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
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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 since 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. local time 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.”
Mujid S. Kazimi
Nuclear Technology | Volume 160 | Number 1 | October 2007 | Page 1
Technical Paper | Annular Fuel | doi.org/10.13182/NT160-1-1
Articles are hosted by Taylor and Francis Online.
This special issue of Nuclear Technology is devoted to evaluation of a new fuel design for the pressurized water reactor (PWR). It has a potential to increase the safety margin and power density of this most widely deployed type of power reactor. The idea is simple and involves increasing the surface-to-volume ratio of the fuel by adopting an annular geometry with internal and external cooling of the fuel. Undertaken with support from the initial phase of the Nuclear Energy Research Initiative (NERI) of the U.S. Department of Energy, the idea has undergone a thorough examination by researchers from Massachusetts Institute of Technology with industrial support from Westinghouse, Gamma Engineering, AREVA, and Atomic Energy of Canada Limited. This dedicated issue provides an inclusive technical review and economic assessment of the project in nine technical papers from the project team members. Hence, conclusions of this research have been documented in one archival location, which we hope will be of value to the technical community.The United States led the world in the development of the PWR, and this technology won over many countries, including some that began the nuclear energy era with focus on other concepts. Today the world appears ready for another phase of expansion in nuclear energy, which likely will be based in large part on PWR technology. While many aspects of the primary coolant system and even the containment design have been revamped in the recently developed Generation III reactors, the fuel has been left in its original form. Yet, it is the fuel performance that controls the power that can be extracted from the core and the response to transients, in other words, the economics and safety of the power plant. Therefore, the PWR fuel deserves a much more thorough examination for innovations that enable improved performance of nuclear energy in the next few decades.The annular fuel development for PWRs is an example of near-term research and development effort that has essentially been abandoned by both the U.S. government and industry. The U.S. government had decided that the PWR technology was mature and should not be given more development funding; the industry had decided that to change the fuel implies starting a new learning curve to ensure high degree of reliability, and until very recently had no intention of covering the cost of going after such fundamental changes in nuclear technology. Well, the market for nuclear has now expanded, and the investment in changes in the fuel that can bring about increased safety or economics can no longer be cast aside because of limited potential return on investment. Hopefully, fuel vendors and users will benefit from the extensive work documented in this issue.