What is outside surface temperature of the tank and (b) the rate of heat transfer during the process?

Posted on 2016-04-13 18:42:00 in Engineering by SHAIMA

An iron tank, which is fitted with a freely moving piston, has a wall thickness of 40 cm, a surface 
area of 1 m2 
, and is painted from the outside with a white paint. The tank initially contains 0.1 
m3 
of saturated liquid refrigerant at 10 °C. Taking into consideration the thermal radiation effect 
and considering the surrounding air temperature to be 45 °C with a convective heat transfer 
coefficient of 10 W/m2 
.K, find (a) the outside surface temperature of the tank and (b) the rate of 
heat transfer during the process, (c) the amount of work done during the process and (d) how 
long it takes to completely evaporate the refrigerant.

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