[Esr-users] ESR Configuration change

[Robert Norton]

Cryo would like for this to wait until tomorrow afternoon or Wed morning 
as this will place a larger load on ESR, and the 4K CHL/ESR 
transfer-line will be unavailable to support ESR during Mon/Tues due to 
ongoing CHL1 work. We anticipate the ongoing work to be completed by 
tomorrow afternoon.

On 10/9/2017 9:24 AM, Qiuli Sun wrote:
> Dear Rob and Dave,
>
> We plan to run our HB magnet today. We would like to open this afternoon during our magnet test its warm return to lower its pressure and therefore its temperature.
>
> Is it okay with you?
>
> Thanks a lot
>
> Eric
>
> ----- Original Message -----
> From: "Eric Sun" <qsun at jlab.org>
> To: "Robert Norton" <norton at zmail.jlab.org>
> Cc: "Mike Fowler" <fowler at jlab.org>, esr-users at jlab.org
> Sent: Friday, October 6, 2017 4:11:08 PM
> Subject: Re: [Esr-users] ESR Configuration change
>
> Okay. Will do it.
>
> Eric
>
> ----- Original Message -----
> From: "Robert Norton" <norton at zmail.jlab.org>
> To: "Eric Sun" <qsun at jlab.org>
> Cc: "Mike Fowler" <fowler at jlab.org>, esr-users at jlab.org
> Sent: Friday, October 6, 2017 2:32:28 PM
> Subject: Re: [Esr-users] ESR Configuration change
>
> Please send these emails to 'esr-users at jlab.org' in the future.
>
> I Believe we should be able to support that this afternoon.
>
>
> Hall B Return is presently configured to CHL Recovery.
>
>
> On 10/6/2017 12:01 PM, Qiuli Sun wrote:
>> Rob,
>>
>> We plan to run the HB magnet this afternoon. We may experience a quench, which may disturb the cyro system a little bit. The disturbance is not violent because its stored energy is low.
>>
>> Can we run the HB magnet?
>>
>> Thanks
>>
>> Eric
>>
>> ----- Original Message -----
>> From: "Robert Norton" <norton at zmail.jlab.org>
>> To: esr-users at jlab.org
>> Cc: "Swapnil Shrishrimal" <swapnil at jlab.org>
>> Sent: Friday, October 6, 2017 11:18:31 AM
>> Subject: [Esr-users] ESR Configuration change
>>
>> This email is for informational purposes only, no action is required
>> from you.
>>
>> This afternoon we are hoping to switch the transferline vaporizer flow
>> (used to keep CHL-ESR Xferline cold). Presently it is returning ot the
>> CHL Recovery system and consuming our recovery capacity. We will change
>> it to ESR's compressor system in order to free up recovery flow at CHL,
>> and while we anticipate no problems from this there is a possibility it
>> could impact the ESR suction pressure. If it does we will have to come
>> to some resolution (reducing loads, living with higher ESR suction
>> pressure, or putting it back on the CHL Recovery system). This ESR
>> suction pressure is the return point for the Hall cold return pressures,
>> so an increase in that tends to increase all cold return pressures.
>>
>> Thanks, and have a wonderful day!
>>
>>
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