• 대한안전경영과학회지
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• 제6권1호
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• pp.49-60
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• 2004

Industrial facilities are becoming more complex and various with rapidly developing technologies. A number of installations and equipments are increased to improve productivity, and they are operated under the condition of high temperature and pressure. They are continuously repaired, replaced or abolished because of the deterioration with time, but their repair and replacement are not easy for economical and environmental concerns. If possible, the deteriorating equipments should be inspected and repaired effectively considering the state of maintenance and preservation, economic efficiency, and safety. That's where RBI(Risk Based Inspection) fits in. Even if RBI technology has been known among specialists, there were no tools readily available and it was hard to practice and apply RBI in industrial inspection and safety management. In the development of the qualitative RBI, the overall algorithm adopted API-581 BRD. The qualitative RBI program was developed to search the appling process.

• 한국안전학회지
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• 제21권3호
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• pp.31-37
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• 2006

To apply easily the K-RBI program in domestic industries, an implemental procedure for K-RBI program was prepared. The K-RBI program had been developed, based on API-581 BRD. Therefore, through the usage of the developed K-RBI program and the implemental procedure, industries would have a benefit from reduced costs by modifying a frequency of an inspection efficiently. Also, the reliability of facilities would be maximized through improvement of an inspection method for facilities, considering its risk.

• 한국가스학회지
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• 제13권4호
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• pp.53-60
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• 2009

냉각수, 수증기 등과 같은 유틸리티를 사용하는 설비에서는 장치손상지역에 의한 사고 피해크기(COF)가 0의 값을 나타내고, 이로 인해 위험도가 0으로 나타난다. 따라서 본 연구에서는 위험기반검사(RBI)에서 장치손상지역에 의한 COF로부터 위험도를 산출하는 방법을 개선하여 재정적 손실에 의한 COF로부터 위험도를 산출하는 RBI 절차를 개발하였다. 그리고 장치손상지역과 재정적 손실에 의한 위험도로부터 검사주기를 동시에 산정하는 RBI 프로그램(KS-RBI Ver 3.1)을 개발하여 석유화학공정에 적용하였다. 그 결과, 재정적 손실에 의한 COF로부터 산출한 위험도는 장치손상지역에 의한 COF로부터 산출한 위험도 결과와 거의 유사하였다. 그러나 유틸리티를 사용하거나 고가의 설비에서는 장치손상지역에 의한 경우보다 재정적 손실에 의한 COF로부터 설비의 위험도를 보다 정확하게 산출할 수 있었다.

• 한국안전학회지
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• 제19권4호
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• pp.60-68
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• 2004

Consequence analysis of flammable materials that affect to a risk of facilities was studied at the risk based inspection using API-581. We found that consequence areas (damage area of equipment and fatality area) by release accident of flammable materials showed high value for the case of liquid phase and auto-ignition likely, and that consequence areas of flammable gases decreased as temperature increased and the pipe diameter and pressure decreased at continuous release.

• 생약학회지
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• 제48권3호
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• pp.237-242
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• 2017

In this study, to investigate of safety for Benzo(a)pyrene in medicinal herb, 8 kinds of selected commercial herbal medicines (Rehmanniae Radix, Rehmanniae Radix Preparata, Amomi Tsao-Ko Fructus, Cimicifugae Rhizoma, Cyperi Rhizoma, Magnoliae Cortex, Scutellariae Radix, Scrophulariae Radix) were analysed using the high performance liquid chromatography with fluorescence detector and assessed the health risk. The levels of benzo(a)pyrene were from non-detection to $28.1{\mu}g/kg$, and the average was $3.6{\mu}g/kg$. Based on a nationwide survey of the consumption of medicinal herb by the Korean population, we estimated the potential risk from the ingestion of benzo(a)pyrene. The estimated daily intake of benzo(a)pyrene was 1.6 ng/kg b.w./day for group only know the daily average intake of medicinal herb. The MOE (margin of exposure) of benzo(a)pyrene for estimate of health risk was $1.93{\times}10^5$. Therefore, health risk from benzo(a)pyrene through intake of herbal medicine was considered negligible.

• Corrosion Science and Technology
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• 제8권3호
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• pp.119-125
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• 2009

Corrosion assessment has a number of uses but the use considered here is as a precursor to Risk-Based Inspection (RBI) planning. Systematic methods consisting of technical modules of RBI program were used to assess the effect of specific corrosion mechanism on the probability of failure in equipments of petrochemical plants. Especially in part of the damage and corrosion assessment, screening step involved evaluating the combinations of process conditions and construction materials for each equipment item in order to determine which damage mechanisms are potentially active. For general internal corrosion, either API 510 or API 570 was applied as the damage rate in the calculation to determine the remaining life and inspection frequency. In some cases, a measured rate of corrosion may not be available. The technical modules of RBI program employ default values for corrosion, typically derived from published data or from experience with similar processes, for use until inspection results are available. This paper describes the case study of corrosion and damage assessment by using RBI methodology in petrochemical plant. Specifically, this paper reports the methodology and the results of its application to the petrochemical units using the $KGS-RBI^{TM}$ program, developed by the Korea Gas Safety Corporation to suit Korean situation in conformity with API 581 Codes.

