Year 2024

• Wpływ parametrów strugi paliwa wtryskiwanego do cylindra silnika okrętowego na początkową fazę rozpylania

  Publication

  • J. Grochowalska

  - Year 2024

  Przedmiotem rozprawy jest analiza procesu wtrysku oleju napędowego do cylindra silnika okrętowego z zapłonem samoczynnym i bezpośrednim wtryskiem paliwa. Analiza tego zagadnienia została przeprowadzona w aspekcie wpływu makro parametrów strugi na początkową fazę rozpylania oleju napędowego. Celem niniejszej pracy jest określenie wpływu współczynnika L/D (długość otworu/średnica) otworu wylotowego wtryskiwacza na zmianę charakterystyki...

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Year 2023

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

  Publication

  • J. Grochowalska
  • P. Jaworski
  • Ł. Kapusta

  - Combustion Engines - Year 2023

  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...

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Year 2022

• A new model of fuel spray shape at early stage of injection in a marine Diesel engine

  Publication

  • J. Grochowalska
  • P. Jaworski
  • Ł. J. Kapusta
  • J. Kowalski

  - INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW - Year 2022

  In the cylinders of a marine diesel engine, self-ignition occurs in very shortly time after the fuel injection into the combustion chamber. Therefore, the paper present was to develop a model of diesel fuel spray for the early stage of fuel spray for in marine diesel engine. There were taken into consideration the main aspects technical such as nozzle diameter of marine engine injector and backpressure in combustion chamber. In...

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Year 2019

• Analysis of the macrostructure of the fuel spray atomized with marine engine injector

  Publication

  • J. Grochowalska

  - Combustion Engines - Year 2019

  One of the main problem influencing the combustion process in the cylinder of the marine engine is an fuel spray phenomena. The parameters describing the shape of the fuel spray are named macro parameters. This article presents the research results of the macrostructure parameters of the fuel spray atomized with the marine engine injector. The research were carried out by optical visualization measurement method of Mie scattering....

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