[dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes

[Marco Mirazita]

Hi Tyler,
for me Monday ta 11 is ok,
Let's wait a confirmation also from the others, then I will set up a 
bluejeans.
Thanks,
Marco


Il 2020-11-18 15:58 Tyler Lemon ha scritto:
> Hi Marco,
> 
>  It's good to hear that the next RICH sector is still moving along.
> 
>  Thursday and Friday next week are holidays for Thanksgiving so we'd
> be able to have the meeting any time next Monday, Tuesday, or
> Wednesday except for
> 
>  Monday 11:00am - 1:00pm
> 
>  Tuesday 11:00am - 1:00pm
> 
>  Wednesday 12:00pm - 3:00pm
> 
>  Tyler
> 
> -------------------------
> 
> FROM: Marco Mirazita <Marco.Mirazita at lnf.infn.it>
>  SENT: Tuesday, November 17, 2020 5:38 AM
>  TO: Tyler Lemon <tlemon at jlab.org>
>  CC: dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
>  SUBJECT: Re: [dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH
> aerogel dryboxes
> 
> Hi Tyler,
>  despite the problems due to the covid emergency, the construction of
> the
>  second RICH module is progressing and we are getting close to several
> 
>  shipments of material to jlab, not only the aerogel mentioned by Bob.
>  Therefore I would like to have a meeting with you, the DSG and the
> other
>  people involved in the RICH project to discuss how to plan the work
> for
>  the next few months.
>  Would you be available for a meeting next week? If yes I will make a
>  doodle to fix the date and time.
>  Thanks,
>  Marco
> 
>  Il 2020-11-16 16:45 Tyler Lemon ha scritto:
>  > Hi Bob,
>  >
>  > Thank you for the information.
>  >
>  > Tyler
>  >
>  > -------------------------
>  >
>  > FROM: Bob Miller <rmiller at jlab.org>
>  > SENT: Monday, November 16, 2020 10:43 AM
>  > TO: Tyler Lemon <tlemon at jlab.org>
>  > SUBJECT: Fwd: [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel
> dryboxes
>  >
>  >
>  > Hi Tyler,
>  >
>  > Please see Marco's response below. Based on his email, I will leave
>  > the repairs or purchase to you and I will not design an N2 system
> at
>  > this time.
>  >
>  > Regards,
>  >
>  > Bob
>  >
>  > -------- Forwarded Message --------
>  >
>  > SUBJECT:
>  > [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes
>  >
>  > DATE:
>  > Fri, 13 Nov 2020 13:42:22 +0100
>  >
>  > FROM:
>  > Marco Mirazita <Marco.Mirazita at lnf.infn.it>
>  >
>  > TO:
>  > Bob Miller <rmiller at jlab.org>
>  >
>  > CC:
>  > Marco Contalbrigo <mcontalb at fe.infn.it>, marco mirazita
>  > <marco.mirazita at lnf.infn.it>
>  >
>  > Dear Bob,
>  > let me do a couple of consideration first.
>  > We have about 40 additional tiles that will be soon shipped to jlab
>  > and that should be safely stored.
>  > Then, we still plan to have the second RICH module assembled in the
>  > second half of 2021, but in the present covid situation I can't be
> too
>  > optimistic that this plan could be actually completed. Therefore,
> we
>  > must consider the possibility that we will need to have the aerogel
>  > stored in the cabinets for very long time. In this scenario,
> purging
>  > the broken dry boz with nitrogen doesn't seem to me really
> practical.
>  > Repairing the broken one (which, from Tyler's picture look to me
> the
>  > INFN one, with european power unit) could also not be the best,
>  > because most likely we will need additional space for the upcoming
>  > tiles. in the past we borrowed some free space from the large
> cabinet
>  > in the EEL-124, but I heard from Tyler that also this cabinet is
> not
>  > working.
>  > So, my suggestion would be to buy a new cabinet, with double
> capacity
>  > then the broken one, if possible.
>  > Alternatively, I would consider to repair the large cabinet rather
>  > then the small one.
>  > Best regards,
>  > Marco
>  >
>  > Il 2020-11-12 17:07 Bob Miller ha scritto:
>  >
>  >> Hi Marco,
>  >>
>  >> Tyler reports that one of the RICH aerogel storage dryboxes failed
>  >> last week.
>  >>
>  >> Do you want to purge the box with N2 as suggested below, or have
>  >> the
>  >> storage box repaired or replaced?
>  >>
>  >> Regards,
>  >>
>  >> Bob
>  >>
>  >> -------- Forwarded Message --------
>  >>
>  >> SUBJECT:
>  >> N2 bottle for RICH aerogel dryboxes
>  >>
>  >> DATE:
>  >> Thu, 12 Nov 2020 09:37:01 -0500
>  >>
>  >> FROM:
>  >> Tyler Lemon <tlemon at jlab.org>
>  >>
>  >> TO:
>  >> Bob Miller <rmiller at jlab.org>
>  >>
>  >> CC:
>  >> dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
>  >>
>  >> Hello Bob,
>  >>
>  >> Last week we had one of the RICH aerogel storage dryboxes fail.
>  >> Fortunately, we've been able to relocate the aerogel in that
> drybox
>  >> into the other two dryboxes. Since we're now storing aerogel at or
>  >> even above full capacity of the two working dryboxes, if there's a
>  >> problem with one of those, we would not have anywhere else to move
>  >> the
>  >> aerogel.
>  >>
>  >> Because of this, could you put together a system with a nitrogen
>  >> bottle to be able to purge the dryboxes with nitrogen?
>  >>
>  >> The set up would be the same as we discussed back in October
> before
>  >> the power outage in the EEL. I think all that would be needed is a
>  >> nitrogen bottle with a regulator, relief valve, local pressure
>  >> indication, rotameter, and the fittings to run a 1/4" gas line to
>  >> the
>  >> boxes. We already have a few feedthroughs that would be used to
>  >> connect the gas line to the box.
>  >>
>  >> At some point we may want to add remote pressure monitoring to the
>  >> set up (we don't have the sensors available right now but may in
>  >> the
>  >> future), so if needed, please include those in the pressure system
>  >> design.
>  >>
>  >> If you have any questions or need any more information, let us
>  >> know.
>  >>
>  >> Thanks,
>  >> Tyler
>  >
>  >
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