Halden In-Reactor Test to Exhibit PWR Axial Offset Anomaly.

Technical Information Center Oak Ridge Tennessee

关键词: PWR type reactors;    Boric acid;    Corrosion products;    Boron;    Hydraulics;   

RP-ID  :  DE2005837201

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Many PWRs have encountered the axial offset anomaly (AOA) since the early 1990s, and these experiences have been reported widely. AOA is a phenomenon associated with localized boron hideout in corrosion product deposits (crud) on fuel surfaces. Several mitigation approaches have been developed or are underway to either delay the onset of AOA or avoid it entirely. This study describes the first phase of an experimental program designed to investigate whether the use of enriched boric acid (EBA) in the reactor coolant can mitigate AOA.