Analysis of the structure of the atomized fuel spray with marine diesel engine injector in the early stage of injection

Joanna Grochowalska; Piotr Jaworski; Łukasz Kapusta

doi:10.19206/ce-168394

Analysis of the structure of the atomized fuel spray with marine diesel engine injector in the early stage of injection

Abstract

This paper presents the results of the experimental research of the atomized fuel spray with the marine diesel engine injector in the constant volume chamber. The specificity of the phenomena occurring in the marine engine cylinder was the reason to use the optical visualisation method in the studies – the Mie scattering technique. This work presents an analysis of the influence of different geometry of outlet orifice and opening pressures of marine diesel injector on the macrostructure of the fuel spray. In the results, it was observed that the increased L/D ratio of the outlet orifice of the injector caused: an increase in the spray cone angle and a decrease in the spray tip penetration in the early stage of injection. Furthermore, it was defined that the characteristic of spray tip penetration over time was power, whereas the spray cone angle over time was a logarithmic function.

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Authors (3)

Joanna Grochowalska dr inż.
Piotr Jaworski
Łukasz Kapusta dr inż.
- Politechnika Warszawska, Instytut Techniki Cieplnej

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Category:

Articles

Type:

artykuły w czasopismach

Published in:

Combustion Engines no. 195, pages 97 - 103,
ISSN: 2300-9896

Language:

English

Publication year:

2023

Bibliographic description:

Grochowalska J., Jaworski P., Kapusta Ł.: Analysis of the structure of the atomized fuel spray with marine diesel engine injector in the early stage of injection// Combustion Engines -Vol. 195,iss. 4 (2023), s.97-103

DOI: