A 25-cm-diameter black ball at 130C is suspended in air, and is losing heat to the surrounding
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A 25-cm-diameter black ball at 130°C is suspended in air, and is losing heat to the surrounding air at 25°C by convection with a heat transfer coefficient of 12 W/m2 · K, and by radiation to the surrounding surfaces at 15°C. The total rate of heat transfer from the black ball is
(a) 217 W
(b) 247 W
(c) 251 W
(d) 465 W
(e) 2365 W
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To find the total rate of heat transfer from the black ball we need to consider both convection and ...View the full answer
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Related Book For
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
Question Posted:
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