• 제목/요약/키워드: plant safety

검색결과 2,574건 처리시간 0.029초

원자력발전소 건설공사의 공종별 위험도에 관한 연구 (A Study on the Risk Level of Work Types in Nuclear Power Plant Construction)

  • 이종빈;이준경;장성록
    • 한국안전학회지
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    • 제28권3호
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    • pp.95-99
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    • 2013
  • The goal of this study was to investigate some significant factors to influence level of safety at plant construction field and analyze degree of risk by work classification. Currently, there are lots of construction fields for the nuclear power plant for electricity generation, and our government also planned constructing more nuclear power plant in near future. However, much of the safety literature neglected the degree of risk factors on the plant construction field. Safety managers participated in the brainstorming session for drawing decision criteria of the degree of risk (i.e., significant factors). Then, they were asked to answer a structured questionnaire which was developed for drawing most important factors. Finally, the analytic hierarchy process (AHP) was used to analyze level of risk by work classification. The following results were obtained. First, total twelve factors judging degree of risk were found in the brainstorming session. Second, the questionnaire showed four significant factors, including number of workers, working environments, skill of craft and accident experience. Third, the results of AHP showed Architecture work is the most dangerous work among 6 work types. The results could be used to reduce degree of risk in construction field of the nuclear power plant.

포항지진에 대한 원자력발전소 구조물 및 기기의 지진응답분석 (Seismic Response Analysis of Nuclear Power Plant Structures and Equipment due to the Pohang Earthquake)

  • 임승현;최인길
    • 한국지진공학회논문집
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    • 제22권3호
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    • pp.113-119
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    • 2018
  • The probabilistic seismic safety assessment is one of the methodology to evaluate the seismic safety of the nuclear power plants. The site characteristics of the nuclear power plant should be reflected when evaluating the seismic safety of the nuclear power plant. The Korea seismic characteristics are strong in high frequency region and may be different from NRC Regulatory Guide 1.60, which is the design spectrum of nuclear power plants. In this study, seismic response of a nuclear power plant structure by Pohang earthquake (2017.11.15. (KST)) is investigated. The Pohang earthquake measured at the Cheongsong seismic observation station (CHS) is scaled to the peak ground acceleration (PGA) of 0.2 g and the seismic acceleration time history curve corresponding to the design spectrum is created. A nuclear power plant of the containment building and the auxiliary buildings are modeled using OPENSEES to analyze the seismic response of the Pohang earthquake. The seismic behavior of the nuclear power plant due to the Pohang earthquake is investigated. And the seismic performances of the equipment of a nuclear power plant are evaluated by the HCLPF. As a result, the seismic safety evaluation of nuclear power plants should be evaluated based on site-specific characteristics of nuclear power plants.

PSO 최적화 기법을 이용한 Ethylene Oxide Plant 배치에 관한 연구 (The Research of Optimal Plant Layout Optimization based on Particle Swarm Optimization for Ethylene Oxide Plant)

  • 박평재;이창준
    • 한국안전학회지
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    • 제30권3호
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    • pp.32-37
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    • 2015
  • In the fields of plant layout optimization, the main goal is to minimize the construction cost including pipelines as satisfying all constraints such as safety and operating issues. However, what is the lacking of considerations in previous researches is to consider proper safety and maintenance spaces for a complex plant. Based on the mathematical programming, MILP(Mixed Integer Linear Programming) problems including various constraints can be formulated to find the optimal solution which is to achieve the best economic benefits. The objective function of this problem is the sum of piping cost, pumping cost and area cost. In general, many conventional optimization solvers are used to find a MILP problem. However, it is really hard to solve this problem due to complex inequality and equality constraints, since it is impossible to use the derivatives of objective functions and constraints. To resolve this problem, the PSO (Particle Swarm Optimization), which is one of the representative sampling approaches and does not need to use derivatives of equations, is employed to find the optimal solution considering various complex constraints in this study. The EO (Ethylene Oxide) plant is tested to verify the efficacy of the proposed method.

화학 사고 예방을 위한 Plant 건설 종사자의 Tool Box Meeting이 재해예방행동에 미치는 영향 (Effect of Tool Box Meeting of Plant Construction Workers on Disaster Prevention Behavior for Chemical Accident Prevention)

  • 오일환;김상길;조규선
    • 산업진흥연구
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    • 제8권4호
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    • pp.47-60
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    • 2023
  • 본 연구의 목적은 건설종사자의 TBM을 통한 건강신념요인이 재해예방행동에 미치는 영향에서 자기효능감과 안전의식의 매개효과를 파악하고자 하였다. 이를 위해 건강 관련 행동을 예측하고 설명하기 위해 개발된 사회심리학적 건강 행동 변화 모델인 건강신념이론의 주요 변수들을 적용한 연구모형을 제시하였다. 본 연구의 연구모형을 실증적으로 검증하기 위해 화학 Plant 건설 TBM을 활용한 경험이 있는 건설종사자들을 대상으로 설문 조사를 하였다. 연구결과 첫째, 화학 Plant 건설을 활용한 건설종사자의 지각된 심각성은 자기효능감과 안전의식에 유의미한 영향을 미치는 것으로 나타났다. 둘째, 화학 Plant 건설을 활용한 건설종사자의 지각된 개연성은 자기효능감과 안전의식에 유의미한 영향을 미치는 것으로 나타났다. 셋째, 화학 Plant 건설을 활용한 건설종사자의 지각된 장애는 자기효능감과 안전의식에 유의미한 영향을 미치는 것으로 나타났다. 넷째, 화학 Plant 건설을 활용한 건설종사자의 지각된 이익은 자기효능감과 안전의식에 유의미한 영향을 미치는 것으로 나타났다. 본 연구의 목적은 TBM을 통해 화학 Plant 건설종사자의 재해예방행동으로 중대 재해를 감소시키고자 한다.

