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Problem 1. A 0.5-m-long thin vertical plate is subjected to uniform heat flux on one side, while the other side is exposed to cool air at 5°C. The plate surface has an emissivity of 0.73, and its midpoint temperature is 55°C. Determine the uniform heat flux on the plate surface accounting for natural convection and radiation, assuming the air temperature (T-) and surrounding surface temperatures (Tsurr) are equal. Uniform heat flux Plate, e = 0.73 Cool air 5°C

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