Reducing Apparent Losses Caused By Meters Inaccuracies

Arregui, Francisco J.; Cabrera, Enrique; Cobacho, Ricardo; García-Serra, Jorge

doi:10.2166/wpt.2006.093

Cited by 40 publications

(30 citation statements)

References 4 publications

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“…The methodology used in this study for sampling and meter testing has been used by many researchers (Allander, 1996;Arregui et al, 2006a;Criminisi et al, 2009;Newman and Noss, 1982;Yee, 1999). The method for estimating weighted meter accuracy was adapted from Arregui et al (2006a) and is summarised in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…The method for estimating weighted meter accuracy was adapted from Arregui et al (2006a) and is summarised in Fig. 1.…”

Section: Methodsmentioning

confidence: 99%

“…However, most studies carried out on metering have been based on water utilities of developed countries, with well-managed water distribution networks, notably the USA, Spain, France, and Italy (Arregui et al, 2006a;Criminisi et al, 2009;Pasanisi and Parent, 2004;Richards et al, 2010). Water meter performance in water systems of the developing countries, often with poorlymanaged networks and relatively lower water quality in the distribution system, is not very well understood.…”

Section: Introductionmentioning

confidence: 99%

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Investigating water meter performance in developing countries: A case study of Kampala, Uganda

Mutikanga¹,

Sharma²,

Vairavamoorthy³

2011

WSA

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High levels of water losses in distribution systems are the main challenge that water utilities in developing countries currently face. The water meter is an essential tool for both the utility and the customers to measure and monitor consumption. When metering is inefficient and coupled with low tariffs, the financial sustainability of utilities is at stake. Apparent water losses caused by metering inefficiencies can be reduced by assessing meters' performance and identifying the main causes of inefficiency. This paper examines the performance of 3 meter models, on the basis of failure records for a developing world water utility in Kampala city, Uganda. The influence of sub-metering on meter accuracy is also examined. The results indicate a high meter failure rate (6.6%/year) in Kampala. Over 75% of failures were observed in the volumetric (oscillating-piston) meter types with the main cause of meter failure being particulates in water. The study also indicates an average reduction in revenue water registration of 18% due to sub-metering. The reduction was not because of water use efficiency but due to the combined effect of the metering errors of the sub-meters. This clearly implies that when properties are sub-metered, customers should be charged proportionately based on master meter readings, for accurate water accountability. The findings of this study will be useful for both utility managers and meter manufacturers who work in the water industry, especially in developing countries, to make appropriate metering and sub-metering decisions.

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Section: Methodsmentioning

confidence: 99%

“…The method for estimating weighted meter accuracy was adapted from Arregui et al (2006a) and is summarised in Fig. 1.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigating water meter performance in developing countries: A case study of Kampala, Uganda

Mutikanga¹,

Sharma²,

Vairavamoorthy³

2011

WSA

View full text Add to dashboard Cite

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“…Apparent losses are mainly the result of low accuracy of measurement of the volume of flowing water and non-simultaneity of readings of devices registering the amount of water supplied to the system (main water meter) and consumed by recipients (sub-meters on premises) [3,7,10,11].…”

Section: Causes Of Losses and Methods Of Preventing Losses In A Watermentioning

confidence: 99%

Apparent water loss prevention using modern measurement tools

Gwoździej-Mazur

2017

E3S Web Conf.

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Abstract. The problem of discrepancies in balancing housing water meters indications in relation to the main water meters in multihousing/family building is well known to both, property owners as well as to water supply and sewage companies. The article presents the results of research in the field of flows which are characteristic to the water supply connection in school complexes and the Conference and Training Center. using modern monitoring systems. Studies have shown that it is possible to eliminate the apparent loss occurring especially at night, resulting mainly due to improper selection/choice of the measuring device, which is the main water meter.

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“…Such metering on water service pipes forms an entire metrological network that facilitates water management. The operation of such a monitoring network provides time savings thanks to the speed of reading a water meter and limits apparent losses, which include unauthorized consumption [1,2,[13][14][15][16][17].…”

Section: Monitoring Of Water Service Pipesmentioning

confidence: 99%

Monitoring of water supply connections as an element to reduce apparent losses of water?

Gwoździej-Mazur

2017

E3S Web Conf.

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Abstract. Measuring instruments are designed to measure a given physical value, to process the obtained information and forward it to the observer. They are designed to perform specific tasks in specific working conditions and meeting the envisaged requirements. The most important requirement to be met by measuring instruments, is to preserve the established metrological characteristics. The basic and most common instrument for measuring the volume of flowing water is the water meter. Selecting the right water meter in the operating conditions is not an easy issue. The problem has been further intensified by decrease of water consumption which began in the 90s of the twentieth century and continuing to the present day. As a result, there has changed the structure of water consumption in both the residential and industrial applications. In this situation, a right selection of the optimal water meter it is an important case.The article presents the results of research in the field of characteristic flows in the water supply connections in multi-family housing using modern monitoring systems. It has been presented the calculated inequality ratio of water consumption, which can be helpful when designing a plumbing systems. In addition, the structure of water consumption due to the typical flow ranges was determined.

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Reducing Apparent Losses Caused By Meters Inaccuracies

Cited by 40 publications

References 4 publications

Investigating water meter performance in developing countries: A case study of Kampala, Uganda

Investigating water meter performance in developing countries: A case study of Kampala, Uganda

Apparent water loss prevention using modern measurement tools

Monitoring of water supply connections as an element to reduce apparent losses of water?

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