Cpye--CYPEFIRE Hydraulic Systems

Scope of the application

CYPEFIRE Hydraulic Systems allows the sizing and design of hydraulic fire extinguishing networks using sprinklers and fire hose reels (FHR) in accordance with different predefined codes, as well as designing installations by creating customised configurations for calculating other codes or for personal technical purposes.

Program properties

CYPEFIRE Hydraulic Systems allows users to design, analyse and size a fire extinguishing installation composed of sprinklers. The program carries out the necessary hydraulic calculations and checks to ensure the requirements of the NFPA®13 standard are met. These include:

• Hydraulic design of grid and branch systems
• Horizontal and vertical pipes
• Flow and minimum pressure in the sprinklers
• Distribution of the sprinklers

          Maximum allowable distance between sprinklers

          Maximum distance between the sprinklers and the wall

• Design of the tank
• Design of the fire hose reels

Hydraulic calculation

Calculation engine

CYPEFIRE Hydraulic Systems uses the EPANET 2 calculation engine (developed by Water Supply and Water Resources Division National Risk Management Research Laboratory) to carry out the hydraulic calculations necessary for designing sprinkler networks and fire hose reels (FHR).

EPANET provides accurate calculation results, which are suitable for compliance with any of the codes available in the application or those that are manually entered by the user.

EPANET allows calculation equations to be selected for solving load loss equations. By default CYPEFIRE Hydraulic Systems calculates according to the Hazen-Williams equation but can be solved using the Darcy-Weisbach equation, which is required for certain cases in the NFPA 13 code.

Sprinklers

CYPEFIRE Hydraulic Systems allows the following types of sprinklers to be used:

• Standard Sprinkler
• Standard Sprinkler Sidewall
• Residential Sprinkler
• ESFR Sprinkler

As well as their typology, the application allows all operation-related parameters to be modified (orientation in the installation, K factor, sprinkler thread size and response speed). Sprinklers can be defined either within the program or imported from the CYPEFIRE Hydraulic Systems predefined sprinkler library.

Introducing and designing sprinkler networks requires careful consideration due to the geometrical checks that must be carried out to comply with each of the codes. To facilitate and speed up this process, CYPEFIRE Hydraulic Systems offers different ways of introducing sprinkler networks.

• Manual introduction
• Individual introduction for each sprinkler in the system, very useful for areas with complex geometry.
• Branch introduction
• The simplest option among those available, it allows a complete branch to be introduced (selecting the type of sprinkler and pipe to be used) according to the length chosen by the user.
• Introducing a tree system
• A slightly more complex option that allows users to enter a tree system by selecting the number of sprinklers on each side and the length of the cross main.
• Introducing a gridded system
• Similar to the previous option, but this time a gridded network is introduced by defining the number of sprinklers in each of the branches.
• Generating a network
• The automatic generation of a sprinkler network allows users to decide whether they want a cross main with branch lines or a gridded network, and by simply selecting the spaces, the desired network is generated.

Fire Hose Reels (FHR)

CYPEFIRE Hydraulic Systems also allows Fire Hose Reels to be designed and analysed, either as an analysis method providing a fixed flow that oversizes the sprinkler system or as another element in the system that must comply with the minimum pressure and flow conditions necessary according to the code applied.

Load loss

CYPEFIRE Hydraulic Systems provides two ways of calculating load losses produced by the singular elements (accessories and valves) of sprinkler networks and/or fire hose reels.

• Equivalent length method
• In this case, the program increases the lengths of all the pipes in the system to consider all the accessories and valves in the network. This increase coefficient can be edited by the user and is not activated by default.

• Loss coefficient
• By default, CYPEFIRE Hydraulic Systems carries out the analysis of localised pressure losses by means of the loss coefficient of each of the accessories or valves entered in the network. Furthermore, the application can automatically generate the necessary accessories according to the pipe network entered (elbows, tees, crosses).