Calculate the increase in the rate of heat transfer

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Reference no: EM131086011

A solution with a boiling point of 180°F boils on the outside of a 1-in. tube with a No. 14 BWG gauge wall. On the inside of the tube flows saturated steam at 60 psia. The convective heat transfer coefficients are 1500 Btu/(h ft2 °F) on the steam side and 1100 Btu/(h ft2 °F) on the exterior surface. Calculate the increase in the rate of heat transfer for a copper over a steel tube.

GIVEN

Tube with saturated steam on the inside and solution boiling at 180°F outside

Tube specification: 1 in. No. 14 BWG gauge wall

Saturated steam in the pipe is at 60 psia

Convective heat transfer coefficients

Steam side ( hci ) : 1500 Btu/(h ft2 °F)

Exterior surface ( hco ) : 1100 Btu/(h ft2 °F)

ASSUMPTIONS

The system is in steady state

Constant thermalconductivities

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Reference no: EM131086011

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