Performance and exhaust emission characteristics of a CI engine fuelled with diesel-biodiesel-methane-nitromethane

Abstract

In reaction to the rising expense of fossil fuels and the rise in the number of pollutants in the environment, professionals are searching for alternative, renewable fuels in order to improve the efficiency of internal combustion engines and decrease the emissions that they create. This is being done in order to improve the efficiency of internal combustion engines and reduce the emissions that they produce. This study was conducted with the intention of determining whether or not alternative fuels, such as mixtures of biodiesel, methanol, and nitro-methane, could be able to effectively replace traditional diesel in an internal combustion engine (1200 r/min to 2100 r/min). Increasing the speed of the engine was helpful in achieving the desired goal of producing a more consistent combustion product. It is possible that the indicator thermal efficiency and economic performance might be improved by increasing both the number of rotations per minute and the number of nitromethane blends that are introduced into the cylinder. It has been shown that the nitro-methane approach has tremendous promise for reducing NOx emissions. However, higher rotations per minute proved beneficial for increasing the pressure and temperature within the cylinders. At a speed of 1500 r/min, this particular engine reached its optimal compression ratio of 18:1. The ratio of nitromethane impact on NOx emissions reached 10%, and the factor that had the most influence on smoke emission for NM3 (85.0% diesel, 10.0% biodiesel, 2.0% methanol, and 3.0% nitromethane) was the engine running condition.