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Comparison of different methods for expressing water losses with a review of their practical implementation in Croatia

Dražen Vouk ; Faculty of Civil Engineering, Unniversity of Zagreb, Zagreb, Croatia
Tea Martinac ; Institut IGH d.d., Zagreb, Croatia
Domagoj Nakić ; Faculty of Civil Engineering, Unniversity of Zagreb, Zagreb, Croatia

Puni tekst: hrvatski, pdf (499 KB) str. 17-26 preuzimanja: 367* citiraj
APA 6th Edition
Vouk, D., Martinac, T. i Nakić, D. (2017). Usporedba različitih načina iskazivanja vodnih gubitaka uz osvrt na hrvatsku praksu. Hrvatske vode, 25 (99), 17-26. Preuzeto s https://hrcak.srce.hr/179292
MLA 8th Edition
Vouk, Dražen, et al. "Usporedba različitih načina iskazivanja vodnih gubitaka uz osvrt na hrvatsku praksu." Hrvatske vode, vol. 25, br. 99, 2017, str. 17-26. https://hrcak.srce.hr/179292. Citirano 26.01.2020.
Chicago 17th Edition
Vouk, Dražen, Tea Martinac i Domagoj Nakić. "Usporedba različitih načina iskazivanja vodnih gubitaka uz osvrt na hrvatsku praksu." Hrvatske vode 25, br. 99 (2017): 17-26. https://hrcak.srce.hr/179292
Harvard
Vouk, D., Martinac, T., i Nakić, D. (2017). 'Usporedba različitih načina iskazivanja vodnih gubitaka uz osvrt na hrvatsku praksu', Hrvatske vode, 25(99), str. 17-26. Preuzeto s: https://hrcak.srce.hr/179292 (Datum pristupa: 26.01.2020.)
Vancouver
Vouk D, Martinac T, Nakić D. Usporedba različitih načina iskazivanja vodnih gubitaka uz osvrt na hrvatsku praksu. Hrvatske vode [Internet]. 2017 [pristupljeno 26.01.2020.];25(99):17-26. Dostupno na: https://hrcak.srce.hr/179292
IEEE
D. Vouk, T. Martinac i D. Nakić, "Usporedba različitih načina iskazivanja vodnih gubitaka uz osvrt na hrvatsku praksu", Hrvatske vode, vol.25, br. 99, str. 17-26, 2017. [Online]. Dostupno na: https://hrcak.srce.hr/179292. [Citirano: 26.01.2020.]

Sažetak
There are different methods for expressing water losses in water supply systems, which are presently used in the world. Water losses are most frequently expressed as a percentage of abstracted water quantity, a calculation of real and apparent losses as part of the standard water balance and calculation of the Infrastructure Leakage Index (ILI) according to the International Water Association (IWA) methodology. The ILI presents the relation between the real and unavoidable annual water losses. The paper offers a critical review of the reliability of the ILI in the analysis of water losses. By using specific examples, the paper proves that it is not reliable to draw concrete conclusions about the state of water losses or to define measures for improving integrated systems or individual district metering areas (DMAs) based on the ILI. In addition to the ILI calculation, numerous other methods of expressing and assessing water losses are also used, such as l/(connection per day), m3/(km pipeline per day), l/(connection per day mWC), m3/(km pipeline per day mWC), HRK/year, etc. In order to find the simplest and most reliable method for expressing water losses, this paper analyses relations between different methods for expressing water losses on five specific water supply systems in Croatia. It has been concluded that the most practical and efficient performance of economic analyses of water losses is when water losses are expressed in HRK/year, both for the system as a whole and separately for each individual DMA.

Ključne riječi
water losses; ILI indicator; economic value of losses; IWA methodology

Hrčak ID: 179292

URI
https://hrcak.srce.hr/179292

[hrvatski]

Posjeta: 494 *