Icephobic Surfaces Rau Ice, Snow Shedding hauv Utility Scale Solar
Dec 13, 2021
Cov kws tshawb fawb Asmeskas tau tsim cov txheej txheem txheej txheej uas tau thov kom muaj txiaj ntsig zoo rau kev rov ua dua, tsis muaj kev cuam tshuam ntawm cov daus thiab dej khov hauv cov khoom siv hluav taws xob hnub ci cov nroj tsuag hla ntau qhov kub qis qis mus txog -35 degrees Celsius.
“Nrog qee qhov kev sim ntxiv, peb cov thev naus laus zis yuav siv tau tam sim ntawd rau kev teeb tsa lub hnub ci tiag tiag,” kev tshawb fawb tus sau, Anish Tuteja, hais rau pv magazine.“Peb npaj yuav ua qhov kev sim txuas ntxiv sai sai, qhov twg cov txheej yuav raug sim rau ob peb xyoos ntawm cov hnub ci sab nraum zoov.”
Qhov 50μm txheej muaj ib qho optically pob tshab nto uas nthuav tawm ob qho tib si tsis tshua muaj dej khov interfacial adhesion thiab toughness. Nws tau raug tsim los ntawm kev siv cov tshuaj nruab nrab-chain triglyceride (MCT) roj nrog cov ntsiab lus hnyav ntawm 60wt% rau plasticize ob hom kev lag luam polymer polyvinyl chlorides hu ua MC2 thiab MC6, feem.
Ob qhov kev daws teeb meem tau sim nyob rau hauv ib lub subset ntawm 72-cell panels ntsuas 2x1m ntawm daim phiaj-tied PV system ua haujlwm los ntawm Alaskan utility hauv Fairbanks thaum lub caij ntuj no ntawm 2019 thiab 2020. Lub kaum sab xis ntawm lub installation tau teeb tsa ntawm 45 degrees los pab txhawb. daus poob, thiab tag nrho 16 modules siv rau qhov kev sim tau nruab nrog micro-inverters. Ob qho kev daws teeb meem MC2 thiab MC6 tau siv rau lub iav iav thiab cov qauv tsim.
Cov panels tau nruab plaub-up nyob rau hauv toj roob hauv pes orientation thiab txhua kem nrog coated panels raug cais los ntawm ib kem hosting uncoated panels.“Cov ntaub ntawv ntawm cov daus daus tau sau los ntawm kev tshawb fawb-qib lub koob yees duab nyob ib txwm [ly] rau txhua qhov array thiab nrog rau thaj tsam ntawm kev pom txaus los ntes tag nrho array ntawm kev sim panels,” cov kws tshawb fawb tau piav qhia.“Nyob rau hauv ib qho teeb meem ntawm feeb, ob qho tib si MC2 thiab MC6 kab tau pom cov daus nrawm nrawm, txheeb ze rau cov kab tswj tsis muaj coated, nrog cov daus npog txo los ntawm 61% thiab kwv yees li 32% ntawm MC2 thiab MC6 [-coated panels], feem.”
Cov vaj huam sib luag uas tsis muaj coated, los ntawm qhov sib txawv, tseem npog tag nrho los ntawm cov daus thiab dej khov thaum lub sijhawm sim thiab muaj peev xwm tsim tau yuav luag xoom hluav taws xob. Kev tshem tawm daus los ntawm cua yog tsawg heev thaum lub sij hawm sim, raws li cua nrog ceev ceev tau sau npe.
Cov kws tshawb fawb pom tau tias cov tshuaj MC2 ua tiav qhov kev ua tau zoo tshaj plaws, ua rau thaj tsam ntawm qhov nruab nrab ntawm cov daus npog tsuas yog 27.7%, thaum MC6 kev daws tau ua tiav qhov nruab nrab ntawm 45.4%. Cov yav tas tau pom tias muaj zog mechanical zog, uas kuj coj delamination rau panels. Tus qub tswj hwm nws qhov kev ua tau zoo thiab ruaj khov nyob rau 77 hnub ntawm qhov kev sim.
Cov kws tshawb fawb tau hais tias cov txheej txheem txheej txheem tuaj yeem tso ntau hom daus thiab dej khov thiab hais tias nws kuj tseem tuaj yeem siv rau kev tsim PV.“Tus nqi ntawm cov khoom yuav tsum yog tsawg,” Tuteja hais rau pv magazine.“Kuv yuav kwv yees lawv tsawg dua $ 1 ib square footage.”
Cov txheej txheem tshiab yog npaj rau hauv daim ntawv Kev Ua Haujlwm Loj-Scale Snow Shedding los ntawm In-Field Solar Arrays siv Icephobic Surfaces nrog Low-Interfacial Toughness, luam tawm hauv Cov Khoom Siv Hluav Taws Xob. Cov pab pawg tshawb fawb suav nrog cov kws tshawb fawb los ntawm University of Michigan, University of Alaska, thiab US Department of Energy' s Sandia National Laboratories.
