Last Updated Thu, 05/30/2024 - 23:17
Best Practice
… by Testing When designing a component for use in a hydrogen environment, testing (i.e., direct exposure of the material to hydrogen) and analysis ideally would be done to assure … of assessing a material’s performance is by testing it in hydrogen gas following standardized practices such as …
Last Updated Fri, 05/31/2024 - 04:37
Best Practice
… Storage Vessels Stationary aboveground storage for gaseous hydrogen generally consists of multiple cylindrical pressure … a frame and installed on a concrete foundation. A typical hydrogen storage cylinder is elongated and may be mounted … storage. For information on material selection for gaseous hydrogen vessels, please see Material Compatibility . …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… Metal hydrides are used for hydrogen storage. AlH3 shows a capacity of about 10wt%2and the hydrogen is split-off in the temperature interval of … from this Al oxidation induces a high risk to this type of hydrogen storage if the containment might be destroyed, …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… The leakage of methane and sulfureted hydrogen in the tunnel may threaten the environment, safety … to acquire the concentration of methane and sulfureted hydrogen. The results show that the remote sensing can reach … with the detectability of methane 2ppm and sulfureted hydrogen 20ppm respectively. This system is carried out in …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… The use of hydrogen as a fuel for commercial vehicles is in its infancy. Hydrogen promises a number of unique advantages over … renewable and independent from foreign producers. Hydrogen fueled vehicle demonstration projects must satisfy …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… and establishing nuclear heat utilisation technology by a hydrogen production demonstration test. The safety … the second phase tests are planned to start in FY 2006. A hydrogen production facility will be connected to the HTTR for the hydrogen production demonstration test to establish the …
Last Updated Sat, 11/04/2017 - 04:27
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… Fuel cell bus with hydrogen tanks on its roof is different from traditional one. … will menace the occupants' safety, and in addition, the hydrogen leaking will threaten the lives of the occupants. So … of body structure would not hurt the Occupants, and the hydrogen pipelines would not have gas leakage. In the light …
Last Updated Mon, 06/10/2024 - 20:46
Team
… and Forensic Scientist. One of the original members of the Hydrogen Safety Panel, Dr. Beeson received his Doctorate in … that developed the NASA propellant safety manuals for hydrogen and oxygen and has been an instructor for NASA and industry in courses on hydrogen safety and oxygen safety. Harold has experience in …
Last Updated Wed, 06/12/2024 - 17:24
Best Practice
… If you are new to designing experiments that utilize hydrogen, we suggest you read through all of the subsections … the potential for a large gas release inside the facility, hydrogen is generally supplied to the indoor facility from an … described in Facility Design and Construction and Hydrogen System Components are applicable to the outdoor …
Last Updated Fri, 05/31/2024 - 20:57
Best Practice
… Venting Hydrogen storage facilities should be equipped with venting … requirements and emergency situations. Vent lines for hydrogen (including pressure relief lines and boil-off from … outside location. Vent lines are also used to dispose of hydrogen purged from the system for maintenance. The vent …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… establish a set of design and operational requirements in hydrogen codes and standards that will ensure safe operation of hydrogen facilities. By analyzing a complete set of possible … the potential consequences from unintended releases of hydrogen. Mitigation features can be either passive or active …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… safety of a fusion reactor. The diffusion coefficient of hydrogen in cement paste is obtained by using the permeation … study, and it is found that the diffusion coefficient of hydrogen in the cement paste is only one order magnitude smaller than the diffusion coefficient of hydrogen in air. Calculation using the diffusion coefficient …
Last Updated Thu, 05/30/2024 - 22:57
Best Practice
… Small pressure vessels for storage and containment of hydrogen gas are sometimes referred to simply as cylinders or … fitting at the top for connection. Typically, the largest hydrogen cylinders are made of steel and are ~229mm x 1,524mm (9in x 5ft) and ~64kg (140lb). Hydrogen cylinders have an outlet connection that is specific …
Last Updated Tue, 03/03/2020 - 18:16
Bibliography Entry
… first was to produce a video comparing the severity of a hydrogen and gasoline fuel leak and ignition. The second was to determine why the hydrogen flames videotaped were so easily visible. The …
Last Updated Thu, 05/30/2024 - 22:35
Best Practice
… permit the use of materials that have low to intermediate hydrogen embrittlement (HE) resistance. These methods are … The calculation requires material property measurements in hydrogen gas: threshold stress-intensity factor (KTH) and … steels and aluminum alloys are the best candidates for hydrogen service. Based on previous service experience and …
Last Updated Fri, 05/31/2024 - 04:10
Best Practice
… made of acceptable materials is extremely important for hydrogen applications. Use of a positive material … program is recommended for equipment (See Note below.) in hydrogen service. Verification of metal alloys using either … and fast. For metallic components to be used in hydrogen service, consideration should be given to …
Last Updated Tue, 03/29/2022 - 19:22
Best Practice
… ventilation intakes, and protected from vehicle impact. Hydrogen storage separation distance requirements are typically based on the quantity and pressure of the hydrogen or the piping diameter, depending on the type of … containers to prevent interaction during an unintended hydrogen release. More detailed guidance can be found in the …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… bottleneck. Pyrolytic steam, which is generated from hydrogen and oxygen combustion, was the default process, but … safety, particles, permitting, reduced growth rate, rapid hydrogen consumption, component breakdown and limited steam … time and enable expansion previously limited by local hydrogen permitting. Data was gathered to determine whether …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… of tungsten brush in steam between 500 and 1100 degreesC. Hydrogen generation and tungsten volatilization rates were … rods had a packing density of 85%2 We found that both hydrogen generation and tungsten volatilization from brush, … total surface area (TSA). Steam access and the escape of hydrogen and volatile oxide from void spaces within the brush …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… industrial real-life indoor and outdoor flammable gas (hydrogen, methane, etc.) release scenarios with complex … flow rates and the releases of various gases, e.g., hydrogen, helium, etc. GRAD CFD software is recommended for … protection analyses. For example, it was applied to the hydrogen safety assessments including the analyses of …
