| Popis: |
The article discusses such a dangerous phenomenon as the explosion of expanding vapors of boiling liquid (BLEVE). Among the most devastating accidents that can occur in the chemical industry, BLEVE stands out. It is accompanied by sufficient explosive waves and excessive pressure. The article describes this phenomenon and analyzes the methods of calculating the excess pressure of the BLEVE explosion. The main attention is drawn to the difference between the methods used in the Russian Federation and in France. The main part of the article describes the phenomenon of BLEVE. The reasons for its manifestation and the formulas used in the methods are described. The article, based on the analysis of: Baker method, Push method, Planes-Cuchi method and МЧС methodology, shows the difference in the approach of determining excess pressure. In conclusion, significant discrepancies in the results due to thermodynamic assumptions – the behavior of an ideal gas and the isentropic expansion of steam – are briefly analyzed. |
