Review
Energy & Fuels
Susmi Anna Thomas, Abhinandan Patra, Badria M. Al-Shehri, Manickam Selvaraj, Arun Aravind, Chandra Sekhar Rout
Summary: This article thoroughly discusses the research on MXenes and their hybrids with other materials in the field of supercapacitor applications, including their fundamental properties, synthesis strategies, and etching procedures. It also focuses on the current developments, challenges, and future perspectives, as well as the research gap in this field.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Nursultan E. Sagatov, Dinara N. Sagatova, Pavel N. Gavryushkin, Konstantin D. Litasov
Summary: Ab initio calculations and crystal structure prediction algorithms were used to determine the structure and stability of iron-nitrogen compounds under different pressure and temperature conditions. Three new iron nitrides were predicted. Some iron nitrides can be stable under Earth's inner core pressures and temperatures, but they are not the major compounds in the inner core.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Nuclear Science & Technology
Koki Hibi, Kunihiro Itoh, Kazuo Ikeda, Kenji Konashi
Summary: The study proposes a design for using zirconium hydride in fast reactors to achieve MA transmutation, reducing stored Am while transmuting irradiated elements. By altering the Am/(Zr + Am) ratio of the target, two types of cores can be designed for different transmutation phases.
NUCLEAR ENGINEERING AND DESIGN
(2021)
Review
Plant Sciences
Hang Su, Igor A. Yakovlev, Andre van Eerde, Jianguo Su, Jihong Liu Clarke
Summary: Aquaculture industry has developed rapidly, but high fish densities increase the risks of aquatic diseases and ecological hazards. There is an urgent need for further development of fish vaccines to ensure fish health and food safety. Plant biotechnology offers a cost-effective and safe approach for vaccine production, with potential benefits for aquaculture, fish health management, and human health.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Nuclear Science & Technology
Tanja Goricanec, Ziga Stancar, Domen Kotnik, Luka Snoj, Marjan Kromar
Summary: A detailed geometrical model of a Krsko reactor core was developed using a Monte Carlo neutron transport code MCNP for future research on ex-core calculations. The developed core model was validated by comparing to CORD-2 calculations for power density distribution.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Giovanni Bonny, Alexander Bakaev, Konstantina Lambrinou
Summary: In this study, a high-throughput density functional theory (DFT) screening is used to identify interesting M(2)AX phase compounds for nuclear applications based on their mechanical stability. The evaluation of mechanical stability allows for the assessment of thermodynamically unstable phases without the need to assess competing MX and intermetallic phases. The results provide the basis for plasticity or fracture mechanics models for MAX phases.
COMPUTATIONAL MATERIALS SCIENCE
(2022)
Article
Engineering, Chemical
Haribandhu Chaudhuri, Yeoung-Sang Yun
Summary: Researchers have made significant progress in the synthesis and application of two-dimensional materials, providing promising solutions for environmental issues. Multifunctional composite materials, such as GO/LDHs and GO/MXenes, have shown excellent performance in adsorption, photocatalysis, and electrocatalysis for environmental applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Energy & Fuels
Mark R. Gilbert
Summary: Nuclear data is crucial for fusion experiments and future fusion power plants, as it provides information on neutron reaction probabilities and decay behavior. Inventory codes that use this data to predict the effects on materials are also important for managing radiological hazards and determining component lifetimes. Validated and accurate nuclear data and inventory codes are essential for the safe and efficient operation of fusion reactors.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Nuclear Science & Technology
