EPANET Calibration

[Sanjeeb]

Hello frnds

I am studying an existing distribution netowrk. Can anybody  suggest me the process of calibration in EPANET.

[Mario Castro]

Hello Sanjeeb

What do you mean by calibration, because it could take lots of meanings.

1) You have the data of the geometry and roughness of pipes, valves, pumps and hydr. structures

and having the flow/pressure at some measurement points you want to know check if the system behaves

like you expect.

2) You don't have the data of the pipes and then you have a typical design problem.

3) you have some information and need to enhance understanding of a subsector?

Please let us know what kind of data you have, even available software (MATLAB is a good starting point) 

and for example if you have used the Epanet2.0 toolkit before.

And remember calibration becomes an optimization problem so maybe some prior knowledge of Genetic Algorithms

of heuristic algorithms is required due to the characteristics of any Water Distribution Network.

best regards

Mario CASTRO GAMA
PhD Researcher ICeWater project
UNESCO-IHE, Integrated Water Systems and Governance
Westvest 7, 2611AX.
Delft, The Netherlands.
m(dot)castrogama(at)unesco(score)ihe(dot)org

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From: Sanjeeb
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Date: 26-12-2012 07:48
Subject: [epanetD] EPANET Calibration

Hello frnds

I am studying an existing distribution netowrk. Can anybody  suggest me the process of calibration in EPANET.

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[Sanjeeb Mohapatra]

Hello Mario

The distribution network on which I am working is of intermittent type. So I have modified the network and instead of doing demand driven, i am doing pressure driven analysis. I have collected pressure and flow rate values from the field and found a correlation of 0.906 for pressure. 

My roughness values are from literature, not  experimental. 

 

Thank you

Sanjeeb Mohapatra
M Tech Environmental Engineering 
Environmental System Design and Modeling
National Environmental Engineering Research Institute,Nagpur
Manipal Institute of Technology,Manipal
Mob-09881149452
        09019856664 

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From: Mario Castro <m.cast...@unesco-ihe.org>
To: epa...@googlegroups.com
Sent: Thursday, 27 December 2012 3:28 PM
Subject: Re: [epanetD] EPANET Calibration

[Mario Castro]

Hello

Happy new year

1) So what variable you want to change for the calibration process?

2) If your network is intermittent, maybe Epanet per se is not the best alternative. Your problem is pressure driven instead of demand driven.

3) For the optimization problem you'll need almost certainly to use a heuristic algorithm coupled to Epanet (toolkit)

best regards

Mario CASTRO GAMA
PhD Researcher ICeWATER project

Integrated Water Systems & Governance Department

UNESCO-IHE Institute for Water Education
P.O. BOX 3015, 2601 DA Delft, The Netherlands

m(dot)castrogama(at)unesco(score)ihe(dot)org

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To: "epa...@googlegroups.com" <epa...@googlegroups.com>
From: Sanjeeb Mohapatra
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Date: 27-12-2012 11:30