[Stoves] Heat transfer and in-line water heater

[frank]

>Dear stovers
>  
>
>>OK but it looks like we are looking at 20-30% heat transfer into the 
>>pot, that looks like quite a lot of scope for improvement, 
>>    
>>
I am wondering how that was determined. It seems we should be looking at 
the carbon in the fuel that has been used (carbon in the wood at start  
- organic carbon in the ash).



Also; When I fill up the furnace with about 250 samples per week to ash 
and determine the organic matter on a wide range of types of organic 
materials, and I add acid to remove the inorganic carbon (carbonates) 
there is most always a lot of fizzing.  I am thinking the CO2 released 
under pressure could be used to aid in mixing.  Perhaps as the ash is 
formed a drip of non-volatile H2SO4  or a pool of  H2SO4  in a cup at 
the bottom of the stove would  release  a burst of CO2 that would mix 
the gas without steam. HCl would also work but this acid is volatile 
making corrosion  a big problem but would this also release hydrogen 
that would benefit? I'm thinking more in the line of safer H2SO4.

 
Frank







Frank Shields
Soil Control Lab
42 Hangar way
Watsonville, CA  95076
(831) 724-5422 tel
(831) 724-3188 fax
frank at compostlab.com
www.compostlab.com