solar energy英語簡介PPT課件

1、.,1,Solar energy,主講：陳宇 （2010180109）,.,2,Solar energy,1. how does solar energy generate？ 2. what are the advantages of solar energy？ 3. how can we make full use of solar energy？ 4. The future solar energy,.,3,Inside the sun by hydrogen fusing into helium nuclear reactions, kept releases enormous amou

2、nts of energy 內(nèi)部氫原子發(fā)生聚變釋放出巨大核能,.,4,Solar oven,As a new energy, solar energy has three characteristics compared to conventional energy sources: 1)the enormous amount,.,5,太陽能,2) geographical universality,.,6,there is no transport problems, particularly in rural , remote areas.,.,7,太陽能,3) non-polluting

3、 Solar energy is a clean source of energy,will not cause pollution.,.,8,But there are many limitations of using solar energy,(1) dispersion (low energy density) (2) Instability (3) Low efficiency and high cost.,.,9,太陽能,Solar car,How can we make full use of solar energy？,Wide range of applications of

4、 solar,.,10,太陽能,Solar power station,.,11,For example, unmanned weather stations, communication stations, television relay stations, sun clock, power rails, black light, beacon lights, railway signals,.,12,there are solar house, solar cookers, solar greenhouse, solar drying systems, solar technology,

5、 in particular, these technologies used widely in the north and west, with remarkable results.,.,13,Today, we have already adopted a variety of different ways of developing its use, it has become necessary for our daily part of life and has greatly changed our lives. Here is our common examples of s

6、olar energy.,.,14,California Thermal Power Plant,.,15,Space solar power station,.,16,Solar light,Solar garden light,Solar Lawn Light,.,17,Solar Car,.,18,Solar Aircraft,.,19,The future solar energy,Solar electrical energy generation : Solar power conversion efficiency low (11%), cost is high. Solar t

7、hermal power generating cost is the 5 10 times higher than Coal-fired power At present main use of solar panels is purity silicon. To 99.9999%,.,20,Organic solar cell theory conversion efficiency almost 100% Researchers in the United States use extracted from plants the proteins and phosphate chemic

8、al compounds such as carbon nanotubes ,Developed can simulate plant photosynthesis mechanism of self-assembling solar cells. New batteries are still has good self-healing capability. In this way, the solar cells photoelectric conversion efficiency reached 40%,.,21,Theoretically speaking, the solar battery conversion efficiency can almost 100%. However, due to current this research is still in the cradle. Solution of solar cell formation in very low concentrations, its conversion effici