Kev tsim cov roj hlwb thiab cov tank hydrogen yog qhov phem dua rau ib puag ncig dua li roj teeb [ICCT]

Kwv yees li ib hlis dhau los, International Clean Transport Council (ICCT) tau tshaj tawm tsab ntawv tshaj tawm txog kev tso tawm los ntawm kev tsim khoom, siv thiab pov tseg cov tsheb sib xyaw, plug-in hybrids, hluav taws xob tsheb thiab roj cell (hydrogen) tsheb. Tus neeg twg uas tau saib ze ntawm cov kab kos yuav xav tsis thoob: pCov roj teeb tsim tawm ua rau qis qis hauv tsev cog khoom emissions thiab qis ib puag ncig lub nra ntau dua li cov roj hlwb thiab cov tank hydrogen..

Hydrogen tso tsheb hlau luam yog qhov phem rau ib puag ncig dua li roj teeb. Thiab peb tsuas yog tham txog kev teeb tsa, tsis yog ntau lawm.

Daim Ntawv Qhia ICCT LCA (Kev Tshawb Fawb Txog Lub Neej) tuaj yeem rub tawm NO. Nov yog ib qho ntawm cov duab hais, saib nplooj 16 hauv tsab ntawv ceeb toom. Daj - kev tsim cov roj teeb nyob rau hauv lub ntiaj teb niaj hnub no (nrog rau tam sim no lub zog tshuav), liab - zus tau tej cov hydrogen tank nrog roj hlwb, loj zuj zus:

Kuv xav tsis thoob, peb nug ICCT txog qhov sib txawv no vim Nws feem ntau lees paub tias kev rho tawm ntawm cov khoom siv raw thiab kev tsim cov roj teeb lithium-ion yog cov txheej txheem "qhuav", thiab cov roj hlwb lossis cov tank hydrogen raug txiav txim siab huv.vim "lawv tsis yog tag nrho cov lus no." Nws hloov tawm tsis muaj qhov yuam kev: hais txog CO emissions₂, kev tsim cov roj teeb ntau yog ib puag ncig tus phooj ywg thiab tsis tshua muaj kev puas tsuaj rau ib puag ncig ntau dua li kev tsim cov cell thiab reservoir.

Dr. Georg Bicker, tus thawj coj ntawm tsab ntawv ceeb toom, hais rau peb tias nws tau siv GREET qauv tsim los ntawm Argonne National Laboratory, lub chaw soj ntsuam kev tshawb fawb rau US Department of Energy, los npaj cov nqe lus. Cia peb hais ntxiv: qhov no tsis yog qee qhov chaw tshawb fawb, tab sis yog ib qho khoom, cov txiaj ntsig ntawm kev siv hluav taws xob nuclear, lwm qhov chaw siv hluav taws xob thiab hluav taws xob tau lees paub thoob plaws ntiaj teb.

Nyob ntawm qhov loj ntawm lub tsheb thiab qhov chaw muag khoom, piv txwv li los ntawm lub roj teeb qhov chaw, cov pa hluav taws xob hauv tsev xog paj (GHG) emissions li ntawm 1,6 tonnes ntawm CO sib npaug.₂ rau me me hatchbacks hauv Is Nrias teb (23 kWh roj teeb) txog 5,5 tonnes ntawm CO sib npaug₂ rau SUVs thiab SUVs hauv Teb Chaws Asmeskas (92 kWh roj teeb; Table 2.4 hauv qab). Qhov nruab nrab rau txhua ntu nws yog kwv yees li 3-3,5 tons ntawm CO-sib npaug.₂... Ntau lawm cais suav nrog kev rov ua dua tshiab, yog tias nws yog, nws yuav qis dua 14-25 feem pua, nyob ntawm cov txheej txheem rov ua dua tshiab thiab tus nqi ntawm cov khoom siv raw.

Rau kev sib piv: Kev tsim cov roj hlwb thiab cov tank hydrogen emits 3,4-4,2 tons ntawm CO sib npaug₂ raws li GREET qauv lossis 5 tons ntawm CO sib npaug₂ hauv lwm cov qauv (pp. 64 thiab 65 ntawm tsab ntawv ceeb toom). Paradoxically, nws tsis yog rov qab los ntawm platinum siv nyob rau hauv roj hlwb uas nqa lub nra loj tshaj plaws ntawm ib puag ncig, tab sis fabrication ntawm carbon fiber-reinforced composite hydrogen tanks... Nws tsis yog qhov xav tsis thoob tias lub tog raj kheej yuav tsum tiv taus lub siab loj ntawm 70 MPa, yog li nws hnyav ntau kaum kilograms, txawm hais tias nws tuaj yeem tuav tau ob peb kilograms roj xwb.

Hydrogen system hauv Opel Vivaro-e Hydrogen (c) Opel

Qhov no yuav txaus siab rau koj: