Last Updated Fri, 05/24/2024 - 23:46
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… and sodium hydroxide additives in the mitigation of hydrogen deflagrations. The results of the work suggest that … overpressure rise and narrowing the flammability limits of hydrogen-oxygen-nitrogen mixtures. … 1085 … The Mitigation of Hydrogen Explosions Using Water Fog, Nitrogen Dilution and …
Last Updated Wed, 08/21/2019 - 00:37
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… Element One, Inc., Boulder, CO is developing novel hydrogen gas leak indicators to improve the safety and maintenance operations of hydrogen production and chemical processing facilities and hydrogen fueling stations. These technologies can be used to …
Last Updated Sat, 11/04/2017 - 04:27
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… The concentration of hydrogen sulfide in the atmosphere of a sewage purification … factor of the spikes. Through simple remedial actions the hydrogen sulfide concentration associated with this activity … above 100 ppm to less than 2 ppm. Olfactory fatigue to hydrogen sulfide and strong offensive odors from other …
Last Updated Sat, 11/04/2017 - 04:27
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… If it is tried that new hydrogen energy applications reach a high degree of … the generalized knowledge in the field of safety, because hydrogen has been handled successfully for decades in the … activities is important to help in the construction of a hydrogen safety database. Additionally, the international …
Last Updated Fri, 05/24/2024 - 23:46
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… Over recent years, the spontaneous ignition from compressed hydrogen release has attracted considerable attention. Owing … Most previous studies on the topic considered compressed hydrogen release via a length of straight tube. However, … In the present study, spontaneous ignition of compressed hydrogen release through a length of tube with different …
Last Updated Fri, 05/24/2024 - 23:46
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… relief devices (PRDs) found in a typical high pressure hydrogen fueling station. It also provides steps in sizing … also explores the component availability landscape for hydrogen station designers and identifies opportunities for improvement in the supply chain of components as hydrogen fueling stations increase in number and size. …
Last Updated Sat, 11/04/2017 - 04:27
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… Commission co-funded Network of Excellence HySafe (Hydrogen Safety as an Energy Carrier, www.hysafe.org), five … numerical simulations of explosions of stoichiometric hydrogen-air mixtures in a 78.5 m long tunnel. The five … (SBEP). Since tunnels are semi-confined environments, hydrogen explosions in tunnels can potentially be critical …
Last Updated Fri, 05/24/2024 - 23:46
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… component failure and downtime during initial operation in hydrogen stations is not well understood. The National … been collecting failed components from retail and research hydrogen fueling stations in California and Colorado and … investigate the sources of particulate contamination in hydrogen stations. … 1085 … Adapted Tube Cleaning Practices …
Last Updated Sat, 11/04/2017 - 04:27
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… experimental observations have shown that pressurized hydrogen may be spontaneously ignited in downstream tubes of … rapid failure of a pressure boundary. The mixing between hydrogen and shocked air within the downstream tubes is … key process for the occurrence of spontaneous ignition of hydrogen. A direct numerical simulation has been conducted to …
Last Updated Sat, 11/04/2017 - 04:27
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… Because of the storage and safety of hydrogen on board vehicles, there still exist many problems; this paper introduces a system of hydrogen-rich gases and its application to an electronically controlled spark ignition engine. The hydrogen-rich gases from the designed reformer are produced …
Last Updated Sat, 11/04/2017 - 04:27
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… is developed to fabricate a highly sensitive and selective hydrogen sensor by depositing a partially crystalline and … metals) they exhibit a high sensitivity and selectivity to hydrogen gas. Unlike other metal oxide sensors which are … degrees C or higher, this sensor is highly selective to hydrogen gas and its operating temperature is from 25 to 150 …
Last Updated Fri, 05/24/2024 - 23:46
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… investigating the effect of ventilation airflow on hydrogen release behavior in an underground mining tunnel were performed using FLACS hydrogen. Both dispersion and combustion scenarios of a hydrogen release coming from a severed distribution pipeline …
Last Updated Sat, 11/04/2017 - 04:27
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… with a high efficiency of 90%2was satisfied in the hydrogen production technology. The power generation system of hydrogen-fueled gas turbine with the thermal efficiency of … phase II project, distributed technology such as the hydrogen-refueling station and the metal hydride tank system …
Last Updated Fri, 05/24/2024 - 23:46
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… on the extent of high pressure unignited jets of both hydrogen and methane is studied using computer fluid dynamics simulations performed with FLACS Hydrogen. Results for constant flow rate through a 6.35 mm … of a Vertical Surface on the Flammable Extent of Hydrogen and Methane Vertical Jets …
Last Updated Fri, 05/24/2024 - 23:46
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… acceleration and deflagration to detonation transition in hydrogen-air mixture and two detonation solvers. The former … and Transition From Deflagration to Detonation in Hydrogen Explosions …
Last Updated Fri, 05/24/2024 - 23:46
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… being paid by car manufacturers and the general public to hydrogen as a middle and long term energy carrier for … 6th frame-work program of the EU will be shown. … 1085 … Hydrogen Onboard Storage - An Insertion of the Probabilistic …
Last Updated Fri, 05/24/2024 - 23:46
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… shock, among others. The ignition of stoichiometric hydrogen-air mixtures was studied using 0D numerical … near the critical conditions. … 1085 … Ignition of Hydrogen-Air Mixtures Under Volumetric Expansion Conditions …
Last Updated Fri, 05/24/2024 - 23:46
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… In the transition to a hydrogen economy it is likely that hydrogen will be used or stored in closeproximity to other … that result in the release of two ormore fuels, such as hydrogen and natural gas, that can mix and form a hazard. A …
Last Updated Fri, 05/24/2024 - 23:46
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… We have investigated hydrogen explosion risk and its mitigation, focusing on … areas. In this study, numerical analyses were performed of hydrogen blastpropagation and the structural behavior of … equation. The initial energy estimated from the volume of hydrogen was a time-dependentfunction for the deflagration …
Last Updated Fri, 05/24/2024 - 23:46
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… of fuel infrastructure. Because of the relative newness of hydrogen as a fuel, however,appropriate emergency response … training effort is needed toensure that the future hydrogen infrastructure can be developed and operated with … site in Washington State to develop curricularelated to hydrogen properties and behavior, identification of problems …
