Modeling of Linear and Non-linear Compression Processes of Sunflower Bulk Oilseeds

Abraham Kabutey, David Herak, Himsar Ambarita and Riswanti Sigalingging
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Abraham Kabutey: Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, 165 21, Prague 6 Suchdol, Czech Republic
David Herak: Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, 165 21, Prague 6 Suchdol, Czech Republic
Himsar Ambarita: Department of Mechanical Engineering, Faculty of Engineering, Universitas Sumatera Utara, Jl. Almamater Kampus USU, Medan 20155, Indonesia
Riswanti Sigalingging: Department of Agricultural Engineering, Faculty of Agriculture, Universitas Sumatera Utara, Kampus USU, Prof. A. Sofyan No. 3, Medan 20155, Indonesia

Energies, 2019, vol. 12, issue 15, 1-14

Abstract: The present study aimed at describing the experimental and theoretical force-deformation curves of sunflower bulk oilseeds at varying initial pressing heights and vessel diameters as well as determining the theoretical pressure and energy along the screw press FL 200 pressing chambers. The design of efficient oil expression systems for industry and small-scale application remains a major challenge to engineers and researchers. In attempting to solve the problem, it is important to understand the linear compression process and to transfer the knowledge to the industry involving mechanical screw presses. The universal compression testing machine at a preset load of 200 kN and a speed of 5 mm·min −1 , tangent curve model and the screw press FL 200 geometry parameters were applied. The obtained results of pressure and energy along the screw pressing chambers (1–7) ranged from 0.31 to 101.653 MPa and 12.616 to 1231.228 J. Applying the tangent model at n = 1 and n = 2, the cumulative pressure decreased with increasing vessel diameters while energy increased. The study provides useful information for the analysis of other bulk oilseeds and optimizing the processing parameters of screw press FL 200 and the design and development of new oil presses.

Keywords: sunflower bulk oilseeds; compression processes; tangent curve model; screw geometry (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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