[Stoves] Comments about T-LUDs

[Roger Samson]

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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