By: Franyi Sarmiento, Ph.D., Inspenet, June 13, 2022
Dr. Derek Li, Professor of Civil and Natural Resources Engineering at the University of Canterbury (UC) in New Zealand, has further developed a unique system, created by UC Professor Pedro Lee, that uses sound waves to locate pipelines. broken or leaking.
Dr. Li says the technology provides a very precise location of the problem, so it can be fixed without digging up a large area.
“The basic mechanics were developed with a sonar system, like the one used by bats and dolphins. We have developed acoustic technology capable of accurately identifying and locating a blockage or leak. Normally, the only way to assess the quality of a section of pipe is to shut off the water supply and dig it up. But our method is not invasive. We use a fire hydrant as access, put in a listening device with sensors, and just listen to the sound waves that are already in the system,” Li said.
He added: “We can identify leaks as noise and we can also detect signs that suggest pipe corrosion or clogging.”
The technology has been tested on the University of Canterbury campus as part of a 15-year plan to repair and renew the campus’ aging water pipe system.
Dr Li and Professor Lee also worked with Waimakariri District Council last year, conducting assessments of Oxford area water systems to help the local authority identify corroded pipes.
Dr. Li says that these experiences have increased confidence in the precision of the tools.
“Most of our water pipes were installed between 50 and 70 years ago and are nearing their useful life, but there is insufficient information on which pipe sections should be replaced as a priority. The technology could be used anywhere in the world to identify pipeline problems, achieve proactive infrastructure management and help save water,” Li explained.
He added: “About 20% of our drinking water leaks from damaged pipes. If we can save water by detecting leaks and maintaining our water supply, we can solve many problems.”
This material from the EcoInventos Portal was edited for clarity, style and length.
Source and photo : https://ecoinventos.com/sistema-unico-ondas-sonoras-para-localizar-tuberias-rotas-o-fugas/
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