Engineering, 06.10.2019 02:30, krazyykay
Acombined cycle power plant has a net power output of 287 mw. air enters the compressor of the brayton cycle at 280 k and 100 kpa. the pressure ratio is 21, the turbine inlet temperature is 1600 k and the gases leaving the turbine are used to heat the steam of the rankine cycle to 500oc and 4 mpa. the combustion gas leaves the heat exchanger (hrsg) at 400 k and the condenser pressure is 10 kpa. the isentropic efficiency of the compressor is 90%, the gas turbine efficiency is 91%, the steam turbine efficiency is 94% and the pump efficiency is 68%. determine: a. heat input in the combustion chamber, qin (in kw) b. the overall efficiency of the cycle.
Answers: 1
Engineering, 04.07.2019 18:10, sarahgrindstaff123
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
Engineering, 04.07.2019 18:10, tobyhollingsworth178
Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer
Answers: 2
Engineering, 04.07.2019 18:20, safiyabrowne7594
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
Acombined cycle power plant has a net power output of 287 mw. air enters the compressor of the brayt...
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