가압경수로형 사용후핵연료 처분용기의 예비 개념설계 평가

Assessment of a Pre-conceptual Design of a Spent PWR Fuel Disposal Container

Jongwon Choi, Dong-Keun Cho, Yang Lee, Heui-Joo Choi, Jong-Youl Lee

Abstract

In this paper, sets of engineering analyses were conducted to renew the overall dimensions and configurations of a disposal container proposed as a prototype in the previous study. Such efforts and calculation results can provide new design variables such as the inner basket array type and thickness of the outer shell and the lid & bottom of a spent nuclear fuel disposal container. These efforts include radiation shielding and nuclear criticality analyses to check to see whether the dimensions of the container proposed from the mechanical structural analyses can provide a nuclear safety or not. According to the results of the structural analysis of a PWR disposal container by varying the diameter of the container insert, the Maximum Von Mises stress from the 102 cm-container meets the safety factor of 2.0 for both extreme and normal load conditions. This container also satisfies the nuclear criticality and radiation safety limits. This decrease in the diameter results in a weight loss of a container by 20 tons.

Key Words : disposal container, Von Mises stress, spent PWR fuel, safety factor, deep geological repository, 처분용기, 가압경수로형 사용후핵연료, 심지층처분장

Reference

JNFCWT

Online Submission

Korean Radioactive
Waste Society (KRS)

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