Innovative welding technology transforms productivity in revolutionary nuclear power generation project

CVE has developed a local vacuum EB welding system which can be readily transported and operated on site and applied to structures significantly larger than can be accommodated in a vacuum chamber.

A pioneering new type of local vacuum electron beam welding technology developed in the UK by Cambridge Vacuum Engineering (CVE) is helping to revolutionise the power generation sector. The EB ManPower project is a joint collaboration between CVE, U-Battery, Cammell Laird and TWI.

Large scale nuclear reactors require high capital investment and heavily rely on the infrastructure of nuclear sites.

The challenge has therefore been to develop smaller scale reactors, especially for developing countries and remote areasโ€จoff main power grids. The current development of micro modular reactors presents a host of economic, industrial and environmental opportunities, contributing to the solution of what is known as the โ€œenergy trilemmaโ€ (low carbon, secure and affordable energy) and enabling a low carbon economy.

Globally 79% of electricity is generated by thermal processes, in which conventional power plants provide over 62% of global electricity supply and the remaining 17% is by nuclear fission processes and this is expected to increase further (IEA, 2015). The demand for โ€œthick sectionโ€ steel structures in power generation is already strong and continues to grow. The ability to fabricate theseโ€จthick section structures cost-effectively is in part limited by the welding time and associated cost; to produce a typical 40-metre long monopile (60mm thick) for example can take more than six thousand hours of โ€˜arc-onโ€™ welding time.

To reduce cost the manufacturing time therefore needs to be significantly reduced. CVE has developed the โ€œEBFlowโ€ system, based on high productivity Electron Beam Welding which can reduce the welding time involved to less than 200 hours, equivalent to a reduction in cost of over 85%. The EBManPower project, due to complete in 2021 and at a value of ยฃ1.5 million, will implement and validate the first EBFlow system within a large-scale fabrication facility (in Birkenhead, UK) in order to enable cost-effective manufacture of large scale power generation infrastructure.

The project is at its heart focused on reducing the cost of โ€œthick sectionโ€ steel structures applicable for both nuclear and offshore wind structures. EBManPower will exploit CVEโ€™s revolutionary EBFlow system and will innovate, demonstrate and provide a near to market result; validation in a real world environment is the ultimate aim.

Bob Nicolson, Managing Director at Cambridge Vacuum Engineering commented on the project: โ€œOur revolutionary EBFlow technology, fully developed and pioneered in Britain, will transform the productivity of fabrication processes throughout the world of heavy engineering. In many cases the speed of welding can be 30 times faster than current methods.โ€

Cambridge Vacuum Engineering (CVE) designs and builds process solutions and has more than 60 yearsโ€™ experience manufacturing Electron Beam (EB) systems and Vacuum Furnaces (VF) from its base in Cambridge, UK. CVE’s range of equipment includes systems ranging from 50 – 200 kV with beam powers up to 100 kW.

www.ebflow.com
http://www.camvaceng.com/

Collaboration partners
https://www.clbh.co.uk/
https://www.u-battery.com
https://www.twi-global.com/

Innovate UK is the UKโ€™s-innovation-agency. It works with people, companies and partner organisations to find and drive the science and technology innovations that will grow the UK economy.

www.innovateuk.gov.uk

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