Citation

Crescitelli S, Russo G, Tufano V. J. Occup. Accid. 1979; 2(2): 125-133.

Copyright

(Copyright © 1979, Elsevier Publishing)

DOI

unavailable

PMID

unavailable

Abstract

Crescitelli, S., Russo, G. and Tufano, V., 1979. Analysis and design of venting systems: A simplified approach. Journal of Occupational Accidents, 2: 125-133.The use of light vent panels has become common practice for avoiding internal explosions in process vessels. The purpose of such devices is to provide a large venting area to stop any accidental pressure rise reaching a dangerous value.However, the design procedure does not yet seem well established, because the phenomenon which needs to be modelled is a typically unsteady one, and some little-known factors, such as the rate of pressure rise in the vessel, must be taken into account.Moreover, the geometry of the apparatus, mainly the characteristics of the tubes which lead the overpressure outside the protected area, affects the effectiveness of the apparatus design.In this paper, a mathematical model, which takes into account the main features of the phenomenon, is presented for the case in which the pressure rise is due to a deflagration in a combustible gaseous mixture.An attempt is made to establish a reliable design procedure for the venting devices; also the main problems which require more experimental and theoretical work are pointed out.