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최윤혁,홍정열,장정아,허노윤 한국위험물학회 2019 한국위험물학회지 Vol.7 No.2
In this paper, we analyzed the current status and implications of vehicles transporting hazardous materials using expressway in cooperation with the Ministry of Environment's Hazardous Chemicals Transport Plan. Of the 13 EPAs under the Ministry of Environment, five EPAs (including disaster prevention centers) provided data for a specific period. In this study, we analyzed general characteristics, expressway usage status, and reported route correspondence by combining relevant information such as vehicle number, expressway entrance / exit IC name, expressway traffic record, loading item, and loading weight presented in transportation plan. As a result, it can be estimated that an average of 795 hazardous chemical transport vehicles are operated nationwide every day, operating mainly on weekdays rather than weekends, and running about 9.85 times per month per vehicle, carrying an average of 21.85 tons of dangerous substances. As a result, the train traveled an average of 169.83 km. This study is meaningful in that it analyzes traffic characteristics of dangerous goods transport vehicles with actual highway dangerous goods transport data for the first time in Korea. It can be expected to establish a framework for system and policy preparation for road policy makers, road managers, vehicles for transporting dangerous goods, and drivers.
현중섭(Jung Seob Hyun),허재실(Jae Sil Heo),조선영(Sun Young Cho),허정열(Jeong Yeol Heo),이성기(Seong Kee Lee) 대한기계학회 2009 大韓機械學會論文集A Vol.33 No.10
High temperature steam pipes of thermal power plant are subject to a severe thermal range and usually operates well into the creep range. Cyclic operation of the plant subjects the piping system to mechanical and thermal fatigue damages. Also, poor or malfunctional supports can impose massive loads or stress onto the piping system. In order to prevent the serious damage and failure of the critical piping system, various inspection methods such as visual inspection, computational analysis and on-line piping displacement monitoring were developed. 3-dimensional piping displacement monitoring system was developed with using the aluminum alloy rod and rotary encoder sensors, this system was installed and operated on the high temperature steam piping of "Y" thermal power plant successfully. It is expected that this study will contribute to the safety of piping system, which could minimize stress and extend the actual life of critical piping.