Combustion Characteristics of High density Briquette produced from Sawdust Admixture and Performance in Briquette Stove

Combustion characteristics of high-density briquettes produced from sawdust admixture at three moisture
contents of 12%, 10%, and 8% using screw press extruder was investigated in this work. The briquettes were
burnt in free air and developed briquette stove and the combustion characteristics data collected and
analyzed. The burn characteristics investigated include ignition time, total burning time, mass reduction,
normalized burn rate, the effects of density on briquette characteristics, and stove performance. The results
indicated that briquettes’ self-ignition time in open air and stove was slow, however, burns with a steady
flame. High density of the briquette was responsible for slow flame propagation resulting in a longer time to
burn out while lower density briquettes reach the burning phase faster than higher-density briquettes. The
normalized burn rate increases with an increase in briquette density. The stove performance characteristics
most depend on the quality of fuel material. There is an inverse relationship between specific fuel combustion
and thermal efficiency of the stove. The specific fuel consumption increases with decrease in moisture
content. From these results, the higher the briquettes particle moisture, the higher the specific fuel
combustion and the lower the stove thermal efficiency and vice versa.

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The authors declare no conflict of interest.

Not applicable

The datasets used in this study are openly available at [repository link] and the source code is available on GitHub at [GitHub link].

This work did not receive any external funding.