Steam is leaving a pressure cooker whose operating pressure is 20 psia. It is observed that the amount of liquid in the cooker has decreased by 0.6 gal in 45 minutes after the steady operating conditions are established, and the cross-sectional area of the exit opening is 0.15 in2. Determine (a) the mass flow rate of the steam and the exit velocity, (b) the total and flow energies of the steam per unit mass, and (c) the rate at which energy is leaving the cooker by steam.

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Q: 1-Water vapor enters an adiabatic turbine at 6.5MPa pressure and 400 ° C temperature, with a mass…

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Q: Steam flows steadily through an adiabatic turbine. The inlet conditions the steam are 10 MPa, 450°C,…

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Q: Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa,…

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Q: Air enters a 28-cm diameter pipe steadily at 200 kPa and 20C with a velocity of 5 m/s. Air is heated…

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Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A: To find: The electrical power produced. Given: The seam enters the turbine at P1=8 MPa. The exit…

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A: Answer: The electrical power produced is 21507.3 kW.

Q: Refrigerant R-134a at 1.2 MPa and 75 °C is condensed to a saturated liquid in a condenser at…

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Q: In an open system, 500 kg/h of air is being compressed from 100 kPa at  280 K to 600 kPa and 400 K.…

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Q: The exhaust gas leaving an oil engine is passed through a heat exchanger which consist of tubes…

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Q: The compressed air requirements of a textile factory are met by a large compressor that draws in 0.6…

A: Given: The value of volumetric flow rate at the inlet is, Qin=0.6 m3s. The diameter of the…

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.