image galleries

• 

  Alexis Belonio

  There are 28 images in this gallery

  Last updated: October 9, 2008 - 14:51

• Aprovecho Charcoal Rocket Stove

  There are 0 images in this gallery

• ASHDEN 2006 FINALISTS

  There are 4 images in this gallery

  Last updated: November 16, 2006 - 10:48

• 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: January 29, 2007 - 22:17

• GTZ Kenya

  There are 8 images in this gallery

  Last updated: February 4, 2007 - 11:07

• Hangzhou Sustainable Agricultural Food & Fuel Enterprise Co.

  Frank Flanagan Micro Gasifier

  There are 8 images in this gallery

  Last updated: February 15, 2007 - 20:46

• 

  Lanny Henson

  Photos of burners and stoves built by Lanny Henson. http://www.lanny.us

  There are 35 images in this gallery

  Last updated: October 9, 2008 - 13:35

• MCS Maputo Ceramic Stove

  First Tests of Maputo Ceramic Stove (MCS) by New Dawn Engineering, Crispin Pemberton-Pigott, Swaziland
  August 21-22, 2006

  There are 0 images in this gallery

• 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 2 images in this gallery

  Last updated: September 23, 2006 - 13:57

• Michael N Trevor Enemonet

  There are 3 images in this gallery

  Last updated: January 24, 2007 - 21:21

• N. Sai Bhaskar Reddy Good Stove

  There are 0 images in this gallery

• 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 2006

  It 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
  Johannesburg

  There are 11 images in this gallery

  Last updated: September 7, 2006 - 18:02

• 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 2007

  There are 33 images in this gallery

  Last updated: March 23, 2007 - 21:40

• 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
  Crispin

  There are 18 images in this gallery

  Last updated: February 18, 2007 - 22:48

• Puffergas

  www.puffergas.com

  There are 0 images in this gallery

• 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.net

  There are 3 images in this gallery

  Last updated: September 7, 2006 - 18:26

• Richard Stanley

  There are 70 images in this gallery

  Last updated: February 20, 2007 - 22:32

• 

  Rodolfo Diaz Jimenez

  There are 6 images in this gallery

  Last updated: October 9, 2008 - 13:03

• 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: September 30, 2006 - 16:25

• Turbo Stove

  There are 2 images in this gallery

  Last updated: September 7, 2006 - 18:26

• Vermont Heat Research

  Experimental Green Wood Chip Burning Furnace
  Steve Redmond
  Vermont Heat Research
  4640 Guilford Center Rd.
  Guilford, VT 05301
  802-258-3866

  There is 1 image in this gallery

  Last updated: December 7, 2006 - 21:10

• Ken Goyer, Aprovecho Research Center

  There are 41 images in this gallery

  Last updated: October 15, 2006 - 23:02