Good day Paul, Thank you for your prompt reply.
How have you arrived at 440 kg weight from 700 m3 of methane? Will you please elaborate? Regards, Krishna On Thu, Mar 31, 2011 at 3:52 PM, Paul Harris <[email protected]>wrote: > G’day Krishna, > > > > I think the different figures are for different pressures and/or > temperatures, as conventions vary. I have a value of 0.628 kg/m3 at 1.103 > kPa and 20C, so 1000 m3 of biogas will become 737 cubic metres of 95% > methane. Ignoring the CO2 will give 700 m3 of methane, weighing about 440 > kg. This will be the mass whatever the pressure (unless you have a leak!). > At 180 bar the volume will be approximately 4 cubic metres (at 20C). > > > > Hope this helps, > > HOOROO > > > > Mr. Paul Harris, Room 202 Charles Hawker Building, Faculty of Sciences, > The University of Adelaide, Waite Campus, PMB 1, Glen Osmond SA 5064 Ph > : +61 8 8303 7880 Fax : +61 8 8303 4386 > mailto:[email protected] <[email protected]> > http://www.adelaide.edu.au/directory/paul.harris > > > > CRICOS Provider Number 00123M > > This email message is intended only for the addressee(s) and contains > information that may be confidential and/or copyright. If you are not the > intended recipient please notify the sender by reply email and immediately > delete this email. Use, disclosure or reproduction of this email by anyone > other than the intended recipient(s) is strictly prohibited. No > representation is made that this email or any attachments are free of > viruses. Virus scanning is recommended and is the responsibility of the > recipient. > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Murali Krishna > *Sent:* Thursday, 31 March 2011 4:47 PM > *To:* [email protected] > *Subject:* [Digestion] density of methane and bottling > > > > Hi, > > I shall thank you to clarify the follwoing: > > The density of methane is shown as 0.67, 0.72 and 1.2 on the web. > Presuming that 1000 cubic meter of methane at 70% in biogas, purified upto > 95% and then compressed what will be the output of gas in kgs. It is likely > to be compressed at three stages upto 180 bar pressure. > > Krishna > > _______________________________________________ > Digestion mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org > > for more information about digestion, see > Beginner's Guide to Biogas > http://www.adelaide.edu.au/biogas/ > and the Biogas Wiki http://biogas.wikispaces.com/ > > >
_______________________________________________ Digestion mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org for more information about digestion, see Beginner's Guide to Biogas http://www.adelaide.edu.au/biogas/ and the Biogas Wiki http://biogas.wikispaces.com/
