Concentrating solar module with horizontal reflectors

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1、SolarEnergyMaterials&SolarCells75(2003)603–612ConcentratingsolarmodulewithhorizontalreflectorsToshioMatsushima*,TatsuyukiSetaka,SeiichiMuroyamaNTTFacilities,R&DDepartment,2-13-1Kita-otsuka,Toshima-ku,Tokyo170-0004,JapanAbstractAnon-sun-trackingconcentr

2、atingsolarmoduleisdescribedthatisdesignedtoachievephotovoltaic(PV)systemswithhighergenerationpowerdensity.Theproposedconcentratingmoduleconsistsofasolarpanelhavingahighertiltanglethanthatofaconventionaloneandwithasolarreflectorplacedinfrontofthesolarpa

3、nelonadownwardinclinationangletowardsthepanel.Asaresultofthisconfiguration,thesolarpanelreceivesreflectedaswellasdirectsunlightsothatmaximumirradianceandshort-circuitcurrentwereincreased.Thisconfigurationisexpectedtoreducethearearequiredforsolarpanels,re

4、sultinginlowercostPVsystem.r2002ElsevierScienceB.V.Allrightsreserved.Keywords:Concentratingsolarmodule;Irradiance;Short-circuitcurrent;Reflector;Solarpanel;Outputpower1.BackgroundSolarcellschangethereceivedsolarenergyintoelectricity,sotheyhavereceiveda

5、lotofattentionascleanenergydevicesthatdonotreleaseanyhazardouspollutantsintotheenvironment.Thecostofphotovoltaic(PV)systemshasbeenreducedastheirproductionhasbeenincreased,however,furthercostreductionisdesired.Toachievethis,someattemptshavebeenmadetoim

6、provetheirgenerationefficiencyandgenerationdensitybyusingconcentrators.However,somepreviouslyproposedconcentratingmodulesusespeciallyconfiguredlensesand/orneedsomemechanismfortrackingthesun[1–4].Therefore,ithasbeendifficulttoproduceconcentratingmodulesco

7、nstructedintheconventionalwayatacommerciallyacceptableprice.We*Correspondingauthor.Tel.:+81-3-5907-6421;fax:+81-3-5961-6630.E-mailaddress:matusima@rd.ntt-f.co.jp(T.Matsushima).0927-0248/03/$-seefrontmatterr2002ElsevierScienceB.V.Allrightsreserved.PII:

8、S0927-0248(02)00156-3604T.Matsushimaetal./SolarEnergyMaterials&SolarCells75(2003)603–612havedevelopedanewtypeofconcentratingmodulewithoutlensesorsun-trackingmechanisms.2.ConceptandstructureTheproposedconcentratingmodulewasdesignedandconstructe