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Research Article Open access CC BY 4.0

Evaluation of the Combustion Characteristics of Rice Husk and Coconut Shell Briquettes

A. Bam Sebastine, Abuh Michael, Ikpambese Kumaden

Journal of Engineering Research and Reports · pp. 1–9 · Published 9 Jul 2023

10.9734/jerr/2023/v25i6917

Abstract

Combustion characteristics of rice husk and coconut shell briquettes have been investigated with a view of establishing its suitability as an energy source. The husk and shell were collected and carbonized in a furnace as rice husk charcoal (RHC) and coconut shell charcoal (CSC). These were further down sized and sieved to 2.5 mm particle size. The RHC and CSC were mixed in proportions of 50:45, 60:35, 70:25, 80:15, and 90:5% by weight respectively, and 5% cassava starch used as binder for all the compositions. The briquette samples were formed by thorough mixing and compaction in a metallic mold and extruded for drying and labelled 1 A, 2 A, 3 A, 4 A and 5 A respectively. Physical and mechanical as well combustion tests were performed to confirmed the viability of the briquettes.  The results indicate that sample 1A had the highest calorific value (4886 cal/g). The other properties such as water content, ash content, density of briquettes also indicate their suitability as energy source.

Rice husk coconut shell carbonization briquettes calorific value rice husk charcoal coconut shell charcoal ash content ignition time burning time

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