A Researchon Tribological Behaviourof Pongamia Biodiesel Blended Lubricant with Cardanol Biodiesel Blended Lubricant at Different Loads

In this world demand for bio lubricants which are easily decomposing, non-toxic and non-polluting is increasing day by day. This paper describes and compares the friction and wear characteristics of Pongamia blended lubricant with Cardanol blended lubricant by using Pin on disc wear testing Tribometer. For the preparation of blended lubricants, cardanol and pongamia based biodiesel were blended with base lubricant SAE20W40 in the ratios of 5, 10, and 20% on volume basis. The friction and wear characteristics of Cardanol and pongamia blended bio lubricants were carried out at the loads of 50N, 100N and 150N with the sliding velocity of 2.5m/s. By adding 5% and 10% pongamia biodiesel with base lubricant, less wear rate was observed. When this limit wear rate exceeds is also increasing gradually. While carrying out the wear test with Cardanol oil blended lubricant, least wear rate was observed during the addition of 5% and 20% Cardanol oil blended lubricant with base lubricant. The wear rate was increased while adding 10% of Cardanol oil blended lubricant with base lubricant. It has been concluded that CBL 5 and CBL 15 can act as an alternative lubricant at minimum and maximum load to increase mechanical efficiency at 2.5m/s sliding velocity and dependency on petroleum-based products was reduced with its contribution