Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (3)
- Materials Science and Engineering (2)
- Mechanical Engineering (2)
- Architectural Engineering (1)
- Architecture (1)
-
- Automotive Engineering (1)
- Aviation (1)
- Biochemical and Biomolecular Engineering (1)
- Chemical Engineering (1)
- Chemistry (1)
- Civil and Environmental Engineering (1)
- Computer Sciences (1)
- Defense and Security Studies (1)
- Environmental Chemistry (1)
- Management and Operations (1)
- Manufacturing (1)
- Military Vehicles (1)
- Mining Engineering (1)
- Nuclear (1)
- Other Materials Science and Engineering (1)
- Physics (1)
- Public Affairs, Public Policy and Public Administration (1)
- Radiochemistry (1)
- Social and Behavioral Sciences (1)
- Institution
- Keyword
-
- 3D printing (1)
- Additive manufacturing (1)
- CBRN (1)
- CFD (1)
- Chitosan (1)
-
- Combat Operations (1)
- Corrosion (1)
- DGR (1)
- Detector response (1)
- Dimple (1)
- FEA thermal model (1)
- Froth flotation (1)
- Fused silica (1)
- Heat transfer enhancement (1)
- Hybrid nanofluid (1)
- IGBT power module (1)
- In situ (1)
- Ion irradiation (1)
- Lattice defects (1)
- Liquid cold plate (1)
- Luminescence (1)
- Machine learning (1)
- NWMO (1)
- Neutron spectrum (1)
- Nuclear Warfare (1)
- Nuclear Waste (1)
- Nuclear waste (1)
- Nuclear waste disposal (1)
- Nuclear waste management (1)
- PEC (1)
Articles 1 - 12 of 12
Full-Text Articles in Nuclear Engineering
Radioactive Waste, Andrii Ligun, Nazifa Afroz
Radioactive Waste, Andrii Ligun, Nazifa Afroz
Featured Student Work
The Technical Report addresses the critical issue of nuclear waste management, exploring its sources, challenges, and potential solutions. The report delves into the current state of nuclear waste disposal technologies, emphasizing the need for sustainable and secure practices. Important subjects include the classification of radioactive waste, the consequences of inappropriate disposal for the environment, and an assessment of current disposal techniques. The paper also addresses new disposal techniques and policy issues for the responsible and safe management of radioactive waste. The results highlight the significance of a comprehensive strategy for managing radioactive waste that strikes a balance between public involvement, …
Cement-Based Materials With Solid-Gel Phase Change Materials For Improving Energy Efficiency Of Building Envelope, Zhuo Liu, Jiang Du, Ryan Steere, Joshua P. Schlegel, Kamal Khayat, Weina Meng
Cement-Based Materials With Solid-Gel Phase Change Materials For Improving Energy Efficiency Of Building Envelope, Zhuo Liu, Jiang Du, Ryan Steere, Joshua P. Schlegel, Kamal Khayat, Weina Meng
Nuclear Engineering and Radiation Science Faculty Research & Creative Works
This paper evaluated the cement-based materials incorporated with novel solid-gel phase change materials (PCMs) for improving the energy efficiency of building envelopes. This novel PCM is form-stable, which will not leak as solid-liquid PCMs do and not need encapsulation, and it features high energy-storage capacity. Experimental results showed that the thermal properties of cement-based materials were improved as the increase of PCM content. A 30% replacement of sand by volume with PCM can increase the latent heat of the mixture from around 0 to 7 J/g and decrease the thermal conductivity of PCM mortar based on the generalized self-consistent (GSC) …
Corrosion Related To The Nuclear Waste Containers, Ali Ebrahimzadeh Pilehrood
Corrosion Related To The Nuclear Waste Containers, Ali Ebrahimzadeh Pilehrood
Corrosion Research
The disposal of nuclear waste is a demanding topic, and the existing methods, whether it is temporary storage in spent fuel pools or storage in geological repositories, both face the risk of corrosion-related problems. Any failure in these storage methods can potentially lead to the release of radioactive materials into the environment. To avert such catastrophic scenarios, people in the nuclear industry consistently monitor and maintain these storage facilities endlessly and attempt to improve the plans designed to store nuclear waste. Here, I will examine the nuclear waste management organization (NWMO) plan in Canada. Choosing an appropriate location for the …
Defect Generation Mechanisms In Silica Under Intense Electronic Excitation By Ion Beams Below 100 K: Interplay Between Radiative Emissions, M. L. Crespillo, Joseph T. Graham, W. J. Weber, F. Agulló-López
Defect Generation Mechanisms In Silica Under Intense Electronic Excitation By Ion Beams Below 100 K: Interplay Between Radiative Emissions, M. L. Crespillo, Joseph T. Graham, W. J. Weber, F. Agulló-López
