• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 추계학술대회 논문집
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• pp.551-555
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• 1997

IJnder earthquake excitations, the hydrodynamic pressure exerted on the flat bottom vertical-cylindrical oil storage tank walls produces overturning moment which may cause either a failure of the anchors or a buckling of the tank shell near its base. The basis for establishing design loads due to hydrodynamic pressure is described including seismic zone risk map in Korea. zone coefficients and the essential facilities factor. This procedure for calculating applied compressive stress on the shell base subjecting to seismic load and for estimating the allowable buckling stress is described. And seismic design program for the tanks is presented.

• 한국안전학회지
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• 제21권1호
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• pp.86-91
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• 2006

Oil spills caused by the accidents have been occurred from house and factory waste, grounded tanker, the rupture of storage tank and oil pipelines, the deterioration of various industrial facilities, etc. Many oil spills result in contamination of shorelines and workplace. Fire and explosion may happen from these spills. There are several technologies used for clean-up application, which include use of oil dispersing agents, absorbents, solidifiers, booms and skimmers by physical, chemical, and biological methods. Methods for oil spill clean-up operation are classified into the absorption type, gel type and self-swelling type. Porous materials with oil absorptive properties are classified into micropore, mesopore, and macropore depending on their pore sizes. Recently, new porous materials with smaller size have been developed, but the selective oil absorption in water-in-oil interface demonstrates the macro pore size. In this study oil absorption effects were evaluated using the organic porous materials with a complex function of gel type and swelling type. Samples were subjected to analysis by FT-IR spectroscopy and were characterized in terms of gel formation and morphologies. Oil sorption capacity, pressure retention force and gel strength were also measured. From these results, the physicochemical reactivity before and after gelation was verified and the industrial applications of clean-up operation were suggested.

• 무역학회지
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• 제44권6호
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• pp.105-118
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• 2019

In the past two decades, due to the rapid fluctuations in the oil supply and demand in Northeast Asia as well as a surge in oil prices in the early 2000s, Korea has been developing the Northeast Asia Oil Hub project as a national project. This project was promoted based on the policy consideration that the nation's energy security and regional development can be promoted by establishing an oil hub in Northeast Asia that can eventually replace Singapore as East Asia's oil logistics hub. Following the construction of a large-scale oil storage facility in Yeosu in 2013, the main project in Ulsan has suffered many difficulties due to environmental changes such as the supply and demand of oil and political factors. The survey, which investigated the performance, problems, and prospects of the oil hub project, illustrates that scores of all sectors are of average level. In terms of performance and prospects, policies such as facility investment, law, and system improvement were determined to be rather high while operational areas such as value-added activities, profitability, and marketing activities were perceived as having more serious problems by respondents. In conclusion, despite the strong potential of Korea's oil hub based on its geographical location, facilities, and oil product capacity, there are problems related to policies, institutions, and investment. In the future, the oil hub business should be reviewed by considering environmental factors, and a drastic improvement plan for attracting foreign investors and oil traders should be established.

• 해양환경안전학회지
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• 제16권3호
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• pp.275-285
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• 2010

