Engineering, 05.11.2019 02:31 cchave9563
Air enters the compressor of a regenerative air-standard brayton cycle with a volumetric flow rate of 100 m3/s at 0.8 bar, 280 k. the compressor pressure ratio is 20, and the maximum cycle temperature is 1950 k. for the compressor, the isentropic efficiency is 92% and for the turbine the isentropic efficiency is 95%. for a regenerator effectiveness of 86%, determine: (a) the net power developed, in mw. (b) the rate of heat addition in the combustor, in mw. (c) the percent thermal efficiency of the cycle.
Answers: 3
Engineering, 04.07.2019 16:10
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
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Engineering, 04.07.2019 18:10
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
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Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
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Engineering, 04.07.2019 19:10
Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?
Answers: 3
Air enters the compressor of a regenerative air-standard brayton cycle with a volumetric flow rate o...
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