Evaluation method for explosion of combustible vapor clouds
A vapor cloud explosion and explosion source technology, applied in the field of flammable vapor cloud explosion evaluation, can solve the problems of low evaluation speed and poor calculation accuracy
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[0016] A method for the assessment of flammable vapor cloud explosions, such as figure 1 shown, including the following steps:
[0017] 1. Use 3D tools to establish a full-scale 3D physical model of the leakage core area of the device;
[0018] 2. According to the actual operating temperature, pressure, medium and the actual size of the device, evaluate the possible accidents of the device, and calculate the amount of leaked combustible gas that is within the explosion limit according to credible accident scenarios;
[0019] 3. Using the constructed three-dimensional physical model and the amount of combustible gas under credible accidents, the three-dimensional quantitative evaluation method based on N-S equation, continuity equation and energy equation is used to quantitatively calculate the combustion energy in the area of the explosion source, and determine the explosion The intensity level of the source.
[0020] The assessment methodology consists of the following ...
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