Physics, 09.10.2019 22:00, preguntassimples
In large gas-turbine power plants, air is preheated by the exhaust gases in a heat exchanger called the regenerator before it enters the combustion chamber. air enters the regenerator at 1 mpa and 550 k at a mass flow rate of 800 kg/min. heat is transferred to the air at a rate of 3200 kj/s. exhaust gases enter the regenerator at 140 kpa and 800 k and leave at 130 kpa and 600 k. treating the exhaust gases as air, determine (a) the exit temperature of the air and (b) the mass flow rate of exhaust gases. (
Answers: 1
Physics, 22.06.2019 03:00, emilypzamora11
If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?
Answers: 2
Physics, 22.06.2019 15:10, deidaraXneji
In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_
Answers: 3
In large gas-turbine power plants, air is preheated by the exhaust gases in a heat exchanger called...
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