Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… Hydrogen gas concentrations and jet velocities were measured … and ignitability for 40 to 82 MPa high-pressurized hydrogen jet which was discharged from the nozzle with 0.2mm … from both OH radical and water vapor species yielded from hydrogen combustion ignited by an electric spark were …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… in the HYPER project (Installation Permitting Guidance for Hydrogen and Fuel Cells Stationary Applications) [1]. The … permitting guidelines (IPG) for small stationary hydrogen and fuel cell systems is discussed. A key aim of the … activities was to generate new knowledge in the field of hydrogen safety, and, where possible, use this data as a …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… bed system (Au/Fe2O3 + Pt-Pd/Al2O3) for eliminating hydrogen from the CO2 feed gas in urea synthesis is found to … in catalytic activity. At relatively low temperatures, hydrogen is eliminated and coexistent CO is also oxidized … This can avoid effectively the accidental explosion of hydrogen-oxygen-ammonia mixed gases, thus ensuring the safety …
Last Updated Fri, 05/24/2024 - 23:46
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… determine critical semi-open channel height (h*) in which hydrogen-air detonation may propagate. Three types of gaseous … mixture composition were used: 25%2 29.6%2and 40%2of hydrogen in air. Experimental setup was based on rectangular … reaches 3.1 or 3.6 for mixtures with 25%2and 40%2of hydrogen in air respectively. … 1085 … Experimental …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… The safety issues related to explosion venting of hydrogen-air mixtures are significant and deserve more detailed investigation. Vented hydrogen-air explosion has been studied extensively in … In this paper, experiments about explosion venting of rich hydrogen-air mixtures were conducted in a cylindrical vessel …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… between experimental data and simulation results of hydrogen explosions in a vented vessel is described in the … Commission co funded Network of Excellence HySafe (Hydrogen Safety as an Energy Carrier) that has the objective to facilitate the safe introduction of hydrogen technologies The mitigation effect of vents on the …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… propagation, acceleration and transition to detonation in hydrogen-air mixture in 2 m long rectangular cross section … bottom wall was performed. The initial conditions of the hydrogen-air mixture were 0.1 MPa and 293 K. Three different … … 1085 … Fast Turbulent Deflagration and DDT of Hydrogen-Air Mixtures in Small Obstructed Channel …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… flame exposure tests (bonfire tests) on high-pressure hydrogen gas cylinders that are safe and have high accuracy … Because substitutive gas properties differ from those of hydrogen gas, we concluded that using substitutive gases … tests. … Cfd Analysis of Fire Testing of Automotive Hydrogen Gas Cylinders With Substitutive Gases …
Last Updated Fri, 05/24/2024 - 23:46
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… methodologies on an agreed predefined hypothetical gaseous hydrogen fueling station, the BBC station (Benchmark Base … information used in the QRA steps specifically related to hydrogen. Within this internal project, partners NCSRD and … spatial and transient evolution of the formed flammable hydrogen-air clouds in the realistic geometry were provided …
Last Updated Tue, 09/17/2024 - 00:37
Fuel Cell Codes and Standards
… (natural gas, liquefied petroleum gas, propane, butane, hydrogen etc.) or liquid fuel (kerosene, methanol etc.); • oxidant: air. …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… out the real explosion reasons of the 300 m(3) wet-gas hydrogen holder in a power company, Disaster Prevention … accident of the 300m(3) flammahle and explosive wet-gas hydrogen holder …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… compressed natural gas (CNG) and later a blend of CNG and hydrogen. Of the other three vehicles, one was fueled with pure hydrogen and two were fueled with a blend of CNG and hydrogen. The three blended-fuel vehicles were originally …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… was performed within the Hylndoor project, to study hydrogen release and dispersion in a confined space with … for this benchmark. In all three tests helium (instead of hydrogen for safety reasons) was released vertically upwards … part of the enclosure at steady state. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… The detonation propensity of hydrogen-air mixtures with addition of methane, ethane or … RSB and parameters. Results are presented as a function of hydrogen molar fraction. Computations were performed with the … … 1085 … Numerical Analysis of Detonation Propensity of Hydrogen-Air Mixtures with Addition of Methane, Ethane or …
Last Updated Thu, 09/12/2019 - 23:40
Bibliography Entry
… to speculate on possible safety risks originating from a hydrogen economy developed in the future. Tools that support … risks related to energy scenarios in a possible future hydrogen economy. … 1085 … Agent-based As an Alternative To Prognostic Modeling of Safety Risks in Hydrogen Energy Scenarios …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… electron donor. In this study, the possibilities for using hydrogen gas in aquaria systems as a harmless alternative to … safety issues regarding the storage of large volumes of hydrogen gas, in situ generation of hydrogen gas by means of a separate electrochemical cell was …
Last Updated Sat, 11/04/2017 - 04:27
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… Due to the importance of hydrogen attack regarding the safety and competitivity of the … industry, and to the lack of experimental data on hydrogen-creep interaction, a dedicated testing rig has been … which allows high internal pressure tube testing with hydrogen at elevated temperatures. The tubes, being under …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… paper the two-stage model of detonative combustion of hydrogen is presented. The following improvements are … model; sample calculations of the detonation wave in hydrogen/air mixtures in wide range of conditions, showing … simulations of the detonation cell are presented for the hydrogen/oxygen/argon mixture as example to show the …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… permitting guidelines (IPG) for small stationary hydrogen and fuel cell systems is discussed. A key aim of the … generate new scientific data and knowledge in the field of hydrogen safety, and, where possible, use this data as a … in the event of a foreseeable leak, the concentration of hydrogen in air for zone 2 ATEX is not exceeded. The hazard …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… Jet fires develop on release of hydrogen from pressurized storage depending on orifice, … of the reaction with air. … 1085 … Radiation From Hydrogen Jet Fires Investigated by Time-Resolved Spectroscopy …
