[dsg-hallb_rich] [EXTERNAL] Re: Dry tent

Wed Apr 20 12:17:53 EDT 2022

That is correct on the safety restrictions.

We'll have a second smaller tent ready then.
________________________________
From: Marco Contalbrigo <mcontalb at fe.infn.it>
Sent: Wednesday, April 20, 2022 12:15 PM
To: Tyler Lemon <tlemon at jlab.org>
Cc: Marco Mirazita <Marco.Mirazita at lnf.infn.it>; Marc Mcmullen <mcmullen at jlab.org>; dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
Subject: Re: [dsg-hallb_rich] [EXTERNAL] Re: Dry tent

Dear Tyler,
if I am not mistaken, safety restrictions limit the
area of the tent. In 2017, we had two tents to fit the
different panel shapes and provide the minimum space
to work around.
Bests, Marco.

On Wed, 20 Apr 2022, Tyler Lemon wrote:

> Hi Marco,
>
> In the meeting last Friday, we decided that only a bag or envelope purged with nitrogen to store the larger panel
> after assembly will be needed rather than two separate structures.
>
> Has the plan changed?
>
> Currently, we've only planned for one, larger tent (what Marc sent), but we can get materials for a second if it's
> needed.
>
> -Tyler
>
> ____________________________________________________________________________________________________________________
> From: dsg-hallb_rich <dsg-hallb_rich-bounces at jlab.org> on behalf of Marco Mirazita <Marco.Mirazita at lnf.infn.it>
> Sent: Wednesday, April 20, 2022 12:06 PM
> To: Marc Mcmullen <mcmullen at jlab.org>
> Cc: dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
> Subject: [dsg-hallb_rich] [EXTERNAL] Re: Dry tent
> Hi Mark,
> I discussed with Sandro the dimensions of the tents.
> We need 2 tents, one for the assembly of the aerogel on the frontal
> panel bottom and one for the assembly of the aerogel on the frontal
> panel top.
> The dimensions for the frontal panel top should be: length 4 meters,
> width 1.5 meters, height 2 meters
> The dimensions for the frontal panel bottom should be: length 2.5 meter,
> width 2.5 meter, height 2 meter
>
> Please also consider that:
> - the tent should be closed by the plastic on all the four sides, but in
> one side we cut a door of about 1.5 m width.
> - the door is open during the assembly and is closed by a strap after
> work
> - we need plastic sheet also to wrap the panels every day when we finish
> working
> - if necessary, the height of the tents could be reduced to 1.8 m
> - the lateral dimensions are the minimum we need to accommodate the
> panels plus some extra space for a table and the dry cabinet and to
> allow the personnel to move smoothly around the panels
>
> I attached a couple of pictures of the tents we assembled in 2017.
> We are available for a phone meeting, if necessary.
> Best regards,
> Marco
>
>
>
> Il 2022-04-20 15:45 Marc Mcmullen ha scritto:
> > Good morning Tim and Jen,
> >
> >  Within the next week or so, we expect to have the RICH detector dry
> > tent reassembled in EEL 124 (cleanroom). This will be the same size as
> > in 2017 to follow the guide lines from chapter 2 appendix 1. The
> > structure will be ~12' x 5' and will have an aluminum frame with for
> > the covering.
> >
> >  Just as a reminder, the tent will be used to house Aerogel as it is
> > being assembled on the detector panels. A dry-box will be used to
> > reduce the humidity inside the tent which will prevent the Aerogel
> > from absorbing moisture.
> >
> >  After we get it assembled, we will invite you to come and review it.
> >
> >  Regards,
> >  Marc
> >
> > -------------------------
> >
> > From: Timothy Minga <minga at jlab.org>
> > Sent: Wednesday, October 18, 2017 3:56 PM
> > To: Marc McMullen <mcmullen at jlab.org>
> > Cc: manzlak <manzlak at jlab.org>; Jennifer Williams <jennifer at jlab.org>;
> > dsg-rich <dsg-rich at jlab.org>
> > Subject: Re: Dry tent
> >
> > Marc,
> >
> > The construction of the tent must still adhere to Section 3.2
> > Construction Materials, the square footage dictates whether the tent
> > should require sprinkler protection. The approval process is fairly
> > quick if section 3.0 is followed. I can come out and bless it without
> > delay.
> >
> > Tim
> >
> > ----- Original Message -----
> > From: "Marc McMullen" <mcmullen at jlab.org>
> > To: "Timothy Minga" <minga at jlab.org>
> > Cc: "manzlak" <manzlak at jlab.org>, "Jennifer Williams"
