Presentation wind energy

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Presentation wind energy

  1. 1. To calculate the electrical annual production of a wind generator
  2. 2. Theory• Wind Energy and Wind PowerWind is a form of solar energy. Winds are caused by the unevenheating of the atmosphere by the sun, the irregularities of the earthssurface, and rotation of the earth. Wind flow patterns are modified bythe earths terrain, bodies of water, and vegetative cover. This windflow, or motion energy, when "harvested" by modern windturbines, can be used to generate electricity.• How Wind Power Is GeneratedThe terms "wind energy" or "wind power" describe the process bywhich the wind is used to generate mechanical power or electricity.Wind turbines convert the kinetic energy in the wind into mechanicalpower. This mechanical power can be used for specific tasks (such asgrinding grain or pumping water) or a generator can convert thismechanical power into electricity to powerhomes, businesses, schools, and the like.
  3. 3. • Wind TurbinesWind turbines, like aircraft propeller blades, turn in themoving air and power an electric generator that suppliesan electric current. Simply stated, a wind turbine is theopposite of a fan. Instead of using electricity to makewind, like a fan, wind turbines use wind to makeelectricity. The wind turns the blades, which spin ashaft, which connects to a generator and makeselectricity.• Wind Turbine TypesModern wind turbines fall into two basic groups; thehorizontal-axis variety, like the traditional farm windmillsused for pumping water, and the vertical-axis design, likethe eggbeater-style Darrieus model, named after itsFrench inventor. Most large modern wind turbines arehorizontal-axis turbines.
  4. 4. Turbine schemat
  5. 5. We have chosen wind turbine NEG Micon 750/4450Hz power 750kW and we decided to placeturbine in Albacete in Spain becouse we think thatthis is the optimal turbine. The optimal turbine is therefore not necessarilythe turbine with the highest energy output per year.On the other hand, each square metre of rotor areacosts money, so it is of course necessary to harvestwhatever energy you can - as long as you can keepcosts per kilowatt hour down
  6. 6. Power Density Function
  7. 7. The Power Curve of a Wind Turbine
  8. 8. The Power Coefficient
  9. 9. Albacete (ALBACETE)Statistics based on observations taken between 2009/2010

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