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Determination of fuel atomization quality in compression ignition engines using acoustic emission signal

Klyus Oleh, Rajewski Przemysław, Lebedevas Sergeus, Olszowski Sławomir

Combustion Engines

2022

R. 61, nr 4

83--91

The analysis of fuel injection processes in diesel engines showed the convergence of physical parameters affecting the mean diameter of the Sauter SMD (selected as a spray quality parameter) of the atomized fuel droplets and the parameters of the acoustic signal emission originating from the spring waves accompanying the atomization process. In experimental studies, the laser diffraction method was used to measure the atomization quality with the Malvern Spraytec device. For the acoustic signal recording and processing there was used the measurement set with a Fujicera 1045S sensor. The correlation between the values of the Sauter diameter and the energy of the acoustic signal has been obtained on the basis of which a method has been developed to assess the quality of fuel atomization in compression ignition engines by measuring the acoustic signal recorded during the fuel injection process.

Evaluation of the suitability of synthetic polymer fuels in self-ignition engines

Klyus Oleh, Krause Paweł, Markov Vladimir A., Skarbek-Żabkin Anna, Sa Bowen

Combustion Engines

2019

R. 58, nr 3

129--134

The article presents a method for determining the quality of spraying a mixture of oil and synthetic fuels obtained from the processing of polymer materials. Laboratory tests of physical parameters of such a mixture were carried out, which made it possible to determine the limit values for the volume fraction of synthetic fuels. The method of determining the suitability of this type of fuel takes into account the criterion numbers Re and Oh, which include physical parameters such as viscosity, density, and surface tension. The experimental part concerning the distribution of droplets of injected fuel and determination of Sauter Mean Diameter using laser diffraction confirmed the usefulness of the developed method for the assessment of the possibility of using a mixture of petroleum-based and synthetic fuels in self-ignition engines.