[dsg-hallb_rich] Dry tent

[Marc Mcmullen]

Hi Tim and Jen,

The covering material was deleted from my email. It is fire retardant plastic<https://www.grainger.com/ec/pdf/4FPK8_1.pdf>.


Regards,
Marc
________________________________
From: Marc Mcmullen <mcmullen at jlab.org>
Sent: Wednesday, April 20, 2022 9:45 AM
To: Tim Minga <minga at jlab.org>
Cc: Bert Manzlak <manzlak at jlab.org>; Jennifer Williams <jennifer at jlab.org>; dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
Subject: Re: Dry tent

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://www.walmart.com/ip/10-X7-X6-Larger-Walk-In-Greenhouse/116568684#read-more
>>
>>
>>

--
Marc McMullen
Detector Support Group
757-269-7738
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