I also saw the sawdust stove made out of a 5 gallon/~20 liter paint bucket for use in the kilns at Dedza Pottery Malawi in the mid 90's. Same as PAals observed construction: Mold made with • a center vertical plug: A 3"ø stick tapering to 2.5" (75mm tapering to 62mm) over its ~16" (40mm) length. (stick is smooth to to touch and soaked with hot wax which is then rubbed in to make sick easy to extract fomr compacted sawdust... • a radial plug for insertion on horizontal through corresponding pail side wall hole about 2" (50mm) up from the pail bottom. This stick was about same diameter and taper but only about 8" (200mm) in length. (Treat same way as above) pail with some tape to side wall for easy removal
On another matter entirely, the search for the perfect carbonising layer for gassification, is it necessary to always to think on the horizontal...? there are fluidised beds but I'm just wondering if this is not what we are see in the charring of the central -usually but not essentially- vertical core of the briquette--a core which expands outward through combustion of it own wall. Is it too much of a stretch to say that, as the spent layer is spalded off to the ash pit beneath, exposing fresh pre charred material, it is behaving like a fluidised bed of sorts ? Richard Stanley On Jan 18, 2011, at 6:10 AM, Paal wendelbo wrote: > During 2nd ww some soldiers was trapped at a sawmill in France some where, > and after awhile the only they had for fuel was sawdust. They stamped a 10 > litre bucket with sawdust. with a 2" stick vertical in the middle and a 2" > stick in bottom for air intake and ignited in the cannel.I trod it in the > Peko Pe in Uganda in 96 and it works. A 200 litre barrel with sawdust was > burning 8 hours with a 4" air channel and glowing another 5-6 hour > > Paal W > > ----- Original Message ----- From: <[email protected]> > To: <[email protected]> > Cc: "vijayaganapathi" <[email protected]>; "mukundan" > <[email protected]>; <[email protected]> > Sent: Friday, December 31, 2004 8:07 PM > Subject: [Stoves] Burning saw dust in TLUD stove > > >> >>> >>> Message: 4 >>> Date: Sun, 16 Jan 2011 23:30:30 -0500 >>> From: "Crispin Pemberton-Pigott" <[email protected]> >>> To: "'Discussion of biomass cooking stoves'" >>> <[email protected]> >>> Subject: Re: [Stoves] old patent-paper about a saw-dust stoves >>> Message-ID: <[email protected]> >>> Content-Type: text/plain; charset="us-ascii" >>> >>> >>> Has anyone seen sawdust burning stoves that seems to work reasonably well, >>> or are they all plagued by rising thermal power, for example? I am hoping >>> that some form of TLUD will work with really small sawdust particles because >>> there is so much of it around. >>> >> >> This should not be a problem with Champion TLUD stove - since this stove has >> a provision for attaching a blower for the primary air. >> >> A blower will be definitely needed to push the primary air through the saw >> dust. >> >> A fine mesh can be added above the regular SS mesh ( below the fuel bed ) - >> so that fine particles do not fall through. >> >> Regards, >> >> >> Rajan >> >> >> >> _______________________________________________ >> Stoves mailing list >> >> to Send a Message to the list, use the email address >> Stoves mailing list >> >> to UNSUBSCRIBE or Change your List Settings use the web page >> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org >> >> for more Biomass Cooking Stoves, News and Information see our web site: >> http://www.bioenergylists.org/ >> [email protected] >> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org >> >> > > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > Stoves mailing list > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > > for more Biomass Cooking Stoves, News and Information see our web site: > http://www.bioenergylists.org/ > [email protected] > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address Stoves mailing list to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/ [email protected] http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