Jing-Yu Tang, Qi An, Jiang-Bo Bai, Jie Bao, Yu Bao, Ping Cao, Hao-Lei Chen, Qi-Ping Chen, Yong-Hao Chen, Zhen Chen, Zeng-Qi Cui, Rui-Rui Fan, Chang-Qing Feng, Ke-Qing Gao, Xiao-Long Gao, Min-Hao Gu, Chang-Cai Han, Zi-Jie Han, Guo-Zhu He, Yong-Cheng He, Yang Hong, Yi-Wei Hu, Han-Xiong Huang, Xi-Ru Huang, Hao-Yu Jiang, Wei Jiang, Zhi-Jie Jiang, Han-Tao Jing, Ling Kang, Bo Li, Chao Li, Jia-Wen Li, Qiang Li, Xiao Li, Yang Li, Jie Liu, Rong Liu, Shu-Bin Liu, Xing-Yan Liu, Ze Long, Guang-Yuan Luan, Chang-Jun Ning, Meng-Chen Niu, Bin-Bin Qi, Jie Ren, Zhi-Zhou Ren, Xi-Chao Ruan, Zhao-Hui Song, Kang Sun, Zhi-Jia Sun, Zhi-Xin Tan, Xin-Yi Tang, Bin-Bin Tian, Li-Jiao Wang, Peng-Cheng Wang, Zhao-Hui Wang, Zhong-Wei Wen, Xiao-Guang Wu, Xuan Wu, Li-Kun Xie, Xiao-Yun Yang, Yi-Wei Yang, Han Yi, Li Yu, Tao Yu, Yong-Ji Yu, Guo-Hui Zhang, Lin-Hao Zhang, Qi-Wei Zhang, Xian-Peng Zhang, Yu-Liang Zhang, Zhi-Yong Zhang, Lu-Ping Zhou, Zhi-Hao Zhou, Ke-Jun Zhu
Summary: Back-streaming neutrons from the spallation target of the China Spallation Neutron Source were utilized to build a white neutron beam facility, which provides a high-intensity neutron beam with excellent energy spectrum and time resolution. The facility is equipped with advanced spectrometers, detectors, and application utilities, making it suitable for a wide range of applications, particularly neutron-induced cross-sectional measurements.
NUCLEAR SCIENCE AND TECHNIQUES
(2021)
Article
Nuclear Science & Technology
P. Agostini, R. Coppola, M. Hofmann, C. Ohms, K. Tucek
Summary: This study non-destructively determined the stress distribution in a model weld used for nuclear application using neutron diffraction. The results showed marked tensile stress gradients at 6 mm depth near the welding center, with residual stresses reaching up to 400 MPa in the longitudinal direction. At 14 mm depth, the stresses decreased to around 200 MPa for the longitudinal component and became compressive for the transverse and normal components. In-depth measurements inside the weld confirmed that the main integrity concern for the investigated sample may arise from the tensile longitudinal stresses.
NUCLEAR MATERIALS AND ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Junseong Ahn, Hanhwi Jang, Yongrok Jeong, Seongsu Choi, Jiwoo Ko, Soon Hyoung Hwang, Jun-Ho Jeong, Yeon Sik Jung, Inkyu Park
Summary: This review comprehensively analyzes the development and application of nanotransfer printing (nTP) technology in response to the increasing demand for diverse nanostructures in physical/chemical devices. The review discusses the improvements made by researchers over the past decade in nTP technology and the methods and challenges for achieving high-yield and versatile printing through the control of adhesion force. Additionally, the review provides insights into potential applications of nanostructured devices and prospects for future developments and innovations.
Article
Nuclear Science & Technology
J. Herb, Y. Perin, S. Yum, A. Mylonakis, C. Demaziere, P. Vinai, M. Yu, J. Wingate, M. Hursin
Summary: The CORTEX project made significant progress in simulating neutron flux oscillations and developing machine-learning tools to determine the causes of measured neutron flux oscillations. Sensitivity analyses were conducted to assess the robustness and trustworthiness of the selected methods and tools. A three dimensional fully convolutional neural network was trained to determine the cause and location of perturbations in in-core detectors in pressurized water reactors.
ANNALS OF NUCLEAR ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Ruhan E. Ustad, Somnath S. Kundale, Kasturi A. Rokade, Snehal L. Patil, Vijay D. Chavan, Kalyani D. Kadam, Harshada S. Patil, Sarita P. Patil, Rajanish K. Kamat, Deok-kee Kim, Tukaram D. Dongale
Summary: Since the discovery of graphene, a lot of attention has been focused on two-dimensional (2D) materials due to their appealing properties for various technological applications. MXene, a newly emerged 2D material etched from parent MAX phases, has been extensively studied for more than 30 structures in both theoretical and experimental aspects. In this review, we cover the multidisciplinary aspects of MXene, including its structures, synthesis methods, and various properties. Furthermore, we explore the impact of MXene-based materials on applications such as supercapacitors, gas sensors, strain sensors, biosensors, electromagnetic interference shielding, microwave absorption, memristors, and artificial synaptic devices. This review provides a comprehensive overview of the current status and potential future developments of MXene nanomaterials in different applications.
