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13.43 Heat transfer by radiation occurs between two large parallel plates, which are maintained at temperatures T, and T,, with T, > T,. To reduce the rate Materials to be

dried cover the base of the oven while the wall is maintained at 1200 K. What is the drying rate per unit length of the oven (kg/s · m) if a water-coated layer of material is maintained at 350 K during the drying process? Black body behavior may be assumed for the water surface and the oven wall.

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