>Date: Fri, 12 Apr 2002 21:41:01 +1000 >To: "Paul S. Anderson" <psanders@ilstu.edu> >From: Peter Verhaart <pverhaart@optusnet.com.au> >Subject: Re: Gasifier fundamental question > >At 12:51 11/04/02 -0500, you wrote: >>Stovers (especially Tom and Ron) >> >>Crispin at New Dawn Engineering wrote to me: >>>Dear Paul >>... (snip) >>>I wanted to see what people came >>>up with as a reason for burning from the top down. I am singularly >>>unimpressed with the reasoning. I suspect that it is a 'given' not to be >>>questioned. I am still waiting to hear ANY reasonable explanation for not >>>smoking off the wood in any pattern or position. Charcoal is made by >>>running the smoke (from the charing process) through the uncharred wood. >>>Why should it be different with a stove?? > > >Top down burning does not expose the lower layers of fuel to heat so there >is less uncontrolable evolution of volatiles. Cleaner burning. >Bottom up burning does expose all of the fuel above the combustion zone to >heat leading to copious production of volatiles nobody knows how to get >rid of except via a chimney which transports the smoke to the neighbours. > >Piet - Stoves List Archives and Website: http://www.crest.org/discussion/stoves/200202/ http://crest.org/discussiongroups/resources/stoves/ (Under construction) http://www.ikweb.com/enuff/public_html/Stoves.html (Original) Stoves List Moderators: Ron Larson, ronallarson@qwest.net Alex English, english@adan.kingston.net Elsen L. Karstad, elk@wananchi.com www.chardust.com List-Post: <mailto:stoves@crest.org> List-Help: <mailto:stoves-help@crest.org> List-Unsubscribe: <mailto:stoves-unsubscribe@crest.org> List-Subscribe: <mailto:stoves-subscribe@crest.org> Sponsor the Stoves List: http://www.crest.org/discuss3.html - Other Biomass Stoves Events and Information: http://www.bioenergy2002.org http://www.crest.org/articles/static/1/1010424940_7.html Bioenergy http://www.crest.org/articles/static/1/1011975339_7.html Gasification http://www.crest.org/articles/static/1/1011975672_7.html Carbon For information about CHAMBERS STOVES http://www.ikweb.com/enuff/public_html/Chamber.htm
