[Stoves] List of woods for TLUDs?

[Frank Shields]

Hi Neil,

I believe the test package I put together would answer your questions. That because when working on the procedures and selecting the different tests I had what you are referring to in mind. They include test like:
Moisture, size distribution, particle shape, particle density, bulk density, void space (for air flow), volatiles and fixed carbon using the pipe method, Ash and ash properties, - I think that is about it as I remember. I had some other ideas using air flowing artificial ’smoke’ but to lack of interest never followed through. 
Then we need to correlate the results from the above tests to determine how they relate to a stove performance. That I never attempted but I do think I have all the methods and tests that is appropriate to do the job. 

Regards

Frank





> On Apr 28, 2017, at 10:01 AM, neiltm at uwclub.net wrote:
> 
> I live in the UK, so my references below to species of wood are biased 
> for this part of the world.
> 
> I have been looking for information about the burn quality of different 
> woods, but mostly can only find information relating to open fires.
> 
> Poplar in its various sub species is generally rated low as a desirable 
> burning wood, and described as 'smoky'.  I just burned some dried Italian 
> poplar in the Reed sl woodgas campstove, and although it made a smoky 
> start, which was probably down to my lighting technique or lack thereof, 
> once underway it burned completely smokelessly and with no stinging of 
> the eyes until just before the end when it again produced some smoke 
> briefly.
> 
> I would like to understand more about the qualities of different woods in 
> relation to TLUD stoves and wondered if anyone has ever attempted to 
> classify or rate woods for these stoves?  I understand that some woods 
> like hornbeam, plum, hawthorn are the most dense (highest mass), and 
> therefore likely to liberate more heat or a longer burn per batch, and 
> that woods like willow or poplar are at the lighter end of the spectrum.
> 
> With poplar in particular I would like to understand why it is a smoky 
> wood, which it is if you burn it on an open fire?  Should that not mean 
> it produces more wood gas, thereby making it ideal for TLUDs?  I have yet 
> to find a problematic wood for these stoves unless it is our cultivated 
> apricot in the garden which has always been truly terrible, even when 
> dry.  Yet fruit woods are supposed to be prized!
> 
> Neil Taylor
> 
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Thanks

Frank
Frank Shields
Gabilan Laboratory
Keith Day Company, Inc.
1091 Madison Lane
Salinas, CA  93907
(831) 246-0417 cell
(831) 771-0126 office
fShields at keithdaycompany.com



franke at cruzio.com