Publication: Effect of Process Techniques on Three Feedstocks Mix on Briquette Performance Properties
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2022-02-16
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Centre of Excellence in Sustainable Agricultural and Agro-business Management (CESAAM)
Publisher
Journal of Energy, Environmental & Chemical Engineering
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Abstract
Energy availability at domestic level is a challenge across the world and especially in Africa. Firewood is the major
source of energy for cooking for households in Kenya and there is need for a friendly sustainable environmental fuel. Carbonized
biomass materials (briquettes) are considered a substitute. This study thus evaluated effect of selected briquetting techniques on
briquettes’ performance properties. Milled charcoal dusts mixed in a ratio of 1:1:1 (Rice husk, maize cob, and sugarcane bagasse)
with molasses binder in the ratio of 6:1 was hence ready for densification and agglomeration. The Water Boiling Test was used in
determination of the briquette’s performance characteristics for various parameters. High (screw press); and low (drum
agglomerator and hand making) pressure briquetting techniques were distinctly different in ignition time (minutes), time to boil
(minutes) burning rate (g/min), specific fuel consumption (g/ml) and power output (kW) values as (4, 3, 3; 14, 12, 11: 0.8, 1.1,
1.3; 0.11, 0.13, 0.15; and 1.8, 1.4, 0.75). Diversified briquetting techniques, number and type of feedstocks are thus factors that
influence performance characteristics of briquettes in converting the agricultural and or other wastes for useful energy
application. This knowledge should enable users to make choices on techniques for optimum efficiency towards realization of
Sustainable Development Goal Number #7 on affordable and clean energy.
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Egerton University