image galleries
Alexis Belonio
There are 28 images in this gallery
Last updated: October 9, 2008 - 14:51
Aprovecho Charcoal Rocket Stove
There are 11 images in this gallery
Last updated: November 1, 2008 - 09:09
Aprovecho Stove Camp
ETHOS Stove Camps Hosted by Aprovecho Research Center, Cresswell, Oregon
There are 4 images in this gallery
Last updated: October 30, 2008 - 22:32
ASHDEN 2006 FINALISTS
There are 18 images in this gallery
Last updated: October 30, 2008 - 22:26
Diseños de Estufas
There are 0 images in this gallery
Engineers Without Borders - Princeton University
EWB Project Peru
There are 0 images in this gallery
Estufa Quema Parafina
There are 0 images in this gallery
ETHOS
There is 1 image in this gallery
Last updated: October 30, 2008 - 12:04
FoST
There is 1 image in this gallery
Last updated: October 30, 2008 - 22:19
Frans Peeters
There is 1 image in this gallery
Last updated: October 10, 2008 - 09:44
GTZ Kenya
There are 8 images in this gallery
Last updated: October 23, 2008 - 22:32
Hangzhou Sustainable Agricultural Food & Fuel Enterprise Co.
Frank Flanagan Micro Gasifier
There are 8 images in this gallery
Last updated: October 18, 2008 - 20:40
Jeff Davis
There are 63 images in this gallery
Last updated: October 30, 2008 - 22:22
Lanny Henson
Photos of burners and stoves built by Lanny Henson. http://www.lanny.us
There are 39 images in this gallery
Last updated: October 9, 2008 - 13:35
Martin Boll
There are 26 images in this gallery
Last updated: October 10, 2008 - 07:56
MCS Maputo Ceramic Stove
First Tests of Maputo Ceramic Stove (MCS) by New Dawn Engineering, Crispin Pemberton-Pigott, Swaziland
August 21-22, 2006There are 10 images in this gallery
Last updated: November 1, 2008 - 12:47
Mesh Wick Experiments
Jigme Rangdrol June 2006
The original idea was to see if we could coax the gas from the fuel to climb up a mesh frame and burn above the fuel bed thus allowing us to see what was going on better and see subtle changes in CO burns.
There are 7 images in this gallery
Last updated: October 23, 2008 - 22:57
Michael N Trevor Enemonet
There are 3 images in this gallery
Last updated: October 30, 2008 - 22:11
MIT
There is 1 image in this gallery
Last updated: October 30, 2008 - 12:06
N. Sai Bhaskar Reddy Good Stove
There are 3 images in this gallery
Last updated: October 10, 2008 - 10:38
NDE Clay Ring Forming Machine For Stoves
Manual clay ring forming machine for making the combustion chamber of a small single-pot Rocket Stove.
New Dawn Engineering
Crispin Pemberton-Pigott June 1 2006It is operated in the same way as the Terrabric Machine on my website but makes Rocket Stove components, though it is not limited to Rockets.
The idea is to use 5 x 60mm high rings in a stove with the top three being whole. The bottom two are carved to make the Rocket shelf etc. They nest with the indexing step.
This will be sent to Malawi for use by ProBEC North. They are making domestic Rocket stoves - a portable one that is very unstable in my view - from bring too tall for its diameter. Anyway people are using them.
They are made with a galv sheet wrap-around. Apparently because of the insistence on using an insulative ring they are very difficult to form wet, weak and don't last. A pretty grim combination. This will allow us to make rings without the drying period. It also allows for the use of materials that do not dry well. i.e. have a large shrinkage rate and thus we open up the possibility of choosing materials that are designed to perform well when hot rather than when drying (a decision tree that dominates clay sepection).
The purpose of the machine is to form rings without having to make clay wet, mould it and then dry it again. It is expected that the rings will dry isotropically and that cracking will be kept to a minimum.
The idea is to avoid the drying stage entirely by not making the clay wet in the first place.
The ring is 120mm inside diameter and 220 outside, with a mm taper inside and out. The indexing lip is 8mm high.
The machine makes the rings is 60mm 55mm and 50mm heights. The height is selected by adding a 5mm shim into the lid section and choosing a different bolt hole on the lid hinge.
The bonding of the dry clay does not have to me very good, only enough to hold it together or be fired so the rings pictured here are actually 'wet' by clay brick making standards.
The moulding pressure is about 12 tons.
Yours truly
Crispin Pemberton-Pigott
Regional Technical Advisor
Programme for Biomass and Energy Conservation
GTZ/ProBEC South
158 Jan Smuts Ave
JohannesburgThere are 37 images in this gallery
Last updated: November 1, 2008 - 08:30
NDE Paraffin Stove
Here is a series of photos of the open source paraffin stove being made by New Dawn Engineering. Not shown are the external tank and hose which can be any suitable size or material. It is an FSP stove by type, which is a 'gravity stove' operating at a slightly elevated pressure but without a pump or compressed tank.
