Electrical power is to be generated by installing a hydraulic turbine generator at asite 70 m below the free surface of a large reservoir that can supply water at 1500kg/s. The turbine converts power from the water to a mechanical power output of800 kW and the final electrical power generation is 750 kW. Calculate the efficiencyof the turbine, the generator and the combined plant.

Electrical power is to be generated by installing a hydraulic turbine generator at asite 70 m below the free surface of a large reservoir that can supply water at 1500kg/s. The turbine converts power from the water to a mechanical power output of800 kW and the final electrical power generation is 750 kW. Calculate the efficiencyof the turbine, the generator and the combined plant.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Consider a river flowing towarda lake at an average velocity of 5m/s at a rate of 450 m3/s at a location 90 m above the lake surface. Determine the power generation potential of the entire river at that location. (take density 1000 kg/m3 and g=9.8 m/s2) O A 358 MW O B) 496 MW Oa 403 MW O Di 465 MW O 319 MW
Given the headwater elevation and the tailwater elevation and the flow of a river, explain how you are going to determine its hydroelectric potential indicating all the losses encountered in the transfer of energy. You can provide illustrations indicating the system.
Electric power is to be generated by installing a hydraulic turbine—generator at a site 120 m below the free surface of a large water reservoir that can supply water steadily at a rate of 930 kg/s. If the mechanical power output of the turbine is 850 kW and the electric power generation is 770 kW, determine the turbine efficiency and the combined turbine— generator efficiency of this plant. Neglect losses in the pipes.
A power plant,having a Carnot efficiency, produces 1.00GW of electrical power from turbines that take in steam at 500K and reject water at 300K into a flowing river. the water downstream is warmer by delta T due to the output of the power plant. Determine the flow rate of the river.
There is a hot water source in New Delhi.Our plan is to use this heat source for heating and hot water supplies of a site of 50 hostels. The outlet temperature of the water from the source is 100°C. Calculate the power required for the pump used to pump the water to the surface. isentropic pump efficiency is 0.9
An oil-transfer pump uses 1 kW of power in transferring 5 kg/s of oil through a 3-cm-diameter pipe. The changes in kinetic and potential energies are essentially zero, and the process is adiabatic. Additionally, there is no appreciable temperature change in the oil, which has a density of 1500 kg/m³. Determine the change in pressure from inlet to exit.
A pump rated at 1800 W is used to transfer water from an open tank to another open tank. The surfaces of the two tanks are kept 20 m apart, vertically, while the mass flow of the water is 5 kg/s. Determine the efficiency of the pump
The calculated shaft work needed to pump water at 20°C is W;=-2,545 J/kg at a volumetric flow rate is Q= 0.48 m3/min. What is the pumping cost per day if the pump has an efficiency of 92%, n = 0.92, and an electric rate of P7.68/kWh?