Comparison of aldehyde emissions simulation with FTIR measurements in the exhaust of a spark ignition engine fueled by ethanol

Abstract

This work presents a numerical simulation model for aldehyde formation and exhaust emissions from ethanol-fueled spark ignition engines. The aldehyde simulation model was developed using FORTRAN software, with the input data obtained from the dedicated engine cycle simulation software AVL BOOST. The model calculates formaldehyde and acetaldehyde concentrations from post-flame partial oxidation of methane, ethane and unburned ethanol. The calculated values were compared with experimental data obtained from a mid-size sedan powered by a 1.4-l spark ignition engine, tested on a chassis dynamometer. Exhaust aldehyde concentrations were determined using a Fourier Transform Infrared (FTIR) Spectroscopy analyzer. In general, the results demonstrate that the concentrations of aldehydes and the source elements increased with engine speed and exhaust gas temperature. The measured acetaldehyde concentrations showed values from 3 to 6 times higher than formaldehyde in the range studied. The model could predict reasonably well the qualitative experimental trends, with the quantitative results showing a maximum discrepancy of 39% for acetaldehyde concentration and 21 ppm for exhaust formaldehyde.

Publication DOI: https://doi.org/10.1007/s00231-018-2295-5
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI)
Funding Information: Acknowledgments The authors thank CAPES, CNPq research project 304114/2013-8, FAPEMIG research projects TEC PPM 00136-13, TEC PPM 00385-15 and TEC BPD 00309-13, and VALE/FAPEMIG research project TEC RDP 00198-10 for the financial support to this project.
Additional Information: © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Uncontrolled Keywords: Condensed Matter Physics,Fluid Flow and Transfer Processes
Publication ISSN: 1432-1181
Last Modified: 05 Apr 2024 07:14
Date Deposited: 21 Dec 2018 10:56
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://link.sp ... 0231-018-2295-5 (Publisher URL)
PURE Output Type: Article
Published Date: 2018-07-01
Published Online Date: 2018-02-07
Accepted Date: 2018-01-19
Authors: Sodré, José Ricardo (ORCID Profile 0000-0003-2243-8719)
Zarante, Paola Helena Barros

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