New research shows how a special tool called a noise logger can detect leaks accurately and efficiently, before major roadwork is required.
The world is approaching a water crisis. According to the International Water Management Institute, 33 per cent of the world’s population will experience water scarcity by 2025.
One main cause is leaks. Twenty to 30 per cent of treated water is lost in systems because of this simple and fixable problem.
Repairs need to be as precise as possible because excavation and resurfacing is a costly undertaking. Digging up more than one location, or more area than is needed for the repair, can lead to a problematic domino effect including traffic disruption, commuter frustration and loss of business.
Meanwhile, there are major public health risks associated with contaminants entering the water system through holes in pipes.
Luckily, researchers from Concordia University in Montreal have an innovative solution. In an article recently published by the American Society of Civil Engineers, Tarek Zayed, professor in the Department of Building, Civil and Environmental Engineering, shows how a special tool called a noise logger can detect leaks accurately and efficiently, before major roadwork is required.
“This approach can reduce the duration of a leak, as well as the cost and time involved in locating the site in need of repair,” says Zayed, who co-wrote the article with post-doctoral fellow Mohammed S. El-Abbassy, recent graduate Fadi Mosleh and Ahmed Senouci from the University of Houston and Qatar University.
For the study, the researchers went all the way to Doha, Qatar to test their theories. The small nation has one of the lowest precipitation rates in the world, as well as one of the highest evaporation rates — meaning the little rain that falls is quickly reabsorbed by the atmosphere as water vapour.
“Qatar is currently facing significant challenges regarding its water supply,” explains Zayed. “Its water distribution network currently suffers from 30 to 35 per cent water loss due to leakage.”
Working on-site at Qatar University, the team installed the noise loggers along the institution’s main water network and used them to record the constant noise generated by a leak over a two-hour time period. They then analyzed the readings, comparing sound level and sound spread. A consistent anomaly meant a leak investigation was required.
Over several weeks of monitoring they collected data from across 140 different points. They then ran simulations using mathematical models to determine the location of the leaks. The facilities management team at Qatar University reported back on the actual locations and found that the team had estimated with 99.5 per cent accuracy.
For Zayed and his team, the next step is to collect leak-data surveys of real-life pipelines from municipalities that use noise loggers and develop customized leak location prediction models.
The Latest on: Noise logger
via Google News
The Latest on: Noise logger
- Gutermann launches world’s first NB-IoT water leak detection technologyon December 4, 2019 at 7:41 am
Swiss water leak detection solutions company Gutermann has released Zonescan narrowband internet of things (NB-IoT), the world’s first water leak detecting noise logger to permanently monitor water ...
- Gutermann AG claims first NB-IoT-based water leak detection technology launchon December 3, 2019 at 3:59 am
Gutermann AG, a Swiss provider of acoustic technologies focused on water leak detection, has announced the launch of a claimed world-first: a water leak detecting noise logger based on Narrowband ...
- World’s First NB-IoT-based Water Leak Detection Technologyon December 2, 2019 at 6:57 am
Swiss company Gutermann AG, a global leader in leak detection solutions for the water industry, today announced the release of Zonescan NB-IoT, the world’s first water leak detecting noise logger ...
- GUTERMANN Launches the World's First NB-IoT-based Water Leak Detection Technologyon December 2, 2019 at 1:20 am
BAAR, Switzerland, Dec. 2, 2019 /PRNewswire/ -- GUTERMANN, a global leader in leak detection solutions for the water industry, today announces the launch of ZONESCAN NB-IoT – the world's first water ...
- Sigzig Data Loggers Ditch The Noise While Pimping The Caseon November 5, 2019 at 4:00 pm
We ran into [Paul Allen] at CES. He was showing off Sigzig, a super-low noise data logger which his company is just rolling out. A couple of years ago he worked on a standalone chemical sensor and had ...
- A much quieter Diwali: Noise levels lower than last year at most locations in Delhion October 28, 2019 at 12:13 pm
NEW DELHI: The capital had a quieter Diwali this year, with five of the six Central Pollution Control Board noise monitoring stations logging a drop in noise levels this year compared with data from ...
- New tech in Hawaii County finds water leaks fasteron August 29, 2019 at 10:14 am
The Department of Water Supply for the County of Hawaii purchased more than 200 noise data loggers to help identify underground leaks in its water distribution system. The new noise data logging ...
- Malaysian water utility cuts non-revenue water by one-third with remote monitoringon June 30, 2019 at 5:00 pm
UK leakage technology specialist Primayer was approached by Ranhill through Mimtech, the company’s authorized distributor for the southern region of Malaysia, and the Enigma3m advanced remote ...
- Logger, property owner suing Hooksett for $4 millionon May 9, 2019 at 8:26 am
In a Merrimack County Superior Court civil lawsuit, logger Timothy Trimbur and property owner Louise Marple maintain local officials illegally charged them with violating the town’s noise ordinance. A ...
- Acoustic noise logging with ZONESCAN 820 increases leak pinpointing by 54% at South East Water - Case Studyon October 29, 2018 at 5:00 pm
After an initial meeting with GUTERMANN a trial was carried out with ZONESCAN 820 lift & shift acoustic noise loggers. Following the successful trial, South East Water bought 400 correlating ZONESCAN ...
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