Engineering, 26.03.2021 03:20 kayleahwilliams6
A circular sheet metal duct carries refrigerated air to a cold storage room for apples. The duct itself is 300 mm in outer diameter. The duct wall thickness is 0.6 mm. To reduce the heat gain from the surrounding air, we need to wrap the duct with insulation. The flowing air maintains the inner surface of the duct at 0 C. The outer surface temperature of insulation would be maintained at 25 C by the room air. Thermal conductivity of the sheet metal is 100 W/m-K and that of insulation is 0.04 W/m-K. Assuming the heat transfer to be as steady state, what thickness of insulation should be put on the duct to keep the rate of heat gain by the refrigerated air per meter
Answers: 2
Engineering, 04.07.2019 18:20, kodyclancy
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
Answers: 2
A circular sheet metal duct carries refrigerated air to a cold storage room for apples. The duct its...
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