首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
California Gives Green Light to Space Solar Power Energy beamed down from space is one step closer to reality, now that Cali
California Gives Green Light to Space Solar Power Energy beamed down from space is one step closer to reality, now that Cali
admin
2013-05-28
39
问题
California Gives Green Light to Space Solar Power
Energy beamed down from space is one step closer to reality, now that California has given the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatt(兆瓦)of power beamed down from solar-power satellites beginning in 2016. But some major challenges will have to be overcome if the technology is to be used widely.
A start-up company called Solaren is designing the satellites, which it says will use radio waves to beam energy down to a receiving station on Earth.
The attraction of collecting solar power in space is the almost uninterrupted sunshine available in eosynchronous(与地球同步的)orbit. Earth-based solar cells, by contrast, can only collect sun light during daytime and when skies are clear.
But space-based solar power must grapple(努力克服)with the high cost per kilogram of launching things into space, says Richard Schwartz of Purdue University in West Lafayette, Indiana. "If you’re talking about it being economically viable or power of the Earth, it’s a tough go. " he says.
Cal Boerman, Solaren’s director of energy services, says the company designed its satellites with a view to keeping launch costs down. "We knew we had to come up with a different, revolutionary design," he says. A patent the company has won describes ways to reduce the systems weight, including using inflatable minors to focus sunlight on solar cells, so a smaller number can collect the same amount of energy.
But using minors introduces other challenges, including keeping the solar cells from overheating, says Schwartz. "You have to take care of heat dissipation(散发)because you’re now concentrating a lot of energy in one place," he says. According to the company’s patent, Solaren’s solar cells will be connected to radiators to help keep them cool.
Though Boerman says the company believes it can make space-based solar power work, it is not expecting to crowd out other forms of renewable energy. Laws in California and other states require increasing use of renewable energy in coming years, he points out. "To meet those needs, we’re going to need all types of renewable energy sources," he says.(2010年)
One advantage of space-based solar power system is that it is economical.
选项
A、Right
B、Wrong
C、Not mentioned
答案
B
解析
题干大意:太空太阳能电池的优点之一就是省钱。本题给出的信息是错误的。从文章第四段But space-based,solar power must grapple(努力克服)with the high costper kilogram of launching things into space.但太空太阳能必须竭力减少向太空发射每一公斤物品而付出的高昂成本,即成本高的问题。由此可以看出题干所述是错误的。
转载请注明原文地址:https://kaotiyun.com/show/8iLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
ScientistsDevelopWaysofDetectingHeartAttackGermanresearchershavecomeupwithanewgenerationofdefibrillators(除颤
ScientistsDevelopWaysofDetectingHeartAttackGermanresearchershavecomeupwithanewgenerationofdefibrillators(除颤
AAttractionsofTravellingBLanguageProblemWhenEatingOutCRevolutionCausedbyJetsDHowTravellers’ConcernsAreMe
AnimalsintheDesertSomedesertanimalscansurvivetheverystrongsummerheatanddrynessbecausetheyhaveveryunusualcha
AnimalsintheDesertSomedesertanimalscansurvivetheverystrongsummerheatanddrynessbecausetheyhaveveryunusualcha
AUndeniableMiffsAchievementsBRewardsFollowingtheUSFinancialInjectionCMir’sProblemYearDMirRegardedasa
AFactorsLeadingtoEnergyWasteBHomeAppliancesCPropsalstoCutEnergyConsumptionDEnergyConsumptionTestETerawa
ThePriceofIdleness1.ElectricaldevicessuchasCDplayers,vidoesandburglaralarmsareconsumingmoreenergyinstandbymo
Thenurseryisbrightandcheerful.
随机试题
____不锈钢经加热和冷却后,没有相变。
现代广场的特点_______。
简述唐朝实旋两税法的作用。
下列属于计算机性能指标的有__________。
有关无痛注射正确的叙述是()。
中国A公司与德国B公司因双方合同中仲裁条款的效力问题在我国涉诉。双方在合同中约定仲裁机构为位于巴黎的国际商会仲裁院,仲裁地为斯德哥尔摩,但对该仲裁条款应适用的法律未作约定。依我国现行司法解释,我国法院审查该仲裁条款效力时,应适用下列哪国的法律?()
根据《建设工程工程量清单计价规范》的有关规定,池槽保温隔热工程量清单计算中,正确的是( )。
施工单位为了保证工程质量而提高混凝土标号一个等级,此行为属于()。
甲公司为增值税一般纳税人,2019年6月份发生销项税额合计为88万元,增值税进项税额转出合计16万元,增值税进项税额合计48万元,甲公司当月应交增值税的金额为()万元。
(2016·江西)教学媒体是指教与学活动中传递信息的中介,能够使教学信息传递更加标准化,教学媒体包括存储、呈现、处理、传递教学信息的物理载体和承载教学信息的()
最新回复
(
0
)