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Air at 110 kPa and 250 K is compressed steadily to 570 kPa and 400 K. The mass flow rate of air through the compressor is 0.03 kg/s. A heat loss of 16 kJ/kg occurs during the process. Assume changes in kinetic and potential energies are negligible. Determine the necessary power in kW to the compressor.
consider nitrogen gas contained in a piston-cylinder arrangement. the cylinder diameter is 150 mm. at the initial state
a model jet engine is shown with a series of processes at steady-state-steady-flow operation. air enters the 1.0 m
a pressure transducer that behaves as a second order system is used to monitor pressure fluctuations in a petrochemical
If 300 Kg of air is pumped into a previously empty 100 m^3 tank, and the temperature of the air in the tank is 25 deg C, then what is the pressure in the tank in N/m^2?
when the rubber bands of the sling shot are pulled back each rubber band is stretched 3 in. the natural length and the
problem i. steam at 5.0 mpa 500 degrees c enters an insulated turbine operating at steady state with a mass flow rate
consider a steam rankine cycle with superheat. the maximum temperature and pressure are 540 c and 60 bar and the
The entrance is inward projecting. What flow will be expected if the gate valve is one-half open?
a fuel cell stack consists of 75 fuel cells arranged in series each one 12cm2 in size. the stack operates at 80.c and
water occupies the bottom 0.8 m of a cylindrical tank. on top of the water is 0.3 m of kerosene which is open to the
water backs up behind a concrete dam as shown. leakage under the foundation gives a pressure distribution under the dam
steam enters a steady flow turbine at 30mpa 1000degc with a flow rate of 10kgs. thirty percent of the inlet mass of
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