[Stoves] Fuel Testing

[Tom Miles]

Frank,

You may also be interested in fuel properties. You have probably found the
links on the stoves site at:
http://bioenergylists.org/en/node/569

Among those, the appendices to our Alkali Deposit Investigation (1995) has
complete analyses for many biomass fuels: proximate, ultimate, heating
value, water soluble alkali and elemental ash composition.
http://www.trmiles.com/alkali/alkali.htm  These were mainly industrial
boiler fuels. You'll find the biggest differences are between woods and
grasses. As Dr. Karve and others have pointed out lots of grasses find their
way into stoves. 

We didn't analyze manures in this study because only one plant was burning
manure in the US at the time. Besides our manures won't be representative of
dung and manure used in rural areas of developing countries. You can find
analyses of poultry litter, turkey litter and swine solids that we've worked
with at:
http://www.brbock.com/TRM_BRB_.pdf      

Tom

 

-----Original Message-----
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of frank at compostlab.com
Sent: Sunday, October 01, 2006 12:05 PM
To: stoves at listserv.repp.org
Subject: [Stoves] Fuel Testing

Dear Stovers,

I'm about to present my 'introduction' formula (in Excel) for the fuels
program.  Only thing left is running a few examples of different fuels
through the program. 

Also; There is a part I would like to add but do not know how and would like
some help. I have the calculations for carbon densities. I think I would
like to subtract from that the carbon needed to remove the water from the
fuel. 

My questions are: If you use dry wood to boil a pot of water and determine
the energy produced. Then take the same type of wood and soak into it, say,
100 mls water and repeat the test is some of the energy in the wood reduced
because of the water or, because the wood will dry during the fire and the
carbon later used, it doesn't make a difference?  If some of the energy
(carbon) in the fuel is needed to first remove the water (cooled to make
steam) is there an estimate of the amount of carbon 'wasted' to remove a
gram of water? Am I thinking about this in the right way?

Thanks

Frank

www.compostlab.com

_______________________________________________
Stoves mailing list
Stoves at listserv.repp.org
http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org