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Hi Marco,</div>
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<br>
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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.</div>
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<br>
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Has the plan changed?<br>
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<br>
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Currently, we've only planned for one, larger tent (what Marc sent), but we can get materials for a second if it's needed.</div>
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<br>
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-Tyler<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> dsg-hallb_rich <dsg-hallb_rich-bounces@jlab.org> on behalf of Marco Mirazita <Marco.Mirazita@lnf.infn.it><br>
<b>Sent:</b> Wednesday, April 20, 2022 12:06 PM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Cc:</b> dsg-hallb_rich@jlab.org <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> [dsg-hallb_rich] [EXTERNAL] Re: Dry tent</font>
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<div class="PlainText">Hi Mark,<br>
I discussed with Sandro the dimensions of the tents.<br>
We need 2 tents, one for the assembly of the aerogel on the frontal <br>
panel bottom and one for the assembly of the aerogel on the frontal <br>
panel top.<br>
The dimensions for the frontal panel top should be: length 4 meters, <br>
width 1.5 meters, height 2 meters<br>
The dimensions for the frontal panel bottom should be: length 2.5 meter, <br>
width 2.5 meter, height 2 meter<br>
<br>
Please also consider that:<br>
- the tent should be closed by the plastic on all the four sides, but in <br>
one side we cut a door of about 1.5 m width.<br>
- the door is open during the assembly and is closed by a strap after <br>
work<br>
- we need plastic sheet also to wrap the panels every day when we finish <br>
working<br>
- if necessary, the height of the tents could be reduced to 1.8 m<br>
- the lateral dimensions are the minimum we need to accommodate the <br>
panels plus some extra space for a table and the dry cabinet and to <br>
allow the personnel to move smoothly around the panels<br>
<br>
I attached a couple of pictures of the tents we assembled in 2017.<br>
We are available for a phone meeting, if necessary.<br>
Best regards,<br>
Marco<br>
<br>
<br>
<br>
Il 2022-04-20 15:45 Marc Mcmullen ha scritto:<br>
> Good morning Tim and Jen,<br>
> <br>
> Within the next week or so, we expect to have the RICH detector dry<br>
> tent reassembled in EEL 124 (cleanroom). This will be the same size as<br>
> in 2017 to follow the guide lines from chapter 2 appendix 1. The<br>
> structure will be ~12' x 5' and will have an aluminum frame with for<br>
> the covering.<br>
> <br>
> Just as a reminder, the tent will be used to house Aerogel as it is<br>
> being assembled on the detector panels. A dry-box will be used to<br>
> reduce the humidity inside the tent which will prevent the Aerogel<br>
> from absorbing moisture.<br>
> <br>
> After we get it assembled, we will invite you to come and review it.<br>
> <br>
> Regards,<br>
> Marc<br>
> <br>
> -------------------------<br>
> <br>
> From: Timothy Minga <minga@jlab.org><br>
> Sent: Wednesday, October 18, 2017 3:56 PM<br>
> To: Marc McMullen <mcmullen@jlab.org><br>
> Cc: manzlak <manzlak@jlab.org>; Jennifer Williams <jennifer@jlab.org>;<br>
> dsg-rich <dsg-rich@jlab.org><br>
> Subject: Re: Dry tent<br>
> <br>
> Marc,<br>
> <br>
> The construction of the tent must still adhere to Section 3.2<br>
> Construction Materials, the square footage dictates whether the tent<br>
> should require sprinkler protection. The approval process is fairly<br>
> quick if section 3.0 is followed. I can come out and bless it without<br>
> delay.<br>
> <br>
> Tim<br>
> <br>
> ----- Original Message -----<br>
> From: "Marc McMullen" <mcmullen@jlab.org><br>
> To: "Timothy Minga" <minga@jlab.org><br>
> Cc: "manzlak" <manzlak@jlab.org>, "Jennifer Williams"<br>
> <jennifer@jlab.org>, "dsg-rich" <dsg-rich@jlab.org><br>
> Sent: Wednesday, October 18, 2017 3:10:33 PM<br>
> Subject: Re: Dry tent<br>
> <br>
> Hi Tim,<br>
> <br>
