Experimental investigations of metal oxide nano-additives on working characteristics of CI engine. 2019-01-0794
Biodiesel is a potential substitute for diesel and extensive research is carried in India on production and utilization of biodiesel from a variety of edible/non-edible, animal fat and waste oils. However, issues like stability, clogging, increased NOx, and high consumption rate etc. are some of the critical issues which are associated with long-term use of these alternative fuels in a diesel engine. The recent advances in nanoscience and nanotechnology have paved the way to produce nanoscale energetic materials which have tremendous advantages over micron sized materials. Nanofluids are a new class of solid-liquid composite materials consisting of nano-sized solid particles dispersed in any base fluid. The present study investigates the effect of doping metal oxides nanoparticles with waste fish oil-based biodiesel. For the present study, the blends of fuel are prepared by using 30ppm each of titanium dioxide and alumina nanoparticles respectively. The addition of nano-additives in biodiesel is achieved by means of ultrasonicator, to attain uniform suspension. A series of experiments have been conducted to evaluate the performance and emission characteristics of single cylinder direct injection (DI) diesel engine with four different fuel samples containing biodiesel–diesel (B20), biodiesel–diesel–nanoparticles (B20Ti30), (B20Al30) and biodiesel–nanoparticles (B20Ti30Al30). The thermo-physical properties of the fuel samples, including density, viscosity and calorific values are also determined.