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Effects of Additives and Briquetting on the Calorific Values of Cassava Peels using Response Surface Methodology

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2015 ASABE Annual International Meeting  152186792.(doi:10.13031/aim.20152186792)
Authors:   UKACHI JULIUS ETOAMAIHE
Keywords:   Briquets,cassava,peels,calorific,response,surface

Abstract. 30gm of ground cassava peels were mixed with three different weights of sawdust and slurry oil (5,10,and 15gm) respectively, dried and compacted to three bulk density levels of 1.86,2.0,and 2.14g/ml with a briquetting machine. Calorific values of the samples were determined using a bomb calorimeter. (Model XRY-1A ).The experimental design used was Response Surface Methodology, exploring the effects of the three levels of the three factors of quantity of sawdust, slurry oil and compaction density on the response : calorific values of the samples. Results showed that only the linear effects of the three factors influenced the calorific values significantly (P≤0.05). The variables accounted for 85.4% for the variation of the response. The quadratic and interactive terms were not significant. The highest calorific value obtained was 29.6MJ/kg with the highest values of the quantities of sawdust and slurry oil.

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