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A platform for research: civil engineering, architecture and urbanism
A methodology to evaluate flameless venting devices for dust explosions
A methodology that can be used to evaluate the effectiveness of explosion vents and of flameless venting devices is presented in this paper. This methodology is based on a series of explosion tests conducted in FM Global's 8 m3 explosion vessel using cornstarch as an example dust. The overall performance of a flameless venting device is determined by its ability to successfully quench a vented explosion (while maintaining its structural integrity) and by its total efficiency, which is defined as the ratio of the effective vent area to the nominal vent area. The functional form of the total efficiency is taken as the product of an area efficiency (i.e., the ratio between the effective vent area of the device to that of a burst disc assembled with the device) and a burst efficiency of the burst disc itself (i.e., the ratio of the effective vent area of the burst disc to the nominal vent area). The effective vent areas are calculated from measured reduced overpressures using an empirical vent-sizing correlation.
A methodology to evaluate flameless venting devices for dust explosions
A methodology that can be used to evaluate the effectiveness of explosion vents and of flameless venting devices is presented in this paper. This methodology is based on a series of explosion tests conducted in FM Global's 8 m3 explosion vessel using cornstarch as an example dust. The overall performance of a flameless venting device is determined by its ability to successfully quench a vented explosion (while maintaining its structural integrity) and by its total efficiency, which is defined as the ratio of the effective vent area to the nominal vent area. The functional form of the total efficiency is taken as the product of an area efficiency (i.e., the ratio between the effective vent area of the device to that of a burst disc assembled with the device) and a burst efficiency of the burst disc itself (i.e., the ratio of the effective vent area of the burst disc to the nominal vent area). The effective vent areas are calculated from measured reduced overpressures using an empirical vent-sizing correlation.
A methodology to evaluate flameless venting devices for dust explosions
Chao, Jenny (author) / Dorofeev, Sergey B. (author)
2013
14 Seiten, 7 Bilder, 2 Tabellen, 5 Quellen
Conference paper
Storage medium
English
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