Nuclear Engineering and Radiation Science Faculty Research & Creative Works
Ion-beam effects on bulk silica at low temperature have been studied with the aim of understanding the routes and mechanisms leading from the initial generation of free carriers and self-trapped excitons (STEs) to the production of two stable defect structures in irradiated silica, non-bridging oxygen hole centers (NBOHCs) and oxygen deficient centers (ODCs). Ion beam induced luminescence (ionoluminescence, IL) spectra were obtained using 3 MeV H, 3.5 MeV He, 19 MeV Si, and 19 MeV Cl ions and a range of cryogenic irradiation temperatures from 30 to 100 K. The kinetic behavior of three emission bands centered at 1.9 eV …
Numerical Study Of Turbulent Flow And Heat Transfer In A Novel Design Of Serpentine Channel Coupled With D-Shaped Jaggedness Using Hybrid Nanofluid, Raditun E. Ratul, Farid Ahmed, Syed B. Alam, Md Rezwanul Karim, Arafat A. Bhuiyan
Numerical Study Of Turbulent Flow And Heat Transfer In A Novel Design Of Serpentine Channel Coupled With D-Shaped Jaggedness Using Hybrid Nanofluid, Raditun E. Ratul, Farid Ahmed, Syed B. Alam, Md Rezwanul Karim, Arafat A. Bhuiyan
Nuclear Engineering and Radiation Science Faculty Research & Creative Works
This Study Aimed to Examine Numerically the Effects of a Dimpled Surface over a Mini-Channel Heat Exchanger on the Flow Characteristics and Heat Transfer Across a Serpentine Channel with a Uniform Rectangular Cross-Section. the Dimples Were Arranged in Parallel with a Spanwise (Y/d) Distance of 3.125 and Streamwise (X/d) Distance of 11.25 Along Just One Side of the Serpentine Channel's Surface. Turbulent Flow Regime with Reynolds Number Ranging from 5 X 103 to 20 X 103 in the Channel with the Surface Modification Was Studied using Water and Various Volume Concentrations (Φ = 0.1%, 0.33%, 0.75%, 1%) of Al2O3-Cu/water Hybrid …
Measuring Radiation Protection: Partners From Across The Nuclear Enterprise Evaluate The Radiation Protection Of Us Army Vehicles, Andrew W. Decker, Robert Prins
Measuring Radiation Protection: Partners From Across The Nuclear Enterprise Evaluate The Radiation Protection Of Us Army Vehicles, Andrew W. Decker, Robert Prins
Faculty Publications
Recent mounting nuclear threats and postures from adversary nation-states, such as Russia, China, North Korea, and Iran, represent a clear danger to the interests and security of the United States of America and its Allies. To meet these threats, the 2022 Nuclear Posture Review requires the Department of Defense (DoD) to design, develop, and manage a combat-credible U.S. military which, among other prioritizations, is survivable. A survivable force can generate combat power despite adversary attacks. As such, the US Army must prepare today to set the conditions for successful conventional warfare on the nuclear battlefields of tomorrow. Our Army cannot …
Fast-, Light-Cured Scintillating Plastic For 3d-Printing Applications, Brian G. Frandsen, Michael Febbraro, Thomas Ruland, Theodore W. Stephens, Paul A. Hausladen, Juan J. Manfredi, James E. Bevins
Fast-, Light-Cured Scintillating Plastic For 3d-Printing Applications, Brian G. Frandsen, Michael Febbraro, Thomas Ruland, Theodore W. Stephens, Paul A. Hausladen, Juan J. Manfredi, James E. Bevins
Faculty Publications
Additive manufacturing techniques enable a wide range of possibilities for novel radiation detectors spanning simple to highly complex geometries, multi-material composites, and metamaterials that are either impossible or cost prohibitive to produce using conventional methods. The present work identifies a set of promising formulations of photocurable scintillator resins capable of neutron-gamma pulse shape discrimination (PSD) to support the additive manufacturing of fast neutron detectors. The development of these resins utilizes a step-by-step, trial-and-error approach to identify different monomer and cross-linker combinations that meet the requirements for 3D printing followed by a 2-level factorial parameter study to optimize the radiation detection …
Studies On The Enrichment Feasibility Of Rare Earth-Bearing Minerals In Mine Tailings, Jose L. Corchado-Albelo, Lana Z. Alagha
Studies On The Enrichment Feasibility Of Rare Earth-Bearing Minerals In Mine Tailings, Jose L. Corchado-Albelo, Lana Z. Alagha
Mining Engineering Faculty Research & Creative Works
This Study Aimed to Investigate the Potential of Enrichment of Rare-Earth-Bearing Minerals in Historic Mine Tailing using the Froth Flotation Process. Characterization Studies Indicated that Tailings Contained 11,000 Ppm of Rare Earth Elements (REEs). the Major Mineral in the Tailings Was Apatite at ~84%, Which Was Associated with Iron Oxides (~16%). TESCAN's Integrated Mineral Analysis (TIMA) Showed that Monazite Was the Main REE Mineral, and 69% of Monazite Was Locked in Apatite Grains. Characterization Studies Suggested that the Separation of REEs-Bearing Apatite from Iron Oxides is Possible using Froth Flotation, Wherein Apatite Was Floated and Iron Oxides Were Depressed. Zeta …
