ICLASS 94
Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems
Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems
ISBN Print: 978-1-56700-019-1
ISBN Online: 978-1-56700-446-5
THE DISPERSION OF FIRE SUPPRESSION AGENTS DISCHARGED FROM HIGH PRESSURE VESSELS : ESTABLISHING INITIAL/BOUNDARY CONDITIONS FOR THE FLOW OUTSIDE THE VESSEL
DOI: 10.1615/ICLASS-94.1320
pages 1031-1038
Abstract
This is part of a study of dispersion of Halon and Halon-alternative fire extinguishment agents discharged from N2-pressurized vessels. As liquid agent exits from the vessel, thermodynamic and fluid-dynamic instabilities lead to flashing and break-up into a two-phase droplet/gaseous jet mixture. This occurs in a transition region relatively close to the vessel exit orifice/nozzle. Downstream, the agent jet is dispersed in the protected space. A model to simulate vessel discharge was developed previously. Using the output of this and thermodynamic and fluid-dynamic considerations of phenomena in the transition region, this paper develops a method for determining time-dependent boundary conditions at an initial section of the jet, downstream of the transition region. These boundary conditions can be used to simulate development and dispersal of the ensuing air/two-phase-agent jet. Applications of the methodology are presented.
Begell Recommend
Electrospinning of Micro- and Nanofibers: Fundamentals in Separation and Filtration Processes Y. FilatovA. Budyka
V. Kirichenko ISBN Print: 978-1-56700-241-6
ISBN Online: 978-1-56700-240-9
Thermal Radiation in Disperse Systems: An Engineering Approach Leonid A. Dombrovsky
Dominique Baillis ISBN Print: 978-1-56700-268-3
ISBN Online: 978-1-56700-351-2