- Author
- Gaskill, J. R. | Murrow, J. L.
- Title
- Fire Protection of HEPA Filters by Using Water Sprays.
- Coporate
- Lawrence Livermore National Lab., CA
- Sponsor
- Atomic Energy Commission, Washington, DC
- Report
- UCRL-73800
- Book or Conf
- USAEC Air Cleaning Congerence, 12th. August 28-31, 1972, Oak Ridge, TN, 1-22 p., 1972
- Keywords
- filters | fire protection | water sprays | experiments
- Identifiers
- exhaust-ventilation system; metal screen scrubbers; demisters; hot fire gases
- Abstract
- In experiments with a full-size section of an exhaust-ventilation system at the Lawrence Livermore Laboratory, fine water sprays used in conjunction with metal screen scrubbers and demisters successfully protected HEPA filters against hot fire gases. When a single HEPA filter was used, at an air-flow rate of 1000 cfm, temperature was reduced from 1500 deg F to ~300 deg F, with 4 gpm of water distributed through three nozzles. Variations in the heat and flow parameters, and in the spray and scrubber systems used, are described in this paper, and results are given.