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<p>Hi Matt,</p>
<p>I know you and Bob were planning to have a phone conference with
Stephan Aune concerning the pressure systems analysis. In Georges'
section #1 of the email attached, he refers to the Saclay
distribution system (in bold print). Will this portion system be
approved for gas flow upon arrival, or will there have to be an
analysis done when it arrives. This info is critical with respect
to the time frame of the Saclay scheduled activities/tests. DSG
will be providing the premixed source of gas to the Saclay
distribution, as long as the requirements have been met.</p>
<p>Thanks,</p>
<p>Marc<br>
</p>
<br>
<div class="moz-cite-prefix">On 4/26/2017 4:09 PM, George Jacobs
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:f8e90c05-96bd-b599-e90d-36017d52c487@jlab.org">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
There are 3 different pressure systems to look at for this. We
should discuss them independently to avoid confusion.<br>
<br>
#1 -------- MVT Test Setup in EEL rm124 --------<br>
<br>
The 1st is the test setup for MVT in EEL rm 124. This uses
pre-mixed cylinders of 10% C4H10 in argon gas. This is needed by
29 May. See the attached files MVT-P&I-EEL-0404-2017.pdf (
P&I diagram) and MVT-EEL-04-04-2017.xlsx (Components
spreadsheet) This is needed in 30 days.<br>
<br>
The P&I diagram shows the test setup we plan to use. <b>There
are unknown components contained in the box labeled MVT</b>.
This contains the Saclay gas distribution piping, flow control,
and of course the detector. The DA must have the details of what
will be used. The DA requires all component information to make
his assessment. <br>
<br>
#2 -------- FT Test Setup in Hall B -------<br>
<br>
Once the FT tracker is installed in Hall B, it will require gas
for testing. This test setup will supply gas from the Hall B
target gas pad behind the counting house into the hall using
pre-existing gas lines. This uses pre-mixed cylinders of 10% C4H10
in argon gas. This will be needed once the FT is installed in
July. See attached files FT-P&I-Hall-04-04-2017-Model.pdf
(P&I diagram) and FT-Hall-04-04-2017.xlsx (Components
spreadsheet)<br>
<br>
The P&I diagram shows the test setup we plan to use. <b>There
are unknown components contained in the box labeled FT</b>. This
contains the Saclay gas distribution piping, flow control, and of
course the detector. The DA must have the details of what will be
used. The DA requires all component information to make his
assessment. <br>
<br>
#3 ------- MVT Gas Mixing and Supply in 96B Gas Shed ------<br>
<br>
For an overview of the mixing system, I have attached the
powerpoint file MVT-GasMixingSystem-7-1-2016.pptx<br>
<br>
There are 2 gas mixtures required (1) 10% C4H10 in argon and (2)
10% CF4 10% C4H10 in argon. The two gas mixtures will be produced
in the gas shed by the mixing system. The gas will flow from the
gas shed to hall B in 2 pre-existing temperature controlled lines.
The attached files; MVT-MIXING-10-25-2016.pdf, MVT Gas Mixing
System Operators Manual Appendix.pdf, and MVT Gas Mixing System
Operators Manual.pdf describe the system function and operation.
This system will be required to be fully operational prior to 30
Sept 2017.<br>
<br>
The very basic P&I diagram, MVT-MIXING-10-25-2016.pdf, shows
all the planned system components in 96B. The gas flows from 96b
to the hall in 2 pre-existing 1/2" OD SS lines, ~ 300" in length.
These lines end ~ 1/2 point of the South side of the space frame.
