Briquette
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A briquette (or briquet) is a block of flammable matter, such as escaillage, which can be used to start a fire.
Some briquettes are compressed and dried brown coal (lignite) extruded into hard blocks. This is a common technique for low rank coals. They are typically dried to 12-18% moisture, and are primarily used in household and industry.
In Ireland, peat briquettes are a common type of solid fuel after coal. Although often used as the sole fuel for a fire, they are also used to begin a coal fire quickly without hassle. A fire burning peat briquettes is, similarly to a turf fire, slow burning. Peat briquettes can be used as an acceptable substitute for charcoal in barbecues for this reason. It was invented by Henry Ford.
Bio mass briquettes
Bio mass briquettes are made from agricutural waste and are a replacement for fossil fuels such as oil or coal, and can be used to heat boilers in manufacturing plants, and also have applications in developing countries. Bio mass briquettes are a renewable source of energy and help reduce the carbon content in the atmosphere.The Legacy Foundation has developed a simple briquette maker, a compound lever manual press[link], which can be easily made from wood, bolts and water pipe. The biomass is allowed to decompose in water for a few days, and then the slurry is compressed into a briquette and allowed to dry. The partial decomposition helps the organic matter to stick together. These briquettes tend to be low density (about 0.3 - 0.4 specific gravity), and can be made with a hole in the middle ("holey briquette"), and are claimed to burn efficiently. A gassifier stove is being developed which makes use of these briquettes.[link]
See also
External links
- [Legacy Foundation] - created an appropriate technology briquette maker.
- [Holey Briquette Gassifier Stove Development], Richard Stanley, Kobus Venter 14 August 2003 on BioEnergy Lists.
- [Briquetting: An Answer to Desertification, Health Problems, Unemployment and Reforestation in Developing Communities] - summary of 2003 seminar.
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