DefinePK

Abstract

This study presents the experimental results on performance and emission characteristics of diesel engine with blends of rosemary oil and nano-additive (MgO). These results were run on an unmodified diesel engine. The tests were conducted with total of six blends. B15, B30, B45 are the three blends that have been tested. The other three blends are nothing but the same blends with nano-additive (MgO). The fuel are tested in Kirloskar TV-1 (4-stroke, single cylinder engine) and analysed in AVL smokemeter. Performance characteristics like brake power, thermal efficiencies etc were recorded. Emission levels of CO, CO2, HC, NOx are taken and compared. Efficiency for sample 3 (B15 with additive) was observed to be nearly 35% more than that of diesel at brake power of 2.5kW but after that the diesel curve has a steep slope whereas sample 3 has a gradual rise. Specific fuel consumption for pure diesel is low, then comes sample 3 which has a slightly lower fuel consumption at higher brake power. CO emissions for sample 3 have found to be about 10% lower than that of diesel. HC emissions for sample 4 have a great decrease of 50% when compared to pure diesel. In CO2 emissions sample 2 and in NOX emissions sample 5 had significantly good results.