Ukukhetha Ibhethri Elifanele Lama-Solar Road Studs: I-Ni-MH vs. I-Lithium
Uma kukhulunywa ngezikhonkwane zomgwaqo zelanga, ibhethri liyinhliziyo yesistimu. Ligcina amandla abanjwe yiphaneli ye-photovoltaic emini futhi linika amandla ama-LED ebusuku, linquma ngqo ukuthi i-stud ingakhanyisa umgwaqo isikhathi esingakanani, ukuthi isebenza ngokwethembeka kangakanani ezimweni ezahlukene zezulu, nokuthi idinga ukushintshwa kangaki. Namuhla, kunezinhlobo ezimbili zamakhemikhali ebhethri ezilawula imakethe: i-Nickel-Metal Hydride (Ni-MH) kanye ne-Lithium (ngokuvamile i-Li-ion noma i-LiFePO₄). Ukuqonda umehluko wazo kubalulekile ekukhetheni i-stud yomgwaqo yelanga efanele iphrojekthi yakho ethile, kungaba umgwaqo omkhulu, indawo yokuwela abahamba ngezinyawo, noma indlela yokugijima yesikhumulo sezindiza.
Amabhethri e-Ni-MH abelokhu esebenza njengenjwayelo kuma-solar road stud iminyaka eminingi. Ayaziswa ngenxa yokuqina kwawo nokuphepha kwawo. Elinye lamandla amakhulu e-Ni-MH chemistry yikhono lawo lokubekezelela amazinga okushisa aphezulu, ikakhulukazi isimo sezulu esibandayo. Ngenkathi amabhethri e-lithium ehluleka ukushaja ngaphansi kweqhwa, amaseli e-Ni-MH angasebenza futhi ashaje ngokuthembekile emazingeni okushisa aphansi njengo-20°C ngaphandle kwezifunda ezikhethekile zokuvikela. Lokhu kwenza i-Ni-MH ibe ukukhetha okuthembekile kwezifunda ezibhekana nobusika obunzima. Ngaphezu kwalokho, amabhethri e-Ni-MH azinzile ngokwemvelo futhi awabeki bungozi bokubaleka kokushisa noma umlilo, noma ngabe i-road stud iqhekeke yimoto esindayo. Aphinde athengeke kakhulu kusengaphambili, okungaba yisici esinqumayo kumaphrojekthi engqalasizinda yomphakathi amakhulu anesabelomali esincane. Kodwa-ke, amabhethri e-Ni-MH anemikhawulo. Anamandla aphansi, okusho ukuthi asinda futhi akhulu kakhulu ngomthamo ofanayo wokugcina. Lokhu kuvimbela ukuthi i-solar road stud ingaba mncane futhi incane kangakanani. Okubaluleke kakhulu, amabhethri e-Ni-MH ahlushwa izinga eliphezulu lokuzikhipha: angalahlekelwa ngamaphesenti ayishumi nanhlanu kuya kwamashumi amabili eshaja yawo egciniwe ngenyanga uma engasebenzi. Ngemva kwezinsuku eziningana ezilandelanayo ezinamafu, i-stud esebenza nge-Ni-MH ingase ingakhanyi ubusuku bonke. Impilo yomjikelezo wayo ivame ukuba phakathi kwamakhulu amahlanu kuya kwamakhulu ayisishiyagalombili, okwanele kodwa okungaphelele.
