Estimation of Energy Requirement of Jatropha Curcas L. Seedcake Briquettes under Compression Loading

Tatiana Ivanova, Abraham Kabutey, David Herák and Cimen Demirel
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Tatiana Ivanova: Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague 16521, Czech Republic
Abraham Kabutey: Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Prague 16521, Czech Republic
David Herák: Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Prague 16521, Czech Republic
Cimen Demirel: Department of Agricultural Machinery, Faculty of Agriculture, Ondokuz Mayis University, Samsun 55139, Turkey

Energies, 2018, vol. 11, issue 8, 1-11

Abstract: The energy requirement of Jatropha curcas L. seedcake of different dimensions (4.5, 5.6, 6.7, 8 and 10 mm) for briquette compaction was investigated under compression loading (100, 200, 300 and 400 kN) using the universal compression-testing machine. The parameters measured and/or calculated were the deformation, thickness, numerical energy and theoretical energy. The statistical analysis results show that compression forces had a significant effect ( P -value < 0.05) on the amounts of deformation and thickness, while that of the dimensions of the sample did not. The increase in compression forces increased the numerical energy while that of samples dimensions caused a decrease. Using the tangent curve mathematical model; the force coefficient of mechanical behaviour (kN), the deformation coefficient of mechanical behaviour and the fitting curve function exponent were determined for describing the experimental dependency between the force and deformation curves as well as the numerical energies of densified jatropha seedcake briquettes.

Keywords: jatropha seedcake; briquettes compaction; energy consumption; force-deformation curve; economic value (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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