Hi,
I have site data for PRV's in my model.
For flow modulated PRV's I have data such as;
PRV-1
and for the time modulated PRV's I have data such as;
PRV-2
I want to ask that is it possible import this data from model builder and if it's possible how can I import this data from modelbuilder.
Regards
Hi Jesse and Yashodhan
Thanks for your help.
"Option 2: 08.09.400.34 through V8i (and for importing controls from a spreadsheet)" worked for us and it is suitable for our project.
Controls can be imported, but the source data must be in a specific format. See: How to import and export controls between models in WaterCAD and WaterGEMS
The article that Yashodhan provided has some information on importing valve patterns, but for a PRV or PSV if you want to change the pressure or HGL setpoint over time, you would want to use the "Pattern (valve settings)". This consists of a table of time vs. multiplier, so your data source would need to have a column that has the multiplier needed to achieve the desired pressure or HGL setpoint (the multiplier multiplies against the initial setting).
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.
Answer Verified By: Mehmet Ayan
Hi Jesse,
We are building a live model with in communicate with our other systems, so we need to import controls from our Database is there any way to import these controls without touching the human interface.
If you are wanting to change the pressure setpoint of a PRV or PSV over time, you could also use time-based logical controls, with the control action to change the valve's "pressure valve pressure" (for pressure) or "pressure valve setting" (for hydraulic grade). You would only need to create controls for the times when the setting changes (01:05 and 6:05 using the PRV-2 example)
Mehmet Ayan said:flow modulated PRV's
How do these work? It sounds as if you want to set both the pressure and flow at the same time, which may not be possible.
Hello Mehmet,
You can use the first method "Importing Patterns using ModelBuilder" to import time based patterns as you have for PRV-2.
However, for PRV-1 you can try and specify the conditions as per the valve characteristic curve which is a relation between Relative Closure (%) and Relative Discharge Coefficient (%). These parameters have to be derived from the data you have.
Hope this helps.
Yashodhan Joshi