Two 1.5-m-square, parallel flat plates are 30 cm apart. Plate A 1 is maintained at a temperature

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Two 1.5-m-square, parallel flat plates are 30 cm apart. Plate A1 is maintained at a temperature of 1100 K and A2 at 500 K. The emissivities of the plates are 0.5 and 0.8, respectively. Considering the surroundings that are black at 0 K and including multiple interreflections, determine 

(a) The net radiant exchange between the plates

(b) The heat input required by surface A1 to maintain its temperature. The outer-facing surfaces of the plates are adiabatic

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Principles Of Heat Transfer

ISBN: 9781305387102

8th Edition

Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn

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