1、solarenergy(英语简介)最新PPT课件Solar energy1.how does solar energy2.whataretheadvantagessolar energy？3.how can we make fullsolar energy？4.The future solar energy?Inside the sun by hydrogen fusing into helium nuclear reactions,kept releases As a new energy,solar energy has three characteristics compared to
2、conventional energy sources:1)the enormous amount太阳能2)geographical universality?there is no transport problems,particularly 3)non-pollutingSolar energy is a clean source of energy,will not cause pollutionBut there are many limitations of using solar energy?(1)dispersion(low energy density)?(2)Instab
3、ility?(3)Low efficiency and high cost.太阳能How can we make full use of solar energyWide range of applications of solar太阳能For example,unmanned weather stations,there are solar house,solar cookers,solar greenhouse,solar drying systems,solar technology,in particular,these technologies used widely in the
4、north and west,with remarkable 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.California Thermal Power PlantSpace solar power stationSolar
5、 lightSolar garden lightSolar CarSolar AircraftThe future solar energy?Solar electrical energy generation:Solar power conversion efficiency low(11%),cost is high.Solar thermal power generating cost is the 5 10 times higher than Coal-fired power?Organic solar cell theory conversion efficiency almost
6、100%Researchers in the United States use extracted from plants the proteins and phosphate chemical 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 ce
7、lls photoelectric conversion efficiency reached 40%?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 efficiency is very low,also along with the further perfecting experiment,conversion efficiency?Thank you!
