As shown in the figure, a 300-ft³ tank contains 25 lb of H20 initially at 30 lbf/in?. The tank is connected to a large steam line carrying steam at 200|lbf/in?, 450°F. Steam flows into the tank through a valve until the tank pressure reaches p2 = 140 lbf/in? and the temperature is 400°F, at which time the valve is closed. Steam at Tank 200 lbf/in.2, Valve |(1) Initially: 30 lbfin.?, mı = 25 lb |(2) Finally: P, lbfin.?, 400°F. 450°F (1) Determine the amount of mass that enters the tank, in Ib, and the heat transfer to the tank from its surroundings, in Btu.

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.