven L1 2 mm 0002 mThickness of insulation L2 10 mm 001 mThickness of sheet metal outside the oven L3 2 mm    See Answer
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