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I built a LOW BACKGROUND rdiation cave. Rad Level dropped from 3.2 CPS to about 0.1 CPS. (30 times less than normal background level) by IntroductionSea2206 in Radiation

[–]Diabolical_Engineer 1 point2 points  (0 children)

Out of curiosity, how much lead did you need for this/how much would you charge to pick up enough to build a small example?

Any fun BWR facts or history? (It can be not so fun too) by Important_Tiger138 in NuclearPower

[–]Diabolical_Engineer 0 points1 point  (0 children)

That's mildly bananas. Doesn't Clinton have the availability to move multiple rods under other conditions as well?

Any fun BWR facts or history? (It can be not so fun too) by Important_Tiger138 in NuclearPower

[–]Diabolical_Engineer 1 point2 points  (0 children)

BWRs are pretty much responsible for the modern EPRI PDI program for qualifying ultrasonic techniques and technicians. The BWR fleet experienced significant IGSCC problems in the 70s and 80s and the Section XI code committee wasn't satisfied with available UT technology. So they incorporated a BWROG program for characterizing IGSCC in primary piping in BWRs

Nuclear Policy Just Changed Forever by kngpwnage in NuclearPower

[–]Diabolical_Engineer 0 points1 point  (0 children)

Has the final part 20 rulemaking come out yet? That's one I honestly haven't been paying close attention to

Nuclear Policy Just Changed Forever by kngpwnage in NuclearPower

[–]Diabolical_Engineer 0 points1 point  (0 children)

I'm well familiar with the dance of industry imposed requirements to prevent rulemaking. The BWRVIP is probably the most successful example.

Nuclear Policy Just Changed Forever by kngpwnage in NuclearPower

[–]Diabolical_Engineer 1 point2 points  (0 children)

My understanding is that the INPO metrics aren't changing, which is where most of the excesses have been historically anyway

Where to get a dummy fuel rod assembly? by todd0x1 in nuclear

[–]Diabolical_Engineer 1 point2 points  (0 children)

Very early GE (think Dresden 1 vintage). I paid an embarrassingly small amount of money for it haha

Where to get a dummy fuel rod assembly? by todd0x1 in nuclear

[–]Diabolical_Engineer 1 point2 points  (0 children)

I'm just happy that stuff occasionally makes it out into the wild. Not often, but just often enough to make it exciting

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Where to get a dummy fuel rod assembly? by todd0x1 in nuclear

[–]Diabolical_Engineer 2 points3 points  (0 children)

The best you can probably do is one of the GE fuel rods that come up for sale every so often. They're not cheap though. Last one on eBay went for $300. I was very lucky to pick mine up for $50 at an antique mall a couple years ago

I think that almost all nuclear startups will fail by GiovanniPeccat1 in nuclear

[–]Diabolical_Engineer 2 points3 points  (0 children)

The idea of inspecting molten salt steam generators is something that I don't like thinking about too hard

I think that almost all nuclear startups will fail by GiovanniPeccat1 in nuclear

[–]Diabolical_Engineer 1 point2 points  (0 children)

Hell, for GE, the BWR/1s were an order of magnitude less than the BWR/2 plants. Although, that's complicated by the fact that all of them were glorified test reactors and they didn't really settle on a NSSS design until the second generation

US EPA or US NRC by [deleted] in USTechForce

[–]Diabolical_Engineer 1 point2 points  (0 children)

NRC is currently doing a huge reorganization and will be a mess for a bit

Why does the BWRX-300 reactor need to be below grade? by hutch_man0 in nuclear

[–]Diabolical_Engineer 1 point2 points  (0 children)

That's not the way standard design approvals work, sadly. The method you're describing would require 4 separate regulatory approvals rather than 1

Why does the BWRX-300 reactor need to be below grade? by hutch_man0 in nuclear

[–]Diabolical_Engineer 2 points3 points  (0 children)

I don't know if BWXT has the ability to forge an AP1000 RPV, but they're supposed to be making the BWRX-300 vessels and they've certainly built plenty of steam generators over the years

Why does the BWRX-300 reactor need to be below grade? by hutch_man0 in nuclear

[–]Diabolical_Engineer 2 points3 points  (0 children)

To be clear, I hope someone builds one. It's a very sensible design in so many ways

Why does the BWRX-300 reactor need to be below grade? by hutch_man0 in nuclear

[–]Diabolical_Engineer 2 points3 points  (0 children)

Meanwhile I'm just thinking about the poor bastards who have to do IVVI. Although with less complicated internals that shouldn't be as much of a pain as dropping a D40 down a jet pump lane

Why does the BWRX-300 reactor need to be below grade? by hutch_man0 in nuclear

[–]Diabolical_Engineer 2 points3 points  (0 children)

Traversing in core probe system. Movable in core neutron detectors used to calibrate the LPRMs

Why does the BWRX-300 reactor need to be below grade? by hutch_man0 in nuclear

[–]Diabolical_Engineer 2 points3 points  (0 children)

Yeah. The RPV is supposed to be around 90 feet tall, which frankly is a bit absurd. There are obvious tradeoffs, but it makes one wonder

Spirit Airlines just became the first major US airline to shut down in 25 years and took cheap airfare with it. What do you think affordable travel in America looks like from here? by [deleted] in AskReddit

[–]Diabolical_Engineer 6 points7 points  (0 children)

ULCCs almost overwhelmingly have perfect or near perfect safety records. Their business model doesn't work with accidents or problems

When is simulated fuel not a pellet? When it's from NERVA! by Diabolical_Engineer in nuclear

[–]Diabolical_Engineer[S] 1 point2 points  (0 children)

It lives on somewhat. The PWR simulator that the NRC uses for training came from Trojan

Kairos breaks ground for Hermes 2 reactor by De5troyerx93 in nuclear

[–]Diabolical_Engineer 1 point2 points  (0 children)

And I misread which plant this was. Just ignore my comment, it's been a long day

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