A 2-m3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 300°C. Determine the mass of the steam that has entered and the pressure of the steam in the supply line.

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A: Given  Volume, V1 =0.4m3 Pressure, P1 = 400 kPa               P2 = 200 kPaFind  Heat transfer, Q

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Q: A 15 liter rigid bottle contains 15 kg of the refrigerant R-134A and it is at a temperature of 20°C.…

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Q: the gage pressure of an automobile tire is measured to be a 210kPa before a trip and 220kPa after a…

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Q: 10 kg/s of air enters the turbine at a pressure of 120 MPa and 910 K. The air expands Isentropically…

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Q: A 10-ft3 vessel of hydrogen at a pressure of 305 psia is vigorously stirred by paddles until the…

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Q: A 0.8-m3 rigid tank contains nitrogen gas at 600 kPa and 300 K. Now the gas is compressed…

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Q: A rigid, well-insulated tank is initially empty. The tank is kept connected by means of a valve to a…

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Q: A 12-ft3 tank contains oxygen at 15 psia and 80◦F. A paddle wheel within the tank is rotated until…

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Q: A rigid vessel contains 5 kg of wet steam at 0.4 MPa. After the addition of 9585 kJ the steam has a…

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Q: In a gasoline engine, the cylinder conditions are 1.2 MPa and 450°C before the combustion and 1900°C…

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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.