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 [Tesi di dottorato] (Unpublished)

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Item Type: Tesi di dottorato
Language: English
Title: Study of hybrid mixture explosions
Creators:
CreatorsEmail
Garcia Agreda, Anitaanita.garcia-agreda@irc.cnr.it
Date: 26 November 2010
Number of Pages: 116
Institution: Università degli Studi di Napoli Federico II
Department: Ingegneria chimica
Doctoral School: Ingegneria industriale
PHD name: Ingegneria chimica
PHD cycle: 23
PHD Coordinator:
nameemail
Maffettone, Pier Lucapierluca.maffettone@unina.it
Tutor:
nameemail
Russo, Gennarogennaro.russo@unina.it
Date: 26 November 2010
Number of Pages: 116
Uncontrolled Keywords: Hybrid mixture explosion, deflagration index, flame propagation, explosion regimes.
MIUR S.S.D.: Area 09 - Ingegneria industriale e dell'informazione > ING-IND/27 - Chimica industriale e tecnologica
Date Deposited: 02 Dec 2010 07:32
Last Modified: 30 Apr 2014 19:44
URI: http://www.fedoa.unina.it/id/eprint/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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