Abstract
KEYWORDS:
spray, modeling, biofuel, mixture formation, renewable energy
ABSTRACT:
In terms of energy savings and protection of global environment against air pollution is a very important problem. Vegetables oil is an interesting alternative to fossil diesel fuel, as they are renewable source of energy, have a low sulfur content, and are safe to store. However, using vegetable oils in order to fuel direct injection diesel engines creates problems due to their low heat energy, low volatility and high viscosity.
These problems are reduced to minimum by subjecting the vegetable oils to the process of tranesterification. Rapeseed Methyl Ester (RME) is one of the most attractive alternative fuels for CI engines. Same problems remain, like as spray parameters - injection velocity, injection cone angle, spray penetration, droplets size - modified by different fuel properties.
In this paper, using a multidimensional numerical analysis (CFD) application, which was used to understand the phenomena of fuel injection process and the help the development of the srpay specifications, is described. The numerical model was based on the computer code KIVA-3V, with a description model for RME type fuel.