On Jul 25, 2010, at 5:01 PM, Stephen Maupin wrote: > The problem is not your primary gasification air; it is your secondary > combustion air in the flare nozzle itself. Increase you flare three times the > size of your producer gas supply pipe Cut away 30% of the flare vessel bottom > using narrow to wide slits at four places on the bottom of the flare. > Combustion air mixing is just as important as pyrolysis zone air..
Ah-HA! I thought this might be one of the issues! (See my comments to GregM.) YES, I will definitely work on this! -brian > > --- On Sat, 7/24/10, Brian and Cara Paasch <[email protected]> wrote: > > From: Brian and Cara Paasch <[email protected]> > Subject: [Gasification] Can't get to blue flare > To: "Discussion of biomass pyrolysis and gasification" > <[email protected]> > Date: Saturday, July 24, 2010, 9:08 PM > > Hi all, > > We recently started testing our downdraft gasifier. So far we haven't been > able to move from a yellow/red flare to a blue flare. I've searched the > gasification archives and as best I understand, we need more air running > through our system. Is that correct? We've increased the air over previous > test runs but our flare is showing no sign of going from yellow to blue. > > As shown in this video: > > http://www.youtube.com/watch?v=9X6WPlhyOWc&feature=channel > > we have a pretty clean flare, no obvious smoke, but day or night, our flare > is most certainly NOT blue. > > Anything else we should be considering? > > Thanks! > > -brian > > PS Our wood moisture content is less than 15%. > _______________________________________________ Gasification mailing list [email protected] http://listserv.repp.org/mailman/listinfo/gasification_listserv.repp.org http://gasifiers.bioenergylists.org http://info.bioenergylists.org
