Characteristics of chloride deposits in a nuclear spent fuel dry storage system

Chi Ming Lai, Ting Yi Wang, Heui Yung Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For a concrete cask dry storage system, the characteristics of chlorides deposited on the surface of the stainless steel canister can significantly affect the susceptibility against stress corrosion cracking (SCC). This paper presents the result of an in-depth investigation into chlorides in the marine atmosphere and the effects on dry storage canisters. Recently, a series of full-scale thermal experiment and computational fluid dynamics (CFD) simulation have been implemented for a dry storage system. The simulated flow temperature and velocity are used to determine the air buoyancy and aerodynamic drag acting. The forces are then used to further predict the movement of chloride particles with the gravity force. The flow velocity is finally related to the critical size of a chloride particle leaving the system. The result obtained agrees well with those of field measurement and canister inspection. In brief, chlorides in the marine atmosphere may deposit on the canister surface, but the deposition rate is small.

Original languageEnglish
Title of host publicationPBNC 2018 - Pacific Basin Nuclear Conference
PublisherAmerican Nuclear Society
Pages334-338
Number of pages5
ISBN (Electronic)9780894487743
Publication statusPublished - 2019
Event2018 Pacific Basin Nuclear Conference, PBNC 2018 - San Francisco, United States
Duration: 2018 Sep 302018 Oct 4

Publication series

NamePBNC 2018 - Pacific Basin Nuclear Conference

Conference

Conference2018 Pacific Basin Nuclear Conference, PBNC 2018
CountryUnited States
CitySan Francisco
Period18-09-3018-10-04

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering

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