EPANET - Nodes

The EPANET Nodes in the SOLIDOS program are the point devices in Pressure Networks.

EPANET has 3 types of nodes:

1. Junctions - points in the network where Links come together and where water enters or leaves the network
2. Tanks - are nodes with storage capacity, where the volume of water stored can vary over time during a simulation
3. Reservoirs - are nodes that represent an external infinite source or sink of water to the network

These nodes share the following properties:

• Calculations - are filled in by the command EPANETCALC, when it succeeds in the simulation
  • Pressure - Calculated pressure at the node
  • Quality - Current water quality computed in the node
• Epanet
  • Elevation - Elevation of the junction
    It must be linked to device geometry/location, through one of the EPANET linking activities:
    • Junction
    • Tank
    • Reservoir
    
    This property will be defined in the activity properties, in the Constructor:
    
    
    In the properties frame:
    
    
• Quality
  • Quality Pattern - Pattern used to make the font quality vary over time
  • Source Quality - Baseline or average concentration (or mass flow rate) of the source
  • Initial Quality - Water quality level at the junction at the start of the simulation
  • Source Type - Nodes where the quality of the external stream entering the network is specified
    They can represent major treatment works, a wellhead or satellite treatment facility, or an unwanted contaminant intrusion, can be:
    • Concentration - A concentration source fixes the concentration of any external inflow entering the network at a node, such as flow from a reservoir or from a negative demand placed at a junction
    • Mass Booster - A mass booster source adds a fixed mass flow to the one that enters the node from other points in the network
    • Setpoint Booster - A setpoint booster source fixes the concentration of any flow leaving the node (as long as the resulting concentration of all inflow to the node is below the setpoint). adjustment)