what is the flow rate and pressure you will be having for the gas. Pls give minimum and maximum values.
On 1/27/11, digestion-requ...@lists.bioenergylists.org <digestion-requ...@lists.bioenergylists.org> wrote: > Send Digestion mailing list submissions to > digestion@lists.bioenergylists.org > > To subscribe or unsubscribe via the World Wide Web, visit > > http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org > > or, via email, send a message with subject or body 'help' to > digestion-requ...@lists.bioenergylists.org > > You can reach the person managing the list at > digestion-ow...@lists.bioenergylists.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Digestion digest..." > > > Today's Topics: > > 1. Biogas meter (fwita...@umd.edu) > 2. Re: Biogas meter (Alastair James Ward) > 3. Re: Biogas meter (Alexander Eaton) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 25 Jan 2011 15:57:05 -0500 (EST) > From: <fwita...@umd.edu> > To: digestion@lists.bioenergylists.org > Subject: [Digestion] Biogas meter > Message-ID: <20110125155705.bcg47...@po7.mail.umd.edu> > Content-Type: text/plain; charset=us-ascii > > Hi there, > > My name is Freddy Witarsa and I am a student at University of Maryland in > the > US. We are currently building biodigesters and I am designing the gas > collection > system. I have a question regarding the biogas meters that could be used for > measuring the amount of biogas produced. Currently, we have a chinese model > meter JBD2.5-SA. We are hesitant to use it because it is not temperature and > pressure compensated. Does anyone have any good suggestions for low-flow > gas meter that is pressure and temperature compensated? > > Also, diaphragm meters seems to be ideal for low-flow gas measurement, but I > believe it is not ideal for biogas because of the biogas moisture content, > which > could lead to corrosion of the meter. Does anyone know of diaphragm meters > that are built specially for biogas (i.e. with stainless steel etc.)? > > Thank you very much for your help. > > Freddy Witarsa > > > > ------------------------------ > > Message: 2 > Date: Wed, 26 Jan 2011 09:07:48 +0100 > From: Alastair James Ward <alastair.w...@agrsci.dk> > To: For Discussion of Anaerobic Digestion > <digestion@lists.bioenergylists.org> > Subject: Re: [Digestion] Biogas meter > Message-ID: > <6195e102f8a53148adf2761bf536f98f0285d47e0...@djfexmbx01.djf.agrsci.dk> > > Content-Type: text/plain; charset="us-ascii" > > Hi Freddy, > > I suppose you could measure temperature and pressure and correct your > recorded figures? > > I have not used diaphragm meters, I have heard they do not last long but > then I have seen some being used for months if not years with a silica gel > column fitted upstream of the meter. They are pretty cheap too and sometimes > available with digital outputs for online measurement. > > > > Med venlig hilsen / Regards > Alastair James Ward > > > > -----Original Message----- > From: digestion-boun...@lists.bioenergylists.org > [mailto:digestion-boun...@lists.bioenergylists.org] On Behalf Of > fwita...@umd.edu > Sent: 25. januar 2011 21:57 > To: digestion@lists.bioenergylists.org > Subject: [Digestion] Biogas meter > > Hi there, > > My name is Freddy Witarsa and I am a student at University of Maryland in > the US. We are currently building biodigesters and I am designing the gas > collection system. I have a question regarding the biogas meters that could > be used for measuring the amount of biogas produced. Currently, we have a > chinese model meter JBD2.5-SA. We are hesitant to use it because it is not > temperature and pressure compensated. Does anyone have any good suggestions > for low-flow gas meter that is pressure and temperature compensated? > > Also, diaphragm meters seems to be ideal for low-flow gas measurement, but I > believe it is not ideal for biogas because of the biogas moisture content, > which could lead to corrosion of the meter. Does anyone know of diaphragm > meters that are built specially for biogas (i.e. with stainless steel etc.)? > > Thank you very much for your help. > > Freddy Witarsa > > _______________________________________________ > Digestion mailing list > > to Send a Message to the list, use the email address > digest...