Experimental and modeling study on the molecular weight distribution and properties of carbon particles in premixed sooting flames (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Experimental and modeling study on the molecular weight distribution and properties of carbon particles in premixed sooting flames (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.proci.2010.07.065 (literal)

Alternative label

• Sirignano, M; Alfe, M; Tregrossi, A; Ciajolo A; D’Anna A. (2011)
  Experimental and modeling study on the molecular weight distribution and properties of carbon particles in premixed sooting flames
  in Proceedings of the Combustion Institute
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Sirignano, M; Alfe, M; Tregrossi, A; Ciajolo A; D’Anna A. (literal)

Pagina inizio

• 633 (literal)

Pagina fine

• 640 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 33 (literal)

Rivista

• Proceedings of the Combustion Institute (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1. Univ Naples Federico 2, Dipartimento Ingn Chim, I-80125 Naples, Italy 2. CNR, Ist Ric Combust, I-80125 Naples, Italy (literal)

Titolo

• Experimental and modeling study on the molecular weight distribution and properties of carbon particles in premixed sooting flames (literal)

Abstract

• The evolution of the molecular weight (MW) distribution and structural properties of carbon particulate formed in methane, ethylene and benzene fuel-rich premixed flames, burning in similar conditions of maximum flame temperature, was experimentally measured and modeled. Both solubility and chromatographic separation of the carbon particulate allowed to follow the variation of molecular weight distributions of the different fractions. Structural properties of the carbon particulate in terms of H/C ratio and UV-visible absorption have been determined from particles inception to their maturation as a function of fuel identity. The experimental data were numerically predicted using a detailed gas-phase chemical kinetic mechanism coupled with a discrete sectional approach for the modeling of the molecule-to-particle process. The model was able to follow both particle concentration and structural properties for different fuels. In the benzene flame high molecular mass aromatic compounds appeared very early in the oxidation region and were no longer detected at the end of flame whereas aliphatic fuels showed both aromatic molecules and freshly-nucleated soot particles persisting downstream of the flame. Elemental analysis and UV-visible properties of the carbon particulate showed that also the graphitization process is earlier and much faster in the benzene flame whereas in aliphatic flames the final ordered structure is produced later on the flame and with a slower rate. Detailed modeling of the carbon particulate yields and properties confirms the differences in the evolution of carbon particulate and its structure in benzene and aliphatic flames, also individuating the classes of species: molecules and clusters of molecules, responsible for soot inception. (literal)

Prodotto di

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Studio dei meccanismi di formazione e sviluppo di diagnostiche avanzate di inquinanti da processi di combustione (ET.P01.004.001) (Modulo)
• Processi e tecnologie di abbattimento di inquinanti da processi di combustione (ET.P01.004.002) (Modulo)

Autore CNR

• MICHELA ALFE' (Unità di personale interno)
• ANTONIO TREGROSSI (Unità di personale interno)
• ANNA CIAJOLO (Persona)

Insieme di parole chiave

• Keywords of "Experimental and modeling study on the molecular weight distribution and properties of carbon particles in premixed sooting flames" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• ANNA CIAJOLO (Persona)
• ANTONIO TREGROSSI (Unità di personale interno)
• MICHELA ALFE' (Unità di personale interno)

Prodotto

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Processi e tecnologie di abbattimento di inquinanti da processi di combustione (ET.P01.004.002) (Modulo)
• Studio dei meccanismi di formazione e sviluppo di diagnostiche avanzate di inquinanti da processi di combustione (ET.P01.004.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Proceedings of the Combustion Institute (Rivista)

Insieme di parole chiave di

• Keywords of "Experimental and modeling study on the molecular weight distribution and properties of carbon particles in premixed sooting flames" (Insieme di parole chiave)