That's pretty funny re the name. The name apparently goes way back and has two spellings. The Nova I added. It can be shortened to ASN or Supra Nova.
We are thinking about using the basic layout as a shell into which different combustors can be added for charcoal, wood and pellets to operate as a TLUD, BLUD or Vesto-type combustion (controlled primary air, preheated secondary and a refuellable top-loader. There is a side fuelled version at the YDD Lab as well. The performance (only have really good thermal efficiency data with charcoal and a couple as pellet TLUD) is comparable to the Anglo Supra but it can handle a wider variety of fuels and could have drop-in combustion chambers. That means the burn time can be adjusted from 'full' as a TLUD. Diameter sets power, depth sets burn time. Many people use this stove in town and as it has a cost of ownership of about $1.60 a year, it is a bargain. The ASN doesn't cost more, it just does more. It has about 1/4 the CO late in all burns because of better combustion. Initially it is about the same (it's pretty good). Regards Crispin -----Original Message----- From: Paul Anderson <[email protected]> Date: Wed, 10 Apr 2013 09:20:44 To: Discussion of biomass cooking stoves<[email protected]> Cc: Crispin Pemberton-Pigott<[email protected]> Subject: Re: [Stoves] Alternative to charcoal Dear Crispin and all, We await the more complete document from Crispin about his "Anglo Supra Nova" charcoal stove with claims of TLUD performance. I saw it in Cambodia (but not in operation). I think it has great potential. (But the name is a bit long, and Anglo is not a selling point in many cultures.) Paul Paul S. Anderson, PhD aka "Dr TLUD" Email: [email protected] Skype: paultlud Phone: +1-309-452-7072 Website: www.drtlud.com On 4/9/2013 12:18 AM, Crispin Pemberton-Pigott wrote: > > Dear Alex > > Cecil certainly does because lifespan is core to his arguments about > improving the experience of the owner. If a Keren stove lasts about 3 > months in Yogyakarta, 2 weeks in commercial use, then a stove that > lasts 3 years can justifiably be quite a bit more expensive. > > Whether burning the char lowers the lifetime or not is dependent on > the materials and the temperatures. I think there is an assumption in > the tincanium stove producers that burning char is bad because their > stoves can't handle it. Other people make stoves that only burn > charcoal so if they are adapted to burn wood as well -- no problem. > The technology is not limited to what people happened to use to build one. > > Here is an Anglo Supra Nova (nominally a charcoal stove) burning 6mm > wood pellets TLUD style. > > Here you can see individual preheated secondary air jets entering the > wood gas. > > Here you can see the charred pellets being burned after pyrolysis is > complete. This is accomplished by opening the primary air door which > changes the air/fuel ratio on the primary side. > > This unit is slightly cheaper than the Anglo Supra (a sort of Thai > Bucket which was itself introduced 30 years ago by Robert van der Plas > and 'Tig' Tuntivate, so it is rumoured). It has a working life of > about 3 years burning charcoal. Cost is $5.50 retail, much less at the > producer. > > Regards > > Crispin > > Crispin, > Do you think it is useful to place a value on the reduced life span of > a $5 TLUD when burning char compared to the same TLUD not burning the > char? > Alex > > > > _______________________________________________ > 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/
