# Presentation: 268658

## Infrastructure Review - W.B.S. 1.1.7  Water Systems

- Water Systems
- Upstream LCW for Extraction and Pre-Target Magnets & P.S.
- Downstream LCW for cooling the MINOS Near Detector Coil, Power supply and Electronics Racks.
- Downstream RAW for cooling the Absorber .
- Decay Pipe Cooling for cooling the decay pipe.
- Horn RAW (_R_adio_A_ctive _W_ater), for cooling the Horns.
- Target RAW for cooling the target, horn protection baffles.
- Vacuum Systems
- Extraction and Primary Beam, Hadron Decay Pipe
- Gas Systems
- Primary Beam Instrumentation
- Secondary Beam Instrumentation
- WILL HAVE A SEPARATE REVIEW OF THE RAW SYSTEMS ON 8/1/01

## Infrastructure Review - W.B.S. 1.1.7  Upstream LCW (MI-62) System

- U.S. LCW System has LCW pumps, Heat Exchanger located in MI-62.
- Heat Exchanger sized for 1200 kW, actual heat load is approximately 750kW.  HX is a shell and tube unit and is already in MI-62.  Strand needs to be built, stands drawings underway.
- 550 gpm pump, 440 feet TDH, 100 HP.  Pump spec’d not purchased.  Will include a hot stand-by unit.
- Provides LCW to all magnets in extraction and pre-target areas, Power supplies in MI-62, TSB, Underground Mechanical Space (horn P.S.)
- ~ 4630 gallons of LCW in the piping, more in exp. tank.
- Heat rejected to MI pond G via pumps in PV-9.  Existing pumps are not perfectly fit to our application (too much head with two pump operation/too little flow for one pump operation).

## Infrastructure Review - W.B.S. 1.1.7  Upstream LCW (MI-62) System

- Status of the Upstream LCW System:
- Piping already installed in MI up to the shield wall.
- Piping will need to be extended in MI after the shield wall is removed.
- MI-62 piping laid out as far as possible w/o pump and strainer selections finalized.
- Piping Installation in the carrier tunnel, pre-target, shaft, underground mechanical area, and NuMI Target Service Building (MI-65?) to be in the Outfitting and Service Building Contract
- Instrumentation List Complete
- Best scheme to read in to/out of ACNET not yet settled.
- Will use one PID loop to control temperature
- Will have a few pump interlocks

## Infrastructure Review - W.B.S. 1.1.7  Downstream LCW (MINOS) System

- D.S. LCW System has LCW pumps, Heat Exchanger located in the MINOS Near Detector Hall.
- Heat Exchanger sized for 200 kW, actual heat load is approximately 110kW.  Will use a welded plate and frame HX.
- 160 gpm pump, 35 feet TDH, 3 HP.  Pump not spec not yet written.  Will include a hot stand-by unit.  Will have a booster pump for the power supply just like the one at NMS currently.
- Provides LCW to the near detector magnet coil, power supply,  and 27 water cooled electronics racks.
- ~ 150 gallons of LCW in the piping, more in expansion tank, rack, magnet coil.
- Heat rejected to MINOS chilled water (same water used for de-humidification in the underground spaces).

## Infrastructure Review - W.B.S. 1.1.7  Downstream LCW (MINOS) System

- Status of Downstream LCW (MINOS) System:
- Piping layout drawings completed.
- Piping to be installed in the Service Building and Outfitting Contract.
- Skid Design not started.
- Instrumentation List Complete
- Best scheme to read in to/out of ACNET not yet settled.
- Will use one PID loop to control temperature
- Will have a few pump interlocks

## Infrastructure Review - W.B.S. 1.1.7  Absorber Cooling RAW System

- Absorber RAW System has pumps, heat exchanger located in the absorber access tunnel.  Intermediate loop has the pumps, heat exchangers and filters located in the MINOS service building.
- Heat Exchangers sized for 200 kW, actual heat load is approximately 130kW.  Will use a welded plate and frame HX between RAW and intermediate loop, a S&T between intermediate loop and the pond water.
- Both RAW and Intermediate loop pumps are 60 gpm pumps, 65 feet TDH, 3 HP.  Pump not spec not yet written.  Will include a hot stand-by unit for both RAW and Intermediate loop pumps.
- Provides cooling to remove the beam energy deposited in the absorber along the vacuum decay pipe.
- ~ 90 gallons of water in the absorber and piping, more in expansion tank, heat exchangers and manifolds.
- Heat rejected to MINOS pond water.
- Activation of water not yet quantified.

## Infrastructure Review - W.B.S. 1.1.7  Absorber Cooling RAW System

- Status of the Absorber Cooling RAW System:
- Piping layout drawings have not been started.
- Piping to be installed in the Service Building and Outfitting Contract.
- Skid Design not started for either the RAW or the Intermediate loop skid.
- Instrumentation List Complete
- Best scheme to read in to/out of ACNET not yet settled.
- Will use one PID loop to control temperature for the intermediate loop, no direct temperature control on the RAW loop.
- Will have a few pump interlocks

## Infrastructure Review - W.B.S. 1.1.7  Decay Pipe Cooling RAW System

- Decay Pipe RAW System has pumps, heat exchanger located in the absorber access tunnel @ d.s. end and heat exchanger, filter, DI bottle in the underground mechanical support room at u.s. end.
- Heat Exchanger sized for 200 kW, actual heat load is approximately 150kW.  Will use a welded plate and frame HX.
- 50 gpm pump, 325 feet TDH, 7.5 HP.  Pump not spec not yet written.  Will include a hot stand-by unit.
- Provides cooling to remove the beam energy deposited in the shielding along the vacuum decay pipe.
- ~ 1250 gallons of water in the piping, more in expansion tank, heat exchangers.
- Heat rejected to MINOS chilled water (same water used for de-humidification in the underground spaces) at downstream end and to the intermediate loop of CUB water at the upstream end (also used for de-humidification in the underground spaces).
- Activation of water is not severe.  Should not have to change this water during the life of the experiment.

