@prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . @prefix prodotto: . unitaDiPersonaleInterno:MATRICOLA5762 pubblicazioni:autoreCNRDi prodotto:ID80229 . @prefix prodottidellaricerca: . @prefix istituto: . istituto:CDS031 prodottidellaricerca:prodotto prodotto:ID80229 . unitaDiPersonaleInterno:MATRICOLA29144 pubblicazioni:autoreCNRDi prodotto:ID80229 . unitaDiPersonaleInterno:MATRICOLA26103 pubblicazioni:autoreCNRDi prodotto:ID80229 . @prefix unitaDiPersonaleEsterno: . unitaDiPersonaleEsterno:ID2064 pubblicazioni:autoreCNRDi prodotto:ID80229 . @prefix modulo: . modulo:ID2188 prodottidellaricerca:prodotto prodotto:ID80229 . @prefix rdf: . @prefix retescientifica: . prodotto:ID80229 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1301 . @prefix rdfs: . prodotto:ID80229 rdfs:label "Preliminary investigation on the influence of hydrogen addition in air/C2H4 premiixed flames (Contributo in atti di convegno)"@en . @prefix xsd: . prodotto:ID80229 pubblicazioni:anno "2007-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID80229 skos:altLabel "
Migliorini F., Mancarella S., Bianchi S., De Iuliis S., Cignoli F., Zizak G. (2007)
Preliminary investigation on the influence of hydrogen addition in air/C2H4 premiixed flames
in 30th Meeting of the Italian Section of the Combustion Institute, Ischia, 2007
"^^rdf:HTML ; pubblicazioni:autori "Migliorini F., Mancarella S., Bianchi S., De Iuliis S., Cignoli F., Zizak G."^^xsd:string ; pubblicazioni:titoloVolume "30th Meeting of the Italian Section of the Combustion Institute"^^xsd:string ; pubblicazioni:affiliazioni "IENI-CNR\nPolitecnico di Milano"^^xsd:string ; pubblicazioni:titolo "Preliminary investigation on the influence of hydrogen addition in air/C2H4 premiixed flames"^^xsd:string ; pubblicazioni:isbn "978-88-88104-07-2"^^xsd:string ; prodottidellaricerca:abstract "Recent research and development in the area of combustion have been motivated by the\ncommitment of preserving a clean environment and to reduce energy consumption. In this\ndirection, hydrogen-hydrocarbon hybrid fuels have received increasing attention. Blends of\nhydrogen and hydrocarbons show an improved ignitability and flame stability, especially in\nthe lean burning regimes where stable combustion of hydrocarbons is extremely difficult [1].\nThe use of hydrogen blended with traditional hydrocarbon fuels, such as natural gas, extends\nlow CO emissions to leaner mixtures in swirl-stabilized flames through its effect on flame\nchemistry [2]. In fact, changes in fuel composition affect both the chemical and physical\nprocesses occurring in flames. Few of these issues are clearly understood and an important\nresearch field consists of identification and understanding of the chemical effects of additives,\nlike hydrogen, on soot formation. The influence of hydrogen addition to fuel on temperature and soot formation in co-flow laminar diffusion flames of ethylene, propane, butane and methane has been experimentally studied [3,4]. It was found that while methane exhibits a\npeculiar behavior [4], in the case of propane and butane flames, hydrogen and helium addition reduces soot by the same amount showing that hydrogen has mainly a dilution effect. On the contrary, in the ethylene flame hydrogen addition reduces soot more than helium, indicating also the presence of a chemical route for soot reduction. More recently, Guo et al. [5], using a computational approach, suggested that the chemically inhibiting effect of hydrogen addition on soot formation can be ascribed both to the H radicals concentration reduction in the surface growth region and to the higher H2 concentration in the lower region of the diffusion flame.\nIn this work an experimental study, concerning temperature and extinction measurements, has been carried out on laminar premixed ethylene/air and ethylene/H2/air fuel-rich flames. The results confirm that the presence of hydrogen in the fuel results in an overall suppression of soot formation. Further studies are needed for a deeper understanding of the possible competitive phenomena involved in the process."@en ; prodottidellaricerca:prodottoDi istituto:CDS031 , modulo:ID2188 ; pubblicazioni:autoreCNR unitaDiPersonaleEsterno:ID2064 , unitaDiPersonaleInterno:MATRICOLA29144 , unitaDiPersonaleInterno:MATRICOLA5762 , unitaDiPersonaleInterno:MATRICOLA26103 .