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Postby erwin » Fri Jul 15, 2011 5:57 pm

Can Someone help me...??

How much Kilogram / litre of CNG filled in 40 water liter cylinder at 200-230 bar pressure.


Methane - C1 : 84.15 Mole Percent(%)
Ethane - C2 : 6.09 Mole Percent(%)
Propane - C3 : 3.11 Mole Percent(%)
Butane - nC4 : 0.63 Mole Percent(%)
iso-Butane -iC4 : 0.52 Mole Percent(%)
Pentane - nC5 : 0.13 Mole Percent(%)
iso-Pentane - iC5 : 0.25 Mole Percent(%)
Hexanes - C6 : 0.27 Mole Percent(%)
CO2 : 4.78 Mole Percent(%)
N2 : 0.07 Mole Percent(%)
Specific Gravity : 0.6297(Dry), 0.6918(saturated) and
GHV : 1104.35 (dry), 1086.36(saturated)

I don't Know How to convert it.

Please someone Help me...??


Postby Guest » Mon Jan 09, 2012 6:35 am

first you might want to spell out what you mean by CNG (Compressed Natural Gas ?)
And does GHV mean Gross Heating Value? The relationship between volume and corresponding amount of energy for gas.

For natural gas, the Gas Processors Association (GPA) specifies a standard temperature of 60 °F (15.6 °C), but allows a variety of "base" pressures, including 14.65 psi (101.0 kPa), 14.656 psi (101.05 kPa), 14.73 psi (101.6 kPa) and 15.025 psi (103.59 kPa). For a given "base" pressure, the higher the air pressure, the colder it is; the lower the air pressure, the warmer it is.
Average sea-level pressure is 101.325 kPa (1013.25 mbar or hPa, 29.92 inches of mercury [inHg] or 760 millimeters [mmHg])

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