Analyses of oil output indicators of selected bulk oilseeds under linear and non-linear compression processes

Eng. Meseret Abraham Afework, BSc

Master's thesis

Abstract:

The Master’s Thesis analysed oil output indicators under linear (uniaxial) and non-linear (screw press) compression processes. Samples of rapeseed (Brasssica napus) and camelina (Camelina sativa) were selected by comparing their extraction performance under varying compression techniques. Oil yield, oil expression efficiency, residual oil content, deformation energy, and throughput were evaluated. By measuring and comparing these indicators, the research identified the most effective approach for maximizing oil recovery with minimal residual oil in the seedcake. The non-linear compression process generally yields a higher oil output due to its ability to optimize pressure distribution throughout the pressing cycle. This advantage enhances oil yield and efficiency, making it a more effective method for industrial-scale oil extraction. The insights gained from this research contribute to the advancement of oilseed processing by identifying the ideal oil extraction parameters. These findings can serve as a foundation for improving oil expression efficiency in industrial applications. However, further studies are recommended to explore additional variables, such as the impact of different oilseed types and advanced press designs to enhance efficiency and environmental sustainability in the oil extraction process.

Keywords

Edible oilseeds, seedcake, energy output

Jazyk práce: English

Datum vytvoření / odevzdání či podání práce: 6. 4. 2025

Obhajoba závěrečné práce

• Obhajoba proběhla 19. 5. 2025
• Vedúci: doc. Ing. Abraham Kabutey, Ph.D.
• Oponent: Oldřich Dajbych, Ph.D.

Czech University of Life Sciences Prague

Faculty of Engineering

Master programme:
Technology and Environmental Engineering