Abstract: In order to determine the designs for application of special application sprinklers for warehouses in pre-action systems, model K-363 special application sprinklers for warehouses were selected in this study. Based on the analysis of influencing factors of fire control and extinguishing performance of automatic sprinkler systems, simulations were carried out under various conditions including different building heights, rack forms, and fire source locations. By comparing and analyzing the fire control effects of different designs, the minimum working pressure, sprinkler spacing, fire detector selection and rack layout form and other design parameters for application of special application sprinklers for warehouses in pre-action systems were feasible and reasonable.

Key words: fire protection, warehouse buildings, storage specific application sprinkler, pre-action system, shelf layout