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Downward flame front spread in thin solid fuels: theory and experiments

Flame spread over solid samples has been studied from many points of view, as it is key for fire safety, yet it is a complex phenomenon that involves processes occurring in both the solid and the gas phases. This Ph.D. thesis studies the flame spread over thin solid samples in processes more complex than the classical cases where a flame spreads horizontally or downward over a vertical solid sample. In particular, this thesis deals with three different situations: the effects of the sides to the vertically downward flame spread over a thin solid; the effects of having various parallel samples burning simultaneously, and flame spread over horizontal and downward inclined samples. For all these situations a complete experimental study is made and a model that explains the obtained results is developed

La propagaci贸 de flames en s貌lids 茅s un fenomen complex que inclou processos que s鈥檈sdevenen tant a la fase s貌lida com a la fase gasosa. Diversos autors han estudiat aquest fenomen des de diferents punts de vista ja que 茅s un element clau en l鈥檃n脿lisi del risc d鈥檌ncendis i de la din脿mica de focs. En aquesta tesi doctoral estudiem la propagaci贸 de flames en s貌lids prims en processos m茅s complexos que els processos cl脿ssics, on la flama es propaga horitzontalment o cap avall en una mostra vertical. M茅s concretament, aquesta tesi versa sobre tres situacions diferents: l鈥檈fecte de les vores en la propagaci贸 verticalment cap avall de la flama sobre un s貌lid prim; els efectes de tenir diverses mostres paral鈥eles cremant alhora, i la propagaci贸 cap avall de la flama en mostres inclinades i horitzontals. Per a aquestes tres situacions es desenvolupa un estudi experimental complet i un model que descriu els resultats obtinguts

Universitat de Girona

Manager: Pujol i Sagar贸, Toni
Other contributions: Universitat de Girona. Departament d鈥橢nginyeria Mec脿nica i de la Construcci贸 Industrial
Author: Comas Hervada, Bruna
Date: 2014 July 14
Abstract: Flame spread over solid samples has been studied from many points of view, as it is key for fire safety, yet it is a complex phenomenon that involves processes occurring in both the solid and the gas phases. This Ph.D. thesis studies the flame spread over thin solid samples in processes more complex than the classical cases where a flame spreads horizontally or downward over a vertical solid sample. In particular, this thesis deals with three different situations: the effects of the sides to the vertically downward flame spread over a thin solid; the effects of having various parallel samples burning simultaneously, and flame spread over horizontal and downward inclined samples. For all these situations a complete experimental study is made and a model that explains the obtained results is developed
La propagaci贸 de flames en s貌lids 茅s un fenomen complex que inclou processos que s鈥檈sdevenen tant a la fase s貌lida com a la fase gasosa. Diversos autors han estudiat aquest fenomen des de diferents punts de vista ja que 茅s un element clau en l鈥檃n脿lisi del risc d鈥檌ncendis i de la din脿mica de focs. En aquesta tesi doctoral estudiem la propagaci贸 de flames en s貌lids prims en processos m茅s complexos que els processos cl脿ssics, on la flama es propaga horitzontalment o cap avall en una mostra vertical. M茅s concretament, aquesta tesi versa sobre tres situacions diferents: l鈥檈fecte de les vores en la propagaci贸 verticalment cap avall de la flama sobre un s貌lid prim; els efectes de tenir diverses mostres paral鈥eles cremant alhora, i la propagaci贸 cap avall de la flama en mostres inclinades i horitzontals. Per a aquestes tres situacions es desenvolupa un estudi experimental complet i un model que descriu els resultats obtinguts
Format: application/pdf
Document access: http://hdl.handle.net/10803/276957
Language: eng
Publisher: Universitat de Girona
Subject: F铆sica
Enginyeria. Tecnologia
Title: Downward flame front spread in thin solid fuels: theory and experiments
Type: doctoralThesis
Repository: TDX

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