Robert, This sounds very resourceful! For the hand-cranked blower units, what sort of speed-up transmission do you envision to spin the blowers fast enough to get the required suction head? Using a compressed air eductor is horribly inefficient, as jim realizes. Will you connect to an IC genset after everything is balanced-out? Mark
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Robert Kana Sent: Sunday, October 03, 2010 6:44 AM To: [email protected] Subject: Re: [Gasification] tests to design a new cheap gasifier fan Dear Jim, Your gasifiers are negative pressure, when I built mine, never used the air compressor, just add a small blower ( 2" Chinese made) to air intake and started as pressurized until I got clean gas. I also used the bigger suction blower (3" also Chinese made cost me $ 50.00 in Indonesia) after my scrubber and filter to start gasifier in suction mode. I tried using the same type blower before right after the cyclone and already burned one. With the big blower I achieved 4-8" water pressure. My reactor is 26 cm diam. and the blowers seem to work fine. Even here in Indonesia it is not worth for me try to built the blower, but we did for the hot gas for another project. We took a regular blower, separated the shaft and use different motor and cast ceramics around shafts, than we wrapped with insulating glass fiber and steel clamps. We could handle gas up to 300 degrees with that unit. For the rural areas we are planning to use hand cracked blowers. Regards, Robert Kana, Director Utama Pt. Biomass Energy Indonesia _______________________________________________ Gasification mailing list [email protected] http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.org _______________________________________________ Gasification mailing list [email protected] http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
