000 02213nab a2200217 4500
005 20260520004608.0
008 260224s2018 xxu ing
041 _aInglés
245 0 0 _aExperimental Study of the Initial Pressure Effect on Methane-Air Explosions in Linked Vessels
260 _a
_b
_cmar. 2018
270 _a09/10/2020 ; 09/10/2020
300 _a9 p. ; 86-94
520 _aThis study experimentally addresses the pressure evolution during the closed and vented explosion progress of a methane-air mixture ([CH4 = 10%]) in different vessel-pipeline configurations at ambient initial temperature and different initial pressures. Based on the experimental measurements, it is found that the maximum values of both closed and vented explosion pressure increase linearly with the initial pressure in isolated and linked vessel scenarios. Compared with a vented explosion, the initial pressure has a greater impact on the explosion overpressure in an isolated vessel and a single spherical vessel connected to a pipe during a closed explosion. For the configuration of two spherical vessels connected by a pipe, the explosion overpressure in the primary vessel is always lower than that in the secondary vessel during both closed and vented explosions at each initial pressure. According to Chapman-Jouget Detonation Theory (C-J detonation theory), when the ignition is located in a large vessel, detonation is observed in the secondary vessel at an initial pressure of 0.08 MPa. The vent position and ignition position both have an influence on the extent of variation of the pressure differential between two vessels with a given initial pressure. For the configuration of a single vessel connected to a pipe, the initial pressure influences the maximum explosion pressure and vented explosion overpressure least in a small vessel when the ignition position is located in the small vessel. These conclusions can provide references for the safety design of chemical equipment.
581 _a1
773 0 _tProcess safety progress
_g
942 _cARTICULO
100 1 _aZhen, Yaya
_956486
100 1 _aWang, Zhirong
_956485
100 1 _aGong, Junhui
_959760
999 _c193605
_d193605