Skip to Main content Skip to Navigation
Theses

Dosage des polluants NO et CO par imagerie de fluorescence induite par laser dans les écoulements réactifs

Abstract : This PhD work is to develop a quantitative imaging technique for measurements of the concentration of pollutants in reactive flows. On one hand, the concern was to develop the NO fluorescence imaging technique. For this purpose, an n-level fluorescence model was first developed to calculate the behavior of fluorescence signals with temperature, species concentration, and pressure. Then this model was validated with fluorescence and absorption measurements acquired in an optical cell up to 800 K and to 20 bar and in a high-pressure laminar burner. From this model, a strategy used to measure the instantaneous NO distribution in a stratified flame was defined. Then, a similar study to detect CO with fluorescence was then investigated. Two-photon fluorescence measurements were performed in the optical cell and in a flame. The results make clear that the spectroscopic diagnostic becomes operational with the need to improve the performances of propulsion systems.
Complete list of metadatas

Cited literature [153 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01777961
Contributor : Abes Star :  Contact
Submitted on : Wednesday, April 25, 2018 - 11:41:06 AM
Last modification on : Thursday, November 28, 2019 - 3:52:44 AM
Long-term archiving on: : Tuesday, September 25, 2018 - 4:39:16 AM

File

GAUTIER.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01777961, version 1

Citation

Pierre Gautier. Dosage des polluants NO et CO par imagerie de fluorescence induite par laser dans les écoulements réactifs. Mécanique des fluides [physics.class-ph]. Normandie Université, 2017. Français. ⟨NNT : 2017NORMIR26⟩. ⟨tel-01777961⟩

Share

Metrics

Record views

226

Files downloads

390