Renewable energy wind and biomass
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Renewable Energy - Wind and Biomass PowerPoint PPT Presentation


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Renewable Energy - Wind and Biomass. Convection currents. Warm air ________, while cool air _______. The Earth’s surface heats unevenly causing air masses to _________ in the atmosphere. Wind turbines. Cost effective Easy to install Worldwide use quadrupled 1985-2000. Wind Farms.

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Renewable Energy - Wind and Biomass

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Renewable energy wind and biomass

Renewable Energy - Wind and Biomass


Convection currents

Convection currents

  • Warm air ________, while cool air _______.

  • The Earth’s surface heats unevenly causing air masses to _________ in the atmosphere.


Wind turbines

Wind turbines

  • Cost effective

  • Easy to install

  • Worldwide use quadrupled 1985-2000


Wind farms

Wind Farms

  • Large arrays of turbines

  • Used on farms and ranches

  • Allows some people to live “off the grid”

  • Underdeveloped resource – could be used to turn water into hydrogen

Tehachapi wind farm


Biomass conversion

Biomass conversion

  • Organic materials such as wood, agricultural waste and dung can be used directly or can be converted to another energy source


Methane

Methane

  • Bacterial decomposition of organic waste produces methane

  • Clean burning – produces Carbon dioxide and water

  • Methane is a powerful greenhouse gas


Renewable energy wind and biomass

  • Common in valley at dairies and waste disposal sites.


Alcohol

Alcohol

  • Ethanol can be produced by fermenting fruit or agricultural waste

  • Corn

  • Gasohol produces less pollution than gas alone


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