basic nuclear reactor 101:How a Reactor Shuts Down and What Happens in a Meltdown

[simplyvargas]

http://www.nytimes.com/interactive/...q=diagrams explaining nuclear reactors&st=cse

Great explanation of what is going on with the nuclear reactors in detail, and easy to understand.

 

[bruceb]

Saw that in the Tuesday NY Times .... pretty good explanation

 

[rcpratt]

Not bad, but the hydrogen wasn't released from inside the fuel rods. At 2200 F, the zircaloy cladding undergoes a zirc-water oxidation reaction with the steam, which produces hydrogen. It also embrittles the cladding and signals the beginning of fuel rod compromise.

 

[JEDIYoda]

Not bad, but the hydrogen wasn't released from inside the fuel rods. At 2200 F, the zircaloy cladding undergoes a zirc-water oxidation reaction with the steam, which produces hydrogen. It also embrittles the cladding and signals the beginning of fuel rod compromise.

rofl...please give credit to the site where you copied and pasted this from.....plagairism is not cool!

 

[rcpratt]

rofl...please give credit to the site where you copied and pasted this from.....plagairism is not cool!

Uh, ok.

 

[IndyColtsFan]

rofl...please give credit to the site where you copied and pasted this from.....plagairism is not cool!

He's a nuclear engineering major IIRC.

The Force is clearly not with you, JEDITroll.

 

[comptr6]

rofl...please give credit to the site where you copied and pasted this from.....plagairism is not cool!

I agree 100% :thumbsup: People deserve credit for their hard work and useless idiot scumbags shouldn't be going around the internet copying and pasting things over and over like they came up with it :thumbsup: Without people providing links to where they got the article, who knows who the source is? Maybe it came from someone that openly supports terrorists?

 

[Jhhnn]

Not bad, but the hydrogen wasn't released from inside the fuel rods. At 2200 F, the zircaloy cladding undergoes a zirc-water oxidation reaction with the steam, which produces hydrogen. It also embrittles the cladding and signals the beginning of fuel rod compromise.

Thank you- I believe that's correct. It's the kind of answer somebody who knows what they're talking about would give.

What do you think about the supposedly walk away safe designs- CANDU, Bismuth/Lead and Helium cooled?

 

[CaptnKirk]

The most likely source of Hydrogen would be water, wouldn't it? - H2O

At what temperature and what excited (by radiation) level does molecular disintigration begin?

In many fires, Magnesium or Aluminum for example, the heat of the fire and potential disassociation
of water prevents the fire fighting and containment efforts from using water to fight the problem.

These fuel rods have ignited underwater, and are continuing to react and generate more Hydrogen.

Each of the steam explosions was followed in sequence by a Hydrogen explosion.

Followed by steam plumes and increased radiation levels being observed.

Quite a sicence experiment they have going - we are going to learn more than we ever wanted
to know, about the effects, both short and long term, of radiation on an indigineous population.

 

[MotF Bane]

He's a nuclear engineering major IIRC.

The Force is clearly not with you, JEDITroll.

This message is hidden because JEDIYoda is on your ignore list. :awe:

 

[PottedMeat]

I agree 100% :thumbsup: People deserve credit for their hard work and useless idiot scumbags shouldn't be going around the internet copying and pasting things over and over like they came up with it :thumbsup: Without people providing links to where they got the article, who knows who the source is? Maybe it came from someone that openly supports terrorists?

what is this shit?

 

[Brainonska511]

what is this shit?

Some new/old troll or a crazy person.

http://en.wikipedia.org/wiki/Poe's_law

 

[Fenixgoon]

rofl...please give credit to the site where you copied and pasted this from.....plagairism is not cool!

uh, pretty basic chemical reaction IIRC:


zr + 2h2O --> ZrO2 + 2H2

 

[comptr6]

what is this shit?

I don't know why you're being insulting. If you read what you quoted you'll see I was just agreeing with him.

 

[Hacp]

Not bad, but the hydrogen wasn't released from inside the fuel rods. At 2200 F, the zircaloy cladding undergoes a zirc-water oxidation reaction with the steam, which produces hydrogen. It also embrittles the cladding and signals the beginning of fuel rod compromise.

Well if there is zinc in there, even a basic zinc-water reaction will produce hydrogen. No need to be at 2200F although that does help speed up the reaction.

If they were using salt water though, the hydrogen ions might not be given a chance to react with zinc. They might just go on to form HCL. It would depend on the kinetics of the ionic reactions.

 

[CLite]

It's a zirconium (Zr) alloy not zinc (Zn), and a water environment is insufficient to oxidize it. The steam environment is what leads to the oxidation and production of hydrogen. It's actually this oxidation which leads to the super heating of the core after partial rod exposure to steam. Anyone who took high school chemistry should be aware that oxidation is an exothermic reaction.

 

[Londo_Jowo]

rofl...please give credit to the site where you copied and pasted this from.....plagairism is not cool!

You need to stick with Anti-Muslim trolling posts.