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Burning velocity evaluation from pressure evolution during the early stage of closed-vessel explosions
In the present paper, a comprehensive set of data on explosions in a spherical and a cylindrical vessel with central ignition was examined in order to check the validity of the cubic law, empirically found by many authors for explosions in small-size and medium-size closed vessels. Experiments were performed on propylene-oxygen mixtures, in the presence of various additives (Ar, N2, CO2, CH2BrCl or exhaust gases), at total initial pressures from 0.3 to 1.3 bar. For this pressure range, the cubic law was found valid for pressure rise </= initial pressure and the cubic law constants were evaluated by a non-linear regression analysis. These constants were further used to compute the burning velocities of the examined systems according to the isothermal and adiabatic compression models. This simple and reliable method for burning velocity determination may find an useful application to complex systems, formed either by a composite fuel (landfill gas, gasoline, Diesel fuel) and air or by single fuel-air mixed with composite additives (i.e. their own exhaust gases).
Burning velocity evaluation from pressure evolution during the early stage of closed-vessel explosions
In the present paper, a comprehensive set of data on explosions in a spherical and a cylindrical vessel with central ignition was examined in order to check the validity of the cubic law, empirically found by many authors for explosions in small-size and medium-size closed vessels. Experiments were performed on propylene-oxygen mixtures, in the presence of various additives (Ar, N2, CO2, CH2BrCl or exhaust gases), at total initial pressures from 0.3 to 1.3 bar. For this pressure range, the cubic law was found valid for pressure rise </= initial pressure and the cubic law constants were evaluated by a non-linear regression analysis. These constants were further used to compute the burning velocities of the examined systems according to the isothermal and adiabatic compression models. This simple and reliable method for burning velocity determination may find an useful application to complex systems, formed either by a composite fuel (landfill gas, gasoline, Diesel fuel) and air or by single fuel-air mixed with composite additives (i.e. their own exhaust gases).
Burning velocity evaluation from pressure evolution during the early stage of closed-vessel explosions
Bestimmung der Verbrennungsgeschwindigkeit anhand der Druckentwicklung im Frühstadium von Behälterexplosionen
Razus, Domnina (Autor:in) / Oancea, Dumitru (Autor:in) / Movileanu, Codina (Autor:in)
Journal of Loss Prevention in the Process Industries ; 19 ; 334-342
2006
9 Seiten, 10 Bilder, 7 Tabellen, 31 Quellen
Aufsatz (Zeitschrift)
Englisch
Abgasrückführung , Behälter , Benzin , Brennverhalten , Deponiegas , Dieselöl , Druckerhöhung , Druckverhältnis , Flammausbreitungsgeschwindigkeit , Gasgemisch , Literaturübersicht , nichtlineare Regression , Propen , Schutzgas , Theorie-Experiment-Vergleich , Vereinfachung , Zylinder (Geometrie) , Anfangsbedingung , Explosionsgefahr
| British Library Conference Proceedings | 2013
| British Library Online Contents | 2013
Protecting closed vessels against explosions
| Engineering Index Backfile | 1952