Fire Safety Science Digital Archive

Water-based extinguishing systems as water mist and water spray get increasingly impor-tant on the extinguishing market. This work examines the extinguishing properties of these systems on a thermodynamic basis and shows both their advantages and restrictions. The possible extinguishing efficiencies are compared to those of conventional gas extin-guishing systems, which are standardized in international guidelines. Based on these re-sults, system solutions are proposed for the protection of rooms, for a local protection of industrial objects and for tunnel applications.