Ukuthuthukiswa kokusebenza kahle kwezinjini ezivuthayo kuholele ekwehleni kwezinga lokushisa legesi ephumayo.Ukuqiniswa ngasikhathi sinye kwemikhawulo yokukhipha intuthuko kudinga izindlela eziyinkimbinkimbi kakhulu zokulawula ukungcola, okuhlanganisangemva kokwelashwaokusebenza kahle kwayo kuncike kakhulu ekushiseni kwegesi ephumayo.
I-exhaust enezindonga eziphindwe kabili futhiizindlu ze-turbineamamojula enziwe ngeshidi lensimbi asetshenziswe ezinjinini zikaphethiloli kusukela ngo-2009. Anikeza amandla ezinjini zesimanje zikaDiesel ukunciphisa kokubili ukukhishwa kwezinto ezingcolile kanye nokusetshenziswa kukaphethiloli.Baphinde banikeze izinzuzo mayelana nesisindo sengxenye kanye namazinga okushisa angaphezulu uma kuqhathaniswa nezingxenye zensimbi. ububanzi obungama-20 kuye ku-50%, kuye ngedizayini yenjini, isigaba se-inertia yemoto, nomjikelezo wokushayela, uma kuqhathaniswa nesistimu yokukhipha umoya eyisisekelo efakwe i-cast cast iron exhaust eninginingi kanye nezindlu ze-turbine.
Ngokusetshenziswa kwamasu e-EGR athuthukisiwe, ukunyuka kwamazinga enjini ngaphandle kwe-NOx kungavunyelwa ngokusebenzisa izinga eliphezulu lokuguqulwa le-NOx ku-SDPF.Ngenxa yalokho, amandla akonga uphethiloli afinyelela ku-2% abonwa ku-WLTP futhi Okunye ukuthuthukiswa kobuchwepheshe ezinjinini zikadizili kuyadingeka ukuze kugcwaliseke umthetho oqinile wegesi yokukhipha umoya kanye nokwehliswa kanye kanye kokuphuma kwe-CO2.E-EU nakwamanye amazwe, ukuthuthukiswa kwezinqubo ezigunyaziwe, njenge-Worldwide harmonised harmonised Light vehicles Test Procedure (WLTP) kanye nemikhawulo ye-real driving emissions (RDE)) cishe kuzokwethulwa.Ukwethulwa kwalezi zinqubo eziqinile kuzodinga ukuthuthukiswa okwengeziwe ekusebenzeni kahle kwesistimu.Ngokungeziwe ku-DOC kanye nesihlungi se-diesel particulate (DPF), izinjini zesikhathi esizayo zizohlonyiswa nge-NOx ngemva kwedivayisi yokwelapha efana ne-NOx storage catalyst noma i-elective catalytic system reduction.
Ireferensi
I-Bhardwaj O. P, Lüers B, Holderbaum B, Kolbeck A, Köfer T (ed.), “Izinhlelo Ezintsha, Ezihlanganisiwe ezine-SCR Yamazinga Okuphuma Okuqinile Okuzayo e-US & EU,” I-13th International Stuttgart Symposium ye-Automobile and Engine Technology, e-Stuttgart , 2013.
Isikhathi sokuthumela: May-23-2022