3. A wind turbine has a blade length of 25 m. In a given day, average speed ofwind for 7 hours is 9 m/s, average speed of wind for another 6 hours is 10 m/sand wind speed is not sufficient to rotate wind turbine for remaining time in aday. Take Air density g = 1.23 kg/m.Determine the following:a) Maximum possible power output of wind turbine for 7 hoursb) Maximum possible power output of wind turbine for 6 hoursc) Maximum possible energy output of turbine in a given day

Answered: Image /qna-images/answer/e9eefa20-2e31-48fe-a3cf-8105d268abda.jpg

3. A wind turbine has a blade length of 25 m. In a given day, average speed of wind for 7 hours is 9 m/s, average speed of wind for another 6 hours is 10 m/s and wind speed is not sufficient to rotate wind turbine for remaining time in a day. Take Air density e = 1.23 kg/m. Determine the following: a) Maximum possible power output of wind turbine for 7 hours b) Maximum possible power output of wind turbine for 6 hours

3. A wind turbine has a blade length of 25 m. In a given day, average speed of wind for 7 hours is 9 m/s, average speed of wind for another 6 hours is 10 m/s and wind speed is not sufficient to rotate wind turbine for remaining time in a day. Take Air density e = 1.23 kg/m. Determine the following: a) Maximum possible power output of wind turbine for 7 hours b) Maximum possible power output of wind turbine for 6 hours

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.15P: Let a voltage source v(t)=4cos(t+60) be connected to an impedance Z=230. (a) Given the operating...

See similar textbooks

Similar questions

Let a voltage source v(t)=4cos(t+60) be connected to an impedance Z=230. (a) Given the operating frequency to be 60 Hz, determine the expressions for the current and instantaneous power delivered by the source as functions of time. (b) Plot these functions along with v(t) on a single graph for comparison. (c) Find the frequency and average value of the instantaneous power.
The following data are given for a wind turbine: Blade length, l = 45 m Wind speed, U = 12 m/sec Air density, r = 1.25 kg/m3 Find the following: a) Total wind power in MW that can be extracted b) Maximum wind turbine power in MW that can be generated c) Actual wind turbine power in MW if the power coefficient is 0.38 d) Blade tip speed in m/s if the rotational speed is 7 rpm e) Tip speed ratio
The data for a wind turbine is given below: Wind speed = 14 meters/sec, Length of blade = 10 meter Refer to the above wind turbine choose the correct statement a. The wind rotor swept area is 40square meters. b. The wind rotor swept area is 314 square meters. c. The wind rotor swept area is 31.4 square meters. d. The wind rotor swept area is 62.4 square meters.
Estimate the AEP for a 3-MW wind turbine in a wind regime that has a CF= 30%. For this turbine explain why the increase of wind speed to levels greater than 25 m/s generates less electrical power compared to wind speeds around 11 m/s
Estimate the total land requirements for wind farms generating an amount of electric energy equal to 2008 US annual consumption (4.4 × 1012 kWeh) if individual units are rated at 2 MWe, have a rotor with a 100 m diameter, and are spaced 3 diameters side to side, 10 diameters front to rear in giant contiguous wind farms having an annual average capacity factor of 25%. Compare the required area to that of North and South Dakota (combined land area of 145,000 square miles), which have some of the best US wind resources. Discuss the factors that would favor or impede the practical implementation of a Grand Midwestern Wind Farm plan to provide the bulk of US electric energy by the year 2050.
C. A small wind turbine of blade diameter 185 cm is subjected to upwind velocity of 11.7 m/s and downwind velocity of 9.3 m/s. Calculate the power and energy produced by the turbine per year. Density of wind is 1.25 Kg/m3.
A small wind turbine with a blade of diameter 205 cm is subjected to velocity 11.3 m/s . Calculate the power and energy produced by the turbine per year. Efficiency is 31% and density of air is 1.3 Kg/m3
A 400 kW, three-blade wind turbine is designed to deliver power at a wind speed of 15 m/s. The blades have a depth of 14 m, and the rated speed of the turbine is 48 rpm. The air density is 1.226 kg/m3. Calculate (a) area swept out by the turbine (b) wind power available to drive the turbine (c) capacity factor of the turbine
15.2 Estimate the total land requirements for wind farms generating an amount of electric energy equal to 2008 US annual consumption (4.4 × 10 12 kW e h) if individual units are rated at 2 MW e , have a rotor with a 100 m diameter, and are spaced 3 diameters side to side, 10 diameters front to rear in giant contiguous wind farms having an annual average capacity factor of 25%. Compare the required area to that of North and South Dakota (combined land area of 145,000 square miles), which have some of the best US wind resources. Discuss the factors that would favor or impede the practical implementation of a Grand Midwestern Wind Farm plan to provide the bulk of US electric energy by the year 2050.
Consider a wind machine designed to deliver its rated power at the average velocity fora given wind spectrum. It will be marketed for sites having wind velocity spectra thathave the same annual average velocity but with Weibull statistics ranging from k = 3/2to 5/2.a. Calculate the ratio of maximum to minimum annual average on-site wind poweravailable for exploitation for this range of wind fields.b. What additional assumptions are necessary if the power actually produced is tobe in the same ratio as in (a) above?
A hydroelectric plant has a reservoir area 28.5 x 10^5 sq. meters and of capacity 5 million cubic meters. The net head of water at the turbine is 60 m. If the efficiencies of turbine and generator are 85% and 95% respectively, calculate the total energy in kWh that can be generated from this station. If a load of 25,000 kW has been supplied for 6 hours, find the fall in reservoir.
The equation of characteristics of the system is as follows. 1. Determine the stability of this system, and write the reason. 2. Write the number of poles this system has in the right quadrant and the reason.