Fuel Properties

Hi Stovers,

This was a great opportunity for me to break out of my two year "lurker"
role and contribute. I have quite a bit of first hand experience with goat droppings as both a TLUD fuel input and a biochar soil amendment. In late
2009 I was asked by researchers at PATH to evaluate it as a potential fuel in a possible stove project, which they were planning in northern Senegal.
Although the project did not get funded, I had very good results with this type of dung.

It, of course, has a lower density than man-made pellets. However, if you could get those goats to squeeze a bit harder (a stand in one place), it would be perfect. It burns very cleanly and smells great. I had the resulting Goat poop charcoal tested for ph, adsorption and adsorption, by Dr Hugh McLaughlin. As a soil amendment it's high ash content would give it a significant liming effect, but this was largely neutralized by rinsing.

It worked well in pot tests and I have attached Hugh's data sheets.

We have not had much of a chance to work with this in the field, not a lot of goats in Central America. However this has become a staple fuel in my High School stove building workshops. What 15 year old doesn't like to light poop on fire?

Art Donnelly

"SeaChar.Org...positive tools for carbon negative living"

Dry Fuel Equivalent Calculator
Crispin and Nigel Pemberton-Pigott, October 2007

The C-H-O Fuel Map
Thomas Reed, Biomass Energy Foundation, October 4, 2007

Understanding Wood Wastes as Fuel TECHNICAL PAPER #46
Jon Vogler, VITA, Volunteers in Technical Assistance, Arlington, Virginia 22209 USA 1986

Firewood Crops: Shrub and Tree Species for Energy Production
US National research Council, Washington D.C. for US Agency for International Develoment, 1980 PB81-150716 (NTIS)

Guatemalan Conifers
Thomas T. Veblen, Facultad de Ingenieria Forestal, Universidad Austral de Chile, FAO, Unasylva


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