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The Effect of Various Dynamic, Thermodynamic and Design Parameters on the Performance of a Turbocharged Diesel Engine Operating under Transient Load Conditions
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 08, 2004 by SAE International in United States
Annotation ability available
Thermodynamic, dynamic and design parameters have a significant and often conflicting impact on the transient response of a compression ignition engine. Knowing the contribution of each parameter on transient operation could direct the designer to the appropriate measures for better engine performance. To this aim an explicit simulation program developed is used to study the performance of a turbocharged diesel engine operating under transient load conditions. The simulation developed, based on the filling and emptying approach, provides various innovations as follows: Detailed analysis of thermodynamic and dynamic differential equations, on a degree crank angle basis, accounting for the continuously changing nature of transient operation, analysis of transient mechanical friction, and also a detailed mathematical simulation of the fuel pump. Each equation in the model is solved separately for every cylinder of the 6-cylinder diesel engine considered. The model is validated against experimental data for various load changes.
The effect of several dynamic, thermodynamic and design parameters is studied, i.e. load schedule (type, and duration of load applied), turbocharger mass moment of inertia, exhaust manifold volume and configuration, cylinder wall temperature, aftercooler effectiveness as well as an interesting case of a malfunctioning fuel pump.
Explicit diagrams are given to show how, after an increase in load, each parameter examined affects the engine speed response, as well as other properties of the engine and turbocharger such as fuel pump rack position, boost pressure and turbocharger speed.
It is shown that certain parameters, such as the type of connected loading, the turbocharger inertia, a damaged fuel pump and the exhaust manifold volume, can have a significant effect on the engine and turbocharger transient performance. However others, such as the cylinder wall temperature, the aftercooler effectiveness and the exhaust manifold configuration have a less important effect as regards transient response and final equilibrium conditions.
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CitationRakopoulos, C., Giakoumis, E., Hountalas, D., and Rakopoulos, D., "The Effect of Various Dynamic, Thermodynamic and Design Parameters on the Performance of a Turbocharged Diesel Engine Operating under Transient Load Conditions," SAE Technical Paper 2004-01-0926, 2004, https://doi.org/10.4271/2004-01-0926.
Modelling: Diesel Engines, Multi-Dimensional Engine, and Vehicle and Engine Systems
Number: SP-1826 ; Published: 2004-03-08
Number: SP-1826 ; Published: 2004-03-08
- Winterbone, D.E., Benson, R.S., Closs, G.D. and Mortimer, A.G., “A comparison between experimental and analytical transient test results for a turbocharged diesel engine”, Proceedings of the Institution of Mechanical Engineers, Vol. 190, 267-276, 1976.
- Rackmil, C.I. and Blumberg, P.N., “Dynamic simulation of a turbocharged intercooled diesel engine with rack-actuated electronic fuel control system”, SAE paper No 890394, 1989.
- Watson, N. and Marzouk, M., “A non-linear digital simulation of turbocharged diesel engines under transient conditions”, SAE paper No 770123, 1977.
- Watson, N., “Transient performance simulation and analysis of turbocharged diesel engines”, SAE paper No 810338, 1981.
- Zellbeck, H. and Woschni, G., “Rechnerische Untersuchung des dynamischen Betriebs-verhaltens aufgeladener Dieselmotoren”, Motor-Technische Zeitschrift (German), Vol. 44, 81-86, 1983.
- Horlock, J.H. and Winterbone, D.E., “The Thermodynamics and Gas Dynamics of Internal Combustion Engines, Vol. II”, Clarendon press, Oxford, 1986.
- Qiao, J., Dent, J.C. and Garner, C.P., “Diesel engine modelling under steady and transient conditions using a transputer based concurrent computer”, SAE paper No 922226, 1992.
- Bazari, Z., “Diesel exhaust emissions prediction under transient operating conditions”, SAE paper No 940666, 1994.
- Murayama, T., Miyamoto, N., Tsuda, T., Suzuki, M. and Hasegawa, S., “Combustion behaviors under accelerating operation of an IDI diesel engine”, SAE paper No 800966, 1980.
- Winterbone, D.E. and Tennant, D.W.H., “The variation of friction and combustion rates during diesel engine transients”, SAE paper No 810339, 1981.
- Jiang, Q. and van Gerpen, J.H., “Prediction of diesel engine particulate emission during transient cycles”, SAE paper No 920466, 1992.
