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###### 7. Consider a car in a parking lot. The wall temperature of the parking lot (Tsur) is 68 °C. The ...

7. Consider a car in a parking lot. The wall temperature of the parking lot (Tsur) is 68 °C. The car can be treated as a single surface and its heat loss through the ground is negligible. The temperature of the car (Ts) is 45 °C and the emissivity is 0.8. The convection coefficient between the car and ambient air is 10 Wm2K and the ambient air temperature is 30 °C. If the surface area of the car is 6 m2, what is the heat rate absorbed by the car due to irradiation? sur T,-45 °C T-30 °C

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