Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Physical Properties of Rapeseed (II)

유채 종자의 물리적 특성(II)

  • Hong, S.J. (Dept. of Bio-Mechatronic Engineering, SungKyunKwan University) ;
  • Duc, Le Anh (Dept. of Bio-Mechatronic Engineering, SungKyunKwan University) ;
  • Han, J.W. (Dept. of Bio-Mechatronic Engineering, SungKyunKwan University) ;
  • Kim, H. (Korea Food Research Institute) ;
  • Kim, Y.H. (National Institute of Agricultural Engineering) ;
  • Keum, D.H. (Dept. of Bio-Mechatronic Engineering SungKyunKwan University)
  • Published : 2008.06.25
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Abstract

Some physical properties of rapeseed were measured at five moisture levels of 10.03, 14.91, 20.07, 25.06 and 30.12% (w.b.), which include frictional properties (coefficient of static friction, emptying and filling angle of repose) and aerodynamic properties (terminal velocity and drag coefficient). The physical properties of rapeseed were evaluated as a function of seed moisture content. In the moisture content range, the coefficients of static friction, emptying and filling angle of repose increased linearly with increase of moisture content. The maximum values of coefficients of static friction were on the acrylic surface, varied from 0.34 to 0.43; the next is on the galvanized steel, varied from 0.30 to 0.38; and the minimum were on stainless steel surface, varied from 0.27 to 0.35. Emptying and filling angle of repose varied from 26.12 to 29.62 and 23.83 to 27.05 degrees, respectively. Terminal velocity increased linearly from 3.47 to 3.91 m/s with increase of moisture content. Drag coefficient varied from 1.84 to 1.64 as the moisture content increased. The relationship between drag coefficient and moisture content were expressed by non-linear equation.

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References

  1. ASAE standards. 2004. Moisture measurement unground grain and seeds. ASAE S352.2:582-583
  2. Baryeh, E. A. 2001. Physical properties of bambara groundnuts. Journal of Food Engineering 47:321-326 https://doi.org/10.1016/S0260-8774(00)00136-9
  3. Baryeh, E. A. 2002. Physical properties of millet. Journal of Food Engineering 51:39-46 https://doi.org/10.1016/S0260-8774(01)00035-8
  4. Duc, L. A., J. W. Han, S. J. Hong, H. S. Choi, Y. H. Kim and D. H. Keum. 2008. Physical properties of rapeseed (I). J. of Biosystems Engineering 33(2):101-105. (In Korean) https://doi.org/10.5307/JBE.2008.33.2.101
  5. Dursuna, I., K. M. Tugrul and E. Dursuna. 2007. Some physical properties of sugarbeet seed. Journal of Stored Products Research 43:149-155 https://doi.org/10.1016/j.jspr.2006.03.001
  6. Guner, M. 2007. Pneumatic conveying characteristics of some agricultural seeds. Journal of Food Engineering 80(3):904-913 https://doi.org/10.1016/j.jfoodeng.2006.08.010
  7. Junior, P. C. A., P. C. Correa, F. A. C. Pinto and D. M. Queiroz. 2007. Aerodynamic properties of coffee cherries and beans. Biosystems Engineering 98:39-46 https://doi.org/10.1016/j.biosystemseng.2007.03.010
  8. Karababa, E. 2006. Physical properties of popcorn kernels. Journal of Food Engineering 72:100-107 https://doi.org/10.1016/j.jfoodeng.2004.11.028
  9. Khoshtaghaza, M. H. and R. Mehdizadeh. 2006. Aerodynamic properties of wheat kernel and straw materials. Agricultural Engineering International: the CIGR E-journal. Vol. 8
  10. Masoumi, A. A. and L. Tabil. 2003. Physical properties of Chickpea (C. arietinum) cultivars. ASAE Paper No. 036058. ASAE, St. Joseph, Mich
  11. Santalla, E. M. and R. H. Mascheroni. 2003. Physical properties of high oleic sunflower seeds. Food Science and Technology International 9(6):435-442 https://doi.org/10.1177/1082013203040756
  12. Sedat, C., M. Tamer, O. Huseyin and O. Ozden. 2005. Physical properties of rapeseed (Brassica napus oleifera L.). Journal of Food Engineering 69:61-66 https://doi.org/10.1016/j.jfoodeng.2004.07.010

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