Consider a 3 m high rectangular enclosure consisting of two surfaces separated by a 0 1 m air gap at 1 atm If the surface temperatures across the air gap are 30 deg C and 10 deg C, determine the ratio of the heat transfer rate for the horizontal orientation (with hotter surface at the bottom) to that for vertical orientation 30C 10C Alr 10C 3 m 0 1 m 0 1 m Alr 30C 3 m

Question: Consider a 3-m-high rectangular enclosure consisting of two surfaces separated by a 0.1-m air gap at 1 atm. If the surface temperatures across the air

Consider a 3-m-high rectangular enclosure consisting of two surfaces separated by a 0.1-m air gap at 1 atm. If the surface temperatures across the air gap are 30°C and €“10°C, determine the ratio of the heat transfer rate for the horizontal orientation (with hotter surface at the bottom) to that for vertical orientation.

30°C -10°C Alr -10°C 3 m +0.1 m- 0.1 m Alr 30°C 3 m

30C -10C Alr -10C 3 m +0.1 m- 0.1 m Alr 30C 3 m

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