The Safety of Hydrogen Jet-flame Suppression Training

The purpose of this study was to reproduce hydrogen gas leakage and jet flame accidents that can occur in storage facilities obtain basic data apply the gained knowledge firefighter training facilities, thereby improving safety response accidents. A total 11 scenarios were explored. In 1∼5, types for high (70 MPa), medium (55 low pressures (40 MPa) visualized with Schlieren system. With aid a high-speed camera, it confirmed spraying angle length 18∼20° approximately 10∼12 m, respectively. addition, 4 5, damage caused by radiant heat recorded be slightly higher arm/hand thigh/leg regions. noise flames measured 6∼11 using sound level meter, indicating 10 dB louder at pressure (52 MPa, 130 dB) than (17 120 Therefore, long-term exposure is may hearing.