1993
DOI: 10.1002/prs.680120106
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Venting of gaseous explosions

Abstract: An experimental investigation has been performed into the venting of methane‐air explosions in heating plants. The investigation was performed on a realistic scale in a 38.5 m3 enclosure. The first part of the experimental program concerns the influence of the “usual” parameters such as the vent opening area, the vent opening pressure, the ignition location and the vent opening configuration. The second part of the investigation concerns the influence of factors related to heating plants. Thus the effect of in… Show more

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Cited by 28 publications
(10 citation statements)
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“…One of the results of this survey was that central ignition had to be considered as the worst case in terms of the maximum pressures developed during the explosion. A more comprehensive analysis of data from more recent publications [31,32] reveals that the rear ignition poses a worst case scenario (especially when no acoustic enhancement is observed). Once again the apparent contradiction could lie in the different scales of works quoted.…”
Section: Scale-effectsmentioning
confidence: 96%
“…One of the results of this survey was that central ignition had to be considered as the worst case in terms of the maximum pressures developed during the explosion. A more comprehensive analysis of data from more recent publications [31,32] reveals that the rear ignition poses a worst case scenario (especially when no acoustic enhancement is observed). Once again the apparent contradiction could lie in the different scales of works quoted.…”
Section: Scale-effectsmentioning
confidence: 96%
“…Vented explosions typically exhibit a series of pressure peaks; of which, not all are present in all explosions, and which have been interpreted in a number of different ways (Bauwens et al, 2010;Bimson et al, 1993;Cooper, Fairweather, & Tite, 1986;Fakandu, Kasmani, Andrews, & Phylaktou, 2011;Fakandu et al, 2013;Harrison & Eyre, 1987;Mercx et al, 1993;Pappas, Solberg, & Foyn, 1984;van Wingerden, 1984a;van Wingerden, 1989;Zalosh, 1980). For clarity, in this study, the following definitions are used to describe the pressure peaks; P V is used to label the pressure peak associated with the opening of the vent, P b is used to label the peak associated with the onset of burnt gas venting, P ext is used to label the peak associated with the external explosion and P mfa is used to label the peak associated with the maximum flame area or maximum flame speed.…”
Section: General Remarksmentioning
confidence: 99%
“…Up until this point, the event may be considered as a confined explosion (with the potential to develop an overpressure of between 7 and 8 bar), but after venting begins, the rate of pressure rise, and hence the maximum pressure developed, is governed by the balance between the rate at which combustion products are produced and the rate of outflow through the venting process. The rate of outflow is dependent upon the size and location of the vent(s) (Alexiou, Andrews, & Phylaktou, 1997;Bauwens, Chaffee, & Dorofeev, 2010;Eckhoff, Fuhre, Guirao, & Lee, 1984;Fakandu, 2014;Fakandu, Andrews, & Phylaktou, 2014;Fakandu, Yan, Phylaktou, & Andrews, 2013;Mercx, van Wingerden, & Pasman, 1993;Pappas, 1983;van Wingerden, 1989;van Wingerden & Zeeuwen, 1983c;Zalosh, 1980), whilst the rate at which hot combustion products are produced is directly related to the burning velocity of the fuel. Consequently, the rate of pressure rise in an accidental explosion is strongly dependent upon the fuels composition and on any turbulence that increases the burning velocity (and hence the flame speed).…”
Section: Introductionmentioning
confidence: 99%
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“…Hirano [76] mentioned that one of the factors affecting the pressure variation during gas explosion in an enclosure was the flame behavior whose prediction was said not to be easy. Swift [77] [99] investigated the venting of methane-air explosions in heating plants and examined the effects of vent area, vent opening pressure, ignition location and venting through a dormer window.…”
Section: Vented Gas Explosionmentioning
confidence: 99%