Engineering, 28.11.2019 00:31 andrespeerman
Asquare aluminum plate 5 mm thick and 200 mm on a side is heated while vertically suspended in quiescent air at 40c. (a) determine the average heat transfer coefficient for the plate when its temperature is 15c by two methods: using results from the similarity solution to the boundary layer equations, and using results from an empirical correlation. (b) calculate the convective heat transfer loss to the air from both surfaces (c) calculate the net radiation heat loss to a very large environment at 35c. assume it is a two surface enclosure and all surfaces are gray and diffuse. e=1.0. do you think you can neglect the radiation heat loss?
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