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Development of a Model to Predict the Shear Force of a Horizontal Mechanical Digester

Received: 3 October 2014     Accepted: 7 November 2014     Published: 20 November 2014
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Abstract

A model to predict the shearing/crushing force of an existing horizontal mechanical digester used for pulverization/digestion or maceration of date palm fruit was developed in the study. The model accurately predicted the shearing force used in digestion of fruit with model simulation done using Matlab 7.9 (R2009b). The results obtained showed a linear relationship between shearing force and angular velocity of implements/beater arms which are components of the digester that did the shearing of fruit mesocarp. It was also observed from results obtained that the higher the magnitude of angular velocity of shearing implement the higher the magnitude of shearing force of the digester. An angular velocity of 15.71 rads-1 yielded a shear force of 400.00 kN with an angular velocity of 34.56 rads-1 yielding a shear force of 880.00 kN. It was reported by the literary world that high magnitude of shear force is more efficient in pulverization process than shear force of low magnitude.

Published in International Journal of Science, Technology and Society (Volume 2, Issue 6)
DOI 10.11648/j.ijsts.20140206.12
Page(s) 174-178
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Model, Force, Horizontal Mechanical Digester, Pulverization, Fruit Mesocarp, Linear, Angular Velocity, Efficient

References
[1] Corley, R. H. V. and Tinker, P. B. (2003): The oil palm. World Agricultural Series. Published by Blackwell science Ltd., pp 454 - 457.
[2] Serpil, S. and Servet, G. S. (2006): Physical properties of foods. Springer, pp 39-46.
[3] Badmus, G. A. (1981): The horizontal digester-design, fabrication and testing. Proceedings of Nigerian society of agricultural engineers, pp 137-154.
[4] Ilechie, C. O. and Omoti, U. (2003): Small-scale oil palm fruit processing in Nigeria. Journal of palms and oil seeds. 15: pp 66-73.
[5] Hannah, J and Stephens, R. C. (1973): Mechanics of machines, elementary theory and examples, S.I units, third edition. pp 108-134.
[6] Khurmi, R. S. and Gupta, J. K. (2010): A textbook of machine design. Eurasia publishing house (PVT.) Ltd., New Delhi, pp 53-86, pp 120-180, pp 181-223 and pp 509-557.
[7] Alan, J. (2002): Advanced engineering mathematics, Harcourt/academic press, pp 242-250, 934-942.
[8] Chan Man Fong, C. F., De Kee, D. and Kaloni, P. N. (2003):Advanced mathematics for engineers and science, World scientific publishing company, pp 402-420.
[9] Stroud, K. A. and Dexter, J. B. (2003): Advanced engineering mathematics, 4th edition, Palgrave Macmillan, pp 414-419.
[10] Mohsenin, N. N. (1978): Physical properties of plant and animal materials. Structure, physical characteristics and mechanical properties. Gordon and Beach science publishers. pp 558-593.
[11] Kayode, olakunle and Koya, Olufemi A. (2013): Modelling the comminution energy requirements of two hard nut shells by hammer milling. International journal of research in engineering and technology, vol., 2, no., 5
[12] Petre I. Miu, Alvin R. Woma, Igathinathane Cannayen, Shahab Sokhansanj (2006): Analysis of biomass comminution and separation processes in rotary equipment-a review. American Society of Agricultural and Biological Engineers, 2006 annual meeting, paper no.066169.
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  • APA Style

    Sunday Reagan Ogblechi, Moses Toye Ige. (2014). Development of a Model to Predict the Shear Force of a Horizontal Mechanical Digester. International Journal of Science, Technology and Society, 2(6), 174-178. https://doi.org/10.11648/j.ijsts.20140206.12

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    ACS Style

    Sunday Reagan Ogblechi; Moses Toye Ige. Development of a Model to Predict the Shear Force of a Horizontal Mechanical Digester. Int. J. Sci. Technol. Soc. 2014, 2(6), 174-178. doi: 10.11648/j.ijsts.20140206.12

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    AMA Style

    Sunday Reagan Ogblechi, Moses Toye Ige. Development of a Model to Predict the Shear Force of a Horizontal Mechanical Digester. Int J Sci Technol Soc. 2014;2(6):174-178. doi: 10.11648/j.ijsts.20140206.12

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  • @article{10.11648/j.ijsts.20140206.12,
      author = {Sunday Reagan Ogblechi and Moses Toye Ige},
      title = {Development of a Model to Predict the Shear Force of a Horizontal Mechanical Digester},
      journal = {International Journal of Science, Technology and Society},
      volume = {2},
      number = {6},
      pages = {174-178},
      doi = {10.11648/j.ijsts.20140206.12},
      url = {https://doi.org/10.11648/j.ijsts.20140206.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20140206.12},
      abstract = {A model to predict the shearing/crushing force of an existing horizontal mechanical digester used for pulverization/digestion or maceration of date palm fruit was developed in the study. The model accurately predicted the shearing force used in digestion of fruit with model simulation done using Matlab 7.9 (R2009b). The results obtained showed a linear relationship between shearing force and angular velocity of implements/beater arms which are components of the digester that did the shearing of fruit mesocarp. It was also observed from results obtained that the higher the magnitude of angular velocity of shearing implement the higher the magnitude of shearing force of the digester. An angular velocity of 15.71 rads-1 yielded a shear force of 400.00 kN with an angular velocity of 34.56 rads-1 yielding a shear force of 880.00 kN. It was reported by the literary world that high magnitude of shear force is more efficient in pulverization process than shear force of low magnitude.},
     year = {2014}
    }
    

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    T1  - Development of a Model to Predict the Shear Force of a Horizontal Mechanical Digester
    AU  - Sunday Reagan Ogblechi
    AU  - Moses Toye Ige
    Y1  - 2014/11/20
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    DO  - 10.11648/j.ijsts.20140206.12
    T2  - International Journal of Science, Technology and Society
    JF  - International Journal of Science, Technology and Society
    JO  - International Journal of Science, Technology and Society
    SP  - 174
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    PB  - Science Publishing Group
    SN  - 2330-7420
    UR  - https://doi.org/10.11648/j.ijsts.20140206.12
    AB  - A model to predict the shearing/crushing force of an existing horizontal mechanical digester used for pulverization/digestion or maceration of date palm fruit was developed in the study. The model accurately predicted the shearing force used in digestion of fruit with model simulation done using Matlab 7.9 (R2009b). The results obtained showed a linear relationship between shearing force and angular velocity of implements/beater arms which are components of the digester that did the shearing of fruit mesocarp. It was also observed from results obtained that the higher the magnitude of angular velocity of shearing implement the higher the magnitude of shearing force of the digester. An angular velocity of 15.71 rads-1 yielded a shear force of 400.00 kN with an angular velocity of 34.56 rads-1 yielding a shear force of 880.00 kN. It was reported by the literary world that high magnitude of shear force is more efficient in pulverization process than shear force of low magnitude.
    VL  - 2
    IS  - 6
    ER  - 

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Author Information
  • Nigerian Institute for Oil Palm Research (NIFOR), Agricultural Engineering Research Division, P. M. B 1030, Benin City, Edo State, Nigeria

  • Obafemi Awolowo University, Department of Agricultural & Environmental Engineering, Faculty of Technology, Ile – Ife, Osun State, Nigeria

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