Nomenclature

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 restric-tions. The possible extinguishing efficiencies are compared to those of conventional gas extinguishing systems, which are standardized in international guidelines. Based on these results, system solutions are proposed for the protection of rooms, for a local protection of industrial objects and for tunnel applications