• 한국안전학회지
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• 제17권4호
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• pp.110-118
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• 2002

During the last ten years, the need has been increase for reducing maintenance cost for aged equipments are ensuring safety, efficiency and profitability of petrochemical and refinery plants. American Petroleum institute(API) developed a code, API 581 for proposing standard procedures of risk based inspection. Even though the API 581 code covers general RBI procedures, there must be some limitations. In this study, a semi-quantitative assessment algorithm for RBI based on the API 581 code was reconstructed for developing an RBI software. The user-friendly realRBI software is developed with a module for evaluation semi-quantitative risk category using the potential consequence factor and the likelihood factor. Also, inspection planning module for inspection time and inspection method for equipments are included.

• 한국산업융합학회 논문집
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• 제25권5호
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• pp.811-816
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• 2022

Even though continuous management and supervision of reinforcement of policies to safeguard accidents at workplace and work sites were implemented. Accident prevention activities such as inspection and diagnosis are urgently required to induce a preliminary investigation to identify the risk factors for each type of work, before the work task to eliminate risks at the worksites. Since safety inspections at work sites were generally conducted through visual inspections, the results of safety inspections may vary depending on the findings and proficiency of the safety officers. The results of those inspections may have loopholes to prevent potential accidents at work. Therefore, the purpose of this study was to develop a risk identification checklist that can effectively perform safety inspections to prevent accidents at work sites. This study initially analyzed the previously developed accident checklist to identify current complications and issues in safety checklists. Based on the findings of major industrial accidents over the past three years, the relationship between accident, workplace, and work type were analyzed refereeing the safety inspection standards. A risk recognition-checklist was developed to provide basic data on identifying risk factors, and inspection guidance at work sites. To prepare for potential accidents by identifying and taking countermeasures to mitigate the high risk and serious accidents at sites by the guidelines of the checklist. The developed inspection checklist has been practically used by experts at work sites to perform safety inspections, and it has been verified its suitability, and feasibility, to prevent or mitigate workplace accidents, including securing the safety and health of field workers. The role of the developed safety checklist has been considered effective at worksites.

• 대한기계학회논문집A
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• 제37권10호
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• pp.1291-1296
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• 2013

위험도 평가 기술은 주로 플랜트의 많은 운영설비 중 대형사고나 피해를 유발할 수 있는 위험설비를 선별하는 목적으로 개발되었다. 설비의 위험도를 평가하여 위험도의 크기에 따라 순위를 정하고 이 순위를 기준으로 정비자원을 투입하는 순서나 정비작업의 시급성을 판단한다. 위험도란 고장이 발생할 확률과 고장이 발생할 경우에 수반되는 파손피해의 곱으로 정의된다. 위험도 평가방법으로는 간단한 손상 및 고장 평가기법을 이용하여 기본적인 고장확률 데이터를 확보하고 정성적인 문진을 통해 이를 보완하는 준 정량적 방법이 많이 사용되고 있다. 본 논문에서는 준 정략적 평가를 이용하여 석탄화력발전소의 보일러설비에 대한 위험도 평가를 수행하고 이를 기반으로 설비 별차기 정비주기를 선정하였다.

• 한국에너지공학회:학술대회논문집
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• 한국에너지공학회 2010년도 춘계학술 발표회
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• pp.176-176
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• 2010

현재 국내 에너지 설비의 안전에 대한 관심이 고조되면서 안전 관련 기술(수명, 정비, 사고 관련 모든 기술)의 개발, 도입이 활발히 이루어지고 있다. 하지만, 많은 경우 기반기술 연구에 집중되어 있어 이를 융/복합하여 현장에 활용할 수 있는 응용기술 개발이 요구되고 있다. 에너지 플랜트 설비(발전, 석유화학 및 정유 플랜트 등)의 최적 안전 관리를 위해서는 설비의 위험도(risk)에 근거한 관리가 가장 이상적이며, 이를 위해서는 기준이 될 수 있는 위험도 기반 검사(risk-based inspection, RBI) 가이드라인과 사용자가 쉽고 효율적으로 위험도를 관리할 수 있는 도구 즉 시스템이 필요하다. 본 연구에서는 위험도 기반 검사 가이드라인과 IT(information technology) 기술을 융/복합하여 사용자가 쉽고 효율적으로 사용할 수 있는 GUI(graphic user interface) 기반의 위험도 기반 설비 관리 시스템을 연구 개발 하였다.