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A study of the safety depressurization system operation for YGN 34 accident management using maap code

机译:使用maap代码进行YGN 3&4事故管理的安全降压系统运行的研究

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Since TMI-2 accident, the accident management program (AMP) has been actively studied and its attributes and structure were identified. To manage accidents not dealt with by emergency operation procedure (EOP), plants should maximize their capabilities of managing with them by using exisiting systems. In this study, the feasibility to use the safety depressurization system (SDS) for accident managment is investigated based on thermohydraulic analysis as a part of the YGN 3&4 AMP. The SDS is designed for the feed-and-bleed operation under total loss of feedwater condition. Normally its operation is not permitted elsewhere. According to this study, some accidents can be terminated by using the SDS to inject water into RCS using LPSI without significant core damage. Consequently this study shows that the SDS operation with RCS injection is feasible for accident management.
机译:自TMI-2事故以来,已经对事故管理程序(AMP)进行了积极研究,并确定了其属性和结构。为了管理未通过紧急操作程序(EOP)处理的事故,工厂应通过使用现有系统来最大程度地发挥其管理能力。在这项研究中,基于热工液压分析作为YGN 3&4 AMP的一部分,研究了使用安全降压系统(SDS)进行事故管理的可行性。 SDS设计用于在给水完全丧失的情况下进行给排水操作。通常,它的操作在其他地方是不允许的。根据这项研究,可以通过使用SDS使用LPSI将水注入RCS来终止某些事故,而不会造成严重的岩心损坏。因此,这项研究表明,带RCS注入的SDS操作对于事故管理是可行的。

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