Optimization of a Four Stroke Engine by Means of Experimental and 1-D Numerical Analysis 2000-01-0566
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.
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. Download Citation
Author(s):
Arturo De Risi, Raffaele Zecca, Domenico Laforgia
Affiliated:
Università di Lecce
Pages: 10
Event:
SAE 2000 World Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Modeling for Sl Engines-SP-1511
Related Topics:
Engine efficiency
Exhaust manifolds
Heat transfer
Engine cylinders
Manifolds
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