This article evaluates the knowledge obtained in fi refi ghting tests using compressed air foam system (CAFS) within a confi ned space. Six experiments were conducted forverifi cation during the cooling of rooms and the self-extinguishing effect. The simulationwas for a fully developed fi re within a room. The fuel was chosen to simulate ordinarycombustible materials utilized in residential areas. Mantel thermocouples were placed inthe rooms to record the temperature changes. Compressed air foam was fi rst applied witha standard fi re hose nozzle to the ceiling and then to the epicenter of fi re. Fire extinguishingwas initiated after reaching the desired temperature in the room. The temperature forthe start of fi re extinguishing matched the third phase of development of a fi re. Fireextinguishing was terminated after no obvious signs of fi re were shown in epicenter offi re. The outputs of the experiments were evaluated on the basis of the amount of timepassed for the temperature to drop below the suggested limit. Individual experimentswere also conducted with various different admixing foaming agents over differentlocations. In the experiments, it has been verifi ed that the application of compressed airfoam has a positive effect on room cooling. Use of a compressed air foaming agent doesnot allow for the development of steam that can scald fi refi ghters and reduce visibility.Furthermore, the extinguishing agent used is more effi cient utilizing less water fl ow outof the fi re area.
展开▼
