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Sensitivity Analysis of Key Engine and Vehicle Parameters in Engine Coolant Temperature Predictions
Technical Paper
2015-01-0442
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper discusses the sensitivity of key parameters that are used as an input into engine cooling system simulation model that affect the coolant temperature and required airflow calculations. In simulation, these parameters are obtained either from calculations of other programs such as a combustion program or from measured engine test data and are typically assumed to be constant. Tests and measurements from vehicle tests indicate that these parameters always vary affecting the final predicted coolant temperature. The sensitivity on few selected parameters such as the ambient pressure, temperature, humidity, coolant properties among others were studied. Results discussed in this paper quantify the effect of each of these parameters on required airflow and advise which parameters must be tightly controlled to improve the robustness of the simulation model and the accuracy of predictions.
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Citation
Uppuluri, S. and Naiknaware, A., "Sensitivity Analysis of Key Engine and Vehicle Parameters in Engine Coolant Temperature Predictions," SAE Technical Paper 2015-01-0442, 2015, https://doi.org/10.4271/2015-01-0442.Also In
References
- Kanefsky , P. , Nelson , V. , and Ranger , M. A Systems Engineering Approach to Engine Cooling Design SAE Technical Paper 1999-01-3780 1999 10.4271/1999-01-3780
- Scott , T. , Chang , F. , Khandaker , M. , and Uppuluri , S. Transient Thermal Modeling of Power Train Components SAE Int. J. Passeng. Cars - Mech. Syst. 5 2 962 973 2012 10.4271/2012-01-0956
- Shayler , P. , Leong , D. , and Murphy , M. Contributions to Engine Friction During Cold, Low Speed Running and the Dependence on Oil Viscosity SAE Technical Paper 2005-01-1654 2005 10.4271/2005-01-1654
- Sandoval , D. and Heywood , J. An Improved Friction Model for Spark-Ignition Engines SAE Technical Paper 2003-01-0725 2003 10.4271/2003-01-0725
- Puntigam , W. , Hörmann , T. , Schierl , K. , Wiesler , B. et al. Thermal Management Simulations By Coupling of Different Software Packages to a Comprehensive System SAE Technical Paper 2005-01-2061 2005 10.4271/2005-01-2061
- Andrews , G. , Harris , J. , and Ounzain , A. Transient Heating and Emissions of an SI Engine During the Warm-up Period SAE Technical Paper 880264 1988 10.4271/880264
- Taylor , G. and Stewart , S. Cold Start Impact on Vehicle Energy Use SAE Technical Paper 2001-01-0221 2001 10.4271/2001-01-0221
- Burke , R. et.al Systems Approach to the Improvement of Engine Warm-up Behavior Proc. IMechE 225 2010 190 205
- Burke , J. and Haws , J. Vehicle Thermal Systems Modeling Using FLOWMASTER2 SAE Technical Paper 2001-01-1696 2001 10.4271/2001-01-1696
- Kaplan , J. and Heywood , J. Modeling the Spark Ignition Engine Warm-Up Process to Predict Component Temperatures and Hydrocarbon Emissions SAE Technical Paper 910302 1991 10.4271/910302
- Kaplan , J.A. Modeling the Spark Ignition Engine Warm-Up Process to Predict Component Temperatures M.S. Thesis Massachusetts Institute of Technology 1990
- Olivier , J.A. , and Meyer , J.P. Single-Phase Heat Transfer and Pressure Drop of the Cooling of Water Inside Smooth Tubes for Transitional Flow With Different Inlet Geometries ASHRAE HVAC&R Research 16 4 July 2010 471 495
- Flowmaster heat transfer manual