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research-article

Investigation of Biodiesel Combustion and Emissions using Detailed Chemical Kinetics

[+] Author and Article Information
Aron P. Dobos

Department of Mechanical Engineering, Colorado State University, Fort Collins, Colorado 80523
adobos@engr.colostate.edu

Allan T. Kirkpatrick

Department of Mechanical Engineering, Colorado State University, Fort Collins, Colorado 80523
allan@engr.colostate.edu

1Corresponding author.

ASME doi:10.1115/1.4038521 History: Received October 20, 2016; Revised September 19, 2017

Abstract

This paper studies the differences in spray structure and emissions trends between diesel and biodiesel fuels in a compression ignition engine. A computationally efficient and predictive quasidimensional simulation model is combined with fuel-specific physical properties and chemical kinetic mechanisms to predict spray mixing, combustion, and emissions behavior. Results underscore the complex relationships between NOx emissions, operational parameters, and fuel chemistry, and provide further evidence of a link between stoichiometry near the flame lift-off length and formation of NOx.

Copyright (c) 2017 by ASME
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