Effect of irrigation intensity design value dictating the sprinkler on the hydraulic parameters of the distribution network AFES

Abstract

Consider the enabling factors that contribute to an effective fire fighting, and adverse factors that hinder effective fire fighting. The distribution of the flow rate of each irrigator and the total flow rate of AFES of different distribution networks with sequential activation of all irrigators located on each of the protected dictating areas, with the total flow rate of AFES not more than 10 l/s and at the initial intensity of the dictating sprinkler inorm > icalc = 0.06 l/(sec · m²) and inorm = 0.08 l/(sec · m²). It is shown that if the diameters of the distribution network pipelines are chosen correctly, then even with the normative value of the intensity of irrigation of the dictating sprinkler, the total flow rate of the AFES with the activation of four irrigators, calculated according to the method given in Set of rules 5.13130.2009, may be less than the normative value by about 1.5 times due to which the protected dictating area is expanded compared to the normative Snorm = 60 m².