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Trichlorosilane 누출사고 시 물 반응성을 고려한 피해영향범위 산정식 도출방안 연구
전병한(Jeon, Byeonghan),김현섭(Kim, Hyunsub) 한국방재학회 2021 한국방재학회논문집 Vol.21 No.1
본 연구에서는 Trichlorosilane (TCS) 누출사고 발생 시 현장의 간단한 정보만으로 독성확산 피해영향범위를 산정하고 주민대피 결정을 판단할 수 있도록 KORA를 이용하여 피해영향범위 산정식을 도출하고자 하였다. TCS의 누출속도, 대기온도, 방류벽의 높이를 변수로 선정하였고, KORA를 이용한 피해영향범위 산출결과의 회귀분석을 통해 상황에 적합한 피해영향범위 산정식을 도출하였다. 회귀분석결과 방류벽이 존재하지 않는 장소에서의 피해영향범위는 원물질의 누출속도, 대기온도 순으로 높은 상관관계(p < 0.05)와 약 97%의 설명력을 갖는 것으로 조사되었다. 방류벽이 존재하는 장소에서의 피해영향범위는 원물질의 누출속도, 방류벽의 높이, 대기온도 순으로 높은 상관관계(p < 0.05)와 약 92~93%의 설명력을 갖는 것으로 나타났다. In this study, we aimed to derive a formula for calculating the damage impact range using KORA, in the event of an accidental leakage of trichlorosilane (TCS), with simple information on the site to swiftly inform the decision to evacuate residents. TCS release rate, temperature, and dike height were selected as the variables, and an equation to calculate the damage impact range was derived through the regression analysis of the range using KORA. Based on the result it was seen that the damage range in the absence of dike has high correlation (p<0.05) in the order of TCS release rate and temperature, with an explanatory power of about 97%. The damage impact range in the presence of dike was found to have high correlation (p<0.05) to TCS release rate, dike height, and temperature, respectively, with an explanatory power of about 92~93%.
HILS를 이용한 HEV 버스용 HCU 검증에 대한 연구
박우성(Woosung Park),함형진(Hyeongjin Ham),진기창(Kichang Jin),김현섭(Hyunsub Kim),이형철(Hyeongcheol Lee) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The HEV commercial bus system is being developed recently as a parallel hybrid system. The objectives of HEV commercial bus system such as the performance of vehicle, fuel economy, and reduction of emission are dependent on the supervisory control unit, HCU. Therefore, test of control algorithm of HCU is the most important part in developing HEV systems. The test of control algorithm should be conducted on a vehicle system, not a separate component. The test could be possible by a chassis dynamometer but it requires much time and costs. To get over this difficulty, the paper presents Hardware In The Loop Simulator (HILS) of the HEV commercial bus system for testing HCU by using dSPACE® HIL hardware. HILS is the quick and effective test method for real-time instead of actual test and enables more flexible design scenarios for configuration of hybrid system. It is because HILS includes electrical emulation of sensors and actuators, acting as the interface between the plant model and the actual HCU. Therefore, in the process of developing embedded system, HILS guarantees the safety and the less development time and cost. In the past decades, a lot of researches with HILS are conducted on the dynamics projects such as brake, engine control unit, and turbocharger in automotive systems. In these literatures, however, very few of these can be found regarding test on the hybrid system with HILS. Therefore, this paper proposes a new system test bench by HILS for the comprehensive test on the parallel HEV commercial bus system.