> > <jennifer at jlab.org>, "dsg-rich" <dsg-rich at jlab.org>
> > Sent: Wednesday, October 18, 2017 3:10:33 PM
> > Subject: Re: Dry tent
> >
> > Hi Tim,
> >
> > I read the section on portable clean rooms, so just to confirm, if we
> > keep the foot print below 65sf...we can build it with basic
> > non-flammables (FR plastic, unistrut...ect)?
> >
> > or
> >
> > If the structure needs to be slightly larger than that...e.g.  84sf,
> > how
> > long is the approval process? Is it just a few days, or will it take
> > more than that for the approval items:
> > 1. FPE inspection
> > 2. Protection requirements for the room.
> > 3. Assignment of the unique identifying number.
> > 4. Permit issue
> >
> > Thanks in advance, this information will help us plan efficiently.
> > Marc
> > On 10/16/2017 12:09 PM, Timothy Minga wrote:
> >> Marc,
> >>
> >> Please see ES&H manual
> > (https://www.jlab.org/ehs/ehsmanual/fire/Ch2App1.htm) which describes
> > the criteria for installing clean rooms or tents which block out the
> > bldgs. sprinkler system. Please adhere to these guidelines under
> > section 3.0 Interior relocatable structures (aka clean rooms). If you
> > need further information give me a call.
> >>
> >> Tim
> >>
> >> ----- Original Message -----
> >> From: "Marc McMullen" <mcmullen at jlab.org>
> >> To: "Timothy Minga" <minga at jlab.org>
> >> Cc: "manzlak" <manzlak at jlab.org>, "Jennifer Williams"
> > <jennifer at jlab.org>
> >> Sent: Monday, October 16, 2017 11:56:41 AM
> >> Subject: Re: Dry tent
> >>
> >> Hi Tim and Jen,
> >>
> >> The tent will have to be made with FR plastic. I have found that
> > online,
> >> so that issue is covered.
> >>
> >> To Jen's point, we would be storing detector components in the tent,
> >> would it be ok for personnel to enter briefly to retrieve parts, say
> >> less than 5 minutes.
> >>
> >> Marc
> >>
> >>
> >> On 10/16/2017 11:33 AM, Timothy Minga wrote:
> >>> Marc,
> >>>
> >>> It needs to be flame retardant, and if your getting it at Walmart I
> > doubt that's the case.
> >>>
> >>> Tim
> >>>
> >>> ----- Original Message -----
> >>> From: "Marc McMullen" <mcmullen at jlab.org>
> >>> To: "manzlak" <manzlak at jlab.org>, "Timothy Minga" <minga at jlab.org>
> >>> Cc: "Jennifer Williams" <jennifer at jlab.org>
> >>> Sent: Monday, October 16, 2017 9:18:51 AM
> >>> Subject: Re: Dry tent
> >>>
> >>> Hi Tim,
> >>>
> >>> We are working with INFN on the RICH detector, and we need a large
> >>> storage area to house some panels  which will have Aerogel blocks
> >>> assembled on them. Aerogel absorbs moisture, which ruins the
> > property of
> >>> the material. Typically, small Aerogel would be stored in a dry
> > box, but
> >>> once it is installed on a panel it becomes too large.
> >>>
> >>> The proposed solve for the storage of the panels of Aerogel is a
> >>> temporary plastic greenhouse (see link), we would tape it to the
> > floor
> >>> of the cleanroom and install a drybox to dehumidify the area to
> > less
> >>> than 1% RH. The large cleanroom is typically 50% RH. Are there any
> >>> safety procedures we would need to follow or safety documents which
> >>> would be needed prior to assembling this greenhouse.
> >>>
> >>>
> >https://urldefense.proofpoint.com/v2/url?u=https-3A__www.walmart.com_ip_10-2DX7-2DX6-2DLarger-2DWalk-2DIn-2DGreenho
> use_116568684-23read-2Dmore&d=DwICAg&c=CJqEzB1piLOyyvZjb8YUQw&r=Ry65GV1L9CI4W-wouYF1Yh0O9PuhLc4ZWUkBi_Op2h8&m=OSY1
> yFubAp2edAvrmipqBdWDxdpIalQuSHZhCBp8-V7x6_ib8OaCkd6kh-heSdsV&s=7d4vgydvvRzE3WzGw2x3DD6ij_2nVH5KiiuYOnAdFac&e=
> > [1]
> >>>
> >>>
> >>>
> >
> > --
> > Marc McMullen
> > Detector Support Group
> > 757-269-7738
> >
> >
> > Links:
> > ------
> > [1]
> >https://urldefense.proofpoint.com/v2/url?u=https-3A__www.walmart.com_ip_10-2DX7-2DX6-2DLarger-2DWalk-2DIn-2DGreenho
> use_116568684-23read-2Dmore&d=DwICAg&c=CJqEzB1piLOyyvZjb8YUQw&r=Ry65GV1L9CI4W-wouYF1Yh0O9PuhLc4ZWUkBi_Op2h8&m=OSY1
> yFubAp2edAvrmipqBdWDxdpIalQuSHZhCBp8-V7x6_ib8OaCkd6kh-heSdsV&s=7d4vgydvvRzE3WzGw2x3DD6ij_2nVH5KiiuYOnAdFac&e=
> > _______________________________________________
> > dsg-hallb_rich mailing list
> > dsg-hallb_rich at jlab.org
> > https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rich
>
>
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