From there, a 1/4" OD copper lines will connect to the MVT and FT
gas distribution boxes, which distribute the gas to the individual
detector locations. <b>There are unknown components contained in
the FT and MVT gas distribution boxes that this mixing system
supplies. </b>This contains the Saclay gas distribution piping,
flow control, and of course the detector. The DA must have the
details of what will be used. The DA requires all component
information to make his assessment. <br>
<br>
Nothing has been purchased for this system, no money has been
made available. Certain items tend to have longer lead times than
others. MKS mass flow controllers and pressure transducers may
require up to 4-6 weeks to arrive. Time must be allocated for
pressure system evaluation, pressure test planning, OSP writing
process, leak checking, and pressure testing. The system should be
completely assembled no later than 30 Aug in order for testing to
be completed by 30 Sept. All components should be in hand by 15
July.<br>
<br>
The critical path includes the following;<br>
•Purchase Components<br>
•Fabricate and Install Gas Shed Valve Panel<br>
•Fabricate and Install scales and regulators for the C4H10 and CF4
Cylinders<br>
•Fabricate and Install Controls Chassis and Cables<br>
•Run tubing in Gas Shed to Connect Valve Panel to Temperature
Controlled lines to Hall B<br>
•Run tubing in Hall B to Connect Temperature Controlled lines to
the MVT and FT Gas Panels<br>
•Develop cRio Controls<br>
•Test cRio Controls<br>
•Test with Saclay and FT Gas Distribution Systems<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 4/26/2017 9:18 AM, Amrit
Yegneswaran wrote:<br>
</div>
<blockquote type="cite"
cite="mid:608359539.1369579.1493212734231.JavaMail.zimbra@jlab.org">
<div style="font-family: tahoma,new york,times,serif; font-size:
14pt; color: #009900">
<div>so marc,<br>
</div>
<div>you are implying that <em>all needed components must be
in hand by 6/15 to be ready for the 10/17 run.</em><br
data-mce-bogus="1">
</div>
<div>so, guessing that the lead time to procure typical
(usual, common, and reasonable) components is about 2 weeks,
the DA should finish his initial analysis by 5/31.<br
data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div>DA initial analysis must finish by <strong><span
data-mce-style="color: #ff0000;" style="color: rgb(255,
0, 0);">5/31.</span></strong><br data-mce-bogus="1">
</div>
<div>procure components <strong><span data-mce-style="color:
#ff0000;" style="color: rgb(255, 0, 0);">6/1---6/15</span></strong><br
data-mce-bogus="1">
</div>
<div>fabricate, install and test <strong><span
data-mce-style="color: #ff0000;" style="color: rgb(255,
0, 0);">6/16-- 10/15</span></strong><br
data-mce-bogus="1">
</div>
<div><strong><span data-mce-style="color: #ff0000;"
style="color: rgb(255, 0, 0);"><br data-mce-bogus="1">
</span></strong></div>
<div><span data-mce-style="color: #000000;" style="color:
rgb(0, 0, 0);">could george and you please improve upon
the time line, and e-mail the groups.</span></div>
<div><span data-mce-style="color: #000000;" style="color:
rgb(0, 0, 0);">amrit </span></div>
<div><span data-mce-style="color: #ff0000;" style="color:
rgb(255, 0, 0);"><br data-mce-bogus="1">
</span></div>
<div><span data-mce-style="color: #000000;" style="color:
rgb(0, 0, 0);"><br data-mce-bogus="1">
</span></div>
<div><br>
</div>
<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" moz-do-not-send="true"><mcmullen@jlab.org></a><br>
<b>To: </b><a class="moz-txt-link-abbreviated"
href="mailto:dsg-mvt@jlab.org" moz-do-not-send="true">dsg-mvt@jlab.org</a>,
<a class="moz-txt-link-abbreviated"
href="mailto:dsg-ft@jlab.org" moz-do-not-send="true">dsg-ft@jlab.org</a>,
"Volker Burkert" <a class="moz-txt-link-rfc2396E"
href="mailto:burkert@jlab.org" moz-do-not-send="true"><burkert@jlab.org></a>,
"Bob Miller" <a class="moz-txt-link-rfc2396E"
href="mailto:rmiller@jlab.org" moz-do-not-send="true"><rmiller@jlab.org></a>,
"Mac Mestayer" <a class="moz-txt-link-rfc2396E"
href="mailto:mestayer@jlab.org" moz-do-not-send="true"><mestayer@jlab.org></a>,
"Maxime Defurne" <a class="moz-txt-link-rfc2396E"
href="mailto:mdefurne@jlab.org" moz-do-not-send="true"><mdefurne@jlab.org></a><br>
<b>Cc: </b>"Patrizia Rossi" <a
class="moz-txt-link-rfc2396E" href="mailto:rossi@jlab.org"
moz-do-not-send="true"><rossi@jlab.org></a><br>
<b>Sent: </b>Wednesday, April 26, 2017 9:02:21 AM<br>
<b>Subject: </b>[Dsg-mvt] Emailing - Requirements to
complete gas service for the MVT to CLAS12.pdf<br>
</div>
<div><br>
</div>
<div data-marker="__QUOTED_TEXT__">Good Morning,<br>
<br>
Attached are the requirements to complete the gas service
for the MVT to <br>
operate in Hall B. Additionally, preliminary cost estimates
for the gas <br>
system and controls have been attached.<br>
<br>
Regards,<br>
<br>
<br>
-- <br>
Marc McMullen<br>
Detector Support Group<br>
757-269-7738<br>
<br>
<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7115
(cell) 757-876-0480
(email) <a class="moz-txt-link-abbreviated" href="mailto:jacobsg@jlab.org" moz-do-not-send="true">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/%7Ejacobsg" moz-do-not-send="true">https://userweb.jlab.org/~jacobsg</a></pre>
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<br>
<pre class="moz-signature" cols="72">--
Marc McMullen
Detector Support Group
757-269-7738</pre>
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