Journal of Nuclear Engineering and Radiation Science: Recent submissions
Now showing items 101-120 of 891
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Experimental Investigation of Melt Coolability Behavior in an ExVessel Core Catcher: The Effect of Flooding Time
(The American Society of Mechanical Engineers (ASME), 2022)Some of the advanced nuclear reactors employ an exvessel core catcher to mitigate core melt scenarios by stabilizing and cooling the corium for a prolonged period by strategically flooding it. The side indirect cooling ... -
ARKADIA—For the Innovation of Advanced Nuclear Reactor Design
(The American Society of Mechanical Engineers (ASME), 2022)This paper describes the outline and development plan for “Advanced Reactor Knowledge- and Artificial Intelligence (AI)-aided design integration approach through the whole plant lifecycle (ARKADIA),” which the Japan Atomic ... -
On Cyclotron-Based Production of Gallium-68 Isotope: A Computational Benchmark for the Production Yield & Shielding Considerations
(The American Society of Mechanical Engineers (ASME), 2022)Gallium-68 (68Ga) has played a relevant role for the novel studies in the nuclear medicine area. Its production has been made traditionally and initially using 68Ge/68Ga generators. These devices represent some flaws, ... -
Novel Eddy Current Array Sensor Delivery Tool for Automated Nondestructive Examination of Spent Fuel Pool Liner
(The American Society of Mechanical Engineers (ASME), 2022)Inspection of a spent fuel pool (SFP) liner of a nuclear power plant is important to validate the integrity of this component to perform its intended function (e.g., confirm that there are not any defects in the pool liner). ... -
Experimental Study on Local Damage to Reinforced Concrete Panels Subjected to Oblique Impact by Projectiles
(The American Society of Mechanical Engineers (ASME), 2022)Most empirical formulas used to evaluate local damage to reinforced concrete (RC) structures have been based on impact tests conducted with a rigid projectile at an impact angle normal to the target structure. Only a few ... -
Design Study of Small Modular Reactor Class Super Fast Reactor Core for In-Vessel Retention
(The American Society of Mechanical Engineers (ASME), 2022)The small modular reactor (SMR) class core design concept of once-through supercritical light water-cooled reactor (SCWR) with fast neutron spectrum (super fast reactor (FR)) is being developed at Waseda University. For ... -
Void Fraction Measurement and Prediction of Two-Phase Boiling Flows in a Tubular Test Section
(The American Society of Mechanical Engineers (ASME), 2022)Void fraction is one of the most important parameters that affect two-phase flow heat transfer and pressure drop. In this paper, a commercial gamma densitometer and a high-speed X-ray radiography system developed at the ... -
Characterization of the Finite Element Computational Fluid Dynamics Capabilities in the Multiphysics Object Oriented Simulation Environment
(The American Society of Mechanical Engineers (ASME), 2022)The multiphysics object-oriented simulation environment (moose) is a code package that couples a variety of physics modules, allowing for highly accessible multiphysics simulations. The physics modules include a finite ... -
The Effect of Flow Channel Geometry on Thermomechanical Performance of Printed Circuit Heat Exchanger (PCHE)
(The American Society of Mechanical Engineers (ASME), 2022)The carbon-free energy systems such as nuclear can benefit from compact and highly efficient heat exchanger technologies. The plate-type compact heat exchangers such as the printed circuit heat exchanger (PCHE) holds promise ... -
Water Hammers Exploded the Nuclear Power Plants at Fukushima Daiichi
(The American Society of Mechanical Engineers (ASME), 2022)A fundamental contemporary theory, the Leishear explosion theory, explains major explosions at Three Mile Island and Fukushima Daiichi. Focusing on the Fukushima Daiichi explosions as well as many small nuclear power plant ... -
Necessity of Coordinating Nondestructive Examination Requirement for Nuclear Power Plant
(The American Society of Mechanical Engineers (ASME), 2022)This article covers the design management of nondestructive examination (NDE) requirements for nuclear power plants. In recent years, there are many problems related to NDE requirements during the construction of nuclear ... -
Characterization of the Degradation of HEPA Filters Protected by Different Spark Arrestors for Various Cutting Means and Cutting Conditions
(The American Society of Mechanical Engineers (ASME), 2022)The ageing of the nuclear installations induces new challenges regarding the containment of radioactive matter especially airborne contamination. The purification of the air using fibrous filters is the most widely used ... -
Radon and Exhalation Rate Measurement of Soil Samples in Al-Amiriya Area in Baghdad Governorate Using a Nuclear Track Detector
(The American Society of Mechanical Engineers (ASME), 2022)Radon is the most dangerous natural radioactive component affecting the human population, since it is a radioactive gas that results from the decomposition process of uranium deposits in soil, rocks, and water, and it is ... -
Methodology and Instrumentation for Electron Paramagnetic Resonance Dosimetry With Tooth Enamel
(The American Society of Mechanical Engineers (ASME), 2022)When tooth enamel is exposed to ionizing radiation, it generates a dose-dependent concentration of free radical centers (i.e., unpaired electrons). The concentration of these free radical centers is identified and quantified ... -
Applicability of the Dose Spiking Electron Paramagnetic Resonance Method for the Quantitative Measurements of Low Doses in Alanine Dosimetry
(The American Society of Mechanical Engineers (ASME), 2022)Ionizing radiation generates unpaired electrons or free radical centers in alanine. The electron paramagnetic resonance (EPR) detects, identifies, and quantifies these free radicals, proportional to the absorbed dose. The ... -
Preliminary Analysis of Reactivity Feedbacks for Inner-Side Chromium Coating
(The American Society of Mechanical Engineers (ASME), 2022)Protective coatings were proposed as near-term concepts to enhance the accident tolerance of nuclear fuel claddings; it is expected to improve corrosion resistance in severe events, and enhance cladding performance during ... -
Calculation of Gamma and Neutron Shielding Parameters for Reinforced Polymer Composites
(The American Society of Mechanical Engineers (ASME), 2022)In this study, the shielding parameters for isophorone diamine (IPDA) with different ratios of barite (BaSO4), boron carbide (B4C), and aluminum oxide (Al2O3) composites were theoretically investigated. The mass attenuation ... -
Transient Analysis of Passive Autocatalytic Hydrogen Recombiners Using Computational Fluid Dynamics
(The American Society of Mechanical Engineers (ASME), 2022)Passive autocatalytic recombiners (PARs) are being used in most modern nuclear power plants (NPPs) for mitigating the hydrogen risk both in normal and accidental scenarios. Development of a systematic model of PARs based ... -
Study of Radium Behavior in Contact With Calcium-Silicate-Hydrates
(The American Society of Mechanical Engineers (ASME), 2022)Radium-226 is an important radionuclide with respect to the long-term safety of repositories for low and intermediate-level radioactive wastes, as well as deep geological repositories for high-level radioactive waste and ... -
Technical Evaluation Method of Mechanical Equipment Item Substitution in the Procurement and Construction Process of Nuclear Power Plant
(The American Society of Mechanical Engineers (ASME), 2022)The needs of item substitution are frequent during the procurement and construction of nuclear power project. But the documents prepared for item substitution requests vary considerably in quality that influence working ...