Wing Mill Dual with Solar Cell- Electricity Generation – MAS 4090
Wind power is a major supporting column of tomorrow’s renewable electricity supply. Since wind power was first used to generate electricity in the early 1900s, its utilisation and growth has been staggering, particularly during the last ten years.
Driven by climate change concerns, nations all around the world have set and pursued aggressive targets to reduceCO 2 emissions by installing renewable energy generation facilities.
Of the available renewable energy technologies, wind power has been the most prevalent to date because of its lower costs, its proven technological status, the abundance of wind resources and lack of undeveloped hydro-electric resources. Besides reducing CO2 emissions, renewable energy reduces pollution from particulate emissions and toxic emissions such as SOx and NOx. Renewable clean energy sources such as wind and solar power have been the focal point in the transition to a healthy, efficient and less polluted world.
Wind turbines operate on a simple principle. The energy in the wind turns two or three propeller- like blades around a rotor. The rotor is connected to the main shaft, which rotates within a stator surrounded by copper wire loops. Electromagnetic induction is created and electricity is generated.
A blade acts much like an airplane wing. When the wind blows, a pocket of low-pressure air forms on the downwind side of the blade. The low – pressure air pocket then pulls the blade toward it, causing the rotor to turn. This is called lift. The force of the lift is actually much stronger than the wind’s force against the front side of the blade, whichis called drag. The combination of lift and drag causes the rotor to spin like a propeller, and the turning shaft spins a generator to make electricity.