Briquettes
About
Biomass briquettes can be made made out of agricultural
waste (agro residues) such as hulls, husks, corn stocks,
grass, leaves, food and animal garbage. They can also
include sawdust, paper, and junk mail. Advantages of
biomass briquettes include:
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A great substitute of firewood as fuel (40% more
efficient, longer burning, and hotter)
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Save trees and prevent problems like soil erosion
and desertification by providing an alternative to
burning wood for heating and cooking.
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Improve health by providing a cleaner burning fuel.
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Create microenterprise opportunities: making the
presses from locally available materials, supplying
materials and making the briquettes, selling and
delivering the briquettes.
Briquettes
"Briquettes can be produced with a density of 1.2 g/cm³
from loose biomass of bulk density 0.1 to 0.2 g/cm³
These can be burnt clean and therefore are eco-friendly
arid also those advantages that are associated with the
use of biomass are present in the briquettes." (RWEDP)
Presses
"Two main high pressure technologies are available for
producing briquettes: ram or piston press and screw
extrusion machines. While the briquettes produced by a
piston press are completely solid, screw press
briquettes on the other hand have a concentric hole
which gives better combustion characteristics due to a
larger specific area. The screw press briquettes are
also homogeneous and do not disintegrate easily. Having
a high combustion rate, these can substitute for coal in
most applications and in boilers." (RWEDP)
Briquette Press
Briquette Presses for Alternative Fuel Use
Web Sites
The
Legacy Foundation
Videos: A collection of short videos on
briquettes making can be found on the
Approvideo web site.
Articles:
Biomass
Briquetting: Technology and Practice (RWEDP, India)
Biomass Briquette Program in Malawi
Characteristics of some biomass briquettes prepared
under modest die pressures
International Workshop on Biomass Briquetting (1996)
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