Kusankha Batri Yoyenera ya Ma Studs a Msewu wa Solar: Ni-MH vs. Lithium

Ponena za ma solar road stud, batire ndiye mtima wa dongosololi. Imasunga mphamvu zomwe zimagwidwa ndi photovoltaic panel masana ndipo imayatsa ma LED usiku, zomwe zimatsimikiza mwachindunji nthawi yomwe stud imatha kuunikira msewu, momwe imagwirira ntchito bwino m'nyengo zosiyanasiyana, komanso nthawi zomwe imafunika kusinthidwa. Masiku ano, ma chemistry awiri a mabatire ndi omwe amalamulira msika: Nickel-Metal Hydride (Ni-MH) ndi Lithium (nthawi zambiri Li-ion kapena LiFePO₄). Kumvetsetsa kusiyana kwawo ndikofunikira posankha stud yoyenera ya solar road stud pa ntchito yanu, kaya ndi msewu waukulu, malo odutsa anthu oyenda pansi, kapena msewu wopita ku eyapoti.

Mabatire a Ni-MH akhala akugwiritsidwa ntchito kwambiri pa ma solar road stud kwa zaka zambiri. Amayamikiridwa chifukwa cha kulimba kwawo komanso chitetezo chawo. Chimodzi mwa mphamvu zazikulu za mankhwala a Ni-MH ndi kuthekera kwawo kupirira kutentha kwambiri, makamaka nyengo yozizira. Ngakhale mabatire a lithiamu amavutika kuyitanitsa mphamvu pansi pa kuzizira, maselo a Ni-MH amatha kugwira ntchito ndikuyitanitsa mphamvu moyenera kutentha kotsika mpaka -20°C popanda ma circuits apadera oteteza. Izi zimapangitsa Ni-MH kukhala chisankho chodalirika cha madera omwe amakumana ndi nyengo yozizira kwambiri. Kuphatikiza apo, mabatire a Ni-MH ndi okhazikika mwachibadwa ndipo sapereka chiopsezo cha kutentha kapena moto, ngakhale street stud itasweka ndi galimoto yolemera. Amakhalanso otsika mtengo kwambiri, zomwe zingakhale chifukwa chosankha mapulojekiti akuluakulu aboma okhala ndi bajeti yochepa. Komabe, mabatire a Ni-MH ali ndi zoletsa. Ali ndi mphamvu zochepa, zomwe zikutanthauza kuti ndi olemera komanso okulirapo kuposa momwe amasungira. Izi zimalepheretsa momwe street stud ya solar ingakhalire yopyapyala komanso yaying'ono. Chofunika kwambiri, mabatire a Ni-MH amavutika ndi kuchuluka kwakukulu kotulutsa mphamvu zawo: amatha kutaya mphamvu zawo zosungidwa pamwezi 15 mpaka 20%. Pambuyo pa masiku angapo otsatizana a mitambo, chipangizo choyatsira magetsi cha Ni-MH sichingakhale chowala usiku wonse. Nthawi zambiri mphamvu yawo yoyendera magetsi imakhala pafupifupi ma charges mazana asanu mpaka mazana asanu ndi atatu, zomwe ndi zokwanira koma sizili bwino.

Mabatire a Lithium, makamaka mtundu wa Lithium Iron Phosphate (LiFePO₄), akhala muyezo wamakono wa ma stud a misewu apamwamba a dzuwa. Ubwino wawo waukulu uli mu kuchuluka kwa mphamvu. Batire ya lithiamu imatha kusunga mphamvu yofanana mu phukusi lomwe ndi lopepuka 40 mpaka 50 peresenti komanso lochepa kwambiri kuposa Ni-MH yofanana. Izi zimathandiza opanga kupanga ma stud a misewu otsika, omwe satha kuchotsedwa ndi ma snowplaw kapena magalimoto ambiri. Mabatire a Lithium nawonso amachita bwino kwambiri podzitulutsa okha, kutaya ma 2 mpaka 3 peresenti yokha ya mphamvu yawo pamwezi. Zotsatira zake, stud ya misewu ya solar yokhala ndi mphamvu ya lithiamu imatha kugwira ntchito pambuyo pa sabata yonse ya mitambo yamvula, kupereka kuwala kosalekeza pamene ikufunika kwambiri. Kuphatikiza apo, mabatire a lithiamu amapereka moyo wautali kwambiri, nthawi zambiri kufika pa ma 1500 mpaka 2500 otulutsa magetsi. Izi zikutanthauza kuti amatha kukhala nthawi yayitali katatu kapena kanayi kuposa mabatire a Ni-MH asanafunike kusinthidwa, kuchepetsa ndalama zosamalira nthawi yayitali. Ubwino wina ndi mphamvu yokhazikika ya magetsi: maselo a lithiamu amapereka mphamvu yofanana mpaka atatsala pang'ono kutha, kotero ma LED amawala bwino usiku wonse m'malo mozimitsa pang'onopang'ono.

Komabe, mabatire a lithiamu ali ndi zovuta. Kufooka kwawo kwakukulu ndi kukhudzidwa ndi kutentha kochepa akamachaja. Pansi pa 0°C, kuchaja batire ya lithiamu yokhazikika kungayambitse kuwonongeka kosatha. Ngakhale maselo a LiFePO₄ amawongolera magwiridwe antchito otsika kutentha, amafunikirabe njira zoyendetsera mabatire zomwe zimasiya kuchaja munthawi yozizira kapena kugwiritsa ntchito mphamvu zochepa zosungidwa kuti zitenthetse maselo kaye. Izi zimawonjezera zovuta komanso mtengo. Kuphatikiza apo, mabatire a lithiamu ali ndi mtengo wapamwamba kwambiri, nthawi zambiri amakhala 30 mpaka 50 peresenti kuposa Ni-MH. Maselo a lithiamu otsika mtengo amathanso kubweretsa zoopsa zachitetezo ngati magetsi oteteza alephera, ngakhale opanga odalirika amachepetsa izi ndi mapangidwe olimba.

Ndiye ndi batire iti yomwe muyenera kusankha pa ma solar road stud anu? Yankho lake limadalira kwambiri nyengo yanu, zofunikira pa ntchito, komanso bajeti. Kwa madera omwe ali ndi nyengo yozizira yayitali, Ni-MH ikadali chisankho chotetezeka komanso chotsika mtengo chifukwa imatha kuchajidwa popanda chitetezo chapadera. Pa nyengo yofunda pang'ono mpaka yotentha, kapena pakugwiritsa ntchito komwe mawonekedwe ake ochepa komanso kudziyimira pawokha kwa nthawi yayitali ndizofunikira kwambiri, lithiamu - makamaka LiFePO₄ - ndiye njira yabwino kwambiri. Imadzitulutsa yokha pang'ono, nthawi yayitali yozungulira, komanso kuwala kokhazikika kumapereka phindu labwino pa moyo wonse wa chinthucho. Pamapeto pake, mitundu yonse ya mabatire yatsimikizira kudalirika kwawo m'ma solar road stud ambiri padziko lonse lapansi. Mukamvetsetsa mawonekedwe awo apadera, mutha kupanga chisankho chodziwikiratu chomwe chimasunga misewu yanu kukhala yotetezeka komanso yayitali.