[Stoves] [Gasification] Chip Guillotine

[Paul Anderson]

Dear Paal,

VERY interesting.   The two men were cutting the twigs to be what 
length?   And want was the length (or other dimensions) from the wood 
chipper machine.

Depending on your answer, and if the twigs could be cut at double the 
length and still be useful, that would give a great reduction in human 
effort (not 50% because the twig still needs to be handled, but only 
half the number of cuts).    And the chipper almost certainly could not 
have been adjusted to make the longer twig-segments.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype: paultlud      Phone: +1-309-452-7072
Website:  www.drtlud.com

On 1/7/2014 10:25 AM, Paal Wendelbo wrote:
>
> Dear Paul A
>
> Up to 40 mm green sprouts from energy forest activity in Africa, can 
> easy be cut with a machete at an angle about 45 ?. They will split up 
> and dry fast in the sun, ready to be used for cooking in a TLUD within 
> two days. 1000 trees can be planted at one ha, and will give about 10 
> kg yield each every year. The leaves should be left at the field. 360 
> trees around 1 ha land will give about 3600 kg, plenty of fuel for a 
> household and even some for sale. Into a good TLUD this type of fuel 
> will give about 20% biochar, which can go back to the energy forest or 
> soil.
>
> We had an experiment at Nyabyeia Forest College in Uganda 15 years ago 
> with a 75 hp. tractor with a wood chipper and two men with machete 
> cutting pine twigs. The two men could compete in price per bag, but 
> not in quantity and they got tired. A household need about 4-5 kg per 
> day for cooking, and that will easy be cut by somebody in the compound.
>
> Best regards Paal W
>
>
>
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