#SouthCarolina #NuclearPlant gets warning over another cracked emergency fuel pipe

Associated Press
Updated Mon, October 9, 2023

JENKINSVILLE, S.C. (AP) — "Federal officials have issued a warning about a substantial safety violation at a South Carolina nuclear plant after cracks were discovered again in a backup emergency fuel line.

"Small cracks have been found a half-dozen times in the past 20 years in pipes that carry fuel to emergency generators that provide cooling water for a reactor if electricity fails at the #VCSummer plant near Columbia, according to the U.S. #NRC.

"The agency issued what it calls a preliminary 'yellow' warning to plant owner #DominionEnergy last week.

"It is the second most serious category and only seven similar warnings have been issued across the country since 2009, nuclear power expert David Lochbaum told The State newspaper after reviewing records from federal regulators.

A crack first appeared on a diesel fuel pipe in 2003, and similar pipes have had other cracks since then.

During a 24-hour test of the system in November, a small diesel fuel leak grew larger, according to NRC records.

"The agency issued the preliminary yellow warning because of the repeated problems.

"The commission’s ruling is not final and Dominion will have a chance to explain what happened, utility spokesperson Darryl Huger wrote in an email

"Dominion has already started to put in place a plan to improve the reliability of the backup system and like all nuclear reactors there are multiple backup systems in case any component fails, Huger said.

“With a commitment to continued safe operations, we are inspecting and maintaining our generator and related components. We will continue to keep the NRC updated on our future strategy to further enhance our diesel generators,” Huger wrote.

"Virginia-based Dominion hasn't been the only owner of the plant. SCANA built and started the plant in 1984. The South Carolina company had plans to build two more reactors, but billions of dollars of cost overruns forced it to abandon the project in 2017 and sell to Dominion.

"Dominion has recently requested to renew the license for the nuclear plant for an additional 40 years.

"Longtime nuclear safety advocate Tom Clements told the newspaper the pipe problems should mean a lot more scrutiny by regulators.

"'This incident serves as a wake-up call to fully analyze all such systems prior to a license-renewal determination,' Clements said in an email."

https://www.yahoo.com/news/south-carolina-nuclear-plant-gets-185055173.html

#NuclearPlants #NoNukes #RethinkNotRestart #RenewablesNow

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@DoomsdaysCW

Just a ‘warning’? How stupid are people collectively?

@DoomsdaysCW Are the pipes in an area subject to radiation? If pipes carrying diesel can't survive 20 years or so, how do diesel cars and trucks manage?

@steter Neutron embrittlement usually affects the metals in the reactor vessel.

"Neutron irradiation embrittlement could limit the service life of some of the reactor-pressure vessels in existing commercial nuclear-power plants. Improved understanding the of the underlying causes of embrittlement has provided regulators and power-plant operators better estimates of vessel-operating margins. This article presents an overview of embrittlement, emphasizing the status of mechanistic understanding and models, and their role in increasing the reliability of vessel-integrity assessments."
https://link.springer.com/article/10.1007/s11837-001-0081-0
#RethinkNotRestart #NoNukes #Tihange #Embrittlement

Embrittlement of nuclear reactor pressure vessels - JOM

Neutron irradiation embrittlement could limit the service life of some of the reactor-pressure vessels in existing commercial nuclear-power plants. Improved understanding the of the underlying causes of embrittlement has provided regulators and power-plant operators better estimates of vessel-operating margins. This article presents an overview of embrittlement, emphasizing the status of mechanistic understanding and models, and their role in increasing the reliability of vessel-integrity assessments. Finally, a number of outstanding issues and significant opportunities, including a new fracture-toughness master-curve method, are briefly described.

SpringerLink
@DoomsdaysCW Perhaps the pipes run past a containment pool. They wouldn't be in the containment vessel, but if they're near a pool, I imagine they would be subject to bursts of radiation. The entire plant is probably suffering from embrittlement. Fission is just dirty power that should never have been allowed to be monetized.