第1个回答 2010-05-10
可再生能源目前在国际上的战略地位不断提高,德国和英国通过立法宣布在2020年可再生能源在全部能源结构中占20%。瑞典在未来15年内要结束运油的历史,在心理和技术上为迎接无油世界做准备。欧盟提出2050年可再生能源中大概占50%。众多一些研究单位研究未来能源,大体上都差不多,人类的化学能源在2030年达到开采的高峰。未来能源在2050年、2100年,大家都看好太阳能发电,指的是光伏发电,所以大力发展可再生能源是必然选择。
这是2007年4月份国际能源机构的一个报告。到2006年底世界总保有量166兆平方米,中国占了9000万平方米,占了53.6%。1990年以后,中国成了最大的集热器的生产跟使用国。世界其他国家发展也很快。但是按照国际上的计算,一千人拥有的太阳能集热器的面积来算,中国排第十位。从2004年,IEA国际能源机构和美国澳大利亚他们共同讨论一下,把太阳能集热器的安装量每平方米有个折算系数,这样能把太阳能集热器和光伏、风能进行比较。可以看到集热器安装量比风能发电安装量大,但是贡献没有风力发电大。第二是地热,主要指深层地热,不是地表热供给。光伏分量比较小,光热发电分量更小。
我们国家太阳辐射资源。1971年到2000年30年的平均结果,从国家气象局一起合作弄到的资料。我们把它分成四个区域。这是太阳能的光谱,太阳的辐射能量照到地球上,能量集中在0.3到3微米的波长,可见光一般在0.4到0.7微米,能够吸收整个谱的能量。光子波长能量大,波长的电子不能产生电。
我们可以分成四个区域。这四个区域,丰富区占了96%,这跟过去的分区名称有变化。如果跟欧洲相比,我们国家全部的地区都是太阳能资源可以利用的,每年太阳能照到960万平方公里的中国领土上相当于1.7亿万吨标煤的能量。到一定时候,水电、风电与生物质能的资源利用趋于饱和,而太阳辐射的能量很大,而且持久。
参考资料:殷志强:太阳能热利用科技与产业发展
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第2个回答 2010-05-12
The lakers to a 111-96 road to beat Utah, 4-0 in the western conference finals, with the sun, helped. The lakers gasol crazy scored 33 points and 14 rebounds, became the most key of defeating jazz.
By the end of the game's whistle sounds, gasol and Bryant tightly embrace, kobe Bryant to a post hand hold gasol his ear and whispered in his eyes,jerseys On Sale, two intersection. Although nobody knows what to pau gasol said Bryant, but from what the two expressions for gasol, Bryant was absolutely outstanding performance to the praise. Bryant knows: because gasol's help, lakers playoff road will go so smoothly.
This game, Bryant scored 11 of 23 32 points and rebounds and four assists for the lakers, who can say the most outstanding performance, the person must be pau gasol, he made 12 of his 18 September 11 free throws, and 33 points and 14 rebounds on the achievements and the efficiency of the amazing almost anyone to him to performance.
If a player is the key to the value of his time, then let this game gasol got very complete. The fourth quarter with five minutes to go, Paul milsap jumper to help the jazz will both close to 11 points,NHL Jersey, jazz still retains a comeback hopes, but then pau gasol's impressive but let the jazz lost confidence completely. He used a jumper in moving the ball into the basket, and then trying to cause the basket with two fouls and carlos boozer will lead both free throws. Utah now thoroughly lost their cool, Paul milsap offensive foul shots missed three points, Williams, gasol got artest's pass again jumper, this makes the jazz had completely into chaos. Then, in and pau gasol for a boozer again when the rebounds and deron convicted for the foul calls discontent blown a technical foul with free throws, pau gasol to another, the game is lost. Only 1 points in 30 seconds, pau gasol scored nine straight. This attack wave after orgasm, the lakers lead has been expanded to 20 points, the jazz completely lost pull.
This is not the first time in the playoffs gasol on this show, in the ragazzi rage against the sixth race series, pau gasol in the final 0.5 seconds, and finally made the lakers beat lay-up shot away in a 95-94 victory thunder 4-2, with the total score, to progress to the western conference semifinals. Although everyone knows kobe Bryant is the team,discount sports jerseys, but no doubt genuine core around kobe Bryant is the most gasol capable assistant, without pau gasol, the lakers can help to today is so strong.
33 points in the playoffs this season is pau gasol, points in one game, gasol before every game and not scoring binge, but so long as he moves, he must have had a high rate of attack, the playoffs begin after the shooting,The MLB Jerseys 4-0 sweep up the jazz, gasol 54.8%. And not only fast offensive rebounds, gasol is often desperate. The sixth game against thunder had 18 rebounds against the jazz, third scored 17 rebounds, it has explained how hard now pau gasol.
With gasol on the inside of the top side help, I'm afraid he's kobe Bryant and a championship.