[Stoves] Comments about T-LUDs

[CEDESOL Foundation lists]

Dr. Karve,
Once again you show us examples of efficiency and applicability.  One 
must be creative in solutions.Buying back carbon is super creative and 
showing the list how diverse applications solve multiple problems is 
refreshing.

Onward
un abrazo
David

adkarve wrote:
> Dear Roger and Paul,
>
>  We are currently installing about 100 biogas plants per month and the
> orders just keep coming, but even our compact biogas plant is too bulky for
> being installed in an urban apartment house, where the T-LUD would be more
> readily accepted. We feel that we have found a niche market for Paul's
> Champion stove. The roadside food vendors today use bottled LPG, which costs
> them from Rs. 100 to 200 per day. By using the Champion stove, they would be
> spending only Rs. 20 to 30 per day, and if they sell the charcoal to us,
> they pay nothing for the wood that they burn in the Champion. The charcoal
> that remains behind in the T-LUD stove is a bonus. Wood costs Rupee 1 to 2
> per kg. In the T-LUD, 1 kg wood leaves 300g charcoal behind. The cost of
> this much charcoal is about Rs.3. Thus by using a T-LUD you not only fully
> recover the price of the wood that you use but also make a profit by selling
> the residual charcoal. (1 US$=Rs.45)
> Yours
> A.D.Karve
> ----- Original Message -----
> From: Roger Samson <rsamson at reap-canada.com>
> To: 'Paul S. Anderson' <psanders at ilstu.edu>; 'adkarve'
> <adkarve at pn2.vsnl.net.in>
> Cc: <stoves at listserv.repp.org>
> Sent: Thursday, September 28, 2006 7:51 PM
> Subject: RE: [Stoves] Comments about T-LUDs
>
>
>   
>> Paul
>>
>> I am not sure but think maybe the biggest limitation of T-Luds is the
>> relatively modest energy conversion efficiency which limits the fuels we
>>     
> can
>   
>> use in them. It is great for wastes where you can recover the material as
>>     
> a
>   
>> carbonized soil amendment. However if we are making fuel pellets from
>> dedicated biomass fuels then we need to burn the residual charcoal as
>>     
> fuel.
>   
>> Not sure if this is very convenient or desired. T-Lud is perfect for rice
>> hulls like Alexis is developing commercially in the Philippines. The
>> carbonized rice hulls are an amazing soil amendment.
>>
>> From what I see there could be a huge market for an efficient burning
>>     
> stove
>   
>> for burning grass pellets and crop residue pellets. What we want to see
>> developed is low capital cost, lowest annualized cooking cost, convenience
>> and low GHG emissions.
>>
>> Roger
>>
>>
>> -----Original Message-----
>> From: stoves-bounces at listserv.repp.org
>> [mailto:stoves-bounces at listserv.repp.org] On Behalf Of Paul S. Anderson
>> Sent: Wednesday, September 27, 2006 11:30 PM
>> To: adkarve
>> Cc: stoves at listserv.repp.org
>> Subject: [Stoves] Comments about T-LUDs
>>
>> A.D.,
>>
>> Please clarify for me:
>>
>> Quoting adkarve <adkarve at pn2.vsnl.net.in>:
>>          snip
>>     
>>> We have now good wood burning
>>> stoves like those developed by Tom Reed, Paul Anderson and M/s Phillips.
>>>       
>>          snip
>>     
>>> In fact, these new wood burning
>>> stoves pose a serious threat to the spread of even the biogas system
>>> developed by me.
>>>       
>> First, thanks for the compliment.
>>
>> Second, thus far, the Reed, Anderson, Philips, and any other T-LUDs are
>> certainly not even a minor threat.  We and others are still trying to get
>>     
> a
>   
>> significant and sustainable experience going in a developing country.
>>     
> Some
>   
>> activities in the near future might turn the corner, but we are not there
>> yet.
>>
>> Third, the enormity of the task for implementing improved cooking
>> systems is so
>> large that I doubt that any type of wood burning stoves would be much of a
>> threat to the innovative biogas system that you have developed.  We need
>>     
> all
>   
>> the solutions that are possible.  There are multiple niches that could use
>> literally millions of the diverse heat-energy systems that we discuss on
>> this
>> Listserv.
>>
>> So, fourth, am I missing something in your comments?  What is your
>> assessment of
>> the potential of the T-LUD devices?  What are the major obstacles to their
>> success for significant niches of stove users?  All suggestions and
>> observations are appreciated, including those by other readers.
>>
>> Paul
>> --
>> Paul S. Anderson, Ph.D., Geography professor - Emeritus
>> Telephone:  USA-309-452-7072 (residence and office)
>> Internet site:  www.ilstu.edu/~psanders
>> For my gasifier stoves info, go to:
>> http://bioenergylists.org/contributors#Paul_Anderson
>>
>>
>>     
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>>>       
>>
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>>     
>
>
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