英语风电省公开课一等奖全国示范课微课金奖PPT课件.pptx

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Traditional energy and electricity generation
Although there are many different sources of energy available, more than three-quarters of the energy used in developed countries comes from oil, gas and coal. Currently the thermal power plants of our country, which take up more than 70% of the installed capacity of China’s electrical power system, use coal as fuel.
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Existing energy
Existing power sources of energy are three kinds, namely, ______ power, _____power and _______ power.
With economic development, social progress, people put forward higher requirements of energy, Find new energy sources become an urgent issue facing humanity.
thermal
hydro
nuclear
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The shortcomings of thermal power
Thermal power plants are those making use of fuels like coal, petroleum and natural gas. On the one hand the limited reserves of fossil fuels, the more burning, the less left, which is facing the danger of depletion. It is estimated that worldwide oil depletion put another ___ years. On the other hand burning fuel will emit ____________ and ____________, thereby causing the ___________ effect and ____ rain, deterioration of global environment.
30
carbon dioxide
sulfur oxides
greenhouse
acid
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The shortcomings of hytro- power
Water to drown large areas of land, may lead to __________ destruction and if the large _________ once collapse, the consequences would be disastrous. In addition, a country's water resources are limited, but also by the impact of the season.
ecological
reservoirs
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What do you know about new energy?
Wind power
Solar power
Tidal power
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Wind energy
Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electricity, wind mills for mechanical power, wind pumps for pumping water or drainage, or sails to propel ships.
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发动机箱
Engine box 包含：
变速箱 Transmission 
发电机
Generator
电子控制装置 Electronic control
偏航控制器
Yaw controller
制动装置
Brake Device
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高空风能发电High-altitude wind power
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