Article
Astronomy & Astrophysics
Yosuke Ashida, Kenichiro Nakazato
Summary: This study investigates the fate of massive stars' core collapse by studying the fluxes and event rate spectra of supernova relic neutrinos (SRNs). The results show that different nuclear equations of state lead to the formation of different states of neutron stars or black holes. The study also demonstrates the expected sensitivity of next-generation water-based Cherenkov detectors in constraining the mixture fractions.
ASTROPHYSICAL JOURNAL
(2022)
Review
Biochemistry & Molecular Biology
Nader Kameli, Anya Dragojlovic-Kerkache, Paul Savelkoul, Frank R. Stassen
Summary: Research on plant-derived extracellular vesicles (PDEVs) has grown exponentially in recent years, showing promising potential for therapeutics and nano-delivery. However, challenges such as standardization protocols and knowledge gaps still need to be addressed in this field.
Article
Materials Science, Multidisciplinary
Yizhou Yang, Meikang Han, Christopher E. Shuck, Raj K. Sah, Jay R. Paudel, Alexander X. Gray, Yury Gogotsi, Steven J. May
Summary: High electrical conductivity is desired in MXene films for various applications. A systematic study was conducted to understand the contributions of composition and size to resistivity. The results showed that the Ti content correlated with conductivity and carrier mobility, while flake size and d-spacing had a more prominent impact on low-temperature transport.
Article
Materials Science, Multidisciplinary
Grace Cooksley, Marcus K. Dymond, Nicolas A. Stewart, Giselda Bucca, Andrew Hesketh, Joseph Lacey, Yury Gogotsi, Susan Sandeman
Summary: This study investigates the impact of two-dimensional titanium carbide MXene on pathways related to inflammation and epithelial-mesenchymal transition (EMT) using an in vitro LECs model. The results demonstrate that Ti3C2T(x) can decrease the expression of inflammatory cytokines and does not promote EMT, promoting a positive wound healing response.
Article
Chemistry, Physical
Katarina Adstedt, Madeline L. Buxton, Luke C. Henderson, David J. Hayne, Dhriti Nepal, Yury Gogotsi, Vladimir V. Tsukruk
Summary: Carbon fibers are important components in advanced structural composites due to their high strength to weight ratio and thermal and chemical stability. Surface interactions of graphene oxide (GO) and Ti3C2Tx MXene nanoflakes on carbon fibers were studied in this research. The study revealed that these 2D materials not only enhance interface strength but also facilitate efficient charge transfer and increased conductivity, broadening the potential applications of composites.
Article
Chemistry, Physical
Meikang Han, Yury Gogotsi
Summary: The rapid development of communication and electronic technologies has generated new demands for electromagnetic radiation protection. MXenes, a type of two-dimensional transition metal carbides and nitrides, have quickly reshaped the field since their introduction in 2016. This article provides a perspective on the recent progress and challenges of MXenes in electromagnetic jamming protection, specifically electromagnetic interference shielding and microwave absorption. It discusses the intrinsic properties and design strategies of MXenes for optimizing their performance in electromagnetic protection, aiming to clarify misconceptions and objectively assess reported materials. Finally, it examines the future opportunities and challenges in the development of MXenes for electromagnetic radiation protection.
Article
Materials Science, Multidisciplinary
Naresh C. Osti, Xiaobo Lin, Wei Zhao, Xuehang Wang, Chaofan Chen, Yu Gao, Takeshi Torita, Alexander Kolesnikov, Peter T. Cummings, Yury Gogotsi, Eugene Mamontov
Summary: In this study, the impact of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [EmimTFSI], ionic liquid and acetonitrile (ACN) concentrations on the electrochemical performance and ion dynamics of Ti3C2T (x) MXene supercapacitor was investigated. The results indicate that an optimal ACN concentration allows for more cations to attach to the MXene electrode surface, resulting in improved electrochemical performance. This increased capacitance is also associated with enhanced microscopic dynamics of the cation away from the pore wall. These findings provide guidance for optimizing the performance of MXene-based supercapacitors using organic solvents-ionic liquid-based electrolyte systems.
