Thanks old jim,
Yes I am familiar with the "Flammability and detonation limits" diagram on page 12 of your link.
I first saw it on page 7 of 42 of a document linked at Homer Simpson's post:
https://www.physicsforums.com/showpost.php?p=3231637&postcount=2996
The document...
@ Bioengineer01
Fine, go and do the exploration... I would suggest you first explore the possibility that there is NO inconsistency in the thermal signatures of the SFP versus the visible surface of water in the reactor vessel. This exploration should include determination of the...
The attachment is a diagram of the bellows seal for reference. The drywell cap is not shown for some reason. The "Vent Ducts" shown at the very top of the removable top shields (which cover the "Refueling Pool" during operation) has always been a curiosity to me.
For those who have not read...
I posted this document on 4/30/2011. Probably not the study you are searching for, but it is relevant to the discussion of drywell head leakage [as well as other potential leakage paths]...
https://www.physicsforums.com/attachment.php?attachmentid=35050&d=1304204379
See page 5 of 7 where...
@Jorge Stolfi
Great work on the renderings!
At your post:
https://www.physicsforums.com/showpost.php?p=3275086&postcount=5393
You say/ask:
"However, the flanges connecting shroud and drywell seem to be rather massive things held together with a zillion heavy bolts. So I would expect...
From Cainnech's post #4653:
https://www.physicsforums.com/showpost.php?p=3262389&postcount=4653
"TEPCO suspects that the water leaked from the RPV is leaking through the cracks in the wall that separates the Reactor 3 turbine building and the Reactor 4 turbine building."
Could the...
@Homer Simpson
Excellent reference you posted!
http://canteach.candu.org/library/20044507.pdf
First question;
Most references I have seen give UEL at STP which would not apply within a hot - pressurized containment vessel... so, in Figure from R. Heck et al showing "Ignition tests...
@Homer Simpson
The issue to be resolved is two-fold... What is "Hydrogen's UEL (considering the presence of steam)."? And what is the source of the Oxygen (as I remember, the primary containment is filled with N2)?
What we do not know is the relative (by volume) composition of the three...
As to panel trajectories from Unit 3...
Sketches I made some time ago but didn't post are attached. These were intended as a reply to a much earlier question about the origin of an almost intact panel leaning against the building just East of the turbine building.
The specific panel in...
@Tcups;
From your post #2936:
https://www.physicsforums.com/showpost.php?p=3230713&postcount=2936
"The reactor vessel is now mostly dry, really, really (red?) hot, and making hydrogen and oxygen."
and
"Gas in the primary containment ignites"
How does hot fuel make Oxygen? And where...
@TCups
I have read every post in this thread and have seen no reply to your "Primary Containment explosion" theory which addresses the following:
There is no question in my mind that Hydrogen escaping from the SFP's (or by some path out of the reactor core) could (and did) explode once it...
Quote from Astronuc's post #338:
"I don't believe 5 and 6 were as badly damaged, and their EDGs may actually be working. Unit 6 has Mk II containment, but Unit 5 is Mk I and similar to Unit 4.
Units 5 and 6 may have been shutdown earlier - which means cooler fuel, or perhaps they reloaded...
Hi yameiyakuma!
Welcome to PF!
Another good source for info on your topic is "NACE International" originally known as "The National Association of Corrosion Engineers".
http://www.nace.org
.
My apologies for any confusion my post created... I allowed myself to follow a one-track, very impractical scheme which proceeded from my knowledge that ATOMIC hydrogen absorbs/emits in the IR (Paschen series) while ignoring completely the fact that MOLECULAR hydrogen will have an IR spectrum...
The hydrogen Paschen series (emission / absorption) lies in the IR band.
See;
http://en.wikipedia.org/wiki/Hydrogen_spectral_series
See also;
http://www.chemguide.co.uk/atoms/properties/hspectrum.html
Use of spectroscopy to detect H2 gas will not be easy unless you can get precise...