Sealed tube comparisons of the compatibility of desiccants with refrigerants and lubricants
- Spauschus Associates, Inc., Stockbridge, GA (United States)
Continuing environmental concerns mandate replacement of CFC`s with alternate refrigeration fluids. At this time relatively little testing has been reported in the literature for compatibility of desiccants in these new working fluids. Work has begun, and some results are reported, on a project that will determine the compatibility of virtually all of the currently used desiccant types -- both bead and molded core, with thirteen refrigerant/lubricant combinations. The desiccants are tested by exposure to refrigerant and lubricant in sealed, glass tubes in accordance with ASHRAE/ANSI Standard 97-1989. After aging the lubricants are evaluated for change in color and acid formation. The refrigerants are analyzed for charges by gas chromatography and halide ion formation using ion chromatography. The desiccants are evaluated for changes in crush strength, and for retention of acids and halide ions. Metal catalysts, also present in the sealed tubes, are visually examined for corrosion, copper plating, and appearance change. Results are reported for 4{Angstrom} and 3{Angstrom} molecular sieve desiccants aged in R-12, R-134a and R-32.
- Research Organization:
- Air-Conditioning and Refrigeration Technology Inst., Inc., Arlington, VA (United States); Spauschus Associates, Inc., Stockbridge, GA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-91CE23810
- OSTI ID:
- 10143136
- Report Number(s):
- DOE/CE/23810-40B; CONF-9405121-2; ON: DE94010002; BR: EC0502000/EC2302000
- Resource Relation:
- Conference: 45. annual international appliance technical conference,Madison, WI (United States),9-11 May 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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Sealed tube comparisons of the compatibility of desiccants with refrigerants and lubricants. Quarterly technical progress report, 1 August 1993--31 December 1993
Sealed tube comparisons of the compatibility of desiccants with refrigerants and lubricants. Quarterly technical progress report, January 1994--March 1994