Emission qauv rau semi-trailers feem ntau suav nrog National IV, V, thiab VI cov qauv, nrog rau cov qauv National VII yav tom ntej, uas tau tsim los ua kom tiav. Cov qauv no dhau los ua nruj dua; lawv lub hom phiaj tseem ceeb yog kom tsis tu ncua txo cov pa tawm ntawm cov pa phem- xws li nitrogen oxides (NOx) thiab cov teeb meem me me (PM)- yog li tsav kev txhim kho ntawm kev thauj mus los ntsuab.
National V Standard (Ua tiav hauv 2017)
Hnub Kawg Ua Ntawv Thov: Yuav tsum tau tswj hwm thoob tebchaws txij lub Ib Hlis 1, 2017.
Kev Txhim Kho Cov Ntsiab Lus: Ua raws li National IV tus qauv los ntawm kev koom nrog SCR (Selective Catalytic Reduction), siv cov tshuaj urea los txo NOx emissions.
Kev txo qis Emission: Piv rau National IV tus qauv, NOx thiab PM emissions raug txo los ntawm kwv yees li 30% -50%.
Cov xwm txheej tam sim no: Thaum qee lub tsheb ua tau raws li tus qauv no tseem nyob hauv kev ncig, lawv tau maj mam hloov los ntawm National VI- cov tsheb ua raws.
National VI Standards (Phaseed Implementation)
Cov Ntsiab Cai ntawm Kev Ua Haujlwm:
National VI-a: Lub Xya hli ntuj 1, 2019 (Gas-cov tsheb thauj mus los)
National VI-b: Lub Xya Hli 1, 2021 (Kev siv tag nrho rau cov tsheb hnyav- lub luag haujlwm diesel)
Cov Ntsiab Lus Txhim Kho:
Kev txwv nruj dua rau CO, NOx, PM, thiab lwm yam pa phem; tshwj xeeb, NOx txwv tau raug txo los ntawm 77% piv rau National V cov qauv.
Yuav tsum tau tiag tiag- lub sij hawm saib xyuas ntawm emission status ntawm OBD (Ntawm -Board Diagnostics) systems.
Kev taw qhia ntawm RDE (Kev Tsav Tsheb Tiag Tiag) kev sim txhawm rau tshem tawm cov xwm txheej uas cov tsheb "ua tau raws li cov qauv hauv chav kuaj tab sis tshaj qhov txwv ntawm txoj kev."
National VII Standards (Tshwj xeeb rau cov qauv tsheb tsim tshiab pib txij Lub Xya Hli 1, 2024)
Hnub Ua Haujlwm: Pib Lub Xya Hli 1, 2024, cov tsheb laij teb tshiab uas tsim tawm tshiab yuav tsum ua raws li National VII cov qauv.
Kev txwv nruj dua emission txwv:
Nitrogen Oxides (NOx) emission txwv tau raug txo los ntawm 40%, poob rau 1.8 g / kWh.
Kev txwv tsis pub Particle (PM) emissions tau raug txo los ntawm 70%, poob rau 0.025 g / kWh.
Kev Sib Tw Txuj Ci: Yuav tsum tau txais kev pom zoo ntawm SCR thiab DPF cov tshuab ua haujlwm zoo dua- nrog rau cov thev naus laus zis uas muaj peev xwm ammonia slip control technologies- ua kom nruj heev rau kev sib koom ua ke ntawm lub cav thiab tom qab - kev kho mob.
