TY - JOUR
T1 - Experimental research on the two-phase explosive boiling mechanism of superheated liquid under different leakage conditions
AU - Shang, Qingrui
AU - Tian, Zhenglun
AU - Wang, Supan
AU - Hua, Min
AU - Pan, Xuhai
AU - Shi, Shicheng
AU - Jiang, Juncheng
N1 - Publisher Copyright:
© 2022
PY - 2022/11/5
Y1 - 2022/11/5
N2 - In this study, a 17 L cube vessel was designed to simulate the explosive boiling of high-pressure liquefied gas after the leakage of the storage tank. The influence of leakage conditions such as crack position, crack diameter, and initial liquid fill level were investigated. Results indicate that when the crack is at the gas phase and gas-liquid interface, the rapid boiling of the liquid is caused by the leakage and significant pressure rebound is occurred. What's more, cracks located under the gas-liquid phase may also cause a significant rebound in pressure. As the crack diameter increases, the two-phase flow boiling intensity first increases and then decreases, and it reaches the maximum when the diameter is 30 mm. Furthermore, a concept of the critical liquid level difference was proposed, and its influencing factors were studied. Under the experimental conditions in this article, BLEVE will not occur if the height between the liquid level and the crack is above the critical liquid level difference.
AB - In this study, a 17 L cube vessel was designed to simulate the explosive boiling of high-pressure liquefied gas after the leakage of the storage tank. The influence of leakage conditions such as crack position, crack diameter, and initial liquid fill level were investigated. Results indicate that when the crack is at the gas phase and gas-liquid interface, the rapid boiling of the liquid is caused by the leakage and significant pressure rebound is occurred. What's more, cracks located under the gas-liquid phase may also cause a significant rebound in pressure. As the crack diameter increases, the two-phase flow boiling intensity first increases and then decreases, and it reaches the maximum when the diameter is 30 mm. Furthermore, a concept of the critical liquid level difference was proposed, and its influencing factors were studied. Under the experimental conditions in this article, BLEVE will not occur if the height between the liquid level and the crack is above the critical liquid level difference.
KW - Boiling liquid expanding vapor explosion (BLEVE)
KW - Critical liquid level difference
KW - Explosive boiling
KW - Leakage condition
KW - Two-phase flow
UR - http://www.scopus.com/inward/record.url?scp=85135501141&partnerID=8YFLogxK
U2 - 10.1016/j.applthermaleng.2022.119080
DO - 10.1016/j.applthermaleng.2022.119080
M3 - 文章
AN - SCOPUS:85135501141
SN - 1359-4311
VL - 216
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
M1 - 119080
ER -