2009년 말 기준의 국내 해양시설 신고 현황을 지역별 및 시설 종류별로 분석하고 국가차원의 관리방안을 제안하였다. 여수청에 신고한 시설이 8가지 종류로 가장 다양하였으나 포항청, 대산청 및 제주해양관리단에 신고한 시설이 각각 3가지 종류에 불과하였다. 기름 및 유해액체물질 저장시설은 모든 지방청의 신고 실적이 있고 시설의 수도 가장 많은 종류이며, 여수청과 마산청이 각 38개소로 공동 1위를, 평택청이 11개소로 최하위를 차지하였다. 오염물질저장시설은 마산청이 4개소, 동해청과 목포청이 각 2개소, 여수청, 군산청 및 평택청이 각 1개소였으며 나머지 지방청에는 신고 실적이 없었다. 선박건조 수리 해체시설은 모든 지방청의 신고 실적이 있는 종류이며, 전국 시설(조선소)의 45%가 마산청과 부산청 관할의 남해 동부해역에 집중되었다. 하역시설은 부산청과 목포청이 각 3개소, 대산청이 1개소였으며 나머지 지방청은 신고 실적이 없었다. 폐기물저장시설은 울산청이 5개소, 군산청이 4개소, 인천청이 2개소, 여수청이 1개소였으며 나머지 지방청에는 신고 실적이 없었다. 취수 배수시설은 전국의 65%가 포항지역과 목포지역에 집중되었고, 유어장은 전국의 78%가 마산지역에 집중되었다. 그 밖의 시설은 동해청이 4개소, 마산청이 3개소, 여수청과 평택청이 각 2개소, 인천청과 울산청이 각 1개소였으며 나머지 지방청에는 신고 실적이 없었다. 종합해양과학기지는 제주해양관리단이 3개소, 여수청, 울산청 및 군산청 각각 1개소였으나 나머지 지방청에는 신고 실적이 없었다. 해양시설에 대한 국가차원의 관리방안으로는 지방청별 여건을 고려한 관리, 시설 종류별 특성을 고려한 관리, 관계 법령 및 규정의 개정, 해양시설 종류별 이행사항 숙지 및 준수, 국가적 견지의 적극적 관리조치 등을 제안하였다.

• 한국화재소방학회논문지
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• 제30권6호
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• pp.48-56
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• 2016

지난 2014.4.4.(금)14:50, 울산소재 대형 옥외저장탱크에 원유 충전 중 누출사고가 발생하여 사고현장에 긴급구조통제단이 가동됐다. 사고업체, 소방기관 및 유관기관이 지휘소에 모여 대응과 수습방안을 논의한 뒤 전원차단 및 시설작동금지, 가스농도 측정, 유증기 발생 억제, 누출 원유를 타탱크와 공정과정으로 이송, 해양오염 방지조치 등의 협업체계를 구축하여 수습하였다. 이 수습과정에서 유증기 발생방지와 점화원 차단을 가장 중시하여 조치함으로써 사고업체와 소방기관이 가장 우려했던 폭발과 화재사고는 발생하지 않았다. 이에 본 연구는 일반적인 재난의 긴급구조통제단과는 달리 운영해야 할 옥외탱크의 유류 누출, 폭발 및 화재 시의 긴급구조통제단 운영체계개선을 제시하고, 옥외탱크 유류 누출로 인한 폭발과 화재사고로 전이했을 경우를 가정한 방유제 바닥 종류에 따른 화염 확산속도와 연소시간을 실험 비교하였다. 또한, 소방차 포 노즐의 방사각도와 펌프압력에 따른 방사거리와 포의 도포면적을 실험 분석하여, 이후 옥외저장탱크의 유류 누출로 인한 폭발과 화재 시를 대비한 효과적인 현장대응과 수습방안을 제시하는 데 중점을 두었다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2000년도 추계학술대회논문집
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• pp.307-310
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• 2000

Recently, the demand for the Floating, Production Storage, and Offloading facility(FPSO) which has some economic and technical advantages, has increased in offshore oil production areas. The basic characteristics of a 343,000 DWT class FPSO which is being built in Hyundai Heavy Industries and shall be installed in offshore Angola, is almost same as that of oil carriers. However, she do not have self-propulsion system, but has additional facilities for oil production and positioning system. Main noise source contributing to the cabin noise of the accommodation, are classified into the machine in the engine room and the deckhouse, HVAC system, and the topside equipments. In general, the noise regulation for the offshore structure is much severer than that of the common commercial ships and the maximum acceptable sound pressure level of cabins is specified in 45dB(A). This paper describes the procedure of noise analysis along with its results. Noise analysis has been carried out for the case of emergency diesel generator running condition and the case of normal production condition and the results has been compared with the measurement results of the first case. Based on the results, proper countermeasures to reduce excessive noise level has been applied considering the characteristics of sources and receiver spaces and can be satisfied the specifications at all spaces.

