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Experimental Characterization and Modelling of a Turbocharger Gasoline Engine Compressor By-Pass Valve in Transient Operation
Technical Paper
2015-24-2524
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
On actual gasoline turbocharged engines it is common to use a compressor by-pass valve in order to solve the compressor surge problem when the throttle pedal position is released and closes rapidly. The paper deals with a methodology based on experiments to measure the discharge coefficient of an integrated compressor by-pass valve, to understand the possible difference between the steady flow test bench and turbocharger test bench discharge coefficient measurements. To determine if there is some compressor outlet flow field influence due to compressor blades rotation that could modify the discharge coefficient measurement, compared to the steady flow test bench measurements, a fully instrumented turbocharger was used to measure the difference between steady flow test bench and turbocharger test bench discharge coefficients results. Effects of different boundary conditions on turbocharger test bench tests and how they affect the discharge coefficient measurement are also presented.
Furthermore, the measured compressor by-pass valve discharge coefficient on the steady flow test bench is used as input for an 1D model in order to verify or modify the compressor by-pass valve geometry design. The model is used to modify the compressor by-pass diameter and analyze the influence in the compressor behavior during a typical throttle pedal release situation.
The results should lead to design improvements and better understanding of these integrated compressor by-pass valves in order to avoid compressor surge in gasoline turbocharged engines during a throttle pedal release situation.
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Lujan, J., Pastor, J., Climent, H., and Rivas, M., "Experimental Characterization and Modelling of a Turbocharger Gasoline Engine Compressor By-Pass Valve in Transient Operation," SAE Technical Paper 2015-24-2524, 2015, https://doi.org/10.4271/2015-24-2524.Also In
References
- Flierl R. , Hofmann R. , Landerl C. , Mechler T. , Steyer H. Der neue BMW Vierzylinder- Ottomotor mit Valvetronic Motortechnische Zeitschrift 62 6 2001
- Galindo J. , Climent H. , Guardiola C. and Tiseira A. On the effect of pulsating flow on surge margin of small centrifugal compressors for automotive engines Exp. Ther. Fluid Sci. 33 1163 1171 2009
- Teng , C. , Pan , F. , Missaoui , J. , and Deraad , S. Flow Noises Associated with Integrated Compressor Anti-Surge Valve SAE Technical Paper 2011-01-1532 2011 10.4271/2011-01-1532
- Bozza , F. and De Bellis , V. Map-Based and 1D Simulation of a Turbocharger Compressor in Surging Operation SAE Int. J. Engines 4 2 2418 2433 2011 10.4271/2011-24-0126
- Daugherty R.L. and Franzini J.B. Fluid Mechanics 6th New York McGraw-Hill 338 349 1965
- Galindo J. , Serrano J.R. , Guardiola C. , Cervelló , C. Surge limit definition in a specific test bench for the characterization of automotive turbochargers Experimental Thermal and Fluid Science 30 449 462 2006
- Luján , J. , Bermúdez , V. , Serrano , J. , and Cervelló , C. Test Bench for Turbocharger Groups Characterization SAE Technical Paper 2002-01-0163 2002 10.4271/2002-01-0163
- Wiebe I. Halbempirische formel fuer die Verbrennungsgeschwindigkeit Moscow Verlag der Akademie der Wissenschaften der UdSSR 1967
- Lapuerta M. , Armas O. and Hernández J. Diagnostic of D. I. Diesel Combustion from In-Cylinder Pressure Signal by Estimation of Mean Thermodynamic Properties of the Gas Applied Thermal Engineering 19 513 529 1999
- Payri F. , Molina S. , Martín J. and Armas O. Influence of measurement errors and estimated parameters on combustion diagnosis Applied Thermal Engineering 26 2-3 226 236 2006
- Torregrosa A.J. , Galindo J. , Guardiola C. , and Varnier O. Combined Experimental and Modeling Methodology for Intake Line Evaluation in Turbocharged Diesel Engines International Journal of Automotive Technology 12 3 359 367 2011
- Payri F. , Reyes E. , and Galindo J. Analysis and modelling of the fluid-dynamic effects in branched exhaust junctions of ICE International Journal for Gas Turbine and Power: Transactions of the ASME 123 1 197 203 2001 10.1115/1.133998
- Galindo J. , Luján J.M. , Serrano J.R. , Dolz V. and Guilain S. Design of an exhaust manifold to improve transient performance of a high-speed turbocharged diesel engine Experimental Thermal and Fluid Science 28 863 875 2004 10.1016/j.expthermflusci.2004.01.003
- Payri F. , Benajes J. , Galindo J. , and Serrano J.R. Modelling of turbocharged diesel engines in transient operation. Part 2: Wave action models for calculating the transient operation in a high speed direct injection engine Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 479 493 2002 10.1243/09544070260137507
- Serrano J. , Climent H. , Dolz V. and Rivas M.E. Analysis of variable geometry turbine and variable valve timing combined potential in a GTDI engine using 1D simulation SIA congress Strasbourg, France 30 November 1 December 2011
- Luján , J. , Bermúdez , V. , Serrano , J. , and Cervelló , C. Test Bench for Turbocharger Groups Characterization SAE Technical Paper 2002-01-0163 2002 10.4271/2002-01-0163
- Galindo J. , Serrano J.R. , Climent H. and Tiseira A. Experiments and modelling of surge in small centrifugal compressor for automotive engines Experimental Thermal and Fluid Science 32 818 826 2008
- Lujan J.M. , Climent H. , Pla B. and Rivas M.E. 1D modelling methodology optimization for VVT using EGR in a SI gasoline turbocharged direct injection engine to reduce fuel consumption SIA congress Versailles, France 27 - 28 May 2015