Water Supply Design
Many engineering consultancies in India still use static modelling software like LOOP or Excel spreadsheets to design water supply projects. This software’s are not suitable for dynamic modelling of the system nor can model valves and storage tanks in real time scenario. Even state water authority engineers are either unaware or are not trained in using dynamic modelling software. One of the reasons these software are not used is the exorbitant price tag they come with; but here is a software with dynamic modelling capabilities and water quality modelling ability absolutely FREE to anyone - EPANET.
Developed by EPA's Water Supply and Water Resources Division, EPANET is software that models water distribution piping systems. It is a Windows 95/98/NT/XP program that performs extended-period simulation of the hydraulic and water quality behavior within pressurized pipe networks.
Pipe networks consist of pipes, nodes (pipe junctions), pumps, valves, and storage tanks or reservoirs. EPANET tracks the flow of water in each pipe, the pressure at each node, the height of the water in each tank, and the concentration of a chemical species throughout the network during a simulation period. Chemical species, water age, source, and tracing can be simulated.
EPANET provides an integrated computer environment for editing network input data, running hydraulic and water quality simulations, and viewing the results in a variety of formats. These include color-coded network maps, data tables, time series graphs, and contour plots.
EPANET is public domain software that may be freely copied and distributed.
Capabilities
EPANET provides a fully equipped, extended-period hydraulic analysis package that can:
In addition, EPANET's water quality analyzer can:
EPANET's Windows user interface provides a visual network editor that simplifies the process of building piping network models and editing their properties. Various data reporting and visualization tools are used to assist in interpreting the results of a network analysis. These include graphical views (e.g., time series plots, profile plots, and contour plots), tabular views, and special reports (e.g., energy usage, reaction, and calibration).
Applications
EPANET was developed to help water utilities maintain and improve the quality of water delivered to consumers through distribution systems. It can be used to design sampling programs, study disinfectant loss and by-product formation, and conduct consumer exposure assessments. It can assist in evaluating alternative strategies for improving water quality, such as altering source use within multi-source systems, modifying pumping and tank filling/emptying schedules to reduce water age, using booster disinfection stations at key locations to maintain target residuals, and planning cost-effective programs of targeted pipe cleaning and replacement.
EPANET can also be used to plan and improve a system's hydraulic performance. The software can assist with pipe, pump, and valve placement and sizing; energy minimization; fire flow analysis; vulnerability studies; and operator training.
Many engineering consultancies in India still use static modelling software like LOOP or Excel spreadsheets to design water supply projects. This software’s are not suitable for dynamic modelling of the system nor can model valves and storage tanks in real time scenario. Even state water authority engineers are either unaware or are not trained in using dynamic modelling software. One of the reasons these software are not used is the exorbitant price tag they come with; but here is a software with dynamic modelling capabilities and water quality modelling ability absolutely FREE to anyone - EPANET.
Developed by EPA's Water Supply and Water Resources Division, EPANET is software that models water distribution piping systems. It is a Windows 95/98/NT/XP program that performs extended-period simulation of the hydraulic and water quality behavior within pressurized pipe networks.
Pipe networks consist of pipes, nodes (pipe junctions), pumps, valves, and storage tanks or reservoirs. EPANET tracks the flow of water in each pipe, the pressure at each node, the height of the water in each tank, and the concentration of a chemical species throughout the network during a simulation period. Chemical species, water age, source, and tracing can be simulated.
EPANET provides an integrated computer environment for editing network input data, running hydraulic and water quality simulations, and viewing the results in a variety of formats. These include color-coded network maps, data tables, time series graphs, and contour plots.
EPANET is public domain software that may be freely copied and distributed.
Capabilities
EPANET provides a fully equipped, extended-period hydraulic analysis package that can:
- Handle systems of any size
- Compute friction head loss using the Hazen-Williams, the Darcy Weisbach, or the Chezy-Manning head loss formula
- Include minor head losses for bends, fittings, etc.
- Model constant or variable speed pumps
- Compute pumping energy and cost
- Model various types of valves, including shutoff, check, pressure regulating, and flow control
- Allow storage tanks to have any shape (i.e., surface area can vary with height)
- Consider multiple demand categories at nodes, each with its own pattern of time variation
- Model pressure-dependent flow issuing from emitters (sprinkler heads)
- Base system operation on simple tank level or timer controls as well as on complex rule-based controls
In addition, EPANET's water quality analyzer can:
- Model the movement of a non-reactive tracer material through the network over time
- Model the movement and fate of a reactive material as it grows (e.g., a disinfection by-product) or decays (e.g., chlorine residual) over time
- Model the age of water throughout a network
- Track the percent of flow from a given node reaching all other nodes over time
- Model reactions both in the bulk flow and at the pipe wall
- Allow growth or decay reactions to proceed up to a limiting concentration
- Employ global reaction rate coefficients that can be modified on a pipe-by-pipe basis
- Allow for time-varying concentration or mass inputs at any location in the network
- Model storage tanks as being complete mix, plug flow, or two-compartment reactors
EPANET's Windows user interface provides a visual network editor that simplifies the process of building piping network models and editing their properties. Various data reporting and visualization tools are used to assist in interpreting the results of a network analysis. These include graphical views (e.g., time series plots, profile plots, and contour plots), tabular views, and special reports (e.g., energy usage, reaction, and calibration).
Applications
EPANET was developed to help water utilities maintain and improve the quality of water delivered to consumers through distribution systems. It can be used to design sampling programs, study disinfectant loss and by-product formation, and conduct consumer exposure assessments. It can assist in evaluating alternative strategies for improving water quality, such as altering source use within multi-source systems, modifying pumping and tank filling/emptying schedules to reduce water age, using booster disinfection stations at key locations to maintain target residuals, and planning cost-effective programs of targeted pipe cleaning and replacement.
EPANET can also be used to plan and improve a system's hydraulic performance. The software can assist with pipe, pump, and valve placement and sizing; energy minimization; fire flow analysis; vulnerability studies; and operator training.
Download it here.
For more tools and software visit the Design tools and software page
Conduits, Culverts and Pipes - USACE
Design of Small Water Systems - USACE
Engineering and Design, Water Supply - General Considerations - USACE
Engineering and Design Water Supply - Water Sources - USACE
Engineering and Design, Water Supply - Water Treatment - USACE
Engineering and Design, Water Supply - Water Storage - USACE
Engineering and Design, Water Supply - Water Distribution - USACE
Engineering and Design, Water Supply - Fire Protection - USACE
For more tools and software visit the Design tools and software page
Conduits, Culverts and Pipes - USACE
Design of Small Water Systems - USACE
Engineering and Design, Water Supply - General Considerations - USACE
Engineering and Design Water Supply - Water Sources - USACE
Engineering and Design, Water Supply - Water Treatment - USACE
Engineering and Design, Water Supply - Water Storage - USACE
Engineering and Design, Water Supply - Water Distribution - USACE
Engineering and Design, Water Supply - Fire Protection - USACE