Thermal Analysis Of Si-Igbt Based Power Electronic Modules In 50kw Traction Inverter Application, Mohammad Shahjalal, Tamanna Shams, Sadat Bin Hossain, Md Rishad Ahmed, Mominul Ahsan, Julfikar Haider, Rajib Goswami, Syed B. Alam, Atif Iqbal
Thermal Analysis Of Si-Igbt Based Power Electronic Modules In 50kw Traction Inverter Application, Mohammad Shahjalal, Tamanna Shams, Sadat Bin Hossain, Md Rishad Ahmed, Mominul Ahsan, Julfikar Haider, Rajib Goswami, Syed B. Alam, Atif Iqbal
Nuclear Engineering and Radiation Science Faculty Research & Creative Works
Estimation of Accurate IGBT Junction Temperature is Crucial for Reliability Assessment. the Well-Known RC Lumped Approach Can Help Predict Junction Temperature. However, This Method Suffers from Inaccuracy While Characterizing the Thermal Behavior of Several IGBT Modules Mounted to the Liquid-Cooled Heatsink. Specifically, the Thermal Challenge Originates from the Thermal Cross-Coupling and Module-To-Module Heat Spreading and the Converter Cooling Condition. This Article Demonstrates a Methodology to Study the Impact of Heat Spreading, Thermal Interface Material, and Massive Size Liquid Cold-Plate on the overall Thermal Behavior. a Case Study of 50 KW Traction Inverter is Chosen to Demonstrate the Benefit of Early …
Data Augmentation For Neutron Spectrum Unfolding With Neural Networks, James Mcgreivy, Juan J. Manfredi, Daniel Siefman
Data Augmentation For Neutron Spectrum Unfolding With Neural Networks, James Mcgreivy, Juan J. Manfredi, Daniel Siefman
Faculty Publications
Neural networks require a large quantity of training spectra and detector responses in order to learn to solve the inverse problem of neutron spectrum unfolding. In addition, due to the under-determined nature of unfolding, non-physical spectra which would not be encountered in usage should not be included in the training set. While physically realistic training spectra are commonly determined experimentally or generated through Monte Carlo simulation, this can become prohibitively expensive when considering the quantity of spectra needed to effectively train an unfolding network. In this paper, we present three algorithms for the generation of large quantities of realistic and …
Incorporation Of Poly(Tfema) In Perovskite Thin Films Using A Supercritical Fluid, Kasey Handy, Gary C. Tepper
Incorporation Of Poly(Tfema) In Perovskite Thin Films Using A Supercritical Fluid, Kasey Handy, Gary C. Tepper
Mechanical and Nuclear Engineering Publications
A new process is reported for the incorporation of a fluoropolymer into a solid perovskite film. Poly(trifluoroethyl methacrylate) [CH2C(CH3)(CO2CH2CF3)]n was delivered to methylammonium lead iodide (CH3NH3PbI3) perovskite films by crystallizing the film in supercritical carbon dioxide/ethanol containing the dissolved fluoropolymer. The surface was characterized before and after fluoropolymer exposure using scanning electron microscopy, Raman spectroscopy, and contact angle measurements. The results indicate that the fluoropolymer was incorporated into the perovskite film during the supercritical fluid crystallization process. The incorporation of a hydrophobic fluoropolymer …
3d Cfd Simulation Of A Bubble Column With Internals: Validation Of Interfacial Forces And Internal Effects For Local Gas Holdup Predictions, Hayder Al-Naseri, Joshua P. Schlegel, Muthanna H. Al-Dahhan
3d Cfd Simulation Of A Bubble Column With Internals: Validation Of Interfacial Forces And Internal Effects For Local Gas Holdup Predictions, Hayder Al-Naseri, Joshua P. Schlegel, Muthanna H. Al-Dahhan
Nuclear Engineering and Radiation Science Faculty Research & Creative Works
CFD Models (Turbulent Models and Interfacial Forces) Incorporated with the Population Balance Model (PBM) Have Been Validated, Azimuthally, with the Gamma-Ray-Computed Tomography (CT) Results to Address the Effect of the Presence of Internals with Different Arrangements and Diameters. the Superficial Gas Velocity Applied Was Varied from 0.05 to 0.45 M/s. the Results Exhibit the Capability to Predict the Hydrodynamics of the Bubble Column, Further Incorporating the Population Balance Model and Promoting the Prediction of Simulation in High Superficial Gas Velocity. the Effect of Internals Revealed that the Gas Holdup Was Significantly Enhanced in the Bubble Column's Wall Region, While the …