LEICESTER EXPERTS LAY IT ON THE LINE

Posted by ap507 at Nov 09, 2016 03:54 PM |
Unique knowledge of Leicester engineers supports National Grid

Issued by University of Leicester Press Office on 9 November 2016

The work of University of Leicester engineers has been profiled in a national publication for industry.

The National Grid (NG) Annual Summary 2015/16 by Nicola Shaw, the UK Executive Director of NG, features Leicester’s research as its very first case study.

The University of Leicester Department of Engineering delivered for NG a successful mathematical model for life prediction of the underground electricity transmission cables, which will enable NG to better plan and deliver efficient asset management and investment management.

This was part of a £360k research grant to Leicester - the largest ever in the College of Science and Engineering that was wholly funded by industry.

Professor Jingzhe Pan and Dr David Weston of the Department of Engineering have unique expertise in understanding corrosion fatigue of engineering systems. It is verified through the research that corrosion fatigue is the underlying mechanism responsible for the end-of-life of underground transmission cables.

Jingzhe Pan, Professor in Mechanics of Materials, at the University of Leicester, said: “Leicester developed a mathematical model for the prediction of probability of failure for underground power transmission cables. These cables are part of the UK electricity transmission network. Our mathematical model incorporates condition monitoring data, historical information and operation data to predict the remaining life of the cables.

“The Leicester model is able to pull all the historical data together that were collected by NG over the last 40 years, i.e. the model predictions are consistent with all the historical data. Therefore the mathematical model provides a scientific understanding as well as a predicting tool for the cable failure.”

Professor Pan said hundreds of kilometres of underground cables operated by National Grid were built during the 1960s and 1970s and are quickly reaching their designed asset life.

He added: “As it stands, they will need replacing in the next 10-20 years, costing billions of pounds. Optimising their asset life will therefore deliver significant benefits for UK consumers.

“The Leicester model will allow NG to make their decision on if and when to replace these cables on a solid scientific ground.”

Dr Fan Li, principal engineer at National Grid, said: “Innovation is one of the fundamental elements of National Grid’s business model and drives significant value for UK consumers. The collaboration with University of Leicester highlights a mathematical model that can be readily used and implemented at the same time demonstrates a successful research project creates both academic merit and business value.” 

You can read the case study here http://www.smarternetworks.org/Files/NIA_&_NIC_160729142812.pdf

More information: http://www.smarternetworks.org/Project.aspx?ProjectID=1406

Ends

Note to newsdesk:

You can contact Professor Pan via: jp165@leicester.ac.uk

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