Nyob rau hauv lub tsheb rov qab tam sim no ntawm lub ntsej muag ntse nce hauv kev lag luam hluav taws xob tshiab, kev loj hlob ntawm cov khoom lag luam hluav taws xob (siab txog kev tshawb fawb thiab kev txhim kho ntawm kev mob siab rau cov engines (li). Tam sim no, lub siab tshaj plaws nres thermal efficiency (bte) uas cov uas twb muaj sim siab rau ntawm kev ua lag luam tuaj yeem ua tiav yog kwv yees li ntawm 41%. Txhawm rau cuam tshuam ntau ntxiv txo cov roj noj ntawm tag nrho cov tsheb, txuas ntxiv txhim kho lub qhov thermal efficiency ntawm lub cav yog suav hais tias yog ib qho zoo tshaj plaws thiab tseem ceeb tshaj plaws lub tswv yim.
Lub ntsiab lus tseem ceeb xa los ntawm Marc Sensed los ntawm Tus Lwm Thawj Coj, ntawm 2024 Turin lub rooj sib tham txog carbon dioxide opication txo cov xwm txheej thauj khoom Cov thev naus laus zis kom meej meej qhia meej txog kev sib tw sib tw dhau los ntawm kev maj mam ua rau maj mam ua haujlwm ntawm qhov tam sim no 39% rau 50% +. Lub hom phiaj no tsis yog ib qho yooj yim hais txog kev nce qib, thiab kev sib koom ua ke ntawm cov kev taw qhia, kos duab thiab tsom rau kev txhim kho tshiab yav tom ntej.
Cov kev sib tw ua haujlwm: Peb qhov chaw ua txhaum
Combusiontion tswj kev hloov pauv: kev hloov pauv ntawm "passive" rau "nquag" pcsp
- Passive PCSP: Kev tso siab rau lub tog raj kheej siab los coj cov roj kev txhaj tshuaj, nrog cov tshuaj tiv thaiv kev txwv tsawg (~ λ tsawg dua lossis sib npaug nrog 1.6).
- Siv PCSP: Sib koom ua ke roj txhaj tshuaj thiab ntau qhov kev tiv thaiv ultra, ua tiav ultra-nyias combusion nrog 2. {2-3%.
- Cov thev naus laus zis tseem ceeb: Tsim thiab kev ua haujlwm ntawm kev sib txuas ua ntej txhaj tshuaj qhov thiab ruaj khov, tswj ntawm high-zog loj.
Lub zog tiv thaiv Reconfiguration: Engineering tawg rau cov khib nyiab kom rov qab (WHR)
Rankine voj voog ua haujlwm: rov qab tso pa tawm ({300-600 degree), drives generator kom tsim tawm 5kw ntxiv.
- Theem hloov cov tshuab txias txias: Siv cov microcapsule theem hloov pauv (PCM) kom nqus cov pa hluav taws kub, thiab txo qis zog lub zog poob.
- Kev sib tw sib tw: WHR operies ntau dua 8l ntawm qhov chaw, yuav tsum tau sib tw rau cov teeb roj teeb \/ lub cev muaj zog.
Co-qauv ntawm cov roj thiab cov tshuab: txoj kev nce qib ntawm e-roj
- RON {{{{{{}}} Synthetic Roj: Txo Super Daws Kev, Ua Ntxiv Ntxiv.
- Molecular Customization Peev Xwm: Cov Khoom Siv Roj Cov Khoom Siv Roj rau cov khoom ntub ntawm GDI txhaj tshuaj, txo pn emissions.
Kev sib ntaus sib tua tsis tiav: Qhib cov lus nug rau 50% +
Cov khoom txwv kev sib tw
- Kev kub siab hauv zos flux ntom hauv zos> 5mw \/ m², qhov ua tau zoo ntawm kev tso cai ceramic) (CMC) Piston Tops yuav tsum tau ntsuas.
- Corrosion inhibition under high EGR rate (>30%), kev tawm tsam cov txheej txheem tshiab yuav tsum tau tsim kho.
Kev nkag siab complex loj hlob tshaj tawm
- Multi-Clariable Las Nrho Cov Nyiaj Txiag: Egrt, Cov Khoom Siv Hluav Taws Xob, Ignition, Whral yuav tsum tau sib koom tes thiab ua kom zoo hauv 100ms.
- Computational power requirement for digital twin models: >{{0 {0}} cov tub ntxhais tiag-lub sij hawm xam cov pawg ua cov qauv rau kev ntsuas.
Tus nqi thiab kev cia siab ua lag luam-tawm
- New cost for 50% efficiency systems (energy recovery systems, post-treatment systems, etc.): >$ 1200, yuav tsum tau sib koom los ntawm lwm lub tshuab.
- WHR evaporator experiences >1000 thermal poob rau hauv WLTC lub voj voog, tsis muaj kev qaug zog lub neej ua ntej kev twv ua qauv.
Unreplaceable xwm ntawm high-efficievication sab hauv commines
- "Lub luag haujlwm hauv lub siab" hauv lub luag haujlwm hauv cov tshuab: 50% BTE tshuab tuaj yeem txo cov roj hluav taws xob pev los ntawm kev siv hluav taws xob tam sim no (BEV, raws li Tuam Tshoj cov qauv hluav taws xob hnyav).
- Kev hloov pauv tseem ceeb rau cov roj carbon Neutrality: ua ke nrog E-roj, tuaj yeem txo cov pa roj carbon monissions los ntawm 2035 (IEA twv ua ntej).
- Tus nqi ntawm cov thev naus laus zis thim rov qab: cov khoom siv sib txuas hluav taws xob ntau, ntse cov khoom siv hluav taws xob thermal yuav ua kom muaj kev lag luam hauv cov tshuab hluav taws xob hauv hydroger.