TY - JOUR
T1 - Virtual Investigation of Real Fuels by Means of 3D-CFD Engine Simulations
AU - Cupo, Francesco
AU - Chiodi, Marco
AU - Bargende, Michael
AU - Koch, Daniel
AU - Wachtmeister, Georg
AU - Wichelhaus, Donatus
N1 - Publisher Copyright:
© 2019 SAE International and © 2019 SAE Naples Section. All rights reserved.
PY - 2019/9/9
Y1 - 2019/9/9
N2 - The reduction of both harmful emissions (CO, HC, NOx, etc.) and gases responsible for greenhouse effects (especially CO2) are mandatory aspects to be considered in the development process of any kind of propulsion concept. Focusing on ICEs, the main development topics are today not only the reduction of harmful emissions, increase of thermodynamic efficiency, etc. but also the decarbonization of fuels which offers the highest potential for the reduction of CO2 emissions. Accordingly, the development of future ICEs will be closely linked to the development of CO2 neutral fuels (e.g. biofuels and e-fuels) as they will be part of a common development process. This implies an increase in development complexity, which needs the support of engine simulations. In this work, the virtual modeling of real fuel behavior is addressed to improve current simulation capabilities in studying how a specific composition can affect the engine performance. The goal is to create a series of models that allow to virtually investigate different fuels and to minimize, as much as possible, the costly and time-consuming experimental tests. In the first part, a fuel modeling approach is presented and compared with traditional methodologies. Subsequently, two fuel virtual investigations are presented. In the first, fuels with different RON and oxygenates content are compared to analyze their knock behavior and performance potential. In the second analysis, the fuel investigation-conducted virtually at the FKFS of Stuttgart and experimentally at the engine laboratory of the Chair of Internal Combustion Engines at the Technical University of Munich with the support from Volkswagen Motorsport GmbH-on a single-cylinder research engine operating with the innovative SACI (Spark Assisted Compression Ignition) combustion concept is presented.
AB - The reduction of both harmful emissions (CO, HC, NOx, etc.) and gases responsible for greenhouse effects (especially CO2) are mandatory aspects to be considered in the development process of any kind of propulsion concept. Focusing on ICEs, the main development topics are today not only the reduction of harmful emissions, increase of thermodynamic efficiency, etc. but also the decarbonization of fuels which offers the highest potential for the reduction of CO2 emissions. Accordingly, the development of future ICEs will be closely linked to the development of CO2 neutral fuels (e.g. biofuels and e-fuels) as they will be part of a common development process. This implies an increase in development complexity, which needs the support of engine simulations. In this work, the virtual modeling of real fuel behavior is addressed to improve current simulation capabilities in studying how a specific composition can affect the engine performance. The goal is to create a series of models that allow to virtually investigate different fuels and to minimize, as much as possible, the costly and time-consuming experimental tests. In the first part, a fuel modeling approach is presented and compared with traditional methodologies. Subsequently, two fuel virtual investigations are presented. In the first, fuels with different RON and oxygenates content are compared to analyze their knock behavior and performance potential. In the second analysis, the fuel investigation-conducted virtually at the FKFS of Stuttgart and experimentally at the engine laboratory of the Chair of Internal Combustion Engines at the Technical University of Munich with the support from Volkswagen Motorsport GmbH-on a single-cylinder research engine operating with the innovative SACI (Spark Assisted Compression Ignition) combustion concept is presented.
UR - http://www.scopus.com/inward/record.url?scp=85085857214&partnerID=8YFLogxK
U2 - 10.4271/2019-24-0090
DO - 10.4271/2019-24-0090
M3 - Conference article
AN - SCOPUS:85085857214
SN - 0148-7191
VL - 2019-September
JO - SAE Technical Papers
JF - SAE Technical Papers
IS - September
T2 - SAE 14th International Conference on Engines and Vehicles, ICE 2019
Y2 - 15 September 2019 through 19 September 2019
ER -