@bioenergylists.org > > 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/ > > > > > ------------------------------ > > Message: 3 > Date: Wed, 26 Jan 2011 10:26:45 -0700 > From: Alexander Eaton <a...@sistemabiobolsa.com> > To: For Discussion of Anaerobic Digestion > <digestion@lists.bioenergylists.org> > Subject: Re: [Digestion] Biogas meter > Message-ID: > <aanlktinwcuv9voq8k_gu_zewu-c_exbv0-j0rfq3n...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Freddy, > > We have used a diaphragm meter made here (Elster, BK-G 1.6), and they seem > to available in other places as they were recently shown to work on a biogas > project (small scale) in Peru. This systems has a combination of latex and > plastic components that are in contact with the gas to avoid corrosion. We > were able to get good results below the rated pressure, but at one point I > was able to keep a flame lit, without the gas registering on the meter. > That was at about 5-10 mm of water column, very very low. This systems > costs about $40 US. > > Saludos, > A > > On Wed, Jan 26, 2011 at 1:07 AM, Alastair James Ward < > alastair.w...@agrsci.dk> wrote: > >> Hi Freddy, >> >> I suppose you could measure temperature and pressure and correct your >> recorded figures? >> >> I have not used diaphragm meters, I have heard they do not last long but >> then I have seen some being used for months if not years with a silica gel >> column fitted upstream of the meter. They are pretty cheap too and >> sometimes >> available with digital outputs for online measurement. >> >> >> >> Med venlig hilsen / Regards >> Alastair James Ward >> >> >> >> -----Original Message----- >> From: digestion-boun...@lists.bioenergylists.org [mailto: >> digestion-boun...@lists.bioenergylists.org] On Behalf Of fwita...@umd.edu >> Sent: 25. januar 2011 21:57 >> To: digestion@lists.bioenergylists.org >> Subject: [Digestion] Biogas meter >> >> Hi there, >> >> My name is Freddy Witarsa and I am a student at University of Maryland in >> the US. We are currently building biodigesters and I am designing the gas >> collection system. I have a question regarding the biogas meters that >> could >> be used for measuring the amount of biogas produced. Currently, we have a >> chinese model meter JBD2.5-SA. We are hesitant to use it because it is not >> temperature and pressure compensated. Does anyone have any good >> suggestions >> for low-flow gas meter that is pressure and temperature compensated? >> >> Also, diaphragm meters seems to be ideal for low-flow gas measurement, but >> I believe it is not ideal for biogas because of the biogas moisture >> content, >> which could lead to corrosion of the meter. Does anyone know of diaphragm >> meters that are built specially for biogas (i.e. with stainless steel >> etc.)? >> >> Thank you very much for your help. >> >> Freddy Witarsa >> >> _______________________________________________ >> Digestion mailing list >> >> to Send a Message to the list, use the email address >> digest...@bioenergylists.org >> >> 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 >> digest...@bioenergylists.org >> >> 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/ >> >> > > > -- > Alexander Eaton > Sistema Biobolsa > IRRI-Mexico > RedBioLAC > > Mex cel: (55) 11522786 > US cel: 970 275 4505 > > a...@irrimexico.org > a...@sistemabiobolsa.com > > sistemabiobolsa.com > www.irrimexico.org > www.redbiolac.org > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylists.org/attachments/20110126/68c52aa5/attachment-0001.html> > > ------------------------------ > > _______________________________________________ > Digestion mailing list > > to Send a Message to the list, use the email address > digest...@bioenergylists.org > > 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/ > > > > End of Digestion Digest, Vol 5, Issue 19 > **************************************** > -- Kind Regards, *Sumedh Bapat* *+919881090693 / +919879110924* _______________________________________________ Digestion mailing list to Send a Message to the list, use the email address digest...@bioenergylists.org 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/