Amabhethri e-lithium, ikakhulukazi uhlobo lwe-Lithium Iron Phosphate (LiFePO₄), abe yindinganiso yesimanje yama-solar street stud asezingeni eliphezulu. Inzuzo yawo eyinhloko isekubunzimeni bamandla. Ibhethri le-lithium lingagcina inani elifanayo lamandla ephaketheni elilula ngamaphesenti angamashumi amane kuya kwamashumi amahlanu futhi lincane kakhulu kune-Ni-MH elingana nayo. Lokhu kuvumela abakhiqizi ukuthi bakhiqize ama-stud omgwaqo aphansi, anamandla omoya angenakukwazi ukuxoshwa yizimbobo zeqhwa noma ithrafikhi enkulu. Amabhethri e-lithium nawo avelele ekusebenzeni kwawo kokuzikhipha, elahlekelwa amaphesenti amabili kuya kwamathathu kuphela okushaja kwawo ngenyanga. Ngenxa yalokho, i-solar road stud efakwe amandla e-lithium ingahlala isebenza ngemuva kwesonto lonke lesibhakabhaka esimbozwe yiqhwa, ihlinzeka ngokukhanya okuqhubekayo lapho idingeka kakhulu. Ngaphezu kwalokho, amabhethri e-lithium anikeza impilo yomjikelezo ende kakhulu, evame ukufika emijikelezweni yokushaja engamakhulu ayisihlanu kuya kwamashumi amabili nanhlanu. Lokhu kusho ukuthi angahlala isikhathi eside kathathu kuya kane kunamabhethri e-Ni-MH ngaphambi kokudinga ukushintshwa, okunciphisa izindleko zokulungisa zesikhathi eside. Enye inzuzo ukuphuma kwamandla kagesi okuzinzile: amaseli e-lithium aletha amandla kagesi acishe ahlale njalo aze aphele cishe ngokuphelele, ngakho ama-LED akhanya ngokukhanya okugcwele ubusuku bonke kunokuba afiphale kancane kancane.
Kodwa-ke, amabhethri e-lithium awanazo izinselelo. Ubuthakathaka bawo obukhulu ukuzwela amazinga okushisa aphansi ngesikhathi sokushaja. Ngaphansi kuka-0°C, ukushaja ibhethri le-lithium elijwayelekile kungabangela umonakalo ohlala njalo. Ngenkathi amaseli e-LiFePO₄ ethuthukisa ukusebenza kahle kokushisa okuphansi, asadinga izinhlelo zokuphatha amabhethri ezakhelwe ngaphakathi eziyeka ukushaja ezimweni zokuqandisa noma zisebenzisa inani elincane lamandla agciniwe ukuze zifudumale amaseli kuqala. Lokhu kunezela ubunzima nezindleko. Ngaphezu kwalokho, amabhethri e-lithium anentengo ephezulu kusengaphambili, ngokuvamile amaphesenti angamashumi amathathu kuya kwamashumi amahlanu ngaphezu kwe-Ni-MH. Amaseli e-lithium asezingeni eliphansi nawo angaba yingozi yokuphepha uma isekethe yokuvikela yehluleka, yize abakhiqizi abadumile benciphisa lokhu ngemiklamo eqinile.
Ngakho-ke yiliphi ibhethri okufanele ulikhethele ama-solar road stud akho? Impendulo incike ngokuphelele esimweni sezulu sendawo yakho, izidingo zokusebenza, kanye nesabelomali. Ezifundeni ezinebusika obuhlala isikhathi eside obungaphansi kwe-zero, i-Ni-MH isalokhu iyisinqumo esiphephile nesingabizi kakhulu ngoba ingashaja ngaphandle kokuvikelwa okukhethekile. Ezimweni zezulu ezimaphakathi kuya kwezifudumele, noma ezisetshenziswayo lapho iphrofayili encane kanye nokuzimela okude kuyizinto eziza kuqala, i-lithium - ikakhulukazi i-LiFePO₄ - iyindlela engcono kakhulu. Ukukhipha kwayo okuphansi, impilo yomjikelezo omude, kanye nokukhanya okuzinzile kuletha inani elingcono phakathi nesikhathi somkhiqizo. Ekugcineni, zombili izinhlobo zamabhethri zibonakalise ukuthembeka kwazo ezigidini zama-solar road stud emhlabeni jikelele. Ngokuqonda izici zazo ezihlukile, ungenza isinqumo esinolwazi esigcina imigwaqo yakho iphephile, isikhathi eside.