资源描述:
《影响光伏系统高效利用太阳能的因素实验-研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、内蒙古工业大学硕士学位论文AbstractEnergyisthelifebloodofthepublicproductiondevelopment,alsoisthecorecontentofthenationalstrategyaroundtheworld.Atthesametime,duetothelimitedandnon-renewableoffossilenergy,itwilleventuallybeexhausted,andbringsincreasingenvironmentalpollution.Thedevelopmentandutilizationofrenewab
2、leenergyhavebecometheonlywayofenergydevelopment.Solarenergyisanimportantpartofrenewableenergy,haslargereserves,widedistributionandothercharacteristics.Recently,solarphotovoltaicgetsrapiddevelopmentbecauseitcanconvertsolarenergydirectlyintoelectricity.Conversely,lowconversionefficiencyhasbeenrestr
3、ictingthedevelopmentofphotovoltaicpowergeneration.Hohhothasgoodlightingconditions,andthesolarenergyutilizationrateishigh.So,thispaperstudiestheinfluenceofdifferentwaysoninstallingthePVsystemperformance.InHohhot,simulationandexperimentalstudyofthesolarradiationthatPVmodulesgainedunderdifferentinst
4、allations,suchasinstallationfixedangle,two-axistracking,verticalaxistracking,andthenorth-southaxistracking.Theresultsshowthat:theradiationoftrackingdeviceobtainedishigherthanhorizontalplane,besides,thesolarradiationoftwo-axistracking,verticalaxistrackingincrease80%and68%;thecharacteristicofmonthl
5、yutilizationfactorishighinsummerandlowinwinter;theinstantaneousutilizationfactoroftwo-axistracking,verticalaxistrackingandnorth-southaxistrackinghasthecharacteristicsofhighatnoonandlowinthemorningandevening;theinstantaneousutilizationfactorof37°anglechangessmoothlythroughouttheday;forthegridphoto
6、voltaicsystems,verticalaxistrackinghasthelowercost,simplestructure,sothechoiceoftheverticalaxistrackingcangethigherreturns.ThispaperstudiestheperformanceofthePV/Tsystem.Thispaperdesigneda"labyrinth"PV/Tsystem,toimprovetheefficiencyofphotovoltaiccomponents.Theresultsshowthat:whentheinletwatertempe
7、ratureisconstant,thepowerofPVmodulesincreased9.1%;whenthewaterqualityisconstant,thepowerofPVmodulesincreased7.3%,andthecoolingwatertemperaturecanabove35℃,what'smore,theprimary-energysavingefficiencymayreachuptoabout50%