EVALUATION OF A BIOMASS COMBUSTION FURNACE USING DIFFERENT KINDS OF COMBUSTION CHAMBER CASING MATERIALS

This research systematically evaluates a biomass combustion furnace, focusing on the influence of varying combustion cham­ber casing materials. The study employs con­trolled laboratory experiments to investigate the impact of different casing materials on combustion performance, thermal efficien­cy, and practical applications such as water boiling capacity. The research uses distinct materials, including clay, steel, and alumi­num, for combustion chamber casings while maintaining consistent dimensions. The cen­tral experimental apparatus, an aluminum stove, was meticulously crafted, adhering to precise measurements. Coconut shell bri­quettes served as the primary fuel source for this investigation. The results reveal intriguing dynamics in combustion behavior. Notably, the choice of combustion chamber casing material significantly affects fire tem­perature, sleeve wall temperature, thermal efficiency, and the ability to boil water. Clay emerges as a standout performer, achiev­ing high thermal efficiency (56.8 %), sub­stantial water boiling capacity (25 liters), and efficient fuel consumption (1.28 kg of burnt briquettes). However, steel casing ma­terials excel in generating the highest fire temperatures (up to 557 °C), underscoring their exceptional heat­conducting properties. Aluminum has fast temperature responses but may not retain heat like clay. The findings help optimize biomass combustion furnaces and associated applications. Material selec­tion is crucial to attaining combustion goals like efficiency, temperature generation, or practical heat. These discoveries could lead to more efficient and ecologically friendly biomass combustion systems for sustainable energy and resource useKeywords: coconut shell briquettes, cylin­drical shapes, household briquette stoves, ther­mal characteristic