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<p>Hi Bob,</p>
<p>The INFN collaborators request that you please provide some
support on the design authority and ASME issues pertaining to the
RICH OSP.</p>
<p>Thanks,</p>
<p>Marc<br>
</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 11/7/2016 3:57 PM, Timothy Whitlatch
wrote:<br>
</div>
<blockquote
cite="mid:1300440976.3140161.1478552274615.JavaMail.zimbra@jlab.org"
type="cite">
<div style="font-family: arial,helvetica,sans-serif; font-size:
12pt; color: #000000">
<div>Hi Valery,<br>
</div>
<div><br data-mce-bogus="1">
</div>
<div>I spoke with Septarshi about some of the pressure systems
questions. He stated that there was no DA assigned and Bob
Miller would assign one.<br data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div>The pressure system hazards will be reviewed and mitigated
by the DA and a pressure system number assigned if needed.<br
data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div>I am rejecting this OSP since there will be additions to
the THA and other information on the procedure.<br
data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div>Please let me know when this is ready again and I will
review again.<br data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div>Thanks,<br data-mce-bogus="1">
</div>
<div><br>
</div>
<div data-marker="__SIG_PRE__">Tim Whitlatch<br>
Hall D Engineer<br>
Jefferson Lab<br>
600 KELVIN DR STE 5<br>
Newport News, VA 23606-4468 <br>
757-269-5087</div>
<br>
<hr id="zwchr" data-marker="__DIVIDER__">
<div data-marker="__HEADERS__"><b>From: </b>"Marc McMullen"
<a class="moz-txt-link-rfc2396E" href="mailto:mcmullen@jlab.org"><mcmullen@jlab.org></a><br>
<b>To: </b>"Timothy Whitlatch" <a class="moz-txt-link-rfc2396E" href="mailto:whitey@jlab.org"><whitey@jlab.org></a><br>
<b>Sent: </b>Wednesday, November 2, 2016 1:58:47 PM<br>
<b>Subject: </b>Fwd: Re: [Dsg-rich] Fwd: OSP for CLAS 12 RICH<br>
</div>
<br>
<div data-marker="__QUOTED_TEXT__">Hi Tim,
Valery sent me a list of questions, which you asked. I have
responded to the questions inline, or at least pointed you to
the person who could provide an answer. Thanks,
Marc McMullen
Physics Division
Detector Support Group
7738
----- Forwarded Message -----
From: Marc McMullen To: <a class="moz-txt-link-abbreviated" href="mailto:dsg-rich@jlab.org">dsg-rich@jlab.org</a>
Sent: Tue, 01 Nov 2016 16:05:04 -0400 (EDT)
Subject: Re: [Dsg-rich] Fwd: OSP for CLAS 12 RICH
<p>Hi Valery,</p>
<p>George and I are discussing the questions and we will try
to answer or at least point out the appropriate Hall B staff
to help out. The answers are inline.</p>
<p>Thanks <br>
</p>
<p>Marc<br>
</p>
<br>
<div class="moz-cite-prefix">On 11/1/2016 2:23 PM, Valery
Kubarovsky wrote:<br>
</div>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>Dear George and Marc,</div>
<div><br>
</div>
<div>I submitted OSP for the RICH12 operation. It includes
gas cooling system and nitrogen purge system that you
designed. </div>
<div><br>
</div>
<div><a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="https://mis.jlab.org/mis/apps/mis_forms/operational_safety_procedure_form.cfm?ENTRY_ID=63644&approvalVersion=2"
target="_blank">https://mis.jlab.org/mis/apps/mis_forms/operational_safety_procedure_form.cfm?ENTRY_ID=63644&approvalVersion=2</a><br
data-mce-bogus="1">
</div>
<div><br>
</div>
<div>I got a couple of questions from Timothy Whitlatch,
who is reviewing this OSP. Please, send me the replies
to all his questions.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Valery</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<hr id="zwchr">
<div><b>From: </b>"Timothy Whitlatch" <a
moz-do-not-send="true" class="moz-txt-link-rfc2396E"
href="mailto:whitey@jlab.org" target="_blank"><whitey@jlab.org></a><br>
<b>To: </b>"Valery Kubarovsky" <a
moz-do-not-send="true" class="moz-txt-link-rfc2396E"
href="mailto:vpk@jlab.org" target="_blank"><vpk@jlab.org></a><br>
<b>Cc: </b>"Will Oren" <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:oren@jlab.org" target="_blank"><oren@jlab.org></a>,
"Bert Manzlak" <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:manzlak@jlab.org" target="_blank"><manzlak@jlab.org></a><br>
<b>Sent: </b>Tuesday, November 1, 2016 11:47:35 AM<br>
<b>Subject: </b>OSP for CLAS 12 RICH<br>
</div>
<div><br>
</div>
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>Good Morning Valery,<br>
</div>
<br>
<div>I have been looking over your OSP in order to
provide Pressure Systems approval.<br>
</div>
<br>
<div><a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="https://mis.jlab.org/mis/apps/mis_forms/operational_safety_procedure_form.cfm?ENTRY_ID=63644&approvalVersion=2"
target="_blank">https://mis.jlab.org/mis/apps/mis_forms/operational_safety_procedure_form.cfm?ENTRY_ID=63644&approvalVersion=2</a><br
data-mce-bogus="1">
