Advanced Nuclear Technology: Integrated Pressurized Water Reactor (iPWR) Containment Aerosol Deposition Behavior
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States)
- Pittsburgh Technical LLC, Allison Park, PA (United States)
- The Hastings Group LLC, Charlotte, NC (United States)
- LPI, Inc., Amesbury, MA (United States)
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.
- Research Organization:
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE)
- DOE Contract Number:
- NE0008468
- OSTI ID:
- 1459651
- Report Number(s):
- NE0008468; TRN: US1902718
- Country of Publication:
- United States
- Language:
- English
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