[Stoves] Stoves Digest, Vol 20, Issue 24

[Thomas Reed]

Dear ADK;

We are currently testing both the TLUD and the "kilning" reactions.  It 
would be great if all towns converted their biomass strash into 
charcoal, then pellets or briquettes.  As produced charcoal is VERY low 
density, hard to ship and store.  I'm lso testing making "fireballs" 
with chardust using a cement mixer.

TOM REED

ÐÏࡱá



adkarve wrote:
> Dear Tom,
> we have developed a kiln that works on the T-Lud principle. It is being
> field tested. We find that people have to get used to it, because different
> material requires different timings to get completely charred. Cardboard and
> paper, for instance get completely charred in about 5 minutes, whereas
> certain tough and heavy leaves take as much as 20 minutes. The oven and
> retort system is simpler to use, because the biomass to be charred is heated
> in the absence of oxygen. Therefore even overheating or longer heating does
> not turn the char into ash, as it does in the T-Lud charcoaling kiln.
> Yours
> A,D.Karve
> ----- Original Message -----
> From: Thomas Reed <tombreed at comcast.net>
> To: Discussion of biomass cooking stoves <stoves at listserv.repp.org>
> Sent: Thursday, March 06, 2008 6:59 PM
> Subject: Re: [Stoves] Stoves Digest, Vol 20, Issue 24
>
>
>   
>> Dear ADK:
>>
>> The process of Yuri burns some of the biomass to create the heat for the
>> rest.
>>
>> In our Toplit Updraft (TLUD) stove and charcoal maker we burn the
>> volatiles in a much faster process.  I doubt whether most opeople
>> understand the difference, but it is much simpler and cleaner.
>>
>> Yours truly,
>>
>> TOM REED
>>
>>
>> adkarve wrote:
>>     
>>> it is not at all necessary to use wood for making charcoal. We have more
>>> than a 100 kilns operating in India, and the raw material that we use
>>>       
> are
>   
>>> just dry leaves, agricultural waste, needles of conifers and paper and
>>> cardboard waste from cities. The process of charring is that of oven and
>>> retort, copied from the process used by Yuri.Therefore the pyrolysis gas
>>>       
> is
>   
>>> burned within the kiln itself and it is not allowed to pollute the
>>> atmosphere.
>>> Yours
>>> A.D.Karve
>>> ----- Original Message -----
>>> From: <acparker at xmission.com>
>>> To: Discussion of biomass cooking stoves <stoves at listserv.repp.org>
>>> Sent: Sunday, March 02, 2008 11:57 PM
>>> Subject: Re: [Stoves] Stoves Digest, Vol 20, Issue 24
>>>
>>>
>>>
>>>       
>>>> Jeff,
>>>>
>>>> Regarding charcoal burners, another negative I observed while in
>>>> Guayaquil, Ecuador, was their voracious appetite for wood.  Not wanting
>>>> to travel too far from their market, they stripped everything they
>>>>         
> could
>   
>>>> get their hands on in or near the city -- and this was only to supply
>>>> the occasional barbecue (for a city of 2 to3 million), as nearly all
>>>> families have access to subsidized gas for cooking.
>>>>
>>>> Ironically, I doubt that the fumes from charcoal production could be
>>>> differentiated from the great pall of smoke coming from the myriad
>>>>         
> fires
>   
>>>> burning the ever plentiful weeds that grow there.
>>>>
>>>> As with most seemingly good ideas (ethanol), charcoal burning gets a
>>>>         
> bad
>   
>>>> reputation because those who practice the art tend to follow the path
>>>>         
> of
>   
>>>> least resistence.  It would be great if they would process yard and
>>>> lumber waste, bagasse, rice hulls, and other agricultural waste, but
>>>> that is more complicated than stripping the roadsides and boulevards of
>>>> trees at two in the morning, clearing the hillsides or raiding the dry
>>>> rainforest and mangrove sanctuaries.  (Even if they would change to
>>>> briquetting carbonized waste, I don't know if the market would accept
>>>> briquettes over the traditional aesthetic of carbonized branches.)
>>>>
>>>> I remind those of you who advocate sequestering carbon what the logical
>>>> end such activity will take once carbon credits become an
>>>> internationally traded commodity.
>>>>
>>>> The recent upsurge in the popularity of socialism has revealed an
>>>> alarming trend.  Ecuador, cash starved to pay for new programs,
>>>> announced that they would open up one of their Amazon forest preserves
>>>> to oil exploration and production unless they were paid the opportunity
>>>> cost for keeping it out of production.  Expect to see more of this type
>>>> of ecological extortion, as well as export oriented land use laws and a
>>>> renaissance in hair-brained domestic industry schemes.  It is a perfect
>>>> environment for the worst case scenario with carbon credits.
>>>>
>>>> Be that as it may, I too am impressed with Yuri's efforts and hope that
>>>> it can be utilized appropriately and profitably.  There is certainly
>>>> great potential worldwide.
>>>>
>>>>
>>>> Stay positive,
>>>>
>>>> Andrew Parker (not AJH)
>>>>
>>>> "The glass IS half empty!"
>>>> an economist
>>>>
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>>>>         
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