[Stoves] Gathering data on TLUD stoves was Re: Last? Alternative to Charcoal
Robert Fairchild
solarbobky at yahoo.com
Sat Apr 27 11:43:48 CDT 2013
I was looking at this stove while this email was coming in:
http://arti-africa.org/2010/07/sampada-gasification-stove/
"Having
an outer body of stainless steel, the stove has a fuel holder made of
mild steel. Products such as wood chips, pellets, biomass briquettes,
small twigs and wood chunks are used for producing the fuel required for
cooking. Moreover, after cooking is complete, charcoal is left behind
in the fuel holder as a by-product. For instance, on burning 1 kg of
wood leaves, around 250-300 g of charcoal would be produced."
Wouldn't
it last a lot longer (and be cheaper) to uses stainless for the fuel
holder and mild steel for the outer? (But it wouldn't be as shiny!)
Bob
--- On Sat, 4/27/13, Paul Anderson <psanders at ilstu.edu> wrote:
From: Paul Anderson <psanders at ilstu.edu>
Subject: Re: [Stoves] Gathering data on TLUD stoves was Re: Last? Alternative to Charcoal
To: "Discussion of biomass cooking stoves" <stoves at lists.bioenergylists.org>
Cc: "Sujatha Srinivasan" <sujatha.srini at gmail.com>, "biochar at yahoogroups.com" <biochar at yahoogroups.com>, "Hugh McLaughlin" <wastemin1 at verizon.net>, "Bob Fairchild" <solarbobky at yahoo.com>
Date: Saturday, April 27, 2013, 12:25 PM
Dear AD,
Below is the data for your stove. It is GREAT for our
discussions.
1. Making a PROFIT from the charcoal means that the fuel is
actually better than free!!!! As long as the fuel supply is
sustainable, this is BETTER THAN any consideration of fuel
efficiency or energy efficiency.
2. The emission of
CO = 8.1 gm
Particulate Matter = 69 mg
may or may not be excellent. We do not know how to interpret
those number when the cooking task was only stated as
Emission Results (for cooking 2.5 lit
of food)
You can help interpret that, but until we have some uniform way of
reporting and comparing, we only have non-comparable numbers.
That is a big part of OUR problem (Our meaning all of us.)
Perhaps the agency that did the testing can help interpret the
result. It that cooking task something standardized in India?
Thank you for your data of results. It is not the same as
providing the RAW data as collected, but it is progress.
Is there some Stover or Biochar Buff who would like to undertake
compiling the results from TLUD stoves?
Details in brief
Stainless steel outer body, mild steel fuel chamber
Fuel: Wood chips, pellets, biomass briquettes, small
twigs, wood chunks, etc.
Charcoal produced as a by-product
Features of Sampada Stove
Source of Additional income
After cooking, charcoal is left behind in fuel holder.
Burning 1 kg of wood, leaves 200 g of charcoal.
Cost of fuel wood (1 kg) = INR 2
Value of charcoal by-product (200 gm) = INR 3
Hence, profit earned / kg used fuel = INR 1
A clean cooking
device
Emission Results
(for cooking 2.5 lit of food)
CO = 8.1 gm
Particulate Matter = 69 mg
MRP
of Sampada (packaging and transport extra): INR 2150
(USD 43)
Paul S. Anderson, PhD aka "Dr TLUD"
Email: psanders at ilstu.edu Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 4/27/2013 10:55 AM, Paul Anderson wrote:
Dear Stovers. I am seeking data
about TLUD stoves. I start with the response below to AD
Karve.
Dear AD,
Nice website.
Your Samuchit stove is a type of TLUD. What test results do
you have about it? ALL types of tests, including the CO and PM
emissions, please.
It sells for US$43. Please tell us some production numbers,
etc.
And lets try to get similar data about the Champion TLUD made by
Servals in Chennai.
Data for the Quad 2 TLUD are already posted, but lacking CO and
PM testing (equipment was not functional at the time of the
other tests, so I will try to have that testing done when I am
in Uganda soon.)
NOTE: At Stove Camp at Aprovecho 22 -26 April, the major
thrust will be about TLUD stoves, with use of the LEMS / PEMS
etc to collect comparative data and to search for ways to
further improve all TLUD stoves. I will be there as one of the
camp leaders. We want the Samuchit and Champion and other
TLUDs there for for some important exploratory testing. And we
hope that many Stovers will attend.
Paul (I am Paul A. or Dr TLUD. There is also Paul M. -
Paul Means of Burn Labs, and also Paul O. in Vietnam with Rice
Husk TLUDs, and maybe some other Paul's who are on the Stoves
Listserv but not sending so many messages.)
Paul S. Anderson, PhD aka "Dr TLUD"
Email: psanders at ilstu.edu Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 4/27/2013 6:39 AM, Anand Karve wrote:
Dear Paul,
please have a look at our web site www.samuchit.com
which describes the cooking devices being offered by us. One
of our stoves called Sampada (which means wealth) gasifier
stove generates about 200g charcoal from 1 kg woody biomass.
The villagers can earn money by selling the charcoal to the
village blacksmith. Woody biomass in the form of stalks of
cotton and pigeonpea, shells and leaf raches of coconut,
and woody pods of various trees are available to the villagers
free of cost. The name Sampada was chosen for this stove
because it generates money by burning woody fuel that is
available for free. Our Sarai cooker is also a very popular
cooking device. Using the combination of the Sampada
stove (for burning the woody biomass) and the Sarai (meaning
celebration) cooker for burning the charcoal, the entire meal
for a family of five can be cooked by using just 1kg woody
biomass. This of course does not leave any charcoal for the
soil.
Yours
A.D.Karve
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