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Study on Physical and Combustion Characteristics of Biocoal Briquettes produced from Agro-forest wastes
- In Myanmar, the deforestation rate will continue to increase if nothing is done to discourage the use of fuel wood and promote the use alternative energy sources. Utilization of agro-forest wasters as alternative materials for fossil fuel is of interest due to its environmental friendliness. Biocoal briquetting is the process of converting agro-forest waster into high density and energy concentrated fuel briquettes. The selection or choice of agro-forest waster briquettes for domestic and industrial collage applications depends on the fuel properties. In this work, investigations were carried out on properties of briquettes produced from sawdust and rice husk, residues with a view to finding out which of the two residues examined can be used more efficiently and rationally as fuel, A simple prototype briquetting machine was fabricated to facilitate densification of these residues into briquettes Ultimate and proximate analyses Were carried out to determine their physical and combustion characteristics of the briquettes produced and firewood charcoal available in the market. The results of this work indicated that briquettes prod used from these two residues would make good biomass fuel': and are also comparable to firewood charcoal. However, findings showed that sawdust briquette has more positive attributes of biomass fuel than rice husk briquette. It had a moderate moisture content of 7.8%, higher density of 650 kg/m3and lower relaxation ratio of 1,70. Other positive attributes of sawdust briquette over rice husk arc long ignition time of 28 seconds and slow burning rate of 4.2 g/min. It also has higher value matter of 74.3% and higher heating value of 16.98 MJ/kg compared to rice husk briquettes which are 67.1% and 15.82 MJ/kg, respectively.
Seinn Lei Aye
Kyaing Thuzar Mon
Htet Htet Naing
- Journal of the Myanmar Academy Arts & Science