Determination of Combustion Efficiency and Compressive Stress of Cotton Stalk Charcoal and Agricultural Wastes

Bala Adamu Thliza, I. I. Nkafamiya, P. M. Dass, Edmond Moses


Investigation on the burning efficiency and compressive stress properties of cotton stalk charcoal and agricultural wastes was carried out on nine sets of briquettes from three different source of agricultural wastes. Cassava starch was used as binding agent, and calcium hydroxide Ca (OH)2 as desulphurizer. By the use of compressive machine model EL-31-34010 compressive strength of the briquettes was determined as 155.9, 113.5, 114.5, 46.7, 97.6, 89.1, 97.6, 89.1, and 113.5 KN/m2 for Cotton stalk charcoals, millet chaffs, and rice husks of Biu, Nganzai, and Zabarmari in Borno state labelled as:A1, B1, C1, A2, B2, C2, and A3, B3, C3  briquettes respectively. A comparative water boiling tests of the briquettes against firewood was carried out. A1 boiled 5litre of water in 25 minutes, C1 in 30 minutes,, B1,C3 in 35 minutes, B2,A3 in 40 minutes, C2, B3 in 45 minutes, A2 in 50 minutes, while firewood boiled the same volume of water in 60 minutes. These results revealed that such briquettes were of appreciable strength that will not crumble during combustion, and indicates their superiority over firewood in terms of combustion, quality in handling and transportation.


Millet Chaff, Rice Husk Cotton Stalk Charcoal, Briquette

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