NRC likely never postulated H2 explosions size & destructive force at Fukushima

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From: Salley, MarkHenry
Sent: Monday, March 28, 2011 6:29 PM
To: Coe, Doug
Cc: Correia, Richard
Subject: Additional RES areas post Fukushirna Dai ichi

Doug,
Per your request from this morning’s meeting, Re: Brian’s request for Additional Areas of Research post-Fukushima Dai ichi; four jump to mind:

1. Look at Emergency H2 venting. Prior to this event, I do not believe any of us would have postulated the size & destructive force of the H2 explosions inside the structure.

2. Look at emergency make-up to the Spent Fuel Pool (SPF). There may be some very economical ways to have a pre-piped standpipe for emergency re-filling.

3. Look at emergency core cooling and postulated alternatives given all ECCS systems are unavailable.

4. Look at emergency response given the larger area wide catastrophe and what can be expected.

MHS


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