[Stoves] something I forgot

[Energies Naturals C.B.]

and what is most important in these Ecoworxx machines:
Just changing the die, which takes less than 1/2 h, you can make pellets of 6 - 8-10-12-16-20-25 mm diammeter!

This opens the field for larger gasifiers which need larger interstitional areas to " breathe freely".

Rolf


On Sat, 20 Jul 2013 08:06:37 +0700
Paul Olivier <paul.olivier at esrla.com> wrote:

> Yesterday I ran across this YouTube video. Here pine forest debris (pine
> needles, pine cones, twigs and branches) is run through  a hammer mill and
> a pellet machine:
> http://www.youtube.com/watch?v=HOp__fEb9KM
> 
> These pellets could be used as fuel in a pellet gasifier:
> https://dl.dropboxusercontent.com/u/22013094/150%20Gasifier/Short/Photos/IMG_1567a.JPG
> https://dl.dropboxusercontent.com/u/22013094/150%20Gasifier/Short/Photos/IMG_1568a.JPG
> 
> The gasifier shown here is only 25 cm in height, and if completely filled
> with pelllets, it produces gas for as long as 1.5 hours. The biochar from
> this pellet gasifier comes out in pelleted form:
> https://dl.dropboxusercontent.com/u/22013094/150%20Gasifier/Short/Photos/IMG_1563.JPG
> 
> Here in Vietnam there are a lot of pine forests. The government has
> instituted a program of controlled burns to prevent catastrophic forest
> fires. In dry season the air quality in the vicinity of Dalat where I live
> is really bad. The smoke, greenhouse gases and soot released from this
> controlled burning constitute a major environmental problem. All of the
> energy released by these controlled burns is totally wasted. At the same
> time, a lot of people go into the forests and chop down trees to make
> charcoal to burn in charcoal stoves. Deforestation is a major problem. Due
> to their link to deforestation, charcoal stoves, in certain areas of
> Vietnam, should be banned.
> 
> If forest debris could be collected, hammer-milled and pelleted, then it
> would not be necessary to do controlled burns. Minority peoples, who live
> within the forests, could earn substantial money collecting forest debris.
> Small pellet-making facilities could be set up along the edges of forests.
> Some pellets could be used by minority people for household cooking, and
> some pellets could be sold. The biochar produced from these pellets is
> quite valuable. Numerous studies have shown that pine needle biochar has
> exceptional properties (search "pine needle biochar". Some biochar could be
> sold, and some could be returned to replenish forest soils.
> 
> In Vietnam, over 80% of agricultural land is devoted to rice. In the
> highland areas where rice is not grown, there is coffee. In highland areas
> where coffee is not grown, there are pine forests. So Vietnam has an
> abundance of rice hulls, rice straw, coffee husks, pine needles, pine cones
> and other forest debris. No shortage of biomass here.
> 
> Thanks.
> Paul Olivier
> 
> -- 
> 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/


-- 
Energies Naturals C.B. <energiesnaturals at gmx.de>