ABOUT THIS BOOK:

Abstract-This study investigated the effects of melon (citrullus lanatus) seed oil and coconut (cocos nucifera) seed oil on hydrodynamic journal bearing performance regarding pressure distribution, load carrying capacity and eccentricity ratio at varying loading and speed conditions. Vegetable oil-based lubricants are credible alternatives to petroleum based lubricants, which are not environmentally friendly. The melon seed oil and coconut seed oil were extracted using the Soxhlet extraction method, and then subjected to laboratory analyses. Journal bearing test apparatus was used to carry out the hydrodynamic pressure distribution and load capacity tests. The average hydrodynamic pressures generated with melon seed oil and coconut seed oil were, respectively, 21.56% and 6.28% lower than that of the SAE20W50 oil. Load carrying capacities were 24.45% and 6.97% lower while the eccentricity ratios were 96% and 103% higher, respectively. The experimental results were numerically validated. The overall performance of melon seed oil and coconut seed oil in this research confirmed that they are excellent candidate base oil stocks that should be fully exploited.