Green technology set to save millions

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23 April 2012

One of the world’s leading engineering, architecture and environmental consulting companies, GHD, has developed innovative technology to continuously monitor water pump efficiency in real-time.

The GHD Pump Efficiency Meter System has been developed through a team from GHD’s Cazenovia operations, with support from the company’s Innovation Program. It is designed to integrate with existing pump control systems to optimise the use of a water facility’s pumps and can notify operators when a pump’s performance has deteriorated and requires maintenance.

We have just filed a patent application for this technology. The system has the potential to save millions of dollars in wasted energy at municipal water and wastewater facilities globally," said Tom Devine, GHD’s Project Manager Energy Services for the East Coast.

It will also improve pump system reliability which will deliver additional operational benefits.

"Most pump systems operate in a lead/lag configuration where a lag pump only runs when the lead pump fails or cannot keep up with demand. The problem with existing control systems is that they don’t know why the lead pump can’t keep up - is the pumping demand really that high, or has the capacity of the lead pump degraded?"

"The key to GHD’s system is the algorithm that calculates pump efficiency, which is subsequently compared to the expected performance of a new pump operating under the same conditions. If performance of a pump falls outside of an acceptable range, the system places it into 'lag' mode and puts a more efficient pump into the ‘lead’ mode, while generating an alarm.

"The causes of pump inefficiency are not typically visible to the naked eye and existing pump control systems do not generate alarms or warnings until there is an actual pump failure. Our system continuously monitors pump performance and generates an alarm before there is a failure – allowing operators to be proactive in their maintenance."

GHD’s Innovation Program was launched in 2008 in response to changes in the global infrastructure industry driven by issues such as resource deficits and climate variability. The company recognised a need to adopt a more structured approach to generating, collaborating on and delivering great ideas.

For more information on this technology, contact Thomas Devine

For more information, please contact Kirill Reztsov

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