时间:2019-01-14 作者:英语课 分类:VOA标准英语2016年(三月)


英语课

Study: Running Sun Power Plant With Molten Metal May Be Cheaper 研究显示太阳电站运行或拉低熔融金属价格


Power plants that work with concentrated solar power use special molten salt to convert the sun’s heat into steam which turns the generators 1 that produce electricity. Researchers at the Georgia Institute of Technology say using molten metal instead of salt may increase the efficiency of the generators. The innovative 2 design was presented at the recent energy summit in Washington.


While water circulates in this scale model of a concentrated solar power plant, a full-size plant uses molten salt. But the man behind the radical 3 new design says using tin instead of molten salt could make the process dramatically more efficient.


“The main thing that makes it better than the state of the art is really the fact that by pushing up the temperature we were able to use a higher efficiency power cycle and the higher efficiency means for the same size of field you get more power out," said Asegun Henry of the Georgia Institute of Technology.


Molten tin can get hotter than molten salt, but it cannot flow through metal pipes. Experimenting in his lab, Henry found that it easily flows through pipes and valves made of graphite.


“It's machineable so it allows us to make complicated components 4 like this where you can thread them, you can still use mechanical interfaces 5 you are used to," said Henry.


His design uses ceramics 6 that can also withstand high temperatures, do not corrode 7 and do not react with tin. With good insulation 8, tin can stay liquid even overnight. So far, all the critical parts have been tested.


“We can pump liquid metal, we can valve it, and control it, we can bond these tubes together without getting leaks," explained Asegun Henry.


Taking into account the size of the required mirror field and the cost of the special salt, Henry expects using molten tin should reduce the overall cost of building a concentrated solar heat plant by as much as 30 percent.



n.发电机,发生器( generator的名词复数 );电力公司
  • The factory's emergency generators were used during the power cut. 工厂应急发电机在停电期间用上了。
  • Power can be fed from wind generators into the electricity grid system. 电力可以从风力发电机流入输电网。 来自《简明英汉词典》
adj.革新的,新颖的,富有革新精神的
  • Discover an innovative way of marketing.发现一个创新的营销方式。
  • He was one of the most creative and innovative engineers of his generation.他是他那代人当中最富创造性与革新精神的工程师之一。
n.激进份子,原子团,根号;adj.根本的,激进的,彻底的
  • The patient got a radical cure in the hospital.病人在医院得到了根治。
  • She is radical in her demands.她的要求十分偏激。
(机器、设备等的)构成要素,零件,成分; 成分( component的名词复数 ); [物理化学]组分; [数学]分量; (混合物的)组成部分
  • the components of a machine 机器部件
  • Our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。
界面( interface的名词复数 ); 接口(连接两装置的电路,可使数据从一种代码转换成另一种代码); 交界; 联系
  • If the class needs to be reprogrammed, new interfaces are created. 如果class需要重新程序设计,新的interfaces创建。
  • Interfaces solve this problem of evolving code. Interfaces解决了代码升级的问题。
n.制陶业;陶器
  • an exhibition of ceramics by Picasso 毕加索陶瓷作品展
  • The ceramics bore the imprint of Luca della Robbia. 陶器上印有卢卡·德拉·罗比亚的字样。
v.使腐蚀,侵蚀,破害;v.腐蚀,被侵蚀
  • The tools will corrode with rust if never used.这些工具如长期不用会长铁锈而损坏。
  • It will pollute people's aesthetic taste and corrode social spirit.它污染人们的审美趣味,腐蚀社会精神。
n.隔离;绝缘;隔热
  • Please examine the insulation of the electric wires in my house.请检查一下我屋子里电线的绝缘情况。
  • It is always difficult to assure good insulation between the electric leads.要保证两个电触头之间有良好的绝缘总是很困难的。
学英语单词
achromatosis
acquisition cession
agate bearing
al-hasan ibn al-haythams
Alpinia densibracteata
amarjits
aptotes
assessment of time preference
attenazio
AURPO
autoinducible enzyme
available space list
aviling
bala
be said to
be sparing of oneself
bipolaron
bird-songs
boiling water
Bouvet Fracture Zone
capping shutter
clearer belt
clunged
commissorial
continuous current rating
coprime
costusroots
Cryptochilum
DDR5
Druzbice
dual dimensioning
earth's polar radius
eke out one's livelihood
El Viso del Alcor
electric press
electrical resistance alloys
enterovaccine
erythrocytic segment
evaporating heating surface
feeldevice
fiato
finder screen
forward welding
g.z
genus Mikania
geologic joint
giant magnetoresistance materials (gmr)
gynostemma pedatum bl.
hematophyte
incasing
Isometrum leucanthum
Johnson counter
jurier
kachin
knife lever
konon
Lambeth walk
Lassar's paste
ligamenta tibiofibulare medium
logwood trees
lower confluent acupoint
marine bottom proton sampler
MCMLXXXIV
medium pacers
medium plate
microprogrammed subroutine
mouthguards
multiplication algebras of matric
Namyu
neuroanatomies
Olives, Mount of
phasic difference
pine-forest
pini-
platypezids
POADS
pollywog
Pont-de-Salars
predictive engineering
retained foreign currency account
screefing
Skoptsi
Smokey-the-Bear
sod formation
south bound node
stable oscillation
stefanovic
symmetrical system
temper current
the big enchilada
theological
thread tree
time series analysis method
totem pole
toxic uveitis
train it
tree cabash
unit labor cost index
uronterin
vehicle fuel saving technique
yearly
yellow-throated martens