Pipe criticality analysis for water distribution systems

K. R. Piratla, Samuel Ariaratnam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An approach to evaluate the relative criticality of different pipes in a water distribution system is presented. To quantify the relative criticality of pipelines, a term "Relative Criticality Index (RCI)" has been defined and measured. RCI was developed by summing up the effects of reliability, cost of break repairs and energy required to repair breaks. These three components have been quantified and added appropriately to obtain an overall criticality index of pipelines in water distribution systems. The model is demonstrated by using a 9.4 square mile area of a water distribution system comprising downtown Phoenix, Arizona. The availability of the study area was estimated to be 46.6 and the relative criticality index indicates that galvanized steel pipes followed by regular steel and ductile iron pipes in the system are critical (i.e. vulnerable) for the system considered. The analysis also presents predicted future costs and energy requirements to repair breaks in the water distribution system for a 20 year analysis period. The results indicate that the expenditures to repair pipe breaks in the system for the analysis period is estimated to be $17.1 million. Additionally, the energy required to repair these breaks during the same timeframe would be 2,486 MWH. A Relative Criticality Index (RCI), along with future requirements of critical resources, should aid cities in better planning and managing of their water distribution systems.

Original languageEnglish (US)
Title of host publicationPipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference
Pages1430-1441
Number of pages12
DOIs
StatePublished - 2011
EventPipelines 2011: A Sound Conduit for Sharing Solutions - Seattle, WA, United States
Duration: Jul 23 2011Jul 27 2011

Other

OtherPipelines 2011: A Sound Conduit for Sharing Solutions
CountryUnited States
CitySeattle, WA
Period7/23/117/27/11

Fingerprint

Water distribution systems
repair
Repair
pipe
Pipe
Pipelines
steel
energy
Nodular iron
Steel
Steel pipe
cost
expenditure
Costs
analysis
index
water distribution system
Availability
Planning
iron

Keywords

  • Pipes
  • Water distribution systems
  • Water pipelines

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

Cite this

Piratla, K. R., & Ariaratnam, S. (2011). Pipe criticality analysis for water distribution systems. In Pipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference (pp. 1430-1441) https://doi.org/10.1061/41187(420)132

Pipe criticality analysis for water distribution systems. / Piratla, K. R.; Ariaratnam, Samuel.

Pipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference. 2011. p. 1430-1441.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Piratla, KR & Ariaratnam, S 2011, Pipe criticality analysis for water distribution systems. in Pipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference. pp. 1430-1441, Pipelines 2011: A Sound Conduit for Sharing Solutions, Seattle, WA, United States, 7/23/11. https://doi.org/10.1061/41187(420)132
Piratla KR, Ariaratnam S. Pipe criticality analysis for water distribution systems. In Pipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference. 2011. p. 1430-1441 https://doi.org/10.1061/41187(420)132
Piratla, K. R. ; Ariaratnam, Samuel. / Pipe criticality analysis for water distribution systems. Pipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference. 2011. pp. 1430-1441
@inproceedings{0d021301ee594afcba245f31497ec12a,
title = "Pipe criticality analysis for water distribution systems",
abstract = "An approach to evaluate the relative criticality of different pipes in a water distribution system is presented. To quantify the relative criticality of pipelines, a term {"}Relative Criticality Index (RCI){"} has been defined and measured. RCI was developed by summing up the effects of reliability, cost of break repairs and energy required to repair breaks. These three components have been quantified and added appropriately to obtain an overall criticality index of pipelines in water distribution systems. The model is demonstrated by using a 9.4 square mile area of a water distribution system comprising downtown Phoenix, Arizona. The availability of the study area was estimated to be 46.6 and the relative criticality index indicates that galvanized steel pipes followed by regular steel and ductile iron pipes in the system are critical (i.e. vulnerable) for the system considered. The analysis also presents predicted future costs and energy requirements to repair breaks in the water distribution system for a 20 year analysis period. The results indicate that the expenditures to repair pipe breaks in the system for the analysis period is estimated to be $17.1 million. Additionally, the energy required to repair these breaks during the same timeframe would be 2,486 MWH. A Relative Criticality Index (RCI), along with future requirements of critical resources, should aid cities in better planning and managing of their water distribution systems.",
keywords = "Pipes, Water distribution systems, Water pipelines",
author = "Piratla, {K. R.} and Samuel Ariaratnam",
year = "2011",
doi = "10.1061/41187(420)132",
language = "English (US)",
isbn = "9780784411872",
pages = "1430--1441",
booktitle = "Pipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference",

}

TY - GEN

T1 - Pipe criticality analysis for water distribution systems

AU - Piratla, K. R.

AU - Ariaratnam, Samuel

PY - 2011

Y1 - 2011

N2 - An approach to evaluate the relative criticality of different pipes in a water distribution system is presented. To quantify the relative criticality of pipelines, a term "Relative Criticality Index (RCI)" has been defined and measured. RCI was developed by summing up the effects of reliability, cost of break repairs and energy required to repair breaks. These three components have been quantified and added appropriately to obtain an overall criticality index of pipelines in water distribution systems. The model is demonstrated by using a 9.4 square mile area of a water distribution system comprising downtown Phoenix, Arizona. The availability of the study area was estimated to be 46.6 and the relative criticality index indicates that galvanized steel pipes followed by regular steel and ductile iron pipes in the system are critical (i.e. vulnerable) for the system considered. The analysis also presents predicted future costs and energy requirements to repair breaks in the water distribution system for a 20 year analysis period. The results indicate that the expenditures to repair pipe breaks in the system for the analysis period is estimated to be $17.1 million. Additionally, the energy required to repair these breaks during the same timeframe would be 2,486 MWH. A Relative Criticality Index (RCI), along with future requirements of critical resources, should aid cities in better planning and managing of their water distribution systems.

AB - An approach to evaluate the relative criticality of different pipes in a water distribution system is presented. To quantify the relative criticality of pipelines, a term "Relative Criticality Index (RCI)" has been defined and measured. RCI was developed by summing up the effects of reliability, cost of break repairs and energy required to repair breaks. These three components have been quantified and added appropriately to obtain an overall criticality index of pipelines in water distribution systems. The model is demonstrated by using a 9.4 square mile area of a water distribution system comprising downtown Phoenix, Arizona. The availability of the study area was estimated to be 46.6 and the relative criticality index indicates that galvanized steel pipes followed by regular steel and ductile iron pipes in the system are critical (i.e. vulnerable) for the system considered. The analysis also presents predicted future costs and energy requirements to repair breaks in the water distribution system for a 20 year analysis period. The results indicate that the expenditures to repair pipe breaks in the system for the analysis period is estimated to be $17.1 million. Additionally, the energy required to repair these breaks during the same timeframe would be 2,486 MWH. A Relative Criticality Index (RCI), along with future requirements of critical resources, should aid cities in better planning and managing of their water distribution systems.

KW - Pipes

KW - Water distribution systems

KW - Water pipelines

UR - http://www.scopus.com/inward/record.url?scp=80053340037&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053340037&partnerID=8YFLogxK

U2 - 10.1061/41187(420)132

DO - 10.1061/41187(420)132

M3 - Conference contribution

AN - SCOPUS:80053340037

SN - 9780784411872

SP - 1430

EP - 1441

BT - Pipelines 2011: A Sound Conduit for Sharing Solutions - Proceedings of the Pipelines 2011 Conference

ER -