Isitywina seSilicone esiFikayo sokuLungisa ii-Backsheets zeModyuli yeSola ezonakeleyo

I-Czech{0}}Iqela lophando lase-Austrian lenze ijeli ephezulu-yepolysiloxane yokusebenza enokuthi ilungise ngokufanelekileyo i-backsheets zemodyuli yelanga ezonakeleyo, ibuyisele iimpawu zazo zokugquma kunye nokwandisa ubomi bokusebenza kweenkqubo ze-photovoltaic (PV) ezigugayo. Esi sisombululo silungisa umba obalulekileyo ojongene nabaqhubi bezityalo zelanga, njengoko ukuthotywa kwe-backsheet{3}}ingakumbi kwiimodyuli eziveliswe malunga no-2010-kaninzi kukhokelela kwiinkxalabo zokhuseleko kunye nelahleko ebalulekileyo yemveliso yamandla.

Abaphandi basebenzise ijeli ye-polysiloxane ekhethekileyo, ephuhliswe ngokubambisana neCzech {0}esekelwe umenzi we-silicone iSiltech Solutions, esetyenziswa ngokuqhelekileyo njenge-encapsulation encedisayo kwiimodyuli ze-PV. Ngokungafaniyo nezixhobo zokulungisa eziqinileyo, iqela liguqule ijeli ukuba ibe nokuqukuqela okuphuculweyo, ukuyivumela ukuba igcwalise iintanda ezimxinwa kwaye yenze umaleko okhuselayo ongenamthungo phezu kwamaphepha angasemva awonakeleyo. Ijeli yenziwe ngesilicone{3}esekelwe kwi-polymer matrix, eyomelezwe nge-silica evuthayo njengesithako sokuqinisa ukuqina, kunye ne-arhente ephilisayo{4}}eyenza ibe lukhuni xa ityhilekile emoyeni kunye nokufuma.

"Ukufuma{0}}kuqalwa kwenkqubo yokunyanga kuphuma kumphezulu ngaphandle, kunye nejeli ngokuthe ngcembe iqina njengoko ubumanzi busasazeka kwizinto," abaphandi bacacisa. "Yakube iphilisiwe ngokupheleleyo, ijeli yenza ielastomer ebhetyebhetye enamandla okuqina kunye neempawu zokwandisa, iqinisekisa ukubambelela ngokuqinileyo kuzo zonke iimathiriyeli eziqhelekileyo zamaphepha angasemva{2}}kwanazo{3}}zinokonakala kwangaphambili okanye izitenxo zomphezulu." Oku kubambelela kubaluleke kakhulu ekuthinteleni ukungena kokufuma, oyena nobangela uphambili womonakalo ongakumbi we-backsheet kunye nokusilela kokugquma.

 

Uvavanyo kwiimathiriyeli ze-backsheet

Ijeli ye-polysiloxane yaqala ukuvavanywa kwiintlobo ezintlanu zezinto eziqhelekileyo ze-backsheet, ezibonisa iindidi zamacandelo asetyenziswa kwiimodyuli ze-PV kwiminyaka elishumi edlulileyo: co{0}}i-polyamide ekhutshwe (i-AAA backsheet); i-polyvinyl fluoride (PVF) -i-PET bilayer; i-polyvinylidine fluoride (PVDF) -i-PET bilayer; i-primer-i-PET egqunywe; kunye nentsha entsha ye-ethylene tetrafluoroethylene (ETFE){4} esekwe kwicomposite. Ezi zixhobo zikhethwe ngenxa yokusetyenziswa kwazo ngokubanzi kunye nokuba sesichengeni okwaziwayo ekuthotyweni kwexesha.

Iisampulu ezixande (3cm ububanzi, 12cm ubude) zasikwa kuhlobo ngalunye lwephepha elingasemva, kwaye ijeli yafakwa emoyeni -icala eliphandle lomcu ngamnye. "Umcu weshiti wesibini, icala lomoya ezantsi, labekwa phezu kwejeli{4}}isampulu egqunyiweyo kwaye yacinezelwa ngobunono ukuze kuzuzwe ubukhulu bejeli obuyi-1.2mm," iqela latsho. "Ijeli egqithisileyo yasuswa emacaleni, kwaye iisampulu zanyangwa kwi-25 degrees Celsius kunye ne-55% yomswakama ohambelana neentsuku ezingama-30. Ukulandela ukunyanga, iisampuli ziphantsi kokwaluphala okukhawulezileyo kwigumbi lemozulu kuma-85 degrees Celsius kunye ne-85% yomswakama ohambelanayo kwiiyure ze-1,000-ixesha eliqhelekileyo lovavanyo lwe-P.

