Abstract
Ethiopia’s energy consumption predominantly depends on traditional biomass. The objectives of this study were to produce fuel briquette from Mango seed and mango peel waste generated from Addis Ababa city as well as to evaluate the fuel quality of the briquettes produced.
The samples of mango waste collected and after air dried samples were carbonized using Philippine drum kiln model then the carbonized sample were crushed to powder and mixed with a (15 %) clay soil binder and converted to briquettes by using a beehive pressing briquette machine. Proximate analysis was carried out using ASTM procedures. Briquettes produced from carbonized mango seed, mango peel, and a mixture of carbonized seed and peel fixed carbon content and calorific value were 46.03 ± 0.80 %, 34.28 ± 0.74 %, 42.98 ± 0.49 %, and 5,588.33 ± 319.72 Cal/gm, 4,961.78 ± 274.77 Cal/gm, 5,473.15 ± 347.70 Cal/gm, respectively, and through conversion of estimated total amount of wet Mango residues were on average 22,638,912kg/yr. from Mango seed, Mango peel, and a mixture of carbonized seed with carbonized peel annually the city could produce about 44.670,16.490,and 66.060 MJ of energy . In addition to this, based on their calorific value and energy potential can substitute1,450.3ton,535.4ton and 2,144.8 tone of wood charcoal or 8.702 ton,3,212 ton and 12,868.8 ton of fuel wood substitution per year respectively. Because of that substitution 4,785-ton, 1,767 ton and 7,077.8ton of CO2 that release to the environment reduce due to the produced a mango seed and mango peel briquette. Mango seed and peel fuel briquettes had total CO emissions of 842 ppm (0.08%) and 923 ppm (0.09%) respectively minimize air pollution. Concluded that the fuel briquette produced from mango waste have high potential as an alternative a source of energy, helps to reduced CO2 emission by reducing the deforestation rate, reduces pollution and provides sound mango waste management option.
Keywords: Binder; Mango seed; Mango peel; Deforestation