Visualisation and thermovision of fuel combustion affecting heat release to reduce NOx and PM diesel engine emissions
Authors:
- Jerzy Cisek,
- Szymon Leśniak,
- Andrzej Borowski,
- Włodzimierz Przybylski,
- Vitaliy Mokretskyy
Abstract
Research was conducted on fuels with additives that selectively affect the rate of kinetic (dQk/dα) and diffusion (dQd/dα) combustion in the diesel engine cylinder. In addition to the base fuel (DFB), DFKA fuel with an additive reducing dQk/dα, DFDA fuel with an additive increasing dQd/dα, and DFS fuel with both additives were tested. The main purpose of such dQ/dα course control in the engine cylinder was to simultaneously reduce the emissions of nitrogen oxides (NOx) and particulate matter (PM), and to increase the efficiency of the combustion process. Similar to the course of the dQ/dα, the course of the combustion temperature (Tc(α)) affects the NOx produced and the number of afterburned solid particles; the influence of the fuel additives on the functional curves was analysed. In addition to analysis of the temperature Tc(α) calculated from the indicator diagrams, Tc(α) analysis was conducted using the two-colour method, which allows the analysis of the isotherm distributions locally and temporarily. The two-colour method required prior endoscopic visualisation of the fast-changing processes inside the engine cylinder. Parameters defined by pressure, temperature, heat release rate, and visualisation and thermovision in the engine cylinder (as a function of the crank angle) allowed for an in-depth cause and effect analysis. It was determined why combustion of DFS fuel with both additives produced a synergy resulting in the simultaneous reduction in NOx and PM emissions in the exhaust gas and an increase in combustion efficiency. This publication relates to the field of Mechanical Engineering.
- Record ID
- CUT96f54ab879ab4628a377d6388960b735
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2022
- Vol
- 15
- No
- 13
- Pages
- [1-32]
- Article number
- 4882
- Other elements of collation
- fot.; schem.; tab.; Bibliografia (na s.) - 30-32; Bibliografia (liczba pozycji) - 53; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 15, Iss. 13, Spec. Iss.
- Substantive notes
- Special Issue: Advanced Research on Internal Combustion Engines and Engine Fuels
- Keywords in English
- diesel engine, fuel additives, kinetic and diffusion combustion, visualisation, flame temperature, two-colour method, NOx, PM, synergy
- ASJC Classification
- DOI
- DOI:10.3390/en.15134882 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/15/13/4882 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/CUT96f54ab879ab4628a377d6388960b735/
- URN
urn:pkr-prod:CUT96f54ab879ab4628a377d6388960b735
* 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.