外文翻譯--太陽能跟蹤系統(tǒng)：更有效率地運用的太陽能電池板

1、中文 中文 4273 字畢業(yè)設計（論文）外文資料翻譯學 院 電氣與電子工程 專業(yè)班級 電氣工程及其自動化班級 指導教師姓 名外文出處 ISI web of knowledge 2014 年 6 月 1 日2supply only temporarily. Peak world petroleum resources production will be reached within a few years.Sinc

2、e the first “energy crisis“ of 1973-1974, some concrete actions have even taken place. However, the several-fold increase in crude oil prices since 1973 has extacted a toll. In the U.S. and other industrialized nations,

3、the economy has been plagued by inflation, recession, unemployment, and obsolescence of industrial equipment. The economies of some petroleum-deficient developing countries have been devastated by energy prices.Energy cr

4、isis was accompanied by worldwide shortages of some foods and minerals, followed in some cases by surpluses, such as the surplus wheat resulting from increased planting and a copper surplus resulting from the efforts of

5、copper-producing nations to acpuire foreign currency by copper export.As known to all,the availability and cost of energy has become dominant factors in society today. Obviously, solving the “energy crisis“ makes good se

6、nse. Many schemes has been proposed for conserving present energy resources and for developing new ones. It is always possible to use less energy in any process. Therefore, energy engineer is created and developed. The f

7、irst goal of energy engineer is to determine the methods by which energy utilization is reduced but the output remains the same, or even increases.The second goal is to determine which methods of using less energy are co

8、st effective.Conventional engineering techniques are used to evaluated the mechanisms of energy use. Economic considerations are of equal importance and life cycle cost and saving techniques are used to determine cost-ef

9、fective measures. The evaluation focuses on those uses which are significant in the overall picture and attempts to determine those technical measures that can reduce usage and save money.Meanwhile, looking for ideal ene

10、rgy sources is also very important to solve energy crisis. The recipe for an ideal energy source calls for one that is unlimited in supply, widely available, and inexpensive; it should not add to the earth's total he

11、at burden or produce chemical air and water pollutants. Solar energy fulfills all of these criteria. Solar energy does not add excess heat to that which must be radiated from the earth. On a global basis, utilization of

12、only a small fraction of solar energy reaching the earth could provide for all energy needs.Solar energy is unlimited in supply, but its exploitation and utilization are limited owing to the limitation of technology and

13、conditions. Solar energy utilization needs an enormous amount of land, and there are economic and environmental problems related to the use of even a fraction of this amount of land for solar energy collection. Certainly