http://www.cnr.it/ontology/cnr/individuo/prodotto/ID263001
On the methane negative temperature coefficient behavior in MILD combustion conditions. Water and carbon dioxide effects. (Contributo in atti di convegno)
- Type
- Label
- On the methane negative temperature coefficient behavior in MILD combustion conditions. Water and carbon dioxide effects. (Contributo in atti di convegno) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Alternative label
A.Picarelli, P.Sabia, M. de Joannon, R.Ragucci (2010)
On the methane negative temperature coefficient behavior in MILD combustion conditions. Water and carbon dioxide effects.
in 8th International Symposium on High Temperature Air Combustion and Gasification, Poznan, July 5-7 2010
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- A.Picarelli, P.Sabia, M. de Joannon, R.Ragucci (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto di Ricerche sulla Combustione- CNR
Dip. Ingegneria Chimica, Università Federico II, Napoli (literal)
- Titolo
- On the methane negative temperature coefficient behavior in MILD combustion conditions. Water and carbon dioxide effects. (literal)
- Abstract
- concept in the field and diluted, by means of
internal or external recirculation of exhausted
gases, to realize a thermal efficient process and
drastically reduce pollutants formation.
Under such operative conditions, the evolution
of the oxidation process is significantly affected
by mixture high inlet sensible enthalpy, low
reactants concentration, and the presence of
conspicuous amount of water and carbon
dioxide.
The paper aims to study the methane oxidation
process under MILD combustion conditions in
presence of different diluent species.
Previous experimental studies, performed in a
tubular flow reactor, using CH4/O2 mixtures
diluted in nitrogen, revealed the existence of a
Negative Temperature Coefficient (NTC)
behavior.
Therefore, the attention has been devoted to
such peculiar phenomenology. Several
simulations were carried out by means of
commercial codes and different kinetic schemes
available in literature and the analyses were
extended to mixtures diluted with different
diluents, namely carbon dioxide and water.
Reaction path diagrams, sensitivity and Rates Of
Production analyses were realized to understand
the methane NTC behavior and the chemical
influence of diluent species on auto-ignition
characteristic times.
Keywords - Methane oxidation, MILD
combustion, Negative Temperature Coefficient,
Auto-ignition delay time. (literal)
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