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Titolo:
A probe to estimate the local fuel concentration in spark ignition engines: design and validation study of catalytic hot wire probe
Autore:
Depussay, E; Mounaim-Rousselle, C; Burnel, S;
Indirizzi:
Univ Orleans, LME, F-45072 Orleans 02, France Univ Orleans Orleans France 02 Orleans, LME, F-45072 Orleans 02, France
Titolo Testata:
FLOW MEASUREMENT AND INSTRUMENTATION
fascicolo: 4, volume: 12, anno: 2001,
pagine: 313 - 325
SICI:
0955-5986(200108)12:4<313:APTETL>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLATINUM;
Keywords:
catalytic hot wired; local air/fuel concentration measurement; test engine; gasoline direct injection (GDI) engine; planar laser-induced fluorescence (PLIF); fuel/air ratio laser-induced exciplex fluorescence (FARLIEF);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Depussay, E Univ Orleans, LME, Rue Leonard de Vinci, F-45072 Orleans 02, France Univ Orleans Rue Leonard de Vinci Orleans France 02 2, France
Citazione:
E. Depussay et al., "A probe to estimate the local fuel concentration in spark ignition engines: design and validation study of catalytic hot wire probe", FLOW MEAS I, 12(4), 2001, pp. 313-325

Abstract

A catalytic hot wire probe (CHWP) technique has been developed to estimatethe local fuel concentration near the spark plug of a spark ignition engine. Knowledge of this local concentration is highly useful in studying the combustion process. The small fuel concentration variation is measured by superimposing a catalysis effect in the thermal balance of the hot wire. Various parameters such as pressure, temperature and sampling velocity have been tested for their effect on the hot wire catalytic response. To validate this CHWP technique, local fuel concentration was also measured by two optical diagnostic techniques: planar laser-induced fluorescence (PLIF) and fuel/air ratio laser-induced exciplex fluorescence (FARLIEF). Comparison with PLIF measurements shows good agreement, and the capabilities and limitations of both techniques. With the FARLIEF/CHWP study, we can characterise the time and spatial variation of the fuel/air ratio in the vicinity of the spark plug in the gasoline direct injection engine. (C) 2001 Published by Elsevier Science Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/10/20 alle ore 23:38:53