Mechanical behaviour of selected bulk oilseeds under compression loading

1st Nommensen International Conference on Technology and Engineering

Mizera, C.^1 ; Herák, D.^1 ; Hrab, P.^2 ; Ale, Z.^3 ; Pavl, J.^3

Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic^1

Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Czech Republic^2

Department for Quality and Dependability of Machines, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, Prague

16500, Czech Republic^3

关键词: Compression loading;    Compression speed;    Force deformation;    Jatropha curcas;    Mechanical behaviour;    Modern agricultures;    Specific energy;    Water concentrations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/237/1/012009/pdf
DOI  :  10.1088/1757-899X/237/1/012009

来源: IOP

【 摘 要 】

Pressing of vegetable oils plays an important role in modern agriculture. This study was focused on the linear pressing of soybean seeds (Glycine max L.), Jatropha seeds (Jatropha curcas L.) and palm kernel (Elaeisguineensis). For pressing test the compressive device (ZDM, model 50, Germany) was used. The maximum pressing force of 100 kN with a compression speed of 1 mm s-1was used to record the force-deformation characteristics. The pressing vessel with diameter 60 mm and initial height of seeds 80 mm were used. The specific energy per gram of oil of soybean, palm kernel and Jatropha was 158.92 ± 7.21, 128.78 ± 8.36 and 68.26 ± 5.94 J.goil-1, respectively. The oil content of soybean, palm kernel and Jatropha was 20.4 ± 1.23, 44.7 ± 2.27 and 34.2 ± 1.75 %, respectively. Water concentration, dynamic and kinematic viscosity of obtained oils was also determined.