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Fuel Film Temperature and Thickness Measurements on the Piston Crown of a Direct-Injection Spark-Ignition Engine
Technical Paper
2005-01-0649
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Fuel film temperature and thickness were measured on the piston crown of a DISI engine under both motored and fired conditions using the fiber-based laser-induced fluorescence method wherein a single fiber delivers the excitation light and collects the fluorescence. The fibers were installed in the piston crown of a Bowditch-type optical engine and exited via the mirror passage. The fuel used for the fuel film temperature measurement was a 2×10-6 M solution of BTBP in isooctane. The ratio of the fluorescence intensity at 515 to that at 532 nm was found to be directly, but not linearly, related to temperature when excited at 488 nm. Effects related to the solvent, solution aging and bleaching were investigated. The measured fuel film temperature was found to closely follow the piston crown metal temperature, which was measured with a thermocouple. A detailed analysis of the fiber-based laser-induced fluorescence technique was used to ascertain film thickness based on a single-point calibration. The calibration methodology also accounted for the effects of fuel film temperature. A 4% by volume solution of 2,3-hexanedione in isooctane was found to be a suitable choice for fuel film thickness measurement because it was verified to be co-evaporative. The fuel film thickness was found to be quite small, less than 10 μm, for both motored and fired conditions performed at the same piston temperature. The 2,3-hexanedione was found to leave a viscous residue on the piston crown, which carried over from cycle to cycle and limited the results.
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Citation
Park, S. and Ghandhi, J., "Fuel Film Temperature and Thickness Measurements on the Piston Crown of a Direct-Injection Spark-Ignition Engine," SAE Technical Paper 2005-01-0649, 2005, https://doi.org/10.4271/2005-01-0649.Also In
Combustion and Flow Diagnostics, and Fundamental Advances in Thermal and Fluid Sciences
Number: SP-1971; Published: 2005-04-11
Number: SP-1971; Published: 2005-04-11
References
- Kume, T. Iwamoto, Y. Iida, K. Murakami, M. Akishino, K. Ando, H. “Combustion Control Technologies for Direct Injection SI Engine,” SAE paper 960600 1996
- Iwamoto, Y. Noma, K. Nakayama, O. Yamauchi, T. Ando, H. “Development of Gasoline Direct Injection Engine,” SAE paper 970541 1997
- Harada, J. Tomita, T. Mizuno, H. Mashiki, Z. Ito, Y. “Development of Direct Injection Gasoline Engine,” SAE paper 970540 1997
- Takagi, Y. Itoh, T. Muranaka, S. Iiyama, A. Iwakiri, Y. Urushihara, T. Naitoh, K. “Simultaneous Attainment of Low Fuel Consumption, High Output Power and Low Exhaust Emissions in Direct Injection SI Engines,” SAE paper 980149 1998
- Cole, R. L. Poola, R. B. Sekar, R. “Exhaust Emissions of a Vehicle with a Gasoline Direct-Injection Engine,” SAE paper 982605 1998
- Stovell, C. Matthews, R. Johnson, B. E. Ng, H. Larsen, B. “Emissions and Fuel Economy of a 1998 Toyota with a Direct Injection Spark Ignition Engine,” SAE paper 1999-01-1527 1999
- Hudak, E. B. Ghandhi, J. B. “Time-Resolved Emission Sampling in a Direct-Injection Engine,” SAE paper 1999-01-3309 1999
- Casarella, M. V. Ghandhi, J. B. “Emission Formation Mechanisms in a Two-Stroke Direct-Injection Engine,” SAE paper 982697 1998
- Stanglmaier, R. H. Li, J. Matthews, R. D. “The Effect of In-Cylinder Wall Wetting Location on the HC Emissions from SI Engines,” SAE paper 1999-01-0502 1999
