• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2005년도 춘계학술논문발표회 논문집
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• pp.94-98
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• 2005

• Korean Chemical Engineering Research
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• 제58권3호
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• pp.356-361
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• 2020

프로필렌은 석유화학제품의 제조 시 기초 유분으로 산업 공정에서 널리 사용되고 있으며, 새로운 물질을 제조하기 위하여 200 ℃ 이상의 온도에서 합성되고 있다. 그러나 프로필렌은 인화성 가스로써 화재 및 폭발의 위험성이 존재하므로, 이를 방지하기 위하여 불활성 가스 중 가격이 저렴하고 공기 중 가장 많이 존재하는 질소를 주입하여 사용한다. 본 연구에서는 프로필렌-질소-산소를 사용하여 온도 200 ℃에서 압력의 변화(0.10 MPa, 0.15 MPa, 0.20 MPa, 0.25 MPa)에 따른 실험적 연구를 수행하였다. 산소농도가 21%일 때 압력이 0.10 MPa에서 0.25 MPa로 상승할수록 폭발 하한계는 2.2%에서 1.9%로감소하였으며, 폭발상한계는 14.8%에서 17.6%로증가하였다. 또한최소산소농도는 10.3%에서 10.0%로 감소하여 압력이 증가할수록 폭발 범위가 넓어져 위험성이 증가하였다. 폭발압력은 압력이 0.10 MPa에서 0.25 MPa로 상승할수록 1.84 MPa에서 6.04 MPa로 증가하였으며, 최대 폭발압력상승속도는 90 MPa/s에서 298 MPa/s로 크게 증가하였다. 고온 및 고압에서는 폭발의 위험성이 증가하므로 프로필렌을 사용하는 사업장의 폭발사고 예방을 위한 기초자료를 제공하고자 한다.

• 한국가스학회지
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• 제4권1호
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• pp.69-76
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• 2000

BLEVE로 인한 위험을 평가하기 위한 프로그램, BLEVE ESTIMATOR를 이용하여 온도에 따른 폭발량과 Flashing mass를 계산하였고, 부천 가스충전소의 사고를 모델로 피해를 예측하였으며, 상용프로그램인 Dupont의 SAFER 프로그램과 비교하였다. 폭발량과 Flashing mass는 폭발온도의 증가에 따라 지수함수로 증가하였으며, Propane이 n-Butane보다 상대적으로 높게 나타났다. 용기의 온도, 압력, 충전비가 높을수록 Overpressure가 높게 나타났다.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2008년도 춘계학술대회논문집
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• pp.220-223
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• 2008

A test facility to measure the performance of a KM(Kick Motor) is constructed, and prediction of blast wave propagation over the facility is performed to check if the safety of test personnel in MCC(Main Control Center) can be guaranteed even for the most severe explosion. Assuming that the initial explosion energy is contained in a sphere under the pressure of 500, 1000, 1500 psi, respectively, the radius of the sphere is determined for each pressure to set the mass of contained explosion gas to 35 kg. The material properties of explosion gas are set to be the ones of KM propellant combustion gas under normal condition. To reduce the effort and time required for a complex three-dimensional modeling, the flowfield is approximated to axismmetry. Calculations are performed for all three initial pressure conditions, and the analysis of the result is given for 1500 psi which is expected to be the worst case. The maximum pressure is 3.5 psig while the minimum pressure is -1.2 psig on the outer wall of MCC, and the maximum pressure difference between the inner and outer walls of protection wall amounts to 3.0 psi.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1994년도 하계학술대회 논문집 A
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• pp.110-113
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• 1994

In the hazardous areas where explosive substances in the form of gases, vapor or mists exist, electrical apparatus and installations must be of explosion-proof construction to prevent or limit the danger of the ignition of potentially explosive atmosphere. In Korea, six types of protection have been specified in the government regulations at present: flameproof enclosure, pressurization, oil immersion, increased safety, intrinsic safety, and special types. If electrical apparatus are made of explosion-proof construction in a way other than five above-mentioned types, and their performance is tested and approved by the reponsible authorities, they may be categorized as special type apparatus. In this paper, we introduced a special type of explosion-proof electrical apparatus, called non-incendive type, and presented its constructional requirements. We also investigated evaluation methods of non-incendive type apparatus to assure the explosion-proof performance, and proposed a new classification method of hazardous areas using probabilistic concept.

