ENERGY FOR A SUSTAINABLE WORLD - World Resources Institute
ENERGY FOR A SUSTAINABLE WORLD - World Resources Institute
ENERGY FOR A SUSTAINABLE WORLD - World Resources Institute
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Figure 8. A High-Efficiency Wood Stove Designed by Applying Modern Scientific and Engineering<br />
Principles to the Cooking Task<br />
Air Inlet<br />
7.0 x 1.5<br />
Sheet Metal<br />
.8mm<br />
Fiberglass<br />
Insulation<br />
Air Inlet<br />
7.0 x 1.5<br />
Fuel Inlet<br />
3.0 x 3.0<br />
Cross Section<br />
Viewed From the Side<br />
(Dimensions in Centimeters)<br />
Cross Section of the Bottom<br />
Viewed From Above<br />
(Dimensions in Centimeters)<br />
Recent applications of the principles of heat transfer and combustion to fuelwood cooking stove design<br />
have resulted in simple, highly efficient stoves. Typically such improved stoves can pay for themselves in<br />
fuel savings within a few months.<br />
The stove shown here, made of sheet metal and insulation, is under development at the Indian <strong>Institute</strong><br />
of Science at Bangalore. The efficiency of this stove can be more than 40 percent compared to less than 20<br />
percent for protected open fires. Hazardous smoke emissions would also be greatly reduced with this type<br />
of stove.<br />
Good performance is due to the use of insulation to reduce heat loss through the walls; a unique combustion<br />
chamber design that promotes mixing of air with and recirculation of unburned volatiles until combustion<br />
is complete; and a narrowing combustion chamber and a narrow pot-to-stove channel width to increase<br />
the gas velocities over the bottom and sides of the pot, thereby improving the heat transfer to the<br />
pot.<br />
Source: H.S. Mukunda and U. Shrinivasa, "Single Pan Wood Stoves of High Efficiency, Part I," July 1985; H.S. Mukunda, et.<br />
al., "Single Pan Wood Stoves of High Efficiency, Part II," December 1985 (Bangalore, India: Indian <strong>Institute</strong> of Science),<br />
Centre for the Application of Science and Technology to Rural Areas.<br />
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