[Stoves] Re tar in P-gas

[user-05 at list.ru]

I'm on gasification boilers BLAGO made ??of wood burning, humidity 75%
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http://blogs.mail.ru/list/user-05/








----- Original Message ----- 
From: "Otto Formo" <formo-o at online.no>
To: "Crispin Pemberton-Pigott" <crispinpigott at gmail.com>; "'Discussion of 
biomass cooking stoves'" <stoves at lists.bioenergylists.org>
Sent: Wednesday, December 21, 2011 3:57 PM
Subject: Re: [Stoves] Re tar in P-gas


> Dear all,
> I guess Switchgrass is considered as excellent fuel in gasifisres, either 
> you call it a TLUD test or not?
> Pellets out of grass has proved to be suitable fuel in gasifiers, like the 
> Peko Pe.
> Now and even before, I dont see any or much difference from other types of 
> pellets made out of grass.
>
> The problems with slagging, can "easily" be avoided by using the char as 
> biocahr and removed before reaching that stage. isnt that correct, 
> Crisrpin?
> Then you also avoid the higher accumelated ash content as well.
>
> Have a nice an quite Christmas and Happy Holydays.
>
> Regards
> Otto
>
>> From: Crispin Pemberton-Pigott [crispinpigott at gmail.com]
>> Sent: 2011-12-20 22:23:10 MET
>> To: 'Discussion of biomass cooking stoves' 
>> [stoves at lists.bioenergylists.org]
>> Subject: Re: [Stoves] Re tar in P-gas
>>
>> Dear Paal
>>
>>
>>
>> Thank you for emphasizing that the fuel makes a difference to these
>> formations. A study of stove fuel moisture and its effect on emissions 
>> (not
>> a different fuel, just a different moisture level) was undertaken by
>> Ernestine Yuntenwi
>> http://opus.kobv.de/btu/volltexte/2008/458/pdf/diss_ernestine_pdf.pdf 
>> which
>> showed considerable variation in emissions even if the stove and pot were
>> the same. Different stoves react in completely different ways to a 
>> similar
>> change in fuel moisture. Some might stop operating altogether.
>>
>>
>>
>> Regards
>>
>> Crispin
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> ++++++++++++
>>
>>
>>
>> Dear Stovers
>>
>> There are at least three troubles on the cooking pot caused by stove and
>> type of fuel while cooking.
>>
>> 1. Soot, which is easy to clean
>> 2. Tar, which is more troublesome to clean
>> 3. Pitch, which is more like varnish and really difficult to remove.
>>
>> Which one of 2 and 3 are we talking about? All of them are possible to 
>> avoid
>> by using TLUD-ND with a good balance between the primary and secondary 
>> air,
>> and distance to the pot, but it differ a bit with type of fuel.
>>
>> Regards Paal W
>>
>>
>>
>


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