Engineering, 11.07.2019 02:40 kyn9919

Niagara falls is used to provide electricity to 4.8 million homes between canada and the united states. on average, the water falls 96 m to the water turbines, which rotate to provide electricity. approximately 2, 825,000 kg/s of water flows into the combined generating stations. the total electrical power of the stations is 2.525 x 100 kw. determine (a) the average mechanical- to-electrical conversion efficiency of the turbine-generators and (b) the rate of energy loss in the system. assume the inlet and outlet pressure is atmospheric (101.325 kpa) and the water inlet and outlet speed is 10 m/s.

Answers: 2

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

Answers: 3

Answer

Engineering, 04.07.2019 18:20

Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency

Answers: 1

Answer

You know the right answer?

Niagara falls is used to provide electricity to 4.8 million homes between canada and the united stat...

Questions