Skip to Main content Skip to Navigation
Theses

Influence des propriétés physico-chimiques des hydrocarbures sur l'injection et la combustion Diesel

Abstract : In a context of pollutant emission and green house gas reduction, but also economic issues related to crude oil ressources, the necessity for energy diversification has imposed the emergence and the use in growing quantities of substitute fuels. These fuels derived from numerous feedstocks, produced by several manufacturing processes, have different physico-chemical properties. The effects of each individual property on the Diesel engine behavior (emissions, efficiency, etc) are not well fully understood yet. The present thesis focuses on an experimental study about the influence of physico-chemical properties of the fuels on the processes occuring in the combustion chamber for Diesel engine application. The originality of the approach concerns the definition of a fuel matrix (a total of 20 fuels) for which properties are independently varied. Moreover every stages of the Diesel injection are considered. The interest focuses by the setting of eight advance measurement technics on the caracterization of the flow into the injector orifices, the spray structure and atomization, the spray vaporization and finally the Diesel combustion. Experiments were conducted in dedicated vessels and in an optical access engine allowing to reproduce representive operating conditions. The analysis mainly focuses on the quasi-stationnary phase of the injection event and experimental results are scaled to physic-based models and new empirical correlation are proposed.
Document type :
Theses
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-00752061
Contributor : Abes Star :  Contact
Submitted on : Wednesday, November 14, 2012 - 5:17:23 PM
Last modification on : Thursday, March 5, 2020 - 6:49:32 PM
Long-term archiving on: : Friday, February 15, 2013 - 5:20:23 AM

File

jeremie.dernotte_2424.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00752061, version 1

Citation

Jérémie Dernotte. Influence des propriétés physico-chimiques des hydrocarbures sur l'injection et la combustion Diesel. Autre. Université d'Orléans, 2012. Français. ⟨NNT : 2012ORLE2018⟩. ⟨tel-00752061⟩

Share

Metrics

Record views

2531

Files downloads

1753