A drawing for a pressure and flow meter by Frans Peters, an aid in fan design.

A drawing for a pressure and flow meter by Frans Peters, an aid in fan design.

Hay Box/RHC: Cooking in a Basket website
Elizabeth Riddiford,Community Conservation Initiative (CCI-Kenya), June 1, 2007
Kakamenga Basket

ABC Rural: The Solar Nest
Caleb Cluff, Australia, February 2007
Solar Nest

Institutional Barrel Stoves in Northern Uganda: Theory vs. Reality
Damon Ogle, Aprovecho Research Center, February-March 2007
FredaPerforms Controlled Cooking Tests

Laboratory Testing of Rocket Stoves of Various Capacities As Compared to the Three Stone Fire
Dean Still, Nordica MacCarty, Aprovecho Research Center, April 2007

In an effort to understand the relationship between stove capacity and fuel use and emissions the performance of three sizes of rocket stoves were compared.

[img_assist|nid=1582|title=|desc=|link=node|align=center|width=758|height=450]

The stoves were tested with the 2003 UCB revised Water Boiling Test. Pots that were integral to the stoves were used without a lid. Kiln dried Douglas fir at approximately 10% moisture content was burned in all tests. Only one test was performed on the household stoves. Therefore, results are not statistically valid but should be useful for general comparison. The [attached] graphs show results from three Rocket type stoves as compared to a carefully tended Three Stone Fire.

As seen at ETHOS 2007, we have put together a step be step video on how to build Damon Ogle's design of an Institutional Barrel Stove. The stove is constructed from 200L barrels.

The stove was able to bring 45L of water to boil in 37 minutes using only 2150g of wood.

In a Controlled Cooking Test the Institutional Barrel Stove used 73% less fuel than an open fire!!

The video is available in multiple part downloads here on our website www.aprovecho.org

The video is also available on DVD for $10 + Shipping.

[img_assist|nid=1311|title=Pelton Wheel|desc=Figure 135|link=node|align=left|width=190|height=200]

Below you will find a Pelton Wheel article that was translated by Martin Boll. The original text is italicized.

[1] (The young machinery constructor)

[2] (A Introduction into the elements of maschnery-construction and instruction
for making small models)

[3] "Adams Machinery-Book for Boys"Der junge Maschinenbauer (The young machinery constructor) Eine Einführung in die Elemente des Maschinenbaus und Anleitung zur Herstellung kleiner Modelle (A Introduction into the elements of maschnery-construction and instruction for making smal
(Copyright 1909 By Harper & Brothers)

[4] There, where a relative small amount of water, but a stronger
pressure is available, we use as well a sort of undershot water-wheel, by
using the high water-pressure with very high speed to bound against the
paddles of the wheel.
"

Vitagoat Steam Boiler
Malnutrition Matters, Ottawa, Canada

Steam boiler: Operates on wood or other solid fuels or liquid gas. Steam-injected pressure -cooking can be 10 times more fuel efficient than traditional open fire cooking and more efficient than improved stove-design cooking. Water is heated in an inner chamber and the resulting steam is re-heated in a tube, creating a “superheated steam” that is much hotter than regular steam. The steam is then fed into the cooker. The boiler is inexpensive to build, safe, and can be taken apart for cleaning, which is critical since most boilers accumulate scale on their inner shells and eventually fail.

Foundation for Sustainable Technologies - FoST Non-Solar Technologies:
Sanu Kaji Shrestha November 2006

FoST Rocket