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Evaluation of Metering Accuracy of Hydrogen Station Using Master Meter Method

표준유량계법을 적용한 수소 충전소 계량 정확도 평가

  • Han, Wonguk (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Yim, Sangsik (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Song, Bohee (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Kil, Sunghee (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Kim, Younggyu (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Kim, Hongchul (Daegu University)
  • 한원국 (한국가스안전공사 가스안전연구원) ;
  • 임상식 (한국가스안전공사 가스안전연구원) ;
  • 송보희 (한국가스안전공사 가스안전연구원) ;
  • 길성희 (한국가스안전공사 가스안전연구원) ;
  • 김영규 (한국가스안전공사 가스안전연구원) ;
  • 김홍철 (대구대학교)
  • Received : 2019.10.29
  • Accepted : 2019.12.24
  • Published : 2019.12.31

Abstract

Hydrogen is difficult to accurately measure the amount of charge due to sudden temperature changes and pressure rise when charging the vehicle. In order to construct a hydrogen infrastructure, it is important to precisely measure the amount of charge that can be a sensitive issue in commercial transactions. In this study, the accuracy of metering of domestic hydrogen stations was evaluated as a study for metering management of hydrogen dispenser. For the experiment, we constructed metering system using master meter method and measured the flow rate in the actual hydrogen vehicle charging environment. As a result of error occurred about 10% on average, and the hydrogen loss per one charge was found to be up to 60g.

수소는 차량에 충전 시 급격한 온도변화와 압력상승으로 인해 정확한 충전량의 측정이 어렵다. 수소 인프라 구축을 위하여 상거래 시 민감한 문제가 될 수 있는 충전량 정밀 측정 기술은 중요하다. 본 연구에서는 수소 충전기의 계량 관리를 위한 연구의 일환으로 국내 수소 충전소의 계량정확성 평가를 실시하였다. 실험을 위하여 표준유량계법을 적용한 장비를 제작하고 실제 수소자동차의 충전 환경에서 유량을 측정하였다. 그 결과 평균적으로 10% 내외의 오차가 발생하였으며, 1대 충전 당 수소 손실량은 최대 60g까지 나타나는 것으로 확인되었다.

Keywords

References

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