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A wall surface on a house is 30°C with an emissivity of ?
Chapter 3, Problem 67HP(choose chapter or problem)
QUESTION:
Problem 67HP
A wall surface on a house is 30°C with an emissivity of ε = 0.7. The surrounding ambient air is at 15°C with an average emissivity of 0.9. Find the rate of radiation energy from each of those surfaces per unit area.
Questions & Answers
QUESTION:
Problem 67HP
A wall surface on a house is 30°C with an emissivity of ε = 0.7. The surrounding ambient air is at 15°C with an average emissivity of 0.9. Find the rate of radiation energy from each of those surfaces per unit area.
ANSWER:
Solution
Step 1 of 3
We need to find out the rate of radiation energy from each of those surfaces per unit area.