3. Please calculate the annual electricity production of a wind farm with 20 turbines. The annualmean wind speed is 7 m/s and diameter of the blades is 20 m. If we assume powerconsumption of a person is 3,000 kWh, about how many people will this energy support?Annual electricity production (KWh) = K Vm³ At TWhere:---K = 3.2 (factor based on turbine performance)Vm= annual mean wind speed (m/s)At = swept area of turbine (m2)T = number of turbinesSuitable for medium- to large-scale wind turbines (> 200 m2 swept area)

Answered: Image /qna-images/answer/ea739271-7add-4684-ac00-cc799e219ce5.jpg

alculate the annual electricity production of a wind fa nd speed is 7 m/s and diameter of the blades is 20 m. otion of a person is 3,000 kWh, about how many peop lectricity production (KWh) = K Vm³ At T - K = 3.2 (factor based on turbine performance) Vm = annual mean wind speed (m/s) At = swept area of turbine (m2) T= number of turbines

alculate the annual electricity production of a wind fa nd speed is 7 m/s and diameter of the blades is 20 m. otion of a person is 3,000 kWh, about how many peop lectricity production (KWh) = K Vm³ At T - K = 3.2 (factor based on turbine performance) Vm = annual mean wind speed (m/s) At = swept area of turbine (m2) T= number of turbines

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

EX.1 An axial flow pump with an impeller rotor diameter of 30 cm handles water at a rate of 2.7 m*/minute running at 1500 rpm. The energy input is K o W 125 J/kg and Total to Total efficiency is 0.75. If a geometrically similar pump has a diameter of 20 cm running at 3000 rpm, find its: i) Flow rate ii) input power.
a) In an open vessel, a certain volume V of water is perfectly agitated by means of an impeller 20 cm in diameter D. Consider a case in which the impeller steadily rotates at 150 RPM (=revolutions per minute) Draw up a proper energy balance to find how temperature changes with time as a result of the power input øw, also named P, by the revolving impeller. This P is given by the formula P = 3.5 PN³DS in which N denotes the impeller speed in revolutions per second. Calculate P. When V = 120 litre and the specific heat of water amounts to 4.2 kJ/kgK, calculate the temperature increase of the water after one hour of stirring.
1. The wind turbine gives the following data: Blade length, I-52 m, Wind speed, v= 12 m/s, Air density, p=1.23 kg/m, Power Coefficient, C,- 0.4, Calculate
EX.1 An axial flow pump with an impeller rotor diameter of 30 cm handles water at a rate of 2.7 m?/minute running at 1500 rpm. The energy input is e ——T e T ‘a 125 J/kg and Total to Total efficiency is 0.75. If a geometrically similar pump has a diameter of 20 cm running at 3000 rpm, find its: i) Flow ratei) input power.
A petrol engine has mechanical efficiency 0.8 and lower calorific value of 44.2 MJ / kg. The engine bore 0.06 m and stroke of 0.08 m. The engine speed of 2000 rpm. The consumption of fuel about 8 liter / h and the brake weight is 200 N. Take the density of fuel as 750 kg / m3 and torque arm of 400 mm.Find the specific fuel consumption. *
The compressed air network of a foundry with a volume V = 30 m³ is filled by a compressor in 47 = 30 min. Therefore the state of the air changes from pi = 0.15 MPa, t₁ = 25 °C to p2 = 1.0 MPa at constant temperature. a) Which mass of air Am is fed into the compressed air network? b) Which air volume flow Vo in the intake state of the compressor (po = 1000 hPa, to = 10 °C) is required for filling? The air mass flow required for a pneumatic hammer is subsequently provided in state 3 from the compressed air network. The pressure is throttled adiabatically to p3= 0.5 MPa, the air volume flow is V3 = 1.4 m³/min. c) What is the air mass flow m required by the hammer? d) What power P34 does the adabatic pneumatic hammer deliver, if a temperature t4 15 °C is measured at the air outlet?
What is the turbine output of 100m head and delivering 1 cu. m/ sec in a hydro electric power plant if turbine efficiency is 88%?
A centrifugal fan is delivering 2000 cfm of air at a total pressure differential of 2 in.w. The fan has an outlet area of 0.85 ft and requires 1.25 hp shaft input power. The fan speed is 1000 rpm. If the fan motor efficiency 85%, calculate: a) The total fan output power (hp) b) The fan total efficiency c) The fan static pressure, in.w d) The fan static efficiency e) The motor power, kW f) If the fan speed is reduced to 800 rpm, compute; 1. The capacity (cfm) II. The static ant total pressures, in.w. ill. The required power (shaft power), hp
A wind turbine gives the following data: Blade length= 55.5 m. Wind speed = 11 m/s Air density = 1.227 Kg/m3 Power coefficient = 0.55 Assuming equal efficiencies for gearbox and generator, If the Power output from wind turbine, P is 2.1 MW, then find a) Rotor Power Output, P- in M (* b) Wind Power, Pw in MW (: C) Efficiency of Generator Rotor Power Output, Pr in MW
Find the displacement, velocity, kinetic energy, potential energy and momentum of an objęct, taking www. wwwww wwww www. mon mmwm w into account that F = ma and F = -kx. wwww w
A turbine model has the following characteristics: Effective power: 13, 6 kW; Rotor Diameter: 0.38 meters, Flow: 0.34 ms, Energy Jump: 26.5 J / Kg and 3 R.P.S. rotation It is desired to construct a geometrically similar 1.20 meter diameter turbine that provides a power on the 656 kW axis, we ask: to calculate and justify its answers: a) the specific rotation; b) the unit quantities (rotation, flow and power); c) the rotation, flow and power of the model (bi-unit quantities).
...Determine the power generated in MW by the hydroelectric plant with the following given: Head water level: 120 m Tail water level: 46 m Head loss: 4 m Flowrate: 66 m^3/s Evaporation losses: 16 % Generation Efficiency: 94 % Use two decimal places in the final answer.