Explosions and deflagration-to-detonation transitions in epoxy propane/air mixtures

Flame behaviors and explosion characteristics of two‐phase propylene oxide/air mixture under different ambient pressures

“…Explosion parameters are often influenced by a series of conditions, such as fuel concentration, droplet size, ignition position, initial temperature, initial pressure, and volume of a container 3–31 . To be specific, Qi et al 20 studied the effect of concentration on the vapor‐phase explosion in a 20 L spherical vessel and also found that the maximum explosion pressure ( P max ) was a quadratic function of the initial vapor concentration.…”

“…Propylene oxide (PO), C 3 H 6 O, a colorless liquid with ether odor and a C:H ratio of 0.5, has a low boiling point (308 K), wide combustibility, high volatility, and sensitivity 35 . It is an essential raw and energetic material and is widely used in chemical industries, fuel‐air explosions (FAE), 36 internal combustion engines, and high‐energy propulsion systems like PDE 12 . The explosion of gas–liquid two‐phase mixtures often exists in the production, transportation, and storage of high‐energy propellants and cloud‐explosive fuel 12 …”

“…Liu and Zhang 16 numerically found that the detonation characteristics of PO were similar to JP‐10 (tetrahydro‐dicyclopentadiene). Meanwhile, Liu et al, 12 Li et al, 38 and Xiao et al 39 investigated the explosion characteristics and deflagration‐to‐detonation transitions in a two‐phase PO/air mixture.…”

“…35 It is an essential raw and energetic material and is widely used in chemical industries, fuel-air explosions (FAE), 36 internal combustion engines, and high-energy propulsion systems like PDE. 12 The explosion of gasliquid two-phase mixtures often exists in the production, transportation, and storage of high-energy propellants and cloud-explosive fuel. 12 Many numerical and experimental studies have also been conducted to explore the explosion behaviors of PO/air mixture.…”

“…12 The explosion of gasliquid two-phase mixtures often exists in the production, transportation, and storage of high-energy propellants and cloud-explosive fuel. 12 Many numerical and experimental studies have also been conducted to explore the explosion behaviors of PO/air mixture. For example, Bai et al 9 studied the explosion characteristics of PO/air mixture in a 20 L sphere.…”