Correlations of the rate of removal of coagulating and depositing aerosols for application to nuclear reactor safety problems

Abstract An approach already presented to predict and correlate the aerosol suspended mass concentration for source-reinforced or aging aerosols undergoing coagulation and sedimentation is used here to develop correlations between the rate of aerosol deposition and the instantaneous aerosol suspended mass concentration. The functional forms of the correlations for the various deposition processes of interest in light water reactor safety are determined by numerical solution of the integrodifferential equation of coagulation and deposition. The applicability of the correlations to radiological assessments is then illustrated using several numerical examples relevant to water reactor safety.

[1]  Robert E. Henry,et al.  Thermophoretic Deposition of Particles in Natural Convection Flow From a Vertical Plate , 1985 .

[2]  Correlation of aerosol sedimentation , 1985 .

[3]  James R. Brock,et al.  On the theory of thermal forces acting on aerosol particles , 1962 .

[4]  K. W. Lee,et al.  Change of particle size distribution during Brownian coagulation , 1983 .

[5]  K. K. Murata,et al.  User's manual for CONTAIN 1. 0, a computer code for severe nuclear reactor accident containment analysis , 1985 .

[6]  R. Ahluwalia,et al.  RAFT: A Computer Model for Formation and Transport of Fission Product Aerosols in LWR Primary Systems , 1985 .

[7]  A. K. Postma,et al.  Aerosol behavior during sodium pool fires in a large vessel: CSTF tests AB1 and AB2 , 1979 .

[8]  W. E. Ranz,et al.  Impaction of Dust and Smoke Particles on Surface and Body Collectors. , 1952 .

[9]  A. K. Postma,et al.  Results and code predictions for ABCOVE aerosol code validation - Test AB5 , 1983 .

[10]  A principle of similarity for describing aerosol particle size distributions , 1987 .

[11]  T. J. Hanratty,et al.  Rate of deposition of droplets in annular two-phase flow , 1977 .

[12]  C. N. Davies,et al.  The Mechanics of Aerosols , 1964 .

[13]  E. R. Cohen,et al.  Approximate solution of the equations for aerosol agglomeration , 1971 .

[14]  H. F. Johnstone,et al.  Inertial Impaction of Aerosol Particles on Cylinders , 1955 .

[15]  The Behavior of Contained Radioactive Suspensions , 1980 .

[16]  R. Schefer,et al.  Thermophoresis of particles in a heated boundary layer , 1980, Journal of Fluid Mechanics.

[17]  R. G. Herrmann,et al.  Sampling of liquid aerosols by wires, cylinders, and slides, and the efficiency of impaction of the droplets. , 1949, Journal of colloid science.

[19]  T. Gillespie,et al.  The aging of ammonium chloride smokes. , 1951, Canadian journal of chemistry.

[20]  J. Seinfeld,et al.  Sectional representations for simulating aerosol dynamics , 1980 .

[21]  T. Gillespie,et al.  COAGULATION AND DEPOSITION IN STILL AEROSOLS OF VARIOUS SOLIDS , 1952 .