This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Experimental Investigation of an In-Cylinder Sampling Technique for the Evaluation of the Residual Gas Fraction
Technical Paper
2017-24-0042
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Residual gas plays a crucial role in the combustion process of SI engines. It acts as a diluent and has a huge impact on pollutant emissions (NOx and CO emissions), engine efficiency and tendency to knock. Therefore, characterizing the residual gas fraction is an essential task for engine modelling and calibration purposes. Thus, an in-cylinder sampling technique has been developed on a spark ignition VVT engine to measure residual gas fraction. Two gas sampling valves were flush mounted to the combustion chamber walls; they are located between the 2 intake valves and between intake and exhaust valves respectively. In-cylinder gas was sampled during the compression stroke and stored in a sampling bag using a vacuum pump. The process was repeated during a large number of engine cycles in order to get a sufficient volume of gas which was then characterized with a standard gas analyzer. This paper describes in details the sampling technique and proposes a methodology allowing the evaluation of the residual gas fraction. For this purpose, five kinds of tests were undertaken. First, tests were achieved to reach different volumes of gas in the sampling bag in order to study gas analyzer response and establish the minimum volume required. The system uncertainty and the engine repeatability were tested to determine the maximum sampling error. Then, a short sampling interval was tested throughout the compression stroke using the first sampling valve to identify the temporal disparity in the chamber and determine the maximum permissible crank angle interval for a stable measurement. Several samplings were then performed for different engine operating points to compare the results obtained with the two sampling valves and study spatial inhomogeneity. Results were compared to misfiring samples from the end of the expansion stroke. An accurate and rather simple estimation of the residual fraction was then provided.
Authors
Citation
Jannoun, A., Tauzia, X., Chesse, P., and Maiboom, A., "Experimental Investigation of an In-Cylinder Sampling Technique for the Evaluation of the Residual Gas Fraction," SAE Technical Paper 2017-24-0042, 2017, https://doi.org/10.4271/2017-24-0042.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- Heywood , J. B. Internal Combustion engine Fundamentals McGraw-Hill 1988
- Cho , H. , Lee , K. , Lee , J. , Yoo , J. et al. Measurements and Modeling of Residual Gas Fraction in SI Engines SAE Technical Paper 2001-01-1910 2001 10.4271/2001-01-1910
- Fox , J. , Cheng , W. , and Heywood , J. A Model for Predicting Residual Gas Fraction in Spark-Ignition Engines SAE Technical Paper 931025 1993 10.4271/931025
- Rhodes , D. and Keck , J. Laminar Burning Speed Measurements of Indolene-Air-Diluent Mixtures at High Pressures and Temperatures SAE Technical Paper 850047 1985 10.4271/850047
- Ozdor , N. , Dulger , M. , and Sher , E. Cyclic Variability in Spark Ignition Engines A Literature Survey SAE Technical Paper 940987 1994 10.4271/940987
- Prucka , R. An Experimental Characterization of a High Degree of Freedom Spark-Ignition Engine to Achieve Optimized Ignition Timing Control PH.D. thesis University of Michigan 2008
- Mladek , M. and Onder , C. A Model for the Estimation of Inducted Air Mass and the Residual Gas Fraction using Cylinder Pressure Measurements SAE Technical Paper 2000-01-0958 2000 10.4271/2000-01-0958
- Ponti , F. , Pianai , J. C. , and Suglia , R. Residual Gas Model for On-Line Estimation for Inlet and Exhaust Continous VVT Engine Configuration IFAC World Congress 2004
- Karagiorgis , S. , Collings , N. , Glover , K. , Coghlan , N. et al. Residual Gas Fraction Measurement and Estimation on a Homogeneous Charge Compression Ignition Engine Utilizing the Negative Valve Overlap Strategy SAE Technical Paper 2006-01-3276 2006 10.4271/2006-01-3276
- Ford , R. and Collings , N. Measurement of Residual Gas Fraction using a Fast Response NO Sensor SAE Technical Paper 1999-01-0208 1999 10.4271/1999-01-0208
- Albert , B. and Ghandhi , J. Residual Gas Measurements in a Utility Engine SAE Technical Paper 2004-32-0029 2004 10.4271/2004-32-0029
- Giansetti , P. and Higelin , P. Residual Gas Fraction Measurement and Estimation in Spark Ignition Engine SAE Technical Paper 2007-01-1900 2007 10.4271/2007-01-1900
- Ishizawa , S. Analysis of HC in Residual Gas and Combustion Efficiency of Spark Ignition Engine SAE Technical Paper 972939 1997 10.4271/972939
- Prucka , R. , Filipi , Z. , Assanis , D. , Kramer , D. et al. An Evaluation of Residual Gas Fraction Measurement Techniques in a High Degree of Freedom Spark Ignition Engine SAE Int. J. Engines 1 1 71 84 2009 10.4271/2008-01-0094
- Li , Z. , Xie , H. , and Zhao , H. Studies of the Control of In-cylinder Inhomogeneities in a 4VVAS Gasoline Engine SAE Technical Paper 2008-01-0052 2008 10.4271/2008-01-0052
- Li , N. , Xie , H. , Chen , T. , Li , L. , and Zhao , H. The Effects of Intake Backflow on In-Cylinder Situation and Auto Ignition in a Gasoline Controlled Auto Ignition Engine Applied Energy 101 2013 756 764
- Shen , Z. , Liu , Z. , Tian , J. , and Liu , J. Investigation of In-Cylinder Gas Stratification of Diesel Engine during Intake and Compression Stroke Energy 72 2014 671 679
- Gessenhardt , C. , Schulz , C. , Kaiser , S.A. Endoscopic Temperature Imaging in a Four-Cylinder IC Engine via Two-Color Toluene Fluorescence Proceedings of the Combustion Institute 35 2015 3697 3705
- Li , N. , Xie , H. , Shen , M. , and Zhao , H. CFD Study on Effects of Thermal and Residual Gas Inhomogeneous Distribution on Auto-ignition of Gasoline HCCI Combustion SAE Technical Paper 2010-01-0160 2010 10.4271/2010-01-0160
- Chauvy Marc , Delhom Bruno , Reveillon Julien , Demoulin F.X. Flame/Wall interactions: "Laminar Study of Unburnt HC Formation" Flow Turbulence and Combustion Springer 2010 84 3 369
- Giansetti , P. Contrôle Moteur à Allumage Commandé Estimation / prédiction de la masse et de la composition du mélange enfermé dans le cylindre PH.D. thesis Univerité d’Orléans 2005
- Jang , J. , Yeom , K. , and Bae , C. Effects of Exhaust Throttling on Engine Performance and Residual Gas in an SI Engine SAE Technical Paper 2004-01-2974 2004 10.4271/2004-01-2974