[Stoves] Jatropha and its future

[Fireside Hearth]

Dear Crispin....

        I am curious if this "log" was an extruded or pressed product. Also interested to know if this was a dark brownish color or more of a golden color. Do you know if there was any paraffin used as a binder?. There is a Canadian company selling a 9 cm by 20 cm log weighing approx 2.26 kg. The moisture content is known to be about 8%. It is approx 8500 btu/lb, and gives a burn time of up to 12 hours (in our stove) with enough coal bed to restart. The other "log" we use is smaller and pressed in a brick shape. This will yield a 7-8 hour burn with coal bed. Funny thing is I get more smoke at a higher heat output than the medium to lower end. This is actually good with me as we are shooting at the smaller home/space application where a lower heat output is better. Estimated output at 27,000 high, 5,000 btu low output. Of course we can also utilize saltwater drift wood and other more corrosive fuels as the stainless construction will take the abuse. We will have our first shipment this week, with our dual air feeds set up on one control handle, I will report what I can from our lab tests and soon (hopefully) will go for epa cert.

          Thanks.....Roger and Bridget.   

From: crispinpigott at gmail.com
To: stoves at lists.bioenergylists.org
Date: Tue, 16 Aug 2011 18:32:48 -0400
Subject: Re: [Stoves] Jatropha and its future



Dear Lloyd That is great news. If you are passing through Waterloo please stop in so we can do a couple of emission tests. I was working on the weekend to burn one of the worst fuels I have seen so far – a 100mm diameter high density sawdust log with no hole in the centre. Eventually I got it working well and boiled 5.2 litres in 16 minutes. I used a 130mm long piece standing up on end in a Vesto. I also tried drilling a 1 inch hole through the centre but to burn that it needs to be in ‘gasifier mode’. That means starting with a higher primary air flow then closing it. Not as convenient but possible. RegardsCrispin 
 		 	   		  
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