Consider a horizontal 0 7 m wide and 0 85 m long plate in a room at 30C Top side of the plate is insulated while the bottom side is maintained at 0C The rate of heat transfer from the room air to the plate by natural convection is (a) 36 8 W (b) 43 7 W (c) 128 5 W (d) 92 7 W (e) 69 7 W (For air, us...

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Consider a horizontal 0.7-m-wide and 0.85-m-long plate in a room at 30C. Top side of the plate

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Consider a horizontal 0.7-m-wide and 0.85-m-long plate in a room at 30ºC. Top side of the plate is insulated while the bottom side is maintained at 0ºC. The rate of heat transfer from the room air to the plate by natural convection is
(a) 36.8 W

(b) 43.7 W

(d) 92.7 W

(e) 69.7 W
(For air, use k = 0.02476 W/m · K, Pr = 0.7323, v= 1.470 × 10^-5 m²/s)

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Heat And Mass Transfer Fundamentals And Applications

ISBN: 9780073398181

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Authors: Yunus Cengel, Afshin Ghajar

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Question Posted: Sep 16, 2023 04:35 AM

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Consider a horizontal 0.7-m-wide and 0.85-m-long plate in a room at 30C. Top side of the plate

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Heat And Mass Transfer Fundamentals And Applications

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