• 한국터널지하공간학회 논문집
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• 제24권6호
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• pp.659-677
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• 2022

수소는 차세대 에너지원으로 부각되고 있으며, 수소차(FCEV)개발 및 보급이 급속도로 이루어질 것으로 예상된다. 이에 수소차 사고에 대응하기 위한 대책이 요구되고 있으며, 수소차의 안전성에 대한 연구가 활발히 진행되고 있다. 본 연구에서는 기존 실험 및 연구자료에 대한 분석을 통해 도로터널에서 수소차 안전성 평가를 위하여 국내 실정에 맞는 수소차 사고시나리오를 개발하였으며, 수소차 사고시나리오의 사고결과에 대한 위험거리를 분석·제시하였다. 수소차 사고시나리오에 따른 사고결과는 경미한 사고, 일반화재, 제트화염, 폭발로 구분되며, 각각의 발생확률을 93.06%, 1.83%, 2.25%, 2.31%로 예측된다. 표준단면(72 m²)의 도로터널에서 국내에서 시판되는 수소차량의 수소탱크제원을 적용하는 경우, 사고결과에 따른 위험 거리는 폭발의 경우 약 17.6 m (폭발압력 16.5 kPa기준), 제트화염은 약 6 m, 파이어볼 형성에 따른 위험거리는 최대 35 m로 분석되었다.

• 한국수소및신에너지학회논문집
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• 제31권6호
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• pp.605-613
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• 2020

In July and October of this year, the government announced the 'Green new deal plan within the Korean new deal policy' and 'Strategies for proliferation of future vehicles and market preoccupation'. And, in response to changes in the global climate agreement, it has decided to expand green mobility such as electric vehicles and hydrogen electric vehicles with the aim of a "net-zero" society. Accordingly, the goal is to build 310 hydrogen refueling stations along with the supply of 60,000 hydrogen vehicles in 2022, and the hydrogen infrastructure is being expanded. however, it is difficult to secure hydrogen infrastructure due to expensive construction costs and difficulty the selection of a site. In Korea, it is possible to build a mobile hydrogen station according to the safety standards covering special case of the Ministry of Industry. Since the mobile hydrogen station can be charged while moving between authorized place, it has the advantage of being able to meet a large number of demands with only one hydrogen refueling station, so it is proposed as a model suitable for the early market of hydrogen infrastructure. This study demonstrates the establishment of a hydrogen refueling station by deriving a virtual accident scenario for leakage and catastrupture for each facility for the risk factors in a mobile hydrogen station, and performing a quantitative risk assessment through the derived scenario. Through the virtual accident scenario, direction of demonstration and implications for the construction of a mobile hydrogen refueling station were derived.