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This paper presents the design and numerical analysis of an experimental system intended to study the effects of water curtains on the propagation of hydrogen explosions. The developed virtual model reproduces a test stand consisting of three successive chambers separated by two water-filled barriers acting as water curtain obstacles. The atmosphere in the chambers is composed of an explosive hydrogen–air mixture with a hydrogen concentration of 25%. The explosion is initiated in the first chamber, and the propa...

The study of hydrogen explosions in interconnected spaces is essential for safety in industrial and laboratory settings. Due to its highly flammable nature, understanding hydrogen explosion dynamics is essential for risk mitigation. This paper presents an experimental and computational analysis of a hydrogen explosion in a setup with four interconnected chambers. The experimental stand had transparent walls for direct observation. Ignition was initiated to analyze flame propagation, acceleration, and pressure vari...

In this study, we present the design and implementation of an experimental stand tailored for the analysis of hydrogen explosions with the capability of modifying the propagation direction. Hydrogen explosions pose significant safety concerns in various industrial settings, and understanding their behavior under different conditions is crucial for risk assessment and mitigation strategies. The experimental setup integrates precise control mechanisms to manipulate the direction of explosion propagation, allowing fo...

Artificial intelligence (AI) is well known as a robust technique that can support and improve the quality of human life. In the mining industry, the applications of artificial intelligence have changed the sciences and technologies as well as the performance of the mining industry through machine learning, autonomous technologies that provide many economic benefits to the mining industry by reducing costs, efficiency and improving productivity. In principle, reducing the exposure of workers to hazardous conditions...

The effect of pressurized hydrogen on pipeline walls is an important phenomenon that can cause damage to the integrity of the pipeline structure during transport and storage of gases. Hydrogen can penetrate the wall of metallic pipelines (alloy steel or carbon steel) and cause cracking or rupture of the material, which can lead to pressure loss or even serious effects (explosions, fires). The embrittlement of the metal by hydrogen is a phenomenon of degradation of the mechanical properties of the metal, as a resul...

Risks are present in all economic and industrial activities that manifest themselves both through economic losses, malfunctions of installations and equipment, as well as the occurrence of minor or major accidents with particularly serious consequences resulting in deaths and injuries, pollution of the environment. The assessment of risk levels stimulates the co-interest of economic operators to improve their working and environmental conditions, respectively to take measures to move from high risk levels to lower...

The significant increase in the price of energy resources leads today's society not only to a reconsideration of energy conservation policies but also to the encouragement of architects, builders, and building owners to use thermal insulation and exterior wall finishing systems. The design of thermal insulation for facades is a constructive decision, in which the layer with thermal insulation properties is fixed on the load-bearing side of the walls, with the help of adhesives and/or by mechanical means, followed ...

In the investigation of gas explosion events resulting from combustible gas leakage, often the formation of the explosive atmosphere at the location of the ignition source is less highlighted, usually being calculated the concentration of combustible gases at the entire volume affected by the explosion; depending on the distance between the gas source and the ignition, the complexity of the geometry (volumes occupied by various solid bodies) and the air currents in that volume (convective currents generated by hea...

Operations carried out within the oil and gas industry involve the risk of explosions which might lead to work accidents with significant consequences for personnel and installations. The release of a hydrocarbon gas due to various reasons such as improper selected equipment or its’ malfunction, staff negligence, lack of maintenance a.s.o. in mixture with air generates a potentially explosive atmosphere if the mixture’s concentration ranges between certain limits, the so-called Lower Explosive Limit (LEL) and Uppe...

Worldwide, the increased demand for various chemical products has led to an increased production activity of chemical plants involving the use of a large variety of chemicals. Most of the chemical substances used by the plants on a regular basis are considered to be highly hazardous, having toxic, explosive or flammable properties. The production, use, transportation or storage of such hazardous chemicals involves special occupational health and safety measures which have to be taken into account by the employers....