Calculate the rate of heat loss

Reference no: EM131514999

Question: A standard 1 in. Schedule 40 iron pipe carries saturated steam at 250°F. The pipe is lagged (insulated) with a 2-in. layer of 85 percent magnesia, and outside this magnesia layer there is a 3-in. layer of cork.

The inside temperature of the pipe wall is 249OF, and the outside temperature of the cork is 90°F. Calculate

(a) the rate of heat loss from 100 ft of pipe, in Btuh, and

(b) the temperatures at the boundary between metal and magnesia and between magnesia and cork.

Reference no: EM131514999

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