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Quantification and Modeling the Effects of Thermal Shock on Combustion Pressure Transducers
Technical Paper
2001-01-3491
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Spring Fuels & Lubricants Meeting & Exhibition
SAE International Fall Fuels & Lubricants Meeting & Exhibition
Language:
English
Abstract
This study's objective was to characterize thermal-shock errors on a specific Kistler pressure transducer and to determine if a thermal-shock correction algorithm using transducer surface temperature could be developed. Atmospheric measurements were made using a thermal-shock rig which intermittently exposed the transducer to a known heat flux while maintaining atmospheric pressure on the transducer diaphragm. Any change in output is attributable to thermal shock. Surface temperature was measured using a separate eroding-type surface thermocouple. The data showed a strong correlation between heat-flux induced temperature change and thermal shock and were used in a least-squares error estimation algorithm to create a model of the thermal shock as a function of transducer surface temperature. The model was calibrated using baseline measurements and tested against measurements made at different heat flux intensities and exposure duration and frequency. The model was able to remove approximately 95% of the error under all tested conditions.
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Authors
Citation
Puzinauskas, P., Mathis, W., and Dzieciuch, M., "Quantification and Modeling the Effects of Thermal Shock on Combustion Pressure Transducers," SAE Technical Paper 2001-01-3491, 2001, https://doi.org/10.4271/2001-01-3491.Also In
References
- Kuratle, R.H. Marki, B. “Influencing Parameters and Error Sources During Indication on Internal Combustion Engines,” SAE Paper# 920233 1992
- Randolph, Andrew L. “Cylinder-Pressure-Transducer Mounting Techniques to Maximize Data Accuracy” SAE Paper # 900171 1990
- Puzinauskas, Paulius V. Tillman, Nohr Eves, Joeseph C. “Measuring Absolute-Cylinder Pressure and Pressure Drop Across Intake Valves of Firing Engines.” SAE Paper # 941881 1994
- Brown, W.L. “Methods for Evaluating Requirements and Errors in Cylinder Pressure Measurement” SAE Paper # 670008 1967
- Alkidas, A.C. Myers, J.P. “Transient Heat-Flux Measurements in the Combustion Chamber of a Spark-Ignition Engine” ASME Journal of Heat Transfer 102 4 62 67 1982
- Ljung, L. System Identification: Theory for the User Prentice-Hall Englewood Cliffs, NJ 1987