Functional mapzones basics

INLET SECTOR (I-SECTOR)
Network subgraph defined as subgraph area limited by inlets (Tank or Reservoir). It is the minimum unit for hydraulic calculation since it contains the water supply.

Goal:

• Minimum unit for hydraulic calculation with no the water supply.

Outline condition:

• Storage / Supply tanks / Reservoirs.
• Shut-off valves.

Necessary conditions:

• These sectors cannot contain customers.

Generic conditions:

• Flow meters or pressure meters are not considered.
• Pressure reducing valves and pressure groups are not considered.
  
  

SUPPLY SECTOR (S-SECTOR)
Network subgraph defined as subgraph area limited by inlets (Tank or Reservoir) and closed valves with customers which they consume water.

Goal:

• Minimum unit for hydraulic calculation since it contains the water supply.

Outline condition:

• Storage / Supply / Queue tanks.
• Shut-off valves.
• Impulse.

Necessary conditions:

• That one or more nodes of the subgraph contain customer consumption.

Generic conditions:

• Flow meters or network meters are not considered.
• Pressure reducing valves and pressure groups are not considered.
• The actual volume of the tanks and the actual configuration of the inputs / outputs are not considered.
  
  

MINIMUM SECTOR (MINSECTOR)
Related subgraphs of the LOW SECTOR graph, sectioned by the shut-off valves.

Goal:

• Minimum network affected in case of breakdown.
• Minimum number of clients affected by the supply cut due to the breakdown.
• Breakdown probability calculation.
• Effects on the hydraulic behavior of the network (LOW SECTOR) if the MINIMUM SECTOR is removed from the graph as a result of a breakdown.

Outline condition:

• Shut-off valves as disconnection points of the LOW SECTOR graph.
  
  

DISTRICT METER AREA (DMA)
Network subgraph defined as subgraph area limited by meters and closed valves. It is the subgraph unit to make measurements of water balances for network.

Goal:

• Minimum flow balance unit, between the input / output flow of the DMA sector and the consumption of customers.
• Calculation of water losses and Not Revenue Water (NRW).

Outline condition:

• Flow meters and network meters as disconnection points of the LOW SECTOR graph.
• That one or more nodes of the subgraph contain customer consumption.
  
  

PRESSURE SECTOR (PRESSZONE)
Network subgraph defined as subgraph area limited by pressure regulation elements.

Goal:

• Calculation of the maximum and minimum static pressure supplied to the customers, a function of the maximum and minimum pressure of the regulation equipment (tank, reducing valve and pressure group) and the level of the connection.
• They take the cadastral data of building heights, calculation of the real maximum and minimum static pressure.
• Calculation of the minimum admissible losses.

Outline condition:

• Pressure reducing valves and pressure groups of the network as disconnection points of the LOW SECTOR graph.
  
  

DISTRICT QUALITY AREA (DQA)
Network subgraph defined as subgraph area limited by quality regulation and quality measurement elements.

Goal:

• Used to define quality water areas.
• Calculation of the k of decrease of chlorine.
• Time of permanence of the water.

Boundary conditions:

• Graph between sensors of the quality parameters analyzed.
• Shut-off valves.

Necessary conditions:

• Real volume of the tanks and real configuration of the inputs / outputs.

Generic conditions:

• Flow meters or network meters are not considered.
• Pressure reducing valves and pressure groups are not considered.
• Impulses are not considered.