Study of a Post-fire Verification Method for the Activation Status of Hydrogen Cylinder Thermally-activated Pressure Relief Devices


To safely move from its fire accident site a hydrogen fuel cell vehicle equipped with a carbon fiber reinforced plastic composite cylinder for compressed hydrogen (CFRP cylinder) and to safely scrap the burnt vehicle, it is necessary to verify whether the thermally-activated pressure relief device (TPRD) of the CFRP cylinder has already been activated, releasing the hydrogen gas from the cylinder. To develop a simple post-fire verification method on TPRD activation, the present study was conducted on the simple technique of verifying TPRD activation by measuring hydrogen concentration at the TPRD gas release port, using the hydrogen densitometers and Type III and Type IV CFRP cylinders having different linings. As a result, TPRD activation status can be determined by measuring gas concentration with a catalytic combustion hydrogen densitometer at the cylinder’s TPRD gas release port within 24 hours.火災現場において容易に安全弁の作動の有無を判断する手法を検討した.その結果,鎮火後24 時間以内に安全弁の脱圧ポートから接触燃焼式の水素濃度計を用いて圧縮水素容器内のガスを計測することにより,安全弁の作動の有無を判断できることが明らかになった.


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  • Accession Number: 01672701
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: May 15 2018 3:02PM