[–] ardvarcus 0 points 5 points (+5|-0) ago 

Sounds great, doesn't it? These articles always sound great. But still, when you look around there is no working molten salt reactor running commercially. Why? I've read all the conspiracy theories about how the technology was shelved, rejected, shut down, prohibited, but you know what? I don't believe that's the reason. I think there is no working commercial molten salt reactor because the technology has other problems -- big problems -- that never get mentioned in these gee-wiz promotional articles. You can take it as a general rule of thumb that if a technology is really better and cheaper and safer, it will be adopted quickly. In fact, people will fall over each other rushing to get a piece of it. There must be good reasons why molten salt reactors are not in use, and I don't think a vague government conspiracy to exclude them is the explanation.

[–] Nevyn 0 points 2 points (+2|-0) ago 

The big reason is that molten salt is extremely corrosive. The only viable materials for building the reactor (nickle alloys) have the unfortunate side-effect of becoming incredibly brittle when exposed to radioactive materials.

[–] tokui 0 points 4 points (+4|-0) ago 

Light on operating details, heavy on political background.

[–] carnold03 0 points 3 points (+3|-0) ago 

What about Corrosion?

[–] bigrex99 0 points 4 points (+4|-0) ago 

That was my first thought too. Salt is crazy corrosive.
But reading that it is unpressurized might allow for different types of materials in construction. Ceramic might be a plausible choice, considering the high heat tolerances, but also alloys or other high temp materials could be used with anti-corrosion coatings.

It doesn't really say what the transfer mechanism is, or how it works, so that is very unclear. I imagine trying to pump the salt would be quite difficult in every way.

[–] tecnic1 ago 

I mean, you can blend spent fuel with HE fuel if the goal is to use waste.

You can also design passively safe PWRs and BWRs if passive safety is a design goal.

If you just want to burn money trying to make something work, molten salt reactors are great.

[–] BlueDrache ago 

It'll never be built.

[–] WillowsRecipe ago 

Watch the first 5 minutes of this video...

LFTR in 5 minutes .... and there goes my weekend

This is a summary of where things stood as of the end of 2018.

LFTR (Liquid Fluoride Thorium Reactor) Defended by Kirk Sorensen @ ThEC2018

Kirk Sorensen started Flibe Energy after realizing that he needed to be the someone that he was trying to encourage to step into the sector.

[–] skullfuku ago 

Good news for camping lovers.