This stove is self-extinguishing if tipped over and features a high flame temperature, low CO emissions, excellent stability and robust construction. All the parts are separately replaceable. The frame is mild steel flat bar and the other parts are stainless steel save the screws. The CO/CO2 ratio is particulary low at less than 0.05%%. The heating power is 600 to 1800 watts varied by the brass control valve. The pot rests can be changed by the user. The basic unit without the top deck can be bolted under other devices like baking ovens or water heaters.
The fuel consumption is about 6 or more hours per litre on high and 12 hours turned down to 'half'.
It is available for $20 plus postage.
Best regards
Crispin Pemberton-Pigott
New Dawn Engineering
Matsapha
Swaziland
www.newdawnengineering.comThere are 12 images in this gallery
Last updated: November 1, 2008 - 07:46
New Dawn Eng: Jigger Mould Making for Maputo Ceramic Stove
This is a set of small pictures to show the process for making the moulds. The results are quite impressive - smooth and hard, beautifully formed. We can make about 10 or more moulds per day using the Jigger mould holder as a form.
March 2007There are 33 images in this gallery
Last updated: October 12, 2008 - 09:54
New Dawn Engineering Maputo Ceramic Stove Making Master Moulds
This method is used to make the master mould, from which other sets of outer moulds can be made to create additional moulds at a high rate.
The nylon form shown in the series is actually the tool for holding the moulds when they are put into the Jigger to make the stove body.
The tool is used to make a perfect master mould, drying slowly for more than a week. Following this, other sets of outer moulds can be cast around the master mould. There can be many of them. Each outer mould can be used to make several moulds per day, at least two. In this way the number of moulds required for mass production can be made, each virtually identical to the original master mould.
It is expected that to make 10,000 stoves a month we will need something like 200 moulds, produced from 2 or 3 outer moulds. As demand rises, more moulds are produced to run through the Jigger.
Each mould can produce 2 or 3 stoves bodies per shift.
Regards
CrispinThere are 18 images in this gallery
Last updated: October 18, 2008 - 20:32
Practical Action
Practical Action was founded in 1966, as ITDG (the Intermediate Technology Development Group), by the radical economist Dr EF Schumacher to prove that his philosophy of ‘Small is Beautiful’ could bring real and sustainable improvements to people’s lives.
There are 2 images in this gallery
Last updated: December 9, 2006 - 19:15
Puffergas
There are 2 images in this gallery
Last updated: October 10, 2008 - 07:10
Pyromid
In the Pyromid structure, as you know we organize the Briquettes in a Harmonic Thermal Array (HTA) at the Energy Center( 1/3 from the top) of the inverted reflective Pyromid.The reflective foil liner that goes into the Pyromid to catch the grease and ash has holes at the bottom that feeds and focuses the combustion air into the HTA. The Briquettes are spaced about 1/4 to 3/8 inch apart in the Vertical Array Mode so that they get plenty of combustion air and radiate their heat off of one another ( Harmonic Thermal Feedback). The result, they go to Super Heat in 4 to 6 minutes.Today,we have 250,000 Pyromids spread throughout the World. We have taken back 29 in 25 years, and for minor reasons. We have not had one liability claim. We sold some of the HTA technology to Charbroil . Pyromid has had 29 issued patents on its technology over the years. We also have Super Heat Inserts that go into Weber BBQ's. We can do with 9 briquettes in the 12" Pyromid what Weber does with 50 in the Smoky Joe. If you treat Charcoal Briquettes right,as demonsrated in the Pyromid (HTA)Efficient Combustion Technology, you get very satisfactory burning and heat release performance of Charcoal Briquettes. We have 25 years of proven performance in this area.Go to www.pyromid.net
Cheers!
Paul W. Hait
President
American Innovation Inc.
Bend, Oregon
541-318-6361
www.pyromid.netThere are 3 images in this gallery
Last updated: November 1, 2008 - 07:27
Richard Stanley
There are 69 images in this gallery
Last updated: October 15, 2008 - 09:04
Rodolfo Diaz Jimenez
There are 2 images in this gallery
Last updated: October 30, 2008 - 22:09
Roth GTZ IFSP
Chirista Roth,GTZ IFSP Mulanje Malawi
There are 2 images in this gallery
Last updated: November 1, 2008 - 07:47
Roth GTZ IFSP
There are 0 images in this gallery
STOws
Senegal Low Cost Ceramic Stove - GTZ-ProBEC September 2006
There are 20 images in this gallery
Last updated: October 23, 2008 - 22:35
Turbo Stove
There are 2 images in this gallery
Last updated: November 1, 2008 - 07:30
Vermont Heat Research
Experimental Green Wood Chip Burning Furnace
Steve Redmond
Vermont Heat Research
4640 Guilford Center Rd.
Guilford, VT 05301
802-258-3866There is 1 image in this gallery
Last updated: October 30, 2008 - 11:58
William Carr
There is 1 image in this gallery
Last updated: October 10, 2008 - 10:38
Ken Goyer, Aprovecho Research Center
There are 53 images in this gallery
Last updated: October 18, 2008 - 21:53