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Characterization of Sodium Spray Aerosols

Abstract

The consequences of pool and spray fires require evaluation in the safety analysis of liquid metal-cooled fast breeder reactors. Sodium spray fires are characterized by high temperature and pressure, produced during the rapid combustion of sodium in air. Following the initial energy release, some fraction of the reaction products are available as aerosols which follow the normal laws of agglomeration, growth, settling, and plating. An experimental study is underway at Atomics International to study the characteristics of high concentration sprays of liquid sodium in reduced oxygen atmospheres and in air. The experiments are conducted in a 31.5 ft{sup 3} (2 ft diam. by 10 ft high) vessel, certified for a pressure of 100 lb/in{sup 2} (gauge). The spray injection apparatus consists of a heated sodium supply pot and a spray nozzle through which liquid sodium is driven by nitrogen pressure. Spray rate and droplet size can be varied by the injection velocity (nozzle size, nitrogen pressure, and sodium temperature). Aerosols produced in 0, 4, and 10 vol. % oxygen environments have been studied. The concentration and particle size distribution of the material remaining in the air after the spray injection and reaction period are measured. Fallout rates are found to  More>>
Authors:
Nelson, C. T.; Koontz, R. L.; Silberberg, M. [1] 
  1. Atomics International, North American Rockwell Corporation, Canoga Park, CA (United States)
Publication Date:
Dec 15, 1968
Product Type:
Conference
Report Number:
IAEA-SM-110/17
Resource Relation:
Conference: Symposium on Operating and Developmental Experience in the Treatment of Airborne Radioactive Wastes, New York, NY (United States), 26-30 Aug 1968; Other Information: 6 refs., 3 figs., 1 tabs.; Related Information: In: Treatment of Airborne Radioactive Wastes. Proceedings of a Symposium on Operating and Developmental Experience in the Treatment of Airborne Radioactive Wastes| 835 p.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 36 MATERIALS SCIENCE; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; AEROSOLS; AIR; DROPLETS; FBR TYPE REACTORS; INJECTION; LIQUID METAL COOLED REACTORS; LIQUID METALS; NITROGEN; PARTICLE SIZE; SAFETY ANALYSIS; SODIUM; SPRAYS
OSTI ID:
22099249
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United States Atomic Energy Commission, Germantown, MD (United States); Harvard Univ., Cambridge, MA (United States)
Country of Origin:
IAEA
Language:
English
Contract Number:
Contract AT(04-3)-701
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M0356057067
Submitting Site:
INIS
Size:
page(s) 45-61
Announcement Date:
Jun 04, 2013

Citation Formats

Nelson, C. T., Koontz, R. L., and Silberberg, M. Characterization of Sodium Spray Aerosols. IAEA: N. p., 1968. Web.
Nelson, C. T., Koontz, R. L., & Silberberg, M. Characterization of Sodium Spray Aerosols. IAEA.
Nelson, C. T., Koontz, R. L., and Silberberg, M. 1968. "Characterization of Sodium Spray Aerosols." IAEA.
@misc{etde_22099249,
title = {Characterization of Sodium Spray Aerosols}
author = {Nelson, C. T., Koontz, R. L., and Silberberg, M.}
abstractNote = {The consequences of pool and spray fires require evaluation in the safety analysis of liquid metal-cooled fast breeder reactors. Sodium spray fires are characterized by high temperature and pressure, produced during the rapid combustion of sodium in air. Following the initial energy release, some fraction of the reaction products are available as aerosols which follow the normal laws of agglomeration, growth, settling, and plating. An experimental study is underway at Atomics International to study the characteristics of high concentration sprays of liquid sodium in reduced oxygen atmospheres and in air. The experiments are conducted in a 31.5 ft{sup 3} (2 ft diam. by 10 ft high) vessel, certified for a pressure of 100 lb/in{sup 2} (gauge). The spray injection apparatus consists of a heated sodium supply pot and a spray nozzle through which liquid sodium is driven by nitrogen pressure. Spray rate and droplet size can be varied by the injection velocity (nozzle size, nitrogen pressure, and sodium temperature). Aerosols produced in 0, 4, and 10 vol. % oxygen environments have been studied. The concentration and particle size distribution of the material remaining in the air after the spray injection and reaction period are measured. Fallout rates are found to be proportional to the concentration of aerosol which remains airborne following the spray period. (author)}
place = {IAEA}
year = {1968}
month = {Dec}
}