This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Modeling of Quasi-Steady State Heat Transfer Phenomena with the Consideration of Backflow Gas Effect at Intake Manifold of IC Engines and Its Numerical Analyses on 1-D Engine Simulation
Technical Paper
2018-32-0029
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
An empirical equation was developed for modeling the heat transfer phenomena taking place in an intake manifold which included the backflow gas effect. In literature, heat transfer phenomenon at intake system is modeled based on steady flow assumptions by Colburn analogy. Previously, authors developed an equation with the introduction of Graetz and Strouhal numbers, using a port model experimental setup. In this study, to further improve the empirical equation, real engine experiments were conducted where pressure ratio between the intake manifold and engine cylinder were added along with Reynolds number to characterize the backflow gas effect on intake air temperature. Compared to the experimental data, maximum and average errors of intake air temperature estimated from the new empirical equation were found to be 2.9% and 0.9%, respectively. Furthermore, Colburn analogy and suggested empirical equation were consecutively implemented to 1-D engine simulation software on gasoline and diesel engine setups. Naturally aspirated gasoline engine simulations revealed the importance of the backflow gas effect in line with the real engine experiments. Maximum and average temperature differences between the Colburn analogy and suggested equation showed 36.0 K and 28.7 K, respectively. In turbocharged diesel engine simulations, intake air temperature’s effect on auto ignition timing was analyzed. At engine speed of 2250 rpm, in-cylinder air temperature difference at IVC was found to be 5.8 K. This difference corresponded to an advanced auto-ignition timing by 1.15 deg. CA, which could be interpreted an estimated reduction of CO2 gas by 0.28%.
Recommended Content
Authors
Topic
Citation
Yilmaz, E., Ichiyanagi, M., and Suzuki, T., "Modeling of Quasi-Steady State Heat Transfer Phenomena with the Consideration of Backflow Gas Effect at Intake Manifold of IC Engines and Its Numerical Analyses on 1-D Engine Simulation," SAE Technical Paper 2018-32-0029, 2018, https://doi.org/10.4271/2018-32-0029.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 | ||
Unnamed Dataset 6 | ||
Unnamed Dataset 7 | ||
Unnamed Dataset 8 | ||
Unnamed Dataset 9 | ||
Unnamed Dataset 10 |
Also In
References
- Incropera , F.P. and DeWitt , D.P. Fundamentals of Heat and Mass Transfer Fifth John Wily & Sons 2001 944
- JSME Data Book: Heat Transfer Fifth 2009 45 47
- Schurov , S.M. and Collings , N. A Numerical Simulation of Intake Port Phenomena in a Spark Ignition Engine under Cold Starting Conditions SAE Technical Paper 941874 1994 10.4271/941874
- Shayler , P.J. , Colechin , M.J.F. , and Scarisbrick , A. Heat Transfer Measurements in the Intake Port of a Spark Ignition Engine SAE Technical Paper 960273 1996 10.4271/960273
- Izumi , H. , Kidani , Y. , and Suzuki , T. The Effect of Intake System Heat Transfer on Air Fuel Ratio and Fuel Injection Correction with Intake System Temperature Trans. Soc. Automotive Eng. Jpn. 39 5 33 38 2008
- Suzuki , T. and Ichiyanagi , M. Robust Control Design for Air-Fuel Ratio Fluctuation of Gasoline Engine (1st Report: Development of Feed-Forward Controller with Heat Transfer Model at Intake) J. JSDE 50 10 533 540 2015
- Suzuki , T. and Ichiyanagi , M. Robust Control Design for Air-Fuel Ratio Fluctuation of Gasoline Engine (2nd Report: Application of Feed-Forward Controller with Heat Transfer Model at Intake to Multiple Cylinder Engine) J. JSDE 50 10 541 547 2015
- Yoshida , M. , Tominaga , K. , Suzuki , T. , and Oguri , Y. The Effect of Heating New-Charged Air and Its Temperature in Intake System (1st Report, Under Steady Flow and Motoring Conditions) Trans. Jpn. Soc. Mech. Eng. B. 65 633 341 346 1999
- Ichiyanagi , M. and Suzuki , T. Modeling of Unsteady Heat Transfer Phenomena of Intake System for Estimation of Intake Air Flow Rate of Internal Combustion Engine J. JSDE 52 5 331 340 2017
- 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
- Bauer , W. and Heywood , J.B. Flow Characteristics in Intake Port of Spark Ignition Engine Investigated by CFD and Transient Gas Temperature Measurement SAE Technical Paper 961997 1996 10.4271/961997
- Bauer , W. , Balun , P. , and Heywood , J.B. Heat Transfer and Mixture Vaporization in Intake Port of Spark-Ignition Engine SAE Technical Paper 972983 1997 10.4271/972983