Abstract
Fuel atomization in diesel compression ignition engines is significantly affected on the performance, evaporation, self-ignition, and emissions of the engine. Therefore, the quality of the spray atomization has to study at first. Algae-Derived renewable diesel fuel in a single hole nozzle atomizer has been chosen as an alternative fuel for diesel. The differences in physical properties of algae-derived renewable diesel, biodiesels (from palm and cooked oil) and pure diesel are effected on both spray characteristics and the internal nozzle flow. Numerical simulations are presented in this study using Eulerian-Eulerian technique to model the spray-gas interaction. The spray moments model has been used to characterize the spray parameters. First, the model is validated against the spray tip penetration of diesel spray characteristics obtained from the experimental data conducted in house-code using constant volume spray chamber and the results show a good agreement. Then, comparisons were made among the selected fuels. The numerical simulations show that the algae-derived renewable diesel is very similar to pure diesel and can be used as an alternative fuel.
Highlights
As Biodiesel fuel, its demand currently continues to increase
The results show that the bio-derived fuels have longer extinction strain rates of flames of than petroleum-derived fuels
Experiments were made by Gowdagiri et al, 2014 To determine the ignition delay time for two types of diesel fuels, conventional military-grade F-76 and an alternative hydroprocessed renewable diesel fuel derived from algal oil HRD-76
Summary
As Biodiesel fuel, its demand currently continues to increase. Algae is most likely that biodiesel fuel will be an important source in the future of green energy market of the world. Experimental work for several alternative fuels in a twin-fluid airblast atomizer was carried out by Legg et al, 2012, to investigated atomization performance. They observed that the break-up process and velocity fields were approximately similar among the fuels. Extinction strain rates of diffusion and premixed flames of petroleum-derived fuels and an algae-derived hydrotreated renewable F-76 diesel fuel were experimentally measured by Li et al, 2013 in the counterflow configuration under reacting conditions of a fuel-containing stream temperature of 443 K and at atmospheric pressure. Experiments were made by Gowdagiri et al, 2014 To determine the ignition delay time for two types of diesel fuels, conventional military-grade F-76 and an alternative hydroprocessed renewable diesel fuel derived from algal oil HRD-76. A test on diesel engine by using algae biodiesel was measured by Nagane and Choudhari, 2015, the cetane number of algae biodiesel is higher than of diesel, and the cetane number of algae biodiesel blends can be improved by increasing the blending ratio
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