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Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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Former Exelon CEO Chris Crane remembered for “transformational milestones”
Crane
Exelon announced that Chris Crane, the company’s former chief executive, passed away on Saturday in Chicago at the age of 65.
Crane served as the company’s president and CEO from 2012 until his retirement in December 2022. During his tenure, he steered the energy company through several transformational milestones, including the successful mergers with Constellation Energy in 2012 and Pepco Holdings in 2016, creating the largest utility business by customer count in the United States.
In 2022, with the spin-off of Constellation as the generation and retail side of energy business (with the largest U.S. nuclear fleet), Crane led the creation of a stand-alone transmission and delivery energy company.
Mingjun Wang, Tangtao Feng, Ping Song, Wenxi Tian, G. H. Su, Suizheng Qiu (Xi’an Jiaotong Univ)
Proceedings | Advances in Thermal Hydraulics 2018 | Orlando, FL, November 11-15, 2018 | Pages 965-976
In this paper, the detailed thermal mixing characteristics of the two-phase stratified flow in a 45° T-junction were studied with complicated direct contact condensation. The feasibility of CFD model on the two phase mixing process was validated against the experimental data obtained from the XJTU-ECCS apparatus. Results show that the established two-phase CFD model can predict the mixing process correctly during the ECC safety injection with the matched grid, exact boundary conditions and a proper set of mathematical model. Moreover, with a comparison between the condensation rate and the experimental data under different Rt numbers, it was found that the error range of numerical results turned out to be lower than 28%. The condensation rate during the ECC injection was closely related to the Rt number, and the linearity degree between the condensation rate and Rt number was high when the cooling capacity of injection coolant was insufficient. This study summarized a fitting correlation according to simulation results, which can be used to predict the condensation rate in case that the Rt number is lower than 0.55.
