Network Planning comprises of a comprehensive demand analysis module as well as hydraulic analysis of water and sewer networks. The Demand Analysis module includes unregistered connections through land-use analysis and breaks down losses into more detailed components resulting in a detailed Demand Audit (known as Non-revenue audit for water) as well as generates Design demands for engineering analysis purposes.
The main features of the modules are as follows:
Data Merge & Standards definition
- Cadastral & Billing data reconciliation
- Demand Categories & Category Relationships
- Demand Standards definition
- Land density Standard Definition
Land Usage Analysis
Plot classification into
- Developed (Authorised)
- Developed (Unauthorised-known)
- Undeveloped (Future development)
- Empty Lot
- Splits demand (found from CDE analysis) into Metered Consumption plus
un-metered consumption plus Internal Wastage and Leakage.
- Done for all types of properties and plots [Developed and undeveloped, Authorised and unauthorised]
NRW Audit (Demand Audit)
- Calculates total leakage by subtracting apparent losses from demand
- Gives for all metered areas a breakdown of non-revenue water in terms of volumes and revenues and costs for the Utility
- Uses both standard IWA classification as well as extended IWA classification to allow for non-payment as well as wastage and internal leakage
- Gives for all metered areas Key Performance Indicators including leakage index
System Component Analysis
- Forecasts demand and groups demand in demand areas corresponding to major network components
- Evaluates capacity requirements of major system components (pumps, reservoirs, bulk meters, etc.)
- Plots capacity versus size requirements with time
- In effect the module represents a live master plan for all major system components
Commercial Rehabilitation Lists
- Lists of problems dealing with meters, connections, customers addressing both authorised and unauthorised consumption
- Both graphical and numerical representation
- Lists can be managed effectively by the Commercial Rehabilitation Management module
Design Demands (Water)
- Design demand = constant demand + variable demand * peak factor, where: Constant demand = Wastage & Int. leakage + Network Leakage and Variable demand = Consumption
- Assigns constant and variable demands to pipes and subsequently to nodes
Design Loads (Sewer)
- Converts Wastage & Internal leakage to constant load and Consumption to variable load.
- Allows for additional factors such as infiltration, etc.
- Assigns constant and variable demands to pipes and subsequently to manholes
Note that the system provides output to be used in other 3rd party engineering analysis models for all disciplines. Engineering analysis modules exist for Water Supply, and Sewer Networks.
EDAMS Network Analysis brings you all the tools you need for fast and effective network design, analysis and optimisation. It’s easy to use graphical interface and strong visual tools combined with its support for digital terrain modeling make it a uniquely powerful, yet intuitive, network analysis system.
Both the Water and Sewer models share a common architecture based on industry-specific methodologies developed over the last twenty years, but offer feature-sets reflecting their target fields. Although EDAMS Network Analysis has its own graphical abilities, it also links to GIS through demand and asset management systems for demand / load generation and modeling live data. Tightly integrated with other Utility products in the EDAMS Systems range, both EDAMS Network Analysis Water and Sewer provide extensive growth paths.
EDAMS Network Analysis Modules – Main features
Powerful modelling and data handling
EDAMS Network Analysis enables you to easily and accurately model a network of any size and complexity. Using the system’s built in DTM you are also able to view modeling scenarios from a number of different graphical perspectives, with changes made to one representation simultaneously updated across all models.
Data can be manually captured or imported from ASCII files or EDAMS Network Asset Management. Network elements can then be manipulated in a schematic form or in a true-to-scale geographical representation. The visual appearance of conduits, nodes and other elements can be intuitively defined thematically. Different views of nodes, pipes and contours can be saved together and several network views can be displayed in separate windows. The built-in DTM will generate contours automatically. Such contours can represent demand, pressure and head as well as elevation, in the case of water networks, or loads on sewers and manholes.
Network Analysis: Water
Water performs fast, reliable and comprehensive hydraulic and dynamic water quality modeling, extended simulation and cost optimisation (design). Its simulation capabilities and integrated water quality components are based on the widely-used EPANET industry standard, as well as internally designed routines for issues not covered by EPANET.
Network Analysis: Sewer
Engineering analysis includes analysis, evaluation and design. Under analysis full input hydrographs are allowed and resulting hydrographs are generated at all points. Pressure flow calculations are also performed for any pumping systems in the network.
Both static and dynamic loads are generated using design standards corresponding to: Sewage from properties, additional Seepage, Infiltration and Leakage, Storm water Ingress and additional generated runoff. Geometric evaluation of all network components is also performed highlighting violations as per standards.
- Full range of data editing capabilities
- Edit elements in schematic or DTM mode
- Specify boundary conditions to model network behaviour
- Control analysis behaviour via parameters
- User-definable network elements
- Contours show demand, pressure and head or load as well as elevation
- Display multiple network views in windows
Digital Terrain Model
- Import external ground elevations from ASCII files
- DTM builds contours from node elevations if no data exists
- Contours can represent water pressures or sewer loads
- Show element data in grid or spreadsheet format
- Supports data export to Excel format
Steady State Analysis
- Control steady state analysis through run parameters
- Solve networks iteratively using linear approximations of flow
EDAMS Network Asset Management Modules – main features & more information
The table below lists the different modules of the EDAMS Asset Management & Infrastructure Planning Systems ( NAM )
|Code||Name||Brief description||Read more|
|Planning - Water & Sewer Networks|
|NAM-DEMA||Data Merge & Standards definition||Cadastral & Billing data reconciliation||EDAMS Demand Analysis - Managenent. (incl Audit) 1.0|
|Land usage analysis||Plot classification into|
|NRW Audit (Demand Audit)|
|System Component Analysis|
|Commercial Rehabilitation Lists|
|Design Demands (Water)|
|Design Loads (Sewer)|
|NAM-WAT (stand-alone system)||Water Network Analysis||EDAMS Network Planning (Water Network Analysis) 1.5|
|NAM-SEW (stand-alone system)||Sewer Network Analysis||EDAMS Network Planning (Sewer Network Analysis) 1.4|