Physical and mechanical characteristics of grain and seeds
Bozhidar Kolev, Miroslav Mihaylov
Abstract: When designing and manufacturing machines and installations for processing, transporting and storing grain and seeds, it is necessary to know some of their basic physical and mechanical characteristics. They are also necessary for the correct selection of the operating modes of the facilities in the grain warehouses.
In this paper, an engineering and technical classification of the mass-grown cereals, legumes and oilseed crops in Bulgaria is presented. For the most used varieties and hybrids, density of grains (seeds), hectoliter mass, angle of natural slope, and angle of friction on smooth materials are determined.
Keywords: angle of natural slope; density; dimensions; friction; grain; hectoliter mass; roughness; seeds; shape
Citation: Kolev, B. & Mihaylov, M. (2024). Physical and mechanical characteristics of grain and seeds. Bulg. J. Agric. Sci., 30(1), 96–100.
| References: (click to open/close) | Altuntas, E. & Demirtola, H. (2007). Effect of moisture content on physical properties of some grain legume seeds. New Zealand Journal of Crop and Horticultural Science, 35, 423–433.
Davies, R. M. & El-Okene, A. M. (2009). Moisture-dependent physical properties of soybeans. International Agrophysics, 23, 299–303.
EN ISO 24333:2010. Cereals and cereal products.
ISO 7971-1:2009. Cereals — Determination of Bulk Density, Called Mass Per Hectoliter.
Izli, N., Unal, H. & Sincik, M. (2009). Physical and mechanical properties of rapeseed at different moisture content. International Agrophysics, 23, 137–145.
Jouki, M. & Khazaaei, N. (2012). Some physical properties of rice seed (Oriza sativa). Research Journal of Applied Sciences, Engineering and Technology, 4(13), 1846–1849.
Kalkan, F. & Kara, M. (2011). Handling, frictional and technological properties of wheat as affected by moisture content and cultivar. Powder Technology, 213, 116–122.
Kara, M., Bastaban, S., Ozturk, I., Kalkan, F. & Yildiz, C. (2012). Moisture-dependent frictional and aerodynamic properties of safflower seeds. International Agrophysics, 26, 203–205.
Kolev, B. (2005). Study of the Threshing Process of Small-Seed Dry Fruit Vegetable Crops. Doctoral dissertation, Ruse University, Ruse (Bg).
Mitkov, A. (2011). Theory of Experiment. Ruse, Academic Publishing House of Ruse University, Ruse (Bg), 228.
Mitkov, A. & Minkov, D. (1993). Statistical Methods for the Study and Optimization of Agricultural Machinery. Part 2, Zemizdat, Sofia (Bg), 368.
Riyahi, R., Rafiee, S., Dalvand, M. J. & Keyhani, A. (2011). Some physical characteristics of pomegranate, seeds and arios. Journal of Agricultural Technology, 7(6), 1523–1537.
Sharobeem, Y. F. (2007). Apparent dynamic friction coefficients for grain crops. Misr. Journal of Agricultural Engineering, 24(3), 557–574.
Sologubik, C. A., Campanone, L. A., Pagano, A. M. & Gely, M. C. (2013). Effect of moisture content on some physical properties of barley. Industrial Crops and Products, 43, 762–767.
Tarighi, J., Mahmondi, A. & Rad, M. K. (2011). Moisture-dependent engineering properties of sunflower (var. Armaviriski). Australian Journal of Agricultural Engineering, 2(2), 40–44.
Triola, M. F. & Franklin, L. A. (1994). Business Statistics. Addison-Wesley Publishing Company, 823.
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| Date published: 2024-02-26
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