Last Updated Fri, 05/24/2024 - 23:46
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… The issue of spontaneous ignition of highly pressurized hydrogen release is of important safety concern, e.g. in the … leading shock is shock-heated and mixes with the released hydrogen in the contact region. Ignition is firstly initiated … … Numerical Study on Spontaneous Ignition of Pressurized Hydrogen Release Through a Tube …
Last Updated Fri, 05/24/2024 - 23:46
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… and collecting data for risk management of hydrogen infrastructure. Focus is laid on thedevelopment of … information, which can be utilised in risk assessment of hydrogen applications. Ademonstration of safety will also … of Tools for Risk Assessment and Risk Communication for Hydrogen Applications-Paper …
Last Updated Fri, 05/24/2024 - 23:46
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… The 'SUpport to SAfety aNAlysis of Hydrogen and Fuel Cell Technologies' (SUSANA) project aims to … of a Model Evaluation Protocol for CFD Analysis of Hydrogen Safety Issues …
Last Updated Fri, 05/24/2024 - 23:46
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… The mixtures included 5%2and 10%2(vol.) N2 addition to hydrogen being at initial pressure in range of 4.3 - 15.9 MPa. As a point of reference pure hydrogen release experiments were performed with use of the … combustion during the release. … 1085 … Self-Ignition of Hydrogen-Nitrogen Mixtures During Hih-Pressure Release Into …
Last Updated Fri, 05/24/2024 - 23:46
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… rupture of stand-alone (stationary) and onboard compressed hydrogen cylinder in a fire are presented. The nomograms are easy to use hydrogen safety engineering tools. They were built using the … – one for use by first responders and another for hydrogen safety engineers. The paper underlines the …
Last Updated Fri, 05/24/2024 - 23:46
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… To facilitate the transition to the hydrogen economy the EU project NATURALHY is studying … the existing natural gas pipeline networks to transport hydrogen, together with naturalgas, to end-users. Hydrogen may then be extracted for hydrogen fuel-cell …
Last Updated Fri, 05/24/2024 - 23:46
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… fuels for power generation and transmission may consider hydrogen as possible energy carrier. An extensive and widespread use of hydrogen might require a pipeline network. The alternatives … … Benchmark Exercises Related to the Safety Analysis of Hydrogen-Natural Gas Mixtures Transmission in Pipelines …
Last Updated Fri, 05/24/2024 - 23:46
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… Hydrogen behavior at elevated pressures and temperatures was … Nevertheless, there is a lack of experimental data on hydrogen ignition and combustion at reduced sub-atmospheric … experimental evaluation of such fundamental properties of hydrogen-air mixtures as flammability limits and laminar …
Last Updated Sat, 11/04/2017 - 04:27
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… The hydrogen world consumption should increase significantly to … place in this production. This paper focuses on the hydrogen production by thermochemical cycle using the heat … range. The raw distribution of this energy gives a hydrogen production efficiency of 14.0%2 To improve this, the …
Last Updated Sat, 11/04/2017 - 04:27
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… A hydrogen economy, the long-term goal of visionary nations, … with environmental and economic benefits. The concept of a hydrogen energy economy was first conceived at The Hydrogen Economy Miami Energy (THEME) Conference, held in …
Last Updated Fri, 05/24/2024 - 23:46
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… Hydrogen gas explosions in homogeneous reactive mixtures have … There is still very limited understanding of the hydrogen explosion characteristics in such situations. The … to Detonation Transition, and the effect of different hydrogen concentration gradient in the obstructed channel of …
Last Updated Sat, 11/04/2017 - 04:27
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… Optical hydrogen safety sensors based on gasochromic thin films can be used to detect the presence of hydrogen by sensing a change in color of the films upon exposure to hydrogen gas in areas where hydrogen leaks are suspected. In …
Last Updated Fri, 05/24/2024 - 23:46
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… substances and its binary compounds used for full hydrogen combustion suppression. The work was performed in … containing substances capable of full suppression of hydrogen combustion were found in a series of small scale … be 12%2at 20 in a large scale experiments. … 1085 … Full Hydrogen Explosion Suppression Using Phlegmatization …
Last Updated Sat, 11/04/2017 - 04:27
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… to guarantee safety operational conditions for the hydrogen production from bioethanol. The key idea is to … all the available plant measurements. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. … … Low cost monitoring system for safe production of hydrogen from bio-ethanol …
Last Updated Sat, 11/04/2017 - 04:27
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… the way that we use fossil fuels. In this scenario, hydrogen is projected as the fuel of the future. Among the … multidimensional risk assessment for the transportation of hydrogen by pipeline. Thus, a multicriteria decision model is … Assigning priorities to actions in a pipeline transporting hydrogen based on a multicriteria decision model …
Last Updated Fri, 05/24/2024 - 23:46
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… Information Report for Fuel Systems in Fuel Cell and Other Hydrogen Vehicles?) has been created to address the safety performance of hydrogen storage and handling systems on vehicles. Safety qualification of the compressed hydrogen storage system is demonstrated through performance …
Last Updated Fri, 05/24/2024 - 23:46
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… is an important parameter in measuring the hazard of hydrogen detonation at given thermodynamic conditions. It’s … among the major tasks to evaluate DDTR in the study of hydrogen safety in a nuclear containment. With CFD tools, … some ideas on the procedure in safety analysis on hydrogen in nuclear containment. A hydrogen recombiner case …
Last Updated Fri, 05/24/2024 - 23:46
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… validate a detailed kinetic mechanism for the oxidation of hydrogen methane air mixtures in a detonation waves. A series … and the cell size. The effect of the initial composition, hydrogen to methane ratio and the amount of oxygen in the … size were investigated. The ratio of methane / (methane + hydrogen) varied between 0 and 0.6 for 2 different …
Last Updated Sat, 11/04/2017 - 04:27
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… High gas temperatures can be reached inside a hydrogen tank during the filling process because of the large … to reduce the temperature increase is to pre-cool the hydrogen before injecting it into the tank. Computational … assess the accuracy of the CFD model. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. …
Last Updated Sat, 11/04/2017 - 04:27
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… to prove the safety for the exhausted fittings of the hydrogen fuel cell vehicle. First, this study was approached … comparing with foreign fitting and foreign fitting for the hydrogen fuel cell vehicle. The result of this study was … but it need more test because of other situation for hydrogen fuel cell vehicle. … The Basic Study on the Leak …
