This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Engine Operating Parameter-based Heat Transfer Simulation to Predict Engine Warm-up
Technical Paper
2014-01-1103
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Optimization of engine warm-up behavior has traditionally made use of experimental investigations. However, thermal engine models are a more cost-effective alternative and allow evaluation of the fuel saving potential of thermal management measures in different driving cycles. To simulate the thermal behavior of engines in general and engine warm-up in particular, knowledge of heat distribution throughout all engine components is essential. To this end, gas-side heat transfer inside the combustion chamber and in the exhaust port must be modeled as accurately as possible.
Up to now, map-based models have been used to simulate heat transfer and fuel consumption; these two values are calculated as a function of engine speed and load. To extend the scope of these models, it is increasingly desirable to calculate gas-side heat transfer and fuel consumption as a function of engine operating parameters in order to evaluate different ECU databases.
This paper describes the creation of a parameter-based heat transfer model using a statistical approach. The data for this model is obtained from combustion process calculation using rate of heat release (ROHR) simulation. The procedure is described in detail using the example of a DI gasoline engine. In addition, the basic structure of a thermal engine model is defined.
Recommended Content
Authors
Topic
Citation
Salbrechter, S., Krenn, M., Pirker, G., Wimmer, A. et al., "Engine Operating Parameter-based Heat Transfer Simulation to Predict Engine Warm-up," SAE Technical Paper 2014-01-1103, 2014, https://doi.org/10.4271/2014-01-1103.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- Unterguggenberger P. , Salbrechter S. , Jauk T. , Wimmer A. Herausforderungen bei der Entwicklung von Motorwarmlaufmodellen Wärmemanagement des Kraftfahrzeugs VIII Expert Verlag Renningen 978-3-8169-3145-4 2012
- Salbrechter S. , Wimmer A. , Pirker G. , Nöst M. Simulation des gasseitigen Wärmeeintrags zur Vorausberechnung des thermischen Verhaltens und des Verbrauchs im Motorwarmlauf Motorprozesssimulation und Aufladung III Expert Verlag Renningen 978-3-8169-3145-4 2011
- Beichtbuchner A. Vorausberechnung von Reibung und Kraftstoffverbrauch im Motorwarmlauf Ph.D. Thesis Graz University of Technology 2008
- Unterguggenberger P. Bewertung von Wärmemanagementmaßnahmen zur Reduktion des Kraftstoffverbrauchs im Motorwarmlauf Ph.D. Thesis Graz University of Technology 2012
- Samhaber C. Simulation des thermischen Verhaltens von Verbrennungsmotoren Ph.D. Thesis Graz University of Technology 2002
- Schubert C. Ein universelles Modell zur Beschreibung des gasseitigen Wandwärmeübergangs von Verbrennungsmotoren Ph.D. Thesis Graz University of Technology 2005
- Zapf H. Beitrag zur Untersuchung des Wärmeübergangs während des Ladungswechsels im Viertakt-Dieselmotor Motorentechnische Zeitschrift (MTZ) 30 12 461 465 1969
- Salbrechter S. Parameterbasiertes Modell zur Vorausberechnung des Wärmeeintrags und des Kraftstoffverbrauchs im Motorwarmlauf Ph.D. Thesis Graz University of Technology
- Chmela , F. , Dimitrov , D. , Pirker , G. and Wimmer , A. Konsistente Methodik zur Vorausberechnung der Verbrennung in Kolbenkraftmaschinen Motortechnische Zeitschrift ( MTZ) 06 2006
- Bargende , M. Ein Gleichungsansatz zur Berechnung der instationären Wandwärmeverluste im Hochdruckteil von Ottomotoren Ph.D. Thesis Technische Universität Darmstadt 1991
- Merker , G. , Schwarz , C. and Teichmann , R. Combustion Engines Development Springer Heidelberg 978-3-642-02951-6 2009
- Zimont , V. , Polifke , W. , Bettelini , M. , Weisenstein , W. et. at. An efficient computational model for premixed turbulent combustion at high Reynolds numbers based on turbulent flame speed closure J. Eng. Gas Turbines Power 120 3 526 532 1998 10.1115/1.2818178
- Peters , N. Abschlußbericht zum Forschungsvorhaben Pe 241/9-2 Turbulente Brenngeschwindigkeit RWTH Aachen University Aachen 1994
- Heywood , J.B. Internal Combustion Engine Fundamentals McGraw-Hill New York 0-07-028637-X 1998