Editorial Material
Multidisciplinary Sciences
Yury Gogotsi
NATIONAL SCIENCE REVIEW
(2023)
Article
Chemistry, Multidisciplinary
Spencer R. R. Averbeck, Doris Xu, Brendan B. B. Murphy, Kateryna Shevchuk, Sneha Shankar, Mark Anayee, Marcelo Der Torossian Torres, Michael S. S. Beauchamp, Cesar de la Fuente-Nunez, Yury Gogotsi, Flavia Vitale
Summary: This study comprehensively investigates the stability of MXenes under various sterilization protocols and finds that autoclave and ethylene oxide sterilization do not alter the properties of MXenes, while hydrogen peroxide gas plasma sterilization severely degrades MXenes.
Article
Chemistry, Physical
Mailis Lounasvuori, Tyler S. Mathis, Yury Gogotsi, Tristan Petit
Summary: Highly concentrated water-in-salt aqueous electrolytes have potential to replace flammable and toxic organic solvents in energy storage devices. By using operando infrared spectroscopy, this study investigates the hydrogen bonding changes of water confined between MXene layers during electrochemical cycling in a water-in-salt electrolyte. The results provide new insights into the structural changes of the electrolyte during Li+ intercalation in the MXene interlayer space.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Multidisciplinary Sciences
Mailis Lounasvuori, Yangyunli Sun, Tyler S. Mathis, Ljiljana Puskar, Ulrich Schade, De-En Jiang, Yury Gogotsi, Tristan Petit
Summary: This study investigates the hydration structure of protons intercalated in Ti3C2Tx MXene layers and finds that it differs from protons in bulk water. This finding has important implications for characterizing chemical species in energy storage and conversion applications.
NATURE COMMUNICATIONS
(2023)
Article
Electrochemistry
Geetha Valurouthu, Rachita Panigrahi, Mohit Saraf, Christopher E. Shuck, Bhabani S. Mallik, Narendra Kurra, Yury Gogotsi
Summary: This study reports the ambipolar electrochemical behavior of 2D Ti3C2Tx MXene in ionic liquid electrolyte. Redox peaks with small potential separation are observed at high negative and high positive potentials. Experimental data and DFT calculations suggest the feasibility of pseudo-intercalation of TFSI anions between Ti3C2Tx flakes. This study provides a pathway for exploring anion intercalation in solvent-free electrolytes, leading to improved performance of MXene-based energy storage devices.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Physical
Kateryna Shevchuk, Asia Sarycheva, Christopher E. Shuck, Yury Gogotsi
Summary: This study is the first systematic experimental Raman spectroscopy investigation of the MXene family. By exploring the vibrational spectra of MXenes with different structures and compositions, it provides the potential for fingerprinting and in situ studies of MXenes.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Teng Zhang, Christopher E. Shuck, Kateryna Shevchuk, Mark Anayee, Yury Gogotsi
Summary: Layered MAX phases and MXenes derived from them have been synthesized to expand the variety of known materials. The synthesis of three families of titanium carbonitride Tin+1Al(C1-y N-y ) n MAX phases and Tin+1(C1-y Ny )(n)T-x MXenes with different 2D layer thicknesses greatly expands the range of materials. The relationship among the composition, structure, stability, and synthesis conditions of the MXenes and their respective Al-based MAX phases has been investigated. These materials will enable fundamental studies of their properties and applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Marcelo A. Andrade, Timofey Averianov, Christopher E. Shuck, Kateryna Shevchuk, Yury Gogotsi, Ekaterina Pomerantseva
Summary: In this study, we demonstrate the synthesis of solid-solution MXenes through chemical etching to form oxides, which include vanadium oxide and niobium oxide. The results show that the formation of solid solutions facilitates the etching kinetics and accelerates the formation of MXenes. Moreover, the oxide derived from solid-solution MXenes exhibits composite-like behavior and shows good electrochemical cycling performance.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Meikang Han, Danzhen Zhang, Akash Singh, Tetiana Hryhorchuk, Christopher Eugene Shuck, Teng Zhang, Lingyi Bi, Bernard McBride, Vivek B. Shenoy, Yury Gogotsi
Summary: We have found that the MXene family of two-dimensional carbides and carbonitrides can produce selective and ultrathin films and coatings with different infrared emissivity values and colors. By combining different metals in solid-solution MXenes, the infrared emissivity can be finely tuned. Furthermore, the infrared identification capability has been validated using different MXene coatings and patterned MXene fabrics. MXenes' versatility at optical and infrared wavelengths provides a platform for developing MXene-based smart, flexible devices and wearables capable of selective and localized thermal management.
