by sellyanes » Wed Nov 04, 2009 4:42 pm
I think it will help you in converting NM3 to GJ. I am writing the formula To convert from gas at pressure and temperature,
[Volume S] = [Volume L]*[Pressure L / Pressure S]*[Temperature S / Temperature L]. and please check out the density of carbon gas. This is the measure of the gross heat natural gas approximately.
38 MJ/ Nm3 = 0.038 GJ/ Nm3 = 1030BTU/ scf = 1.1 MJ/ scf = 0.0011 GJ/ scf