基于CFD分析的集漏系统分析方法的建立与评价

Dae-Kyung Choi, Won-Man Park, Dong-Jin Euh, Tae-Soon Kwon, Choengryul Choi
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引用次数: 0

摘要

假设有少量泄漏超过了核电站运行条件的极限。在这种情况下,可能会发生核电站关闭造成的损失,或者可能发生泄漏事故。因此,有必要开发一种能够快速检测即使是少量泄漏的系统,并且已经进行了研究以满足这一需求。为了开发这样的系统,有必要了解系统的热液特性。本研究建立了基于cfd的泄漏检测系统评估流程。采用数值分析模型模拟泄漏,并进行两步CFD分析,以评估其适用性。首先,对保温材料内部的泄漏行为进行了研究,并对管道保温材料与外盖间隙的影响进行了评估。在第二步中,使用绝缘泄漏行为分析结果作为输入条件对收集回路进行分析。研究结果将用于构建收集回路实验装置,有助于了解收集回路的热流特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Establishment and Evaluation of Leak Collection System Analysis Method Using CFD Analysis
Suppose a small amount of leakage exceeds the limit of the operating conditions of a nuclear power plant. In that case, losses due to the nuclear power plant shutdown may occur, or accidents due to leakage may occur. Consequently, there has been a need to develop a system capable of quickly detecting even small amounts of leakage, and research has been conducted to address this need. To develop such a system, it is necessary to understand the thermal-hydraulic characteristics of the system. This study established a CFD-based evaluation process for evaluating leak detection systems. A numerical analysis model was used to simulate leakage, and a two-step CFD analysis was performed to assess its applicability. In the first step, a study of the leakage behavior in the insulation material was conducted, and the effect of the gap between the pipe insulation material and the outer cover was evaluated. In the second step, the collection loop was analyzed using the results of the leakage behavior analysis in the insulation as an input condition. The results of this study were used to construct the collection loop experimental device and will help in understanding the heat flow characteristics in the collection loop.
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