Article
Materials Science, Multidisciplinary
Akari Seko, Shun Sakaida, Masashi Koyanagi, Yasuaki Okada, Takeshi Torita, Mark Anayee, Mikhail Shekhirev, Yury Gogotsi
Summary: MXenes are two-dimensional nanomaterials with various properties and potential applications in electronics, photonics, energy storage, etc. Their hydrophilicity allows them to absorb water from the environment, resulting in swelling and degradation of the assembled films. In this study, we demonstrate that intercalation of N-methylformamide (NMF) improves the stability of MXene films at high temperatures and humidity through host-guest hydrogen bonding. NMF interacts strongly with the MXene surface and occupies the interlayer spacing, reducing water intercalation and maintaining high electrical conductivity in hot and humid conditions.
MRS COMMUNICATIONS
(2023)
Article
Nuclear Science & Technology
Orestes Castillo-Hernandez, P. E. Manuel Perdomo-Ojeda, C. R. Grantom, Pamela F. Nelson
Summary: Incorporating specified safety and production targets during the design phase can reduce costs and enhance the competitiveness of nuclear power plants. This paper presents two methods for proposing unavailability targets for nuclear reactor systems to optimize the design features. The methods are applied to a hypothetical facility, providing a basis for future work on estimating design alternatives affecting unavailabilities.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Qinjun Fu, Andre Bergeron, Philippe Fillion, Yohan Davit, Michel Quintard
Summary: In normal operating conditions, the flow within a pressurized water reactor (PWR) core primarily moves in the axial direction along the fuel rods. However, in accidents situations, transverse flows can have a significant impact on the thermal-hydraulic properties of the core. This study develops macroscopic pressure drop models for different flow directions and Reynolds numbers and validates them by comparing with existing system code results.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Xiang Chai, Xinyue Liu, Chaoran Guan, Tengfei Zhang, Xiaojing Liu
Summary: Micro nuclear reactors have gained attention for their high efficiency and long lifetime, making them suitable for remote and off-grid locations. This study examines the effects of burnable poisons on the performance of a micro nuclear reactor and improves the design for reactivity control. The computational results show that burnable poisons reduce excess reactivity and power peaking factor without significant impact on core lifetime.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Liwei Chen, Cong Zhou, Yu Wang, Yiran Zong, Tingting Lu, Chunhua Chen
Summary: This paper proposes an autonomous search method for leakage sources in nuclear emergency rescue based on the updated Infotaxis method. By considering factors such as radioactive decay and wet deposition, the method improves search efficiency and accuracy. Experimental results show that the method is particularly effective in searching for leakage sources under high emission rates and provides scientific information for early emergency response and consequence assessment.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Kirill S. Dolganov
Summary: This paper is the first part of a summary overview of IBRAE's work on the severe accident at Unit 1 of Fukushima Daiichi Nuclear Power Station. It focuses on the integral model of Unit 1 and its qualification with available data, including the comparison of simulation results with measurements for the initial phase of the accident. Important issues discussed include the direct modeling of isolation condenser performance and verification of the possibility to use an integral approach to estimate the nuclide inventory in the core.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
F. Feria, C. Aguado, J. Benavides, J. Benavides, R. Canencia-Hernanz, M. Cristobal-Beneyto, J. Fernandez Garcia, H. Galan, C. Gonzalez, A. Hernandez-Avellaneda, L. E. Herranz, G. Jimenez, L. Martinez, J. C. Martinez-Murillo, A. Milena-Perez, A. Palacio Alonso, J. Penalva, R. Plaza, D. Perez-Gallego, L. Rey, N. Rodriguez-Villagra, J. Ruiz-Hervias, J. Saiz de Omenaca Tijero, P. Vinas-Pena
Summary: The Spanish R&D efforts in dry interim storage of spent nuclear fuel mainly focus on supporting safety under storage and transportation. Experimental and modelling activities are carried out to understand and predict the fuel response, with major outcomes being improvements in the characterization of dry stored fuel, essential for safety assessment of the back-end fuel cycle.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Ang Li, Yuqing Chen, Yuxian Rao, Qi Cai, Cong Wang