플랜트 특성에 따른 VR기반 안전훈련 시스템 구축 방법 제시 (Proposal of Construction Method of VR-based Safety Training System According to Plant Characteristics)

  • 이재용;박찬국
    • 한국가스학회지
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    • 제23권5호
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    • pp.44-51
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    • 2019
  • 플랜트 안전훈련을 가상환경 하에서 진행하는 시스템을 구축하였을 때 고려해야 하는 시스템 구성요소와 구현 방법을 플랜트 특징에 따라서 구분하였다. VR기반의 안전훈련 시스템을 구성할 때 플랜트 특징에 따라서 필요한 구성요소가 다를 수 있으며, 대상 플랜트에 따라서 구축하는 기본적인 시스템 구성요소를 제시하였다. 제시하는 시스템의 구성을 뒷받침하기 위해서 비교적 간단한 설비인 도시가스 정압기 안전훈련 시스템을 구현하였고, 보다 복잡하고 큰 규모의 플랜트를 설명하기 위해서 석유화학 플랜트의 안전훈련 시스템 구현을 예로 들었다. 이를 통해서 적용하고자 하는 플랜트에서 적절한 VR 기반 플랜트 안전훈련 시스템 구성의 가이드라인을 제시한다.

사전예방을 위한 설비안전정보시스템 개발 (Development of Plant Safety Information Management System for Preventive Maintenance)

  • 김태환;양광모;최성희;강경식
    • 대한안전경영과학회지
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    • 제7권2호
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    • pp.1-12
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    • 2005
  • TPM(Total Productive Management) that is enforcing introducing more than $80\%$ in domestic manufacturing industry is using total plant efficiency by the evaluation index, and as a result, can see a lot of examples that plant productivity is increased. This study's purpose centers total productive management activities that is management system for total plant efficiency's maximization, plant information system that total productive management activities factor that is enforcing in manufacturing industry can develop evaluation model that can evaluate qualitative activities by quantitative activities in process that maximize total plant efficiency wishes to do design.

중소기업 화학 사업장의 안전관리 실태 조사 분석 (A Research and Analysis on the Actual Condition of Safety Management at Small-Medium Chemical Plant)

  • 이태우
    • 대한안전경영과학회지
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    • 제1권1호
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    • pp.183-195
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    • 1999
  • Most of chemical plant are using toxic and dangerous materials, inflammable and poisonous. There are many accidental dangers by escaping of fire, explosive and poisonous materials in case of high temperature and pressure. The accidents lead to taking employer's and local people's life and environmental contamination. Therefore, 27 small-medium chemical plant, which size is 30 ∼ 200 employees out of safety management agent ill the area of A was selected in this study. The problems of safety management and several countermeasures at the chemical plants was indicated through the analyzed data. Prior to this analysis, top managers' concerns, equipment maintenance for the safety management are needed. For the future, calamity prevention countermeasures by industrial disaster analysis are needed and active safety management programs are investigated for the industrial disaster prevention and productivity enhancement at the chemical plant.

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중소기업 화학 사업장의 안전관리 실태 조사 분석 (A Research and Analysis on the Actual Condition of Safety Management at Small-Medium Chemical Plant)

  • 이태우;강경식
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 1999년도 추계학술대회
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    • pp.97-108
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    • 1999
  • Most of chemical plant are using toxic and dangerous materials, inflammable and poisonous. There are many accidental dangers by escaping of fire, explosive and poisonous materials in case of high temperature and pressure. The accidents lead to taking employer's and local people's life and environmental contamination. Therefore, 27 small-medium chemical plant, which size is 30∼200 employees out of safety management agent in the area of A was selected in this study. The problems of safety management and several countermeasures at the chemical plants was indicated through the analyzed data. Prior to this analysis, top managers' concerns, equipment maintenance for the safety management are needed. For the future, calamity prevention countermeasures by industrial disaster analysis are needed and active safety management programs are investigated for the industrial disaster prevention and productivity enhancement at the chemical plant.

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안전과 생산성을 고려한 설비평가의 관리체계 설계 (A study on Management System Design of Plant Evaluation for Safety and Productivity)

  • 조용욱;서장훈;양광모
    • 대한안전경영과학회지
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    • 제10권1호
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    • pp.197-204
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    • 2008
  • This study's purpose centers plant management activities that is management system for total plant efficiency's maximization, plant evaluation system that production and safety management activities factor that is enforcing in manufacturing industry can develop evaluation model that can evaluate quantitative activities in process that maximize productivity and safety efficiency wishes to do design.