The Cryogenic Fail-Safe Control System (CRYOFACS): A comprehensive approach to safety in the cryogenic workplace

Technical Report · Mon Mar 01 00:00:00 EST 1993

OSTI ID:10144060

Shrouf, R D; Buller, D L; McCorkendale, T E; Small, D M

A safety system has been designed and constructed to mitigate the asphyxiation and low temperature hazards presented by the distribution and usage of cryogenic liquids in work spaces at Sandia National Laboratories. After identifying common accident scenarios, the CRYOFACS (Cryogenic Fail-Safe Control System) unit was designed, employing microprocessor technology and software that can be easily modified to accommodate varying laboratory requirements. Sensors have been incorporated in the unit for the early detection of accidental releases or overflows of cryogenic liquids. The CRYOFACS design includes control (and shutdown) of the cryogen source upon error detection, and interfaces with existing oxygen monitors, in common use at Sandia Labs, to provide comprehensive protection for both personnel and property.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 10144060
• Report Number(s): SAND-93-0151; ON: DE93011237
• Resource Relation: Other Information: PBD: Mar 1993
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
47 OTHER INSTRUMENTATION
MATERIALS HANDLING EQUIPMENT
DESIGN
CRYOGENIC FLUIDS
MATERIALS HANDLING
CRYOGENICS
SAFETY
LIQUEFIED GASES
HAZARDOUS MATERIALS
CONTROL SYSTEMS
NITROGEN
MONITORS
MONITORING
OXYGEN
DETECTION
ALARM SYSTEMS
420200
440800
FACILITIES, EQUIPMENT, AND TECHNIQUES
MISCELLANEOUS INSTRUMENTATION