Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Conductive Rubber for Enhanced Safety in Hydrogen-based Facilities from Electrostatic Discharge

도전성 고무 매트를 이용한 수소 기반 시설에서 제전 신뢰성 향상

  • S. Lee (Department of Safety Engineering) ;
  • J. Ko (Department of Safety Engineering) ;
  • J. Song (Department of Safety Engineering) ;
  • C. Kim (Department of Safety Engineering) ;
  • C. Kim (Department of Safety Engineering) ;
  • H. S. Kim (Stanix Inc.) ;
  • M. E. Hur (RM Ltd.) ;
  • Chung J. H. (Usafe Inc.) ;
  • H. J. Song (Department of Safety Engineering)
  • 이수운 (서울과학기술대학교 안전공학과) ;
  • 고재환 (서울과학기술대학교 안전공학과) ;
  • 송지원 (서울과학기술대학교 안전공학과) ;
  • 김찬우 (서울과학기술대학교 안전공학과) ;
  • 김충일 (서울과학기술대학교 안전공학과) ;
  • 김해술 ((주)스타닉스) ;
  • 허만억 ((주)알앰) ;
  • 정재형 (유세이프) ;
  • 송형준 (서울과학기술대학교 안전공학과)
  • Received : 2023.10.24
  • Accepted : 2024.02.05
  • Published : 2024.02.29
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Abstract

Hydrogen-based electricity and transportation systems are widely recognized as sustainable power sources. However, the low ignition energy of hydrogen, only 1/10th that of conventional fossil fuels, poses a safety concern involving the risk of ignition due to electrostatic discharge from facility workers. Therefore, anti-static systems are imperative for hydrogen-based electricity facilities. To address this, we propose a reliable conductive rubber mat (CRM) to ensure the safety of these facilities. Unlike conventional anti-static floors that utilize conductive paint (CP), the CRM features a uniform distribution of conductive components in chemically and mechanically stable rubber. As a result, the CRM is unyielding to polar solvents (such as ethanol and hydrosulfuric acid) and non-polar solvents (like mineral oil) without increasing its resistance. Moreover, the CRM can withstand mechanical stress. Consequently, the human-body voltage of workers on the CRM would be sufficiently low enough to protect them from hydrogen explosions, thereby enhancing overall safety.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) through the Mid-career researcher program (NRF-2022R1A2C1092582) and "Leaders in INdustryuniversity Cooperation (LINC) 3.0" Program.

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