Fire-accident analysis code (FIRAC) verification

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Description

The FIRAC computer code predicts fire-induced transients in nuclear fuel cycle facility ventilation systems. FIRAC calculates simultaneously the gas-dynamic, material transport, and heat transport transients that occur in any arbitrarily connected network system subjected to a fire. The network system may include ventilation components such as filters, dampers, ducts, and blowers. These components are connected to rooms and corridors to complete the network for moving air through the facility. An experimental ventilation system has been constructed to verify FIRAC and other accident analysis codes. The design emphasizes network system characteristics and includes multiple chambers, ducts, blowers, dampers, and filters. A ... continued below

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Pages: 11

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Nichols, B.D.; Gregory, W.S.; Fenton, D.L. & Smith, P.R. January 1, 1986.

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Description

The FIRAC computer code predicts fire-induced transients in nuclear fuel cycle facility ventilation systems. FIRAC calculates simultaneously the gas-dynamic, material transport, and heat transport transients that occur in any arbitrarily connected network system subjected to a fire. The network system may include ventilation components such as filters, dampers, ducts, and blowers. These components are connected to rooms and corridors to complete the network for moving air through the facility. An experimental ventilation system has been constructed to verify FIRAC and other accident analysis codes. The design emphasizes network system characteristics and includes multiple chambers, ducts, blowers, dampers, and filters. A larger industrial heater and a commercial dust feeder are used to inject thermal energy and aerosol mass. The facility is instrumented to measure volumetric flow rate, temperature, pressure, and aerosol concentration throughout the system. Aerosol release rates and mass accumulation on filters also are measured. We have performed a series of experiments in which a known rate of thermal energy is injected into the system. We then simulated this experiment with the FIRAC code. This paper compares and discusses the gas-dynamic and heat transport data obtained from the ventilation system experiments with those predicted by the FIRAC code. The numerically predicted data generally are within 10% of the experimental data.

Physical Description

Pages: 11

Notes

NTIS, PC A02/MF A01; 1.

Source

  • 19. DOE/NRC nuclear air cleaning conference, Seattle, WA, USA, 17 Aug 1986

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  • Other: DE86015349
  • Report No.: LA-UR-86-2680
  • Report No.: CONF-860820-7
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5240094
  • Archival Resource Key: ark:/67531/metadc1067018

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1986

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • June 4, 2018, 1:38 p.m.

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Nichols, B.D.; Gregory, W.S.; Fenton, D.L. & Smith, P.R. Fire-accident analysis code (FIRAC) verification, article, January 1, 1986; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1067018/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.