TY - JOUR
TI - Impact of physical properties of mixture of diesel and biodiesel fuels on hydrodynamic characteristics of fuel injection system
AU - Filipović Ivan M
AU - Pikula Boran D
AU - Kepnik Goran V
JN - Thermal Science
PY - 2014
VL - 18
IS - 1
SP - 143
EP - 153
PT - Article
AB - One of the alternative fuels, originating from renewable sources, is  biodiesel fuel, which is introduced in diesel engines without major  construction modifications on the engine. Biodiesel fuel, by its physical and  chemical properties, is different from diesel fuel. Therefore, it is expected  that by the application of a biodiesel fuel, the characteristic parameters of  the injection system will change. These parameters have a direct impact on  the process of fuel dispersion into the engine cylinder, and mixing with the  air, which results in an impact on the quality of the combustion process.  Method of preparation of the air-fuel mixture and the quality of the  combustion process directly affect the efficiency of the engine and the level  of pollutant emissions in the exhaust gas, which today is the most important  criterion for assessing the quality of the engine. The paper presents a  detailed analysis of the influence of physical properties of a mixture of  diesel and biodiesel fuels on the output characteristics of the fuel  injection system. The following parameters are shown: injection pressure,  injection rate, the beginning and duration of injection, transformation of  potential into kinetic energy of fuel and increase of energy losses in fuel  injection system of various mixtures of diesel and biodiesel fuels. For the  analysis of the results a self-developed computer program was used to  simulate the injection process in the system. Computational results are  verified using the experiment, for a few mixtures of diesel and biodiesel  fuels. This paper presents the verification results for diesel fuel and  biodiesel fuel in particular.