An astronaut is at work in the service bay of a spacecraft and is surrounded by walls at -100oC. The outer surface area of the suit is 3m2. The suit has an emissivity of 0.05. Calculate the rate of heat loss when the suit’s outer temperature is 0oC How much food the astronaut has to eat to maintain the level of heat loss?
An astronaut is at work in the service bay of a spacecraft and is surrounded by walls at -100oC. The outer surface area of the suit is 3m2. The suit has an emissivity of 0.05. Calculate the rate of heat loss when the suit’s outer temperature is 0oC How much food the astronaut has to eat to maintain the level of heat loss?
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter9: Heat Transfer With Phase Change
Section: Chapter Questions
Problem 9.34P
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•An astronaut is at work in the service bay of a spacecraft and is surrounded by walls at -100oC. The outer surface area of the suit is 3m2. The suit has an emissivity of 0.05.
Calculate the rate of heat loss when the suit’s outer temperature is 0oC
How much food the astronaut has to eat to maintain the level of heat loss?
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