The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane Numbers
This article contains the results of mathematical modeling of the self-ignition delay (<i>τ<sub>c sum</sub></i>) of a single droplet for various fuels, and the results of measurement verification (<i>τ<sub>c</sub></i>) of this modeling in diesel engine...
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| Format: | Article |
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MDPI AG
2023-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/14/5273 |
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| author | Jerzy Cisek Szymon Leśniak |
| author_facet | Jerzy Cisek Szymon Leśniak |
| author_sort | Jerzy Cisek |
| collection | DOAJ |
| description | This article contains the results of mathematical modeling of the self-ignition delay (<i>τ<sub>c sum</sub></i>) of a single droplet for various fuels, and the results of measurement verification (<i>τ<sub>c</sub></i>) of this modeling in diesel engines. The result of modeling the <i>τ<sub>c sum</sub></i> (as a function of the diameter and ambient temperature of the fuel droplet) revealed two physical and two chemical stages that had different values of the weighting factor (<i>WF<sub>i</sub></i>) in relation to the total delay of self-ignition. It was also found that the <i>WF<sub>i</sub></i> values of individual phases of the self-ignition delay differed for different fuels (conventional and alternative), and in the total value of <i>τ<sub>c sum</sub></i>. The measured value of the self-ignition delay (<i>τ<sub>c</sub></i>) was determined in tests using two diesel engines (older—up to EURO II and newer generation—from EURO IV). The percentage difference in the <i>Δτ<sub>c sum</sub></i> value obtained from modeling two fuels with different cetane number values was compared with the percentage difference in the <i>Δτ<sub>c</sub></i> value for the same fuels obtained during the engine measurements. Based on this analysis, it was found that the applied calculation model of the self-ignition delay for a single fuel droplet can be used for a comparative analysis of the suitability of different fuels in the real conditions of the cylinder of a diesel engine. This publication relates to the field of mechanical engineering. |
| first_indexed | 2024-03-11T01:08:15Z |
| format | Article |
| id | doaj.art-d7cf84c14d464f64a0ee61b3765e0105 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T01:08:15Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d7cf84c14d464f64a0ee61b3765e01052023-11-18T19:07:56ZengMDPI AGEnergies1996-10732023-07-011614527310.3390/en16145273The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane NumbersJerzy Cisek0Szymon Leśniak1Mechanical Department, Cracow University of Technology, 31-864 Cracow, PolandMechanical Department, Cracow University of Technology, 31-864 Cracow, PolandThis article contains the results of mathematical modeling of the self-ignition delay (<i>τ<sub>c sum</sub></i>) of a single droplet for various fuels, and the results of measurement verification (<i>τ<sub>c</sub></i>) of this modeling in diesel engines. The result of modeling the <i>τ<sub>c sum</sub></i> (as a function of the diameter and ambient temperature of the fuel droplet) revealed two physical and two chemical stages that had different values of the weighting factor (<i>WF<sub>i</sub></i>) in relation to the total delay of self-ignition. It was also found that the <i>WF<sub>i</sub></i> values of individual phases of the self-ignition delay differed for different fuels (conventional and alternative), and in the total value of <i>τ<sub>c sum</sub></i>. The measured value of the self-ignition delay (<i>τ<sub>c</sub></i>) was determined in tests using two diesel engines (older—up to EURO II and newer generation—from EURO IV). The percentage difference in the <i>Δτ<sub>c sum</sub></i> value obtained from modeling two fuels with different cetane number values was compared with the percentage difference in the <i>Δτ<sub>c</sub></i> value for the same fuels obtained during the engine measurements. Based on this analysis, it was found that the applied calculation model of the self-ignition delay for a single fuel droplet can be used for a comparative analysis of the suitability of different fuels in the real conditions of the cylinder of a diesel engine. This publication relates to the field of mechanical engineering.https://www.mdpi.com/1996-1073/16/14/5273delay of self-ignitionphysical modeling of <i>τ<sub>c</sub></i>verification of modeling of <i>τ<sub>c</sub></i>combustion processdiesel engine |
| spellingShingle | Jerzy Cisek Szymon Leśniak The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane Numbers Energies delay of self-ignition physical modeling of <i>τ<sub>c</sub></i> verification of modeling of <i>τ<sub>c</sub></i> combustion process diesel engine |
| title | The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane Numbers |
| title_full | The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane Numbers |
| title_fullStr | The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane Numbers |
| title_full_unstemmed | The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane Numbers |
| title_short | The Modeling of Fuel Auto-Ignition Delay and Its Verification Using Diesel Engines Fueled with Oils with Standard or Increased Cetane Numbers |
| title_sort | modeling of fuel auto ignition delay and its verification using diesel engines fueled with oils with standard or increased cetane numbers |
| topic | delay of self-ignition physical modeling of <i>τ<sub>c</sub></i> verification of modeling of <i>τ<sub>c</sub></i> combustion process diesel engine |
| url | https://www.mdpi.com/1996-1073/16/14/5273 |
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