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Thermo-Fluid Dynamic Modeling and Experimental Investigation of a Turbocharged Common Rail DI Diesel Engine
Technical Paper
2005-01-0689
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper describes the results of a parallel 1D thermo-fluid dynamic simulation and experimental investigation of a DI turbocharged Diesel engine. The attention has been focused on the overall engine performances (air flow, torque, power, fuel consumption) as well as on the emissions (NO and particulate) along the after-treatment system, which presents a particulate filter.
The 1D research code GASDYN for the simulation of the whole engine system has been enhanced by the introduction of a multi-zone quasi-dimensional combustion model for direct injection Diesel engines. The effect of multiple injections is taken into account (pilot and main injection). The prediction of NO and soot has been carried out respectively by means of a super-extended Zeldovich mechanism and by the Hiroyasu kinetic approach.
Moreover, a 1D model for the calculation of the filtration process occurring in the particulate trap has been embedded in the numerical model, to predict the fluid dynamic behavior of the DPF. The fluid-dynamic model for the trap is based on the assumption that the pressure drop, due to the Darcian flow, can be described one-dimensionally by an equivalent friction process.
An experimental investigation has been carried out on a 1.9L JTD Fiat-GM Powertrain Diesel engine, to study the behavior of the DPF under different operating conditions, in order to provide a large set of experimental data for the simulation code validation.
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D'Errico, G., Montenegro, G., Onorati, A., Merola, S. et al., "Thermo-Fluid Dynamic Modeling and Experimental Investigation of a Turbocharged Common Rail DI Diesel Engine," SAE Technical Paper 2005-01-0689, 2005, https://doi.org/10.4271/2005-01-0689.Also In
References
- ONORATI A. FERRARI G. D'ERRICO G. MONTENEGRO G. The Prediction of 1D Unsteady Flows in the Exhaust System of a S.I. Engine Including Chemical Reactions in the Gas and Solid Phase SAE paper n. 2002-01-0003 2002 SAE Transactions, Journal of Engines 2003
- ONORATI A. FERRARI G. D'ERRICO G. Secondary Air Injection in the Exhaust After-Treatment System of S.I. Engines: 1D Fluid Dynamic Modeling and Experimental Investigation SAE paper n. 2003-01-0366 2003 SAE Transactions, Journal of Engines 2004
- MONTENEGRO G. FERRARI G. ONORATI A. 1D Computational Model for the Prediction of the Thermo-Fluid Dynamic Behavior of Diesel Particulate Filters THIESEL 2004 Conference Valencia (Spain) 7-10 September 2004
- D'ERRICO G. FERRARI G. ONORATI A. CERRI T. Modeling the Pollutant Emissions from a S.I. Engine SAE Int. Congress & Exp. Detroit, Michigan paper n. 2002-01-0006 2002 SAE Transactions, Journal of Fuel and Lubricants 2003
- ONORATI A. FERRARI G. MONTENEGRO G. CARACENI A. PALLOTTI P. Prediction of S.I. Engine Emissions during an ECE Driving Cycle via Integrated Thermo-Fluid Dynamic Simulation SAE Int. Congress & Exp. Detroit, Michigan paper n. 2004-01-1001 2004
- WINTERBONE D. E. PEARSON R. J. Theory of Engine Manifolds Design Professional Engineering Publishing London 2000
- PEARSON R. J. WINTERBONE D. E. Calculating the Effects of Variations in Composition on Wave Propagation in Gases Int. J. Mech. Sci. 35 517 537 1993
- ONORATI A. FERRARI G. Modeling of 1-D Unsteady Flows in I.C. Engine Pipe Systems: Numerical Methods and Transport of Chemical Species SAE paper n. 980782 1998 SAE Transactions, Journal of Engines 1999
- HEYWOOD J. B. Internal Combustion Engine Fundamentals Mc Graw Hill 1998
- JUNG D. ASSANIS D. N. Multi-zone DI Diesel Spray Combustion Model for Cycle Simulation Studies of Engine Performance and Emissions SAE Paper 2002-01-1246 2001
- LEVICH V. G. Physicochemical Hydrodynamics Prentice-Hall Inc. Englewood cliffs, New Jersey 639 650 1962
- HIROYASU H. ARAI M. Fuel Spray Penetration and Spray Angle of Diesel Engines Trans. of JSAE 21 5 11 1980
- HIROYASU H. ARAI M. TABATA M. Empirical Equations for the Sauter Mean Diameter of a Diesel Spray SAE Paper 890464 1989
- HOUNTALAS D. T. KOUREMENOS D. A. PARIOTIS E. G. SCHWARZ V. BINDER K. B. Using a Phenomenological Multi-Zone to Investigate the Effect of injection Rate Shaping on Performance and Pollutants of a DI Heavy Duty Diesel Engine SAE Int. Congress & Exp. Detroit, Michigan paper 2002-01-0074 4-7 March 2002
- RANZ W. E. MARSHALL W. R. Evaporation from Drops Chem. Eng. Prog. 48 4 173 180 1952
- WAKILLI M. M UYEAHRA O. A. MYERS P. S. Theorical Investigation of Heating up Period of Injected Fuel Droplets Vaporizing in Air NACA TN 3179 1954
- WOSCHNI G. Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine SAE paper 670931 1967
- ERICKSONN W. D. PROBHU R. K Rapid Computation of Equilibrium Composition: an Application to Hydrocarbon Combustion A.I.Ch.E. Journal 32 7 July 1986
- HIROYASU H. KADOTA T. ARAI M. Development an Use of a Spray Combustion Modeling to Predict Diesel Engine Efficiency and Pollutant Emission Bulletin of the JSME 26 214 569 575 1983
- http://www.dieselnet.com/calculator/smoke1.html
- MUNTEN G. G. A Theorethical Model for the Correlation of Smoke Number to Dry Particulate Concentration in Diesel Rxhaust SAE paper n. 1999-01-0515 1999
- MASOUDI M. Hydrodynamics of Diesel Particulate Filters SAE paper, 2002-01-1016 2002
- KOSTANDOPOULOS A. G. SKAPERDAS E. MASOUDI M. Microstructural Properties of Soot Deposit in Diesel Particulate Traps SAE paper, 2002-01-1015 2002
- KOSTANDOPOULOS A. G. JOHNSON J.H. Wall-Flow Diesel Particulate Filters:Their Pressure Drop and Collection Efficiency paper n. 890405 SAE Transaction, Journal of Engines 1990
- JOHNSON J.H. GADDE S.B. A Computational Model Describing the Performance of a Ceramic Diesel Particulate Trap in Steady-State Operation and Over a Transient Cycle SAE paper n. 1999-01-0465 1999