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A regenerative gas turbine with single stage compression and double stage expansion is used to generate power. Air enters the compressor at 100 kPa and 300 K, with a mass flow rate of 0.562 kg/s and is compressed to 400 kPa. All the power developed by the high pressure turbine is used to drive the compressor. The low pressure turbine provides the net output. Each turbine has an isentropic efficiency of 87 % and the temperature at the inlet to the high pressure turbine is 1200 K. The isentropic efficiency of the compressor is 80 %, and the regenerator effectiveness is 90 %. Taking into consideration the variations of specific heat with temperature, and adiabatic turbines, compressors and regenerators. No pressure drop for the flow through heat exchanger. Find temperatures at all states, net power output and thermal efficiency.
determine the work and heat transfer, each in kJ. sketch the process on p-v and T-s coordinates. Associate the work and heat transfer with areas on these diagrams.
an insulated rigid tank contains 2.1 kg of water at 150 degress c initially. at this state 1.49 kg of the water is in
a power generator burns natural gas consisting of 30 ethane 60 methane and the balance nitrogen. the gas undergoes
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saturated steam at 2 mpa is contained in a piston-cylinder device. the initial volume is 0.25 m3. heat is slowly
Calculate the average square distance between the particles and plot its ratio to the time step . This is the diffusion/dispersion coefficient.
Remember that velocity is a vector quantity so find the magnitude of the average velocity and the angle of average velocity from the horizon
a robotic wheeled vehicle that contains science instruments is used to study the geology of mars. the rover weighs 408
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Steam at 10bar and 0.95 dry flows at 130 m/sec in a pipe. It is throttled to 8 bar and the flow rate is 12 kg/sec. Assuming velocity in the pipe on the down stream side of the valve is 160 m/sec. Find the final condition of steam and the pipe diam..
air enters the compressor of an air-standard brayton cycle at 100kpa 300k with a volumetric flow rate of 5m3s. the
consider a combined gass steam power plant that has a net power output of 450 mw. the pressue ratio of the gas turbine
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