Usosayensi eCanada wenze isiphakamiso sokuhlanganisa ukukhiqizwa kwamandla e-PV ophahleni ne-alkaline electrolyzer kanye ne-fuel cell ukuze kukhiqizwe i-hydrogen ezakhiweni. Uhlelo olusha luhloselwe ukunika amandla isitoreji samandla sesizini nokunciphisa izindleko ezilinganisiwe zamandla zasekhaya.
Abacwaningi abavela e-Toronto Metropolitan University bahlongoze ukuhlanganisa amasistimu e-hydrogen fuel cell kanye nokukhiqizwa kwe-PV ophahleni ekwakheni izinhlelo zokusebenza.
Bahlole ukumiswa kwesistimu enjalo eyingxube elabhorethri ye-BeTOP, etholakala ekhempasini yenyuvesi e-Toronto, ukuze bathole ukuqonda mayelana nokusetshenziswa okungenzeka kwe-hydrogen njengesu lokulondoloza isizini ezakhiweni.
Uhlelo oluhlongozwayo luhlanganisa amaphaneli e-photovoltaic, i-alkaline electrolyzer, i-compressor, i-gaseous hydrogen storage unit, i-fuel cell system, ama-inverters, kanye nesistimu yokulawula elawula ukusatshalaliswa kwamandla ngaphakathi kwesistimu. Lesi sakhiwo siphinde sibe namaphampu okushisa omthombo womoya wokufudumeza nokupholisa, kanye nesistimu ecwebezelayo ye-hydronic.
"Uhlelo lwe-PV lukhiqiza amandla kagesi, futhi iyunithi yokulawula ecatshangelwayo iqapha ukuthi amandla akhiqizwayo angakwazi ukumboza umthwalo wesakhiwo, kuhlanganise nesidingo sokushisa nokupholisa esinikezwa uhlelo lwepompo lokushisa lomthombo womoya," kuchaza ososayensi. Uma kwenzeka kukhiqizwa amandla anqwabelene, iyunithi ye-electrolyzer ikhiqiza i-hydrogen futhi, lapho idingeka, i-hydrogen egciniwe idluliselwa kuphethiloli yamangqamuzana aphehla ugesi ukuze ivale ukuntuleka kwamandla ohlelweni.”
I-hydrogen ekhiqizwa iyunithi ye-electrolysis igcinwa ethangini lokugcina igesi ezingeni lokushisa elingu-20 C bese isetshenziswa i-fuel cell kuye ngesidingo sikagesi wesakhiwo.
Iqembu lifanekisele uhlelo oluyingxube ngesofthiwe ye-TRNSYS, esetshenziselwa ukulingisa ukuziphatha kwezinhlelo ezivuselelekayo zesikhashana, futhi lasebenzisa indlela yokusabela kwendawo (RSM), evame ukusetshenziselwa ukubikezela ubudlelwano phakathi kwezincazelo ezimbalwa eziguquguqukayo kanye nokuhlukahluka kwempendulo eyodwa noma ngaphezulu, ukulingisa ukusebenza kwesistimu ehlongozwayo.
Ukuhlaziywa kubonise ukuthi i-electrolyzer isebenza ngokusebenza kahle okuphansi phakathi nobusika, ngenxa yamazinga aphansi emisebe yelanga, kuyilapho ngesikhathi sasehlobo ifinyelela ukukhiqizwa okuphezulu, nesimo sokushaja (SOC) se-sytem sikhula kakhulu phakathi kukaMeyi no-Agasti.
"Imiphumela ikhombisa ukuthi uhlelo oluyingxubevange ngoJuni noJulayi lunokuncika kwegridi okungenani okungu-33.2 kWh no-41.3 kWh kuphela wokusetshenziswa kukagesi wegridi, ngokulandelana, kanti ngoDisemba, ngaphezu kuka-88 % womthwalo odingekayo kufanele uhlinzekwe yigridi," kuchaza abacwaningi.
Ukulingisa kuphinde kwagcizelela isidingo sokugcina ugesi we-PV nge-electrolysis enkathini yasehlobo, njengoba ukukhiqizwa kwamandla elanga kudlula izikhathi ezingu-2.5 zomthwalo wesakhiwo odingekayo.
"Imiphumela ikhombisa ukuthi amandla kagesi akhiqizwa i-fuel cell enkathini yasehlobo ahambisana ngokwesilinganiso nama-31% okukhiqizwa kukagesi ngamaseli e-PV," kugcizelela iqembu locwaningo. "Kuyaphawuleka futhi ukusho ukuthi inani eliphakeme lokukhiqizwa kwamandla ngamaseli kaphethiloli ngoJanuwari uma kuqhathaniswa nalelo lohlelo lwe-PV libangelwa izinga lokuqala lethangi lokugcina i-hydrogen ekuqaleni kokulingisa."
Izifundiswa ziphinde zathola ukuthi ukucushwa kwesistimu efanelekile yesakhiwo esikhethiwe kuzodinga u-39.8 m2 amaphaneli elanga ahlanganiswe ne-3.90 m3 ithangi lokugcina i-hydrogen. Baphinde bathola ukuthi uhlelo oluxubile lungase luzuze izindleko ezilinganiselwe zamandla (i-LCOE) kusukela ku-$0.389/kWh ukuya ku-$0.537/kWh.
Uhlelo lwenoveli lwachazwa ocwaningweni oluthi “Net-zero energy management ngokusebenzisa i-multi-criteria optimizations ye-hybrid solar-hydrogen energy system yelabhorethri e-Toronto, eCanada,” esanda kushicilelwa ku. Amandla Nezakhiwo.
"Kuzoba usizo ukwenza uphenyo oluqhathaniswayo phakathi kokusebenza kwe-techno-enviro-economic yalolu cwaningo kanye nenye indlela yokusebenzisa izinhlelo zokugcina amandla ebhethri (BESS)," kusho ososayensi bebhekisela ekuqondisweni kwesikhathi esizayo komsebenzi wabo. "Lokhu kuhlaziya kunganwetshwa futhi endabeni yokusebenzisa kokubili isitoreji se-hydrogen kanye ne-BESS ngokuthuthukisa umnotho ngendlela efanele ukuze kuncishiswe izindleko ezishiwo ngenhla."
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