Okutholwe okokuqala ocwaningweni lokuqala emhlabeni jikelele lomthelela ka-100% we-sustainable aviation fuel (SAF) kuzo zombili izinjini zendiza yezentengiselwano kunikeze imiphumela yokuqala ethembisayo.

Ucwaningo lwe-ECLIF3, olubandakanya Airbus, i-Rolls-Royce, isikhungo socwaningo saseJalimane i-DLR kanye nomkhiqizi wakwa-SAF u-Neste, iphawula okokuqala ngqa ukuthi i-100% ye-SAF ikalwa ngasikhathi sinye kuzo zombili izinjini zezindiza ezihwebayo ezithwala abantu - i-Airbus A350 indiza inikwa amandla izinjini Rolls-Royce Trent XWB.

Ukuhlola ukukhishwa kwekhabhoni endizeni kanye nokuhlolwa komhlaba okuhlobene ohlelweni lwe-ECLIF3 kuqale ekuqaleni kwalo nyaka futhi kuqale kabusha muva nje. Ithimba lezinhlaka ezihlukene, elihlanganisa nabacwaningi abavela kuMkhandlu Kazwelonke Wokucwaninga waseCanada kanye neNyuvesi yaseManchester, lihlela ukushicilela imiphumela yalo kumajenali ezemfundo ngasekupheleni konyaka ozayo nango-2023.

Okutholwe kulolu cwaningo kuzokweseka imizamo eqhubekayo e-Airbus naseRolls-Royce yokuqinisekisa ukuthi umkhakha wezokundiza ukulungele ukusetshenziswa kakhulu kwe-SAF njengengxenye yohlelo olubanzi lokuqeda ikhabhoni embonini. Izindiza okwamanje zivunyelwe kuphela ukusebenza ngengxube engu-50% ye-SAF kanye nophethiloli wejethi ojwayelekile, kodwa zombili izinkampani ziyawusekela umkhankaso wokuqinisekisa ukusetshenziswa kwe-SAF okungu-100%.

Ngo-Ephreli, i- A350 indize izindiza ezintathu phezu koLwandle iMedithera ilandelwa indiza ejaha i-DLR Falcon ukuze iqhathanise ukukhishwa kwekhabhoni endizeni kokubili kukaphalafini kanye nophethiloli oqhubekayo we-Neste's hydroprocessed esters and fatty acids (HEFA). Ithimba liphinde lenza izivivinyo zokuthobela imithetho lisebenzisa i-100% ye-SAF futhi azikho izinkinga zokusebenza ezitholakele.

Ukuhlolwa kokukhipha ukungcola endizeni kusetshenziswa u-100% we-SAF kanye nengxube kaphethiloli ye-HEFA/Jet A-1 kuqale kabusha kule nyanga, kuyilapho ukuhlolwa kokungcola okusekelwe phansi ukuze kutholwe izinzuzo ze-SAF ngekhwalithi yomoya wendawo nakho kwenziwa. Ithimba labacwaningi lithole ukuthi i-SAF ikhipha izinhlayiya ezimbalwa kunophalafini ovamile kuzo zonke izimo zokusebenza kwenjini ehloliwe, okukhomba amandla okuncishiswa komthelela wesimo sezulu kanye nokwenza ngcono izinga lomoya ezikhumulweni zezindiza.

Ngaphezu kwalokho, i-SAF inomthamo ophansi wokuminyana kodwa amandla aphezulu ngekhilogremu ngayinye kaphethiloli uma kuqhathaniswa nophalafini ovamile, okuletha izinzuzo ezithile zokonga uphethiloli wendiza ngenxa yokushisa okuphansi kukaphethiloli kanye nesisindo esincane sikaphethiloli ukuze sigibele ukufeza umgomo ofanayo. Ukuhlaziya okuningiliziwe kwethimba kuyaqhubeka.

