The density and viscosity of water are built into the HazenWilliams equation and so the frictional pressure loss will not change. In other words, the Hazen-Williams equation should be used for calculating the frictional pressure loss in pipes. According to the NFPA rules, this should be treated just like water. Foam Solution System: This is a system in which the foam concentrate is already mixed with water. The procedure to follow is described below. Performing a PIPENET calculation, whilst following these rules, is simple. 7.4.1.4* The friction losses in piping carrying foam concentrate shall be calculated using the Darcy-Weisbach formula. 7.4.1.3.1 Piping carrying foam solution shall be sized as if carrying plain water. 7.4.1.3 Hydraulic calculations for piping carrying water or the foam solution shall be in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems. NFPA 16: Standard for the Installation of Foam-Water Sprinkler and Foam-Water Spray Systems 2011 specifies the following rules for hydraulic calculations for foam systems: 7.4 Hydraulic Calculations 7.4.1 Foam-Water Deluge Systems. Modelling Foam Concentrate Systems In PIPENET Spray/Sprinkler Use Autosave and enjoy the peace of mind that your data will be saved frequently. Please also note that if you wish to save the data for a scenario, you will need to change the file name. The AutoSave dialog can be found in File | Autosave. Step 1 - Manually save your file in the folder of your choice
The default is zero, indicating that the Autosave feature is disabled. Select this option to set the interval, in minutes, at which the network is to be automatically saved. This can be done automatically after you have saved it to the location of your choice for the first time.Īutosave is a feature that can be used to automatically save your edits and modifications periodically.
It is good practice to save your work frequently as you work. PIPENET - Leading The Way In Fluid Flow Analysis This makes modelling in PIPENET even more flexible. This ensures the calculation continues smoothly where the simple accumulator is used with network dead-ends. In some cases, the diaphragm accumulator is used to model dead-ends in a dry deluge system. PIPENET VISION 1.8.0 Transient Module enhances the existing model by introducing the diaphragm type accumulator. Some accumulators cant drain because gas is sealed in a diaphragm. PIPENET will terminate the calculation automatically if this happens. Generally an simple type accumulator does not allow draining because it is an undesirable for gas to escape to the network. This structure is usually used in large tanks. The original accumulator model (simple type) in PIPENET did not have a diaphragm to contain gas medium.
SUNRISE PIPENET REVIEW HOW TO
How to use the diaphragm accumulator for modelling dead ends in a dry deluge system.Īpplications of Diaphragm Accumulator In PIPENET In PIPENET Vision 1.8.0 there are two accumulator types.Īpplications Of The Diaphragm Accumulator in PIPENET Simplified Design & Analysis in PIPENET Spray/Sprinkler The PIPENET design and analysis dialog box is easier to use!Īccumulators are widely used to reduce pressure surge. Check you are already using PIPENET VISION 1.8.0 and be ready to upgrade.
SUNRISE PIPENET REVIEW DOWNLOAD
From today the service pack, PIPENET Vision 1.8.1 is available to download from our website for registered customers with valid Maintenance, Updates and Support. PIPENET Vision 1.8.1 - is the latest version of PIPENET.