ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Yuto Takeuchi, Yasushi Yamamoto, Satoshi Konishi
Fusion Science and Technology | Volume 52 | Number 3 | October 2007 | Pages 756-760
Technical Paper | The Technology of Fusion Energy - Nonelectric Applications | doi.org/10.13182/FST07-A1581
Articles are hosted by Taylor and Francis Online.
The paper proposes a conceptual design of hydrogen production system with unused biomass wastes and steam generated from high temperature nuclear power systems including fusion reactor. A reaction of interest is expressed as a formula, (C6H10O5)n + nH2O => 6nH2 + 6nCO, which is accompanied by a large quantity of endothermic reaction. Basic experiments have been made of thermal decomposition of cellulose, specimen as biomass resource, with the aid of high temperature steam of 1000 deg C heated by an infrared image furnace. The endothermic quantity was evaluated from a numerical model in which measured temperatures are employed. The numerical results for endothermic quantity agreed well with the theoretical value of 816 kJ/mol. To discuss the technical feasibility of the present process, the conceptual design of a hydrogen production reactor system of heat exchanger type was made with the numerical results and heat transfer correlations for helium and steam flow. The present biomass based process, producing both electricity and more hydrogen than other processes such as water or steam electrolysis using an equivalent quantity of heat source, is characterized as an efficient hydrogen production method using nuclear thermal energy, which simultaneously contributes to reduce biomass wastes.