Computational fluid dynamic modelling of NOx formation in diesel engine

S. S., Hoseini and G., Najafi and B., Ghobadian and H., Azimi-Nejadian and Hossein, Ahmadian (2020) Computational fluid dynamic modelling of NOx formation in diesel engine. In: IOP Conference Series: Materials Science and Engineering, 5th International Conference on Mechanical Engineering Research (ICMER 2019), 30-31 July 2019 , Kuantan, Malaysia. pp. 1-10., 788 (012067). ISSN 1757-8981 (Print), 1757-899X (Online)

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The purpose of this study is offering a numerical model to predict the NOx formation of a diesel engine. For this purpose, simulation of combustion and emissions of a diesel engine was performed using CFD FIRE commercial software. The simulation was performed for the condition of 900 rpm for engine speed, 200 bar cylinder pressure, and injection timing (15° CA BTDC). The difference between the experimental and numerical results was reported by about 3.2%. The result of the numerical simulation shown due to the non-homogeneous mixture of air and fuel in a diesel engine, the temperature distribution is not uniform and the temperature in some places reaches 2500 K. In areas with an equilibrium ratio (stoichiometry) and temperatures above 2000 K, nitrogen oxide is the highest. Also, the result shown areas with a temperature range between 1500 and 1900 K are more favorable areas for the formation of soot pollutant.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Diesel engine; Computational fluid dynamic; NOx; AVL FIRE; Combustion
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Faculty of Mechanical Engineering
Institute of Postgraduate Studies
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 20 Jun 2022 02:59
Last Modified: 20 Jun 2022 02:59
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