Garcia Agreda, Anita (2010) Study of hybrid mixture explosions. [Tesi di dottorato] (Inedito)

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Tipologia del documento: Tesi di dottorato
Lingua: English
Titolo: Study of hybrid mixture explosions
Autori:
AutoreEmail
Garcia Agreda, Anitaanita.garcia-agreda@irc.cnr.it
Data: 26 Novembre 2010
Numero di pagine: 116
Istituzione: Università degli Studi di Napoli Federico II
Dipartimento: Ingegneria chimica
Scuola di dottorato: Ingegneria industriale
Dottorato: Ingegneria chimica
Ciclo di dottorato: 23
Coordinatore del Corso di dottorato:
nomeemail
Maffettone, Pier Lucapierluca.maffettone@unina.it
Tutor:
nomeemail
Russo, Gennarogennaro.russo@unina.it
Data: 26 Novembre 2010
Numero di pagine: 116
Parole chiave: Hybrid mixture explosion, deflagration index, flame propagation, explosion regimes.
Settori scientifico-disciplinari del MIUR: Area 09 - Ingegneria industriale e dell'informazione > ING-IND/27 - Chimica industriale e tecnologica
Depositato il: 02 Dic 2010 07:32
Ultima modifica: 30 Apr 2014 19:44
URI: http://www.fedoa.unina.it/id/eprint/7988
DOI: 10.6092/UNINA/FEDOA/7988

Abstract

The work of this thesis aims at studying the explosive phenomenon of hybrid mixtures to get insights into the driving mechanisms and the explosion features affecting the course of hybrid mixture explosion. This is achieved by means of an extensive experimental study that developed in the following steps: - Measurement of the ignitability and the explosion severity; - Study of the flame propagation. The explosion experiments were performed in a 20 l Siwek bomb; instead, the flame propagation experiments were performed in a new equipment: a tube of 1 m length and 7x7 cm square. The hybrid mixture under examination was a mixture of methane and nicotinic acid in air. Results allow the definition of four different regimes of the gas/dust/air mixture explosion in the plane dust concentration vs. fuel concentration. And the flame propagation behaviour of the mixture gives a further contribution to the explanation of the different regimes.

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