Quote from sachinm on 2 October 2023, 1:22 pmIdentify Industry Specific Challenges relevant to the Nuclear SIG to be included in the Practice Guide.
Set the challenge, for other SIG members to identify potential solutions, by pooling their collective experience and knowledge.
Press "reply" to share your story...
Identify Industry Specific Challenges relevant to the Nuclear SIG to be included in the Practice Guide.
Set the challenge, for other SIG members to identify potential solutions, by pooling their collective experience and knowledge.
Press "reply" to share your story...
Quote from sachinm on 6 October 2023, 10:31 pmTo get the ball rolling here, we can consider the difference in complexity between delivering an European Pressurised (Water) Reactor (EPR) from a Pressurised Water Reactors (PWR)...
For example, Flamanville 3 EPR reactor in France began construction in 2007 with its commercial introduction scheduled for 2012. As of 2020 the project is more than five times over budget and years behind schedule. The latest cost estimate (July 2020) is at €19.1 billion driven by various safety problems have been raised, including weakness in the steel used in the reactor.
Then in December 2022 EDF announced that the loading of fuel into the has been put back again by at least six more months, with the estimated cost at completion increasing by a further EUR500 million (USD530 million) and delaying fuel loading to early 2024.
The company said the latest delay is "mainly due to supplementary studies that were needed to establish a new process for the stress-relieving heat treatment (SRHT) of some welds that have been upgraded in the last two years, which are located close to sensitive equipment (at the main secondary circuit) for the nuclear plant functioning."
SRHT is a process carried out after welding to relieve residual welding stresses and achieve the right mechanical characteristics for the welded part.
With EDF Energy planning to build four EPRs in the UK, two at Hinkley Point B and two at Sizewell C, how can the UK learn from experiences at Flamanville 3, by using advanced 3D/4D design tools in developing their Generic Design Assessment?
To get the ball rolling here, we can consider the difference in complexity between delivering an European Pressurised (Water) Reactor (EPR) from a Pressurised Water Reactors (PWR)...
For example, Flamanville 3 EPR reactor in France began construction in 2007 with its commercial introduction scheduled for 2012. As of 2020 the project is more than five times over budget and years behind schedule. The latest cost estimate (July 2020) is at €19.1 billion driven by various safety problems have been raised, including weakness in the steel used in the reactor.
Then in December 2022 EDF announced that the loading of fuel into the has been put back again by at least six more months, with the estimated cost at completion increasing by a further EUR500 million (USD530 million) and delaying fuel loading to early 2024.
The company said the latest delay is "mainly due to supplementary studies that were needed to establish a new process for the stress-relieving heat treatment (SRHT) of some welds that have been upgraded in the last two years, which are located close to sensitive equipment (at the main secondary circuit) for the nuclear plant functioning."
SRHT is a process carried out after welding to relieve residual welding stresses and achieve the right mechanical characteristics for the welded part.
With EDF Energy planning to build four EPRs in the UK, two at Hinkley Point B and two at Sizewell C, how can the UK learn from experiences at Flamanville 3, by using advanced 3D/4D design tools in developing their Generic Design Assessment?
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