This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Applicability of Ionization Current Sensing Technique with Plasma Jet Ignition Using Pre-Chamber Spark Plug in a Heavy Duty Natural Gas Engine
Technical Paper
2012-01-1632
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This article deals with study of ionization current sensing technique's signal characteristics while operating with pre-chamber spark plug to achieve plasma jet ignition in a 6 cylinder 9 liter turbo-charged natural gas engine under EGR and excess air dilution. Unlike the signal with conventional spark plug which can be divided into distinct chemical and thermal ionization peaks, the signal with pre-chamber spark plug shows a much larger first peak and a negligible second peak thereafter. Many studies in past have found the time of second peak coinciding with the time of maximum cylinder pressure and this correlation has been used as an input to combustion control systems but the absence of second peak makes application of this concept difficult with pre-chamber spark plug. However, it has been observed that the first peak is very strong and does not deteriorate much even under lean operation and hence ion current signal integral can be used to calculate real time combustion stability parameters for combustion control systems. The correlation between the coefficient of variation (COV) of indicated mean effective pressure (IMEP) and ion current integral for operation at 5, 12 and 18 bar IMEP load under stoichiometric and diluted operation with EGR and excess air is presented in this article.
Recommended Content
Authors
Topic
Citation
Shah, A., Tunestal, P., and Johansson, B., "Applicability of Ionization Current Sensing Technique with Plasma Jet Ignition Using Pre-Chamber Spark Plug in a Heavy Duty Natural Gas Engine," SAE Technical Paper 2012-01-1632, 2012, https://doi.org/10.4271/2012-01-1632.Also In
References
- Dale, J.D. Checkel, M.D. Smy, P.R. Application of high energy ignition systems to engines Progress in Energy and Combustion Science 23 5-6 1997 379 398 0360-1285 10.1016/S0360-1285(97)00011-7
- Dale, J. Smy, P. Clements, R. “Laser Ignited Internal Combustion Engine - An Experimental Study,” SAE Technical Paper 780329 1978 10.4271/780329
- McMillian, M. Richardson, S. Woodruff, S. McIntyre, D. “Laser-Spark Ignition Testing in a Natural Gas-Fueled Single-Cylinder Engine,” SAE Technical Paper 2004-01-0980 2004 10.4271/2004-01-0980
- Combustion in Gas Fueled Compression: Ignition Engines of the Dual Fuel Type Karim, G. A. J. Eng. Gas Turbines Power 125 827 2003 10.1115/1.1581894
- Karim, Ghazi A. A review of combustion processes in the dual fuel engine-The gas diesel engine Progress in Energy and Combustion Science 6 3 1980 277 285 0360-1285 10.1016/0360-1285(80)90019-2
- Toulson, E. Schock, H. Attard, W. “A Review of Pre-Chamber Initiated Jet Ignition Combustion Systems,” SAE Technical Paper 2010-01-2263 2010 10.4271/2010-01-2263
- Förster, J. Günther, A. Ketterer, M. Wald, K. “Ion Current Sensing for Spark Ignition Engines,” SAE Technical Paper 1999-01-0204 1999 10.4271/1999-01-0204
- Saitzkoff, A. Reinmann, R. Mauss, F. Glavmo, M. “In-Cylinder Pressure Measurements Using the Spark Plug as an Ionization Sensor,” SAE Technical Paper 970857 1997 10.4271/970857
- Hellring, M. Munther, T. Rögnvaldsson, T. Wickström, N. et al. “Robust AFR Estimation Using the Ion Current and Neural Networks,” SAE Technical Paper 1999-01-1161 1999 10.4271/1999-01-1161
- Abdel-Rehim, A. Henein, N. Van Dyne, E. “Ion Current in a Spark Ignition Engine using Negative Polarity on Center Electrode,” SAE Technical Paper 2007-01-0646 2007 10.4271/2007-01-0646
- Andersson, I. Eriksson, L. “Ion Sensing for Combustion Stability Control of a Spark Ignited Direct Injected Engine,” SAE Technical Paper 2000-01-0552 2000 10.4271/2000-01-0552
- Haskara, I. Zhu, G. Daniels, C. Winkelman, J. “Closed Loop Maximum Dilution Limit Control using In-Cylinder Ionization Signal,” SAE Technical Paper 2005-01-3751 2005 10.4271/2005-01-3751
- Shimasaki, Y. Kanehiro, M. Baba, S. Maruyama, S. et al. “Spark Plug Voltage Analysis for Monitoring Combustion in an Internal Combustion Engine,” SAE Technical Paper 930461 1993 10.4271/930461
- Eriksson, L. Nielsen, L. Nytomt, J. “Ignition Control by Ionization Current Interpretation,” SAE Technical Paper 960045 1996 10.4271/960045
- Einewall, P. Johansson, B. “Combustion Chambers for Supercharged Natural Gas Engines,” SAE Technical Paper 970221 1997 10.4271/970221
- Shah, A. Tunestal, P. Johansson, B. “Investigation of performance and emission characteristics of a Heavy Duty Natural Gas Engine operated with Pre-chamber spark plug and dilution with Excess Air and EGR,” SAE Technical Paper 2012-01-1980 2012 10.4271/2012-01-1980
- Einewall, P. Tunestål, P. Johansson, B. “The Potential of Using the Ion-Current Signal for Optimizing Engine Stability - Comparisons of Lean and EGR (Stoichiometric) Operation,” SAE Technical Paper 2003-01-0717 2003 10.4271/2003-01-0717
- Kaiadi, M. Tunestål, P. Johansson, B. “Closed-Loop Combustion Control Using Ion-current Signals in a 6-Cylinder Port-Injected Natural-gas Engine,” SAE Technical Paper 2008-01-2453 2008 10.4271/2008-01-2453
- Yoshiyama, S. Tomita, E. Hamamoto, Y. “Fundamental Study on Combustion Diagnostics Using a Spark Plug as Ion Probe,” SAE Technical Paper 2000-01-2828 2000 10.4271/2000-01-2828