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Research Paper

A basic study on the hazard of hydrogen feul cell vehicles in road tunnels

도로터널에서 수소차 위험에 관한 기초적 연구

Ji-Oh Ryu1*
,
Hu-Young Lee2
류 지오1*
,
이 후영2
1Professor, Dept. of Mechanical and Automotive Engineering, Shinhan University
2Student, Dept. of ICT Mechanical Engineering, Shinhan University Graduate Schoo
1정회원, 신한대학교 기계자동차융합공학과 교수
2정회원, 신한대학교 대학원 ICT기계공학과 학생
*Corresponding Author
31 January 2021. pp. 47-60
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Abstract

Hydrogen is a next-generation energy source, and according to the roadmap for activating the hydrogen economy, it is expected that industries to stably produce, store, and transport of hydrogen as well as the supply of hydrogen fuel cell vehicles will be made rapidly. Accordingly, safety measures for accidents of hydrogen vehicles in confined spaces such as tunnels are required. In this study, as part of a study to ensure the safety of hydrogen fuel cell vehicles in road tunnels, a basic investigation and research on the risk of fire and explosion due to gas leakage and hydrogen tank rupture among various hazards caused by hydrogen fuel cell vehicle accidents in tunnels was conducted. The following results were obtained. In the event of hydrogen fuel cell vehicle accidents, the gas release rate depends on the orifice diameter of TPRD, and when the gas is ignited, the maximum heat release rate reaches 3.22~51.36 MW (orifice diameter: 1~4 mm) depending on the orifice diameter but the duration times are short. Therefore, it was analyzed that there was little increase in risk due to fire. As the overpressure of the gas explosion was calculated by the equivalent TNT method, in the case of yield of VCE of 0.2 is applied, the safety threshold distance is analyzed to be about 35 m, and number of the equivalent fatalities are conservatively predicted to reach tens of people.

Keywords
Hydrogen tank rupture and explosion
Hydrogen gas release
Jet fire
Hydrogen fuel cell vehicle
Blast overpressure

수소는 차세대 에너지원으로서 수소경제 활성화 로드 맵에 따라 수소를 안정적으로 생산 ‧ 저장 ‧ 운송하기 위한 산업과 더불어 수소차의 보급이 급속도로 이루어질 것으로 예상된다. 이에 따라 터널과 같은 반밀폐공간에서의 수소차의 사고에 대비한 안전대책이 요구되고 있다. 본 연구에서는 도로터널에서 수소차량의 안전성을 확보하기 위한 연구의 일환으로 터널 내 수소차 사고에 따른 다양한 위험요인 중 가스누출에 따른 화재와 폭발의 위험성에 대한 기초적인 조사 ‧ 연구를 수행하였으며, 다음과 같은 결과를 얻었다. 수소차 사고 시 가스누출속도는 TPRD의 오리피스직경에 의존하며, 가스가 점화되는 경우에 최대화재강도는 오리피스직경에 따라 3.22~51.36 MW (오리피스직경: 1~4 mm)에 도달하나 지속시간이 짧기 때문에 화재로 인한 위험의 가중은 거의 없는 것으로 분석되었다. 등가 TNT방법에 의해서 폭발에 따른 과도압력을 계산하였으므로 폭발수율을 0.2적용하는 경우, 안전한계 거리는 대략 35 m 정도로 분석되고 등가사망자는 보수적인 관점에서 수십 명 정도에 달할 것으로 예측된다.

