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Title: Advanced Nuclear Technology: Integrated Pressurized Water Reactor (iPWR) Containment Aerosol Deposition Behavior

Abstract

Under assumed severe accident conditions, a nuclear reactor’s containment vessel provides a defense-in-depth function by preventing radionuclide particle release. This is achieved by creating a physical barrier and by decontamination (removal of aerosolized particles produced during the accident). Decontamination occurs through active mechanical systems (where applicable) and passive natural occurring phenomena. Due to their comparatively higher containment surface area to volume ratios when compared to large light water reactors (LWRs), the integrated pressurized water reactor (iPWR) subcategory of small modular reactors (SMRs) has design features that increase the significance of the passive decontamination factors, due to the following natural occurring phenomena: gravitational settling, thermophoresis, diffusiophoresis, and impaction due to convective flows. The purpose of this study is to provide estimates for the decontamination associated with these phenomena. Specifically, these results provide decontamination factors associated with the thermal-hydraulic and geometric parameters that characterize iPWRs, based on the experimental work documented in this report.

Authors:
 [1];  [2];  [3];  [4]
  1. Electric Power Research Inst. (EPRI), Palo Alto, CA (United States)
  2. Pittsburgh Technical LLC, Allison Park, PA (United States)
  3. The Hastings Group LLC, Charlotte, NC (United States)
  4. LPI, Inc., Amesbury, MA (United States)
Publication Date:
Research Org.:
Electric Power Research Inst. (EPRI), Palo Alto, CA (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1459651
Report Number(s):
NE0008468
DOE Contract Number:  
NE0008468
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; Integrated pressurized water reactor (iPWR); Small modular reactor (SMR); Aerosol; Decontamination; Passive containment; Phoresis

Citation Formats

King, Ron, Talabi, Sola, Hastings, Peter, and Zysk, Gregory. Advanced Nuclear Technology: Integrated Pressurized Water Reactor (iPWR) Containment Aerosol Deposition Behavior. United States: N. p., 2018. Web. doi:10.2172/1459651.
King, Ron, Talabi, Sola, Hastings, Peter, & Zysk, Gregory. Advanced Nuclear Technology: Integrated Pressurized Water Reactor (iPWR) Containment Aerosol Deposition Behavior. United States. doi:10.2172/1459651.
King, Ron, Talabi, Sola, Hastings, Peter, and Zysk, Gregory. Mon . "Advanced Nuclear Technology: Integrated Pressurized Water Reactor (iPWR) Containment Aerosol Deposition Behavior". United States. doi:10.2172/1459651. https://www.osti.gov/servlets/purl/1459651.
@article{osti_1459651,
title = {Advanced Nuclear Technology: Integrated Pressurized Water Reactor (iPWR) Containment Aerosol Deposition Behavior},
author = {King, Ron and Talabi, Sola and Hastings, Peter and Zysk, Gregory},
abstractNote = {Under assumed severe accident conditions, a nuclear reactor’s containment vessel provides a defense-in-depth function by preventing radionuclide particle release. This is achieved by creating a physical barrier and by decontamination (removal of aerosolized particles produced during the accident). Decontamination occurs through active mechanical systems (where applicable) and passive natural occurring phenomena. Due to their comparatively higher containment surface area to volume ratios when compared to large light water reactors (LWRs), the integrated pressurized water reactor (iPWR) subcategory of small modular reactors (SMRs) has design features that increase the significance of the passive decontamination factors, due to the following natural occurring phenomena: gravitational settling, thermophoresis, diffusiophoresis, and impaction due to convective flows. The purpose of this study is to provide estimates for the decontamination associated with these phenomena. Specifically, these results provide decontamination factors associated with the thermal-hydraulic and geometric parameters that characterize iPWRs, based on the experimental work documented in this report.},
doi = {10.2172/1459651},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jul 02 00:00:00 EDT 2018},
month = {Mon Jul 02 00:00:00 EDT 2018}
}

Technical Report:

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