Toward a detailed understanding of the rocket propulsion process and prediction on the trajectory of a boiling liquid expanding vapor explosion (BLEVE)

2021 ◽  
pp. 104719
Author(s):  
Zhi Wang ◽  
Yi Liu ◽  
Shuya Hou ◽  
Yingnan Zhang ◽  
Bin Zhang
Keyword(s):  
Vapor Explosion ◽  
Detailed Understanding ◽  
Rocket Propulsion ◽  
Boiling Liquid

Storage Battery Explosions: Heating and Jarring

1986 ◽  
Vol 3 (2) ◽  
Author(s):  
Harry S. Dixon
Keyword(s):  
High Rate ◽  
Storage Battery ◽  
High Current ◽  
Vapor Explosion ◽  
Popular Belief ◽  
Boiling Liquid ◽  
Localized Heating ◽  
A Cell ◽  
Current Drain

A previous paper entitled Storage Battery Explosions: Hydrogen or BLEVE.? showed that contrary to popular belief storage battery explosions concurrent with or following a high rate of discharge were BLEVE (Boiling Liquid Expanding Vapor Explosion) explosions rather than hydrogen. The bases of that paper were the explosions of two batteries. Because of low liquid in a cell there had been excessive localized heating, actually superheating, between the plates. However, other than the explosion resulting from alleged superheating there was no other indication nor evidence of heating. This paper describes a BLEVE explosion that resulted simply from jarring after the overheating of the battery which had been subjected to high current drain in attempting to start the automobile. It is referred to as the Salaam case.

Modeling of Boiling Liquid Expanding Vapor Explosion (BLEVE): Plane, Cylindrical and Spherical 1D Model

2008 ◽  
Author(s):  
G. A. Pinhasi ◽  
Y. Dahan ◽  
A. Dayan ◽  
A. Ullmann
Keyword(s):  
Shock Wave ◽  
Current Model ◽  
Dynamic State ◽  
Vapor Explosion ◽  
Two Phase ◽  
Boiling Liquid ◽  
Energy Models ◽  
Model Predictions ◽  
1D Model ◽  
Tnt Equivalence

A 1D plane, cylindrical and spherical numerical model was developed for estimating the thermodynamic and the dynamic state of the boiling liquid during a boiling liquid expanding vapor explosion (BLEVE) event. The model predicts, simultaneously, the flow properties of the expanding two-phase flashing mixture and its surrounding air. The possible presence of a shock wave formed by the fluid expansion through the air is accounted for in the model. Model predictions of the shock wave strengths, in terms of TNT equivalence for the various coordinate systems, were compared against those obtained by simple energy models. As expected, the simple energy models over predicts the shock wave strength. However, the simple model which accounts for the expansion irreversibility, produces results which are closer to current model predictions. For the 1D plane case the model simulates a BLEVE scenario in a tunnel, whereas for the spherical case the more realistic BLEVE scenario in free space is being studied.

scholarly journals CFD Simulation and Mitigation with Boiling Liquid Expanding Vapor Explosion (BLEVE) Caused by Jet Fire

2018 ◽  
Vol 3 (1) ◽  
pp. 1 ◽  
Author(s):  
Alon Davidy
Keyword(s):  
Cfd Simulation ◽  
Fluid Dynamic ◽  
Heat Fluxes ◽  
Heat Transfer Analysis ◽  
Superheated Liquid ◽  
Vapor Explosion ◽  
Fire Dynamics ◽  
Boiling Liquid ◽  
Eddy Simulation ◽  
The People

Different kinds of explosions are driven by the internal energy accumulated in compressed gas or superheated liquid. A well-known example of such an explosion is the burst of a vessel with pressure-liquefied substance, known as Boiling Liquid Expanding Vapor Explosion (BLEVE). Hot BLEVE accident is caused mainly by direct heating (pool fire or jet fire) of the steel casing at the vapor side of the tank to temperatures in excess of 400 °C. Thermal insulation around the tank can significantly reduce and retard the excessive heating of the tank casings in a fire. This will allow fire fighters enough time to reach the accident location and to cool the LPG (Liquid Petroleum Gas) tank to avoid the BLEVE, to extinguish the fire or to evacuate the people in the vicinity of the accident. The proposed algorithm addresses several aspects of the BLEVE accident and its mitigation: Computational Fluid Dynamic (CFD) Simulation of jet fire by using fire dynamics simulator (FDS) software by using large eddy simulation (LES); calculation of the convective and radiative heat fluxes by using the impinging jet fire theory; performing thermochemical and heat transfer analysis on the glass-woven vinyl ester coating of the vessel by using FDS software (version 5); and COMSOL Multiphysics (version 4.3b) during the heating phase of composite and calculation of the time period required to evaporate the liquefied propane by using the first and second laws of thermodynamics.

scholarly journals Small Scale Experiments of CO2 Boiling Liquid Expanding Vapor Explosion in Injection Pipes

2014 ◽  
Vol 61 ◽  
pp. 782-786 ◽  
Author(s):  
Yi Zhou ◽  
Zhenyi Liu ◽  
Qian Huang ◽  
Feng Wang ◽  
Deping Zhang
Keyword(s):  
Small Scale ◽  
Vapor Explosion ◽  
Boiling Liquid
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