Abstract
The thermal impacts of hull and end piece wastes from the reprocessing of MOX spent fuels burned in LWRs on repository performance were investigated. The heat generation rates in MOX spent fuels and the resulting heat generation rates in hull and end piece wastes change depending on the history of MOX fuels. This history includes the burn-up of UO 2 spent fuels from which the Pu is obtained, the cooling period before reprocessing, the storage period of fresh MOX fuels before being loaded into an LWR, as well as the burn-up of the MOX fuels. The heat generation rates in hull and end piece wastes from the reprocessing of MOX spent fuels with any of those histories are significantly larger than those from UO 2 spent fuels with burn-ups of 45 GWd/THM. If a temperature below 808C is specified for cement-based materials used in waste packages after disposal, the allowable number of canisters containing compacted hull and end pieces in a package for 45 and 70 GWd-MOX needs to be limited to a value of 0.4-1.6, which is significantly lower than 4.0 for 45 GWd-UO 2.
| Original language | English |
|---|---|
| Pages (from-to) | 310-319 |
| Number of pages | 10 |
| Journal | journal of nuclear science and technology |
| Volume | 49 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Apr 5 2012 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
Cite this
Burning of MOX fuels in LWRs; Fuel history effects on thermal properties of hull and end piece wastes and the repository performance. / Hirano, Fumio; Sato, Seichi; Kozaki, Tamotsu; Inagaki, Yaohiro; Iwasaki, Tomohiko; Ohe, Toshiaki; Kato, Kazuyuki; Kitayama, Kazumi; Nagasaki, Shinya; Niibori, Yuichi.
In: journal of nuclear science and technology, Vol. 49, No. 3, 05.04.2012, p. 310-319.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Burning of MOX fuels in LWRs; Fuel history effects on thermal properties of hull and end piece wastes and the repository performance
AU - Hirano, Fumio
AU - Sato, Seichi
AU - Kozaki, Tamotsu
AU - Inagaki, Yaohiro
AU - Iwasaki, Tomohiko
AU - Ohe, Toshiaki
AU - Kato, Kazuyuki
AU - Kitayama, Kazumi
AU - Nagasaki, Shinya
AU - Niibori, Yuichi
PY - 2012/4/5
Y1 - 2012/4/5
N2 - The thermal impacts of hull and end piece wastes from the reprocessing of MOX spent fuels burned in LWRs on repository performance were investigated. The heat generation rates in MOX spent fuels and the resulting heat generation rates in hull and end piece wastes change depending on the history of MOX fuels. This history includes the burn-up of UO 2 spent fuels from which the Pu is obtained, the cooling period before reprocessing, the storage period of fresh MOX fuels before being loaded into an LWR, as well as the burn-up of the MOX fuels. The heat generation rates in hull and end piece wastes from the reprocessing of MOX spent fuels with any of those histories are significantly larger than those from UO 2 spent fuels with burn-ups of 45 GWd/THM. If a temperature below 808C is specified for cement-based materials used in waste packages after disposal, the allowable number of canisters containing compacted hull and end pieces in a package for 45 and 70 GWd-MOX needs to be limited to a value of 0.4-1.6, which is significantly lower than 4.0 for 45 GWd-UO 2.
AB - The thermal impacts of hull and end piece wastes from the reprocessing of MOX spent fuels burned in LWRs on repository performance were investigated. The heat generation rates in MOX spent fuels and the resulting heat generation rates in hull and end piece wastes change depending on the history of MOX fuels. This history includes the burn-up of UO 2 spent fuels from which the Pu is obtained, the cooling period before reprocessing, the storage period of fresh MOX fuels before being loaded into an LWR, as well as the burn-up of the MOX fuels. The heat generation rates in hull and end piece wastes from the reprocessing of MOX spent fuels with any of those histories are significantly larger than those from UO 2 spent fuels with burn-ups of 45 GWd/THM. If a temperature below 808C is specified for cement-based materials used in waste packages after disposal, the allowable number of canisters containing compacted hull and end pieces in a package for 45 and 70 GWd-MOX needs to be limited to a value of 0.4-1.6, which is significantly lower than 4.0 for 45 GWd-UO 2.
UR - http://www.scopus.com/inward/record.url?scp=84859251080&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859251080&partnerID=8YFLogxK
U2 - 10.1080/00223131.2012.660021
DO - 10.1080/00223131.2012.660021
M3 - Article
AN - SCOPUS:84859251080
VL - 49
SP - 310
EP - 319
JO - Journal of Nuclear Science and Technology
JF - Journal of Nuclear Science and Technology
SN - 0022-3131
IS - 3
ER -