“Izinjini nezinhlelo zikaphethiloli zingahlolwa phansi kodwa okuwukuphela kwendlela yokuqoqa imininingwane egcwele ekhishwayo edingekayo ukuze lolu hlelo luphumelele ukushayela indiza ngaphansi kwezimo zangempela,” kusho uSteven Le Moing, oyiMenenja Yezinhlelo Zamandla Amasha kwa- Airbus. “Ukuhlolwa endizeni kwe- A350 inikeza ithuba elihle lokuveza ukukhishwa kwenjini eqondile nengaqondile, okuhlanganisa nezinhlayiya ezivela ngemva kwendiza endaweni ephakeme.”

USimon Burr, uMqondisi wakwaRolls-Royce wezokuThuthukiswa koMkhiqizo kanye noBuchwepheshe, iCivil Aerospace, uthe: “Lolu cwaningo lwengeza ezivivinyweni esesivele sizenzile ezinjinini zethu, phansi nasemoyeni, ezingatholanga ukuthi azikho izithiyo zobunjiniyela. izinjini zethu zisebenza ku-100% SAF. Uma sizoqeda ngempela ikhabhoni yohambo lwendiza oludonsa isikhathi eside, kusho ukuthi u-100% we-SAF uyisici esibalulekile futhi sizibophezele ekusekeleni izitifiketi zayo zesevisi.”

Indiza i-DLR Falcon chaser ifakwe ama-probe amaningi ukukala ukukhishwa kwezinga lokuhamba ngomkhumbi kuze kufike ebangeni elingamamitha ayi-100 kuphela ukusuka ku-A350 futhi iwafake amathuluzi esayensi ukuze ahlaziywe.

“I-SAF ikhonjiswe ukuthi inekhabhoni ephansi kakhulu esikhathini sokuphila kwayo uma iqhathaniswa nophethiloli wejethi ojwayelekile futhi manje siyabona ukuthi inenzuzo ekwehliseni i-non-CO₂ imiphumela nayo,” kusho u-Markus Fischer, Ilungu Lebhodi Lesigaba Se-DLR le-Aeronautics. “Ukuhlola okufana nalokhu kusaqhubeka nokuthuthukisa ukuqonda kwethu i-100% SAF, ukusetshenziswa kwayo endizeni futhi sibona izimpawu ezinhle zokuthi inamandla okunciphisa isimo sezulu. Sibheke ngabomvu ukufunda idatha yochungechunge lwesibili lwezindiza ze-ECLIF3, eziqale kabusha ngendiza yokuqala yokujaha ngaphezu kweMedithera ekuqaleni kwale nyanga. "

Ngo-2015, i-DLR yenza umkhankaso we-ECLIF1, iphenya amanye amafutha ngendiza yayo yocwaningo i-Falcon kanye ne-A320 ATRA. Lolu phenyo lwaqhubeka ngo-2018 ngomkhankaso we-ECLIF2 owabona i-A320 ATRA indiza nengxube kaphethiloli wejethi ojwayelekile futhi wafinyelela ku-50% HEFA. Lolu cwaningo lubonise ukusebenza kahle kokukhipha uphethiloli okufika ku-50% SAF futhi kwavula indlela yezindiza zokuhlola ezingu-100% ze-SAF ze-ECLIF3.

LOKHO ONGAKUTHATHE KULESI SIHLOKO:

“Engines and fuel systems can be tested on the ground but the only way to gather the full set of emissions data necessary for this program to be successful is to fly an aircraft in real conditions,” said Steven Le Moing, New Energy Program Manager at Airbus.
Okutholwe kulolu cwaningo kuzokweseka imizamo eqhubekayo e-Airbus naseRolls-Royce yokuqinisekisa ukuthi umkhakha wezokundiza ukulungele ukusetshenziswa okukhulu kwe-SAF njengengxenye yohlelo olubanzi lokuqeda ikhabhoni embonini.
“This research adds to tests we've already carried out on our engines, both on the ground and in the air, which have found no engineering obstacle to our engines running on 100% SAF.