• 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.

• 대한인간공학회지
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• 제20권3호
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• pp.61-76
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• 2001

This study is for analyzing the explosion accidents in the tunnels, roads, subways, streets and various kinds of building construction area with the use of Fault Tree Analysis(FTA). based on the police Department and Guns & Explosives Safety Technology Association's researching materials. the explosion accidents have been investigated and analyzed between 1988 and 1977. As the result, we can find out that the majority of the explosion accidents in Korea is the accidents by flown stones(45.7%), like in Japan. So we make the research chart which is needed for analyzing the explosion accident, and then analyze these accidents systematically. using the investigation codes of the industrial accidents. After that, the FTA was performed on the accidents by flown stones. They result fromm non-observance of the safety rules, and lees knowledge of the safety and so on. Moreover several causes are combined and then the accidents are apt to happen. So according to the results of this study, for the protection of the explosion accidents, the specialized safety education is badly needed and the enough investigation of the places before the work along with the management for safety in working must be planned.

• 한국가스학회지
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• 제22권5호
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• pp.38-45
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• 2018

LPG충전소 내에서 발생하는 주요 사고는 제트화재, 풀화재, 증기운 폭발로 구분된다. 방호벽을 충전소 내에 설치하면, 제트화재 시나리오에 대해서는 복사열로 인한 피해를 경감할 수 있고 풀화재 시나리오에 대해서는 풀의 확장을 제한하는 효과를 얻을 수 있다. 또한 증기운 폭발 시에는 증기운의 확산과 폭발과압으로 인한 인명피해를 경감하는 효과를 얻을 수 있다. 본 연구에서는 제트화재, 풀화재, 증기운 폭발 등 LPG충전소에서 발생 가능한 사고 시나리오별로 방호벽의 피해경감 정도를 평가할 수 있는 방법을 제안하였으며, LPG충전소 내 방호벽의 효과성에 대해 사례연구를 수행하였다. 이를 통해 제트화재와 증기운 폭발 발생 시 방호벽 뒤에 위치한 수용체의 사망확률을 효과적으로 줄일 수 있다는 것을 보여준다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 가을 학술논문 발표대회
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• pp.203-204
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• 2022

This study reviewed the impact resistance properties according to the thickness of concrete as part of a research on the protection technology for high-velocity projectile that may occur during an explosion of small green energy facilities such as a hydrogen station and an energy storage system.

• 한국안전학회지
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• 제35권1호
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• pp.1-11
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• 2020

Article 325 (Prevention of Fire Explosion due to Electrostatic) of the Rule for Occupational Safety and Health Standard specifies that in order to prevent the risk of disasters caused by static electricity, fire, explosion and static electricity in the production process, However, in order to do this, it is absolutely necessary to use a pre-detection technology and a detector for antistatic discharge prediction, which is a precautionary measure by static electricity in a fire / explosion hazard place, but in Korea, And there is no technical standard for the application of the technology of the explosion proof structure of the related equipment. Research methods include domestic and overseas electrostatic discharge detection technology and literature investigation of related equipment explosion proofing technology, domestic and foreign electrostatic discharge detection device production and use situation investigation, advanced foreign technology data analysis and benchmarking. In particular, we sought to verify the results of empirical experiments using electrostatic discharge detection technology through sample purchase and analysis of related major products, development of optimization technology through prototype production, evaluation, and supplementation, and expert knowledge through expert consultation. The results of this study were developed and fabricated two prototypes of electrostatic discharge detector based on the technology / standard related to electrostatic discharge detection technology in Korea and abroad through development of electrostatic discharge detection technology and development and production of detector. In addition, based on the development of electrostatic discharge detection technology, we developed an intrinsic safety explosion proof ib class explosion proof technology applicable to the process of using and handling flammable gas and flammable liquid vapor and combustible dust. In the case of the over voltage and minimum voltage are supplied to the explosion-proof structure ESD detector, check the state of the circuit and the transient and transient currents generated by the coil and capacitor elements during the input and standby of the signal pulse voltage. Explosion-proof equipment-Part 11: Intrinsically safe explosion proof structure The comparative evaluation with the reference curve in Annex A of "i" confirms that the characteristics of the intrinsically safe explosion protection structure are met.