Q.1 A 0.2-m-long and 25-mm-thick vertical plate (k = 1.5 W/m-K) separates the hot water from the cold air at 2°C. The plate surface exposed to the hot water has a temperature of 100°C, and the surface exposed to the cold air has an emissivity of 0.73. Determine the temperature of the plate surface exposed to the cold air (Ts, c). Hint: The Ts.c has to be found iteratively. Start the iteration process with an initial guess of 51°C for the Tsc Hot water Plate, & 0.73 Cold air T 2°C 100°C TS.C surr

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Author:Kreith, Frank; Manglik, Raj M.
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Chapter6: Forced Convection Over Exterior Surfaces
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Q.1 A 0.2-m-long and 25-mm-thick vertical plate (k = 1.5 W/m-K) separates the hot water from the cold air at 2°C.
The plate surface exposed to the hot water has a temperature of 100°C, and the surface exposed to the cold air has an
emissivity of 0.73. Determine the temperature of the plate surface exposed to the cold air (Ts, c). Hint: The Ts.c has
to be found iteratively. Start the iteration process with an initial guess of 51°C for the Tsc
Hot water
Plate, & 0.73
Cold air
T
2°C
100°C
TS.C
surr
Transcribed Image Text:Q.1 A 0.2-m-long and 25-mm-thick vertical plate (k = 1.5 W/m-K) separates the hot water from the cold air at 2°C. The plate surface exposed to the hot water has a temperature of 100°C, and the surface exposed to the cold air has an emissivity of 0.73. Determine the temperature of the plate surface exposed to the cold air (Ts, c). Hint: The Ts.c has to be found iteratively. Start the iteration process with an initial guess of 51°C for the Tsc Hot water Plate, & 0.73 Cold air T 2°C 100°C TS.C surr
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