Halden In-Reactor Test to Exhibit PWR Axial Offset Anomaly

P.Bennett, B. Beverskog, R.Suther

EPRI (United States)

关键词: Boric Acid;    Coolants;    Mitigation Pwr, Axial Offset Anomaly, Aoa, Enriched Boric Acid, Eba, In-Reactor Test, Research Reactor;    Pwr, Axial Offset Anomaly, Aoa, Enriched Boric Acid, Eba, In-Reactor Test, Research Reactor;    Boron;   

DOI  :  10.2172/837201
RP-ID  :  1008106
RP-ID  :  FC07-00NE22796
RP-ID  :  837201

美国|英语

来源: UNT Digital 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.