Improvisation of Combustion Behaviour of Jojoba Oil Diesel Blend Fuelled di Diesel Engine by Engine Modifications Such as MOP and TBC

To reduce the importance of fossil fuels, the identification of biofuels plays a vital role. The plant oil chosen for this study is novel plant oil named Jojoba oil (the botanical name is Simmondsia Chinensis).  To utilize this type of oil in higher proportion to diesel, engine modifications were carried out. The engine modifications include optimizing salient operating parameters with Thermal Barrier Coating (TBC). Taguchi and Gray relational methods were used for finding the optimized values of salient operating parameters like injection pressure, compression ratio, injection timing, and intake air temperature as ۲۷۵ bar, ۱۹.۵ CR, ۲۷.۵ bTDC, and ۶۵˚C, respectively [۱]. This has helped to combust the higher blends of jojoba oil, namely ۶۰J, ۷۰J, and ۸۰J, without adverse performance and emission characteristics. The fundamental aim of coating Aluminium oxide, Molybdenum, and Titanium oxide (۴۰%, ۳۰%, and ۳۰%) on the inner surface of the piston crown and the cylinder head is to retain heat and thereby achieve higher thermal efficiency.  Combustion, performance, and emission analysis were done and found that ۶۰% by volume of jojoba oil can be applied in a TBC engine which offers ۱۱.۵% higher BTE, ۷۴.۳% lower CO, ۳۱.۲% lower HC, ۸.۶% higher NOx and ۲۵.۹% lower smoke than ۷۰% and ۸۰% by volume of jojoba oil.

کلیدواژه ها:

Jojoba oil ، combustion ، Thermal barrier coating ، Emission ، Performance