Last Updated Fri, 05/24/2024 - 23:46
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… mechanical properties of X52 gas pipe steel in presence of hydrogen and its consequence on defect assessment … determine if the transport of a mixture of natural gas and hydrogen in the actual existing European natural gas pipe … Defect Assessment on Pipe Used for Transport of Mixture of Hydrogen and Natural Gas …
Last Updated Sat, 11/04/2017 - 04:27
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… code DET3D is described which has been used for simulating hydrogen detonations in complex three-dimensional geometries … good agreement between calculation and experiment: (i) a hydrogen-air detonation in a 12 m long straight tube with a … All rights reserved. … DET3D - A CFD tool for simulating hydrogen combustion in nuclear reactor safety …
Last Updated Sat, 11/04/2017 - 04:27
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… thermodynamics of gases, the hypothesis states that hydrogen should cool 50%2faster than nitrogen and hydrogen should cool 17%2faster than helium. [GRAPHICS] With … working to understand high pressure cooling properties of hydrogen. Safety issues, of course, must be resolved when …
Last Updated Sat, 11/04/2017 - 04:27
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… There is increasing interest in the use of hydrogen as an energy carrier. A hydrogen delivery system is required, and one solution is its … vessel with and without pipe congestion, demonstrate that hydrogen addition can have a significant effect on …
Last Updated Fri, 05/24/2024 - 23:46
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… to obtain effective diffusion coefficients of helium and hydrogen (released as forming gas for safety reasons) through … of Effective Diffusion Coefficient of Helium and Hydrogen Through Gypsum …
Last Updated Sat, 11/04/2017 - 04:27
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… We investigated the dependence of hydrogen sensing on the hydrogen density at 0.1-100 vol%2in air atmosphere by … that the Q-gauge pressure reading depends on the hydrogen concentration for concentrations up to 100 vol%2and …
Last Updated Fri, 05/24/2024 - 23:46
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… The transition period towards the situation in which hydrogen will become an important energy carrier will be … effort. It?s clear, therefore, that the development of a hydrogen system requires a practical strategy within the … is a logical first step towards the widespread delivery of hydrogen. The project will define the conditions under which …
Last Updated Fri, 05/24/2024 - 23:46
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… The paper will present results of hydrogen/oxygen mixtures ignited by using electric sparks, … limit (LFL) was done for each ignition method. The hydrogen mixtures of different concentrations were ignited at … limits higher than the known LFL of 4%2vol. for hydrogen in air. The paper will describe the test facilities …
Last Updated Fri, 05/24/2024 - 23:46
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… Commercial use of hydrogen on-board fuel cell vehicles necessitates the compression of hydrogen gas up to 700 bar, raising unique safety challenges. … to be addressed include jet fires from high-pressure hydrogen on-board storage. Previous studies investigated …
Last Updated Sat, 11/04/2017 - 04:27
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… Alice Hamilton described fatal work injuries from acute hydrogen sulfide poisonings in 1925 in her book Industrial … 1984 to 1994 for mention of hazardous substance 1480 (hydrogen sulfide). There were 80 fatalities from hydrogen sulfide in 57 incidents, with 19 fatalities and 36 …
Last Updated Sat, 11/04/2017 - 04:27
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… incurring serious damage caused by a detonation of the hydrogen/air-mixture generated during a severe accident in … (LWR) passive autocatalytic recombiners (PAR) are used for hydrogen removal in an increasing number of European plants. These devices make use of the fact that hydrogen and oxygen react exothermally on catalytic surfaces …
Last Updated Fri, 05/24/2024 - 23:46
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… to predict deflagration in homogenous, near stoichiometric hydrogen-air mixture in a model of a tunnel were tested. The tunnel is 78.5 m long. Hydrogen-air mixture is located in a 10 m long region in the … … 1085 … Evaluation of the ADREA-HF CFD Code Against a Hydrogen Deflagration in a Tunnel …
Last Updated Sat, 11/04/2017 - 04:27
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… This paper presents the modeling of low-concentration hydrogen deflagrations performed with the recently developed … to be analyzed. The tests allow studying lean mixture hydrogen combustion at normal ambient, elevated temperature … undertaken. (C) 2012 Elsevier B.V. All rights reserved. … Hydrogen deflagration simulations under typical containment …
Last Updated Fri, 05/24/2024 - 23:46
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… The potential for particulates entrained in hydrogen releases to generate electrostatic charge and induce … investigated. A series of tests were performed in which hydrogen was released through a 3.75-mm-diameter orifice from … particulates is a viable self-ignition mechanism of hydrogen releases. … 1085 … Self-Ignition of Hydrogen Jet …
Last Updated Fri, 05/24/2024 - 23:46
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… crisis and environment pollution growing severely, the hydrogen fuel motor vehicle has got more and more attention, … significant R&D resources to research and develop the hydrogen fuel vehicles. With the development of the hydrogen fuel cell vehicles and hydrogen fuel motor vehicles, …
Last Updated Fri, 05/24/2024 - 23:46
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… temperatures on the fatigue strength of compressed-hydrogen tanks for vehicles was investigated. The fatigue … of Temperature on the Fatigue Strength of Compressed Hydrogen Tanks for Vehicles …
Last Updated Fri, 05/24/2024 - 23:46
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… risks to the environmentsdue to burning of fossils fuels, hydrogen is seen as an efficient and application related … of applicationsconnected with production and use of hydrogen and the related risks have been identified, anda … potential lack of necessary knowledge in order to handle hydrogen in a safe wayconcerning the various applications.The …
Last Updated Tue, 05/14/2024 - 19:39
Document Library
… This report provides an evaluation by members of the Hydrogen Safety Panel (HSP) of the June 1, 2019 hydrogen release incident at the Air Products and Chemicals Inc. (Air Products) hydrogen trailer transfill (transfill) facility located in …
Last Updated Sat, 11/04/2017 - 04:27
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… tools. The research considers an introduction of a leak of hydrogen inside the vehicle, and its dispersion for a set of typical ventilation conditions is analyzed. The leak of hydrogen has been modelled according to the properties of hydrogen and depending on the pressure difference between the …
Last Updated Fri, 05/24/2024 - 23:46
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… For hydrogen fueled vehicles to attain significant market … acceptable levels. To achieve this goal, on-board vehicle hydrogen storage systems should undergo risk analyses during … being researched. Collision of a vehicle having such a hydrogen storage system was selected as a dominant accident …
