Thermo-chemical Characteristics of Powder Fabricated by Oxidation of Spent PWR Fuel

Thermochemcial characteristics of powder fabricated using oxidation treatment of spent PWR fuel and SIMFUEL were evaluated for recycling of spent fuel such as DUPIC process. Especially, the influence of spent fuel burn-ups on the powder fabrication characteristics was experimentally evaluated, ranging from 27,300 to 65,000 MWd/tU. Densities of powder manufactured from an oxidation, OREOX and the milling processes at the same process conditions were compared as a function of the fuel burn-ups respectively. Also, based on chemical analysis results, homogeneity of fissile elements in oxidized powder was confirmed.




References:
[1] J.-S. Lee, K.-C. Song, M.-S. Yang, K.-S. Chun, B.-W. Rhee, J.-S. Hong,
H.-S. Park, C.-S. Rim, and H. Keil, "Research and Development Program
of KAERI for DUPIC (Direct Use of Spent PWR Fuel in CANDU
Reactors)," Proc. Int. Conf. and Technology Exhibition on Future Nuclear
System, GLOBAL'93, September. 12-17, 1993, American Nuclear
Society, Seattle, USA.
[2] M.-S. Yang, H. Choi, C.-J. Jeong, K.-C. Song, J.-W. Lee, G.-I. Park,
H.-D. Kim, W.-I. Ko, J.-J. Park, K.-H. Kim, H.-H. Lee, J.-H. Park, "The
Status and Prospect of the DUPIC Fuel Technology," Nuclear
Engineering and Technology, Vol.38, pp 359-374, 2006.
[3] W.-K. Kim, J.-W. Lee, G.-I. Park, D.-Y. Lee, Y.-S. Lee, M.-S. Yang,
"Development of Manufacturing, Inspection and Test Plan for Fabrication
of DUPIC Fuel Pellets and Elements," KAERI/TR-2349/2002, Korea
Atomic Energy Research Institute, 2002.
[4] G.-I. Park, J.-W. Lee, W.-K. Kim, D.-Y. Lee, Y.-S. Lee, M.-S. Yang,
"Development of Manufacturing and Operating Procedure for Fabrication
of DUPIC Fuel," KAERI/TR-2382/2003, Korea Atomic Energy Research
Institute, 2003.
[5] J. Cobos, D.Papaionannou, J.Spino, M. Coquerelle, "Phase
Characterisation of Simulated High Burn-up UO2 Fuel," J. of Alloys and
Compounds, Vol. 610, pp 271-273, 1998.
[6] J.-W. Lee, W.-K. Kim, Jae W. Lee, G.-I. Park, M.-S. Yang, K.-C.
Song, "Remote fabrication of DUPIC fuel pellets in a hot cell under
quality assurance program," J. of Nuclear Science and Technology, Vol.
44, No. 4, pp 597-606, 2007.,
[7] G-I. Park, Jae W. Lee, J.-W. Lee, Y.-W. Lee, K.-C. Song, "Effect of
impurities on the microstructure of DUPIC fuel pellets using the
SIMFUEL techniques," Nuclear Engineering and Technology, Vol. 40,
No. 3, pp 191-198, 2008.
[8] G.-I. Park, K.-W. Kim, D.-Y. Lee, J.-W. Lee, J.- J. Park, K.-C. Song,"
Effect of spent PWR fuel burn-up on oxidative decladding efficiency,"
Global 2009, September 6-11, 2009, American Nuclear Society, Paris,
France.