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| Marey, samy Abdelgaid; Drees, Abdelfatah Mahmoud; Ibrahim, Mohamed Mahmoud; Aboegela, Mohamed Abdelgawad. |
| A low-cost Almond (Prunus dulcis) kernel extraction machine was locally designed, manufactured and evaluated. Kernel extraction by the machine was conducted by first crushing the nut, and then separating seeds from a shell. The performance of the developed machine was evaluated in terms of machine productivity, cracking efficiency, kernel breakage and specific energy requirements. The evaluation was conducted at roller speeds (ranging from 0.5 to 1 m/s), rollers clearance (ranging from 14 to 25 mm) and two different roller casing materials (rubber and metal mesh). Results revealed that the increase of the roller speed was found to increase the machine productivity. However, it caused a decrease in the kernel breakage, cracking efficiency, energy... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4147 |
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| Ghonimy, Mohamed Ibrahim; Ibrahim, Mohamed Mahmoud; Ghaly, Abdelkader; Abd El Rahman, Eid Nasr El-Din. |
| The aim of this research was to evaluate three types of commonly used hand-held olive harvesters in small olive farms (pulsed motion double head olive harvester, hook type hand-held olive harvester and pneumatic comb olive harvester) in the Kingdom of Saudi Arabia. The specific objectives were to (a) determine the values of some olive plant parameters including physical-mechanical properties of fruit-stem system, natural frequency of the olive fruit-stem system and suitable shaking stroke), (b) establish and determine the values of the evaluation criteria which included machine productivity, fruit removal percentage, fruit damage, specific consumed energy and olive harvesting cost, (c) determine the quality characteristic for each criterion, (d) assign the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Olive; Harvester; Natural Frequency; Shaking Stroke; Overall evaluation criterion. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6951 |
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