فهرست مقالات Green husk

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  1 - The Investigation and Evaluation of Some Important Mechanical Tests for the Consumed Varieties of Persian Walnut
  A.R. Makarichian G.R. Chegini
  10.22034/jon.2014.515685
  Removing the green husk and drying walnut are one of the most important steps in post-harvest processing of walnut. Therefore, it is need to precisely identify a walnut’s shell. Physical and mechanical properties of shell in the four Persian walnut cultivars/genot چکیده کامل

  Removing the green husk and drying walnut are one of the most important steps in post-harvest processing of walnut. Therefore, it is need to precisely identify a walnut’s shell. Physical and mechanical properties of shell in the four Persian walnut cultivars/genotypes were studied. This study investigated the mechanical properties of a walnut’s husk and calculated the required energy in the process of shearing, penetrating and bruising for four walnut cultivars/genotypes (K72, Z67, Pedro, Serr). This was done by a texture analyzer instrument. Required energy to perform each of these tests were given in terms of the maximum and minimum values. The averaged results were so that the maximum amount of Krammer shear test belonged to K72 variety and the minimum of that belonged to Pedro variety. Penetration’s test data also indicated that the maximum amount in four available varieties was Pedro and the minimum value was suitable for Z76. Also, in the bruising test, Serr variety had the maximum value of required energy and Z76 variety had the minimum energy requirement. پرونده مقاله
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  2 - Evaluation of a Walnut Huller
  G.R. Chegini A.R. Makarichian
  10.22034/jon.2015.515645
  Walnut is one of the high yielding crops in horticultural production, and establishment of walnut orchards is growing. Yet despite Iran’s being the second largest producer of walnuts in the world, this country does not play a significant role in walnut export. Thi چکیده کامل

  Walnut is one of the high yielding crops in horticultural production, and establishment of walnut orchards is growing. Yet despite Iran’s being the second largest producer of walnuts in the world, this country does not play a significant role in walnut export. This gap is most affected by the need to mechanize the harvesting process. This case is more understandable when can construct a new device with greater efficiency in comparison of the existing mechanical systems. In this article, a walnut huller built on the Abouraihan campus of the University of Tehran is evaluated, with Rotational speed, time and brush distance being optimized to make the best quality of hulling process. The results indicate that increasing the rotational speed, increases the amount of walnuts hulled but that the percentage of damaged nuts also increases. If, at a constant rotational speed, the distance between abrasive brushes is reduced, the amounts of nuts hulled and damaged are raised but the degree of hulling is greater than degree of injury. Also, if the distance between abrasive brushes and the rotational speed are decreased, the peeling rate is increased while the damage rate is decreased. پرونده مقاله