Difference between revisions of "GlueX Target Design Mtg, May 24, 2013"
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* Discussed Gas system status, vacuum system, cell and scattering chamber and tasks to be done. The following are the results of the discussion; | * Discussed Gas system status, vacuum system, cell and scattering chamber and tasks to be done. The following are the results of the discussion; | ||
** Procurement of gas system components started. Still need piping and relief valves. $40-50K, some components have arrived | ** Procurement of gas system components started. Still need piping and relief valves. $40-50K, some components have arrived | ||
− | ** | + | ** Sizing tank based on min liquid volume possible |
− | ** May put valve on tank to purge to vent system | + | ** May put valve on tank to purge to vent system. Stack must be 5' above roof. Jim to work with facilities |
− | + | ** Target to have 1 fill and 1 return line. "kink in return to reduce liquid volume | |
− | ** | + | ** Build production configuration to test system with horizontal target |
− | ** | + | |
** Plan to use 20' x 1.5 inch flex line to allow target to be moved in and out of the detector | ** Plan to use 20' x 1.5 inch flex line to allow target to be moved in and out of the detector | ||
− | ** lakeshore boxes from target group are in | + | ** lakeshore boxes from target group are in. PLC controls ordered and some have arrived. Dave to order remaining controls/cables. |
** Looks like a heat exchanger using LCW/Chilled water most economical for refrig. compressor. Jim working this | ** Looks like a heat exchanger using LCW/Chilled water most economical for refrig. compressor. Jim working this | ||
− | ** Jim to get with Chris and James on scattering chamber design (some ideas in work) (<15Psig). | + | ** Jim to get with Chris and James on scattering chamber design (some ideas in work) (<15Psig). Jim has envelope |
** Tim ordered vacuum system pump cube (Pfeifer turbo cube). Still need to order gauging. | ** Tim ordered vacuum system pump cube (Pfeifer turbo cube). Still need to order gauging. | ||
** Chris sent out list of all items needed for monitoring/controlling from PLC system | ** Chris sent out list of all items needed for monitoring/controlling from PLC system | ||
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** Jim to develop H2 vent details | ** Jim to develop H2 vent details | ||
** Insertion cart can be extended upstream 18-24" to get panel and turbo in lower mag field. Jim to finalize design with target group. | ** Insertion cart can be extended upstream 18-24" to get panel and turbo in lower mag field. Jim to finalize design with target group. | ||
− | ** One target cell is made, will need to make two more | + | ** One target cell is made, will need to make two more. Joint in cell to be at 12 oclock. Also, make an aluminum base with 2 line design to test. |
− | ** | + | ** Jim to work with Josh/James on the design of the shield and plumbing |
** Chris working on PLC algorithm and "empty target/fill target" procedure. | ** Chris working on PLC algorithm and "empty target/fill target" procedure. | ||
** FMEA needed. Cannot rely on PLC for personnel safety. Use safety pressure switches to turn off/close vacuum valves, power to compressor and heater. | ** FMEA needed. Cannot rely on PLC for personnel safety. Use safety pressure switches to turn off/close vacuum valves, power to compressor and heater. | ||
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** need heater on supply line to boil off liquid. It took 3 days to boil off neon from cell. | ** need heater on supply line to boil off liquid. It took 3 days to boil off neon from cell. | ||
** If heaters used, need controls | ** If heaters used, need controls | ||
− | ** Plan on internal review this | + | ** Plan on internal review this July |
− | + | ||
** Question came up if UPS power is required for any components. Maybe not if relays shut off compressor if power goes out. | ** Question came up if UPS power is required for any components. Maybe not if relays shut off compressor if power goes out. | ||
** need to review interlocks on P&I | ** need to review interlocks on P&I | ||
− | ** | + | ** Dave to update SOW |
Revision as of 14:45, 23 May 2013
Present: Dave Meekins, Jim Fochtman, Mark Ito, Chris Keith, Tim Whitlatch,
Agenda
- P&I Diagram Media:Target P&I.pdf
- Dave's SOW Media:Target new SOW.pdf
- Dave's Calcs Media:Target calcs1.pdf Media:Target calcs2.pdf
- Dave's FMEA Media:Target latest FMEA.pdf
- Review notes from last week
Notes from last week
- Discussed Gas system status, vacuum system, cell and scattering chamber and tasks to be done. The following are the results of the discussion;
- Procurement of gas system components started. Still need piping and relief valves. $40-50K, some components have arrived
- Sizing tank based on min liquid volume possible
- May put valve on tank to purge to vent system. Stack must be 5' above roof. Jim to work with facilities
- Target to have 1 fill and 1 return line. "kink in return to reduce liquid volume
- Build production configuration to test system with horizontal target
- Plan to use 20' x 1.5 inch flex line to allow target to be moved in and out of the detector
- lakeshore boxes from target group are in. PLC controls ordered and some have arrived. Dave to order remaining controls/cables.
- Looks like a heat exchanger using LCW/Chilled water most economical for refrig. compressor. Jim working this
- Jim to get with Chris and James on scattering chamber design (some ideas in work) (<15Psig). Jim has envelope
- Tim ordered vacuum system pump cube (Pfeifer turbo cube). Still need to order gauging.
- Chris sent out list of all items needed for monitoring/controlling from PLC system
- Hall D people to discuss what needs to be shut off in hall when target vacuum goes south
- Jim to develop H2 vent details
- Insertion cart can be extended upstream 18-24" to get panel and turbo in lower mag field. Jim to finalize design with target group.
- One target cell is made, will need to make two more. Joint in cell to be at 12 oclock. Also, make an aluminum base with 2 line design to test.
- Jim to work with Josh/James on the design of the shield and plumbing
- Chris working on PLC algorithm and "empty target/fill target" procedure.
- FMEA needed. Cannot rely on PLC for personnel safety. Use safety pressure switches to turn off/close vacuum valves, power to compressor and heater.
- Pressurization to failure has been done on individual components. Dave does not believe we need to do the entire system to failure. 2nd DA agreement needed.
- Heater on return line had little effect on enhancing convection - not needed
- need heater on supply line to boil off liquid. It took 3 days to boil off neon from cell.
- If heaters used, need controls
- Plan on internal review this July
- Question came up if UPS power is required for any components. Maybe not if relays shut off compressor if power goes out.
- need to review interlocks on P&I
- Dave to update SOW