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简介：Thisstudydefinesandassessestheselectionciiteriaforsuitableparticulatematerialstobeusedinanupflowbubblingfluidizedbed(UBFB)ordenseup-flowpowdercirculationsystemforsolarenergycaptureandstorage.Themaincriteriaidentifiedarebasedonthethermophysicalandthermomechanicalproperties,attritionbehavior,andtheconsiderationsofhealthandenvironmentalhazardsofthecandidatepowders.Finally,acostcomparisonandtentativerankingofthedifferentcandidatepowdersispresentedinadditiontoaweightedscoring.Significantscoringdifferencescanbeobservedbetweenthevariousmaterials.Olivinepossessesthemostfavorablecharacteristicsandappearstobetheparticulatematerialofchoiceforsolid/gassuspensionheattransferfluids.

简介：Thispaperpresentsthedesign,implementationandtestingofanembeddedsystemthatintegratessolarandstorageenergyresourcestosmarthomeswithinthesmartmicrogrid.Theproposedsystemprovidestherequiredhomeenergybyinstallingrenewableenergyandstoragedevices.Italsomanagesandschedulesthepowerflowduringpeakandoff-peakperiods.Inaddition,atwo-waycommunicationprotocolisdevelopedtoenablethehomeownersandtheutilityserviceprovidertoimprovetheenergyflowandtheconsumptionefficiency.Thesystemcanbeanintegralpartforhomesinasmartgridorsmartmicrogridpowernetworks.Aprototypefortheproposedsystemwasdesigned,implementedandtestedbyusingacontrolledloadbanktosimulateascaledrandomrealhouseconsumptionbehavior.Threedifferentscenariosweretestedandtheresultsandfindingsarereported.Moreover,dataflowsecurityamongthehome,homeownersandutilityserverisdevelopedtominimizecyber-attacks.

简介：Thearticlepresentsthatinthehydropowerplanning,theregulationcapacityofreservoirsshouldbemeasuredbytheirenergystoragecapacity.BycalculatingtheenergystoragecapacityofthelargereservoirsinChinaandabroad,itshowsthattheenergystoragecapacityoftheLongyangxiaReser-voirontheupperYellowRiverisoneofthelargest.EnormousbenefitcanbeobtainedthroughcompensationregulationofthecascadehydropowerprojectsontheupperYellowRiverandthenearbyinterbasinhydropowerprojectsbytheaidoftheenergystoragecapacityoftheLongyangxiaReservoir.

简介：Thewindenergygeneration,utilizationanditsgridpenetrationinelectricalgridareincreasingworld-wide.Thewindgeneratedpowerisalwaysfluctuatingduetoitstimevaryingnatureandcausingstabilityproblem.Thisweakinterconnectionofwindgeneratingsourceintheelectricalnetworkaffectsthepowerqualityandreliability.Thelocalizedenergystoragesshallcompensatethefluctuatingpowerandsupporttostrengthenthewindgeneratorinthepowersystem.Inthispaper,itisproposedtocontrolthevoltagesourceinverter(VSI)incurrentcontrolmodewithenergystorage,thatis,batteriesacrossthedcbus.Thegeneratedwindpowercanbeextractedundervaryingwindspeedandstoredinthebatteries.Thisenergystoragemaintainsthestiffvoltageacrossthedcbusofthevoltagesourceinverter.Theproposedschemeenhancesthestabilityandreliabilityofthepowersystemandmaintainsunitypowerfactor.Itcanalsobeoperatedinstand-alonemodeinthepowersystem.Thepowerexchangeacrossthewindgenerationandtheloadunderdynamicsituationisfeasiblewhilemaintainingthepowerqualitynormsatthecommonpointofcoupling.Itstrengthenstheweakgridinthepowersystem.Thiscontrolstrategyisevaluatedonthetestsystemunderdynamicconditionbyusingsimulation.Theresultsareverifiedbycomparingtheperformanceofcontrollers.

