Simulación de un sistema contra incendios (CFAST), utilizando una solución ignífuga inorgánica diluida, en el área de producción de pasteurizadora El Ranchito

Abstract

At present, the loss of human lives, as well as materials due to fires within industrial plants is very common, since there are no early detection systems for these accidents, one of the reasons being the cost of implementation. To do this, different computerized systems have been created that allow the prediction of fires, through the application of mathematical calculations, thus reducing these expenses. In this work, the CFAST computer tool was used for the simulation of a firefighting system in the production area of El Ranchito pasteurizer, using sprinklers with diluted inorganic fireproof solutions. For which the type of risk presented by the plant was determined with the help of the NFPA13 and UNE 12845 Regulations, in addition to the extinction conditions, as well as the materials used within the building, for the risk presented by the plant according to the UNE 12845 the design area is 325m2 with a design density of 705 mm per minute. Finally, with the help of CFAST and the Smokeview data visualizer, the difference in the activation times of the sprinklers in the event of a fire was evaluated, with the use of fireproof solution (aluminum hydroxide) using heat release curves (HRR). It was identified that the type of risk for the dairy processor El Ranchito is of type extra risk grade 1, according to the two regulations used. On the other hand, the total area of application was obtained 424.27 square meters, as well as the total number of sprinklers, being 28 for this case. For the simulation, two were performed, the first using sprinklers with water and the second applying 9 percent of the fireproof (Paredes Villacis, 2018). Reducing the HRR curve by 30 percent and sprinkler activation times. So it can be said that better results were obtained by applying the inorganic fireproof Aluminum Hydroxide to 9 percent, because with the application of the solution an improvement of 40 percent in the cooling time of the system was achieved.