Control and operation cost optimization of the HISS cryogenic system
The Heavy Ion Spectrometer System (HISS) relies upon superconducting coils of cryostable design to provide a maximum particle bending field of 3 tesla. A previous paper describes the cryogenic facility including helium refrigeration and gas management. This paper discusses a control strategy which has allowed full time unattended operation, along with significant nitrogen and power cost reductions. Reduction of liquid nitrogen consumption has been accomplished by making use of the sensible heat available in the cold exhaust gas. Measured nitrogen throughput agrees with calculations for sensible heat utilization of zero to 70%. Calculated consumption saving over this range is 40 liters per hour for conductive losses to the supports only. The measured throughput differential for the total system is higher.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5829491
- Report Number(s):
- LBL-16505; CONF-830841-20; ON: DE83017741
- Resource Relation:
- Conference: Cryogenic engineering conference and international cryogenic materials conference, Colorado Springs, CO, USA, 15 Aug 1983; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYOGENICS
CONTROL SYSTEMS
SUPERCONDUCTING MAGNETS
COOLING SYSTEMS
COST
EFFICIENCY
EXPERIMENTAL DATA
HEAVY ION ACCELERATORS
HEAVY ION SPECTROMETERS
ACCELERATORS
DATA
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ENERGY SYSTEMS
EQUIPMENT
INFORMATION
MAGNETS
MEASURING INSTRUMENTS
NUMERICAL DATA
SPECTROMETERS
SUPERCONDUCTING DEVICES
430303* - Particle Accelerators- Experimental Facilities & Equipment
420201 - Engineering- Cryogenic Equipment & Devices