primary beamline low conductivity water (lcw) preliminary
TRANSCRIPT
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Long-Baseline Neutrino FacilityLBNF
Print Package Review & Major Electrical Requirements
131.01.03.03.02.04.02 Primary Water LCW System
131.01.03.03.02.04.03 Electrical Bus
Noah Curfman
October 31, 2019
Primary Beamline
Low Conductivity Water (LCW)
Preliminary Design Review
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LBNF-05 Magnet LCW Overall Flow Schematic
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LBNF-05 Magnet LCW Overall Flow Schematic
Noah Curfman | Primary Beamline LCW Preliminary Design Review3
Remotely operated 3-way valve Primary LCW pumps
Heat Exchanger Bypass Pump Diagram
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LBNF-05 Magnet LCW Overall Flow Schematic
10.31.19 Noah Curfman | Primary Beamline LCW Preliminary Design Review4
Standard DI/Filtration loop
Remotely operated electric valve
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LBNF – 5 Service Building LCW Piping Arrangement
Noah Curfman | Primary Beamline LCW Preliminary Design Review5 10.31.19
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• Bus will run directly
above power supplies
• Indicated crossover will
not occur in practice
LBNF – 5 Service Building LCW Piping Arrangement
Noah Curfman | Primary Beamline LCW Preliminary Design Review6 10.31.19
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LBNF – 5 Service Building LCW Piping Arrangement
Noah Curfman | Primary Beamline LCW Preliminary Design Review7
• Previously specified aluminum
monocoque shielding for bus
no longer suitableMore complex bus
routing incompatible with monocoque shielding
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Reverse return reduces dP variances between magnets
LBNF Primary Beamline LCW & Bus Flow Schematic
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LBNF Primary Beamline LCW & Bus Flow Schematic
10.31.19 Noah Curfman | Primary Beamline LCW Preliminary Design Review9
Standard dipole/quad/dipole cell
2”x2” to 1”x4” bus connector without LCW pass-thru
Recirculation jumper
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LBNF Primary Beamline LCW & Bus Flow Schematic
Noah Curfman | Primary Beamline LCW Preliminary Design Review10
Air separators at tunnel crestRemotely operated electric valves
LBNF LCW Fill System Beamline Tunnel Crest
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LBNF – 5 Service Building Power Supply P&ID
Noah Curfman | Primary Beamline LCW Preliminary Design Review11 10.31.19
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LBNF – 5 Service Building Power Supply P&ID
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• One flow control valve per
power supply
• Bus jumpers between A/B
power supplies are external
Griswold Flow Control Valves
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LBNF – 20 Target Hall Power Supply P&ID
Noah Curfman | Primary Beamline LCW Preliminary Design Review13 10.31.19
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Instrumentation
• Designed based on MI and similar LCW Systems
• Detailed estimates and info found in DUNE DocDB Doc #9955
• Specific component selection delayed to take advantage of
emerging technologies
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System Redundancy
• Two 150HP Pumps, one running, one hot spare
• Both pumps VFD controlled
• All major components may be valved out for replacement
• Filters
• DI bottles
• Power supplies
• Instrumentation
• Magnet cells
• Recirculation jumpers on all supply/returns
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Electrical Requirements
• 2 primary circulation pumps with VFDs
• 3 electrically actuated valves
- 1 valve in pump room
- 2 valves in beam enclosure
• 1 three-way valve to control HX flow
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Power RequirementsQuantity Rated Power Voltage Input Phase I @ Full Load I @ Stall
Primary Pumps 2 150 HP 480 V Three 177 A 969.4 A
Recirculation Pump 1 1/2 HP 480 V Three 2.2 A Not Listed
Primary Pump VFDs 2 150 HP 480 V Three 180A N/A
3 Way Valve Actuator 1 1/12 HP 480 V Three 0.32 A 1.16 A
Electrically Operated Valves 3 0.5 HP 120 V Single Not Listed 3A (est.)
Control Panel 1 N/A 110V Single 15A N/A
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LBNF Vehicle Access Tunnel LCW Piping & Bus Layout
Noah Curfman | Primary Beamline LCW Preliminary Design Review17 10.31.19
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LBNF Beamline LCW Pipe & Bus Routing
Noah Curfman | Primary Beamline LCW Preliminary Design Review18
• Provides maximum room for cable trays in alcove
• 2” LCW Downstream return continues into alcove for Q211
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Full Layout Envelope Showing Bus LCW Cable Trays and Headers
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Full envelope layout showing all possible components along
beamline wall
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Full Layout Envelope Showing Bus LCW Cable Trays and Headers
Noah Curfman | Primary Beamline LCW Preliminary Design Review20
Full envelope layout showing all possible components along
beamline wall
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System Design Requirements
• Meet previously described operational goals
• Require minimal unscheduled interventions
• Meet established lab standards for flow and capacity
• Operate over a range of elevations determined by CF
• Use pond water for cooling and MI LCW for fill
• Conform to ASME B31.3 and FESHM 5031.1
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Fluid Low Conductivity Water
Resistivity 9MΩ·cm or better
Nominal Temperature 95°F
Radioactivity < 1900 pCi/ml
MAWP 200 psig
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