United States Nuclear Regulatory Commission - Protecting People and the Environment

The Establishment and Assessment of Kuosheng (BWR/6) NPP
Dry-storage System TRACE/SNAP Model (NUREG/IA-0451)

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Publication Information

Manuscript Completed: September 2014
Date Published: January 2015

Prepared by:
Chunkuan Shih*, Jong-Rong Wang*, Hao-Tzu Lin, Yu Chiang*

Institute of Nuclear Energy Research, Atomic Energy Council, R.O.C.
1000, Wenhua Rd., Chiaan Village, Lungtan, Taoyuan, 325, Taiwan

*Institute of Nuclear Engineering and Science, National Tsing Hua University
101 Section 2, Kuang Fu Rd., HsinChu, Taiwan

K. Tien, NRC Project Manager

Division of Systems Analysis
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

Prepared as part of:
The Agreement on Research Participation and Technical Exchange
Under the Thermal-Hydraulic Code Applications and Maintenance Program (CAMP)

Published by:
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

Availability Notice


The dry-storage systems of nuclear power plants (NPPs) in Taiwan have become one of the major safety concerns. This research focuses on the development of Kuosheng NPP (BWR/6) dry-storage system TRACE/SNAP model. There are two steps in this research. The first step is the verification of TRACE/SNAP dry-storage model by using VSC-17 experimental data. By using VSC-17 data, VSC-17 dry-storage system was established by TRACE/SNAP. Then, the analysis results of TRACE were compared with VSC-17 data. The results of TRACE were similar to VSC-17 data. It indicates that TRACE has the respectable accuracy in the simulation and analysis of the dry-storage systems. The next step is the application of TRACE in the dry-storage system of Kuosheng NPP. Kuosheng NPP is the second BWR NPP of Taiwan Power Company. In order to solve the storage of the spent fuels, Taiwan Power Company developed the new dry-storage system for Kuosheng NPP. In this step, the dry-storage system model of Kuosheng NPP was established by TRACE/SNAP. Then, the steady state simulation of this model was performed and the results of TRACE were compared with Kuosheng NPP data. The results of TRACE in the steady state calculation were consistent with Kuosheng NPP data. Finally, this model was used to perform the safety analysis of Kuosheng NPP dry-storage system. Besides, FRAPTRAN code was used to calculate the transient performance of fuel rods.

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