> I read the section on portable clean rooms, so just to confirm, if we<br>
> keep the foot print below 65sf...we can build it with basic<br>
> non-flammables (FR plastic, unistrut...ect)?<br>
> <br>
> or<br>
> <br>
> If the structure needs to be slightly larger than that...e.g. 84sf,<br>
> how<br>
> long is the approval process? Is it just a few days, or will it take<br>
> more than that for the approval items:<br>
> 1. FPE inspection<br>
> 2. Protection requirements for the room.<br>
> 3. Assignment of the unique identifying number.<br>
> 4. Permit issue<br>
> <br>
> Thanks in advance, this information will help us plan efficiently.<br>
> Marc<br>
> On 10/16/2017 12:09 PM, Timothy Minga wrote:<br>
>> Marc,<br>
>> <br>
>> Please see ES&H manual<br>
> (<a href="https://www.jlab.org/ehs/ehsmanual/fire/Ch2App1.htm">https://www.jlab.org/ehs/ehsmanual/fire/Ch2App1.htm</a>) which describes<br>
> the criteria for installing clean rooms or tents which block out the<br>
> bldgs. sprinkler system. Please adhere to these guidelines under<br>
> section 3.0 Interior relocatable structures (aka clean rooms). If you<br>
> need further information give me a call.<br>
>> <br>
>> Tim<br>
>> <br>
>> ----- Original Message -----<br>
>> From: "Marc McMullen" <mcmullen@jlab.org><br>
>> To: "Timothy Minga" <minga@jlab.org><br>
>> Cc: "manzlak" <manzlak@jlab.org>, "Jennifer Williams"<br>
> <jennifer@jlab.org><br>
>> Sent: Monday, October 16, 2017 11:56:41 AM<br>
>> Subject: Re: Dry tent<br>
>> <br>
>> Hi Tim and Jen,<br>
>> <br>
>> The tent will have to be made with FR plastic. I have found that<br>
> online,<br>
>> so that issue is covered.<br>
>> <br>
>> To Jen's point, we would be storing detector components in the tent,<br>
>> would it be ok for personnel to enter briefly to retrieve parts, say<br>
>> less than 5 minutes.<br>
>> <br>
>> Marc<br>
>> <br>
>> <br>
>> On 10/16/2017 11:33 AM, Timothy Minga wrote:<br>
>>> Marc,<br>
>>> <br>
>>> It needs to be flame retardant, and if your getting it at Walmart I<br>
> doubt that's the case.<br>
>>> <br>
>>> Tim<br>
>>> <br>
>>> ----- Original Message -----<br>
>>> From: "Marc McMullen" <mcmullen@jlab.org><br>
>>> To: "manzlak" <manzlak@jlab.org>, "Timothy Minga" <minga@jlab.org><br>
>>> Cc: "Jennifer Williams" <jennifer@jlab.org><br>
>>> Sent: Monday, October 16, 2017 9:18:51 AM<br>
>>> Subject: Re: Dry tent<br>
>>> <br>
>>> Hi Tim,<br>
>>> <br>
>>> We are working with INFN on the RICH detector, and we need a large<br>
>>> storage area to house some panels which will have Aerogel blocks<br>
>>> assembled on them. Aerogel absorbs moisture, which ruins the<br>
> property of<br>
>>> the material. Typically, small Aerogel would be stored in a dry<br>
> box, but<br>
>>> once it is installed on a panel it becomes too large.<br>
>>> <br>
>>> The proposed solve for the storage of the panels of Aerogel is a<br>
>>> temporary plastic greenhouse (see link), we would tape it to the<br>
> floor<br>
>>> of the cleanroom and install a drybox to dehumidify the area to<br>
> less<br>
>>> than 1% RH. The large cleanroom is typically 50% RH. Are there any<br>
>>> safety procedures we would need to follow or safety documents which<br>
>>> would be needed prior to assembling this greenhouse.<br>
>>> <br>
>>> <br>
> <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www.walmart.com_ip_10-2DX7-2DX6-2DLarger-2DWalk-2DIn-2DGreenhouse_116568684-23read-2Dmore&d=DwICAg&c=CJqEzB1piLOyyvZjb8YUQw&r=Ry65GV1L9CI4W-wouYF1Yh0O9PuhLc4ZWUkBi_Op2h8&m=OSY1yFubAp2edAvrmipqBdWDxdpIalQuSHZhCBp8-V7x6_ib8OaCkd6kh-heSdsV&s=7d4vgydvvRzE3WzGw2x3DD6ij_2nVH5KiiuYOnAdFac&e=">
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<br>
> [1]<br>
>>> <br>
>>> <br>
>>> <br>
> <br>
> --<br>
> Marc McMullen<br>
> Detector Support Group<br>
> 757-269-7738<br>
> <br>
> <br>
> Links:<br>
> ------<br>
> [1] <br>
> <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www.walmart.com_ip_10-2DX7-2DX6-2DLarger-2DWalk-2DIn-2DGreenhouse_116568684-23read-2Dmore&d=DwICAg&c=CJqEzB1piLOyyvZjb8YUQw&r=Ry65GV1L9CI4W-wouYF1Yh0O9PuhLc4ZWUkBi_Op2h8&m=OSY1yFubAp2edAvrmipqBdWDxdpIalQuSHZhCBp8-V7x6_ib8OaCkd6kh-heSdsV&s=7d4vgydvvRzE3WzGw2x3DD6ij_2nVH5KiiuYOnAdFac&e=">
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<br>
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