Design, fabrication, and performance evaluation of unshelled castor bean (Ricinus communis L.) Sorter [manuscript]
| dc.contributor.author | Ana May P. Doctolera | |
| dc.date.accessioned | 2025-09-29T02:58:57Z | |
| dc.date.available | 2025-09-29T02:58:57Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | The study was carried out to design, fabricate, and evaluate the performance of unshelled Castor bean sorter in classifying Castor pods by size. The specific goal of this study was to determine the appropriate oscillation speed to facilitate its sorting performance and perform simple cost analysis on the device. The unshelled Castor bean sorter was designed and drawn based on the physical characteristics of the Castor pods. The machine was fabricated based on design plans and specifications. The components of the sorter include the hopper, sorting unit, receiving funnel, oscillation assembly, power transmission system, and frame . The sorting unit was designed with slatted stainless steel (6.35 mm diameter, 40 cm long) by which the clearance varies from 15 mm, 20mm, and 25mm. These gaps were sized up based on the actual sizes of Castor pods. The diameter of Castor pods as testing samples were 16 mm to 20 mm, 21 to 25 mm, and 26 mm and above - small, medium, and large. Three different sorting speeds of the shafts (430 rpm, 358 rpm, and 307 rpm) were evaluated. Five (5) kilograms of mixed Castor pods were used in the treatment at three (3) replications. Results showed that the appropriate sorting speed was at 358 rpm giving a system efficiency of 73.49% in sorting, and throughput capacity of 400.53 kg/hr. Likewise, the amount of damaged pods was only 1%, the lowest among the three treatments. The overall cost of the device was Php19,338.20 with a break-even weight of 16,115.17 kg/yr of Castor pods at a custom rate of Php1.2kg and a breakeven operational cost of Php8,379.87/yr. Equivalent annual fixed cost of the device was Php21,310.70 and variable cost of Php71.84/hr. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/594 | |
| dc.language.iso | en | |
| dc.relation.supervisor | MARLON T. DELOS SANTOS, M.Sc. | |
| dc.title | Design, fabrication, and performance evaluation of unshelled castor bean (Ricinus communis L.) Sorter [manuscript] | |
| dc.type | Thesis |