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Chemical EngineeringQ&A LibraryA 4-in. schedule 80 steel pipe (ID = 3.826 in., OD = 4.5 in.) carries a heat-transfer fluid at 600 F and is covered with a 1/2 -in. thick layer of pipe insulation. The pipe is surrounded by air at 80 F. The vendor’s literature states that a 1-in. thick layer of the pipe insulation has an R-value of 3. Neglecting convective resistances, the resistance of the pipe wall, and thermal radiation, estimate the rate of heat loss from the pipe per foot of length.Start your trial now! First week only $4.99!*arrow_forward*

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A 4-in. schedule 80 steel pipe (ID = 3.826 in., OD = 4.5 in.) carries a heat-transfer fluid at 600 F and is covered with a 1/2 -in. thick layer of pipe insulation. The pipe is surrounded by air at 80 F. The vendor’s literature states that a 1-in. thick layer of the pipe insulation has an R-value of 3. Neglecting convective resistances, the resistance of the pipe wall, and thermal radiation, estimate the rate of heat loss from the pipe per foot of length.

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