Abstract
This paper presents a study on the effect of the mixed volume fraction of Jatropha curcas Oil (JCO) and Olea europea or extra virgin olive oil (EVOO) on the physical properties of the oil, especially viscosity, density and water content. This study also presents the mechanical properties examination result, especially its effect on the wear rate of the pin on disc tribometer results on ST 41 steel specimens, using optical microscopy. The independent variables used were variations of the oil mixture: 0, 20, 40, 60, 80 and 100% EVOO. With the increase in the percentage of the EVOO mixture in JCO, the density decreases. The result of water content in a higher percentage of JCO, the higher the water content value of 0.1217%. Pure JCO has the higher viscosity value of 1.9084 m2/s. The higher the percentage of JCO, the lower the wear rate value obtained. In the tribometer test, the pin on disk mixture of pure JCO has the lower wear value of 5.09 m2/s.
Highlights
Jatropha curcas Linn oil (JCO) has a high percentage of free fatid acid (FFA) so that it can be produced to make bio lubricants, it was found that the bio lubricant produced is comparable to the ISO VG-46 commercial standards for light and industrial gears applications and other plant based bio lubricant [2]
When JCO mixed with the potential of carrier oil, it gave the result that extra virgin olive oil (EVOO) and SFO have the potential to be used as carrier oil in the pre-treatment process of JCO as lubricant
This allows Jatropha oil which includes vegetable oil to be used as an alternative to basic lubricants, as well as being used as bioethanol and a diesel fuel capable of providing specific fuel consumption figures [17] higher than that given by standard bio solar [18]
Summary
Bio lubricant is mainly made from vegetable oils such as sunflower, coconut, Jatropha, rapeseed, and palm, while fuel oil is acceptable for biolubricant production. Jatropha curcas Linn oil (JCO) has a high percentage of FFA so that it can be produced to make bio lubricants, it was found that the bio lubricant produced is comparable to the ISO VG-46 commercial standards for light and industrial gears applications and other plant based bio lubricant [2]. The physicochemical properties and better flash point and viscosity value of JCO oil were found to be suitable properties for coolant-lubricant applications [5]. It was applied on steel ST41 with the ratio of the mixture of Jatropha Curcas Oil (JCO) with mineral lubricants, namely 90:10, 80:20, and 70:30. When JCO mixed with the potential of carrier oil, it gave the result that EVOO (extra virgin olive oil) and SFO (sunflower oil) have the potential to be used as carrier oil in the pre-treatment process of JCO as lubricant
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