- Alger, T. Huang, Y. Hall, M. Matthews, R. D. “Liquid Film Evaporation Off the Piston of a Direct Injection Gasoline Engine,” SAE paper 2001-01-1204 2001
- Stevens, E. Steeper, R. “Piston Wetting in an Optical DISI Engine: Fuel Films, Pool Fires, and Soot Generation,” SAE paper 2001-01-1203 2001
- Zhengbai, L. Jingwei, Z. Yueshang, L. “Experimental Investigation of Film-Space Atomization Combustion in D.I. Diesel Engines,” SAE paper 901578 1990
- Drake, M. C. Fansler, T. D. Solomon, A. S. Szekely G. A., Jr. “Piston Fuel Films as a Source of Smoke and Hydrocarbon Emissions from a Wall-Controlled Spark-Ignited Direct-Injection Engine,” SAE Paper 2003-01-0547 2003
- Almkvist, G. Denbratt, I. “Measurements of Fuel Film Thickness in the Inlet Port of an S.I. Engine by Laser Induced Fluorescence,” SAE paper 952483 1995
- Hentschel, W. Grote, A. Langer, O. “Measurement of Wall Film Thickness in the Intake Manifold of a Standard Production SI Engine by a Spectroscopic Technique,” SAE paper 972832 1997
- Han, D. Steeper, R. R. “Examination of Iso-octane/Ketone Mixtures for Quantitative LIF Measurements in a DISI Engine,” SAE Paper 2002-01-0837 2002
- Hochgreb, S “Liquid Fuel Impingement on the Piston Bowl of a Direct-Injection, Spark-Ignited (DISI) Engine under Stratified Operation,” SAE paper 2001-01-3646 2001
- Lin, M-T Sick, V. “Is Toluene a Suitable Tracer for Fuel Film Measurements?” SAE paper 2004-01-1355 2004
- Hoult, D. P. Lux, J. P. Wong, V. W. “Calibration of Laser Fluorescence Measurements of Lubricant Film Thickness in Engines,” SAE paper 881587 1988
- Richardson, D. E. Borman, G. L “Using Fiber Optics and Laser Fluorescence for Measuring Thin Oil Films with Application to Engines,” SAE paper 912388 1991
- Ostroski, G. M. “The Use of a Dual-Fiber Probe and the Laser-Induced Fluorescence Technique to Study Oil Consumption in a Diesel Engine,” University of Wisconsin-Madison 1998
- Ostroski, G.M Ghandhi, J.B. “Development of a Dual Fiber Probe for the Investigation of Oil Transport and Consumption,” ASME Spring ICE Meeting Columbus, IN 1999
- Ghandhi, J. B. “Single- and Dual-fiber Fluorescence Probes: Application to Oil-film Measurements in an Internal Combustion Engine,” Applied Optics 39 30 5456 5464 2000
- Johnen, T. Haug, M. “Spray Formation Observation and Fuel Film Development Measurements in the Intake of a Spark Ignition Engine,” SAE paper 950511 1995
- Le Coz, J. F. Baritaud, T. “Application of Laser Induced Fluorescence for Measuring the Thickness of Evaporating Gasoline Liquid Films,” Proceedings of the 7 th International Symposium Lisbon, Portugal 11-14 July 1994
- Ghandhi, J. B. Felton, P. G. “On the Fluorescent Behavior of Ketones at High Temperatures,” Experiments in Fluids 21 143 144 1996
- Schrum, K. F. Williams, A. M. Haerther, S. A. Ben-Amotz, D. “Molecular Fluorescence Thermometry,” Analytical Chemistry 66 17 2788 2790 1994
- Bai, F. Melton, L. A. “High-Temperature, Oxygen-Resistant Molecular Fluorescence Thermometers,” Applied Spectroscopy 51 9 1276 1280 1997
- Park, Soochan “Fuel Film Temperature and Thickness Measurements on the Piston Crown of a Direct-Injection Spark-Ignition Engine,” University of Wisconsin-Madison 2003
- Strand, T. E. “Experimental Investigation of Bulk Flame Quenching in a Direct-Injection Spark Ignition Engine,” University of Wisconsin-Madison 2001
- B. Deschamps, B. Snyder, R. Baritaud, T. “Effect of Flow and Gasoline Stratification on Combustion in a 4-Valve SI Engine,” SAE Paper 941993 1994
- Richtol, H. H. Klappmeier, F. H. “Luminescence and Energy Transfer in Some Aliphatic α-Diketones,” The Journal of Chemical Physics 44 4 1966