In order to make the most of simulation models in daily operation of a water
supply network, the models must be correctly calibrated. Traditionally,
model calibration has been a very time consuming, manual process.
With 7-SEAS (State Estimation based Application Suite) these problems are
history. The new State Estimation technique enables you to find the true
optimal calibration values for the model in only one calculation. There are
no predefined limits to the possible results.
Figure 1. 7-SEAS model calibration.
Enter the time series of pressures and flows from the latest measuring
campaign into 7-SEAS. This is very straightforward, if you have stored the
time series in Data Manager. 7-SEAS then utilizes all the information from
the measurement time series and calculates the following optimal values:
- Pipeline roughness or diameter for the individual pipelines.
- Valve positions (open/closed) for shut-off valves if unknown.
- Geographical distribution of leakage flow in the network.
If available, you can include additional information in the calculations as
regards distribution of leakage, for instance pipe material, pipe age, leak
or burst histories, etc. When such information is stored in
Model Manager, it is automatically transferred to 7-SEAS.
AQUIS 3D Color Graphics
With the 3D color graphics, you can get the ultimate overview of the 7-SEAS
calculations. You can view the geographical distribution of the leakage flow
within the network in the form of a colored mountain scenery, and you can
quickly locate the critical areas in the network.
Figure 2. 3D color surface plot of leakage intensity.