Ron and all, I do not use biomass pellet nor briquettes, but coal briquettes with diameter around 3 cm.
For pellet, I also developed another stove, but at moment the longest burning time is only 6 hours. You are right, the stove is only for space heating, since I developed the stove based on the request of chicken farm industry. The pre-heating are performed in two ways, through outer and inner cylinder. We adjust the opening of primary air only to control the fire power. Regards M. Nurhuda On Sat, 9 Nov 2013 13:42:23 -0700, "Ronal W. Larson" <[email protected]> wrote: > Nurhuda cc list and Crispin: > > Added questions: > > 1. Have you used it also with any form of biomass (pellets, chips, etc) > and does it behave differently with biomass vs coal, char? > > 2. With biomass, what weight percentage of char output is possible? > > 3. It appears that this is primarily for space heating. Have you used > it for cooking? > > 4. Perhaps the fuel load fills the entire outer cylinder volume? No > outer annulus preheating? > > 5. Is it possible to control primary air (and power levels and turn down > ratios) using plugs or an outer control “band”? > > Thanks for sharing. > > Ron > > > On Nov 9, 2013, at 10:41 AM, [email protected] wrote: > >> That looks really good! >> >> Nice short flame. >> >> Does it burn coal and charcoal? >> >> Thanks >> Crispin >> >> From: [email protected] >> Sent: Saturday, November 9, 2013 10:30 >> To: Discussion of biomass cooking stoves >> Reply To: Discussion of biomass cooking stoves >> Subject: Re: [Stoves] Ulaanbaatar Air Quality >> >> Dear all, >> >> We have developed coal briquette stove that can provide flame duration up >> to 14 hours, depending on the heating content of coals. The stove is >> TLUD. >> >> Please check the picture attached. >> >> Regards >> M. Nurhuda >> >> >> On Fri, 8 Nov 2013 16:37:16 -0500, "Crispin Pemberton-Pigott" >> <[email protected]> wrote: >> > Dear Teddy >> > >> > >> > >> > Generally speaking the locally made ones are poorly designed, leaky and >> > have >> > a power spectrum and controllability that meets the local demand. >> People >> > also know how to use them. >> > >> > >> > >> > In Ulaanbaatar the artisanal stoves last from 5 to 10 years but highly >> > variable. They are quite good wood stoves, for which the brick lining >> > is >> > removed. >> > >> > >> > >> > If we could reliably get harder, smaller coal (size sorted) some could >> > operate for 12 hours without attention. >> > >> > >> > >> > All the new (subsidized) ones are well made. They have to fix them free >> for >> > the first two years under warranty and so on. Several run way too hot >> > so >> > they won't last 5 years. People generally want huge cooking and heating >> > power. >> > >> > >> > >> > Regards >> > >> > Crispin >> > >> > >> > >> > >> > >> > Interesting discussion, sorry if this is a bit off the point but has >> anyone >> > done or heard of any new life cycle analysis research on the >> manufacturing >> > and distribution aspects of new stoves vis-a-vis the ones made in brand >> new >> > in factories as opposed to the ones made by hand at a village level >> > with >> > recycled materials? >> > >> > >> > >> > What impacts of localized pollution does this have do you think? >> > >> > >> > >> > Teddy >> _______________________________________________ >> 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/
