Download - Power Plant Construction and QA/QC Section 1.8– Wind Energy Engineering Technology Division
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Power Plant Construction and QA/QC
Section 1.8– Wind Energy
Engineering Technology Engineering Technology DivisionDivision
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Overview
• Definition
• Generation
• History
• Benefits
• Resources
• Effect on Height
• Development Limitations
• Environmental Aspects
Section 1.8– Wind Energy
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Definition
Section 1.8– Wind Energy
Wind is the flow of gases or air on a large scale. In meteorology, winds are often referred to according to their strength, and the direction from which the wind is blowing. The two main causes of large-scale atmospheric circulation are the differential heating between the equator and the poles, and the rotation of the planet.
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Section 1.8– Wind Energy
Generation
High to Low Pressure
Differential Heating / Cooling
“Coriolis Effect”
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History
Section 1.8– Wind Energy
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Benefits
Section 1.8– Wind Energy
Wind energy
• Releases no pollution
• Does not contribute to global warming
• Wind power is a free and inexhaustible ("renewable")
• Diversifies the national energy portfolio
• Reduces reliance on imported fuels
• wind turbines do not consume water.
Drawback
• Inconsistent (supplemental only)
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Benefits - Emissions
Section 1.8– Wind Energy
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Resources
Section 1.8– Wind Energy
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Effect on Height
Section 1.8– Wind Energy
Turbulent versus
Laminar Flow
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Development - Types
Section 1.8– Wind Energy
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Development - Limitations
Section 1.8– Wind Energy
• Winds unreliability factor.
• Wind turbines generally produce allot less electricity.
• Wind turbine construction can be very expensive.
• Costly to surrounding wildlife.
• The noise pollution is sometimes similar to a small jet engine.
• Protests and/or petitions usually confront any proposed wind farm development.
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Environmental Aspects
Section 1.8– Wind Energy
Wind Farm Land Usage – Large tracts required
Construction – underground habitats
Birds and Bats – noise and blade movement
Noise Pollution – wind speed and distance
Visual Impact – man-made versus natural
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Questions?
Section 1.8– Wind Energy