This functionality allows you to apply different demands to one or multiple junctions and hydrants, and check how that affects your network.
Demand spike can be used for fire-flow analysis, main conditioning, unidirectional flushing, new development scenarios, criticality analysis, permitting etc.
To start using Demand Spike you just have to:
- Select in the timeline the time that you wish to use Demand Spike
- Click on the Demand Spike panel button on the right side to display the panel
- Select a junction or hydrant on your map
- Click or move the slider to the desired demand within the calculated range
As easy as that! Qatium will automatically run a simulation with the new demand value applied at the selected junction. If you want to change the demand on multiple junctions, just repeat the action with the next ones.
Qatium shows the resulting pressure in:
- Green if the value is considered normal, above 20 mwc or 20 psi
- Orange if the value is considered poor, below or equal to 20 mwc or 20 psi
- Red if the value is considered faulty, below or equal to 10 mwc or 10 psi
All done? You can press the Reset button on the panel to reset the value for a selected junction. And to start again and revert to the base model, click on the bin in the Work mode panel.
Demand spike is applied from a specific time onwards. E.g: applying the feature at 12 am might not result in the same state of the network as applying it at 4 pm.
You can close the Demand Spike panel without losing any value or the selected junction, Qatium will remember your selection the next time you open the panel.
Tips from Q:
Click and hold on to the slider and use your keyboard arrows to make smaller demand changes.
If you’re testing a flushing sequence, activate the flushing theme to visualize discoloration risk areas and if your pipes reach optimal velocities.