2023學(xué)年完整公開課版水力發(fā)電

HydropowerGeneration1Whenflowingwateriscapturedandturnedintoelectricity,itiscalledhydroelectricpowerorhydropower.Hydropowerpower,alsocalledwaterpower,isatypeofimportantcommonpowersource.capture俘獲、利用hydropower水電2Hydropowergeneratingstationsconverttheenergyofmovingwaterintoelectricalenergybymeansofahydraulicturbinecoupledtoasynchronousgenerator.hydraulicturbine水輪機(jī)coupleto和…相連3Hydropoweroffersadvantagesoverotherenergysourcesbutfacesuniqueenvironmentalchallenges.unique獨(dú)特的45Advantages:Hydropowerisfueledbywater,soit'sacleanfuelsource.Hydropowerdoesn'tpollutetheair.Hydropowerisadomesticsourceofenergy,producedinthemanycountries.fuel得到燃料、燃料domestic國內(nèi)的、本土的produce生產(chǎn)56Hydropowerreliesonthewatercycle,whichisdrivenbythesun,thusit'sarenewablepowersource.cycle循環(huán)66Hydropowerisgenerallyavailableasneeded;engineerscancontroltheflowofwaterthroughtheturbinestoproduceelectricityondemand.demand需要78Hydropowerplantsprovidebenefitsinadditiontocleanelectricity.Thesebenefitsmayincludeavarietyofrecreationalopportunities,watersupplyandfloodcontrol.inadditionto除了…之外variety廣泛、多樣8Disadvantages：Hydropowercanimpactwaterqualityandflow.Hydropowerplantscancauselowdissolvedoxygenlevelsinthewater,aproblemthatisharmfultoriverbankhabitats.quality質(zhì)量dissolve溶解habitat棲息地9Maintainingminimumflowsofwaterdownstreamofahydropowerinstallationisalsocriticalforthesurvivalofriverbankhabitats.Hydropowerplantscanbeimpactedbydrought.minimum最小量的drought干旱critical危險的survival幸存、殘存10Whenwaterisnotavailable,thehydropowerplantscan'tproduceelectricity.Newhydropowerfacilitiesimpactthelocalenvironmentandmaycompetewithotherusesfortheland.localenvironment當(dāng)?shù)氐沫h(huán)境competewith…和…競爭11Thosealternativeusesmaybemorehighlyvaluedthanelectricitygeneration.alternative替代…12Thehydraulicresourcesofmostmodernconnotationsarealreadyfullydeveloped.connotation儲量13Forinstance,intheUnitedStates,waterpoweraccountsforlessthan20%ofthetotalandthatpercentagewilldropbecausem