简介：Hightemperaturelatentthermalstorageisoneofthecriticaltechniquesforasolardynamicpowersystem.Thispaperpresentsresultsfromheattransferanalysisofaphasechangesaltcontainmentcanister.Athree-dimensionalanalysisprogramisdevelopedtomodelheattransferinaPCMcanister.Analysisincludeeffectsofasymmetriccircumferenceheatflux,conductionincanisterwalls,liquidPCMandsolidPCM,voidvolumechangeandvoidlocation,andconductionandradiationacrossPCMvaporvoid.ThePCMphasechangeprocessismodeledusingtheenthalpymethodandthesimulationresultsarecomparedwiththoseofothertwo-dimensionalinvestigations.It'sshownthattherearelargedifferencewithtwo-dimensionalanalysis,thereforethethree-dimensionalmodelisnecessaryforsystemdesignofhightemperaturelatentthermalstorage.

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简介：这份报纸讨论由连接到在在微格子的系统有精力存储系统和力量电子学的角色的微格子的systems.The好处形式的本地负担的分布式的代组成的未来力量系统是纸也检验让一个关键角色怎么微格子在聪明的格子的发展玩的presented.This。

简介：Nanostructuredcarbonmaterials,includingcarbonnanotubes,grapheneandnanoporouscarbon,showpromiseforexpandingrenewableenergy.Inparticular,theconfigurationandelectronicpropertiesofgrapheneedgesinrelationwiththeirelectrochemicalactivityhavebecomeamajorissueincarbon-basedenergystoragedevices.Here,wereviewrecentresultsconcerningtheimportantrolesofgrapheneedgesasthegatewayforlithiumionintercalationintheanodeoflithium-ionbatteries,aspromotersofhighcapacitanceincarbon-basedsupercapacitors,andasanchoringsitesforPtnanoparticlesinfuelcells.Weenvisagethatthecontrolledsynthesisofaspecific,clean,andstableedgeconfigurationcouldbeachievedtomaximizetheelectrochemicalperformanceofnanostructuredcarbon-basedenergystoragedevices.

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简介：Preparationofhierarchicallyporous,heteroatom-richnanostructuredcarbonsthroughgreenandscalableroutesplaysakeyroleforpracticalenergystorageapplications.Inthiswork,naturallyabundantlignocellulosicagriculturalwastewithhighinitialoxygencontent,hazelnutshells,werehydrothermallycarbonizedandconvertedintonanostructured‘hydrochar’.Environmentallybenignceramic/magnesiumoxide（MgO）templatingwasusedtointroduceporosityintothehydrochar.Electrochemicalperformanceoftheresultingmaterial（HM700）wasinvestigatedinaqueoussolutionsof1MH2SO4,6MKOHand1MNa2SO4,usingathree-electrodecell.HM700achievedahighspecificcapacitanceof323.2F/gin1MH2SO4（at1A/g,-0.3to0.9Vvs.Ag/AgCl）duetothecontributionsofoxygenheteroatoms（13.5wt%）tothetotalcapacitancebypseudo-capacitiveeffect.Moreover,amaximumenergydensityof11.1Wh/kgandamaximumpowerdensityof3686.2W/kgwereattainedforthesymmetricsupercapacitoremployingHM700aselectrodematerial（1MNa2SO4,E=2V）,makingthedevicepromisingforgreensupercapacitorapplications.

简介：Energystorageplaysanincreasinglyimportantroleinmodernpowersystems.Itcanaddvaluetopowersystemsinvariousaspects.Thispaperdiscussespossibleenergystoragesystem(ESS)applicationsandtheirbenefitstopowersystems.Thesystemconfiguration,converterdesign,andrecentfieldinstallationsofanLVconverterbasedESSarepresented.

简介：EnergystorageandheatdepositioninCr,Yb,Erco-dopedphosphateglasswerereported.Amodelbasedonrateequationswasusedtodeterminetheenergystoragefromthefree-oscillatingoutputenergycharacteristics.Theheatdepositionwascalculatedbymeasuringthetemperatureriseoftheglassrod.TheresultsprovidedimportantinformationfortheglassoperatinginQ-switchedmode,andalsoforcalculatingthetemperatureprofilesandcoolingrequirementsoftheglassundersingleshotandrepetitivepulsedconditions.

