A stone wall has a temperature of 60°C and an emissivity of 0.4 and it sees the night sky at 3K. The convection coeficient is t0 W/m2-K and the air temperature is 5°C. What is the total heat flux via convection and radiation? 520 W/m? 670 W/m? 1010 W/m2 830 W/m?

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A stone wall has a temperature of 60°C and an emissivity of 0.4 and it sees the night sky at 3K. The convection coeficient is 10
W/m2-K and the air temperature is 5°C. What is the total heat flux via convection and radiation?
520 W/m?
670 W/m?
1010 W/m2
O 830 W/m2
Transcribed Image Text:A stone wall has a temperature of 60°C and an emissivity of 0.4 and it sees the night sky at 3K. The convection coeficient is 10 W/m2-K and the air temperature is 5°C. What is the total heat flux via convection and radiation? 520 W/m? 670 W/m? 1010 W/m2 O 830 W/m2
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