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.
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Showing 1 to 20 of 28 for “"EPRI"”.
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Testing the EPRI reactivity depletion decrement uncertainty methods
An EPRI study[1], published in 2011, used measured flux map data (taken over 44 operational cycles of the Catawba and McGuire nuclear power plants) to determine fuel assembly reactivity decrements versus burnup. The analytical techniques used to infer measured assembly reactivities required …
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Dinitroxides in Rapid Scan Electron Paramagnetic Resonance Imaging
… so-called microenvironments through EPR Imaging (EPRI). Research into advancement of EPRI falls into many categories. Not least among those are advances in instrumentation and methodology. Presented here are updates to a benchtop EPRI instrument operating at 1 GHz targeted at pre-clinical EPRI …
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On the evaluation of human error probabilities for post-initiating events
… models: the Electric Power Research Institute (EPRI) HRA Calculator (using the HRC/ORE and Cause Based Decision Tree methods), used widely in industry, and A Technique for Human Error Analysis (ATHEANA), developed by the US Nuclear Regulatory Commission. This demonstration includes a brief …
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The tabu ant colony optimizer and its application in an energy market
… with published circuit models from IEEE and EPRI. In the IEEE feeder model, the application was able to limit the sale of power through an overloaded transformer and compensate by bringing downstream power online to relieve it. In the EPRI feeder model, rapid voltage changes due to clouds …
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Analysis of in-core experiment activities for the MIT Research Reactor using the ORIGEN computer code
… Research Institute Electro-Chemical Potential (EPRI ECP) loop, and Annular Fuel Test Rig (AFTR). The method has also been used to perform activation analyses for ten individual elements (plus U-235 and U-238) that are commonly found in MITR in-core experiment (ICE) assemblies. The ORIGEN-S …
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Power system dynamic modeling and synchrophasor measurements
… 3459a9d6ce0a0e6cfe8fa31ab417fbc9 (MD5) RE_ EPRI CopyRight Release Request -- FW_ Copyright Release Request #296.pdf: 652170 bytes, checksum: e278110cc58878cd65df1950661184f6 (MD5) Previous issue date: 2017-01-17
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Reduced order power system models for transient stability studies
… model using Electric Power Research Institute's (EPRI) Extended Transient-Midterm Stability Package (ETMSP).
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Interrogations of The Tumor Microenvironment Using Magnetic Resonance Imaging
… where electron paramagnetic resonance imaging (EPRI) oximetry was employed to study the oxygenation states of tumor systems. Specifically, in chapter 2 of this dissertation, I present results from, to the best of our knowledge, the first study in which machine learning models were trained with …
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CRUD resistant fuel cladding materials
… The Electric Power Research Institute (EPRI) CRUD Resistant Fuel Cladding project has the objective to study the effect of different surface modifications of Zircaloy cladding on the formation of CRUD, and ultimately minimize its effects. This modification will alter the surface …
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Identification of good practices in the operation of nuclear power plants
… a demonstration of using ORSIM to investigate EPRI (Electric Power Research Institute) good practices. Both problem diagnosis and policy investigations were conducted in the pilot project. It was found that the performance matrix developed in this work was able to measure stability, …
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Geomagnetically induced currents and its presence in the Eskom transmission network
… between Eskom, the University of Cape Town and EPRI. Eskom has been aware since about 1990, that occasional severe geomagnetic storms in the Southern Cape might disrupt the MTS in that area. At that time no correlation was observed between disruptions at selected sites of the Eskom MTS and …
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Modeling of open bank distribution transformer connections
… an Electric Power Research Institute (EPRI) software package, is the environment in which the open bank connections are modeled. In particular, a load flow analysis application, called Power Flow, provides the framework for all transformer connection modeling. This framework …
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Protection system representation in the Electromagnetic Transients Program
… are developed, validated, and incorporated in EPRI/DCG EMTP Version 2.0. The user can define the values of the current transformer and capacitor voltage transformer parameters. Total Fortran capability has been added to EMTP; new subroutines and an inbuilt structure to allow the linking of user …
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Study of residential demand for electricity as functions of load control schemes and dwelling characteristics
… LOADSIM, an Electrical Power Research Institute (EPRI) load simulation program, to conduct load control strategies of these residential appliances. The LOADSIM program can be applied both for cycling and shedding control strategies during a specified control period. In this study, the cycling …
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Numerical instabilities in power system transient simulations
… which is integrated with the EMTP version of DCG/EPRI ("Development Coordination Group/Electric Power Research Institute"). It is shown through simple, but typical, case studies that the proposed method is not only accurate and efficient, but also numerically stable, thus representing a …
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Application of power electronics to the distribution transformer
… by the Electric Power Research Institute (EPRI), have been limited and comparatively crude demonstration projects. They did not provide isolation and have proven to be impractical when applied to utility distribution voltage levels. These efforts did, however, provide the level of interest …
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Mapping viability and oxygen concentration in spheroids: A noninvasive approach with EPR imaging
… on Electron Paramagnetic Resonance Imaging (EPRI), which would provide simultaneous measurements of the distribution of (O$\sb2$) and viability. The approach is based on (1) the homogeneous distribution throughout the spheroid of an aqueous nitroxide with a lineshape (linewidth) responsive to …
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Initiating Event Analysis of a Lithium Fluoride Thorium Reactor
… was made to previous PSAs and existing NRC and EPRI initiating event lists. Finally, fault tree and event tree analyses were conducted, completing the logical classification of initiating events. Results are qualitative as opposed to quantitative due to the early stages of system design …
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Integration of Energy Storage into a Future Energy System with a High Penetration of Distributed Photovoltaic Generation
… and the "smart" PV inverter proposed by EPRI are considered. </p> <p>The salient contributions of this dissertation follow. A unified methodology is developed for storage technology selection, storage capacity selection, and scheduling of an ESU used for energy arbitrage. The methodology …
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An efficient method for the solution of the energy dependent integral Boltzmann transport equation in the resolved resonance energy region
… running time for a production code such as EPRI-LEOPARD would be increased by only 6% through the use of the more accurate and intricate BGIM method in the lower resonance energy region. A comprehensive numerical verification of the proposed method is performed. Numerous comparisons are made …
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