Summary: This paper focuses on the boiling heat transfer model of mini-channels casing-pipes once-through steam generator (MCOTSG). By calibrating and analyzing the different nucleate boiling heat transfer models based on steady state experimental results, the secondary loop heat transfer characteristics and overall operating characteristics of OTSG under feedwater flow rate reduction are simulated. The results can provide a basis for the safety analysis and optimal design of MCOTSG and small modular reactor under low flow rate conditions.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Shu Soma, Masahiro Ishigaki, Satoshi Abe, Yasuteru Sibamoto
Summary: In this paper, the analytical wall function approach was applied to analyze the condensation flow of steam/air mixtures, and good predictions were obtained through CFD analysis.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Jinho Song, Sungjoong Kim
Summary: In this study, a machine learning platform is proposed to assist operators in diagnosing the progression of severe accidents and predicting key parameters using long short term memory networks and MELCOR simulation data. The platform shows reasonable accuracy in predicting both similar and unseen test data, as well as lost signals and key parameters for accident management.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Liang Zhao, Zhengbai Chang, Chulin Mai, Hong Ran, Jin Jiang
Summary: This study investigates the dynamic characteristics, valve disc motion, and flow field of a nozzle check valve under different spring stiffness and fluid deceleration rates. Experimental tests and numerical simulations were performed to analyze the effects on various parameters during the dynamic closing process of the valve. The results provide insights for the optimization design of check valves and more accurate calculation of their dynamic characteristic curves.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Xun Lan, Yanbo Jiang, Dan Sun, Wenbo Liu, Wenjie Li
Summary: In this study, a three-dimensional phase-field model was developed to investigate the evolution of intergranular bubbles during irradiation. The study examined the dependency of bubble percolation on bubble shape, fission rate, and average grain size. The simulation results revealed the significant effects of these factors on the shape of GB bubbles, the percolation rate, and the connectivity threshold of GB bubbles.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
J. M. S. Mendes, A. Heimlich, A. M. M. De Lima, F. C. Silva
Summary: An algorithm for solving the constitutive equations of the fourth-order Nodal Expansion Method (NEM) in parallel using GPU with quadratic transverse leakage has been proposed. The algorithm, implemented in CUDA language, showed comparable accuracy and reduced execution time compared to the CNFR code. This algorithm and the developed program have potential use in the optimization process of nuclear fuel reload patterns.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
M. Jafari, H. Jafari, M. H. Choopan Dastjerdi, J. Mokhtari
Summary: This study investigates the ability of the PGNAA facility of the Isfahan MNSR reactor to measure boron concentration in solution samples. A measurement system model is developed using Monte Carlo calculation, and a cadmium sheet is used to reduce the effect of boron in the shield. The accuracy of the model is verified through experimental tests, resulting in a calibration curve.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Ibrahim Gad-el-Hak, Njuki Mureithi, Kostas Karazis, Brian Painter
Summary: This study investigates the risk of fluidelastic instability induced by degraded baffle-former bolts in a nuclear fuel assembly. Experimental results show that the stability threshold of the mock-up array strongly depends on the relative position of the jet flow with respect to the array centerline, and axial flow velocity also has a significant effect on the jet-induced instability.
NUCLEAR ENGINEERING AND DESIGN
(2024)
Article
Nuclear Science & Technology
Yuhang Niu, Scolaro Alessandro, Carlo Fiorina, Hao Qin, Gauthier Lazare, Yingwei Wu, Wenxi Tian, G. H. Su
Summary: This paper presents the incorporation of DNB prediction into the GeN-Foam code, which is based on OpenFOAM. The accuracy of GeN-Foam in modeling DNB conditions in PWR was assessed through validation against experimental data and other codes. The results show that GeN-Foam exhibits good performance in simulating two-phase flow boiling conditions and accurately predicts the occurrence of DNB.
NUCLEAR ENGINEERING AND DESIGN
(2024)