This content is not included in your SAE MOBILUS subscription, or you are not logged in.
High Bandwidth Heat Transfer and Optical Measurements in an Instrumented Spark Ignition Internal Combustion Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 04, 2002 by SAE International in United States
Annotation ability available
Three independent measurements have been used to investigate combustion within a single cylinder four-stroke research engine operating at low load.
THIN FILM GAUGES
Heat transfer between the working fluid and the combustion chamber in an internal combustion engine is one of the most important parameters for cycle simulation and analysis. Heat transfer influences the in-cylinder pressure and temperature levels, engine efficiency and exhaust emissions.
Heat transfer is determined using platinum thin film resistance thermometers exposed to the combustion gases. These give a frequency response of greater than 100kHz; hence can track heat transfer rate changes on the piston and cylinder head surfaces adequately. The thin film gauges overcome the problems of low bandwidths and large uncertainties associated with thermocouples.
FIBRE OPTIC INSTRUMENTATION
Combustion is a highly complex process where the mechanism of fuel oxidation causes many different chemical species to emit light on specific spectral lines; therefore, from a measured emission spectrum it is possible to infer the chemical species present. Measurements of the spectral content (300 to 850 nm) of the light intensities within the combustion chamber are presented.
HIGH SPEED VIDEO
A high frame-rate colour video camera is used to record a series of images of the firing cycle with a high spatial and temporal resolution through a cylinder head modified for optical access. The video data powerfully illustrates the complex and variable nature of the combustion process.
The three techniques form part of a Data Fusion study researching the application of data processing techniques in complex multidimensional areas such as combustion.
CitationWilson, T., Bryanston-Cross, P., Chana, K., Dunkley, P. et al., "High Bandwidth Heat Transfer and Optical Measurements in an Instrumented Spark Ignition Internal Combustion Engine," SAE Technical Paper 2002-01-0747, 2002, https://doi.org/10.4271/2002-01-0747.
- Alkidas, A.C. “Heat Transfer Characteristics of a Spark-Ignition Engine” Journal of Heat Transfer 102 2 1980
- Alkidas, A.C. Myers, J.P. “Transient Heat Flux Measurements in a Combustion Chamber of a Spark-ignition Engine” ASME Paper 1982
- Alkidas, A.C. Puzinauskas, P.V. Peterson, R.C. “Combustion and Heat Transfer Studies in a Spark Ignited Multivalve Optical Engine” SAE Paper 900353 1990
- Bryanston-Cross, P. Burnett, M. Udrea, D.D. Marsh R. Timmerman, B.H. Starr, A. Estabon, J. “The Application of Data Fusion to a Multi Sensored Intelligent Engine.” IEE Colloquium on Intelligent and Self Validating Sensors 21st June 1999
- Enomoto, Y. Furuhama, S. Minakami, K. “Heat Loss to Combustion Chamber Walls of a 4-Stroke Gasoline Engine” JSME Paper 28 238 1985
- Harigaya, Y et al “Surface Temperature and Wall Heat Flux in a Spark-Ignition Engine Under Knocking Conditions” SAE Paper 891795 1989
- Hoag, K.L. “Measurements and Analysis of the Effects of Wall Temperatures on Instantaneous Heat Flux” SAE Paper 860312 1986
- Lim, E.P. 1998 Temperature and Heat Flux measurements in a Spark Ignition Engine Oxford University MSc Thesis
- Oldfield, M.L.G. Jones, T.V. Schultz, D.L. 1978 “On-Line Computer for Transient Turbine Cascade Instrumentation” IEEE Transaction on Aerospace and Electronic Systems AES-1
- Oldfield, M.L.G. 2000 “Guide1 to Impulse Response Heat Transfer Signal Processing: Version 2” OUEL Report 2233/2000
- Piccini, E. Guo, S.M. Jones, T.V. 2000 “The development of a new direct heat flux gauge for heat transfer facility” Meas. Sci. Techno. 11 2000 342 349
- Jones, T.V. Oldfield, M.L.G. Ainsworth, R.W. Arts, T. 1993 Transient-Cascade Testing Chapter 5 of Advanced Methods for Cascade Testing, AGARDOGRAPH 328, AGARD