Open AccessExperimental investigations for rheological characteristics of TiO2 nanoparticles doped diesel, biodiesel fuel blends for use in compression ignition engine
Author(s) -
Vishal Saxena,
Niraj Kumar,
Saxena Vinod Kumar,
Vineet Singh,
Niraj Kumar,
Anurag Maheswari
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/691/1/012022
Subject(s) - materials science , diesel fuel , biodiesel , mass fraction , combustion , chemical engineering , volume fraction , composite material , shear rate , rheology , waste management , organic chemistry , chemistry , catalysis , engineering
The present experimental study aims to investigate the variations in rheological characteristics of TiO 2 nanoparticles doped biodiesel diesel fuel blends at different temperatures and nanoparticle mass fractions. Fuel blends of Acacia Concinna biodiesel (AC BD) in the volume fraction of 40% are mixed with in the remaining 60% volume fraction of mineral diesel. Fuel blends are modified by doping TiO 2 nanoparticles in the weight fraction of 0.1, 0.2, 0.3 and 0.4 g/liter in biodiesel diesel fuel blends. These modified fuel blends (MNF) are prepared by means of mechanical stirring and ultra-sonication process, which are tested on Rheometer in a temperature range of 293K-363K under different shear rates. The experimental results showed that at concentration of 0.4 g/liter the viscosity of modified fuel blend (MNF0.4) was 7.16% more than the viscosity of mineral diesel. This increase in viscosity of MNF fuel blends are undesirable due to the fact that high injection pressure is required for proper atomization and combustion of fuel, which otherwise overshadows the gain in total heat release rate due to high heat of combustion of TiO2 nanoparticles. Furthermore, rheological characteristics of nanoparticle mixed modified fuel blends are found to be non- Newtonian and shear thinning. The findings of present study ascertain us that modified fuel blend up to 0.2 g/liter of TiO2 nanoparticle concentration (MNF0.2) in AC can be used as alternative fuel without much modifications in the operating and design parameters of existing diesel engine.