Biodiesel is an alternative to conventional petro diesel fuel. It can be produced by vegetable oils and animal fats. In addition, it can also be produced by waste cooking oils. The main limitation of biodiesel production is that it can cause food shortage and can lead to heavy use of fertilizers and water which deplete the natural resources, soil and water. Using waste cooking oil as a raw material for biodiesel would overcome these limitations and would also avoid the problem of disposal of these waste oils. In this study, transesterification process is performed on waste cooking oil (mustard oil), to produce biodiesel as a product. Following this, biodiesel is blended with normal diesel fuel to produce blends having biodiesel concentration of 6%, 12% and 18%, hereby referred as B6, B12 and B18. These blends are tested on performance and emissions parameters at different loads on a VCR diesel engine. B12 gave the best suitable outcomes on brake thermal efficiency, specific fuel consumption and mechanical efficiency while B18 gave better volumetric efficiency. NOx, unburnt hydrocarbons, CO and CO2 emissions were the most optimal in case of B12.
Biodiesel, transesterification, VCR diesel engine
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