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Cast Stone Formulation At Higher Sodium Concentrations

Description: A low temperature waste form known as Cast Stone is being considered to provide supplemental Low Activity Waste (LAW) immobilization capacity for the Hanford site. Formulation of Cast Stone at high sodium concentrations is of interest since a significant reduction in the necessary volume of Cast Stone and subsequent disposal costs could be achieved if an acceptable waste form can be produced with a high sodium molarity salt solution combined with a high water to premix (or dry blend) ratio. The… more
Date: February 28, 2014
Creator: Fox, K. M.; Roberts, K. A. & Edwards, T. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Center for Momentum Transport and Flow Organization in Plasmas and Magnetofluids (CMTFO)

Description: The CMTFO funding partially supports a junior researcher and a graduate student at UCI. During this project, we have further developed the global gyrokinetic particle code GTC to study the momentum transport in tokamak driven by electrostatic ion temperature gradient (ITG) turbulence [1] with kinetic electrons and by collisionless trapped electron mode (CTEM) turbulence [2]. We have also upgraded GTC for fully electromagnetic simulation and for linear plasma configuration with verification and … more
Date: February 28, 2014
Creator: Lin, Zhihong
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Multi-Hybrid Power Vehicles with Cost Effective and Durable Polymer Electrolyte

Description: Anima Bose, the principal investigator of the project, originally proposed to develop composite membranes to operate PEMFCs at much higher temperatures than 80{degrees}C and to alleviate the flooding problems often encountered in Nafion menmbrane containing fuel cells. The PI has successfully created composite membranes by blending small quantities of octasilane-poss (OSP) with Nafion. The composite membranes exhibited temperature tolerance up to 110{degrees}C without scarifying cell performanc… more
Date: February 28, 2014
Creator: Bose, Anima
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Shallow Water Offshore Wind Optimization for the Great Lakes (DE-FOA-0000415) Final Report: A Conceptual Design for Wind Energy in the Great Lakes

Description: The primary objective of the project was to develop a innovative Gravity Base Foundation (GBF) concepts, including fabrication yards, launching systems and installation equipment, for a 500MW utility scale project in the Great Lakes (Lake Erie). The goal was to lower the LCOE by 25%. The project was the first to investigate an offshore wind project in the Great Lakes and it has furthered the body of knowledge for foundations and installation methods within Lake Erie. The project collected histo… more
Date: February 28, 2014
Creator: Wissemann, Chris & White, Stanley M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis Of Tank 38H (HTF-38-14-6, 7) And Tank 43H (HTF-43-14-8, 9) Samples For Support Of The Enrichment Control And Corrosion Control Programs

Description: SRNL performed analysis on Tanks 38H and 43H surface and subsurface supernate samples to support ECP and CCP. The U-235 mass divided by the total U mass ranged from 0.0059 to 0.0060. Uranium concentration ranged from 53.1 mg/L in the Tank 43H surface sample to the 85.1 mg/L in the Tank 38H subsurface sample. The U-235/U and uranium concentration are in line with the prior 2H-Evaporator System ECP samples.
Date: February 27, 2014
Creator: Martino, C. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Crystallization In High Level Waste (HLW) Glass Melters: Operational Experience From The Savannah River Site

Description: processing strategy for the Hanford Tank Waste Treatment and Immobilization Plant (WTP). The basis of this alternative approach is an empirical model predicting the crystal accumulation in the WTP glass discharge riser and melter bottom as a function of glass composition, time, and temperature. When coupled with an associated operating limit (e.g., the maximum tolerable thickness of an accumulated layer of crystals), this model could then be integrated into the process control algorithms to for… more
Date: February 27, 2014
Creator: Fox, K. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sol-Gel Based Polybenzimidazole Membranes for Hydrogen Pumping Devices

Description: Electrochemical hydrogen pumping using a high temperature (>100°C) PBI membrane was demonstrated under non-humidified and humidified conditions at ambient pressures. Relatively low voltages were required to operate the pump over a wide range of hydrogen flow rates. The advantages of the high temperature capability were shown by operating the pump on reformate feed gas mixtures containing various amounts of CO and CO{sub 2}. Gas purity measurements on the cathode gas product were conducted and s… more
Date: February 26, 2014
Creator: Benicewicz, Brian
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Three-Dimensional Surface Geophysical Exploration of the 200-Series Tanks at the 241-C Tank Farm

Description: A surface geophysical exploration (SGE) survey using direct current electrical resistivity was conducted within the C Tank Farm in the vicinity of the 200-Series tanks at the Hanford Site near Richland, Washington. This survey was the second successful SGE survey to utilize the Geotection(TM)-180 Resistivity Monitoring System which facilitated a much larger survey size and faster data acquisition rate. The primary objective of the C Tank Farm SGE survey was to provide geophysical data and subsu… more
Date: February 26, 2014
Creator: Crook, N.; McNeill, M.; Dunham, Ralph & Glaser, Danney R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CRADA Final Report For CRADA NO. CR-12-006 [Operation and Testing of an SO{sub 2}-depolarized Electrolyzer (SDE) for the Purpose of Hydrogen and Sulfuric Acid Production]

Description: Over the past several years, Savannah River National Laboratory (SRNL) has led a team of collaborators under the Department of Energy’s (DOE) nuclear hydrogen production program to develop the Hybrid Sulfur (HyS) Process. HyS is a 2-step water-splitting process consisting of high temperature decomposition of sulfuric acid to generate SO{sub 2}, followed by the electrolysis of aqueous SO{sub 2} to generate hydrogen and sulfuric acid. The latter is fed back into the high temperature reactor. SRNL… more
Date: February 24, 2014
Creator: Summers, W. A.; Colon-Mercado, H. R.; Steimke, J. L. & Zahn, Steffen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computational Nanophotonics: Model Optical Interactions and Transport in Tailored Nanosystem Architectures

Description: The program is directed toward development of new computational approaches to photoprocesses in nanostructures whose geometry and composition are tailored to obtain desirable optical responses. The emphasis of this specific program is on the development of computational methods and prediction and computational theory of new phenomena of optical energy transfer and transformation on the extreme nanoscale (down to a few nanometers).
Date: February 21, 2014
Creator: Stockman, Mark & Gray, Steven
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy Saving Melting and Revert Reduction Technology (Energy-SMARRT): Surface/Near Surface Indication - Characterization of Surface Anomalies from Magnetic Particle and Liquid Penetrant Indications

Description: The systematic study and characterization of surface indications has never been conducted. Producers and users of castings do not have any data on which they can reliably communicate the nature of these indications or their effect on the performance of parts. Clearly, the ultimate intent of any work in this area is to eliminate indications that do in fact degrade properties. However, it may be impractical physically and/or financially to eliminate all surface imperfections. This project focused… more
Date: February 20, 2014
Creator: Griffin, John
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Organic Matter Composition, Recycling Susceptibility, and the Effectiveness of the Biological Pump – An Evaluation Using NMR Spectra of Marine Plankton

Description: Carbon (C) sequestration through fertilization of phytoplankton with micronutrients and enhancement of the absorption and retention of atmospheric C by ocean biota heavily depends on the efficiency of the “biological pump”. The long-term effectiveness of this strategy depends on a net transfer of C from the upper ocean-atmosphere system to the deep ocean where the C is removed from contact with the atmosphere for an extended period of time. This C removal can be equated to the amount of C fixat… more
Date: February 19, 2014
Creator: Paytan, Adina
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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