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Modeling of Unsteady Heat Transfer Phenomena at the Intake Manifold of a Diesel Engine and Its Application to 1-D Engine Simulation
Technical Paper
2017-32-0097
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In the past two decades, internal combustion engines have been required to improve their thermal efficiency in order to limit hazardous gas emissions. For further improvement of the thermal efficiency, it is required to predict the mass of intake air into cylinders in order to control the auto-ignition timing for CI engines. For an accurate prediction of intake air mass, it is necessary to model the heat transfer phenomena at the intake manifold. From this intention, an empirical equation was developed based on Colburn equation. Two new arguments were presented in the derived formula. The first argument was the addition of Graetz number, where it characterized the entrance region thermal boundary layer development and its effect on the heat transfer inside the intake manifold. As the second argument, Strouhal number was included in order to represent intake valve effect on heat transfer. This study compared experimental data with the present empirical equation, and average error was estimated to be 3.1%, which was significantly improved in comparison with the Colburn equation. Furthermore, derived empirical heat transfer equation was implemented to the intake manifold model of a diesel engine in 1-D engine simulation. The study confirmed the influence of the heat transfer phenomena, and its importance to intake air. At IVC, temperature difference between Colburn equation and derived equation was calculated to be 3.8 K. This corresponded to an advanced auto-ignition timing by 0.78 deg. CA, which gives an estimated improvement of 0.22% when evaluating both the thermal efficiency and CO2 emission.
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Yilmaz, E., Joji, H., Ichiyanagi, M., and Suzuki, T., "Modeling of Unsteady Heat Transfer Phenomena at the Intake Manifold of a Diesel Engine and Its Application to 1-D Engine Simulation," SAE Technical Paper 2017-32-0097, 2017, https://doi.org/10.4271/2017-32-0097.Data Sets - Support Documents
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References
- Yilmaz , E. , Ichiyanagi , M. , Suzuki , T. Modeling of Unsteady Heat Transfer Phenomena at Intake System of Internal Combustion Engine Proc. of Int. Forum Heat Trans. 2016 Paper No. IFHT2016-1855 2016
- Suzuki , K. , Miyazaki , T. , Nemoto , M. , Machida , K. Optimum Control of Spark Ignition Timing in a Gasoline Engine Using Model Based Methodology Proc. 2005 JSAE Autumn Convention Paper No. 20055773 2005
- Ichiyanagi , M. , Suzuki , T. Implementation of Air-Fuel Ratio Feed-Forward Controller Considering Heat Transfer at Intake System to SI Engine SAE Tech. Paper , Paper No. 2015-01-1982 2015
- Ichiyanagi , M. , Kimura , T. , Suzuki , T. Development of Engine Control System for Air-to-Fuel Ratio Using Heat Transfer Model at Intake System Proc. of Int. Forum Heat Trans. 2016 Paper No. IFHT2016-1853 2016
- Ichiyanagi , M. , Takara , S. , Suzuki , T. Reduction Method of Combustion Fluctuation Using Estimation Technique of Maximum In-Cylinder Pressure of Internal Combustion Engine Proc. of Int. Forum Heat Trans. 2016 Paper No. IFHT2016-1854 2016
- Schurov , S.M. , Collings , N. A Numerical Simulation of Intake Port Phenomena in a Spark Ignition Engine Under Cold Starting Conditions SAE Tech. Paper , Paper No. 941874 1994
- Shayler , P.J. , Colechin , M.J.F. , Scarisbrick , A. Heat Transfer Measurements in the Intake Port of a Spark Ignition Engine SAE Tech. Paper , Paper No. 960273 1996
- Wimmer , A. , Pivec , R. , Sams , T. Heat Transfer to the Combustion Chamber and Port Walls of IC Engines - Measurement and Prediction SAE Tech. Paper , Paper No. 2000-01-0568 2000
- Depcik , C. , Assanis , D. A Universal Heat Transfer Correlation for Intake and Exhaust Flows in a Spark-Ignition Internal Combustion Engine SAE Tech. Paper , Paper No. 2002-01-0372 2002
- Yoshida , M. , Tominaga , K. , Suzuki , T. , Oguri , Y. The Effect of Heating New-Charged Air and Its Temperature in Intake System (1st Report, Under Steady Flow and Motoring Condition) Trans. Jpn Soc. Mech. Eng. 65-633 1845 1850 2002
- Jpn Soc. Mech. Eng. Heat Transfer, JSME Textbook Series Maruzen Publishing Co., Ltd 2005
- Heywood , J. Internal Combustion Engine Fundamentals McGraw-Hill, Inc. 1988