Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 59 for “"CoRe Design"”.
-
Optimized core design of a supercritical carbon dioxide-cooled fast reactor
… the work presented here is for a 2400 MWt, core using S-CO2 as a coolant, which has comparable thermal efficiency (-45%) at much lower temperatures (650TC v. 8500C) A reactor core for use in this direct cycle S-CO2 GFR has been designed which satisfies established neutronic and …
-
Effects of fuel particle and reactor core design on modular HTGR source terms
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1987.
-
Development of optimized core design and analysis methods for high power density BWRs
… BWRs is the main goal of this work, focusing on designing cores with higher power density, to reduce the BWR capital cost. Generally, the core power density in BWRs is limited by the thermal Critical Power of its assemblies, below which heat removal can be accomplished with low fuel and cladding …
-
Core design and reactor physics of a breed and burn gas-cooled fast reactor
… current NERI funded research has focused on the design of a Gas-cooled Fast Reactor (GFR) operating in a Breed and Burnm (B&B) fuel cycle mode. B&B refers to a once-through fuel cycle where low enriched uranium (less than 5 w/o 235U in U) subcritical assemblies are loaded into the core in …
-
Collaborative CoRe design for year 10 electricity and magnetism: Professional development for enhancing practising science teachers' PCK
… of collaborative content representation (CoRe) design as a professional learning and development (PLD) intervention for enhancing practising science teachers’ pedagogical content knowledge (PCK) for teaching Year 10 (14-15-year olds) Electricity and Magnetism in New Zealand. There were …
-
Development of a core design optimization tool and analysis in support of the planned LEU conversion of the MIT Research Reactor (MITR-II)
… management analysis with the new LEU fuel, a core design optimization tool has been developed. Using a coarse model, the tool can quickly consider the large range of refueling options available, and identify a solution which minimizes power peaking with the least fuel shuffling possible. The …
-
Application of genetic algorithm and deep reinforcement learning for in-core fuel management
The nuclear reactor core is composed of few hundred assemblies. The loading of these assemblies is done with the goal of reducing its overall cost while maintaining safety limits. Typically, the core designers choose a unique position and fuel enrichment for each assembly through use of expert …
-
Energy efficient core designs for upcoming process technologies
… has been a first order constraint in the design of micro processors for the last decade. As Moore's law sunsets, new technologies are being actively explored to extend the march in increasing the computational power and efficiency. It is essential for computer architects to understand the …
-
Innovation Patterns in the Design-Driven Industries. Opening Up the 'Made in Italy'
… the context, the classics, story of Italian design, and Made in Italy at the same time exploring design today: based on a field work in Milan, Lombardy. Case study method proved to be as most suitable for answering the explorative nature of this research. The approach was thus relying on …
-
Optimum First Failure Loads of Sandwich Plates/Shells and Vibrations of Incompressible Material Plates
… for a fixed areal mass density, one- or two-core doubly-curved sandwich shell's (plate's) geometries and materials and fiber angles of unidirectional fiber-reinforced face sheets for it to have the maximum first failure load under quasistatic (blast) loads. The analyses employ a third-order …
-
Economic Analysis of 3D-Printed Ceramic Cores for GasTurbine Investment Castings
… by investment casting with sacrificial ceramic cores. The hot injection and pressing techniques traditionally used to manufacture ceramic cores have long lead times and high up-front costs, motivating an interest to form cores via additive manufacturing. While industrial additive manufacturing …
-
Thermal hydraulics analysis of the MIT research reactor in support of a low enrichment uranium (LEU) core conversion
… from the existing high enrichment uranium (HEU) core to a low enrichment uranium (LEU) core using a high-density monolithic UMo fuel. The design of an optimum LEU core for the MIT reactor is evolving. The objectives of this study are to benchmark the in-house computer code for the MITR, and to …
-
Optimization of a seed and blanket thorium-uranium fuel cycle for pressurized water reactors
A heterogeneous LWR core design, which employs a thorium/uranium once through fuel cycle, is optimized for good economics, wide safety margins, minimal waste burden and high proliferation resistance. The focus is on the Whole Assembly Seed and Blanket (WASB) concept, in which the individual seed …
-
An Experimental Characterization of Tip Leakage Flows and Corresponding Effects on Multistage Compressor Performance
… efficiency, and stall margin. With modern engine designs trending toward decreased core sizes to increase propulsive efficiency (by increasing bypass ratio) or additional compression stages to increase thermal efficiency by increasing the overall pressure ratio, blade heights in the rear stages of …
-
An improved method for estimating the moderator temperature coefficient of pressurized water reactors using multivariate autoregression
… stochastic fluctuations in the reactor core-exit temperature with similar fluctuations in the in-core neutron flux. The frequency response function between these two stochastic signals has been shown to be proportional to the moderator temperature coefficient. Though this method has been …
-
System-level optimization of the DC-DC voltage regulator and core for sub/near-threshold voltage operation
… for SC-VRM is separated from the embedded core design and therefore leads to sub-optimal system energy efficiency. In this thesis, we propose to jointly optimize the switched capacitor voltage regulator module (SC-VRM) and the compute core to minimize system energy per instruction. A …
-
Development of a Novel Fuel Burnup Methodology and Algorithm in RAPID and its Benchmarking and Automation
… of irradiation and cooling time. Detailed, full-core 3D burnup calculations are critical for nuclear fuel management studies, including core design and spent fuel storage safety and safeguards analysis. For core design, specifically during refueling, full- core pin-wise, axially-dependent burnup …
-
Optimization of hydride fueled pressurized water reactor cores
… implementing an appropriate methodology for design and optimization of hydride and oxide fueled cores. Core design is accomplished for a range of geometries via steady-state and transient thermal hydraulic analyses, which yield the maximum power, and fuel performance and neutronics studies, …
-
Saturation Effects in 3p3L Power Transformers due to Geomagnetically Induced Currents
… (mmf) resulting in part-cycle saturation of the core and so, heat related ageing and failures. A generally accepted theory on the impact of GIC's on transmission networks is that three-phase three-limb (3p3L) power transformers are not affected by this phenomenon. The basis is that a three-limb …
-
Integrating lean principles in automotive product development : breaking down barriers in culture and process
… development; the early concept phase, the middle core design phase and the launch phase. Recently, there has been difficulty in translating the lean principles into the product development environment. In this study, unique product development definitions of the lean principles are required and …
Page 1 of 3