Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… Fracture of materials caused by hydrogen embrittlement is a very serious problem in the operation of pipelines subjected to the effect of hydrogen charging (hydrosulfide-bearing media, external … stage of the process of crack propagation initiated by hydrogen. In order to predict the transition from a …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… As Europe is gradually moving towards a hydrogen based society it has been acknowledged that adding certain amount of hydrogen, as a clean energy carrier, to the existing natural … contribute to the greenhouse effect. On the other hand, hydrogen has been demonstrated to be able to change the …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… accident (LB-LOCA) in a nuclear power plant (NPP), hydrogen is generated by a reaction between steam and the … along with a large amount of steam. Management of hydrogen safety and prevention of over-pressurization could be implemented through a hydrogen mitigation system (HMS) and spray system in CPR1000 …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… results on the study of the accumulation of molecular hydrogen in radiation and radiation-thermal heterogeneous … … THE CONTRIBUTION OF RADIATION-HETEREGENEOUS PROCESSES TO HYDROGEN SAFETY OF WATER COOLED NUCLEAR REACTORS …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… A real-size calculation is performed for high-pressure hydrogen release in a tube using the axisymmetric Navier Stokes equations with the full hydrogen chemistry. A Harten Yee-type total variation … The mixing process and ignition behavior of high-pressure hydrogen are explained in detail; the velocity shear layer …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… steels, especially those of higher tensile strength, Hydrogen-Induced Stress Corrosion Cracking (HISCC) can lead … risk. The interaction of the steel with the diffusing hydrogen leads to changes in the material's properties that … for the early recognition of HISCC. … Early detection of hydrogen-induced stress corrosion cracking using …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… 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
Bibliography Entry
… of HCNG engine according to the high purity hydrogen contents. The HCNG fuel was made by the mixture with a high purity hydrogen (H2) and a natural gas. The test vehicle was applied … premixed HCNG fuels with mixed rate of 10, 20 and 30%2of hydrogen were used to maintain the safety. In order to …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… propagation. The energy released by the reaction between hydrogen andoxygen vaporizes suspended droplets. The next … taken into account by studying a gas mixturecontaining hydrogen, air and water vapor. A second study concerns an … … On the Use of Spray Systems - An Example of R&D Work in Hydrogen Safety for Nuclear Applications-Paper …
Last Updated Sat, 11/04/2017 - 04:27
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… for ignition in steady, counterflow, nonpremixed hydrogen-air systems, with varying degrees of nitrogen … temperature associated with the second explosion limit for hydrogen. Analysis of profiles of the radical pool at … Between Bifurcation and Numerical Analyses for Ignition of Hydrogen-air Diffusion Flames …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… test is an important prototype test in the standard of hydrogen storage vessels. It is designed to demonstrate the … was carried out on a composite vessel filled with hydrogen and the experimental results of temperature and … and numerical studies on the bonfire test of high-pressure hydrogen storage vessels …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… Delayed explosions of accidental high pressure hydrogen releases are an important risk scenario for safety … of CFD codes to reproduce explosions of high pressure hydrogen releases. In the first step the jet dispersion is … explosions are suggested. … 1085 … Delayed Explosion of Hydrogen High Pressure Jets: An Inter Comparison Benchmark …
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 Sat, 11/04/2017 - 04:27
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… Hydrogen is a promising fuel and is expected to replace … energy (MIE) on safety standards and ignition process of hydrogen air mixtures. Even though the formation of flame kernels in quiescent hydrogen-air mixtures has been researched numerically and …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… The numerical simulations on the high-pressure hydrogen jet are performed by using the unsteady … present numerical results show that the highly expanded hydrogen free jet observes and the distance between the Mach … equation. The numerical simulation of ignition in a hydrogen jet is performed to show the flame behaviour from …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… The numerical simulations on the high-pressure hydrogen jet are performed by using the unsteady … present numerical results show that the highly expanded hydrogen free jet observes and the distance between the Mach … equation. The numerical simulation of ignition in a hydrogen jet is performed to show the flame behaviour from …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… 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
Bibliography Entry
… 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
Bibliography Entry
… Hydrogen is currently gaining much attention as a possible … future substitute for oil in the transport sector. Hydrogen is not a primary energy source but can be produced from other sources of energy. A future hydrogen economy will need the establishment of new …
Last Updated Wed, 10/30/2024 - 19:34
Fuel Cell Codes and Standards
… intended for gravimetric determination of particulates in hydrogen intended as a fuel for fuel cell or internal … Gravimetric Measurement of Particulate Concentration of Hydrogen Fuel …
