Calculate the power available in the wind and the rotor power when the blade length for the turbine is given 42 m and the wind speed is 11 m/s. The power coefficient of blades is 0.4, generator efficiency is 85 % while gear box efficiency is 0.8, air density is 1.225 kg/m³.

Calculate the power available in the wind and the rotor power when the blade length for the turbine is given 42 m and the wind speed is 11 m/s. The power coefficient of blades is 0.4, generator efficiency is 85 % while gear box efficiency is 0.8, air density is 1.225 kg/m³.

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter10: Wind Energy

Section: Chapter Questions

Problem 16P

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Concept explainers

Wind Energy

Wind energy is a renewable energy source that is used to generate electricity by wind power. The term, wind power, means utilization of kinetic energy of wind to generate electricity. Wind energy is termed renewable source energy because it can never be exhausted. There are other renewable energy sources, such as solar energy, geothermal energy, hydropower energy, and so on. All of them contribute to power the thermal energy stations to generate electricity.

Question

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Calculate the power available in the wind and the
rotor power when the blade length for the turbine is
given 42 m and the wind speed is 11 m/s. The
power coefficient of blades is 0.4, generator
efficiency is 85 % while gear box efficiency is 0.8, air
density is 1.225 kg/m³.
Power available in the wind
Power available in the rotor

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