A steam generator consists of a bank of stainless steel (k = 15 W/m K) tubes

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A steam generator consists of a bank of stainless steel (k = 15 W/m ∙ K) tubes having the core configuration of figure and an inner diameter of 13.8 mm. The tubes are installed in a plenum whose square cross section is 0.6 m on a side, thereby providing a frontal area of 0.36 m2. Combustion gases, whose properties may be approximated as those of atmospheric air, enter the plenum at 900 K and pass in cross flow over the tubes at 3 kg/s. There are 11 rows of tubes in the gas flow direction. If saturated water at 2.455 bar experiences boiling in the tubes, what is the gas exit temperature? A convection coefficient of 10,000 W/m2 ∙ K is associated with boiling in the tubes.

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Related Book For  answer-question

Fundamentals of Heat and Mass Transfer

ISBN: 978-0471457282

6th Edition

Authors: Incropera, Dewitt, Bergman, Lavine

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