[Stoves] grass heat stoves

[cornelio torrijos]

Hi Tom,

Would appreciate information on the average energy content of a kilo of
coconut shell charcoal.

Cornel



On 3/1/07, Tom Miles <tmiles at trmiles.com> wrote:
>
> Jim,
>
> You can see the subject of the stoves list on the website and archives at:
> http://www.bioenergylists.org/
>
> The purpose of this "stoves" list is to promote the development and
> introduction of improved biomass-burning stoves primarily in developing
> countries.
>
> As you can see the Cornell site is pitched to grass pellets for developed
> economies.
>
> While densified fuels including grasses have been tried, are sometimes
> used
> in developing economies and can be used in some of the devices discussed
> here the emphasis is on less mechanically processed fuels.
>
> Regards,
>
> Tom Miles
>
>
>
> -----Original Message-----
> From: stoves-bounces at listserv.repp.org
> [mailto:stoves-bounces at listserv.repp.org] On Behalf Of jim mason
> Sent: Tuesday, February 27, 2007 8:17 PM
> To: STOVES at LISTSERV.REPP.ORG
> Subject: [Stoves] grass heat stoves
>
> here's an interesting mention of tubular grass stoves on the cornell
> grassbioenergy site.  the link is here:
> http://grassbioenergy.org/faq/faq.asp.
>
> i have not followed the stove list in much detail (which is terrible
> of me, i know) so i apologize if this or the like has gone across here
> previously.
>
> jim
>
>
>
>
> Q: How old is the "new" concept of grass heating in the US?
> A: Pioneers who settled in the Midwestern prairies had no wood and
> could not afford coal. So they burned "Prairie coal" (buffalo chips)
> until supplies grew scarce. Then they switched to burning grass,
> twisted up into packets (the earliest form of densification). The
> packets were known as "cats". (Fire on the Hearth, by J.H. Peirce,
> 1951, Pond-Eckberg Co., Publ.).
>
>
> Q: What ideas came with the immigrants to allow burning hay on the
> prairies in the 19th century?
> A: Large brick or stone "Russian" furnaces were fed significant
> quantities of loose grass 3-4 times daily, the structure radiated
> sufficient heat for up to 6-8 hours. They were usually
> centrally-located in the house
> Two-cylinder Hay Burner
>
> Q: Did Yankee ingenuity build a better mousetrap?
> A: Numerous US patents were granted for hay burning iron stoves in the
> late 19th century. Metal cylinders over a foot in diameter or
> magazines were stuffed with grass, and tension was provided to feed
> the hay directly into the firebox. One packed cylinder could keep a
> good fire for an hour or two. These stoves were very dangerous to
> operate. Various devices also were invented for twisting grass into
> sticks that could be cut to length like stove wood.
>
> (there are pix of this on the real page)
>
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