Feasibility Study on the Optimization of Offsite Consequence Analysis by Particle Size Distribution Setting and Multi-Threading 


Vol. 39,  No. 1, pp. 96-103, Feb.  2024
10.14341/JKOSOS.2024.39.1.96


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  Abstract

The demand for mass calculation of offsite consequence analysis to conduct exhaustive single-unit or multi-unit Level 3 PSA is increasing. In order to perform efficient offsite consequence analyses, the Korea Atomic Energy Research Institute is conducting model optimization studies to minimize the analysis time while maintaining the accuracy of the results. A previous study developed a model optimization method using efficient plume segmentation and verified its effectiveness. In this study, we investigated the possibility of optimizing the model through particle size distribution setting by checking the reduction in analysis time and deviation of the results. Our findings indicate that particle size distribution setting affects the results, but its effect on analysis time is insignificant. Therefore, it is advantageous to set the particle size distribution as fine as possible. Furthermore, we evaluated the effect of multithreading and confirmed its efficiency. Future optimization studies should be conducted on various input factors of offsite consequence analysis, such as spatial grid settings.

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  Cite this article

[IEEE Style]

김승환 and 김성엽, "Feasibility Study on the Optimization of Offsite Consequence Analysis by Particle Size Distribution Setting and Multi-Threading," Journal of the Korean Society of Safety, vol. 39, no. 1, pp. 96-103, 2024. DOI: 10.14341/JKOSOS.2024.39.1.96.

[ACM Style]

김승환 and 김성엽. 2024. Feasibility Study on the Optimization of Offsite Consequence Analysis by Particle Size Distribution Setting and Multi-Threading. Journal of the Korean Society of Safety, 39, 1, (2024), 96-103. DOI: 10.14341/JKOSOS.2024.39.1.96.

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