We conducted a systematic study on neutronic characteristics of Tc-99 transmutation in pressurized water reactor (PWR) in this paper. We divided the core into three zones. The U-235 enrichment is 1.8%, 2.4% and 3.1% respectively. The loading patterns of Tc-99 include homogeneous loading and heterogeneous loading. In the homogeneous pattern, the mass fraction of Tc-99 raises from 0 to 2% stepped by 0.25%. The calculation result shows that the keff of the core decreases significantly when the Tc-99 mass fraction reaches 2%. In the practical situation, the Tc-99 mass should not exceed 2% in a homogeneous pattern. We choose the Tc-99 coating of fuel pellet as the transmutation rod form in the heterogeneous pattern, which can reduce the self-shielding effects. There are 44 transmutation rods per assembly, replacing part of fuel rods directly. We evaluate the effect of the arrangement of transmutation rods on the characteristic values such as keff and neutron spectrum of the core. In both homogeneous and heterogeneous patterns, the assembly flux near the outer edge of the core has an increasing trend. Our further study shows that much more epithermal neutrons and fast neutrons enter the reflecting layer and bounce back to the core again after moderation and reflection.
Skip Nav Destination
2013 21st International Conference on Nuclear Engineering
July 29–August 2, 2013
Chengdu, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5582-9
PROCEEDINGS PAPER
The Neutronic Transmutation Characteristics of Tc-99 in PWR Available to Purchase
Liming Huang,
Liming Huang
North China Electric Power University, Beijing, China
Search for other works by this author on:
Bin Liu,
Bin Liu
North China Electric Power University, Beijing, China
Search for other works by this author on:
Wenchao Hu,
Wenchao Hu
North China Electric Power University, Beijing, China
Search for other works by this author on:
Jing Tu
Jing Tu
Northwest Institute of Nuclear Technology, Xian, China
Search for other works by this author on:
Liming Huang
North China Electric Power University, Beijing, China
Bin Liu
North China Electric Power University, Beijing, China
Wenchao Hu
North China Electric Power University, Beijing, China
Jing Tu
Northwest Institute of Nuclear Technology, Xian, China
Paper No:
ICONE21-15301, V005T08A004; 7 pages
Published Online:
February 7, 2014
Citation
Huang, L, Liu, B, Hu, W, & Tu, J. "The Neutronic Transmutation Characteristics of Tc-99 in PWR." Proceedings of the 2013 21st International Conference on Nuclear Engineering. Volume 5: Fuel Cycle, Radioactive Waste Management and Decommissioning; Reactor Physics and Transport Theory; Nuclear Education, Public Acceptance and Related Issues; Instrumentation and Controls; Fusion Engineering. Chengdu, China. July 29–August 2, 2013. V005T08A004. ASME. https://doi.org/10.1115/ICONE21-15301
Download citation file:
7
Views
Related Proceedings Papers
Related Articles
Neutronic Analysis and Fuel Cycle Parameters of Transuranic-UO 2 Fueled Dual Cooled VVER-1000 Assembly
ASME J of Nuclear Rad Sci (April,2024)
An Analysis of Polymer Coated Metal Rod Extrusion
J. Manuf. Sci. Eng (February,2009)
Validation Facility and Model Development for Nuclear Fuel Assembly Response to Seismic Loading
ASME J of Nuclear Rad Sci (October,2015)
Related Chapters
Surface Analysis and Tools
Tribology of Mechanical Systems: A Guide to Present and Future Technologies
Chitosan-Based Drug Delivery Systems
Chitosan and Its Derivatives as Promising Drug Delivery Carriers
Solidification of Molten Surface Coating on a Semi-Infinite Solid Substrate
Case Studies in Transient Heat Transfer With Sensitivities to Governing Variables