- Filipi, Z., Wang, Y. and Assanis, D., “Effect of variable geometry turbine (vgt) on diesel engine and vehicle system transient response”, SAE paper No 2001-01-1247.
- Arcoumanis, C., Megaritis, A. and Bazari, Z., “Analysis of transient exhaust emissions in a turbocharged vehicle diesel engine”, Institution of Mechanical Engineers, Conference on Turbocharging and Turbochargers, London, U.K., Paper C484/038, pp. 71-81, 1994.
- Assanis, D.N., Filipi, Z., Fiveland, S. and Syrimis, M., “A methodology for cycle-by-cycle transient heat release analysis in a turbocharged direct-injection diesel engine”, SAE paper No 2000-01-1185.
- Ciesla, C., Keribar, R. and Morel, T., “Engine/powertrain/vehicle modeling tool applicable to all stages of the design process”, SAE paper No 2000-01-0934.
- Rakopoulos, C.D. and Giakoumis, E.G., “Simulation and analysis of a naturally aspirated, indirect injection diesel engine under transient conditions comprising the effect of various dynamic and thermodynamic parameters”, Energy Conversion and Management, Vol. 39, pp. 465-484, 1998.
- Rakopoulos, C.D., Giakoumis, E.G. and Hountalas, D.T., “A simulation analysis of the effect of governor technical characteristics and type on the transient performance of a naturally aspirated IDI diesel engine”, SAE paper No 970633, SAE Transactions, Journal of Engines, Vol. 106, pp. 905-922, 1997.
- Rakopoulos, C.D., Giakoumis, E.G. and Hountalas, D.T., “Experimental and simulation analysis of the transient operation of a turbocharged multi-cylinder IDI diesel engine”, Energy Research, Vol. 22, pp. 317-332, 1998.
- Benson, R.S. and Whitehouse, N.D., “Internal Combustion Engines”, Pergamon press, Oxford, 1979.
- Heywood, J.B., “Internal Combustion Engine Fundamentals”, McGraw-Hill, New York, 1988.
- Rakopoulos, C.D. and Hountalas, D.T., “Development and validation of a 3-D multi-zone combustion model for the prediction of DI diesel engines performance and pollutants emissions”, SAE paper No 981021, SAE Transactions, Journal of Engines, Vol. 107, pp. 1413-29, 1998.
- Rakopoulos, C.D. and Hountalas, D.T., “Development of new 3-D multi-zone combustion model for indirect injection diesel engines with a swirl type prechamber”, SAE paper No 2000-01-0587, SAE Transactions, Journal of Engines, Vol. 109, pp.718-733, 2000.
- Rakopoulos, C.D. and Giakoumis, E.G., “Simulation and exergy analysis of transient diesel engine operation”, Energy, Vol. 22, pp. 875-886, 1997.
- Whitehouse, N.D. and Way, R.G.B., “Rate of heat release in diesel engines and its correlation with fuel injection data”, Proceedings of the Institution of Mechanical Engineers, Vol. 184, Part 3J, pp. 17-27, 1969-70.
- Hiroyasu, H., Kadota, T. and Arai, M., “Development and use of a spray combustion modelling to predict diesel engine efficiency and pollutant emissions”, Bulletin JSME, Vol. 26, pp. 569-76, 1983.
- Annand, W.J.D., “Heat transfer in the cylinders of reciprocating internal combustion engines”, Proceedings of the Institution of Mechanical Engineers, Vol. 177, pp. 983-990, 1963.
- Rezeka, S.F. and Henein, N.A., “A new approach to evaluate instantaneous friction and its components in internal combustion engines”, SAE paper No 840179, 1984.
- Rakopoulos, C.D., Hountalas, D.T., Koutroubousis, A.P. and Zannis, T.C., “Application and evaluation of a detailed friction model on a DI diesel engine with extremely high peak combustion pressures”, SAE paper No 2002-01-0068, SAE Transactions, Journal of Engines, Vol. 111, pp. 308-321, 2002.
- Kouremenos, D.A., Rakopoulos, C.D., Hountalas, D.T. and Kotsiopoulos, P.N., “A simulation technique for the fuel injection system of diesel engines”, ASME-Winter Annual Meeting, Atlanta, Georgia, Proc. Advanced Energy Systems, Vol. 24, pp. 91-102, 1991.
- Watson, N. and Janota, M.S., “Turbocharging the Internal Combustion Engine”, MacMillan, London, 1982.