Assessment on Tribological Characteristics of Waste Ayurvedic Oil Biodiesel Blends using High-Frequency Reciprocating Rig Tribometer

In general the components of the engine create more wear and friction in metal to metal contact surface, when the engine runs with petroleum based fossil fuel. This may damage the mating parts especially cylinder liner and piston ring, this may lead engine life reduction, increase of service cost. The biodiesel will give good lubrication property than the petroleum based fossil fuels. Basically, the researchers are mainly focusing on waste management system and its processes in the way of reduction in the virgin feed stocks used as a alternate fuel. This study dealt to investigate the tribological property of Waste Ayurvedic Oil (WAO) biodiesel blends by comparing with diesel fuel to improve fuel lubricity by using High Frequency Reciprocating Test Rig. The experimental investigation was conducted with load: 10N, frequency: 50Hz, stroke length: 15mm, time: 75min, temperature: 60°C. From the test results it is concluded that the range of blending of biodiesel from 10%, 15% and 20% of WAO with diesel fuel will results remarkable amount of improvement in the lubricity. Coefficient of friction and wear has been decreased with the increases percentages of biodiesel in blends. The WAO20 gives better reduction values in terms of co-efficient of friction, wear depth and frictional force than other WAO blended fuel and diesel fuel. The tested surfaces of cylinder liner were investigated using Scanning Electron Microscope (SEM) and atomic force microscopic analysis (AFM). The image shows a better impact and less wear scars for the WAO blended fuels than diesel fuel.