Storage Natural gas vehicle

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storage density of natural gas


cng typically stored in steel or composite containers @ high pressure (3000 4000 psi, or 205 275 bar). these containers not typically temperature controlled, allowed stay @ local ambient temperature. there many standards cng cylinders, popular 1 iso 11439. north america standard ansi ngv-2.


lng storage pressures typically around 50-150 psi, or 3 10 bar. @ atmospheric pressure, lng @ temperature of -260 °f (-162 °c), however, in vehicle tank under pressure temperature higher (see saturated fluid). storage temperatures may vary due varying composition , storage pressure. lng far denser highly compressed state of cng. consequence of low temperatures, vacuum insulated storage tanks typically made of stainless steel used hold lng.


cng can stored @ lower pressure in form known ang (adsorbed natural gas) tank @ 35 bar (500 psi, pressure of gas in natural gas pipelines) in various sponge materials, such activated carbon , metal-organic frameworks (mofs). fuel stored @ similar or greater energy density cng. means vehicles can refuelled natural gas network without gas compression, fuel tanks can slimmed down , made of lighter, less strong materials.








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