Calculation of Methane number- yet again :-)

[JakesB]

I have seen a few questions posted around calculating the methane number, unfortunately our local Caterpillar rep is unwilling to share his software. I have a lot of methane numbers to calculate am not that willing to share each composition with him. I saw a few comments that the calculated methane number based on an octane number approach gave a 10% error. Any new wisdom after the last post will really be appreciated?

 

[dcasto]

http://uk.dgc.dk/publications/algotitme.htm

http://www.arb.ca.gov/regact/cng-lpg/appe.doc

try these two papers