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Mechanical Properties for Some Egyptian Varieties of Olive Fruits and Their Relation to
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Abstract: The aim of the present investigation is to determine the mechanical properties for five different varieties of olive fruits that represents the two main classes of olive oil production, namely: (Shimlaly and Cronaki, as oil production varieties), and (Watiken, Picual, and Manzanillo, as double purpose varieties) and their relation to design hummer mills.
Mechanical properties for the investigated varieties of olive fruits were repose angle, coefficient of friction at six different surfaces (stainless steel, galvanized, metal, fiber, wood, and rubber), fruit hardness, pit shear force, pit shear stress.
Statistical analyses carried out to express the significant variation among varieties and the deviation of the measured values around its average. The results showed that there are highly significant different among the investigated varieties.
The obtained results showed that the minimum and maximum values for repose angle, coefficient of static friction, fruit hardness, pit shear force, and pit shear stress were ranged from (32.70 to 38.45 degree), ( 0.338 – 0.467), (0.40 – 6.70, N), (203.90 – 929.30, N), and ( 9.55 – 16.383, N/mm2 ), respectively.
The recommended design parameters of hummer mill such as mass of hummers and peripheral speed of hummer were presented based on the obtained results.
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| Publication year |
2005
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| Organization Name |
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| Department |
Biological engineering
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| Author(s) from ARC |
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| External authors (outside ARC) |
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AGROVOC
TERMS |
Olives.
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| Publication Type |
Journal
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