</div>
<br>
<div>I have a few questions;<br>
</div>
<br>
<div>There are 2 pressure systems, air and nitrogen.<br>
</div>
<br>
<div>Are there associated JLAB pressure system numbers
assigned to these systems?<br>
</div>
</div>
</div>
</div>
</blockquote>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>Who is the JLAB DA (Design Authority) for each of
these systems?<br>
</div>
</div>
</div>
</div>
</blockquote>
Saptarshi Mandal worked on the ASME documentation for the
RICH. He may be able to answer both of the first two
questions.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<div>Are there associated personnel hazards with these
systems? (nothing indicated on the THA form).<br>
</div>
</div>
</div>
</div>
</blockquote>
Tyler Lemon is the DSG point of contact for the RICH
interlocks, he can assist you with any info on the interlock
information. That is with the exception of the RICH gas
controls interface chassis. <br>
<br>
This is a chassis which is being assembled by the DSG, it
contains two power supplies (24VDC and +/- 15V) which are used
to provide power for the mass flow transducers, humidity and
temperature sensors. It also provides an interconnect for the
sensors and transducers to the RICH Interlocks cRIO. The
chassis has circuit protection fuses, is grounded, and the
power supplies are completely enclosed to eliminate any
electrical shock hazards.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<div>Are there hazards associated with entering the
enclosure with the air cooling system on?<br>
</div>
</div>
</div>
</div>
</blockquote>
You may want to ask Bob Miller this question.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<div>Is there an ODH hazard in the hall due to the
nitrogen system?<br>
</div>
</div>
</div>
</div>
</blockquote>
Although the nitrogen in the system is a relatively small
amount, Bob Miller would have to provide the answer this
question...as all Hall Gas systems have to be considered in an
ODH calculation.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<div>Are there detailed procedures for operating the
nitrogen and air systems?<br>
</div>
</div>
</div>
</div>
</blockquote>
DSG will be providing software to control turning the
compressors on and off remotely, additionally there will be a
local method. Once defined, DSG will provide documentation and
training to the Hall B staff responsible for daily operation
of the detector and any after hours on-call support. Once on,
the gas operation will not be controlled by any
instrumentation such as a mass flow controller, the system is
set up to always flow gas/air as long as everything is in
working order.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<div>Section 4.2 on the OSP procedure form states that
the individuals approved for the operations are
listed on the attached document. I do not see this
list attached.<br>
</div>
</div>
</div>
</div>
</blockquote>
This is another Hall B decision, they would be providing daily
operations/on-call support. Bob may be able to give you a
list.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<div>In Section 4.4, is there equipment specific
training required? Is pressure system awareness
training (SAF130A) required for people operating the
air and nitrogen systems?<br>
</div>
</div>
</div>
</div>
</blockquote>
Again, Saptarshi provided the documentation on the relief
valves and any other ASME pressure numbers. The piping and
valve equipment is all standard, we do not perceive any
necessary adjustments to valves once they are set. The tank is
above the 15PSI limit and is considered a pressure system, but
there are engineer specified relief valves in the design and
there are no welds. Saptarshi can probably give you more
specifics, if you need them.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<div>There are several "TBD"s for threshold values.
Have these been determined?<br>
</div>
</div>
</div>
</div>
</blockquote>
The system is in early development. The tank regulator
settings have not been determined yet as they are directly
related to the desired temperature of the electronics.<br>
<blockquote
cite="mid:2029587903.2234436.1478024622629.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000"><br>
<br>
<br>
<div>Thank you,<br>
</div>
<br>
<div>Tim Whitlatch<br>
Hall D Engineer<br>
Jefferson Lab<br>
600 KELVIN DR STE 5<br>
Newport News, VA 23606-4468 <br>
757-269-5087</div>
</div>
<br>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre>_______________________________________________
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</pre>
</blockquote>
<br>
<pre class="moz-signature">--
Marc McMullen
Detector Support Group
757-269-7738</pre>
<br>
</div>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Marc McMullen
Detector Support Group
757-269-7738</pre>
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