[Stoves] ANALYSIS OF A TOP LIT UPDRAFT GASIFICATION SYSTEM DESIGNED FOR GREENHOUSES AND HOTHOUSES

[Paul Anderson]

Frank and all,

I do not believe that 70% porosity is a realistic number.   Pellets work 
very well and are certainly with less porosity.

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 8/29/2017 4:18 PM, Frank Shields wrote:
> Dear Roberto and Stovers,
>
> It is an interesting design that preheats the secondary air and gives 
> it some velocity. I would think the flame front would be hard to keep 
> uniform with the obstruction in the center. They also mention that the 
> packed fuel is best when there is 70% porosity for achieving the 
> proper airflow. Determining Bulk Density and Particle Density this can 
> easily be determined. I’m also thinking adding in carbon densities may 
> also be useful to determine the energy in the primary flow. They 
> mention the size best being 40 - 50 mm chopped. So I am thinking more 
> ‘cube like’. shaped particles. Otherwise the size is not a good 
> measure to estimate porosity because shape will have more to so with 
> porosity than size. They also mention moisture as being important.
>
> So just in this article we have a list of important measurements for 
> the fuel useful if we want to optimize the combustion and as indicator 
> of the stoves usefulness in a different location. Also what pre-prep 
> may be required of the biomass at hand to be used in this stove.
>
> Regards
>
> Frank
>
>
>
>
>
>
>> On Aug 29, 2017, at 10:46 AM, Roberto Poehlmann 
>> <roberto.poehlmann at gmail.com <mailto:roberto.poehlmann at gmail.com>> wrote:
>>
>> Hi all,
>> This is an interesting work done in Bulgaria about Tlud stoves for 
>> heating greenhouses and generate biochar:
>>
>> https://www.researchgate.net/profile/Edmond_Maican/publication/309380324_Poster_Edmond_Maican/links/580c96b708ae2cb3a5da72e5/Poster-Edmond-Maican.pdf?origin=publication_detail
>>
>> https://sgemworld.at/sgemlib/spip.php?article7750
>>
>> It has an interesting design for mixing secondary Air with the syngas.
>>
>> Cheers
>> Roberto Poehlmann
>> Valdivia, Chile
>>
>>
>> -- 
>> Atte.
>> Roberto
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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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