Simulation of Aldehyde Emissions from an Ethanol Fueled Spark Ignition Engine and Comparison with FTIR Measurements

7th European Thermal-Sciences Conference

Zaránte, Paola Helena Barros^1 ; Sodre, Jose Ricardo^2

Universidad Del Atlantico, Department of Mechanical Engineering, km 7 - Antigua via Puerto Colombia, Barranquilla, Colombia^1

Pontifical Catholic University of Minas Gerais, Department of Mechanical Engineering, Belo Horizonte, MG, Brazil^2

关键词: Calculated values;    Chassis dynamometers;    Engine cycle simulation;    Exhaust gas temperatures;    FORTRAN software;    FTIR measurements;    Partial oxidation of methane;    Source elements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032023/pdf
DOI  :  10.1088/1742-6596/745/3/032023

来源: IOP

【 摘 要 】

This paper presents a mathematical model that calculates aldehyde emissions in the exhaust of a spark ignition engine fueled with ethanol. The numerical model for aldehyde emissions was developed using FORTRAN software, with the input data obtained from a dedicated engine cycle simulation software, AVL BOOST. The model calculates formaldehyde and acetaldehyde emissions, formed from the partial oxidation of methane, ethane and unburned ethanol. The calculated values were compared with experimental data obtained by Fourier Transform Infrared Spectroscopy (FTIR). The experiments were performed with a mid-size sedan powered by a 1.4-liter spark ignition engine on a chassis dynamometer. In general, the results demonstrate that the concentrations of aldehydes and the source elements increased with engine speed and exhaust gas temperature. A reasonable agreement between simulated and measured values was achieved.