Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine
This article presents research results on mechanically generated oil mists. The research was carried out for oil mixtures for the Agip/Eni Cladium 120 SAE 40 API CF oil for industrial and marine engines diluted with diesel oil Orlen Efecta Diesel Bio at diesel oil concentrations of 2%, 5%, 10%, 20%,...
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| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/9/3915 |
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| author | Leszek Chybowski Marcin Szczepanek Katarzyna Gawdzińska Oleh Klyus |
| author_facet | Leszek Chybowski Marcin Szczepanek Katarzyna Gawdzińska Oleh Klyus |
| author_sort | Leszek Chybowski |
| collection | DOAJ |
| description | This article presents research results on mechanically generated oil mists. The research was carried out for oil mixtures for the Agip/Eni Cladium 120 SAE 40 API CF oil for industrial and marine engines diluted with diesel oil Orlen Efecta Diesel Bio at diesel oil concentrations of 2%, 5%, 10%, 20%, and 50% m/m. Pure lubricating oil and pure diesel oil were also tested. Droplet size distributions were determined for the reference moment at which residual discrepancies <i>R</i> between the measurement data and the sprayed pure diesel oil calculation model obtained the lowest value. For mechanically generated oil mists, the light transmission coefficient through the oil mist <i>T</i>, the specific surface area of the oil mist <i>SSA</i>, and the volumetric share of drops <i>D<sub>V</sub></i>(<i>V</i>%) for 10%, 50%, and 90% of the total volume of the generated oil mist were determined. The span of the volumetric distributions of droplet sizes <i>SPAN</i>, Sauter mean diameter <i>D</i><sub>[3,2]</sub>, De Brouckere mean diameter <i>D</i><sub>[4,3]</sub>, the volumetric and mass percentage of droplets with diameters ≤5 μm (diameters necessary for a crankcase explosion), the minimum difference between the measurement results, and the calculation model used by the residual error measuring device were determined. The best fit in each measurement cycle (the smallest <i>R</i> value was analyzed. For specific indicators, correlations with diesel oil levels in the mixture were determined using the Pearson <i>r<sub>XY</sub></i> linear correlation coefficient. Those results confirmed an increase in smaller-diameter droplets, an increase in the number of droplets with diameters up to 5 μm, and an increase in the span of the oil mist droplet diameter distribution with additional diesel oil. This confirmed a relationship between an increased lubricating oil dilution and an increased explosion risk in the crankcase. |
| first_indexed | 2024-03-11T04:18:49Z |
| format | Article |
| id | doaj.art-081ae1992f7f4672ab6fea42922175d1 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T04:18:49Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-081ae1992f7f4672ab6fea42922175d12023-11-17T22:53:27ZengMDPI AGEnergies1996-10732023-05-01169391510.3390/en16093915Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine EngineLeszek Chybowski0Marcin Szczepanek1Katarzyna Gawdzińska2Oleh Klyus3Department of Machine Construction and Materials, Faculty of Marine Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, PolandDepartment of Power Engineering, Faculty of Marine Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, PolandDepartment of Machine Construction and Materials, Faculty of Marine Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, PolandDepartment of Marine Power Plants, Faculty of Marine Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, PolandThis article presents research results on mechanically generated oil mists. The research was carried out for oil mixtures for the Agip/Eni Cladium 120 SAE 40 API CF oil for industrial and marine engines diluted with diesel oil Orlen Efecta Diesel Bio at diesel oil concentrations of 2%, 5%, 10%, 20%, and 50% m/m. Pure lubricating oil and pure diesel oil were also tested. Droplet size distributions were determined for the reference moment at which residual discrepancies <i>R</i> between the measurement data and the sprayed pure diesel oil calculation model obtained the lowest value. For mechanically generated oil mists, the light transmission coefficient through the oil mist <i>T</i>, the specific surface area of the oil mist <i>SSA</i>, and the volumetric share of drops <i>D<sub>V</sub></i>(<i>V</i>%) for 10%, 50%, and 90% of the total volume of the generated oil mist were determined. The span of the volumetric distributions of droplet sizes <i>SPAN</i>, Sauter mean diameter <i>D</i><sub>[3,2]</sub>, De Brouckere mean diameter <i>D</i><sub>[4,3]</sub>, the volumetric and mass percentage of droplets with diameters ≤5 μm (diameters necessary for a crankcase explosion), the minimum difference between the measurement results, and the calculation model used by the residual error measuring device were determined. The best fit in each measurement cycle (the smallest <i>R</i> value was analyzed. For specific indicators, correlations with diesel oil levels in the mixture were determined using the Pearson <i>r<sub>XY</sub></i> linear correlation coefficient. Those results confirmed an increase in smaller-diameter droplets, an increase in the number of droplets with diameters up to 5 μm, and an increase in the span of the oil mist droplet diameter distribution with additional diesel oil. This confirmed a relationship between an increased lubricating oil dilution and an increased explosion risk in the crankcase.https://www.mdpi.com/1996-1073/16/9/3915crankcase explosionlubricating oil propertiesoil dilution with distillation fuelmechanical spray generationlaser diffractionoil mist particle distribution |
| spellingShingle | Leszek Chybowski Marcin Szczepanek Katarzyna Gawdzińska Oleh Klyus Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine Energies crankcase explosion lubricating oil properties oil dilution with distillation fuel mechanical spray generation laser diffraction oil mist particle distribution |
| title | Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine |
| title_full | Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine |
| title_fullStr | Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine |
| title_full_unstemmed | Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine |
| title_short | Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine |
| title_sort | particles morphology of mechanically generated oil mist mixtures of sae 40 grade lubricating oil with diesel oil in the context of explosion risk in the crankcase of a marine engine |
| topic | crankcase explosion lubricating oil properties oil dilution with distillation fuel mechanical spray generation laser diffraction oil mist particle distribution |
| url | https://www.mdpi.com/1996-1073/16/9/3915 |
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