简介：Alloymaterialshaveattractedincreasingattentionsbecausetheypossesssuperiorelectricalconductivitywhichcancontributetoexcellentelectrochemicalperformance.HereinadendriticNi3Calloymaterialhasbeenpreparedbythepyrolysisofnickelacetylacetonateemployingoleylamineasareductantand1-octadeceneoroctadecaneasthesolvent.Thecurrent–voltagecurvesindicatingthattheelectricalconductivityofNi3Cishigherthanthatofnickeloxide.Electrochemicaltestingindicatesthatahighspecificcapacityof390C/gisfoundinalkalineelectrolyteat0.5A/g,anddeliverexcellentratecharacteristicaswellascyclelife.Theexcellentelectrochemicalperformancemaybeattributedtoitshighelectricalconductivityanddendriticnanostructurethatcanpromotediffusionofelectrolyteions.Inaddition,theAC//Ni3Casymmetricsupercapacitorhasbeenassembledatacellvoltagesbetween0and1.6V,achievingamaximumenergydensityof37Wh/kg（atapowerdensityof0.3995kW/kg）,andthismanifeststhattheNi3Calloyisapromisingelectrodematerialforelectrochemicalenergystorage.

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简介：Energy-storageweldingconnectioncharacteristicsofrapidlysolidifiedAZ91DMgalloyribbonswith40～70μmthicknessareinvestigatedusingamicrotypeenergy-storageweldingmachine.Themicrostructureandperformanceoftheconnectionjointsareanalyzedandstudied.Theresearchresultsindicatethatenergy-storageweldingisabletorealizethespotweldingconnectionofAZ9lDMgalloyribbons.Theweldingnuggetconsistsofdevelopedα-Mgequiaxedgrainswiththesizesof1.2～2.7μmandintergranulardistributedβ-Mg17Al12compounds.Thethicknessofbondzoneisabout4μmandthesolidificationmicrostructureischaracterizedbythefineequiaxedgrainswiththesizesof0.8～1.2μm,andgrainboundaryhasbecomecoarsening.ThecolumnarcrystalinHAZalsobecomesslightlycoarseningandthegrainboundaryhasbroadened,however,thereisnoobviouschangeinitsprimitivemorphologyandcrystallographicdirection.Whenweldingenergyisabout2.0J,theweldingjointswithhighershearstrengthandsmallerelectricalresistivityareobtained.

简介：AfacilehydrothermalmethodwasdevelopedforthepreparationofFe2O3@CnanocompositesusingFeCl3·6H2Oasironsourceandglucoseascarbonsourceunderalkalinecondition.Themorphologyandstructureoftheas-preparedproductwereidentifiedbytransmissionelectronmicroscopy(TEM),highresolutiontransmissionelectronmicroscopy(HRTEM),field-emissionscanningelectronmicroscopy(FESEM),X-raydiffraction(XRD),Ramanspectroscopy,FourierTransforminfraredspectroscopy(FTIR),andthermogravimetricanalysis(TGA).Theas-prepareα-Fe2O3@Cnanocompositeswereemployedforsupercapacitorelectrodematerial.Thesynergisticcombinationofcarbonelectricaldouble-layercapacitanceandα-Fe2O3pseudo-capacitanceestablishedsuchnanocompositesasversatileplatformforhighperformancesupercapacitors.Thesynthesismethoddevelopedhereisexpectedtoobtainothermetaloxide/carboncomposite.

简介：Tomeettherequirementsofelectronicvehicles(EVs)andhybridelectricvehicles(HEVs),thehighenergydensityLiNi0.8Co0.15Al0.05O2(NCA)cathodeandSi–Canodehaveattractedmoreattention.HerewereportthethermalbehaviorsofNCA/Si–Cpouchcellduringthecharge/dischargeprocessesatdifferentcurrentdensities.ThetotalheatgenerationsarederivedfromthesurfacetemperaturechangeduringelectrochemicalLi+insertion/extractioninadiabaticsurrounding.Thereversibleheatisdeterminedbytheentropiccoefficients,whicharerelatedwithopen-circuitvoltageatdifferenttemperatures;whiletheirreversibleheatisdeterminedbytheinternalresistance,whichcanbeobtainedviaV–Icharacteristic,electrochemicalimpedancespectroscopyandhybridpulsepowercharacterization(HPPC).Duringtheelectrochemicalprocess,thereversibleheatcontributeslessthan10%tototalheatgeneration;andtheheatgeneratedinchargeprocessislessthanthatindischargeprocess.Theresultsofthermalbehaviorsanalysesareconducivetounderstandingthesafetymanagementandpavingthewayforbuildingareliablethermalmodelofhighenergydensitylithiumionbattery.

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