Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania
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MunServNet - Component B - 1 st Expert panel 11-1 3 J ul y 2006, Chania. Target and policy for leakage management in Debrecen. Zoltán Karácsonyi University of Debrecen Centre for Environmental Management and Policy József Ányos Debrecen Waterworks Co. Challenges. National level

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MunServNet - Component B - 1 st Expert panel 11-1 3 J ul y 2006, Chania

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Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

MunServNet - Component B - 1st Expert panel11-13 July 2006, Chania

Target and policy for leakage management in Debrecen

Zoltán Karácsonyi

University of Debrecen

Centre for Environmental Management and Policy

József Ányos

Debrecen Waterworks Co.


Challenges

Challenges

  • National level

    • Public water service

      • 70% residential consumption

      • 30 % industrial/collective consumption

    • Water loss: ~19% (National Report of Water Framework Directive 2005)


General overview debrecen

General overview - Debrecen

  • Constructive works of drinking water supply:

    • main water pipe

    • main water meter

    • subordinate water meter

    • pressure intensifier

  • Main water pipe

    • 645,3 km

    • diameter: 80-800 mm

    • material: cast iron, steel, asbestos cement, PVC, polyethylene


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

Leakage control in Debrecen

  • Accessability to the network: 99,9 %

  • Water production cap.: 55.000 m3/day

  • Water network: 645,3 km

  • Sold water: 13,735 M m3/year

  • Technical loss: 3,089 M m3 /year

  • Loss of water: 22,4 %/year

  • Number of pipe breaks: 168/year

  • Number of main watermeters: 32 332

  • Number of subordinate watermeters: 55 223

  • Number of failure: 1 864/year


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

Leakage control

  • Aim: reduction of water loss and selling margin (water production – selling) at the same time

  • Methods:

    • Active

    • Passive

  • Passive methods

    • Improvement of water measurement

    • Change of water meters of expired calibration

    • Plombing of water meters

    • Locating consumers not measured (illegal)

  • Active methods

    • Detailed examination of network

    • Quick and detailed location of failure points/sites


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

Leakage control overview (1)

  • ’80s: Searching failures by sense microphones, geophones


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

Leakage control overview (2)

  • ’90s: Diagnostical measuring car (measuring flows, locating failures by correlator)

MICROCORR 5 – Correlator searching for failure

RSP 3 Knocker – Searching tracks of non-metal wires

HYDROLUX HL 2000 – Electroacustic failure seeker


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

FM 9800 - Searching tracks of metal wiresand cables

RD 312 – Metal detector

MFE 90 - Searching tracks of metal wiresand cables

RD 315 – Magnetic metal detector


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

Leakage control overview (3)

  • Since 2000: system of noise level sensor and data storing unit

  • Installment plan

  • Installment of data collectors

  • Monitoring

  • Measurement

  • Automatic data collection and manipulation

  • Forwarding results by radiowaves (leakage data and position)

  • Result of measuring: failure point/site exists/not exists

  • Detailed location: usual way

  • Troubleshooting

SEBA Dynatronic GPL 99


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

  • Application: also in the settlements of the region (first examination has been finished in 90%)


Munservnet component b 1 st expert panel 11 1 3 j ul y 2006 chania

Thank you for your

kind attention!


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