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Smart Structures and Systems
  Volume 29, Number 5, May 2022 , pages 653-660
DOI: https://doi.org/10.12989/sss.2022.29.5.653
 


Development of exothermic system based on internet of things for preventing damages in winter season and evaluation of applicability to railway vehicles
Heonyoung Kim, Donghoon Kang and Chulmin Joo

 
Abstract
    Gravel scattering that is generated during operation of high-speed railway vehicle is cause to damage of vehicle such as windows, axle protector and so on. Especially, those are frequently occurred in winter season when snow ice is generated easily. Above all, damage of vehicle windows has not only caused maintenance cost but also increased psychological anxiety of passengers. Various methods such as heating system using copper wire, heating jacket and heating air are applied to remove snow ice generated on the under-body of vehicle. However, the methods require much run-time and man power which can be low effectiveness of work. Therefore, this paper shows that large-area heating system was developed based on heating coat in order to fundamentally prevent snow ice damage on high-speed railway vehicle in the winter season. This system gives users high convenience because that can remotely control the heating system using IoT-based wireless communication. For evaluating the applicability to railroad sites, a field test on an actual high-speed railroad operation was conducted by applying these techniques to the brake cylinder of a high-speed railroad vehicle. From the results, it evaluated how input voltage and electric power per unit area of the heating specimen influences exothermic performance to draw the permit power condition for icing. In the future, if the system developed in the study is applied at the railroad site, it may be used as a technique for preventing all types of damages occurring due to snow ice in winter.
 
Key Words
    brake cylinder; deicing technology; multi-layered paint-type exothermic coating; railway site; snow ice
 
Address
Heonyoung Kim: Research Institute, PILETA Co., Ltd., Daejeon 34016, Republic of Korea
Donghoon Kang: Railroad Safety Research Division, Korea Railroad Research Institute, Uiwang 16105, Republic of Korea
Chulmin Joo: Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
 

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