Let’s start the calculations according to the numbering process.
#Hass fire sprinkler calculation download#
Pm = Friction resistance in unit length pipe (bar / m)ĥ- Let’s start with the calculation steps of the pump flow rate and pressure loss that will occur in case of 6 sprinkling of the system. The following illustration shows the critical area. You can download the file as dwg. Sample Sprink Column Schematic: Sample Sprink Calculation Autocad Download H = desired height to calculate the pressure with ground elevation (m)ĭ) Hazen Williams Formula, Loss of Friction The Km value will vary depending on the value of your sprinkle orifice. Qm: Flow (lt / min), Pm: Pressure (bar), Km: K Factor – Metric (Units) K = 5.6 Km = 80 Fire Installation Pipe Diameters, NFPA 13-1999, Pipe Tray Methodģ- Number of sprinkles opened in the critical area is 72 m² / 12 m² = 6 pieces. In each of the points in the critical line in the 2-line table direction and in the lines outside the critical area, only the number of points with the diameter change is given.Ĥ- We will use it in calculations Identify Equivalent Length Values, Pipe Diameters, Coefficient of C, and Correction table and formulas to use.īlack Steel Pipe (Dry and pre-reacting system)Ī) Sprink Minimum Water Flow = Q = (d) x Asĭ = Design Density (lt / dk m²), As = Application area of one sprinkler (m²) – Pipe Type: Black Steel (Wet and Tough System)Ģ- After designing in the project, use diameters according to the number of sprinkles using the following NFPA table for diameter. – Km: 80 (K factor is 80 for sprinkler with nominal 1/2 “nominal ratio. – Sprinkler Protection Area: 12 m² (maximum protection area for medium danger for 1 sprinkle) – Design Density: 5 lt / dk.m² (selected from the Design Density table in Annex-8 / B Sprinkler System) – Application Area: 72 m² (Design Density in Annex-8 / B Sprinkler System is selected from the table) – Hazard Class: Medium Hazard – 1 (Selected from Annex-1 / B Medium Hazard Hazard Areas table)
Sample Sprink Calculationġ- First of all, in accordance with the regulation on the fire protection of the buildings, criteria for the building’s hazard class and sprinkle design are determined. The building we sample is the hotel The purpose of the sprinkler system to provide early response to the fire and to discharge the amount of water on the design area within a certain period of time to control and extinguish the fire. The diameter of the fixed pipe installation that supplies water to the sprinkler system should be determined according to the hydraulic calculations to be made.