• Proceedings of the Korean Radioactive Waste Society Conference
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• 2004.06a
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• pp.189-192
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• 2004

본 연구에서는 한국형 중저준위 방사성폐기물 처분시설 안전성 평가를 위한 FEP 목록 도출 방법 및 선별 원칙들을 제시하였으며, 처분장에서의 핵종 이동 시나리오에 대해서는 생태계의 특성 및 공학방벽에 따라 각각의 RES (Rock Engineering System)를 구성하여 각 상황별 핵종이동을 모사 할 수 있도록 제안하였다. 또한 각 시나리오별 안전성 평가를 위하여 적용 가능한 해석 코드를 제안하였으며, 종합 성능 평가를 위한 보완점을 지적하였다. 추후 종합 성능 평가 시스템을 통해 최종적으로 도출될 안전성 평가 결과는 한국형 처분장 설계시에 활용될 수 있을 것으로 기대된다.

• Fire Science and Engineering
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• v.33 no.2
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• pp.85-97
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• 2019

Today, building constructions are becoming larger, higher, deeper, and complex to improve quality of human life and meet various needs. As a result, new design space for non - typically standardized space has been created, and targets for performance-based design are also becoming increased. An evacuation safety evaluation of performance-based design should be compared with ASET and RSET estimation so that the value of RSET does not exceed the value of ASET. However, there is a problem that it is difficult to secure the safety with using the performance-based design evaluation method currently in use, especially in case of the underground parking lot, because it has wide compartment area and various routes for evacuation. Therefore, in order to overcome these problems, this paper first investigates the simulation setting method of the performance-based design that is currently in use, and then conducts two fire simulations and three evacuation simulations for underground parking lots each time, so performs the evacuation safety evaluationin total six cases of situations. Here this paper analyzes the problem with comparative evaluation research and suggests the better solution for improved evacuation safety evaluation of performance-based design.

• Proceedings of the KIEE Conference
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• 2006.07b
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• pp.847-848
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• 2006

최근 안전인증 기술기준의 국제규격(IEC) 부합화에 따라 소형 퓨즈의 DC 시간/전류 특성(DC Time/Current characteristic, 이하 DC 용단특성)에 대한 시험이 중요한 성능평가항목으로 부각되고 있다. 특히 DC 용단특성을 시험하기 위해서는 규격에 적합한 DC 발생기 및 DC 용단시간도 정확하게 측정할 수 있는 시스템이 구축되어야 하므로, 그 성능 평가설비 또한 매우 중요하다고 할 수 있다. 본 논문에서는 안전기준 및 IEC 국제규격을 분석하고, 분석된 규격을 토대로 성능평가설비를 설계하여 국제적 수준의 시험기관 위상에 걸맞은 성능평가기술 기반을 구축하였다. 구축된 설비 및 개발된 성능평가기술은 향후 시험평가기술의 국제화에 중요한 역할을 할 것으로 기대된다.

• The Journal of Sustainable Design and Educational Environment Research
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• v.15 no.1
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• pp.11-18
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• 2016

The purpose of this study is to develop the evaluation model of school facilities in terms of seismic performance during safety education in the school field. This study is composed of four stages with a view to developing user oriented evaluation models that can be utilized during earthquake safety education on ceiling system. and First stage analyze the evaluation guidelines to find evaluation methods and items. Based on the items, site survey was conducted to derive the characteristics of seismic performance of domestic school buildings in terms of ceiling system. Third stage analyzes the seismic performance of ceiling system. Final stage is to derive recommendations based on the results.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.298-298
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• 2020

하천 혹은 그 인근에 설치된 시설물은 수문, 통문, 제방, 댐, 보, 배수펌프장, 상·하수도, 하구둑 등이 존재한다. 이러한 하천 시설물은 홍수나 가뭄 등 수해를 저감하는 역할을 한다. 그러나 많은 하천 시설물은 노후화, 기후변화, 하천환경변화 등으로 구조적 혹은 기능적 안정성의 저하가 우려되는 실정이다. 시설물 유형별 고령화율을 살펴보면, 댐, 하천, 상하수도 순으로 조사되었으며, 준공연수가 30년을 초과한 하천 시설물은 약 40%를 넘어섰다. 그럼에도 불구하고 하천시설물의 관리 구조는 시설물 설치단계까지만 치중되었으며, 이후 계획 재수립 단계까지의 평가 및 모니터링, 유지관리, 정보관리 등에 이르는 선순환 구조가 미흡한 실정이다. 시설물의 노후화에 따라 유지관리 비용이 증가하며, 대형사고로 이어질 수 있기 때문에 적절한 시기에 시설물 점검 및 유지보수가 매우 중요하다. 우리나라의 경우 시설물의 안전 및 유지관리에 관한 특별법에 따라 국가주요시설물은 안전점검을 실시하고 있으며, 시설물통합정보관리시스템(Facility Management System; FMS)에 안전등급을 제공하고 있다. 본 연구에서는 FMS의 하천 시설물 안전등급 현황을 기반으로 시설물의 효과적인 생애주기관리를 위해 하천 시설물의 성능평가모델을 제안하였다. 성능평가모델은 하천 시설물의 사용연수에 따른 안전등급의 예측이 가능하며, 관리자 측면에서 예산투입 등의 의사결정 시 활용이 가능할 것으로 판단된다.

