Skip to Main content Skip to Navigation
New interface
Theses

Soot and NOx modeling dedicated to Diesel engine

Abstract : European rules are more and more restrictive concerning pollutants emissions. This work deals with the modeling of NOx and soot particles. The final aim is to provide modeling tools in order to analyse the mechanismes leading to reduce these emissions in the combustion chamber. First, a tabulated NO prediction model has been developed. This model (called NORA: NO Relaxation Approach) is based on equilibrium state perturbation method. NORA is simple to use, robust and totally independent of the turbulent combustion model. The use of the NORA allows a significative improvement of the results compared to the direct resolution of the Zel'dovich mechanism with a reduce chemistry. In a second part, this work deals with soot predictions with the final aim the prediction of the soot volume fraction and the particle size distribution function (PSDF). The sectional method approach was first implemented in a 1-D flame solver and validated against experimental flames data. The question of the coupling between the soot sectional model and a turbulent combustion model has been addressed. Studies show that the coupling between gaseous and solid phase is non-negligible. A first mixed combustion model (called MTKS) using a tabulated method and a kinetic solver in the burned gases has been coupled to the soot sectional model. The MTKS approach has been tested in heterogeneous variable volume reactors and results are promising.
Document type :
Theses
Complete list of metadata

Cited literature [113 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00685123
Contributor : ABES STAR :  Contact
Submitted on : Wednesday, April 4, 2012 - 11:04:58 AM
Last modification on : Tuesday, June 15, 2021 - 4:29:57 PM
Long-term archiving on: : Thursday, July 5, 2012 - 2:31:51 AM

File

these-vervisch.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00685123, version 1

Collections

Citation

Pauline Vervisch. Soot and NOx modeling dedicated to Diesel engine. Other. Ecole Centrale Paris; IFP Energies nouvelles (Rueil-Malmaison, Hauts-de-Seine), 2012. English. ⟨NNT : 2012ECAP0007⟩. ⟨tel-00685123⟩

Share

Metrics

Record views

545

Files downloads

737