Compounds produced by motor burnouts of refrigeration systems
- Lawrence Livermore National Lab., CA (United States)
The phase-out of chlorofluorocarbons has necessitated the introduction of alternate refrigerants. R22 (CF{sub 2}ClH), R134a (CF{sub 3}CH{sub 2}F), and R507 (50/50 CHF{sub 2}CF{sub 3}/CF{sub 3}CH{sub 3}) are newer fluids which are used in cooling systems. Recently, concern over the possible formation of toxic compounds during electrical arcing through these fluids has prompted the authors to identify their electrical breakdown products by electron ionization GC/MS. For example, it is known that perfluoroisobutylene (PFIB), which has an threshold limit value of 10 ppb (set by the American Conference of Government Industrial Hygienists), is produced from the thermal and electrical breakdown of some refrigerants. The authors have used specially designed test cells, equipped with electrodes, to simulate the electrical breakdown of R22, R134a, and R507 in refrigeration systems.
- OSTI ID:
- 210605
- Report Number(s):
- CONF-9505261-; TRN: 96:001157-0044
- Resource Relation:
- Conference: 43. American Society of Mass Spectrometry (ASMS) conference on mass spectrometry and allied topics, Atlanta, GA (United States), 21-26 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the 43rd ASMS conference on mass spectrometry and allied topics; PB: 1411 p.
- Country of Publication:
- United States
- Language:
- English
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