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- Title
Determining of some physical and mechanical properties for designing tomato fruits cutting machine.
- Authors
Mahmoud, Wael Abou El-Magd; Mahmoud, Ragab Kassem; Eissa, Ahmed Salah
- Abstract
The present study aimed to determine some physical and mechanical properties of Nesma, Masa and 2020 tomato cultivars that are considered as a database for tomato cutting machine designing and development. The physical properties were studied the axial dimensions, average diameter, arithmetic diameter, geometric diameter, mass, density, surface area, packing coefficient, sphericity, and aspect ratio of the tomato fruits. The mechanical properties were studied the static coefficient of friction and the firmness. The results showed that the average value of axial dimensions, the high (H), largest diameter (Dmax.), and lowest diameter (Dmin.) of samples was 73.98, 69.26 and 61.03, 63.28, 59.89 and 53.32, and 70.99, 53.86 and 49.60 mm for cultivars of tomato fruits Nesma, Masa and 2020, respectively. The average value of arithmetic diameter, Geometric diameter of three cultivars of tomato were 69.26, 58.76, 58.11 and 67.69, 58.52, 57.33 mm, respectively. And the mean value of mass and density were 181.74, 120.14, 109.96, and 0.991, 0.991, 0.972 g cm-3 respectively. While the mean value of the surface area, packing coefficient, sphericity, and aspect ratio were 144.61, 107.93, 103.65 cm2, 0.533, 0.572, 0.562., 92.13%, 92.67%, 81.11%, and 94.48%, 94.99%, 76.39 % respectively for three. The lowest values of static coefficient of friction were 0.427, 0.266, 0.242 with plywood while the highest value was 0.566, 0.310, 0.388 with rubber of three cultivars respectively. And means values of the firmness were 4.70, 5.95, and 4.9 N cm-2 for three cultivars, respectively. The results obtained may be beneficial to developers and manufacturers of harvesting, transporting, handling, packing, sorting, grading, and cutting tomatoes for drying purposes.
- Subjects
CUTTING machines; FRUIT; STATIC friction; TOMATOES; HARVESTING; MACHINE design
- Publication
Agricultural Engineering International: CIGR Journal, 2022, Vol 24, Issue 4, p131
- ISSN
1682-1130
- Publication type
Article