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… between the heat energy and mechanical energy of a hydrogen absorbing alloy has recently attracted much … of medical and rehabilitation equipment. … Application of hydrogen absorbing alloys to medical and rehabilitation …
Last Updated Fri, 05/24/2024 - 23:46
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… Experiments with a hydrogen jet were performed at two different pressures, 96 psig (6.6 bars) and 237 psig (16.3 bars). The hydrogen leak was generated at two different hole sizes, 1/16 … plume was characterised by numerous measurements of the hydrogen concentration inside of the jet. The effect of the …
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… literature was performed to determine the effects of high hydrogen purity and gas pressure (in the range of 700-1000 bar) on the hydrogen embrittlement of several metallic materials. A … for future testing necessary to ensure the safety of hydrogen storage at 700 bar. … 1085 … Effects of Purity and …
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… accidents in Pressurized Water Reactors, a great amount of hydrogen can be released, the resulting heterogeneous gaseous mixture (hydrogen-air-steam) can be flammable or inert and the … of the interaction between fine water droplets and a hydrogen-air flame. We present in this paper an unsteady …
Last Updated Fri, 05/24/2024 - 23:46
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… community is critical to the successful introduction of hydrogen fuel cell applications and their transformation in … knowledge is essential to the delivery of effective hydrogen and fuel cell-related first responder training. The … over 15 years of experience in developing and delivering hydrogen safety-related first responder training materials …
Last Updated Sat, 11/04/2017 - 04:27
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… The hydrogen economy is still at the beginning but the society, innovation, and market push inexorably towards hydrogen, inspiring the idea to build an energy integrated … a metal hydride tank, that absorbs and desorbs hydrogen, and a polymer fuel cell. The system modularity can …
Last Updated Fri, 05/24/2024 - 23:46
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… We present results from hydrogen dispersion simulations from a pressurized reservoir … are calculated for subcritical horizontal and vertical hydrogen jets and in the latter case, compared to available experimental data. … 1085 … Simulations of Hydrogen Releases From a Storage Tanks: Dispersion and …
Last Updated Sat, 11/04/2017 - 04:27
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… to obtain effective diffusion coefficients of helium and hydrogen (released as forming gas for safety reasons) through … from the experimental data. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. … of effective diffusion coefficients of helium and hydrogen through gypsum …
Last Updated Fri, 05/24/2024 - 23:46
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… simulations of detonation deflagration transition (DDT) in hydrogen-air mixtures are presented and compared with … are provided in the paper. … 1085 … Simulation of DDT in Hydrogen-Air Behind a Single Obstacle …
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… United States, has been tasked to evaluate the safety of hydrogen in various operations and processes of the World … … Computer simulation of explosion of a pressurized hydrogen storage tank …
Last Updated Fri, 05/24/2024 - 23:46
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… template for educating and training first responders about hydrogen fuel cell-powered vehicles (FCV) and hydrogen fueling infrastructure. Currently, there are several … existing programs that either have some related FCV/hydrogen material, or have plans to incorporate this in the …
Last Updated Sat, 11/04/2017 - 04:27
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… The focus of this paper is the simulation of lifted hydrogen jet fires. The computational modelling of … flow properties is not universal. The simulation of hydrogen jet fires is an interesting and current area of … and the potential to address this problem with "The Hydrogen Economy" concept. To utilise hydrogen successfully …
Last Updated Sat, 11/04/2017 - 04:27
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… of carbon monoxide, a common byproduct of most common hydrogen production methods, requires storage of a large quantities of hydrogen/carbon monoxide mixture in high pressure tanks. The … The presence of CO in the mixture required reassessment of hydrogen flammability limits, although the correction proved …
Last Updated Fri, 05/24/2024 - 23:46
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… In our society the use of hydrogen is continually growing and there will be a … kinds of plants to protect our town inhabitants Moreover, hydrogen is a highly flammable chemical that can be … used in safety and risk studies are not validated for hydrogen use. This aspect may imply that the results of …
Last Updated Sat, 11/04/2017 - 04:27
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… thermal radiation hazard safety boundaries from ignited hydrogen plumes are based on models previously developed for … heat flux measurements of small- and medium-scale hydrogen jet flames (i.e., visible flame lengths … LARGE-SCALE HYDROGEN JET FLAME RADIANT FRACTION MEASUREMENTS AND MODELING …
Last Updated Sat, 11/04/2017 - 04:27
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… to develop new sensors and sensing technology for future hydrogen powered fuel cell vehicles. The first device is an … methods. This sensor has been designed to detect hydrogen in air and may serve in safety systems for vehicles or as a component of hydrogen infrastructure. The second device relies on a swept …
Last Updated Sat, 11/04/2017 - 04:27
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… cycle life and safety characteristics of the nickel-hydrogen chemistry while eliminating the high pressure limitations of conventional nickel-hydrogen cells, a microfabricated nickel-hydrogen battery using a low-pressure metal hydride for …
Last Updated Fri, 05/24/2024 - 23:46
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… A possible consequence of pressurized hydrogen release is an under-expanded jet fire. Knowledge of … code FireFOAM to study the radiation characteristics of hydrogen and hydrogen/methane jet fires. For combustion, the eddy …
Last Updated Sat, 11/04/2017 - 04:27
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… In order to reduce green house gases, hydrogen fueled vehicles are expected to be commercialized in the near future. Hydrogen is nontoxic, but it is flammable. A relatively low ignition energy can ignite a hydrogen-air mixture when the concentration of hydrogen is …
Last Updated Sat, 11/04/2017 - 04:27
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… thin films of Pd/WO3 for application in optical hydrogen safety sensors were prepared by sputtering. Raman … Sputtered films show somewhat lower sensitivity to hydrogen gas than evaporation-prepared films, as determined … transmittance when the films are alternately exposed to hydrogen and air, was much improved for the …
