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Title: APT COOLANT PURIFICATION AND PLATEOUT STUDIES

Abstract

No abstract prepared.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
772998
Report Number(s):
LA-UR-99-3515
TRN: US0111253
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 Apr 1999
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; 43 PARTICLE ACCELERATORS; COOLANTS; PURIFICATION; ACCELERATORS; TRITIUM; ISOTOPE PRODUCTION

Citation Formats

M. RICHARDS, R. LIU, and ET AL. APT COOLANT PURIFICATION AND PLATEOUT STUDIES. United States: N. p., 1999. Web.
M. RICHARDS, R. LIU, & ET AL. APT COOLANT PURIFICATION AND PLATEOUT STUDIES. United States.
M. RICHARDS, R. LIU, and ET AL. 1999. "APT COOLANT PURIFICATION AND PLATEOUT STUDIES". United States. doi:. https://www.osti.gov/servlets/purl/772998.
@article{osti_772998,
title = {APT COOLANT PURIFICATION AND PLATEOUT STUDIES},
author = {M. RICHARDS and R. LIU and ET AL},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1999,
month = 4
}

Conference:
Other availability
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  • Version 00 The one-dimensional computer program PADLOC is designed to analyze steady-state and time-dependent plateout of fission products in an arbitrary network of pipes. The problem solved is one of mass transport of impurities in a fluid, including the effects of sources in the fluid and in the plateout surfaces, convection along the flow paths, decay, adsorption on surfaces (plateout), and desorption from surfaces. These phenomena are governed by a system of coupled, nonlinear partial differential equations.
  • The one-dimensional computer program PADLOC is designed to analyze steady-state and time-dependent plateout of fission products in an arbitrary network of pipes. The problem solved is one of mass transport of impurities in a fluid, including the effects of sources in the fluid and in the plateout surfaces, convection along the flow paths, decay, adsorption on surfaces (plateout), and desorption from surfaces. These phenomena are governed by a system of coupled, nonlinear partial differential equations. The solution is achieved by (a) linearizing the equations about an approximate solution, employing a Newton Raphson iteration technique, (b) employing a finite difference solutionmore » method with an implicit time integration, and (c) employing a substructuring technique to logically organize the systems of equations for an arbitrary flow network.« less
  • The behavior of some of the prominent fission products along their convection pathways is dominated by the interaction of other species with them. This gave rise to the development of a plateout code capable of analyzing coupled species effects. The single species plateout computer program PADLOC is described in Part I of this report. The present Part II is concerned with the extension of PADLOC to MULTI*PADLOK, a multiple species version of PADLOC. MULTI*PADLOC is designed to analyze the time and one-dimensional spatial dependence of the concentrations of interacting (fission product) species in the carrier gas and on the surroundingmore » wall surfaces on an arbitrary network of flow channels. The problem solved is one of mass transport of several impurity spceis in a gas, including the effects of sources in the gas and on the surface, convection along the flow paths, decay interaction, sorption interaction on the wall surfaces, and chemical reaction interactions in the gas and on the surfaces. These phenomena are governed by a system of coupled, nonlinear partial differential equations. The solution is achieved by: (a) linearizing the equations about an approximate solution and employing a Newton-Raphson iteration technique, (b) employing a finite difference solution method with an implicit time integration, and (c) employing a substructuring technique to logically organize the systems of equations for an abitrary flow network.« less