Parametric Optimization of NOx emissions Using Taguchi Method for C.I Engine fuel with Plastic Pyrolysis Oil

Fossil fuel shortage and severe environmental problems have attracted great attention on the exploitation of clean renewable energies. Researchers are continuously finding best alternative solution, which gives the best performance and fuel characteristics. The objective of the study is to optimize the parameters such as plastic pyrolysis oil diesel blend %, injection pressure and applied load of the single cylinder diesel engine through the Taguchi method. This paper investigated the emission characteristics of various blends of plastic pyrolysis oil with diesel on a Single cylinder four stroke diesel engine, and the other effect of parameters injection pressure and load are taken as variable for optimization. Plastic pyrolysis oil can be blended and used in many different concentrations, including P0D100 (pure biodiesel), P10D90 (10% plastic pyrolysis oil, 90% diesel), P20D80 (20% plastic pyrolysis oil, 80% diesel) and P30D70 (30% plastic pyrolysis oil, 70% petroleum diesel). As the experiment required simultaneously optimization of three parameter with four levels, taguchi method of optimization is used in this experiment. The results of taguchi experiment identifies that that Injection pressure 200 bar, blend P30D70 and engine load 1 kg are optimum parameter setting for lowest NOx emission. Engine performance is mostly influenced by engine load and is least influenced by injection pressure.