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Steady-State Local Heat Flux Measurements in a Straight Pipe Extension of an Exhaust Port of a Spark Ignition Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 29, 2007 by SAE International in United States
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Experiments were carried out on a straight pipe extension of an exhaust port of a multi-cylinder, spark-ignition engine to investigate the axial variation of the steady-state surface heat transfer. Local, steady-state, surface heat flux measurements were made at five different stations on the test section. Based on an optimization procedure developed in this study, the heat-flux measurements obtained for axial distances x / D > 2, were found to be correlated very well (R2 = 0.95) by an equation in the form of an entrance length correction, which is a function solely of x / D, multiplied by the Sieder-Tate convective heat transfer correlation; a correlation valid for fully-developed, steady-state, turbulent, pipe flows. Most importantly, this paper provides strong evidence that the observed heat transfer augmentation in the engine exhaust system is due solely to entrance effects and not due to flow fluctuations, which was the accepted cause.
CitationBalzan, N., Sangeorzan, B., and Alkidas, A., "Steady-State Local Heat Flux Measurements in a Straight Pipe Extension of an Exhaust Port of a Spark Ignition Engine," SAE Technical Paper 2007-01-3990, 2007, https://doi.org/10.4271/2007-01-3990.
- Rush, J. H., “Exhaust Port Heat Rejection in a Piston Engine: A Preliminary Report,” SAE Paper. 760766, 1976.
- Hires, S. D., and Pochmara, G. L., “An Analytical Study of Exhaust Gas Heat Loss in a Piston Engine Exhaust Port,” SAE Paper 760767, 1976.
- Caton, J. A., and Heywood, J. B., “An Experimental and Analytical Study of Heat Transfer in an Engine Exhaust Port,” Int. J. Heat Mass Transfer, 24, pp 581-595, 1981.
- Malchow, G. L., Sorenson, S. C., Buckius, R. O., “Heat Transfer in the Straight Section of an Exhaust Port of a Spark Ignition Engine,” SAE Paper 790309, 1979.
- Meisner, S., and Sorenson, S. C., “Computer Simulation of Intake and Exhaust Manifold Flow and Heat Transfer,” SAE Paper 860242, 1986.
- Farrugia, M., Alkidas, A. C., and Sangeorzan, B. P., “Cycle-Averaged Heat Flux Measurements in a Straight-Pipe Extension of the Exhaust Port of a S.I. Engine,” SAE Paper.2006-01-1033, 2006.
- Wendland, D. W., “Automobile Exhaust-System Steady-State Heat Transfer,” 1993 Vehicle Thermal Management Systems Conference Proceedings (SAE P-263), Paper 931085, pp. 125-139, 1993.
- Yongsheng, H., Battiston, P. A., and Alkidas, A. C., “Thermal Studies in the Exhaust Manifold of a Turbocharged V6 Diesel Engine Operating Under Steady-State Conditions,” SAE Paper 2006-01-0688, 2006.
- Alkidas, A. C., Battiston, P. A., and Kapparos, D. J., “Thermal Studies in the Exhaust System of a Diesel-Powered Light-Duty Vehicle,” SAE Paper.2004-01-0050, 2004.
- Battiston, P. A., Alkidas, A. C., and Kapparos, D. J., “Temperature and Heat Transfer Measurements in the Exhaust System of a Diesel-Powered Light-Duty Vehicle,” IMechE Paper No C599/100/2003, 2003.
- Moore, W., and Myers, J. P., “An Experimental and Analytical Heat Transfer Study of Takedown Pipes to Lower Cold Start HC Emissions,” IMechE, Paper C496/085/95, 1995.
- Shayler, P. J., Hayden, D. J., and Ma, T, “Exhaust System Heat Transfer and Catalytic Converter Performance,” SAE Paper 1999-01-0453, 1999.
- Farrugia, M., “Transient Surface Heat Flux Measurements in a Straight Pipe Extension of the Exhaust Port of a Spark Ignition Engine,” PhD Dissertation, Department of Mechanical Engineering, Oakland University, Rochester MI, 2005.
- Sieder, E. N. and Tate, C. E., Heat Transfer and Pressure Drop of Liquids in Tubes, Ind. Eng. Chem., vol. 28, pp 1429, 1936.
- Touloukian, Y. S., Master Index to Materials and Properties, IFI/Plenum, New York, Vol 1, pp1164-1173, 1979.
- Balzan, N., “Steady-State Local Heat Flux Measurements in a Straight Pipe Extension of an Exhaust Port of a Spark Ignition Engine,” Master's Thesis, Department of Mechanical Engineering, Oakland University, Rochester MI, 2007.
- Polovina, D. D., “A Thermal Model for an Engine Exhaust Gas Thermocouple: Steady-State and Cycle Resolved,” Master's Thesis, Department of Mechanical Engineering, Oakland University, Rochester MI, 2006.
- Whitaker, S., “Forced Convection Heat-Transfer Correlations for Flow in Pipes, Past Flat Plates, Single Cylinders, Single Spheres, and Flow in Packed Bids and Tube Bundles,” AIChE J., vol. 18, pp 361, 1972.
- Heywood, J. B., Internal Combustion Engine Fundamentals, McGraw-Hill, ISBN 0-07-100499-8, New York, Sections 4.6-4.9, 1988.
- Boelter, L. M. K., Young, G., Iverson, H. W., “An Investigation of Aircraft Heaters XXVII - Distribution of Heat-Transfer Rate in the Entrance Section of a Circular Tube,” NACA TN 1451, 1948.
- Benajes, J., Torregrosa, A. and Reyes, M. “Heat Transfer Model for I.C. Engine Exhaust Manifolds,” Proc. Seminair Eurotherm 15 “Transferts de Chaleur dans le Moteurs a Combustion Interne”, Tolouse, 1991.
- Payri, F., Reyes, E. and Serrano J.R., “A Model for Load Transients of Turbocharged Diesel Engines,” SAE Paper 1999-01-0225, 1999.
- Galindo, J., Luján, J. M., Serrano, J. M., Dolz, V. and Guilain, S., “Description of a Heat Transfer Model Suitable to Calculate Transient Process of Turbocharged Diesel Engines with One-Dimensional Gas-Dynamic Codes,” Applied Thermal Engineering 26, 66-76, 2006.