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Question: a nominal 1in diameter schedule 40 mild steel pipe is...

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  1. A nominal 1-in diameter schedule 40 mild steel pipe is covered with 2 inches of glass wool insulation (k = 0.023 BTU/hr.ft.oF). The outside wall temperature of the pipe is measured as 100oC. The surface T of the insulation is measured as 25oC. Estimate the heat loss from the pipe per foot of length and the temperature at the inside wall of the pipe.       (Ans.: q/L ~ 11.12 BTU/hr; Ti ~ 211.9oF)
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