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Refining Measurement Uncertainties in HCCI/LTGC Engine Experiments
Technical Paper
2018-01-1248
ISSN: 0148-7191, e-ISSN: 2688-3627
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Abstract
This study presents estimates for measurement uncertainties for a Homogenous Charge Compression Ignition (HCCI)/Low-Temperature Gasoline Combustion (LTGC) engine testing facility. A previously presented framework for quantifying those uncertainties developed uncertainty estimates based on the transducers manufacturers’ published tolerances. The present work utilizes the framework with improved uncertainty estimates in order to more accurately represent the actual uncertainties of the data acquired in the HCCI/LTGC laboratory, which ultimately results in a reduction in the uncertainty from 30 to less than 1 kPa during the intake and exhaust strokes. Details of laboratory calibration techniques and commissioning runs are used to constrain the sensitivities of the transducers relative to manufacturer supplied values. The uncertainty framework is also extended to consider additional sources of uncertainty, including non-ideal engine volume history due to kinematic effects on the effective connecting rod length. Finally, the uncertainty propagation chain is analyzed to determine primary uncertainty sources, and mitigations are discussed.
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Petitpas, G., Whitesides, R., Dernotte, J., and Dec, J., "Refining Measurement Uncertainties in HCCI/LTGC Engine Experiments," SAE Technical Paper 2018-01-1248, 2018, https://doi.org/10.4271/2018-01-1248.Data Sets - Support Documents
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References
- Brown , W.L. 1967
- Brunt , M.F.J. and Emtage , A.L. 1997 10.4271/970037
- Randolph , A.L. 1990
- Lee , K. , Yoon , M. , and Sunwoo , M. A Study on Pegging Methods for Noisy Cylinder Pressure Signal Control Engineering Practice 16 922 929 2008 10.1016/j.conengprac.2007.10.007
- Bueno , A.V. , Velasquez , J.A. , and Milanez , L.F. Haq Z. Appl. Meas. Syst. 2012 390
- Rocco , V. 1993 10.4271/930595
- Asad , U. , Kumar , R. , Han , X. , and Zheng , M. Precise Instrumentation of a Diesel Single-Cylinder Research Engine Measurement 44 1261 1278 2011 10.1016/j.measurement.2011.03.028
- Petitpas , G. , McNenly , M.J. , and Whitesides , R.A. A Framework for Quantifying Measurement Uncertainties and Uncertainty Propagation in HCCI/LTGC Engine Experiments SAE International Journal of Engines 10 1275 1296 2017 10.4271/2017-01-0736
- Dec , J.E. Advanced Compression-Ignition Engines-Understanding the in-Cylinder Processes Proceedings of the Combustion Institute 32 2727 2742 2009 10.1016/j.proci.2008.08.008
- Dec JE , Sjöberg M SAE Transactions 2003 10.4271/2003-01-0752
- Dec , J.E. and Yang , Y. Boosted HCCI for High Power without Engine Knock and with Ultra-Low NOx Emissions - Using Conventional Gasoline SAE International Journal of Engines 3 750 767 2010 10.4271/2010-01-1086
- http://www.tabertransducer.com/aerospace-satellite-spacecraft-transducers
- Gautschi , G. Piezoelectric Sensorics - Force Strain Pressure Acceleration and Acoustic Emission Sensors Materials and Amplifiers Springer First 2002 2002
- Ellison SLR , Williams A Quantifying Uncertainty in Analytical Measurement Third 2012
- LLNL Weather http://www-metdat.llnl.gov/cgi-pub/reports/current.pl 2017
- avl.com https://www.avl.com/pressure-sensors-for-engine-indicating 2017
- Rai HS , Brunt MFJ , Loader CP SAE Transactions 1999 10.4271/1999-01-1329
- Lee S , Bae C , Prucka R , Fernandes G , Filipi Z , Assanis DN SAE Trans J Engines 2005 10.4271/2005-01-2092
- Filoux , E. , Callé , S. , Certon , D. , Lethiecq , M. , and Levassort , F. Modeling of Piezoelectric Transducers with Combined Pseudospectral and Finite-Difference Methods The Journal of the Acoustical Society of America 123 4165 4173 2008 10.1121/1.2903876
- Aronsson , U. , Solaka , H. , Chartier , C. , Andersson , O. , and Johansson , B. Impact of Mechanical Deformation Due to Pressure, Mass, and Thermal Forces on the In-Cylinder Volume Trace in Optical Engines of Bowditch Design SAE Technical Paper 2011-26-0082 2011 10.4271/2011-26-0082
- Aronsson , U. , Chartier , C. , Horn , U. , Andersson , Ö. et al. Heat Release Comparison between Optical and All-Metal HSDI Diesel Engines SAE Technical Paper 2008-01-1062 2008 10.4271/2008-01-1062
- Aronsson , U. , Solaka , H. , Lequien , G. , Andersson , O. , and Johansson , B. Analysis of Errors in Heat Release Calculations Due to Distortion of the In-Cylinder Volume Trace from Mechanical Deformation in Optical Diesel Engines SAE International Journal of Engines 5 1561 1570 2012 10.4271/2012-01-1604
- West , I.A. 2016