Development and Performance Evaluation of a Variable-Pitch Tapered-Shaft Screw Press for Palm Oil Extraction

Abstract

Palm fruit oil extraction is a difficult task to undertake. Screw press technology offers a solution to its extraction. However, most screw press available requires high power input for effective operation, thus affecting cost. Therefore, there is a need for improvement in order to limit cost and increase extraction efficiency. This work focuses on development of a variable-pitch tapered-shaft (VATS)screw pressfor enhancing palm fruit oil extraction efficiency. The VATS screw press machine consists of three main components including the hopper, the steamer, and the pressing unit, and was operated at temperature of 90, 110 and 130°C, shaft speed of 30, 45, and 60 rpm and heating time of 10, 15, 20 minutes. The performance evaluation carried on the machine includes oil yield, extraction efficiency and extraction loss. The results showed that the average oil yield, extraction efficiency and extraction loss were 83.72, 97.73 and 2.37% respectively. Whereas, a higher machine efficiency of 94.45% was obtained at a temperature of 130°C, shaft speed of 60 rpm, and heating time of 15 minutes. It is hoped that the information on the design concept for VATS screw press for palm fruit oil extraction will be useful for the vegetable oil industry.

Keywords

• Extraction
• Palm Fruit Oil
• Screw Press
• Efficiency
• Oil Industry

References

1. Adetola, O. A., Olajide, J. O., & Olalusi, A. P. (2014). Development of a Screw Press for Palm Oil Extraction. International Journal of Scientific & Engineering Research, 5(7), 1416-1422.
2. Alam, M., Nandi, R., & Kabir, E. (2020). Development of a Manually Operated Palm Oil Extraction Machine. Agricultural Engineering International: CIGR Journal, 22(1), 213-218.
3. Amiolemhen, P. A., & Eseigbe, J. A. (2019). Design and Fabrication of a Palm Kernel Oil Expeller Machine. International Journal of Engineering and Technology, 67(6), 39-46. doi:10.14445/22315381/IJETT-V67I6P208
4. Aremu, A. K., & Ogunlade C. A. (2016). Effect of Operating Parameters on Mechanical Oil Expression from African Oil Bean Seed. Global Journal of Science Frontier Research: Agriculture and Veterinary, 16(1), 19-26.
5. Atoyan, S. V., Generalov, M. B., & Trutnev, N. S. (2000). Input power required for compaction materials in screw presses. Journal of Chemical and Petroleum Engineering, 36(3), 31-32. doi:10.1007/BF02463419
6. Chukwunwike, E., & Ojimelukwe, P. (2021). Processing Methods and Storage Period Affect the Quality of Palm Oil. Carpathian Journal of Food Science and Technology, 13(4), 192-210. doi:10.34302/crpjfst/2021.13.4.15
7. Firdaus, M., Salleh, S. M., Nawi, I., Ngali, Z., Siswanto, W. A., & Yusup, E. M. (2017). Preliminary Design on Screw Press Model of Palm Oil Extraction Machine. IOP Conference Series: Materials Science and Engineering, 165(1), 012029. doi:10.1088/1757-899X/165/1/012029
8. Muhammad, I. B., Husaini, Nurdin, A., Rauzatul, A., & Teuku, E. P. (2021). Failure Analysis of the Short Drive Shaft in a Screw Press Machine. Key Engineering Materials, 892, 74-80. doi:10.4028/www.scientific.net/KEM.892.74

9. Ndirika, V. I. O., & Onwualu, A. P. (2016). Design principles for post-harvest machines, Naphtali Print, Nigeria 81 (2016), 2 ed., 58/200-RAE.
10. Okafor, B. E. (2015). Development of Palm Oil Extraction System. International Journal of Engineering and Technology, 5(2), 68-75.
11. Olayanju, T. M. A., Akinoso, R., & Oresanya, M. O. (2006). Effect of Wormshaft Speed, Moisture Content and Variety on Oil Recovery from Expelled Beniseed. Agricultural Engineering International: The CIGR Ejournal., 8, FP06 008.
12. Savoire, R., Lanoisellé, J-L., & Vorobiev, E. (2013). Mechanical Continuous Oil Expression from Oilseeds: A Review. Food and Bioprocess Technology, 6(1), 1-16. doi:10.1007/s11947-012-0947-x
13. Tagoe, S. M. A., Dickinson, M. J., &Apetorgbor, M. M. (2012). Factors influencing quality of palm oil produced at the cottage industry level in Ghana. International Food Research Journal, 19(1), 271-278.