Design And Fabrication Of A Groundnut Oil Expelling Machine
Journal Title: American journal of Engineering Research - Year 2018, Vol 7, Issue 9
Abstract
A misconception exist between groundnut oil and other vegetable oil used in Nigeria because of the inefficient processes of producing groundnut oil in commercial quantity. This work, design and fabrication of an automated groundnut oil extractor was aimed to produce pure groundnut oil which would be better than the common vegetable oil (refined,blenched and deodorized palm oil)due to its natural process of extraction this machine this machine designed to the power a by 075kw electric motor with 1400 rpm and 50Hz single phase.The desired crushing effect at low power input would be achieved by the incorporation of a gear reduction system of 1:10. The procedures employed include the design stage, construction and testing. The machine components are: the electric motor, expellant unit, drains collector, belt, driving and driven pulleys, and the hopper. The expelling unit consists of a screw expellant shaft with expellant barrel. The maximum crushing stress of the groundnut was determined experimentally as 23.1KN\m 2.A heater of 1500W was used to preheat the groundnut before crushing. The groundnut was heated for 15mins which resulted to the production of 0.23kg quantity of oilwith improved quality. When heated for 10mins the quantity produced was 0.019kg which contained some impurities. The result showed that at 15mins preheating of the groundnut the quantity and quality of oil produced were better than the one produced when heated for 10mins. Therefore, the rate of oil extraction was effective and efficient at 15mins heating time. At a regulated heater temperature of 100oC the quality of the oil and groundnut cake was pleasant and edible. Based on the efficiency and the quality of the oil produced, this machine was recommended suitable for the production of groundnut oil for commercial use.
Authors and Affiliations
Engr. Dr. I. Nnanna,, Okeahialam, Solomon I. , Okoro Humphrey O.
Keywords
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