The heat transfer rate due to free convection from
Chapter 9, Problem 9.6(choose chapter or problem)
The heat transfer rate due to free convection from avertical surface, 1 m high and 0.6 m wide, to quiescentair that is 20 K colder than the surface is known. Whatis the ratio of the heat transfer rate for that situation tothe rate corresponding to a vertical surface, 0.6 m highand 1 m wide, when the quiescent air is 20 K warmerthan the surface? Neglect heat transfer by radiation andany influence of temperature on the relevant thermo-physical properties of air
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