키워드
수소탱크 파열 ‧ 폭발
수소가스 누출
제트 파이어
수소전지차
폭발압력
References
1
Coward, H.F., Jones, G.W. (1952), Limits of flammability of gases and vapors, United States Government Printing Office, Washington, pp. 15-19.
2
ECE (2013), Addendum 13: Global technical regulation No. 13, United Nations, pp. 82.
3
Fuel Cells and Hydrogen Joint Undertaking, https://elab-prod.iket.kit.edu/ (September 25, 2020).
4
HyTunnel-CS (2019), Deliverable 1.2 Report on hydrogen hazards and risks in tunnels and similar confined spaces, Fuel Cells and Hydrogen Joint Undertaking (FCH JU), pp. 13-136.
5
IFA, What to do when hydrogen vehicles burn?, https://www.ifa-swiss.ch/en/magazine/detail/what-to-do-when-hydrogen-vehicles-burn (December 22, 2020).
6
Kim, M.J., Kwon, S.K. (2020), "Calculation of the TNT equivalent mass of the possible explosion of CO, CH4, and C2H4", Journal of Korean Society of Explosives and Blasting Engineering, Vol. 38, No. 1, pp. 1-13.
7
Kim, S.H., Choi, Y.M., Hang, K.H., Shim, J.H., Hang, I.C., Lim, T.W. (2011), "The evaluation of fire reliability for the high pressure hydrogen storage system of fuel cell vehicle (I)", Transactions of the Korean Hydrogen and New Energy Society, Vol. 22, No. 4, pp. 520-526.
8
Klomfass, A., Stolz, A., Hiermaier, S. (2016), "Improved explosion consequence analysis with combined CFD and damage models", Chemical Engineering Transactions, Vol. 48, pp. 109-114.
9
KOSHA (2017), Fire explosion impact and accident analysis model study (Ⅱ), pp. 23-26.
10
Kwon, S., Park, J.C. (2015), "A review of TNT equivalent method for evaluating explosion energy due to gas explosion", Journal of Korean Society of Explosives and Blasting Engineering, Vol. 33, No. 3, pp. 1-13.
11
Li, Y.Z. (2019), "Study of fire and explosion hazards of alternative fuel vehicles in tunnels", Fire Safety Journal, Vol. 110, pp. 1-20. 10.1016/j.firesaf.2019.102871
12
Lopes, K.B., Melo, P.F.F.F. (2011), "Analysis of the effects of explosion of a hydrogen cylinder on the transfer of radioactive liquid wastes at nuclear power stations", Proceedings of the International Nuclear Atlantic Conference (INAC), Brazil, pp. 1-15.
13
Ministry of Land, Transport and Maritime Affairs (2013), Fuel cell electric vehicle safety evaluation technology development research report, pp. 242-484.
14
Molkov, V., Dery, W. (2020), "The blast wave decay correlation for hydrogen tank rupture in a tunnel fire", International Journal of Hydrogen Energy, Vol. 45, No. 55, pp. 31289-31302. 10.1016/j.ijhydene.2020.08.062
15
MOTIE (2019), Future automotive industry development strategy -2030 national roadmap-, pp. 12-13.
16
National Statute Information Center (2016), Road tunnel disaster prevention facility installation and management guidelines, Ministry of Land, Infrastructure and Transport, pp. 40.
17
Sandia National Laboratories (2017), Hydrogen Fuel Cell Electric Vehicle Tunnel Safety Study, SAND2017-11157, Albuquerque, New Mexico, pp. 36-71.
18
Sandia National Laboratories (2020), Hydrogen fuel cell vehicles in tunnels, SAND2020-4507 R, Albuquerque, New Mexico, pp. 54-59.
19
Sisajournal-e (2018), [Site] I went to the Hyundai-Kia Motors R&D Motor Show... Focused on the naked hydrogen car "Nexo", http://www.sisajournal-e.com/news/articleView.html?idxno=191555 (October 6, 2020).
20
Soman, A.R., Sundararaj, G. (2012), "Consequence assessment of vapour cloud explosion involving hydrogen release", International Journal of Emerging Technology and Advanced Engineering, Vol. 2, No. 11, pp. 291-297.
21
UN SaferGuard, Kingery-Bulmash blast parameter calculator, https://unsaferguard.org/un-saferguard/kingery-bulmash (January 4, 2021).
22
Wu, Y. (2008), "Assessment of the impact of jet flame hazard from hydrogen cars in road tunnels", Transportation Research Part C: Emerging Technologies, Vol. 16, No. 2, pp. 246-254. 10.1016/j.trc.2007.08.001
23
Yoon, Y.K. (2016), "Evaluation of peak overpressure and impulse induced by explosion", Journal of Korean Society of Explosives and Blasting Engineering, Vol. 34, No. 4, pp. 28-34.
Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 23
  • No :1
  • Pages :47-60
  • Received Date : 2021-01-05
  • Revised Date : 2021-01-18
  • Accepted Date : 2021-01-19
  • DOI :https://doi.org/10.9711/KTAJ.2021.23.1.047
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