Abstract
Abstract
The reduction of greenhouse gas emissions, together with the reduction of fuel consumption, the improvement of air quality and the widening of energy resources are major axis for improvement of engines and for the development of new fuel formulations. Yet, diesel engine technology was strongly improved during the last 10 years with the widespread use of high pressure direct injection and the implementation of post-treatment specific devices. Further, the future regulatory requirements will bring new constraints which will favor the use of advanced strategies, both for combustion parameters and post-treatment. Among others, the new combustion modes as LTC and HCCI combustion process seem promising solutions. These technological changes will induce an evolution of the fuel needed properties and to the development of new essential characteristics to be able to use these new technologies with the largest benefits. Besides, the need to reduce greenhouse gas emissions and to enlarge the energy sources creates the opportunity for the emergence of new fuels such as biofuels. This paper will provides an analysis of the consequences the new technologies will have on diesel fuels formulation strategies, determining what could be the future relevant parameters for diesel fuels and will propose alternative strategies for diesel fuel formulation, taking into account the products that can be expected for the next future: conventional fuels, advanced fuels, first and second generation biofuels, synthetic fuels.