THERMAL SCIENCE

International Scientific Journal

Mohamed Bencherif

,

Tewfik Leftas

,

Nasreddine Larbes

NUMERICAL ANALYSIS OF INJECTION PARAMETERS INFLUENCE ON DIESEL ENGINE PERFORMANCES AND EMISSIONS CORRELATED BY MAXIMUM IN-CYLINDER PRESSURE

ABSTRACT
The present work deals with a numerical investigation on an experimental single cylinder direct injection Diesel engine. Calculations are carried out with Kiva3v2 code using multidimensional detailed chemistry. The study was carried out on predicted CO, and NOx emission levels by the engine cylinder before exhaust valve opening. Correlations proposed for predicted NO, CO, and NOx levels function of fuel, O2, N2 concentrations and the maximum in-cylinder pressure rather than temperature. Predicted values of averaged pressures, O2, CO, and CO2 levels in the exhaust manifold were validated by the measured ones for a set of five loads at 1500 rpm. CO, NO, and NOx concentrations at the exhaust obtained by calculations lies perfectly with measured values. Otherwise, numerical simulations lead us to analyze injection timing, duration and fuel amount injected effect on the engine performances, ignition delay, combustion duration as well as CO and NOx emission levels.
KEYWORDS
modeling, correlations, kiva3v2, CO, NOx, In-cylinder pressure, Injection parameters, Injection delay, Combustion duration
PAPER SUBMITTED: 2022-01-20
PAPER REVISED: 2022-09-01
PAPER ACCEPTED: 2022-12-07
PUBLISHED ONLINE: 2023-02-11
DOI REFERENCE: https://doi.org/10.2298/TSCI220120017B
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 2, PAGES [1479 - 1493]
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Numerical analysis of injection parameters influence on diesel engine performances and emissions correlated by maximum in-cylinder pressure

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence