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
_______________________________________________ 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/
