TY - JOUR
TI - Analysis of propagation characteristics of hydrogen flame in shock tube in integrated energy system
AU - Zhao Baohua
JN - Thermal Science
PY - 2023
VL - 27
IS - 2
SP - 1059
EP - 1066
PT - Article
AB - In order to study the explosion law of hydrogen and air premixed gas in the  pipe-line, the author proposes an analysis of the propagation  characteristics of hydrogen in the shock tube in the integrated energy  system. Use a square transparent pipe with a size of 150 mm×150 mm×1000 mm,  the shape of the explosion flame, the propagation velocity and the pressure  change with the hydrogen volume fraction from 10-40% were observed through  experiments. Flame spread and pressure were recorded and measured by high  speed cameras and pressure sensors, respectively. Experimental results show  that the explosion flame characteristics and pressure changes are greatly  affected by the hydrogen volume fraction. With the increase of hydrogen  volume fraction, the maximum velocity and maximum value of flame in pipe  increase significantly. The maximum flame propagation speed is increased  from 18.3-304.2 m/s, and the propagation time is shortened from 123.5-10.5  ms. The pressure peak increased from 2.95-34.06 kPa. The analysis of the  propagating characteristics of the hydrogen flame in the shock tube in the  integrated energy system can well reflect the intensity of the hydrogen  explosion. Do not use abbreviations and acronyms in the abstract.