Hot coffee is contained in a cylindrical thermos bot-tle
Chapter 13, Problem 13.111(choose chapter or problem)
Hot coffee is contained in a cylindrical thermos bot-tle that is of length L?0.3 m and is lying on its side(horizontally). The coffee container consists of a glass flask ofdiameter D1?0.07 m, separated from an aluminumhousing of diameter D2?0.08 m by air at atmos-pheric pressure. The outer surface of the flask and theinner surface of the housing are silver coated to pro-vide emissivities of ?1??2?0.25. If these surfacetemperatures are T1?75?C and T2?35?C, what isthe heat loss from the coffee?
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