Thanks TVP for the link - it is very informative.
I'm not doing an analysis, but comparing materials used in a motor that will pass MIL-S-901 shock to a commercial NEMA motor.
I will be testing the motor in the June and concerned that it might crack, unless its mounted on rubber.
If the...
Thanks mrfailure!
However, I meant to ask why ASTM A278 material doesn't list a yield strength. My thought was maybe it doesn't yield before breaking. Hence, only a UTS is listed.
Like you said, ASTM A47 is malleable with a yield of 220 MPa and UTS of 340 MPa. How can I compare an electric...
Thanks for your response, but I have some follow up question.
Is the gray iron per FC200 brittle?
Why doesn't ASTM A 278 spec list a UTS?
Which material is better for handling shock or sudden impulse load? (is it a malleable iron)
Thanks again,
mauner
Hi everyone,
Can anyone provide a comparison between cast iron for a motor frame between these two specifications?
ASTM A47/A47M
JIS G5501 FC200
Does FC200 correlate to the strength?
Thanks in advance,
mauner
How many of the 23 are vulnerable to the "one-two punch" of an earthquake and tsunami?
For SONGS, wikipedia states that the decommisioned unit 1 is being used to store fuel - is it under the 6 foot thick concrete containment?
Does anyone know how much time needs to pass before a fuel bundle...
I don't think the San Onofre plant has a spent fuel pool with a "tin roof" over it like the Fukushima plant.
I think the safest on-site storage method will be in a dry-cask.
The NRC should mandate all spent fuel to be removed from the pool and moved into a dry-cask storage as soon as it is...
Thanks GregLocock for the link, but it didn't really answer the question.
Here is my annual production:
Date total energy produced(kWh)
4/3/2010 1686.71
5/1/2010 1625.23
6/1/2010 1633.85
7/1/2010 1674.91
8/1/2010 1491.92
9/1/2010 1430.93
10/1/2010 1172.9
11/1/2010 951.5
12/1/2010 757.09...
Thankyou davefitz for being someone who understands the point of my lesson learned.
How do we get these concerns to the NRC task force investigating the Fukushima event for U.S. plants?
My point about the spent fuel was that it is safer in dry cask then in a pool with a "tin roof" over it.
The casks are inerted and welded closed. It is my understanding that the dry-cask design was based on the shipping container design done in the 1960's, which can withstand truck, train and...
I heard a news report that Japan delayed shipment of reprocessed fuel from France because they didn't have enough human resources to monitor the shipment.
Based on this, I'm wondering how much fuel was in the spent fuel pool and how does it compare to US Plants?
It is my understanding that...
thread626-261703
My roof has a 52 panel PV array with a DC rating of 11.7 kW.
The standard installation of U-tracks are bolted to the roof, which has a 30 degree angle. My peak power production occurs in late March and September is 10 to 10.5 kW for the solar noon hour - my house is in New...
How can you determine that fuel has melted through the reactor vessel based on radiation levels?
What does the RPV provide 4" steel = 1/10 thickness?
Does anyone know the contact raditation reading for a spent fuel bundel out of water?
Could abnormal radiation levels occur due to a shift in...
If there is no water, then fission cannot be sustained (subcritical).
Decay heat is not sufficient to "...melt or burst its way through the pressure vessel" [unlike Chernobyl which became prompt-critical and blew up the fuel (deflagration), setting the graphite moderating rods on fire]
Like...
My analogy was not welding material, but the process of melting solder. And yes, a greater heat source is required, but my point was that there is not sufficient heat available from decay heat alone. Conduction through the pressure vessel to ambient and boiling water will prevent the fuel from...
