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Keywords: deflagration, venting, explosion characteristics, numerical simulations.

Summary

Explosion and maximum explosion parameters are influenced by many factors such as size and shape of the object, initial pressure and initial temperature, initial energy, location of the ignition source, turbulence of the mixture, volume of oxygen in the atmosphere and others.

A set of experiments on vented methane-air mixture explosions with various concentration values was executed. In terms of experiments, the concentration of the explosive mixture was changed in a range from the lower to the upper explosive limit. Measurements were carried out in the compact small scale model at ambient conditions. Vent areas and venting elements with variable values of static activation pressure were used. In this paper, time-pressure curves based on experimental measurements are compared with the curves calculated with the software using CFD simulations. A set of measured curves are used for further analysis and fundamental items of explosion loading are determined at variable mixture concentrations: of reduced explosion pressures, impulse and duration positive and negative phases of explosion.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 139 Investigation of Blast Load Parameters of Internal Gas Deflagration M. Mynarz¹ and J. Brozovsky² ¹Faculty of Safety Engineering VŠB Technical University of Ostrava, Czech Republic ²Faculty of Civil Engineering VŠB Technical University of Ostrava, Czech Republic doi:10.4203/ccp.102.139 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Mynarz, J. Brozovsky, "Investigation of Blast Load Parameters of Internal Gas Deflagration", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 139, 2013. doi:10.4203/ccp.102.139 Keywords: deflagration, venting, explosion characteristics, numerical simulations. Summary Explosion and maximum explosion parameters are influenced by many factors such as size and shape of the object, initial pressure and initial temperature, initial energy, location of the ignition source, turbulence of the mixture, volume of oxygen in the atmosphere and others. A set of experiments on vented methane-air mixture explosions with various concentration values was executed. In terms of experiments, the concentration of the explosive mixture was changed in a range from the lower to the upper explosive limit. Measurements were carried out in the compact small scale model at ambient conditions. Vent areas and venting elements with variable values of static activation pressure were used. In this paper, time-pressure curves based on experimental measurements are compared with the curves calculated with the software using CFD simulations. A set of measured curves are used for further analysis and fundamental items of explosion loading are determined at variable mixture concentrations: of reduced explosion pressures, impulse and duration positive and negative phases of explosion. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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