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Abstract
The use of alternative fuels, such as bio-alcohols, in advanced propulsion systems could a feasible strategy to address several of the current issues associated to the use of internal combustion engines fuelled by carbonaceous fossil fuels. Particularly, soot particles, are one of the key pollutants emitted from compression ignition engines. Therefore, the development of soot formation prediction models providing new understanding on the impact of alternative fuels combustion in compression ignition engines become essential for soot mitigation purposes.
This study proposes a new semi-empirical model that predicts in-cylinder soot primary particle growth from an engine fuelled with alcohol–diesel fuel blends. The model uses macroscopic experimental measurements of engine parameters such as instantaneous in-cylinder pressure. Furthermore, an empirical correlation is presented predicting the mean soot primary particle size as a function of alcohol–diesel fuel blend properties and fuel/air ratio. The experimental measurement of primary soot particle mean size are obtained from High Resolution Transmission Electron Microscope (HT-TEM) micrographs obtained from soot particles collected via thermophoresis. Overall, the research findings presented in this work contributes to propose environmentally friendly fuel candidates for transportation.
This study proposes a new semi-empirical model that predicts in-cylinder soot primary particle growth from an engine fuelled with alcohol–diesel fuel blends. The model uses macroscopic experimental measurements of engine parameters such as instantaneous in-cylinder pressure. Furthermore, an empirical correlation is presented predicting the mean soot primary particle size as a function of alcohol–diesel fuel blend properties and fuel/air ratio. The experimental measurement of primary soot particle mean size are obtained from High Resolution Transmission Electron Microscope (HT-TEM) micrographs obtained from soot particles collected via thermophoresis. Overall, the research findings presented in this work contributes to propose environmentally friendly fuel candidates for transportation.
Original language | English |
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Article number | 126346 |
Number of pages | 10 |
Journal | Fuel |
Volume | 333 |
Early online date | 1 Nov 2022 |
DOIs | |
Publication status | Published - 1 Feb 2023 |
Bibliographical note
Funding Information:F.J. Martos expresses thanks (1) the government of Spain for supporting his research stay with reference PRX19/00187 at University of Birmingham and (2) the University of Malaga for supporting through the supercomputing and Bioinnovation Center and in particular to the supercomputer Picasso belonging to the Spanish Supercomputing Network. ESPRC is acknowledged for supporting this work with the project FACE (ESPRC: ref. EP/P03117X/1).
Publisher Copyright:
© 2022 The Author(s)
Keywords
- Primary particle diameter
- Soot
- Compression ignition engines
- Semi-empirical modelling
- Alcoholic fuel blends
ASJC Scopus subject areas
- General Chemical Engineering
- Fuel Technology
- Energy Engineering and Power Technology
- Organic Chemistry
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- 1 Finished
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FACE - Novel Integrated Fuel Reformer-Aftertreament System for Clean and Efficient Road Vehicles
Attallah, M. (Co-Investigator), Tsolakis, A. (Principal Investigator), Essa, K. (Co-Investigator), Windridge, D. (Co-Investigator) & Gough, R. (Co-Investigator)
Engineering & Physical Science Research Council
1/09/17 → 30/06/21
Project: Research Councils