• Journal of the Korean Institute of Gas
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• v.21 no.6
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• pp.81-87
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• 2017

SOFC(Solid Oxide Fuel Cell) is one of the high-temperature fuel cells, SOFC system and Stack has a high temperature operating Characteristics. These Characteristics cause a lot of trouble in the design of the system and selection materials, securing durability, and securing safety performance. Therefore, For Commercialization and Supply of SOFC, the development of safety performance assessment techniques and evaluation systems should go together. In this study, we analyzed the evaluation items of SOFC Safety performance standards and risk factors of the stack for design of stack safety performance evaluation system. Based on the analyzed data, the evaluation item was deducted for design of stack safety performance evaluation system. Through the results of this study, we expect to facilitate the supply of SOFC and contribute to a safe use environment.

• Proceedings of the KIEE Conference
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• 2006.07b
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• pp.717-718
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• 2006

최근 저압 기중차단기(ACB, Air Circuit Breaker)는 고압중전기 공인시험제도 및 저압전기기기 안전인증제도와 같은 강제인중 대상에서 제외되어 해당 성능에 대한 안전 사각지대에 놓여있다는 지적을 받아왔다. 본 논문에서는 현재의 ACB관련 규격 및 성능평가기술을 분석하고, 국제규격과의 비교 분석을 통하여 국제규격에 준하는 성능평가기술 및 규격을 제시하는 방안을 연구하였다. 특히 내년에 제정이 논의되고 있는 ACB관련 KS 규격의 제정 방향 및 KS 심사기준에 대한 진행방향 설정과 연구되어야할 성능평가기술을 제품성능 특성별로 제시하였다. 향후 본 논문의 성능평가기술 및 제안 방향이 KS규격 제정 및 활용에 중요한 근간을 제공할 것으로 기대한다.

• Journal of Energy Engineering
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• v.26 no.2
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• pp.50-63
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• 2017

Safety culture degradation signs in nuclear power plants with complex and diverse systems can lead to their equipments performance deterioration. If these signs are neglected, they become potential causes of accidents. Therefore, it is necessary to monitor safety culture in the point of view of organization and management as well as to evaluate safety performance of nuclear power plants. Therefore, This paper suggested a methodology to evaluate safety culture weakness contributing the accidents' root causes in the case accidents occur at nuclear power plants. After reviewing methodologies using at domestic and international industry, the methodology suitable for domestic nuclear power plants was determined.

• Journal of Navigation and Port Research
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• v.28 no.1
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• pp.1-8
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• 2004

The final goal of this research is to establish the relative dangerousness D/B for factors on seakeeping performance. This D/B is, essential to develope the seakeeping performance evaluation system built-on-ship. The system is composed of the apparatus for measuring a vertical acceleration to be generated by the ship's motions, computer for calculating the synthetic seakeeping performance index and monitor for displaying the evaluating diagram of navigational safety of ship. In this paper, a methodology on the establishment of the relative dangerousness D/B for factors on seakeeping performance is presented by a numerical simulations, playing an important role on the algorithm of the program for calculating the synthetic seakeeping performance index. Finally, It is investigated whether the relative dangerousness D/B can be realized an accurate values according to the loading conditions, weather conditions, wave directions and present ship's speed of a model ship.

• Journal of Korean Tunnelling and Underground Space Association
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• v.18 no.6
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• pp.525-533
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• 2016

The purpose of current tunnel maintenance system in South Korea is safety-based maintenance system for accident prevention, So it is difficult to conduct a strategic maintenance. The development of a new maintenance system can lead to effective investment of limited financial and it's effort is still in progress. In this study, to develop a performance-based assessment method, indexes for assessment are derived taking into account the safety, durability and serviceability. The indexes for performance-based assessment were selected by a literature analysis and a delphi survey. Then the importance among indexes were calculated by the AHP analysis.