[Stoves] Hypothesis for Wonderwerk TLUD-ND

Paul Medwell paul.medwell at adelaide.edu.au
Thu Sep 1 21:12:07 CDT 2016


Dear Kirk, Paul and all,

Kirk: thanks for circulating your hypothesis. This seems well-founded.
Paul: measuring long-chain hydrocarbons / tars is part of the planned 
project of PhD student Thomas Kirch.

The intention is to measure the tars fairly soon. The catch is that our 
existing micro-GC isn't suitable for this, and finding someone who is 
willing to put our tars in their GC-MS is proving difficult. Until we 
get funds to buy our own, any suggestions for other ways of 
characterising the tars?

Cheers,
Paul

On 1/09/2016 10:53 PM, Paul Anderson wrote:
> Kirk,
>
> The Wonderwerk Man has again done wonderful work!!!!   Stove Summit, 
> Stove Camp, assisting Dennis (who then won the Cat Pee award), and 
> cooking with Flip.  It is always a pleasure being with you.
>
> The hypothesis (explanatory document) is well done.  All serious stove 
> researchers should read it.  Where is this document being placed for 
> public access.   I offer to place it at the drtlud.com   website.  
> (Send your reply to James Schoner directly or via the Stoves Listserv; 
> I will be in Mexico for the next 13 days).
>
> Hypotheses are statements that ask to be confirmed.  The folks with 
> the scientific equipment can now step in and see if the long-chain 
> hydrocarbons are indeed breaking up when and where indicated by the 
> hypothesis.  Good if that could be soon, but I expect not.  In the 
> meantime, the excellent low emissions (which are facts, not 
> hypotheses) speak for themselves.
>
> The needed scientific studies would help answer several questions such 
> as whether all three steps (levels) are needed to accomplish the low 
> emissions and the ability for turn-down to low fire.
>
> About turndown such as when cooking in Flip's oven, a different 
> solution is to have a second gasifier reactor (fuel chamber) that has 
> a smaller diameter.
>
> Keep up the good work!!   (werk)
>
> Paul
> Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
> Email:psanders at ilstu.edu
> Skype:   paultlud    Phone: +1-309-452-7072
> Website:www.drtlud.com
> On 9/1/2016 12:34 AM, kgharris wrote:
>> All,
>> Talking about stoves at the InStove Stove Summit and Aprovecho Stove 
>> Camp made me think through the workings of our Wonderwerk TLUD-ND.  
>> I needed to create a working hypothesis of why it burns as cleanly as 
>> it does.  Attached is the hypothesis.  It may not be completely 
>> correct, but it does provide an explaination, or at least a place to 
>> start an explaination.  There is a lot that I don't know about 
>> this burning method and a lot of work left to be done.
>> At Stove Camp, Sam Bentson, Aprovecho's lab engineer offered to help 
>> me probe into the pressure variations in the stove.  I was sadly 
>> involved with too many things to take him up on it.  My loss!  What I 
>> did do was to support Dennis, a visiting student from China, in his 
>> development of a wok support with skirt and chimney. He tested it on 
>> top of the latest Wonderwerk TLUD-ND stove and the results were 
>> impressive.  He made several adjustments to the dimensions which 
>> seemed to improve its performance even more.  He required only high 
>> power and no turn-down.
>> After Stove Camp I visited with Jon and Flip Anderson.  We put 
>> an older Wonderwerk TLUD-ND under one of their clay ovens, and baked 
>> a cake.  It required two fuel (vertically arranged split sticks of an 
>> unknown variety of hardwood) loadings of the stove, the first to heat 
>> the oven and give about 30 minutes of baking and the second finished 
>> the 1 hour baking time.  This showed the need for turn-down 
>> capability for oven baking. The latest Wonderwerk stove, which I had 
>> left at Aprovecho, would very likely have done it with only one load 
>> of fuel, because of better turn-down and more efficient burning.
>> I hope you enjoy looking through the hypothesis.
>> Kirk H.
>> Santa Rosa, CA. USA
>>
>>
>> _______________________________________________
>> Stoves mailing list
>>
>> to Send a Message to the list, use the email address
>> stoves at lists.bioenergylists.org
>>
>> to UNSUBSCRIBE or Change your List Settings use the web page
>> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
>>
>> for more Biomass Cooking Stoves,  News and Information see our web site:
>> http://stoves.bioenergylists.org/
>>
>
>
>
> _______________________________________________
> Stoves mailing list
>
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
>
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
>
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20160902/58d7abb0/attachment.html>


More information about the Stoves mailing list