Thnaks All for your feedback Juna, you metioned CNG home filling system - can you elborate - companys - make model -etc Bill
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, 22 June 2011 7:00 a.m. To: [email protected] Subject: Digestion Digest, Vol 10, Issue 16 Send Digestion mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergyli sts.org or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of Digestion digest..." Today's Topics: 1. Re: biogas compression (bingham) 2. Small Scale Farm Digesters (M Bywater) 3. Re: Small Scale Farm Digesters (David Fulford) ---------------------------------------------------------------------- Message: 1 Date: Mon, 20 Jun 2011 16:07:47 -0700 From: "bingham" <[email protected]> To: "For Discussion of Anaerobic Digestion" <[email protected]> Subject: Re: [Digestion] biogas compression Message-ID: <26F74F1534D5485EA0EBEDC44900C49F@Portable> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original We have tried several different types of non CNG compressors. Many contain brass and copper components which fail relatively fast unless you remove the H2S. The seals begin to leak or already did leak which finally set off our gas detectors. We used several different types of tanks and most started to rust or corrode, inside in a very short time. We found a government surplus CO2 compressor that had a U frame explosion proof motor and wiring. It came with Several CO2 tanks we mounted in some farm vehicles with some success. Unless you are using free energy to compress the methane it is was not cost effective for us. We will use it if there is a fuel supply disruption but we fill there are a lot of potential problems with the life expectancy of the CNG tanks. There are composite tanks that are nonmetallic but they are costly. Brent ----- Original Message ----- From: <[email protected]> To: "For Discussion of Anaerobic Digestion" <[email protected]> Sent: Monday, June 20, 2011 4:12 AM Subject: Re: [Digestion] biogas compression Dear Bill, With dive compressors problem may be that there is no circulation of by-pass gas from pistons and crankshaft chamber to gas inlet. This may cause methane slip to atmosphere and possibly risk of explosion. I would recommend to have look on compressors for CNG home filling, some of them are in same price range as dive compressors, and they are designed for flammable gases. Best Wishes, Juha ________________________________________ L?hett?j?: [email protected] [[email protected]] käyttäjän Bill Rucks [[email protected]] puolesta L?hetetty: 20. kes?kuuta 2011 0:25 Vastaanottaja: [email protected] Aihe: Re: [Digestion] biogas compression Greetings all I would like some feed back/ideas/experience on the use of "Dive compressors" and filling air bottles with compressed biogas- to have other equipment running on the gas externally. Help Bill Rucks -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Sunday, 19 June 2011 7:00 a.m. To: [email protected] Subject: Digestion Digest, Vol 10, Issue 14 Send Digestion mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergyli sts.org or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of Digestion digest..." Today's Topics: 1. US Visitor to UK (Steven Bolgiano) ---------------------------------------------------------------------- Message: 1 Date: Fri, 17 Jun 2011 15:50:51 -0400 From: Steven Bolgiano <[email protected]> To: [email protected] Subject: [Digestion] US Visitor to UK Message-ID: <[email protected]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi Group, I just found out that one of our group is going to be in London available all day Sunday, and available some parts of the day Monday, and Tuesday. He is even newer to AD than myself, ... and he is leaving the technical and scientific learning curve up to me. But here at home he has been involved in community / regional development with various utilities, waste water treatment projects, etc. And he would like to speak to persons about the commercial opportunity side of AD (agriculture / poultry / fertilizer byproducts), or at least models that sustain themselves through utilizing those resources produced. Any info on this will be welcome. The specific focus of our project is small to mid sized poultry farmers, using batch digester bladder tanks. However any info or conversations would be wonderful. He's a great guy, and will be an interesting person to meet. If anyone would be available to meet with him that would be fantastic. Contact me [email protected] if there is a possible opportunity. Cheers! Steven -- Steven Bolgiano Executive Director Planet Foundation Ltd. 443.235.1344 ------------------------------ _______________________________________________ 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.bioenergyli sts.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/ End of Digestion Digest, Vol 10, Issue 14 ***************************************** _______________________________________________ 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.bioenergyli sts.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.bioenergyli sts.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/ ------------------------------ Message: 2 Date: Tue, 21 Jun 2011 02:50:32 +0100 From: M Bywater <[email protected]> To: <[email protected]> Subject: [Digestion] Small Scale Farm Digesters Message-ID: <[email protected]> Content-Type: text/plain; charset="iso-8859-1" Hi, It has taken some time for me to post this, but here is the Royal Agricultural Society of England's (RASE) report on small scale UK on-farm digesters that we talked about earlier this year. There is a long version which contains all the case studies ( http://www.rase.org.uk/what-we-do/core-purpose-agricultural-work/AD-Full-Rep ort.pdf ) and a shorter version which talks about barriers and benefits ( http://www.rase.org.uk/what-we-do/core-purpose-agricultural-work/AD-Short-Re port.pdf ) Several of the AD systems proved particularly interesting. One was a self-built system which topped up the digester heat using thermal solar. The farm was a virtual showpiece for renewable energy, having solar PV, ground source heat pump, a wind turbine, thermal solar and a digester! (Case study 10.4) A second, which had been running for more than two years, had automated de-gritting, so that cows could be bedded on sand or ash. It used a very low parasitic load on the mixing (typically about 1W/m3) and had an elevated belt press separator. (Case study 10.5) A third had a three-tank system which produced wonderful digestate and did gas scrubbing in a covered post-store. (Case study 10.9) I hope those of you who were interested in the report enjoy reading it as much as I enjoyed talking to the farmers and putting it together! Kind regards, Angie Bywater -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylists.or g/attachments/20110621/afa6c3c9/attachment-0001.html> ------------------------------ Message: 3 Date: Tue, 21 Jun 2011 08:37:26 +0100 From: "David Fulford" <[email protected]> To: [email protected], "M Bywater" <[email protected]> Subject: Re: [Digestion] Small Scale Farm Digesters Message-ID: <[email protected]> Content-Type: text/plain; charset="us-ascii" An HTML attachment was scrubbed... URL: <http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylists.or g/attachments/20110621/b5778546/attachment-0001.html> ------------------------------ _______________________________________________ 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.bioenergyli sts.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/ End of Digestion Digest, Vol 10, Issue 16 ***************************************** _______________________________________________ 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/
