[Stoves] List of woods for TLUDs?

Sun Apr 30 15:11:14 CDT 2017

AD:   (adding list - as AD’s point is one that should be seen by all)

	Thanks.

	I agree with your correction of my correction;  leaves by themselves aren’t going to work in a TLUD (or in a rocket).  I was thinking wood and wrote biomass.

	But there are ways of turning leaves into a usable fuel - both through pelletizing and making briquettes.  Especially for TLUDs.

Ron

	
> On Apr 29, 2017, at 5:04 AM, Anand Karve <adkarve at gmail.com> wrote:
> 
> Dear Ron,
> I too differ with your second sentence. Dry leaves of trees often pose a problem in a TLUD stove. Most leaves remain more or less flat when dry. When loaded into a TLUD fuel chamber, they do not allow air from the bottom holes to reach the burning biomass at the top. We tried unsuccessfully a lot of ways of stacking them. So now we tell our clients not to use dry leaves in a TLUD stove.
> Yours
> A.D.Karve
> 
> ***
> Dr. A.D. Karve
> 
> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com <http://www.samuchit.com/>)
> 
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
> 
> On Sat, Apr 29, 2017 at 1:59 PM, Ronal W. Larson <rongretlarson at comcast.net <mailto:rongretlarson at comcast.net>> wrote:
> AD and list:
> 
> 	1.  I agree with your first sentence below. Additionally, we should mention non-woody biomass - especially rice husks, which have extremely low density.   The only low density fuel I never was able to use in a TLUD was dung.  I consider this another major plus for TLUDs.
> 
> 	2.  I differ on your second sentence.  I think a TLUD is to be preferred for all forms of biomass.
> 
> Ron
> 
> 
>> On Apr 28, 2017, at 7:36 PM, Anand Karve <adkarve at gmail.com <mailto:adkarve at gmail.com>> wrote:
>> 
>> It is also my experience that the wood considered to be undesirable for a normal wood burning stove turned out to be highly suitable for a TLUD stove. One should use the dense woods in a normal wood burning stove and less dense woods in a TLUD stove.
>> Yours
>> A.D.Karve
>> 
>> ***
>> Dr. A.D. Karve
>> 
>> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com <http://www.samuchit.com/>)
>> 
>> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>> 
>> On Sat, Apr 29, 2017 at 2:20 AM, Frank Shields <franke at cruzio.com <mailto:franke at cruzio.com>> wrote:
>> 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 <mailto: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 <mailto:fShields at keithdaycompany.com>
>> 
>> 
>> 
>> franke at cruzio.com <mailto:franke at cruzio.com>
>> 
>> 
>> 
>> 
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>> 
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> 

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