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..
--- 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 _______________________________________________ Gasification mailing list [email protected] http://listserv.repp.org/mailman/listinfo/gasification_listserv.repp.org http://gasifiers.bioenergylists.org http://info.bioenergylists.org
