This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimization of a Four Stroke Engine by Means of Experimental and 1-D Numerical Analysis
Technical Paper
2000-01-0566
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
In the present investigation, a parametric study of the geometric characteristics of a two-cylinder four-stroke gasoline engine was carried out. Engine power, torque, specific consumption, engine efficiency, in-cylinder pressure for both the cylinders and pressure along the intake and exhaust manifolds at different positions were experimentally measured for engine speeds ranging from 5000 to 9500 rpm. All measurements were made under steady state conditions and full load.
Engine characteristics were calculated by means of a 1-D model, which was used to calculate wave propagation in the intake and exhaust manifolds. A zero dimensional model was used to account for the in-cylinder phenomena. In the 1-D model the effects of pipe curvature, restriction geometry, gas friction, and heat transfer to the manifolds walls were considered. Numerical results showed good agreement with the measurements over the investigated range of operating conditions.
Recommended Content
Authors
Citation
De Risi, A., Zecca, R., and Laforgia, D., "Optimization of a Four Stroke Engine by Means of Experimental and 1-D Numerical Analysis," SAE Technical Paper 2000-01-0566, 2000, https://doi.org/10.4271/2000-01-0566.Also In
References
- Heywood J. B. “Internal Combustion Engine Fundamentals” McGraw - Hill 1988 0-07-100499-8
- Peters A. “Analyse instationaerer Stroemungsvorgaenge beim Ladungswechsel eines Mehrzylinder-Ottomotors und eines aufgeladenen Dieselmotors” Doktorarbeit Ruhr-Universitaet Bochum Bochum 1978
- Box, G. E. P. Hunter, W. G. Hunter J. S. “Statistic for Experimenters” John Wiley and Sons New York, NY 1978
- Goldberg, G. E. “Genetic Algorithms in Search, Optimization and Machine Learning” Addison-Wesley Reading, MA 1989
- De Risi A. Laforgia D. “Modelling Real Diesel Engine Combustion Process and NO x Emissions” Engine Modeling 23 ASME 1995 89 99
- Silvestri P. Gambarotta A. Fossa M. “Studio sulle Caratteristiche di Efflusso nelle Giunzioni del Sistema di Ricambio della Carica dei Motori a Combustione Interna” MIS-MAC Roma 1998
- Vibe I. I. “Brennverlauf und Kreisprozess von Verbrennungsmotoren” Verlag Technik Berlin 1970
- Woschni G. “A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in Internal Combustion Engines” SAE 6700931
- Zapf M. “Beitrag zur Untersuchung des Waermeuebergangs Waehrend des Ladungswechsels in einem Viertakt-Dieselmotor” 1969 30
- Pivec R. Sams T. Wimmer A. “Waermeuebergang im Ein- und Auslasssystem” 59 1998 10