The theoretical investigation on influence the fuel spray geometry on the combustion and emission characteristic of the marine diesel engine

• Autorzy: Kowalski J.

Identyfikatory

DOI

10.19206/CE-2017-218

• Języki publikacji: EN

Abstrakty

EN

The paper presents an analysis of the influence of the fuel spray geometry on the combustion and emission characteristic of the marine 4-stroke Diesel engine. Presented analysis was prepared based on computational fluid dynamic model (CFD). Initial and boundary conditions of the model as well as data used to model validation were collected during the laboratory study. Calculations were conducted for two different fuel injectors with changed nozzle holes diameters, the number of nozzle holes and the angle between holes axis. The increase of the fuel nozzle holes diameter causes the decrease of the fuel spray tip penetration, but simultaneously the decrease of holes number causes that auto-ignition delay is not changed. The increase of the angle between holes axis from 150° to 158° causes fuel ingintion near cylinder head wall. Result of this is the increase of CO fraction. The deterioration of fuel combustion causes the decrease of NOx mass fraction in the cylinder also.

Słowa kluczowe

EN

marine engine; Computational Fluid Dynamics; CFD; combustion model; fuel injection; emission

PL

silnik okrętowy; obliczeniowa mechanika płynów; model spalania; wtryskiwacz paliwa; emisja

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2017
• Tom: R. 56, nr 2
• Strony: 101--107
• Opis fizyczny: Bibliogr. 26 poz., wykr.

Twórcy

autor

Kowalski J.

• Faculty of Marine Engineering at Gdynia Maritime University

Bibliografia

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