Uhlalutyo -lovavanyo lubonise ukuba ijeli ibonise ukunamathela okukhethekileyo kuzo zontlanu iintlobo ze-backsheet, kunye ne-100% yokungaphumeleli kokubambisana okuqatshelwe kwisampulu nganye. Oku kubonisa ukuba iqhina phakathi kwejeli kunye ne-backsheet yayinamandla kunejeli ngokwayo, iqinisekisa{3}}ukuthembeka kwexesha elide kunye nokuxhathisa kwi-delamination.

 

Vavanya kwiiphaneli ezithotyiweyo zeminyaka esibhozo{{0}-ezidala

Emva koko, ijeli yavavanywa kwiimodyuli ze-PV eziguga kunye nee-backsheets ze-AAA eziye zasebenza iminyaka eyisibhozo kwaye zabonisa iimpawu ezinzulu zokuthotywa, kubandakanywa nokuqhekeka okunzulu kwe-longitudinal ngaphezu kweebhasi ze-cell kunye ne-surface brittleness. I-gel yachithwa ngokuthe ngqo kwiintanda usebenzisa i-cartridge echanekileyo, emva koko isasazeke ngokulinganayo phezu kwendawo yonke ye-backsheet kunye ne-spatula ebanzi ukwenza i-coating yokukhusela. Iimodyuli ezilungisiweyo zaye zafakwa kwigumbi elifanayo lemozulu kwiiyure ze-1,000 zokunyanga ukushisa okumanzi.

Imilinganiselo ethathwe emva kokuguga ibonise ukuba iintanda zavalwa ngokupheleleyo kwaye azisabonakali, kwaye iimodyuli ezilungisiweyo zifumene amaxabiso okumelana nokukhusela ngaphezu kwe-200 MΩ - ngokugqithise imfuneko yokhuseleko kwimodyuli ye-PV. "Nasemva kovavanyo olukhawulezayo lobushushu obumanzi, iimodyuli zigcine ukusebenza okuphezulu kwe-insulation kwaye zaphumelela uvavanyo lokuvuza okumanzi ngaphandle kweempawu zokungenwa komswakama," abaphandi baphawula. Oku kuqinisekisa amandla ejeli ukubuyisela ukhuseleko olubalulekileyo kunye neemetrics zokusebenza kwiimodyuli zokuguga.

 

Uvavanyo kwiplanti yelanga esebenzayo

Ukuqinisekisa{0}}ukusebenza kwehlabathi, iqela lophando liphumeze ubuchule bokulungisa kwi-10MW yeplanti yelanga e-Czech Republic, apho iimodyuli ezininzi ziye zafumana ukuthotywa kwe-backsheet. "Ijeli ye-polysiloxane isetyenziswe ebaleni ngaphandle kokuqhawula iimodyuli{3}}ikhutshwe kwikhatriji ephathwa ngesandla kwaye yagudiswa ngaphezulu kweshiti elingasemva ngespatula," iqela lagxininisa. "Iimodyuli ezilungisiweyo zayekwa ukuba zisebenze phantsi{5}}kweemeko zehlabathi zokwenyani kangangeenyanga ezintathu, ezivezwe kumaqondo obushushu ahlukeneyo, ukufuma, kunye nemitha ye-UV."

Iimvavanyo zokuvuza ezimanzi eziqhutywe emva kovavanyo lwentsimi luqinisekisile ukuba iimodyuli ezilungisiweyo zigcina ukuchasana kwe-insulation ephezulu kwaye zisebenza ngokuqhelekileyo, ngaphandle kokuhla kwemveliso yamandla xa kuthelekiswa neemodyuli ezingonakali. "Iziphumo zakwangoko zibonisa ukuba ijeli izinzisa ngokufanelekileyo ukusebenza kwemodyuli, nangona uvavanyo lwexesha elide{1}}kwiminyaka eliqela luyafuneka ukuvavanya ngokupheleleyo ukuqina kwayo," batsho abaphandi. "Umbuzo ongundoqo oseleyo ngowokuba ingaba i-backsheet elungisiweyo inokuhambelana{3}}nexesha elide lokusebenza komqobo wokufuma, ngakumbi kwimimandla enemozulu embi kakhulu."

Uphando lwapapashwa kwiphepha elithi "Field{0}}esebenzayo i-polysiloxane gel yokulungiswa kwee-backsheets zemodyuli ye-photovoltaic ethotyiweyo" kwiJenali ye-Photovoltaics yoPhando. Iqela lophando libandakanya izazinzulu ezisuka kwiSiltech Solutions Czech Republic, iAustrian Research Institute for Chemistry and Technology (OFI), kunye neCzech Technical University ePrague{2}}ulwakhiwo kwiinzame zentsebenziswano ukuphuhlisa iindleko{3}}izisombululo zolondolozo lwePV ezisebenzayo, ezizinzileyo.