compressed natural gas (CNG) → gaz naturel comprimé (GNC)
Compressed Natural Gas (CNG) is a fossil fuel substitute for gasoline (petrol), diesel, or propane/LPG. Although its combustion does produce greenhouse gases, it is a more environmentally clean alternative to those fuels, and it is much safer than other fuels in the event of a spill (natural gas is lighter than air, and disperses quickly when released). CNG may also be mixed with biogas, produced from landfills or wastewater, which doesn't increase the concentration of carbon in the atmosphere.
CNG is made by compressing natural gas (which is mainly composed of methane [CH4]), to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 200–248 bar (2900–3600 psi), usually in cylindrical or spherical shapes.
Wikipedia
Le gaz naturel comprimé (GNC) est un substitut des combustibles fossiles moins nuisible pour l'environnement. Il consiste principalement en du méthane comprimé (CH4). Sa combustion produit moins d'émissions de gaz à effet de serre que les combustibles fossiles. Il est stocké et distribué dans des bonbonnes, à une pression allant généralement de 200 à 275 bars (de 197 à 271 atmosphères).
http://www.tc.gc.ca/fra/programmes/environnement-etv-comprime-fra-159.htm
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