Silicone Sealant Yakusunkhunyika Yakunozga Mapepala Ghakumanyuma gha Solar Module Yakunangika

Gulu la kafukufuku la ku Czech-Austria lapanga gel ya polysiloxane iyo yikugwira ntchito makora chomene ndipo yinganozga makora ma backsheet gha solar module agho ghanangika, kuwezgerapo katundu wawo wakuvikilira na kusazgirako umoyo wa vipangizo vyakuchekura vya photovoltaic (PV). Nthowa iyi yikulongosora suzgo likuru ilo ŵakukumana nalo awo ŵakugwira ntchito pa vyakumera vya zuŵa, pakuti kunanga kwa backsheet-makamaka mu ma module agho ghapangika pafupifupi 2010-kanandi kukupangiska kuti ŵanthu ŵaŵe na chitima na kutaya nkhongono zinandi.

Ŵakufufuza ŵakagwiliskira nchito gel wapadera wa polysiloxane, uyo wakapangika pamoza na kampani yakupanga silikoni ya ku Czech - Siltech Solutions, iyo kanandi yikugwiriskirika nchito nga ni wovwiri wakuŵikamo vigaŵa vya PV. Mwakupambana na vinthu ivyo ŵakagwiliskiranga ntchito pakunozga vinthu vyakukhozga, gulu ili likasintha gel iyi kuti yiŵe yakukhora chomene, ndipo yikazuzga nanga ni vigaŵa vichokovichoko na kupanga chigaŵa chambura msoko chakuvikilira pa vithuzithuzi vyakumanyuma ivyo vyanangika. Gel iyi yili na silikoni-based polymer matrix, yakukhozgeka na fumed silica nga ni filler kuti yiŵe yakukhora, ndiposo chinyezi-chochizga wovwiri uwo ukupangiska kuti yiŵe yakukhora para yakhwaskika na mphepo yakuzungulira na chinyezi.

"Chinyezi-chiyambiska ndondomeko ya kuchizga chikulutilira kufuma pa charu chapasi kuya kuwaro, ndipo gel yikukhoma pachokopachoko apo chinyezi chikuthandazgika mu vinthu," ŵakalongosora ŵakusanda. "Para yachizgika chomene, gel yikupanga elastomer yakusinthasintha na nkhongono yiwemi yakukhozga na kutambasuka, kukhozgera kuti vikukolerana chomene na vinthu vyose vyakumanyikwa vya backsheet -nanga ni ivyo vilipo kale -kunangika panji vyambura kwenelera." Kumatira uku nkhwakuzirwa comene kuti chinyezi cileke kunjira, ico nchifukwa cikuru cakuti backsheet yipwetekekeso ndiposo kuti insulation yileke kugwira nchito makora.

 

Yezgani pa vinthu vyakulembeka pa backsheet

Gel ya polysiloxane yikayezgeka dankha pa mitundu yinkhondi na umoza ya vinthu vyakumanyikwa vyakuwoneka, kulongora mitundu yakupambanapambana ya vigaŵa ivyo vikugwiriskirika nchito mu vigaŵa vya PV mu virimika khumi ivyo vyajumpha: co-extruded polyamide (AAA backsheet); polyvinyl fluoride (PVF) -PET vigaŵa viŵiri; (PVDF) -PET bilayer; mtundu wa PET wakuphakazgika -; na chinthu chiphya icho chikupangika na etileni (ETFE) -. Vinthu ivi vikasankhika chifukwa chakuti vikugwiriskirika nchito chomene ndiposo vikumanyikwa kuti vikunangika para nyengo yajumphapo.

Sampuli za makona ghatatu (3cm mu usani, 12cm mu utali) zikadumulika kufuma ku mtundu uliwose wa backsheet, ndipo gel yikaŵikika ku mphepo-mbali yakuwonekera ya mzere uliwose. "Mzere wachiŵiri wa backsheet, mphepo mbali pasi, ukaŵikika pachanya pa gel - sampulo yakuphakazgika na kukanizgika mwakuzika kuti yiŵe na gel yakuyana pafupifupi 1.2mm," gulu likalongosora mwakudumura. "Gel yakujumphizga yikafumiskikapo kufuma ku mphepete, ndipo masampulo ghakachizgika pa 25 degrees Celsius na 55% ya chinyezi cha mazuŵa 30. Pamanyuma pa kuchizgika, masampulo ghakaŵikika mu chipinda cha nyengo pa 85 degrees Celsius na 85% ya chinyezi kwa mazuŵa100. maora - mayeso ghakumanyikwa ghakukhalilira kwa chigaŵa cha PV."

Kuyezgelera kwa panyuma - kukalongora kuti gel yikalongora kuti yikukolerana chomene na mitundu yose yinkhondi na yiŵiri ya backsheet, ndipo 100% ya kutondeka kukolerana yikawoneka mu sampulo yiliyose. Ici cikulongora kuti ubwezi pakati pa gel na backsheet ukaŵa wankhongono comene kuluska gel iyo, kukhozgera kugomezgeka kwa nyengo yitali-na kukana ku delamination.

 

Yezgani pa mapanelo ghakale gha vyaka eyiti -

Pamanyuma, gel iyi yikayezgeka pa vigaŵa vya PV vyakucekura ivyo vikaŵa na AAA backsheets ivyo vikaŵa kuti vyagwira nchito kwa vilimika vinkhondi na viŵiri ndipo vikalongora vimanyikwiro vikuru vya kunangika, kusazgapo kugaŵikana kwakuzika kwa utaliko pachanya pa maselo gha busbars na kuphwanyika kwa pa charu. Gel iyi ŵakayiŵikanga mwaluŵiro mu viwangwa ivi mwakugwiliskira nchito katiriji wakunozga, ndipo pamanyuma ŵakayithandazga mwakuyana waka pa mtunda wose wa backsheet na spatula yikuru kuti ŵapange chinthu chakuvikilira. Pamanyuma pake ŵakaŵika vigaŵa ivyo ŵakanozga mu chipinda chimoza cha nyengo kwa maora 1,000 kuti ŵaviŵike pa moto wakunyeŵa.

Kupima uko kukachitika pamanyuma pa kuchekura kukalongora kuti vigaŵa ivyo vikang’ambika vikajalirika chomene ndipo vikawonekangaso yayi, ndipo vigaŵa ivyo vikanozgeka vikakwaniska kukanizga kuvikilira kwakujumpha 200 MΩ-kujumphizga chomene ivyo vikukhumbikwa kuti vigaŵa vya PV vigwirenge ntchito. “Nangauli ŵakayezga kutentha kwakunyeŵa mwaluŵiro, vigaŵa ivi vikalutilira kugwira ntchito makora ndipo vikajumpha mayeso ghakusefukira kwa maji kwambura vimanyikwiro vyakuti chinyezi chanjira,” ndimo ŵakusanda ŵakayowoyera. Ici cikukhozgera kuti gel yingawezgerapo vipimilo vyakuzirwa comene vya kuvikilirika na kugwira nchito mu vigaŵa vyakucekura.

 

Yezgani pa plant ya solar iyo yikugwira ntchito

Kuti ŵakhozgere umo vinthu vikwendera nadi pa charu chose, gulu lakufufuza likagwiliskira ntchito nthowa yakunozga pa fakitare ya 10MW ya zuŵa ku Czech Republic, uko vigaŵa vinandi vikaŵa kuti vyanangika pa backsheet. "Gel ya polysiloxane yikaŵikika mu munda kwambura kuphwanya vigaŵa - ivyo vikagaŵika kufuma ku katiriji yakunyamulika na kuseŵera pa mtunda wa backsheet na spatula," gulu likadidimizga. "Vinthu ivyo vikanozgeka vikalekeka kuti vigwirenge ntchito mu nyengo yeneco ya pa caru cose kwa myezi yitatu, ndipo vikaŵa pa nyengo yakupambanapambana ya kutentha, chinyezi, na UV radiation."

Kuyezgelera kwakusefukira kwa maji uko kukachitika pamanyuma pa kuyezgeka kwa munda kukakhozgera kuti vigaŵa ivyo vikanozgeka vikasunga nkhongono zakutetezgera ndipo vikagwiranga ntchito makora, kwambura kukhira kwa nkhongono pakuyaniska na vigaŵa ivyo vikanangika yayi. "Vinthu ivyo vikasangika pakwamba vikulongora kuti gel yikukhozga makora ntchito ya module, nangauli kuyezgeka kwa nyengo yitali - kwa vyaka vinandi kukukhumbikwa kuti ŵawone makora umo yikukhalira," ŵakayowoya ŵakusanda. "Fumbo lakuzirwa ilo lakhalako ndakuti kasi backsheet iyo yanozga yingayana na yakwamba - nyengo yitali yakukanizga chinyezi, chomenechomene mu vigaŵa ivyo muli nyengo ziheni chomene."

Kafukufuku uyu wakalembeka mu nyuzipepara yakuti “Munda -kugwiriskira ncito polysiloxane gel kunozga kwa vithuzithuzi vyakupangika na vithuzithuzi vyakunangika” mu Journal of Photovoltaics Research. Gulu la kafukufuku ili likaŵa na ŵasayansi ŵakufuma ku Siltech Solutions Czech Republic, Sukulu Yakufufuza vya Chemistry na Tekinoloje ya ku Austria (OFI), na Yunivesite ya Czech Technical ku Prague-kuzenga pa kuyezgayezga kwakukolerana kuti ŵapange nthowa zakunozga PV zambura kukhumbikwa ndalama zinandi, zakukhaliska.