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Mucool cryo-design. Christine Darve Fermilab/Beams Division/ Cryogenic Department 8/12/02. Content. Process and Instrumentation Diagram Gas Shed Experimental Hall Absorber cryostat Design Cryostat Safety requirements HX He/LH2 Pump test Description Preliminary Results.

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Mucool cryo design l.jpg

Mucool cryo-design

Christine Darve

Fermilab/Beams Division/ Cryogenic Department

8/12/02


Content l.jpg

Content

  • Process and Instrumentation Diagram

    • Gas Shed

    • Experimental Hall

    • Absorber cryostat

  • Design

    • Cryostat

    • Safety requirements

    • HX He/LH2

  • Pump test

    • Description

    • Preliminary Results


Process and instrumentation diagram l.jpg

Process and Instrumentation Diagram


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Gas Shed

Equipment:

  • Gas H2 bottle

  • Gas N2 bottle

  • O2 adsorber

  • Vacuum pump

  • Flam. Gas detector

  • ODH detector

  • Pneumatic air supply sys.

    Instrumentation:

  • Flowmeter Transducer

  • Pressure Reg. Valve

  • Safety Valve

  • Manual Valve

  • Excess flow Valve

  • Pneumatic Valve

  • Electrical Valve

  • Check Valve

  • Pressure Indicator

  • Pressure Transducer


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Experimental Hall

Equipment:

  • Roughing Vacuum pump

  • Turbo Molecular pump

  • Gas He Supply/Return

  • Gas N2 Supply/Return

  • Liq. N2 Supply/Return

  • Vaporizer

  • Flam. Gas detector

  • ODH detector

  • Pneumatic air supply sys.

    Instrumentation:

  • Temperature Transducer

  • Pressure Transducer and Indicator

  • Flowmeter Indicator

  • Heater

  • Safety Valve

  • Temperature Controlled Valve

  • Pressure Reg. Valve

  • Manual Valve

  • Pneumatic Valve

  • Electrical Valve

  • Check Valve


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Absorber Vacuum Vessel

Equipment:

  • Absorber

  • He/H2 Heat Exchanger

  • LH2 pump

  • AC motor

  • LH2 buffer

  • Vacuum pump

  • Thermal shield

  • Pneumatic air supply sys.

    Instrumentation:

  • Temperature Transducer

  • Pressure Transducer

  • Pressure Indicator

  • Diff. Pressure Transducer

  • Heater

  • Safety Valve

  • Manual Valve

  • Pneumatic Valve

  • Electrical Valve

  • Check Valve


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LH2 Absorber Cryostat design

  • The Cryostat is defined as the containment vessel.

  • Vacuum volume around the absorber: safety+reduce the heat load to be extracted by the cryoloop.

  • Maximum Allowable Working Pressure =25 psid

5 Tesla lab-G magnet

  • Absorber cryostat design:

  • LH2 absorber in the 5 T Lab-G magnet bore

  • Safety devices for the LH2 cryo-loop

  • Provide LH2 cooling within the admissible pressure drop limit imposed by the pump

  • LH2 circulation provided by pump

  • Heat exchange with the helium to ensure a temperature gradient in the LH2 less than 3 degrees

  • Connect the helium refrigeration

  • Insertion in the Linac Test Area


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LH2 Absorber Cryostat design

LH2 absorber windows and manifold

Shape of the 30 cm and 24 cm windows

for the 2nd containment vessel


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design

The parallel plate is only indicative – The 3 parallel plates and controlled valve will permit to vent outside the experimental hall, and will be located at the end of the relief piping providing a volume equal to 1300 liters (52x25).


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LH2 Absorber Cryostat design

The LH2 supply is not shown. It will be a bayonet connection located here

The parallel plate is only indicative – The 3 parallel plates and controlled valve will permit to vent outside the experimental hall, and will be located at the end of the relief piping providing a volume equal to 1300 liters (52x25).


Lh2 absorber cryostat design12 l.jpg

LH2 Absorber Cryostat design

The LH2 supply is not shown. It will be a bayonet connection located here


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design


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LH2 Absorber Cryostat design


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Pump test - Overview

Water Pump test set-up at E4R

Heater

Impellers

Pump and its housing


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Pump test – Preliminary results

Preliminary conclusion

  • Equivalent mass-flow in both forward and reverse mode

  • No significant influence on pump efficient, for a DT of 22 K


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Conclusions

  • PID: To be finalized after Reviews

    • Internal Review by end August

    • General Review to plan

  • Design:

    • Final Designs after Reviews

    • Final detail drawings by end of November 2002 (or after reviews)

  • Water pump test:

    • More test to validate the results

    • Correlation with LH2

    • Error analysis

    • Correlation with measurement of DT during experiment


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