The lumps were about 2 to 4 cm across. Yours A.D.Karve On Thu, Oct 6, 2011 at 11:20 AM, Joshua Bogart <[email protected]> wrote: > So in essence you are multiplying your surface area by using the internal > surfaces of the Charcoal which is a structure similar to a sponge. What size > charcoal are you using? > > On Wed, Oct 5, 2011 at 9:01 PM, Anand Karve <[email protected]> wrote: >> >> Dear Wishwanathan, >> we are still working on the idea. It works. We have been able to >> reduce the size of the digester to 1/3. Charcoal has to be enclosed in >> a net bag. It does float in the initial stages, but later it absorbs >> water and becomes heavy and sinks. >> Yours >> A.D.Karve >> >> On Thu, Oct 6, 2011 at 10:30 AM, Viswanathan KS <[email protected]> >> wrote: >> > Dear Dr Karveji >> > Your designed digestor for kitchen waste has been popular. Can this >> > digestor >> > be made smaller and therefore cheaper and more affordable for >> > households, if >> > it is filled with charcoal? >> > Charcoal of which size is used and the quantity to be used? >> > Will charcoal not tend to float in the digestor? >> > >> > >> > On Wed, Oct 5, 2011 at 9:22 AM, Anand Karve <[email protected]> wrote: >> >> >> >> Dear Henry, >> >> There are a lot of very simple ideas that need to be tested. I am >> >> currently working on increasing the efficiency of biogas digesters and >> >> feel that it might be possible to reduce the size and the capital >> >> expense of a biogas system. For instance, when I filled the digester >> >> with charcoal, my system accepted three times the normal daily input >> >> and produced three times as much gas. >> >> How much electrical energy would be required by the electric arc to >> >> produce producer gas? One can perhaps achieve the same temperature >> >> with paraboloid mirrors and sunlight. >> >> Yours >> >> A.D.Karve >> >> >> >> On Mon, Sep 12, 2011 at 5:52 AM, Energy7 <[email protected]> >> >> wrote: >> >> > Hi All >> >> > I Hope this is not a double post ( I posted this from my I phone >> >> > earlier >> >> > this morning and it has yet to show up )... >> >> > >> >> > Dear A.D. Karve >> >> > My exact thought a while ago was to achieve this temperature with an >> >> > internal electric arc furnace. The resulting gas can be put thru a >> >> > catalyst. >> >> > Just lately was reminded by a colleague of the efficiency of electro >> >> > static >> >> > precipitators and am presently researching their compatibility with >> >> > producer >> >> > gas. >> >> > So : air tight electric arc furnace fed with co2 and preheated feed >> >> > stock> >> >> > catalyst>98%cyclone cleaning>precip> final water filter cooling >> >> > >dryer > >> >> > co2 >> >> > removal > o2 injection >ice>recycle hot co2 exhaust to preheat feed >> >> > stock. >> >> > Just an idea.. maybe too complicated? Please send me your ideas. >> >> > HN >> >> > ----- Original Message ----- From: "Anand Karve" <[email protected]> >> >> > To: "Discussion of biomass pyrolysis and gasification" >> >> > <[email protected]> >> >> > Sent: Saturday, September 10, 2011 11:41 PM >> >> > Subject: [Gasification] reducing temp. of gasification >> >> > >> >> > >> >> >> Dear All, >> >> >> one requires about 700C temperature for making producer gas. This is >> >> >> generally achieved by burning the feedstock itself, for which one >> >> >> introduces external air into the reactor. As a result, the producer >> >> >> gas gets diluted by the nitrogen in the air. If the process can be >> >> >> conducted in a closed vessel, which is heated from the outside, one >> >> >> can get combustible gas without all the nitrogen, but heating the >> >> >> feedstock inside a container cannot achieve the temperature that is >> >> >> required for producing producer gas, so that what one gets is >> >> >> primarily tar vapour. Has anyone thought of using a catalyst for >> >> >> getting pyrolysis gas at say 300 C? It would help me greatly, if >> >> >> such >> >> >> a catalyst were available. >> >> >> Yours >> >> >> A.D.Karve >> >> >> >> >> >> _______________________________________________ >> >> >> Gasification 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/gasification_lists.bioenergylists.org >> >> >> >> >> >> for more Gasifiers, News and Information see our web site: >> >> >> http://gasifiers.bioenergylists.org/ >> >> > >> >> > >> >> > _______________________________________________ >> >> > Gasification 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/gasification_lists.bioenergylists.org >> >> > >> >> > for more Gasifiers, News and Information see our web site: >> >> > http://gasifiers.bioenergylists.org/ >> >> > >> >> >> >> >> >> >> >> -- >> >> *** >> >> Dr. A.D. Karve >> >> Trustee & Founder President, Appropriate Rural Technology Institute >> >> (ARTI) >> >> >> >> _______________________________________________ >> >> Gasification 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/gasification_lists.bioenergylists.org >> >> >> >> for more Gasifiers, News and Information see our web site: >> >> http://gasifiers.bioenergylists.org/ >> > >> > >> > _______________________________________________ >> > Gasification 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/gasification_lists.bioenergylists.org >> > >> > for more Gasifiers, News and Information see our web site: >> > http://gasifiers.bioenergylists.org/ >> > >> > >> >> >> >> -- >> *** >> Dr. A.D. Karve >> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI) >> >> _______________________________________________ >> Gasification 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/gasification_lists.bioenergylists.org >> >> for more Gasifiers, News and Information see our web site: >> http://gasifiers.bioenergylists.org/ > > > > -- > "A liberal is someone who feels a great debt to his fellow man, which debt > he proposes to repay with your money." > Skype: Joshua.bogart > Emial: [email protected] > > _______________________________________________ > Gasification 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/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ > >
-- *** Dr. A.D. Karve Trustee & Founder President, Appropriate Rural Technology Institute (ARTI) _______________________________________________ Gasification 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/gasification_lists.bioenergylists.org for more Gasifiers, News and Information see our web site: http://gasifiers.bioenergylists.org/
