USA

ETHOS Lighting of the stoves
CREEC, Aprovecho Sam and others at ETHOS 2015
StoveTec TLUD with a toasting marshmallow
StoveTec Stove - new Colors
Christa Roth sitting near the StoveTec stoves
Peter Scott and others ETHOS 2015
Kirk Harris TLUD
Rocket Works Stove ETHOS 2015

ETHOS Cooking Stoves Conference in Kirkland, Washington January, 2015.
for more about the next ETHOS Conference see http://www.ethoscon.com/

The ETHOS conference brings together people involved in stove design, dissemination, and testing from Universities, Government, and Non Government organizations, and has themes around the topics of improving cook stove design and performance, reducing emissions, and improving stove adoption, but listening to the needs of the people using the stoves. It ends with the 'lighting of the stoves' which is a demonstration of some of the cooking stoves that people have talked about in the conference.

In addition to capturing photos of the stoves, this year I captured a few pictures of the crowd of attendees comparing stove designs, toasting marshmallows, etc.

The big green stove is the InStove institutional rocket stove http://instove.org/

The lovely people taking pictures were from CREEC ( Energy and Energy Conservation ) which presented a great analysis of current cooking stove tests and some insights to improve them. They also noted that fans typically fail in Uganda, and there are no fans available to replace them.
For more about CREEC see http://creec.or.ug

StoveTec and Aprovecho presented some interesting innovations in stove design that they hope to field test in the coming year. The light green stove has an insulated top door for adding fuel to their TLUD style stove. The purple stove is their rocket stove that has been optimized for improved particulate emissions, with an improved set of colors.
For more about StoveTec stoves see http://stovetecstore.net/
for more about Aprovecho and stove testing see http://www.aprovecho.org/lab/index.php

I was happy to get a good picture of Christa Roth of GiZ her handbook of MicroGasification is outstanding, to download a copy go to https://energypedia.info/wiki/File:Micro_Gasification_2.0_Cooking_with_g...

File attachments: 
wocket stove with wok
wocket stove galvanized interior
wocket stove galvanized finished
wocket stove stainless interior
wocket stove stainless finished

Wocket Stoves

Sustainable Berea wanted me to build them a couple of rocket stoves to be used with woks for stir frying lunch during their local Solar Tour.

I bought a couple of 14” steel woks for cooking and a 14” stainless steel wok and a 13 quart stainless steel bowl for skirts.

I used the stainless bowl with 4“ galvanized steel stovepipe and the stainless wok with 4” stainless steel stovepipe.

I used 4” Tees for combustion chambers, 2x4 metal stud piece for feed chamber and expanded metal for grate and back wall of combustion chamber.

I used 6 gallon metal buckets for the shells.

I put a 1” thick piece of ceramic fiber board under the bottom of each Tee.

I put an 8” stovepipe outside of the galvanized steel riser to reduce overheating and insulated between it and the bucket with fiberglass insulation.

I insulated around the stainless stovepipe with two 1” pieces of ceramic fiber blanket and between the ceramic fiber and the bucket with fiberglass.

Grass Tablet Biochar
4 cm Grass Tablets
Household Grill modified with an iCan reactor

The grass tablet biochar (pyrolytic carbon) shown above was made in an iCan TLUD
with a variable speed blower. This charcoal was air quenched and is thus bone dry.
When wet, it is very soft and can be formed to fit a variety of shapes. I have found, for
example, that grass tablet biochar saturated with cold water is effective at reducing the
pain of burns.

The following pages illustrate some of the ways the above biochar was made.
Note: Grass biochar will be ashy as grass has considerably more ash content that
wood

Grass tablets broken into short sections prior to being loaded into the fuel chamber of
the iCan reactor.
These tablets were made from field grass about 3 years ago in Shelburne, VT. Note
that the longest fibers are about the length of the diameter of the tablet. Shorter is
better.
These tablets are about 4 cm in diameter.

Download the attached Grass Tablet Biochar How To for detailed Reactor photographs and answers to questions posed to Jock by the stoves community.

ove Camp 2013 ----- July 22-26,2013 ----- Cottage Grove, Oregon

“Great Stoves” to meet the Global Alliance standards for clean, efficient, and safe cooking.”
Co-hosted by InStove, Aprovecho Research Center, and Paul “Dr. TLUD” Anderson
The Global Alliance for Clean Cookstoves is establishing standards, and this summer’s stove camp is going to focus on the design and delivery of stoves that meet them. We will be looking at the various proposed tiers of stove performance and see which stoves fall into what classifications. We’ll also be exploring design considerations for producers who are interested in building top-tier stoves.

Schedules will be available in early June.
For details, email Stella Strother-Blood at: Stella@instove.org. or Mike Hatfield: apromike@gmail.com

Registration: Mike Hatfield: apromike@gmail.com

A few more pictures to clarify how the Rim Fire iCan is built. It is quite simple.

Materials:

New video and print resources available at www.aqsolutions.org.

Contamination of drinking water sources by synthetic organic compounds (SOCs – e.g. pesticides, pharmaceuticals, fuel compounds, etc.) is a growing worldwide problem. Many of these chemicals bio-accumulate in the human body and cause cancer, birth defects and diseases of the reproductive system, and disrupt endocrine and neurological systems. However, few low-cost, sustainable and appropriate treatment technologies are available to rural and developing communities for SOC removal.

Water filtration using charcoal is an ancient practice that continues today in non-industrialized regions around the world, though it has not yet been rigorously demonstrated for removal of modern industrial pollutants. Unfortunately, charcoal production by traditional kiln systems is often a resource-intensive and highly polluting process, and kiln processes are typically not optimized for production of good water filter char. Low cost, energy efficient, environmentally sustainable and scalable local production of optimal water filter char can be accomplished with biomass gasification (e.g. cookstoves and larger units using the TLUD design).

The video and print resources available on the Aqueous Solutions website (www.aqsolutions.org) are intended to

  1. summarize current results of collaborative field and laboratory research pertaining to the use of traditional kiln charcoals and gasifier chars in decentralized water treatment that targets SOCs,
  2. provide instructional materials for construction and operation of small- and intermediate- scale gasifier char production units using local materials, and
  3. provide instructional materials for integration of biochar filtration into a multi-barrier small- and intermediate- scale water treatment systems constructed from inexpensive and widely available materials.

Aprovecho Stove Camp, April 2-5th, 2012

From Mike Hatfield:

Attached is a flyer for the week and here are some logistics for those interested.

Agenda

I will send out an updated agenda but a tentative agenda is as follows:

Stove Camp 2012

Day 1

Andrew C. Parker, October 2011

Lion Cub Stove
A variation on Larry Winiarski's 16 Brick Stove
and Crispin Pemberton-Pigott's Lion Stove

"I had been waiting all Summer to use my brother's StoveTek
stove to do some experiments. While searching a reference

Jock Gill, May, 2011

Jock has updated his iCan instructions on Flickr:
http://www.flickr.com/photos/jockgill/sets/72157626640937954/

from Jock's email:

The triplets of triplets in the secondary air supply is a significant improvement.

The 18-12-6 iCan now has much greater total time with a very well behaved flame and an air fuel mixture that is lean to good for most of the run.
There are still several minutes of a too rich mixture that does emit some soot.

Run time on 350 grams was 27:45, most of the smoke was gone within 2 minutes, just two floaters, and the biochar had a good clean nose. This is about as good as I have gotten so far.

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