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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Oct 2024
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Nuclear Science and Engineering
November 2024
Nuclear Technology
Fusion Science and Technology
Latest News
A proactive approach to reactor vessel aging management
Unit 2 at the Prairie Island nuclear power plant near Red Wing, Minn., underwent an outage in fall 2023, which included extensive work on the reactor vessel using a novel approach to replace baffle-former bolts and lower radial clevis insert bolts. The work relied on extensive analysis beforehand to determine which bolts to replace such that only the new bolts were structurally credited for performance of their safety function. This proactive approach eliminated the need for costly contingencies associated with inspections.
Vamsi Krishna Kudapa, Paramjeet Singh Paliyal, Arnab Mondal, Surajit Mondal
Fusion Science and Technology | Volume 80 | Number 7 | October 2024 | Pages 803-825
Review Article | doi.org/10.1080/15361055.2023.2290898
Articles are hosted by Taylor and Francis Online.
Fossil fuels provide over 80% of the world’s current energy demand, which results in the release of large amounts of greenhouse gases (GHGs). In contrast to the emissions of GHGs caused by the combustion of fossil fuels, hydrogen combustion produces only water as a waste product. Hydrogen is a more environmentally friendly alternative fuel. The production of hydrogen energy has the potential to address energy security issues such as climate change and air pollution. There is an increasing global interest in hydrogen, particularly green hydrogen, which is produced by electrolyzing water using power derived from renewable resources. Because of falling hydrogen prices and the growing urgency of decarbonization, global demand for hydrogen, headed by the transportation and industrial sectors, might increase by about 400% by 2050. Furthermore, using environmentally friendly hydrogen will result in a reduction of 3.6 gigatonnes of total carbon dioxide emissions between 2020 and 2050. Hydrogen has the highest energy density of any known fuel, and it is widely available in enormous quantities all over the planet. It is possible that by 2050, India’s need for hydrogen will have increased by a factor of 4, accounting for more than 10% of global consumption. Steel and heavy-duty transportation are expected to account for more than 52% of overall demand growth between now and 2050. The overall market value for environmentally friendly hydrogen in India might reach $8 billion by 2030 and $340 billion by 2050. Because India’s capacity to create power from renewable sources is growing all the time, the country now can produce hydrogen from ecologically beneficial sources such as solar and wind when demand is low. Physical adsorption and polymer membranes can be employed to extract hydrogen from crude hydrogen polluted with hydrocarbons. This can be done to clean the crude hydrogen. The purity of hydrogen is an important aspect in determining whether it can be used in the energy production process. Unlike other types of separation technologies, membrane processes can be used in both mobile and small-scale applications. The membrane may function properly under a wide range of pressure and temperature extremes. The fundamental objective and goal of the separation membrane is to be used in membrane reactors for synchronous hydrogen production and purification. Other competing methods, such as pressure swing adsorption and cryogenic distillation, do not compare favorably to the membrane separation approach at lower operating temperatures. This is because membrane separation takes fewer resources than other competing technologies, particularly ones that have been around for a longer time. This article discusses the various membranes that can be used for substance separation, how hydrogen separation membranes can be made using a variety of technologies, the challenges that are inherent in doing so, and the prospects for the future, particularly in terms of increasing the efficiency of hydrogen separation.