Kevin, I think that I am aware of this.
Paul On Wed, Aug 14, 2013 at 6:36 AM, Kevin <[email protected]> wrote: > ** > Dear Paul > > I guess that what I was trying to suggest in a simple way is that you are > not dealing with a simple problem. What you are dealing with is > "3 dimensional unsteady state heat transfer through beds of irregularly > sized broken solids, with irregular shape factors, changing size, and > changing state." > > Best wishes, > > Kevin > > ----- Original Message ----- > *From:* Paul Olivier <[email protected]> > *To:* Discussion of biomass cooking stoves<[email protected]> > *Sent:* Tuesday, August 13, 2013 7:40 PM > *Subject:* Re: [Stoves] corn cobs and char? > > Kevin, > > Note that I used the phrase "sufficiently uniform". I have experimented > with several forms of loose biomass in no way as uniform as rice hulls, > such as coffee husks. Some work quite nicely. > > But I would not venture a guess about the wooden spheres you describe. > I like to see a certain resistance to air or gas flow. > We can't say much until we run tests. > > Thanks. > Paul > > > On Wed, Aug 14, 2013 at 5:04 AM, Kevin <[email protected]> wrote: > >> ** >> Dear Paul >> >> ----- Original Message ----- >> *From:* Paul Olivier <[email protected]> >> *To:* Discussion of biomass cooking stoves<[email protected]> >> *Sent:* Tuesday, August 13, 2013 6:38 PM >> *Subject:* Re: [Stoves] corn cobs and char? >> >> Ron, >> >> In a TLUD it's all about the uniformity of air flow. >> If corn cobs were cut to the same length, they just might be sufficiently >> uniform. >> >> # I think it is a bit more complex that "unifiorm length." With a given >> species of fuel, I think it is more a relation of relative size (that would >> determine pressure drop and uniformity of flow across the fuel bed), and >> surface area and diameter of the fuel particle. (That will have a large >> impact on fuel burning characteristics.) >> >> For example, consider a TLUD running on wood spheres of say 1/4" >> daimeter, and 1" diameter. Such stoves would have quite different operating >> characteristics. >> >> Best wishes, >> >> Kevin >> >> >> >> >> Thanks. >> >> Paul Olivier >> >> >> On Wed, Aug 14, 2013 at 1:54 AM, Ronal W. Larson < >> [email protected]> wrote: >> >>> List: >>> >>> Anyone have any data on using corn cobs in char-making stoves? The >>> supply would seem to be large and likely low cost.. >>> >>> Ron >>> _______________________________________________ >>> 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/ >>> >>> >> >> >> -- >> Paul A. Olivier PhD >> 26/5 Phu Dong Thien Vuong >> Dalat >> Vietnam >> >> Louisiana telephone: 1-337-447-4124 (rings Vietnam) >> Mobile: 090-694-1573 (in Vietnam) >> Skype address: Xpolivier >> http://www.esrla.com/ >> >> ------------------------------ >> >> _______________________________________________ >> 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/ >> >> >> > > > -- > Paul A. Olivier PhD > 26/5 Phu Dong Thien Vuong > Dalat > Vietnam > > Louisiana telephone: 1-337-447-4124 (rings Vietnam) > Mobile: 090-694-1573 (in Vietnam) > Skype address: Xpolivier > http://www.esrla.com/ > > ------------------------------ > > _______________________________________________ > 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/ > > > -- Paul A. Olivier PhD 26/5 Phu Dong Thien Vuong Dalat Vietnam Louisiana telephone: 1-337-447-4124 (rings Vietnam) Mobile: 090-694-1573 (in Vietnam) Skype address: Xpolivier http://www.esrla.com/
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