High quality multi-zone and 3d CFD model of combustion in marine diesel engine cylinder

• Autorzy: Cuper-Przybylska Dominika , Nguyen Van Nhanh , Cao Dao Nam , Kowalski Jerzy

Identyfikatory

DOI

10.2478/pomr-2023-0021

• Języki publikacji: EN

Abstrakty

EN

The paper presents a 3D model of the processes taking place in the cylinder of a large 4-stroke marine engine. The model is based on CFD calculations performed on the moving mesh. The modelling range includes the full duty cycle (720° crankshaft position) and the complete geometry of the cylinder with inlet and exhaust ducts. The input data, boundary conditions and validation data were obtained by direct measurements on the real object. Fuel injection characteristics were obtained by Mie scattering measurements in a fixed-volume chamber. The modelling results have been validated in terms of the pressure characteristics of the engine’s cylinder within the entire range of its loads. The mean error did not exceed 1.42% for the maximum combustion pressure and 1.13% for the MIP (Mean Indicated Pressure). The model was also positively validated in terms of the O2 and NOx content of the exhaust gas. The mean error in this case was 1.2% for NOx fractions in the exhaust gas and 0.4% for O2 fractions. The complete model data has been made available in the research data repository on an open access basis.

Słowa kluczowe

EN

CFD combustion model; large 4-stroke engine; diesel engine; emission; NOx concentration

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2023
• Tom: nr 2
• Strony: 61--67
• Opis fizyczny: Bibliogr. 44 poz., rys., tab.

Twórcy

autor

Cuper-Przybylska Dominika

• Central Office of Measures POLAND, Poland

• https://orcid.org/0000-0002-9240-1818

autor

Nguyen Van Nhanh

• Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam

• https://orcid.org/0000-0003-4241-3359

autor

Cao Dao Nam

• Institute of Mechanical Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam

• https://orcid.org/0000-0002-4641-8563

autor

Kowalski Jerzy

• Gdansk University of Technology, Poland

• https://orcid.org/0000-0002-2764-3765

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).