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Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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Latest News
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
Seon Jeong Huh (Kookmin Uniy), Joo Hyung Moon, Youngmin Bae, Young In Kim (KAERI), Hee Joon Lee (Kookmin Univ)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 844-848
Local condensation heat transfer coefficient inside a circular vertical tube was experimentally measured for the design purpose of an air-cooled shell and tube heat exchanger in long term passive cooling system. An experiment was conducted in a 1/2500-volume scaleddown model of the emergency cooldown tank (ECT) of the system integrated modular advanced reactor (SMART). While saturated vapor downstream (Ref < 30) flows in the shell side, air natural upstream flows in the tube side. The inner diameter and length of the tube were 261.4 mm and 1.8 m. The outer diameter of the shell was 318.5 mm. Eleven thermocouples were installed at 150 mm apart alongside the outer wall of SUS plate, a thickness of 3 mm, between vapor and air streams. During a performance evaluation of the shell and tube heat exchanger, the heat loss from the emergency cooldown tank was approximately 30% of the total heat load from 1.2 to 1.4 kW. Local condensation heat transfer coefficients were reduced by the Nusselt equation with ranging the quality from 1 to 0. With the range of mass flux from 0.1 to 0.2 kg/m2/s, condensation heat transfer coefficients were distributed at 110 ~ 350 W/m2/K. The experimental data was compared to the existing condensation heat transfer correlations. Among those, Shah correlation gave the best prediction of current experimental data with 54% average error. To increase the accuracy, new correlation is proposed based on the Dittus-Boelter equation and local quality in this study. New proposed correlation predicts current experimental data with 10% average error.