Design, Fabrication and Performance Evaluation of Manually Operated Palm Oil Screw Press

E.N. Okoronkwo¹ , R.E. Nnam² , I.S.E. Nwaorgu³ , N.I. Onwuka⁴ , C.V. Arinze⁵

Section:Research Paper, Product Type: Journal-Paper
Vol.9 , Issue.2 , pp.34-40, Jun-2022

Online published on Jun 30, 2022

Copyright © E.N. Okoronkwo, R.E. Nnam, I.S.E. Nwaorgu, N.I. Onwuka, C.V. Arinze . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Palm oil extraction still remains a critical bottleneck particularly at the level of small and medium scale processors in Nigeria because the procedure involved in the extraction of palm oil is tasking, drudgery and challenging. Although modern facilities which help to mechanize the palm oil extraction or expression are now available at the medium/large scale of production, their application at the small/cottage level of production is still very much limited hence the need for an innovative technology which can help address the mechanization of palm oil extraction at the small/cottage level. In this work, a manually operated palm oil screw press was designed, fabricated with locally available engineering materials and the performance evaluation of the machine was carried out. The machine which works with the rotation of the threaded rod has a capacity of extracting palm oil from 43.1kg of already digested palm fruit pulp per batch. The major components of the machine include the standing frame (550mm), the threaded rod(580mm), the perforated cylinder of volume 0.043m3, the lock (128mm), the cross plate(250mm), the base(640mm), the supporting frame(325mm), and the oil outlet(120mm). The performance evaluation of the machine shows that the machine can extract oil from 92.40kg of digested pulp per hour. From the efficiency evaluation of the machine, 31.88% of oil was extracted with the machine. This therefore shows that indigenous technology that can solve the major drawback in the production of palm oil in Nigeria which is the use of traditional or un-mechanized method of production which makes it unattractive to young adults or young school leavers.

Key-Words / Index Term :
Design, Fabrication, Screw press, Palm oil, performance evaluation

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