Evaluación de los factores de emisión durante el ciclo europeo NEDC en un MCIA de encendido por compresión utilizando mezclas de combustibles diésel Premium y Biodiesel, producidos por transesterificación básica y en condiciones supercríticas

Abstract

The main project is a part of the PIMI 10 – 15 research project "Study of the production of biodiesel for the automotive sector under supercritical conditions and evaluation of its mechanical and environmental performance in internal combustion engines ignited by compression". The objective is to evaluate the polluting emissions generated while the vehicle is driving under the European Cycle NEDC (New European Drive Cycle) in a compression - ignition internal combustion engine using biodiesel fuel blends produced from palm oil by basic transesterification and in supercritical conditions. The biodiesel was produced by basic transesterification and under supercritical conditions in LACBAL (Laboratorio de Combustibles, Biocombustibles y Aceites Lubricantes), and the tests were carried out in the Technological Transfer Center for Training and Research in Vehicle Emissions Control – CCICEV; these laboratories belong to the Escuela Politécnica Nacional, Quito Ecuador. Were used three fuels: Premium diesel (DP), Premium diesel blend with 10% palm biodiesel obtained under supercritical conditions (BSC10), and Premium diesel blend with 10% palm biodiesel obtained by basic catalysis (BCB10). Were performed five tests for each fuel and were calculated the emission factors using the simplified combustion model. The results showed that in the mixture of BSC10 under super critical conditions the CO, HC, PM decrease, and there is an increasing in the CO2 content, improving the combustion; for this reason, the NOx increased too.