From: Hutch Neilson [hneilson@pppl.gov]
Sent: Friday, May
14, 2004 2:10 PM
To: Bob Simmons
Cc: Brad Nelson; Wayne T.
Reiersen; Paul Goranson; Michael Zarnstorff
Subject: Re: Resolution of
Comments on ECP-04-008
Our
design has always had ports that extend all the way through the cryostat, that
is not new. I do not see any reason to change that just because we are
putting in a flange and transitioning to stainless. For good integration
the design needs to have ports coming all the way out through the
cryostat, to claim space inside and on the surface of the cryostat and to
provide a way for diagnostics to interface. There is no money in the budget to
design a large number of custom extensions. In those cases (relatively few I
expect) where somebody wants to modify the geometry of a removable extension, it
will be entertained as a change proposal and accommodated as far as
possible.
I thought this is what was decided. We are probably not
including the removable extensions in the VVSA contract, but they should be
included somewhere in WBS 12.
If I’m off base I’m sure someone will let
me know,
Hutch
On 5/14/04 13:07, "Bob Simmons"
wrote:
Hi
Hutch,
All your comments have been incorporated with the
exception of the following items:
(1)
Port Extensions: The outer port extensions are
NOT included in this estimate. Mike Z. has opined that we should
just go ahead now and procure generic extensions thru the cryostat. Brad
is of the opinion that there is no real need to do that now. It will
probably be several years before diagnostics comes up with specific
requirements, so any generic port extension runs the risk of not being
adequate. We can do either approach – just let me know so that I can get
Brad to estimate cost of the 33 generic port
extensions.
(2)
Evaluation of Options: I really messed this one
up. Port configuration studies considered fewer and more ports (up to 45
new ports). Fewer rejected since did not provide sufficient diagnostic
flexibility. 45 ports were a non-starter also since the 6 new ports each
at port 13 and port 14 just did not leave sufficient metal for structural
support. The 33 new ports provided the maximum
flexibility.
Draft B attached for your review and comment.
Still missing affirmative statement of impacts on other WBS elements
(although it appears that there is no impact on WBS 14).
Bob
S.
Bob Simmons
NCSX Systems Engineering Support
Manager
Princeton Plasma Physics Laboratory (PPPL)
Tel #: (609)
243-2766
Fax #: (609) 243-3030