Preprints
https://doi.org/10.5194/dwesd-5-351-2012
https://doi.org/10.5194/dwesd-5-351-2012
09 Jul 2012
 | 09 Jul 2012
Status: this preprint was under review for the journal DWES but the revision was not accepted.

Reliability of water distribution networks due to pumps failure: comparison of VSP and SSP application

N. Mehzad, M. Tabesh, S. S. Hashemi, and B. Ataee Kia

Abstract. Reliability is an important indicator to ensure the operation of Water Distribution Networks (WDNs). To optimize the operation of WDN, it is necessary to incorporate the reliability of active components (such as pumps and tanks) besides the reliability of pipes. In this research, a concept is suggested to calculate the reliability of WDNs' pumping stations. A computer code is provided in Visual Basic and is linked to EPANET2.0. To evaluate the proposed methodology a real WDN near the city of Tehran is considered. According to the obtained results, it is concluded that by increasing the demand of the WDN during a day, the reliability of pumps decrease. Therefore, it seems that decision-making is necessary if high demand hours are considered, in order to increase the reliability of the system. On the other hand, it is observed in this research that using variable speed pumps not only reduces the energy cost of the network, but also the reliability of the pumping stations with variable speed pumps is higher than single speed pumps. Therefore, using VSP is highly recommended in WDNs.

N. Mehzad, M. Tabesh, S. S. Hashemi, and B. Ataee Kia
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
N. Mehzad, M. Tabesh, S. S. Hashemi, and B. Ataee Kia
N. Mehzad, M. Tabesh, S. S. Hashemi, and B. Ataee Kia

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