Find Reliable Containment Dome Specs for Amending 10 CFR 73 - Expert Suggestions

  • Thread starter tehfrr
  • Start date
In summary: Senior Fellow at the Manhattan Institute, who has written about nuclear safety and radiation risks:ECCS means Emergency Core Cooling System and it would be used to cool the reactor in the event of an accident. I'm not sure what you are asking about.
  • #1
tehfrr
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Does anyone know where I can find some info on (U.S.) containment dome specs? We are studying a petition to ammend 10 CFR 73, and I am trying to make the point that a containment dome can withstand a 16 psig overpressure. After several hours of searching (including nrc.gov), I could only find two articles that mentioned containment is designed to accommodate overpressures of about 50 psia. Both articles are not really worthy of citation though. Is this considered sensitive data? And if so, any idea of somewhere reputable I could at least get a ballpark figure?
 
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  • #2
tehfrr said:
Does anyone know where I can find some info on (U.S.) containment dome specs? We are studying a petition to ammend 10 CFR 73, and I am trying to make the point that a containment dome can withstand a 16 psig overpressure. After several hours of searching (including nrc.gov), I could only find two articles that mentioned containment is designed to accommodate overpressures of about 50 psia. Both articles are not really worthy of citation though. Is this considered sensitive data? And if so, any idea of somewhere reputable I could at least get a ballpark figure?

I'm unclear on your request. I will try to help out if you can clarify your request for me.

Exactly what part of 10CFR73 are you looking at?
Are you referring to a PWR or BWR containment?
What do your mean by "16 psig overpressure"? It almost sounds like you are talking external pressure since by desgin, containments can handle internal pressures of much greater than 16 psig. Are you referring to "overpressure" as it refers to ECCS NPSH?

I think the NRC has removed individual plant safety analysis reports (SARs) from the web page after 9/11/01 but I will take a look around. Many plant's technical specifications are still on the NRC web page and usually give a containment design pressure for LOCA.
 
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  • #3
ASME code
Section III, Division 2: Code for Concrete Reactor Vessels and Containments

As I understand it, the containment building should be able to handle about 45 psig (or about 4 bar (60 psia)).

See - http://www.fas.org/sgp/othergov/doe/lanl/lib-www/la-pubs/00416679.pdf - which mentions 4 bar.

On the other hand, a containment building should probably be able to handle about 10 bar of pressure - before leaking. Actual rupture should take a bit more, perhaps about 12 bar.
 
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  • #4
Astronuc said:
ASME code
Section III, Division 2: Code for Concrete Reactor Vessels and Containments

As I understand it, the containment building should be able to handle about 45 psig (or about 4 bar (60 psia)).

See - http://www.fas.org/sgp/othergov/doe/lanl/lib-www/la-pubs/00416679.pdf - which mentions 4 bar.
Astronuc,

Yes - the nominal overpressure for a containment dome is about 4 bar.

As I recall - there was a 2 bar overpressure due to a hydrogen burn during the
Three Mile Island accident.

Dr. Gregory Greenman
Physicist
 

FAQ: Find Reliable Containment Dome Specs for Amending 10 CFR 73 - Expert Suggestions

What is a containment dome?

A containment dome is a structure designed to contain hazardous materials and prevent them from leaking into the surrounding environment. It is typically used in industries such as nuclear power plants and chemical plants.

What are the specifications for a containment dome?

The specifications for a containment dome can vary depending on the specific industry and materials being contained. Generally, it must be strong, durable, and able to withstand extreme conditions such as high pressure and temperature. It should also be resistant to corrosion and have a sealable design to prevent leaks.

How is the size of a containment dome determined?

The size of a containment dome is determined by the amount and type of hazardous material it needs to contain. It must be large enough to hold the material, but not so large that it becomes difficult to maintain and monitor. The shape and location of the structure also play a role in determining its size.

What materials are used to construct a containment dome?

The materials used to construct a containment dome depend on the specific requirements and specifications of the structure. Generally, high-strength steel, concrete, and specialized coatings are used to create a strong and durable structure. In some cases, advanced materials such as carbon fiber may also be used.

How is the integrity of a containment dome maintained?

The integrity of a containment dome is maintained through regular inspections, maintenance, and repairs. The structure must also be designed and constructed using high-quality materials and technology to ensure its long-term stability. Additionally, proper training and protocols for handling hazardous materials play a crucial role in maintaining the integrity of the containment dome.

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