solar energy英语简介教案.pptx

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1、会计学1solar energy英语简介英语简介Solar energy1.1.how how does does solar solar energy energy generategenerate？2.2.what what are are the the advantages advantages of of solar energysolar energy？3.3.how how can can we we make make full full use use of of solar energysolar energy？4.The future solar energy4.The

2、future solar energy第1页/共24页n nInside the sun by hydrogen fusing into Inside the sun by hydrogen fusing into helium nuclear reactions,kept releases helium nuclear reactions,kept releases enormous amounts of energyenormous amounts of energy 内部氢原子发生聚变释放出巨大核能内部氢原子发生聚变释放出巨大核能第2页/共24页Solar oven As a new e

3、nergy,solar energy has three characteristics compared to conventional energy sources:1)the enormous amount 第3页/共24页太阳能2)geographical universality第4页/共24页n nthere is no transport problems,particularly in rural,remote areas.第5页/共24页太阳能3)non-polluting Solar energy is a clean source of energy,will not c

4、ause pollution.第6页/共24页But there are many limitations of using solar energyn n(1)dispersion(low energy density)n n(2)Instabilityn n(3)Low efficiency and high cost.第7页/共24页太阳能Solar carHow can we make full use of solar energy？Wide range of applications of solar第8页/共24页太阳能Solar power station第9页/共24页For

5、 example,unmanned weather stations,communication stations,television relay stations,sun clock,power rails,black light,beacon lights,railway signals第10页/共24页there are solar house,solar cookers,solar greenhouse,solar drying systems,solar technology,in particular,these technologies used widely in the n

6、orth and west,with remarkable results.第11页/共24页 Today 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 solar energy.第12页/共24页California Thermal Power Pla

7、nt第13页/共24页Space solar power station第14页/共24页Solar light Solar garden light Solar Lawn Light第15页/共24页Solar Car 第16页/共24页 Solar Aircraft 第17页/共24页The future solar energyn nSolar electrical energy generation:Solar power conversion efficiency low(11%),cost is high.Solar thermal power generating cost is

8、 the 5 10 times higher than Coal-fired powern nAt present main use of solar panels is purity silicon.To 99.9999%第18页/共24页n nOrganic solar cell Organic solar cell theory conversion efficiency theory conversion efficiency almost 100%almost 100%Researchers in the United States use extracted Researchers

9、 in the United States use extracted from plants the proteins and phosphate chemical from plants the proteins and phosphate chemical compounds such as carbon nanotubes,Developed compounds such as carbon nanotubes,Developed can simulate plant photosynthesis mechanism of can simulate plant photosynthes

10、is mechanism of self-assembling solar cells.New batteries are still has self-assembling solar cells.New batteries are still has good self-healing capability.In this way,the solar good self-healing capability.In this way,the solar cells photoelectric conversion efficiency reached cells photoelectric

11、conversion efficiency reached 40%40%第19页/共24页n nTheoretically speaking,the solar battery conversion efficiency can almost 100%.However,due to current this research is still in the cradle.n nSolution of solar cell formation in very low concentrations,its conversion efficiency is very low,also along with the further perfecting experiment,conversion efficiency will keep growing.第20页/共24页第21页/共24页第22页/共24页nThank you!第23页/共24页