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
72
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)
Inflatable minors are used to reduce the space-based solar power system.
选项
A、Right
B、Wrong
C、Not mentioned
答案
A
解析
题干大意:充气未满是用来降低太空太阳能电力系统的重量。本题给出的信息是正确的,从文章第五段提到:A patent the company has won describes waysto reduce the system’s weight.我们知道这家公司的一项专利说明了降低此系统重量的多种方法。
转载请注明原文地址:https://kaotiyun.com/show/AiLd777K
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
Onlypeopleover18areeligibletovote.
Theyhavebuiltcanalstoirrigatethedesert.
HowtheBodyKeepstheSameTemperatureThetemperatureofyourbodyshouldbealwaysjustthesame,nomatterwhethertheweath
AAttractionsofTravellingBLanguageProblemWhenEatingOutCRevolutionCausedbyJetsDHowTravellers’ConcernsAreMe
Choosingatopicforresearchisimportantinthatyouwillputagreatdealoftimeandenergyintoit.Youcanresearchthet
Choosingatopicforresearchisimportantinthatyouwillputagreatdealoftimeandenergyintoit.Anexcitingandorigin
Choosingatopicforresearchisimportantinthatyouwillputagreatdealoftimeandenergyintoit.Choosingagoodresear
Choosingatopicforresearchisimportantinthatyouwillputagreatdealoftimeandenergyintoit.Allinstructorswilla
随机试题
擦伤的特点是
关于口腔颌面部解剖特点下列哪项是错误的
肺心病的首要死亡原因是:
抢救急性肺水肿病人吸氧时。湿化颅内乙醇浓度是多少
以下各项中属于专门为投资者买卖人民币特种股票而设置的账户是()。
张某拟与王某、赵某共同投资设立甲有限责任公司(简称甲公司),因张某不愿以自己名义投资,遂与李某约定,李某为名义股东,张某实际出资并享有投资收益。后李某按照约定,认缴出资100万元,设立了甲公司。李某被记载于甲公司股东名册,并在公司登记机关登记。王某、赵某认
毛泽东对“实事求是”这句话作了科学解释的著作是()。
衣服:布料
《周礼》
Americansusemanyexpressionswiththeword"dog".PeopleintheUnitedStateslovetheirdogsandtreatthemwell.【B1】______H
最新回复
(
0
)