Thursday, January 26, 2012

Cheap Design principles for wood burning cook stoves for $14.14




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Original publisher: Washington, DC : U.S. Environmental Protection Agency, Office of Air and Radiation, [2005] OCLC Number: (OCoLC)495476451 Subject: Stoves, Wood -- Design and construction. Excerpt: ... Design Principles for Wood Burning Cook Stoves Ten Design Principles PRINCIPLE EIGHT: Use a grate under the fire. Do not put the sticks on the floor of the combustion chamber. Air needs to pass under the burning sticks, up through the charcoal, and into the fire. A shelf in the stove opening also lifts up sticks so air can pass underneath them. When burning sticks, it is best to have them close together and flat on the shelf, with an air space in between each stick. The burning sticks keep the fire hot, each fire reinforcing the other to burn more completely. It is optimum if the air passes under the shelf and through the coals so that when it reaches the fire it is preheated to help the gases reach complete combustion. Air that passes above the sticks is not as helpful because it is colder and cools the fire. A hot raging fire is clean, but a Figure 16-Use of a Grate Under the Fire cold fire can be very dirty. PRINCIPLE NINE: kilogram of food or a liter of water? Using Insulate the heat flow path. Cooks tend to like insulative materials in the stove keeps the flue gases stoves that boil water quickly. This can be especially hot so that they can more effectively heat the pan important in the morning when family members or griddle. Insulation is full of air holes and is very need to get to work. If heat goes into the body of light. Clay and sand or other dense materials are the stove, the pot boils less quickly. Why heat up not insulation. Dense materials soak up heat and fifty or one hundred kilograms of stove each divert it from cooking food. morning when the desired result is to heat up a PRINCIPLE TEN: Maximize heat transfer to the pot with properly When designing a stove, it is possible to decrease sized gaps. Getting heat into pots or griddles is the gap ...








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