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A Study on HSI Concept Design for Monitoring and Controlling Multi-Module Small Modular Reactors
Young Do Koo(구영도),Sa Kil Kim(김사길),Moon Won Song(송문원),Kwang Il Jeong(정광일),Joon Ku Lee(이준구) 대한인간공학회 2021 대한인간공학회 학술대회논문집 Vol.2021 No.11
Objective: The objective of the study is to elicit a basic concept for a new human-system interface (HSI) for integrated monitoring and controlling multi-module reactors, which is capable of minimizing any negative effects on the safety of the reactors or human performance. Background: Recently the researches on developing a new nuclear reactor system (i.e., small modular reactors (SMRs)) as well as improving the safety of the existing large-scale nuclear power plants (NPPs) are being carried out. In light water SMRs being developed, there are some characteristics in common, which are distinguished from the existing light water reactors: The safety of SMRs is secured through both advanced designs (e.g., passive safety systems, high level of automation, and so on) and proven technologies utilized also in the existing NPPs. Economy of SMRs due to less than 300 MWe production capacity is planning to be usually covered through multi-module SMR operation by one operator using an individual workstation in a single main control room, as well as a high level of automation technology. More works are accompanied because of more than one mission such as electricity generation, which is the conventional mission, and desalination or hydrogen production, which are new ones. According to these characteristics of SMRs, a new human-system interface (HSI) design being able to monitor and control integrated multi-module SMRs, differ from the existing HSI, is needed in common in SMRs. Specifically, in HSI, several essential capabilities are required: operator’s tasks for monitoring and controlling multiple reactors and access to information on reactors should be supported, and explanations for high levels of automation and alarms also have to be provided. Accordingly, a new HSI concept design proper to multi-module SMRs in view of users’ and regulatory requirements and considerations is necessary. Furthermore, competitiveness of SMR being developed in Republic of Korea can be strengthened by drawing a new HSI design. Method: Current HSI designs for a single reactor designed in accordance with standard design process (i.e., NUREG-0700 Rev.3) is expected to be constrained to monitor and control multi-module SMRs. Thus, a new HSI concept should be presented through addressing challengeable considerations or trying a novel approach. Functional requirements needed in providing plant status, alarm, and controls for multiple SMRs are considered from users’ or a regulatory point-of-view to draw a new HSI design concept, beyond addressing a single reactor only. In addition, HSIs in other multi-module SMRs or surrogate facilities are investigated. Results: New HSI concepts for monitoring and controlling multiple SMRs are proposed, and some of the design examples are drawn, which is distinguished for the existing HSI. Conclusion: As this study is a part of developing a new HSI design for multi-module SMRs, additional study will be sequentially performed based on the result drawn in the study. Application: The result of this study will be used as the input to a study for the basic design of the HSI to be available to multi-module reactors in the future.
농촌 주민의 시 치료 프로그램의 치유효과에 관한 질적 연구
심영도(Young-Do Shim),김현(Hyun Kim),강대구(Dae-Koo Kang) 한국농촌지도학회 2021 농촌지도와 개발 Vol.28 No.3
This study aims to explore the effects of poetry therapy program on individual stress, depression, and self-esteem for rural residents. For the research data, before the end of the poetry therapy program, participants were asked to write a confession, and as a retrospective study, in-depth interviews were conducted with 4 participants to find out whether the effects of the program continued after about 14 months. According to the results of the study, after the program ended, it was said that it was a meaningful time to communicate and live positively through poetry. In a retrospective study, it was said that poetry writing relieved depression, released and purified emotions, created a sense of relaxation and provided an opportunity for self-reflection. Based on these results, it was confirmed that rural residents who are experiencing many psychological difficulties can improve their negative psychology and find peace of mind through poetry writing.