Asebenza kanjani amabhethri e-Redox Flow
Ukuhlukaniswa kwamandla namandla kuwumehluko oyinhloko wama-RFB, uma kuqhathaniswa namanyeamasistimu okugcina ama-electrochemical. Njengoba kuchaziwe ngenhla, amandla esistimu agcinwa kumthamo we-electrolyte, okungaba kalula nangokwezomnotho kube kububanzi bamahora angama-kilowatt kuya kumashumi ama-megawatt-amahora, kuye ngobukhulu beamathangi okugcina. Amandla esistimu anqunywa ubukhulu besitaki samaseli e-electrochemical. Inani le-electrolyte eligeleza kusitaki se-electrochemical nganoma isiphi isikhathi akuvamile ukuba libe ngaphezu kwamaphesenti ambalwa yenani eliphelele le-electrolyte ekhona (ngezilinganiselwa zamandla ezihambisana nokuphuma kwamandla alinganiselwe amahora amabili kuya kwayisishiyagalombili). Ukugeleza kungamiswa kalula ngesikhathi sephutha. Njengomphumela, ukuba sengozini kwesistimu ekukhishweni kwamandla okungalawuleki esimweni sama-RFB kukhawulelwe ukwakheka kwesistimu kumaphesenti ambalwa wengqikithi yamandla agciniwe. Lesi sici siphambene nezakhiwo ezihlanganisiwe, ezihlanganisiwe zesitoreji seseli (i-lead-acid, i-NAS, i-Li Ion), lapho amandla aphelele esistimu exhunywe ngaso sonke isikhathi futhi etholakalayo ukuze akhishwe.
Ukuhlukaniswa kwamandla namandla nakho kunikeza ukuguquguquka kwedizayini ekusetshenzisweni kwama-RFB. Amandla wamandla (usayizi wesitaki) angafanelana ngokuqondile nomthwalo ohlobene noma impahla ekhiqizayo. Amandla okugcina (usayizi wamathangi okugcina) angenziwa ngokuzimela ehambisana nesidingo sokugcina amandla sohlelo oluthile. Ngale ndlela, ama-RFB anganikeza ngokomnotho isistimu yokugcina ethuthukisiwe yohlelo ngalunye. Ngokuphambene, isilinganiso samandla kumandla sigxilile kumaseli ahlanganisiwe ngesikhathi sokuklama nokukhiqizwa kwamaseli. Umnotho wesikali ekukhiqizeni amaseli ukhawulela inani elingokoqobo lemiklamo ehlukene yamaseli etholakalayo. Ngakho, izinhlelo zokusebenza zokugcina ezinamaseli ahlanganisiwe ngokuvamile zizoba namandla eqile noma amandla.
Ama-RFB angahlukaniswa abe izigaba ezimbili: 1) iqinisoamabhethri okugeleza kwe-redox, lapho zonke izinhlobo zamakhemikhali ezisebenzayo ekugcineni amandla zincibilika ngokuphelele kusixazululo ngaso sonke isikhathi; kanye 2) namabhethri okugeleza kwe-hybrid redox, lapho okungenani uhlobo lwekhemikhali olulodwa lugqitshwa njengento eqinile kumaseli e-electrochemical ngesikhathi sokushajwa. Izibonelo zama-RFB eqiniso zihlanganisaizinhlelo ze-vanadium-vanadium ne-iron-chromium. Izibonelo zama-RFB ayingxube zifaka i-zinc-bromine kanye nezinhlelo ze-zinc-chlorine.
Isikhathi sokuthumela: Jun-17-2021