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RISS 인기검색어
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- 저자 : 오미림(Mirim Oh) (검색결과 2 건)
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고압수소 저장시스템에서 안전밸브 선정에 관한 이론 및 수치해석적 연구
오진식(Jin Sik Oh),이미림(Mirim Lee),김성재(Seong Jae Kim),윤정환(Jeong Hwan Yoon) 대한기계학회 2025 대한기계학회논문집B Vol.49 No.9
With the growing adoption of hydrogen energy, the construction of hydrogen refueling stations has been steadily increasing. Hydrogen is typically transported in high-pressure or liquefied states, and storage methods such as those used in 1.5-generatio n charging stations are employed. In particular, it is critical to ensure that the design allows for the safe relief of pressure in storage tanks under abnormal overpressure conditions, such as those caused by external fires, to protect the integrity of the tanks. However, current standards tend to overestimate the required relief capacity. To address this, this study develops a dynamic simulation approach based on the methodology suggested in API 521. The study analyzes the selection of a safety valve for a parallel tank system under two conditions: continuous inflow at the compressor's maximum flow rate and an abnormal overpressure scenario caused by an external fire. The results indicate that, in the abnormal compressor inflow scenario, the minimum required discharge capacity of the safety valve corresponds to the compressor's inflow rate. Furthermore, under external fire conditions, the required discharge capacity varies depending on the number of parallel tanks, highlighting the importance of case-specific analysis.
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스마트그리드 상호운용성 확보를 위한 유스케이스 방법론에 따른 전기자동차 계통지원 모델에 관한 연구
조명진(Myeongjin Jo),김준기(Jungi Kim),오미림(Mirim Oh) 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.10-3
As the spread of electric vehicles continues, various approaches to research, demonstration, and commercialization are being made to use electric vehicles as system flexibility resources. However, the requirements for discharging the vehicle’s battery to bring the research or demonstration into the commercialization stage are still insufficient, and models for grid support functions necessary for integration to the grid should be presented and considered in advance. In this study, models were analyzed and described so that electric vehicles can be used as flexible resources according to the smart grid use case methodology and the requirements were reviewed through the analysis of use cases including grid support functions to ensure interoperability of electric vehicles and charging infrastructures.
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