I just got a bunch of (spherical) cherry pits I'm going to try soon. Let me know if you are interested in the results....
On Tue, May 7, 2013 at 4:57 PM, <[email protected]> wrote: > Frank and list: > > Need to bring in one more variable: fuel shape. Imagine the fuel is > pencil shaped. If placed vertically, they work fine to make char. If > horizontal and parallel, they can block most vertical air flow. Anyone > able to supply biomass fuel spheres? > > Ron > > ------------------------------ > *From: *"Frank Shields" <[email protected]> > *To: *"Discussion of biomass cooking stoves" < > [email protected]> > *Sent: *Tuesday, May 7, 2013 2:46:13 PM > > *Subject: *Re: [Stoves] Charcoal as space filler in TLUD reactors > > Dear Martin, > > I often determine the particle density here in the lab using free flowing > sand. If the particle density of the fuel is determined (g/cc) and you know > the weight of fuel packed in a known volume you know the volume of voids > and > can determine the air speed - I am thinking. > > Frank > > > > > -----Original Message----- > From: Stoves [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Tuesday, May 07, 2013 1:26 PM > To: Discussion of biomass cooking stoves > Subject: Re: [Stoves] Charcoal as space filler in TLUD reactors > > [Default] On Tue, 7 May 2013 09:22:19 +0200,"Boll, Martin Dr." > <[email protected]> wrote: > > >You have to calculate the free space in order to get the real air-speed in > this area. > >I think even if that is naturally not the true surface-speed on the fuel, > it is a good number to deal with. > > I think in gasification they use the term "superficial velocity" a > fictional > speed derived from the air volume and cross section of the chamber, the > actual speed of any given bit of air flow through the spaces will be much > higher of course. > > AJH > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected] > > 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://stoves.bioenergylists.org/ > > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected] > > 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://stoves.bioenergylists.org/ > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected] > > 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://stoves.bioenergylists.org/ > > > -- Josh Kearns PhD Candidate, Environmental Engineering University of Colorado-Boulder Visiting Researcher, North Carolina State University Director of Science Aqueous Solutions www.aqsolutions.org Mobile: 720 989 3959 Skype: joshkearns
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