In the field of risks analysis, the domino effect has been documented in technical literature since 1947. The accidents caused by the domino effect are the most destructive accidents related to industrial plants. Fire and explosion are among the most frequent primary accidents for a domino effect due to the units under pressure and the storage of flammable and dangerous substances. Heat radiati...

Several methodologies, based on different thermodynamic assumptions and requiring substance properties and thermodynamic data, have been proposed in the literature for the prediction of the mechanical energy released by a Boiling Liquid Expanding Vapour Explosion (BLEVE) and the associated overpressure. A new method, simple and easy to use, is presented which only requires the vessel filling de...

The deflagration flame of stoichiometric hydrogen-air mixtures is studied in this paper. Combined with the foam copper structure, characteristic analyzed experimental results show that can improve flow instability at front and degree turbulence propagation process, propagates more rapidly state, number stages morphology during process in-creases. classic ?tulip? be transformed into a distorted ...

Abstract In view of the flammable and explosive characteristics oil gas pipeline transportation medium, once it leaks, production safety accidents are easy to occur. This study uses explosions with severe consequences caused by natural leakage as an example. The risk factors accident modes storage pipelines analyzed; explosion load is calculated a scaling prediction model TNO multi-energy metho...

Molecular-beam epitaxy grown InAs site-controlled quantum dots SCQDs have been demonstrated on GaAs substrates patterned with a dense array of 100 nm square nanopores in 200 nm pitch by soft photocurable nanoimprint lithography. The effects of different growth parameters, including GaAs buffer-layer thickness and arsenic overpressure, on SCQD formation are investigated. The buffer-layer thickne...

BACKGROUND Because the characteristics of blast waves in water are different from those in air and because kinetic energy is liberated by a pressure wave at the water-air interface, thoracic injuries from mine blasts in shoals may be serious. The aim of the present study was to investigate the characteristics and mechanisms of cardiopulmonary injury caused by mine blasts in shoals. METHODS To...

This paper explores the effects of an abrupt cross-section area change gas pipes on propagation law explosion. For this, explosion pipe experimental system was established, and a numerical research conducted. By simulation, evolution overpressure, temperature, vorticity, kinetic energy shock waves in pipelines investigated. allowed us to obtain expressions for attenuation coefficient, increase ...