| abstract |
A high-pressure tank apparatus capable of avoiding erroneous determination that leakage at the time of abnormality has occurred during normal operation and accurately determining that leakage at the time of abnormality has occurred, and a leakage determination method thereof. provide. A high-pressure tank 16 of a high-pressure tank apparatus 10 has a resin liner 52, a reinforcing layer 50 covering the outer surface of the liner 52, and a supply / discharge hole 100 to which a supply / discharge channel 12 is connected via a connecting portion 42b. Have. The accommodating part 22 can accommodate the leaked fluid leaked from the connecting part 42 b and the temporarily released fluid derived from between the liner 52 and the reinforcing layer 50. When the internal pressure detection value of the high-pressure tank 16 by the pressure sensor 26 is larger than the sensor selection threshold, the control unit 28 is below the sensor selection threshold based on the detection result of the concentration sensor 24 that detects the concentration of hydrogen gas in the storage unit 22. In some cases, it is determined based on the detection result of the pressure sensor 26 whether or not a leaking fluid is generated. [Selection] Figure 1 |