具有重组器和湿式洗涤器的聚变燃料循环分解系统的建模和验证:稳态分析和动态控制案例研究

IF 2 3区 工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY
Yoonjae Lee , Wonho Lee , Min Ho Chang , Jae-Uk Lee , Jeehoon Han
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引用次数: 0

摘要

有效的氚管理对聚变燃料循环的环境安全和法规遵从至关重要。本研究提出了一个处理数千Nm3/h氚污染空气的大规模脱硝系统(DS)的稳态和动态模型的开发和验证。稳态模型是通过放大实验室规模的重组器和湿式洗涤器模型建立的,滤除系数超过100。随后建立了一个动态模型,以评估涉及氚突然释放的事故情景下DS的瞬态响应。模拟结果表明,如果不加以控制,氚化水的排放可能会超过规定的限制。为了缓解这一问题,采用了一个比例控制器,根据实时氚浓度测量来调节湿式洗涤器中的液态水流速。与采用传统的调谐方法不同,我们对比例增益(KC)进行了参数化研究,以评估各种情况下的控制性能,并确保在不确定条件下的顺应性。分析确定了法规遵守的阈值KC,并选择KC = 14作为减排和水负荷之间的实际折衷。这些模型和控制策略支持在稳态和瞬态条件下安全有效地设计DS操作。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling and validation of a detritiation system with recombiner and wet scrubber for fusion fuel cycle: Steady-state analysis and dynamic control case study
Effective tritium management is essential for environmental safety and regulatory compliance in fusion fuel cycles. This study presents the development and validation of steady-state and dynamic models for a large-scale detritiation system (DS) that processes thousands of Nm3/h of tritium-contaminated air. The steady-state model was established by scaling up validated laboratory-scale models of a recombiner and a wet scrubber, achieving a detritiation factor exceeding 100. A dynamic model was subsequently developed to assess the transient response of the DS under accident scenarios involving sudden tritium releases. The simulation results revealed that without control, tritiated water emissions could exceed regulatory limits. To mitigate this, a proportional controller was implemented to regulate the liquid water flow rate in the wet scrubber based on real-time tritium concentration measurements. Rather than employing conventional tuning methods, a parametric study of the proportional gain (KC) was conducted to evaluate the control performance across various scenarios and to ensure compliance under uncertain conditions. The analysis identified a threshold KC for regulatory adherence and selected KC = 14 as a practical compromise between emission reduction and water load. These models and control strategies support the safe and efficient design of DS operations under both steady-state and transient conditions.
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来源期刊
Fusion Engineering and Design
Fusion Engineering and Design 工程技术-核科学技术
CiteScore
3.50
自引率
23.50%
发文量
275
审稿时长
3.8 months
期刊介绍: The journal accepts papers about experiments (both plasma and technology), theory, models, methods, and designs in areas relating to technology, engineering, and applied science aspects of magnetic and inertial fusion energy. Specific areas of interest include: MFE and IFE design studies for experiments and reactors; fusion nuclear technologies and materials, including blankets and shields; analysis of reactor plasmas; plasma heating, fuelling, and vacuum systems; drivers, targets, and special technologies for IFE, controls and diagnostics; fuel cycle analysis and tritium reprocessing and handling; operations and remote maintenance of reactors; safety, decommissioning, and waste management; economic and environmental analysis of components and systems.
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