The Water Networks Modelling training in EPANet was conducted in Pune on 15th and 16th of December 2012. The training was conducted at the Hotel Studio Estique in City Centre and consisted two 6hr sessions of hands on experience in modelling water supply schemes. Trainees were from varied brackgrounds from consultancies and academics to NGO. We had attendees from Infosys, Ramky Infrastructure Ltd, CEPT University, Aga Khan Foundation and JMC Project Ltd. The trainees were provided with softwares, step by step guide to modelling and various resources to help with water networks modelling.
The training focused on hands on experience in using EPAnet to model various water supply elements, importing and exporting networks, integration with AutoCAD and Excel and analysing the network to get optimised result. The training session also included modelling practical situations in water supply where borewells, BPTs, pumping stations, pumping mains, storage tanks etc are involved.
All our trainees gave a very good feedback about the content, instructor and the overall training. The trainees were also provided with certificates in water networks modelling using EPANet.
The Community Engineer announces its next scheduled training on water networks modelling in Pune. The training will be conducted on 15th and 16th of December 2012. The training will consist a two day 12 hr session with hands on training in using EPAnet for analysis and design of water networks. The training will include presentations, step by step tutorials and will dedicate on practical modelling situations.
By the end of the training the aprticipants will:
Please see our training brief here.
Check out our training page for all the trainings we offer.
Participants shall be provided with tea and lunch during the session.
Accomodation has to be arranged by the participants themselves.
Participants are expected to bring their own laptop to work on tutorials and problem sets.
Can I model drip irrigation/sprinklers in EPANET?
Use the emitter option in EPANET. Use a default coefficient of 0.5. For accurate results this can be calculated based on the manufacturers specifications.
see Drip Irrigation Design Guidelines by Jess Stryker for more details
Can I model a borewell source in EPAnet?
All sources can be represented by a reservoir in EPAnet. A head pattern can be utilised to model the draw down curve if data is available. Headloss through the screens and piping can be modelled by using pipes and loss coefficients.
Can I model pumping main in EPANET?
EPAnet is not the ideal software for modelling a pumping main. Modelling a pumping main requires transient analysis, for which specialised software is available and more important an expert in surge analysis.
How do I model a Variable Speed Pump?
Use the control statements to define the relative speed of the pump with respect to the flow. EPAnet applies the pump affinity law to calculate the corresponding head - discharge relationship.
How do I calculate the balancing storage?
Balancing storage can be calculated using the mass curve method.
A mass diagram is the plot of accumulated inflow (i.e. supply) or outflow (i.e. demand) versus time. The mass curve of supply (i.e. supply line) is, therefore, first drawn and is superimposed by the demand curve. The procedure to construct such diagram is as follows:
From the past records, determine the hourly demand for all 24 hours for typical days (maximum, average and minimum).
Calculate and plot the cumulative demand against time, and thus plot the mass curve of demand.
Read the storage required as the sum of the two maximum ordinates between demand and supply line.
Repeat the procedure for all the typical days (maximum, average and minimum), and determine the maximum storage required for the worst day.
How do I fix the storage capacity of tanks?
The total storage capacity of a distribution reservoir will depend on the following.
Balancing Storage: The quantity of water required to be stored in the reservoir for equalising or balancing fluctuating demand against constant supply is known as the balancing storage.
Breakdown Storage: The breakdown storage or often called emergency storage is the storage preserved in order to tide over the emergencies posed by the failure of pumps, electricity, or any othe mechanism driving the pumps. A value of about 25% of the total storage capacity of reservoirs, or 1.5 to 2 times of the average hourly supply, may be considered as enough provision for accounting this storage.
Fire Storage: The third component of the total reservoir storage is the fire storage. This provision takes care of the requirements of water for extinguishing fires. A provision of 1 to 4 per person per day is sufficient to meet the requirement.
How do I model a Check Valve in EPANET?
Insert a link where a check valve needs to be modelled and then change the status to CV. This converts the link to a check valve (check reverse flow).
How do I model a Break Pressure Tank (BPT) ?
The simplest form of modelling a BPT is to model it as a tank with relevant elevation and storage. However since the tanks in EPAnet are modelled as connected from tank bottom, it is preferable to model the tank with a PSV in the upstream with a pressure setting = 0 (atmospheric pressure) and a check valve at the downstream to check reverse flow.
The community Engineer is not yet another site for knowledge transfer. This has been designed to empower and support engineers at grass root level to work more efficiently in contributing to the growth of the country. This is for the inexperienced, who needs exposure to best practices and tools to help them perform better. Purposefully hence this is not a forum for state of the art technologies, but for a practical approach to our all the more practical problems.
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