The modeling of fuel auto-ignition delay and its verification using diesel engines fueled with oils with standard or increased cetane numbers
Authors:
- Jerzy Cisek,
- Szymon Leśniak
Abstract
This article contains the results of mathematical modeling of the self-ignition delay (τc sum) of a single droplet for various fuels, and the results of measurement verification (τc) of this modeling in diesel engines. The result of modeling the τc sum (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 (WFi ) in relation to the total delay of self-ignition. It was also found that the WFi values of individual phases of the self-ignition delay differed for different fuels (conventional and alternative), and in the total value of τc sum. The measured value of the self-ignition delay (τc) was determined in tests using two diesel engines (older—up to EURO II and newer generation—from EURO IV). The percentage difference in the ∆τc sum value obtained from modeling two fuels with different cetane number values was compared with the percentage difference in the ∆τc 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.
- Record ID
- CUTe3edbdc0843a469cbee9a4aeeb82c41a
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2023
- Vol
- 16
- No
- 14
- Pages
- [1-22]
- Article number
- 5273
- Other elements of collation
- rys.; schem.; tab.; wykr.; Bibliografia (na s.) - 21-22; Bibliografia (liczba pozycji) - 46; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 16, Iss. 14
- Substantive notes
- This article belongs to the Special Issue: Analysis of Energy Efficiency and Emission for Fuel Combustion
- Keywords in English
- delay of self-ignition, physical modeling of τc, verification of modeling of τc, combustion process, diesel engine
- ASJC Classification
- DOI
- DOI:10.3390/en16145273 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/16/14/5273 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTe3edbdc0843a469cbee9a4aeeb82c41a/
- URN
urn:pkr-prod:CUTe3edbdc0843a469cbee9a4aeeb82c41a
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.