Wind Farming

Wind Farming

Windmills have been in use since 7th century Persiao Initially employed for grinding flour and pumping

water

Pioneers such as James Blyth (18??-18??) developed and patented a dynamo version in 1887 which powered the lights in his cottage

Early Persian Windmill ‘Windmill at Wijk bij Duurstede’ - Jacob Isaakszoon van Ruisdael,

Wind-turbine advertisement

Windmill History

Wind Turbine Design

Energy OutputWind turbines use kinetic energy from the motion of airo Energy flowing through an imaginary area is calculated

as

While mill output varies considerably, a general rule is the larger the blade the more energy output

E= mv2= (Avtp)v2= Atpv312

12

12

p = density of airv = wind speedAvtp = mass m per unit time

P= = Apv3Et

12

Sustainable Energy

Current Energy Systems

Coal, Oil & GasNuclear

First Generation Technologies

Hydroelectricity

Second Generation Technologies

Solar Energyo Solar Heatingo Solar Photovoltaics

Wind EnergyWave PowerGeothermal EnergyArtificial PhotosynthesisTidal Power

Third Generation Technologies

Biomass GasificationBiorefinery TechnologiesSolar Thermal Power

National Energy Generation by Process