An investment cost for the wind power system is RM 5000 with the annual maintenance costs are RM 200. If the annual energy output of a connected wind turbine with a diameter of 30 m, a hub height of 95 m. Reported that its annual energy output is equal to 400 kWh at the average wind speed is 7.5 m/s. Calculate the efficiency of the built turbine if the air density is equal to 0.602 kg/m³. Also, by assuming that the average price the wind turbine owner pays to utility is RM 25 ct/kWh, and by considering that a technical life time of the wind turbine is 20 years, calculate the loss or profit of the wind power system.

An investment cost for the wind power system is RM 5000 with the annual maintenance costs are RM 200. If the annual energy output of a connected wind turbine with a diameter of 30 m, a hub height of 95 m. Reported that its annual energy output is equal to 400 kWh at the average wind speed is 7.5 m/s. Calculate the efficiency of the built turbine if the air density is equal to 0.602 kg/m³. Also, by assuming that the average price the wind turbine owner pays to utility is RM 25 ct/kWh, and by considering that a technical life time of the wind turbine is 20 years, calculate the loss or profit of the wind power system.

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

Considering the wind speed of 5 m/s, air density of 1 kg/m3, exponentfactor is 0.20 and turbine diameter of 100 m:a. Calculate the turbine electrical power considering the maximumBitz limit,b. The original wind speed was taken at a height of 10 m,calculate the turbine power if it is now installed at 50 m height.c. In what condition a capacity factor of 73% can be reached bythis turbine.
A proposed wind power plant in Batangas is designed to have a power generated output of 30MW. A propeller turbine is to be used. Survey showed that Batangas City has an average airvelocity of 10km/hr. A power coefficient of 0.4 is used and an impeller diameter is assumed notmore than 10 m. Determine the theoretical wind power output.
If the actual draft required for a furnace is 6.239 cm of water and the frictional losses in the stack are 15% of the theoretical draft, calculate the required stack height in meters, the velocity of flue gas, and the diameter of the stack for 43.9 kg/s of flue gas produced. Assume that the flue gas has an average temperature of 149 ℃ and MW of 30. Assume an air temperature of 21 ℃.
A backward-swept centrifugal fan develops a pressure of 80 mm of water gauge. It has an impeller diameter of 0.89 m and runs at 720 rpm. The blade angle at the tip is 39° and the width of the impeller is 0.1m. Assuming a constant radial velocity of 9.15 m/s and density of air as 1.2 kg/ m3 , determine the fan efficiency, discharge and power required.
In Batangas, one of its power plant has been thoroughly monitored for a possible conversion into a wind power plant. A propeller wind turbine is to be used. Survey showed that Batangas City has an average air velocity of10km/hr at 30 . The existing power plant has an output of 30MW. For the proposed wind power, the mechanical electrical efficiency is 70%. And the impeller diameter is assumed not more than 10m. Determine the following:a. Theoretical Wind Power Outputb. Electrical Power Outputc. Number of turbines to be installed
The average wind speed at a proposed HAWT wind farm site is 12.5 m/s. The power coefficient of each wind turbine is predicted to be 0.41, and the combined efficiency of the gearbox and generator is 92 percent. Each wind turbine must produce 2.5 MW of electrical power when the wind blows at 12.5 m/s. (a) Calculate the required diameter of each turbine disk. Take the average air density to be ? = 1.2 kg/m3 . (b) If 30 such turbines are built on the site and an average home in the area consumes approximately 1.5 kW of electrical power, estimate how many homes can be powered by this wind farm, assuming an additional efficiency of 96 percent to account for the powerline losses.
To avoid the bulky tower and impeller and generator inthe HAWT of the chapter-opener photo, we could insteadbuild a number of Darrieus turbines of height 4 m anddiameter 3 m. (a) How many of these would we need tomatch the HAWT’s 100 kW output for 15 m/s wind speedand maximum power? (b) How fast would they rotate?Assume the area swept out by a Darrieus turbine is twothirdsthe height times the diameter.
Estimate the amount of power generated by a wind turbine having a powercoefficient of 0.37 given the annual average wind speed:Rotor diameter = 125 mCenter of rotor at an elevation 160 m above the surface level.Location: Oklahoma City, OK
Asap; An impulse turbine is used to produce hydroelectric power. The average radius of the Pelton wheel is 2.0 m, and the jet velocity is 103 m/s from a nozzle of exit diameter equal to 0.318 m. The turning angle of the buckets is 165°. Take the density of water to be 998 kg/m^3. Calculate the ideal shaft power in MW.
A large turbine is rated at 2500 kW at standard conditions (0°C and 101.3 kPa). What would be its rated power at the same rated wind speed if the temperature were 20°C and the turbine was located at 1500 m above sea level.
Consider two identical wind turbines with a hub height of 40 m, one located in flat agricultural land and one located above a forest. What is the relative output power for the two turbines if the wind velocity is 10 m/s at a height of 100 m in both cases? Pagricultural/Pforest = ?
How long should a rotor blade of a wind turbine be if it is designed to produce 10 kW and the prevailing wind speed is about 50 kph? Assume that air density is 1.20 kg/m3.