• 대한안전경영과학회지
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• 제19권3호
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• pp.1-9
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• 2017

In the industrial field, various type of fuel have been used for product processing facilities. Recent for 10 years, the usage of natural gas (NG) was gradually increased. Because it has many merits; clean fuel, no transportation, storage facility and so on. There are common safety concept that strict explosion protection approaches are needed for facilities where explosive materials such as flammable liquid, vapor and gases exist. But some has an optimistic point of view that the lighter than air gases such as NG disperse rapidly, hence do not form explosion environment upon release into the atmosphere, many parts has a conventional safety point of view that those gases are also inflammable gases, hence can form explosion environment although the extent is limited and present. In this paper, the heating equipments (Hot Oil Heater) was reviewed and some risk management measures were proposed. These measures include hazardous area classification and explosion-proof provisions of electric apparatus, an early gas leak detection and isolation, ventilation system reliability, emergency response plan and training and so on. This study calculates Hazardous Area Classification using the hypothetical volume in the KS C IEC code.

• 수산해양기술연구
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• 제37권1호
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• pp.65-70
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• 2001

바다모래에 의해 뒷채움된 지하연료저장탱크용 연강재의 부식전류밀도, 개로전위, 전식거동 및 연간부식률에 관하여 연구한 결과 다음과 같은 결론을 얻었다. 1) 습바다모래 중에서 비저항이 감소할수록 개로전위는 비전위화되고, 부식전류밀도는 높게 배류된다. 2) 습바다모래의 비저항이 감소할수록 인가전위 부가에 의한 부식전류밀도는 자연전위에서의 부식전류밀도보다 급격히 증가한다. 3) 습바다모래 중에서 비저항이 감소할수록 연간부식률은 선형적으로 증가함으로 지하연료저장탱크에 바다모래로 뒷채움하는 경우 습기가 유입하면 지하연료저장탱크의 부식성은 민감할 것으로 판단된다.

• 한국농공학회논문집
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• 제49권6호
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• pp.55-62
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• 2007

Actual states of energy utilizations were investigated and analyzed on three representative rural villages in Chungcheongnam-Do. Rural residents were almost using the ondol boiler as a heating facility and oil(diesel, kerosene) and electricity(night thermal-storage power service) as a heating energy. There were a few households using briquette or firewood in a fuel hole with Korean hypocaust. Most of their cooking facilities were gas ranges using LPG. The most popular hot-water supply system was an oil boiler and the next was an electricity boiler. The amount of energy use in a rural household generally showed 20,000 to 40,000 won/month of the electric power rate, 400 to 800 liter/year of the oil and 60 to 120 kg/year of the LPG. Prompt measures should be taken to promote the spread of new and renewable energy such as solar heat, biomass and wind power, etc.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 추계학술대회논문집
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• pp.550-553
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• 2004

Recently, the demand for the Floating, Production, Storage, and Offloading facility (FPSO) which has some economic and technical advantages, has increased in offshore oil production areas. The 36,8000 DWT class FPSO was built in Hyundai Heavy Industries and will be installed in Offshore Angola. She dose not have self-propulsion system, but has additional facilities for oil production and positioning system. Main noise sources are contributing to the cabin noise of the accommodation are classified into three classes such as the machinery in the engine room and the deckhouse, HVAC system, and the topside equipments. In general, the noise regulation for the offshore structure is severer than that of the cargo ship and acceptable noise limit of cabin is specified as 45 dB(A). This paper describes the procedure of noise analysis, the countermeasures of noise control, and the measurement results of the quay trial. In order to minimize the noise levels, careful attention have to be paid by the special committee of experts from the initial design stage to the delivery. Proper countermeasures, considering the characteristics of sources and receiver spaces, were applied from the noise prediction and various experiment results. Finally, this ship was successfully delivered with excellent noise properties. The technology to minimize the noise levels for FPSO has been established throughout the construction of this ship.