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18 个结果
  • 简介:Theyear2008seesaturningpointinChina’sstrategyofpromotingenergysavingandemissionsreduction,aswellasdevelopmentofrenewableenergy.OilpricebreakingUS$140andlargeareainChinasufferingfrom

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  • 简介:PowersalesofBeijingPowerSupplyBureaureached31.81TWhin2000,itwasincreasedby3.563TWhoverpreviousyear,oragrowthrateof12.61%.Itwastheyearofhighestgrowthsince1978.Accordingtoanalysis,thehighgrowthrateofelectricityconsumptionisattributablemainlytonaturaldeman

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  • 简介:ConsideringbothChina'senergysecurityandthenon-renewabilityandscarcityoffossilfuels,developingnewenergies,realizingthetransformationofthenation'senergystructure,andreducingtherelianceonforeignenergyresourceswillbethelong-heldgoalsofthenationalenergypolicy.Inrecentyears,theChinesegovernmenthasintroducedaseriesofpreferentialpoliciestopromotethedevelopmentofnewenergies.Thelatestpolicyonelectricitypriceadjustmentannouncedattheendoflastyear,forinstance,involvedthestandardriseofsubsidiesforrenewableenergy,whichisexpectedtofacilitatethedevelopmentofnewenergies.

  • 标签: 补贴标准 新能源 可再生能源 开发 中国政府 化石燃料
  • 简介:Whateverworriesaboutinvestmentsinnewenergyprojectswilloccurinthefutureandathand.ThishasalwaysbeenasubjectfordebatesincetheLawofRenewableEnergyResourceswasissued.

  • 标签: 绿色能源 能源开发 风险 资源
  • 简介:Thispaperisconcernedwithwatersavingforwater-loopcoolingtowersysteminpowerplants.Anewlydevelopedwatersavingdeviceofswirlingflowispresented.Thekeypointisthatthenewwatersavingdevicemakesthesteamswirlupalongthedevicewallratherthanengenderlaminarflowinacorrugatedplate.Thecorrugatedplatedevicecansaveapproximately10percentofthetotallostwater.Incontrasttothescalemodelofcorrugatedplatewatersavingdevice,experimentalanalyseshavedemonstr...

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  • 简介:Thispaperpresentsauniquenoveldesignofthephase-shiftedcascadehighvoltageinverter.Thehighvoltageinverterutilizesfewerpowerswitchesandsuppliesabalanceload.TheusageofphaseshifttransformerandphaseshiftingSPWMensuresthatinputandoutputharmonicwavecontentislowandoutputvoltagechange(du/dt)hasalowrate,meetingalltherequirementsofthepowerauthorities.Themostout-standingfeatureistheenergysavingwithveryfastcostrecovery.

  • 标签: 高压反相器 相移位级联 多级SPWM 功率开关
  • 简介:Chinaisrichincoalbedmethane.Accordinglatestsurvey,coalbedmethanegasreserveswithaburyingdepthoffewerthan2000mamountto3600billibeingequalto45billiontonsofstandardcoalor35tonsofstandardoil.totheurymgonm3,billionNDRChasissuedthe11thFive-YearProgramforEx-ploitationandUtilizationofCoalBedMethaneinAugust.Itisplannedthattheproductionofmethanegaswillcomeupto10billionm3,andanindustrialsystemofexploitingand

  • 标签: 煤层气 能源结构 中国 能源开发
  • 简介:位于美国加利福尼亚州Carson的经销商和服务运营商NewAgeElectronics在CEDIAExpo展览会上宣布其将在美国开设第四个仓库来更好地服务美国的东北走廊区域。

  • 标签: NEW Age 新泽西州 ELECTRONICS 仓库 加利福尼亚州
  • 简介:Therearedifferentlayoutschemesfor330-500kVswitchyardwithoneandahalfbreakerconfiguration.However,asfarastheUHVswitch-yardsforpowerplantsconcerned,itisobviousthatsomelayoutschemestakeuptoomuchareaandsomeothersarenotcompatiblewiththegenerallayoutofpowerplants.Inordertoovercometheaboveproblems,anewalignedswitchyardlayoutscheme,i.e.,allcircuitbreakersanddisconnectingswitchesarealignedinonerowisdiscussedinthispaper.

  • 标签: Layout scheme ALIGNED in ONE row
  • 简介:Ⅰ.PrefaceStartingisoneoftheimportanttopicsofasynchronousmo-tors.Variedmethodsoveralongperiodoftimeforimprovingthestartingcharacteristicsoftheasynchronousmotorshadbeenadoptedbydomesticandforeignelectricalengineers.Themethodswhichinnovateontheinternalstructureoftheelectricalmotorssoastoimprovethestartingcharacteristicsfallintotwokinds.Thefirstoneistochangethestructureofthestatorwindingofthemotors,forinstance,the"star-delta"starting,the"prolongedsidetriangle"

  • 标签: ASYNCHRONOUS HARMONICS WINDING TRIANGLE STATOR starting
  • 简介:Thevariable-speedconstant-frequencywindelectricconver-sionsystemcanallowtherotationalspeedofwindturbinetovarywithwindspeedandoperateataconstantandoptimaltipspeedratio.Therefore,thewindturbinecanmaintainhighpowercoeffi-cientoverwiderangeofwindspeedandthespeedregulatingmechanismofwindtrubinecanbesimplified.

  • 标签: simplified ROTATING MAINTAIN GENERATOR TURBINE utilizing
  • 简介:Inordertopromotethedevelopmentofnewandrenewableenergytechnologies,theNationalDevelopmentandReformCommissionhasrecentlydecidedthatitwillgivebackingtothehigh-techindustrializationofnewandrenewableenergyresourceswithspecial-purposefundsduringtheperiodof2005-2007.Thestate-supportedkeypointsareasfollows.

  • 标签: 电力工业 产业化 专项投资 发展策略
  • 简介:1.0IntroductionWaigaoqiaoPowerPlantisoneofimportantinfrastructureofShanghaiPudongNewArea.Thecapacityofthefirstphaseprojectisof1200MW,withfour(4)domesticmadeandtechnologyintroduced300MWcoal-firedunits.ThisprojectwasapprovedbyStatePlanningCommissioninApril1990,andalsoassignedbytheMinistryofEnergyandMinistryofMachineryand

  • 标签: 刀口 脚口 户口 月山 山甲 阴刀
  • 简介:OnMarch251996,theelectronbeamfluegasdesulfurizationdemonstrationprojectofChengduCogenerationPowerPlantstartedformalconstructionThisisatpresentthelargestelectronbeamdesulfurizationprojectinpowerplantsintheworld,andisjointlyconstructedbySichuanElectricPowerBureauandtheEBARAWorksofJapan,ThisisanimportantcooperationprojectinenvironmentprotectionbetweenChinese

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