http://www.cnr.it/ontology/cnr/individuo/prodotto/ID257775
Laser excited emission and chemiluminescence from autoigniting spray (Articolo in rivista)
- Type
- Label
- Laser excited emission and chemiluminescence from autoigniting spray (Articolo in rivista) (literal)
- Anno
- 2000-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1080/00102200008947287 (literal)
- Alternative label
de Joannon, M., Ragucci, R., Cavaliere, A. (2000)
Laser excited emission and chemiluminescence from autoigniting spray
in Combustion science and technology; Taylor and Francis, Abingdon (Regno Unito)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- de Joannon, M., Ragucci, R., Cavaliere, A. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto di Ricerche sulla Combustione - C.N.R, Napoli, Italy
Dipartimento di Ingegneria Chimica, Università Federico II (literal)
- Titolo
- Laser excited emission and chemiluminescence from autoigniting spray (literal)
- Abstract
- The work presented in this paper deals with the synchronous multiwavelength detection of thermal, chemiluminescent and laser-excited 0'0=266nm) emission from spray of a large saturated paraffin (tctradccane) in auto-igniting conditions. Two of these have been selected by varying oxygen molar fraction (0.13 and 0.21) of high pressure (2MPa), high temperature oxidant (900K) stream yielding non-sooting combustion.
The main measured spectroscopic feature was an isolated broadband fluorescence signal detected around A.=330nm.This signal is here attributed to aldehyde functionality on the basis of both calibra- tion tests. performed on liquid aldehydes with the same optical set-up, and literature data relative to fluorescence and chemiluminescence measurements in simpler conditions. Furthermore. temporal evolution of this signal. in the conditions reported here. is consistent with two-step ignition kinetics of paraffins to which a large production of aldehydes and ketones is related. Chemiluminescence maximum, due to HCO and C2 radicals, is slightly delayed with respect to the fluorescence maximum and is in synchrony with a minimum of the aldehydic species fluorescence signal. These maxima and minima mark unambiguously the time interval in which combustion evolves in premixed and diffu- sion controlled conditions, when pyrolnic species formation occurs. (literal)
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