An advanced nuclear fuel of PLUS7™ for OPR1000s and APR1400s in Korea has been developed and irradiated in PWR nuclear power reactors. It has high performance characteristics from the safety and economy points of view comparing to the current fuel. Zirconium-based nuclear fuel structural components are grown and/or deformed under the circumstances of high temperature and irradiation. Excessive growth or deformation should be prevented not to interfere with adjacent fuels or reactor internals. After development for three (3) years from 1999, this fuel was verified successfully using four (4) LTAs in Ulchin unit 3. After each cycle, irradiation-related performance items were measured using the precise measurement systems in poolside and evaluated. After three (3) cycle irradiations, one discharged fuel assembly was disassembled and examined in detail. Finally, ten (10) rods including skeleton were sent to PIE test facility for further detailed examination. After in-reactor verification using LTAs, eight (8) OPR1000s were replaced with this advanced fuel. In the mean while, the surveillance program using the commercially supplied fuels was launched to reconfirm irradiation-related parameters such as growth, creep, corrosion and deformation, etc. Four (4) fuel assemblies which consist of two (2) assemblies to be discharged after two (2) cycle irradiations and the other two (2) to be discharged after three (3) cycle irradiations were selected for this surveillance program. In this paper, irradiation-induced parameters such as fuel assembly width and length growth, assembly bow and twist etc. are updated.
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ASME 2011 Pressure Vessels and Piping Conference
July 17–21, 2011
Baltimore, Maryland, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4457-1
PROCEEDINGS PAPER
Irradiation Performance Update on Advanced Nuclear Fuel of PLUS7™
Young Ki Jang,
Young Ki Jang
KEPCO Nuclear Fuel, Daejeon, Korea
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Kyeong Lak Jeon,
Kyeong Lak Jeon
KEPCO Nuclear Fuel, Daejeon, Korea
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Jung Cheol Shin,
Jung Cheol Shin
KEPCO Nuclear Fuel, Daejeon, Korea
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Yong Hwan Kim,
Yong Hwan Kim
KEPCO Nuclear Fuel, Daejeon, Korea
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Sun Tack Hwang,
Sun Tack Hwang
KEPCO Nuclear Fuel, Daejeon, Korea
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Man Soo Kim,
Man Soo Kim
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
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Tae Hyoung Lee,
Tae Hyoung Lee
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
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Yong Bae Yoon,
Yong Bae Yoon
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
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Tae Wan Kim
Tae Wan Kim
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
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Young Ki Jang
KEPCO Nuclear Fuel, Daejeon, Korea
Kyeong Lak Jeon
KEPCO Nuclear Fuel, Daejeon, Korea
Jae Ik Kim
KEPCO Nuclear Fuel, Daejeon, Korea
Jung Cheol Shin
KEPCO Nuclear Fuel, Daejeon, Korea
Yong Hwan Kim
KEPCO Nuclear Fuel, Daejeon, Korea
Sun Tack Hwang
KEPCO Nuclear Fuel, Daejeon, Korea
Man Soo Kim
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
Tae Hyoung Lee
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
Yong Bae Yoon
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
Tae Wan Kim
Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
Paper No:
PVP2011-57927, pp. 311-315; 5 pages
Published Online:
May 21, 2012
Citation
Jang, YK, Jeon, KL, Kim, JI, Shin, JC, Kim, YH, Hwang, ST, Kim, MS, Lee, TH, Yoon, YB, & Kim, TW. "Irradiation Performance Update on Advanced Nuclear Fuel of PLUS7™." Proceedings of the ASME 2011 Pressure Vessels and Piping Conference. Volume 7: Operations, Applications, and Components. Baltimore, Maryland, USA. July 17–21, 2011. pp. 311-315. ASME. https://doi.org/10.1115/PVP2011-57927
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