Effects of compression speed and heat-treatment temperature on mechanical behaviour of sunflower and rape bulk oilseeds under compression loading

Yuk Ming Chui

Diplomová práce

Abstract:

Oil from the oil crops has been utilized by humans in daily life for many years. One of the most popular usages of oil crops nowadays is green energy or biodiesel production. And the most common materials to produce oil are rapeseeds and sunflower seeds. To be eco-friendly, energy consumption in the compression process of sunflower seeds and rapeseeds production should be minimized for a large amount of oil production. This study focuses on the effects of compression speed and heat treatment temperature on the mechanical behaviour of sunflower and rape bulk oilseeds under compression loading. To understand the background more clearly, a general overview of sunflower and rape-oil bearing crops was explored. Some common oil extraction methods of oil-bearing crops and optimization principles of those methods were described. Besides, some biodiesel fuel production from oil-bearing crops and their pros and cons were discussed. Moreover, the physical and mechanical properties of sunflower and rape bulk oilseed were reviewed. To study the mechanical behaviour of sunflower and rape bulk oilseeds under compression loading, response surface methodology (RSM) was employed. Three independent process variables namely compression speed, temperature and compression force were studied and optimized. A set of experimental data through the Box Behnken approach were analyzed using STATISTICA software. After carrying out the experiments, the optimum compression conditions for processing oil from sunflower seeds and rapeseeds were identified and then validated.

Keywords

Oil bearing crops, Compression process, Energy consumption, Box Behnken Design, Response Surface Methodology

Jazyk práce: angličtina

Datum vytvoření / odevzdání či podání práce: 16. 4. 2020

Obhajoba závěrečné práce

• Vedoucí: Ing. Abraham Kabutey, Ph.D.

Česká zemědělská univerzita v Praze

Technická fakulta

Magisterský studijní program / obor:
Technology and Environmental Engineering / Technology and Environmental Engineering