PERFORMANCE EVALUATION OF CENTRAL LUZON STATE UNIVERSITY (CLSU) SUNFLOWER (Helianthus annuus L.) DEHULLER
| dc.contributor.author | Bien Anjhello S. Lim | |
| dc.date.accessioned | 2026-01-07T05:49:55Z | |
| dc.date.available | 2026-01-07T05:49:55Z | |
| dc.date.issued | 2024 | |
| dc.description.abstract | Sunflower is a widely cultivated oilseed crop in temperate and subtropical regions, including the Philippines. Producing sunflower seed products involves several processes, with dehulling being a critical post-harvest operation to obtain hull-free kernels. This study highlights the significance of the centrifugal sunflower dehuller machine, addressing design and performance challenges and outlining future research directions. performance metrics for the dehuller include dehulling capacity (input and output), dehulling efficiency, cleaning efficiency or purity, hulling recovery and noise level. Using a Box Behnken Design (BBD) with a 23-factorial seventeen (17) test runs were conducted to evaluate the machine's performance across varying dehulling clearances, RPM and feeder opening settings. The optimization process employed Response Surface Methodology (RSM) to maximize dehulling capacity, efficiency, hulling recovery and cleaning efficiency, while minimizing noise levels, ensuring high yield and quality of dehulled seeds along with a safer working environment. The optimization yielded thirty-six (36) potential solutions, with the optimal set-up achieving the highest desirability factor of 0.779. The optimal parameters were a dehulling clearance of 2.29 mm, RPM of 65, and feeder opening of 47.56mm. At these settings, the machine achieved an input dehulling capacity of 112.89 kg/h, output dehulling capacity of 21.82 kg/h dehulling efficiency of 70.62%, cleaning efficiency of 55.71%, hulling recovery of 55.72% and a noise level of 94.73 dB. These results demonstrate that precise optimization of operational parameters significantly enhances the machine's performance, producing a high yield of clean, intact sunflower seeds while maintaining acceptable noise levels. This study emphasizes the importance of optimization in improving the efficiency and effectiveness of the sunflower dehulling process. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/937 | |
| dc.language.iso | en_US | |
| dc.title | PERFORMANCE EVALUATION OF CENTRAL LUZON STATE UNIVERSITY (CLSU) SUNFLOWER (Helianthus annuus L.) DEHULLER | |
| dc.type | Thesis |