permaculture

[Niels <mudguard@gmail.com>]

Hi,

aNy info to give on biomass yields from short-rotation coppice?
And preparation of any ag wastes or coppice products for burning?

ATB,
N*
nocompost.blogspot.com

John Fritz wrote:

> Lawrence,
>   
>  Much of what you would like to accomplish is feasible with existing technology.  www.legacyfound.org  and also do a google search for "sedore stoves".
>   
>  John Fritz, NW Arkansas.
>   
>   
>  Message: 2
> Date: Sat, 11 Feb 2006 22:50:13 -0500
> From: "Lawrence F. London, Jr." <lfl@intrex.net>
> Subject: Re: [permaculture] wood burning stoves
> To: permaculture <permaculture@lists.ibiblio.org>
> Message-ID: <43EEB075.2010403@intrex.net>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
>
> A few thoughts:
>
> I have been pondering the cost of firewood for my woodstoves. I don't 
> have trees to cut other than
> thinnings, prunings and fallen branches, quick burning trash wood.
> The permaculturists advocate groves of fast growing hardwoods for 
> coppicing.
> This is probably one of the better options for a homesteader with a 
> serious interest in
> organizing his property for efficient maintenance, recycling of 
> nutrients and water
> and enhancing the permaculture systems he installs. Coppiced hedges and 
> windbreaks serve multiple purposes,
> fuel, screening, wildlife habitat and wind protection. I am thinking in 
> terms of what a homeowner can do
> to provide his own fuel rather than utilizing external inputs, more in 
> the realm of immediate possibilities.
> As for off site sources of fuel, you see land clear cut for commercial 
> and residential development
> every day. Much of the plant material displaced is ground into mulch 
> and left on site for landscaping - a good thing.
> Some landscape debris is hauled to landfills for shredding and resale 
> or windrowed (as is done on farms sometimes).
> Transportation from source to user is a big issue. It is a good idea to 
> clear fire prone areas of biomass that could be 
> pelletized - likely done by a subcontractor (hired by neighborhood 
> associations), the forest service or municipalities. 
> Homeowner groups could seize the opportunity and do it themselves with 
> group or regional group
> purchase of equipment.
>
> A chipper-grinder-compactor (pelletizer) could be designed and 
> fabricated - design specs and plans could be distributed 
> to interested parties. I am thinking of using a standard (electric 
> powered for myself) chipper-grinder with the output
> going into some sort of powered device that utilizes an auger screw to 
> compact and dewater material fed into it.
> Look at a Lifestream wheat grass juicer and you will get the idea - 
> basically a modified sausage stuffer.
> This would output a continuous stream of compressed wood particles - 
> maybe the grindings could be premixed with some 
> inert bonding agent to make the final product more solid after drying. 
> This process wouldn't make a pellet per se but a 
> burnable material greatly reduced in size from its original state. With 
> a gear train, large flywheel and bicycle this 
> machine could run on human power, if sized appropriately.
>
> So, from coppiced grove and trash from landscape maintenance to 
> chipper-grinder-compactor to wood stove you have a 
> process that many homeowners could use to provide themselves with fuel 
> for heat - this also means greenhouse heat for
> added food self sufficiency during the cold season and early starting 
> of transplants for the food garden.
>
> As for the woodstove, perhaps an HS Tarm Danish wood fired boiler for 
> hot water radiator heat - the best way to go
> from what I can tell. A space heating version of a pellet burning stove 
> could be designed maybe even with a catalytic 
> converter incorporated into the design. This could be a passive system 
> not requiring electrcity. Utilizing the principle
> involved in the convection tower charcoal starter for the grill 
> additional combustion air could be channeled into some 
> sort of carburetor through which the fuel could pass (using a solar 
> electric powered auger screw again). This would 
> provide efficient combustion to get max btu's from your fuel.
>
>
>
>
>
>
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