## Infrastructure Review - W.B.S. 1.1.7  Decay Pipe Cooling RAW System

- Status of the Decay Pipe Cooling System:
- Piping layout drawings started in PPD.
- Have begun to change the layout to move the connections between individual tubes and the manifold to an accessible area.
- Piping to be installed in the Service Building and Outfitting Contract.
- Skid Design not started.
- Equipment Purchase Requisitions and specifications not prepared.
- Changing from 1” nominal copper lines to 3⁄4” nominal polyethylene coated copper lines to prevent galvanic corrosion between the copper and the low carbon steel decay pipe.
- The decay pipe is less noble, therefore it would corrode, possibly causing a vacuum leak.
- Instrumentation List Complete
- Best scheme to read in to/out of ACNET not yet settled.
- No temperature control
- Will have a few pump interlocks

## Infrastructure Review - W.B.S. 1.1.7  Horn 1 Cooling RAW System

- Horn 1 RAW System has pumps, heat exchanger, filter, DI bottle in the underground mechanical support room at u.s. end.
- Heat Exchanger sized for 150 kW, actual heat load is approximately 30kW.  Will use a welded plate and frame HX.
- 115 gpm pump, 61 feet TDH, 5 HP.  Pump not spec not yet written.  Will include a hot stand-by unit.
- Provides cooling to remove the beam energy and I2R deposited in horn 1.
- ~150 gallons of water in the piping, more in expansion tank, heat exchangers.
- Heat rejected to the intermediate loop of CUB water at the upstream end (also used for de-humidification in the underground spaces).
- Activation of water _is_ severe.  Will change annually but will also exceed the recommended concentrations.

## Infrastructure Review - W.B.S. 1.1.7  Horn 1 Cooling RAW System

- Status of Horn 1 Cooling Raw System:
- Piping layout drawings 90% completed.
- Piping to be installed in the Service Building and Outfitting Contract.
- Skid Design has just been started.
- Instrumentation List Complete
- Best scheme to read in to/out of ACNET not yet settled.
- No temperature control is used
- Will have a few pump interlocks

## Infrastructure Review - W.B.S. 1.1.7  Horn 2 Cooling RAW System

- Horn 2 RAW System has pumps, heat exchanger, filter, DI bottle in the underground mechanical support room at u.s. end.
- Heat Exchanger sized for 50 kW, actual heat load is approximately 10kW.  Will use a welded plate and frame HX.
- 115 gpm pump, 61 feet TDH, 5 HP.  Pump not spec not yet written.  Will include a hot stand-by unit.
- Provides cooling to remove the beam energy and I2R deposited in horn 2.
- ~100 gallons of water in the piping, more in expansion tank, heat exchangers.
- Heat rejected to the intermediate loop of CUB water at the upstream end (also used for de-humidification in the underground spaces).
- Activation of water _is_ severe.  Will change annually but will also exceed the recommended concentrations.

## Infrastructure Review - W.B.S. 1.1.7  Horn 2 Cooling RAW System

- Status of Horn 2 Cooling RAW System:
- Piping layout drawings 90%completed.
- Piping to be installed in the Service Building and Outfitting Contract.
- Skid Design has just been started.
- Instrumentation List Complete
- Best scheme to read in to/out of ACNET not yet settled.
- No temperature control is used
- Will have a few pump interlocks

## Infrastructure Review - W.B.S. 1.1.7  Target Cooling RAW System

- Target RAW System has pumps, heat exchanger, filter, DI bottle in the underground mechanical support room at u.s. end.
- Heat Exchanger sized for 20 kW, actual heat load is approximately 10kW.  Will use a welded plate and frame HX.
- 15 gpm pump, 58 feet TDH, 1 HP.  Pump not spec not yet written.  Will include a hot stand-by unit.
- Provides cooling to remove the beam energy and I2R deposited in the target and baffle.
- ~50 gallons of water in the piping, more in expansion tank, heat exchangers.
- Heat rejected to the U.S. LCW system.
- Activation of water is unknown as it has not yet been calculated.

## Infrastructure Review - W.B.S. 1.1.7  Target Cooling RAW System

- Status of the Target and Baffle RAW System:
- Piping layout drawings 90%completed.
- Piping to be installed in the Service Building and Outfitting Contract.
- Skid Design has not started.
- There remains some difference of opinion as to if the beam baffle is, or is not, water cooled.  This has a negligible affect on the cost.
- Instrumentation List Complete
- Best scheme to read in to/out of ACNET not yet settled.
- No temperature control is used
- Will have a few pump interlocks

## Vacuum

- Vacuum in the Primary Beam:
- Designing for a 1 x 10-6 torr level in the instrumentation region of the primary beam transport pipe.  P&ID prepared.
- Generated Instrument Lists for extraction.
- Pre-Target Instrument List not completed
- Parts for Vacuum Instrumentation being purchased.  Custom building of controller chassis for Ion pumps and instrumentation.
- Decay Pipe Vacuum:
- Decay system P&ID prepared.  24 hour pump down calculated
- 48 liters of water is the maximum volume of water in the air in the decay pipe assuming 100% relative humidity at the beginning of the pump down.
- Skid drawings not yet started nor equipment specified.

## Gas Systems

- Gas Systems for:
- Loss monitors for primary beam area (Ar-CO2)
- Secondary beam Monitoring (He-2%H2)
- Status:
- Both system designs remain on hold pending instrumentation development.
- Significant chance that the secondary beam monitoring may choose a technology which does not require gas.