Abstract
Three CANDU-type fuel elements were subjected to a blowdown transient in the Blowdown Test Facility of the NRU reactor. These elements, operating at 41 to 43 kW/m, went into sustained dryout about 22 seconds after depressurization. Sheath temperatures escalated rapidly following dryout, and subsequent damage to the elements caused a flow blockage below the fuel assembly. The high-temperature transient was terminated by automatic reactor shutdown and the initiation of cold water rewet. The first rewet water vapourized, but rewet eventually cooled the fuel. Fission products were released and measured during and following the transient. Post-irradiation examination has shown severe fuel damage at the bottom of the assembly.
MacDonald, R D;
DeVaal, J W;
Cox, D S;
Dickson, L W;
Jonckheere, M G;
Ferris, C E;
Keller, N A;
[1]
Wadsworth, S L
[2]
- Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Nuclear Labs.
- Ontario Hydro, Toronto, ON (Canada)
Citation Formats
MacDonald, R D, DeVaal, J W, Cox, D S, Dickson, L W, Jonckheere, M G, Ferris, C E, Keller, N A, and Wadsworth, S L.
An in-reactor loss-of-coolant test with flow blockage and rewet.
Canada: N. p.,
1991.
Web.
MacDonald, R D, DeVaal, J W, Cox, D S, Dickson, L W, Jonckheere, M G, Ferris, C E, Keller, N A, & Wadsworth, S L.
An in-reactor loss-of-coolant test with flow blockage and rewet.
Canada.
MacDonald, R D, DeVaal, J W, Cox, D S, Dickson, L W, Jonckheere, M G, Ferris, C E, Keller, N A, and Wadsworth, S L.
1991.
"An in-reactor loss-of-coolant test with flow blockage and rewet."
Canada.
@misc{etde_10142524,
title = {An in-reactor loss-of-coolant test with flow blockage and rewet}
author = {MacDonald, R D, DeVaal, J W, Cox, D S, Dickson, L W, Jonckheere, M G, Ferris, C E, Keller, N A, and Wadsworth, S L}
abstractNote = {Three CANDU-type fuel elements were subjected to a blowdown transient in the Blowdown Test Facility of the NRU reactor. These elements, operating at 41 to 43 kW/m, went into sustained dryout about 22 seconds after depressurization. Sheath temperatures escalated rapidly following dryout, and subsequent damage to the elements caused a flow blockage below the fuel assembly. The high-temperature transient was terminated by automatic reactor shutdown and the initiation of cold water rewet. The first rewet water vapourized, but rewet eventually cooled the fuel. Fission products were released and measured during and following the transient. Post-irradiation examination has shown severe fuel damage at the bottom of the assembly.}
place = {Canada}
year = {1991}
month = {Oct}
}
title = {An in-reactor loss-of-coolant test with flow blockage and rewet}
author = {MacDonald, R D, DeVaal, J W, Cox, D S, Dickson, L W, Jonckheere, M G, Ferris, C E, Keller, N A, and Wadsworth, S L}
abstractNote = {Three CANDU-type fuel elements were subjected to a blowdown transient in the Blowdown Test Facility of the NRU reactor. These elements, operating at 41 to 43 kW/m, went into sustained dryout about 22 seconds after depressurization. Sheath temperatures escalated rapidly following dryout, and subsequent damage to the elements caused a flow blockage below the fuel assembly. The high-temperature transient was terminated by automatic reactor shutdown and the initiation of cold water rewet. The first rewet water vapourized, but rewet eventually cooled the fuel. Fission products were released and measured during and following the transient. Post-irradiation examination has shown severe fuel damage at the bottom of the assembly.}
place = {Canada}
year = {1991}
month = {Oct}
}