科普宣傳之能源危機(jī)saving-energy課件_第1頁(yè)
科普宣傳之能源危機(jī)saving-energy課件_第2頁(yè)
科普宣傳之能源危機(jī)saving-energy課件_第3頁(yè)
科普宣傳之能源危機(jī)saving-energy課件_第4頁(yè)
科普宣傳之能源危機(jī)saving-energy課件_第5頁(yè)
已閱讀5頁(yè)，還剩39頁(yè)未讀， 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說(shuō)明：本文檔由用戶(hù)提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡(jiǎn)介

WHYDOWE

NEEDTOSAVE

ENERGY?WithoutEnergyNoLifeEARTHisafinite

systemNothingiscreated,NothingisdestroyedEverythingistransformedSource:BPStatisticalReviewofWorldEnergy2007World'sprovenoilreservesare1200billionbarrels

600billionbarrels

toextractfromtarsands

inCanadaandVenezuela+Theworldconsumptionofoil…

…continuestogrowthMillionBarrelsofOilaDayAnnualgrowthAnnualConsumption

RestoftheWorldUSAChinaWithaworldoilconsumptiongrowthof1%peryear

…40years…theoilreserveswillbe

exhaustedinlessthanBut…Remember!Theonlythingthatwehavetofear,itisthattheskymightfallonourheads!…andpreciselyIn

200years,wewillhave

releasedintheatmosphere,thecarbon

thattooknature

600million

yearstotrap1850190019502000CO2Thesealevelhasrisen15to20cm

overthe20thcenturyandisgoingtorise

another18to59cmbytheyear2100Wearelivinginaworld

inexponentialgrowth2005100005000bef.JC10000bef.JC5million250millionin11billionin18003billionin19604billionin19755billionin19872billionin19306.5billionin2005Theworld

population

isincreasingTheworldenergyconsumptionisincreasing1milliontonnesoil

equivalent=11.6MWhSource:IEA,Mai200790%offossilenergyRnvEnergyNuclearNaturalgasOilCoalMillionsoftoeEnergycostisincreasingHowmanyEarthsdoweneed?InChinese,"theword?

crisis

?ismadeupoftwoletters.

Onerepresentsdangerandtheotheropportunity"

Inonlyoneday,thesunprovidesthe

Earthwiththesameenergytothat

consumedbyhumanityin35years"With

ConcentratedSolarPowerStations,

onethousandthofthedesertssurface

wouldbesufficienttocover

theworld’sneedinelectricity"

HansMüller-SteinhagenHeadoftheInstituteofTechnicalThermodynamics

GermanAerospaceCenterThesearetheelectricmotorsthatconsume

themostenergyintheindustry70%ElectrolysisOtherusesLightingElectricmotors9%4%17%Thepurchasecostofamotor

isnothinginrelationto

itscostofusePurchasecost2.5%Maintenancecost1.5%Energycost96%GlobalCostofanelectricmotor…andthesearemainlythe

frequencyinvertersthatallow...toreducetheenergyinvoice

whileadaptingthedemandtotheneedAcentrifugalpumpor

afanischaracterizedby

AflowproportionaltothespeedQαvPressureProportional

tothesquarespeedpαv2Powerproportional

tothecubespeedpαv2Pαv3/2Acentrifugalpumporfanworkingtoits

nominalspeeddividedby2,

so,tothehalfofthemaximalflow/8…h(huán)asanenergyconsumption

dividedby830upto40%energysavingscanberealizedfora

centrifugalpumporafanWithafrequencyinverter

theworkingandservicecostsdecreaseAsoftoday,

themanufacturesconsuming

themos

溫馨提示

  • 1. 本站所有資源如無(wú)特殊說(shuō)明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶(hù)所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽，若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫(kù)網(wǎng)僅提供信息存儲(chǔ)空間，僅對(duì)用戶(hù)上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對(duì)用戶(hù)上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請(qǐng)與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶(hù)因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

最新文檔

評(píng)論

0/150

提交評(píng)論