Tsis ntev los no hailstorms hauv Tebchaws Europe thiab North America tau ua rau ntau lub PV kev teeb tsa thiab ua kom muaj kev sib cav txog seb lub tshuab hluav taws xob hnub ci tuaj yeem tiv thaiv los ntawm cov xwm txheej tsis tuaj yeem tshwm sim. Ib txoj kev tshawb fawb los ntawm Dutch cov kws tshawb fawb hauv xyoo 2019 tau qhia tias kev puas tsuaj rau lub hnub ci vaj huam sib luag yog feem ntau tshwm sim los ntawm hailstones ntsuas tsawg kawg 3 cm loj.
Ib txoj kev tshawb fawb tshiab los ntawm Is Nrias teb tam sim no hais tias cov iav pem hauv ntej siv rau hnub ci vaj huam sib luag, nrog lub thickness txog li 3.2 hli, tej zaum yuav tsis txaus los tiv thaiv cov modules nyob rau hauv cov cheeb tsam uas muaj cua daj cua dub. Raws li cov kws tshawb fawb, txawm hais tias kev lag luam PV feem ntau siv cov panels nrog cov tuab ntawd, yuav tsum siv lub iav pem hauv ntej ntawm tsawg kawg 4 hli.
"Hail nrog ib txoj kab uas hla ntawm 20 hli mus rau 30 hli yog qhov tseem ceeb heev rau hnub ci PV," tus kws sau ntawv Nallapaneni Manoj Kumar hais. "Kev puas tsuaj feem ntau yog cuam tshuam nrog cov qauv, ua rau txo qis ntawm tag nrho lub zog tsim hluav taws xob, thiab qee zaum kuj poob rau hauv kev ua haujlwm lifespan."
Tshaj tawm hauvRenewable Zog,"Kev soj ntsuam ntawm cov lawg cuam tshuam rau kev ua haujlwm ntawm cov khoom lag luam photovoltaic modules ntawm qhov sib txawv ntawm cov iav pem hauv ntej" qhia tias cov qauv IEC durability tests rau lawg tej zaum yuav tsis txaus, vim tias kev sim cov pob dej khov ntau dua 25 hli tsuas yog xaiv tau.
Cov pab pawg tau muab piv rau peb PV modules nrog cov thicknesses sib txawv rau lawv cov iav pem hauv ntej - 2.8 hli, 3.2 hli, thiab 4 hli - nyob rau hauv ntau qhov ntau thiab tsawg, qhov hnyav, thiab tshaj tawm.
Kev tsom xam pom tau tias, tom qab raug ntaus nrog 45 hli dej khov pob, lub module nrog lub iav thinnest poob 21.8 feem pua ntawm nws lub zog tso zis, thiab 3.2 hli module poob 11.74 feem pua. Lub thickest module kuaj poob tsuas yog 0.81 feem pua tom qab raug ntaus nrog cov lawg loj tib yam, thiab thaum kuaj tawm tsam 55 hli lawg poob 1.13 feem pua. Cov pob dej khov loj dua tsis tau sim, cov kws tshawb fawb tau hais tias, vim lawv tsis tshua muaj.
Qhov poob ntawm cov zis yog vim tawg. "Cracks feem ntau imperceptible rau qhov muag liab qab," cov kws tshawb fawb tau sau tseg. "Lawv tej zaum yuav ua rau cov hluav taws xob tsis sib txuas ntawm tes, ua rau muaj kev poob qis hauv qhov luv luv tam sim no thiab ua rau muaj kev tiv thaiv ntau ntxiv, txo qis lub zog tso tawm ntawm module."
Nrog lub pob 45 hli, cov kab nrib pleb hnyav heev tau pom ntawm 2.8 hli thiab 3.2 hli panels. Nyob rau hauv cov ntaub ntawv ntawm lub thickest vaj huam sib luag, txawm li cas los xij, tsuas yog microcracks tau pom thaum nws raug ntaus nrog tib lub pob. "Microcracks tuaj yeem ua rau hluav taws xob sib cais, ua rau ib feem ntawm lub xov tooj ntawm tes tsis ua haujlwm," pab pawg tshawb fawb tau piav qhia.
Cov kws tshawb fawb kuj tau lees paub tias tag nrho peb lub vaj huam sib luag tau ntsib cov dej ntws tawm tam sim no - uas yog, txo qis hauv lawv lub peev xwm los tiv thaiv cov av noo thiab ntub dej - tom qab raug ntaus nrog 45 hli lawg. Lub vaj huam sib luag thickest poob 27.23 feem pua ntawm nws qhov kev tawm tsam, thaum nruab nrab ib qho poob 46.81 feem pua, thiab cov thinnest poob 55.25 feem pua.
"Kev sib raug zoo ntawm cov lawg thiab kev puas tsuaj rau zero emissions ntsuas yog fascinating, tshwj xeeb tshaj yog muaj feem yuav muaj hailstorms ntxiv vim huab cua hloov nyob rau hauv feem ntau ntawm cov teb chaws Europe," lawv hais. "Vim tias cov tuam txhab tuav pov hwm muaj zog tiv thaiv lawv qhov raug thiab cov khoom lag luam module tsis muab kev tiv thaiv tiv thaiv kev puas tsuaj, cov tswv lag luam thiab cov tub ua lag luam raug tso tseg rau kev pheej hmoo."
