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Two dimensional point of use fuel cell : a final LDRD project report.

Description: The Proliferation Assessment (program area - Things Thin) within the Defense Systems and Assessment Investment Area desires high energy density and long-lived power sources with moderate currents (mA) that can be used as building blocks in platforms for the continuous monitoring of chemical, biological, and radiological agents. Fuel cells can be an optimum choice for a power source because of the high energy densities that are possible with liquid fuels. Additionally, power generation and fuel … more
Date: March 1, 2011
Creator: Zavadil, Kevin Robert; Hickner, Michael A. (Pennsylvania State University, University Park, PA) & Gross, Matthew L. (Pennsylvania State University, University Park, PA)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems program (FY11 Quarter 2: January through March 2011).

Description: This report describes the status of research being performed under CRADA No. SC10/01771.00 (Lead/Carbon Functionality in VRLA Batteries) between Sandia National Laboratories and East Penn Manufacturing, conducted for the U.S. Department of Energy's Energy Storage Systems Program. The Quarter 2 Milestone was completed on time. The milestone entails an ex situ analysis of the four carbons that have been added to the negative active material of valve-regulated lead-acid (VRLA) batteries for the pu… more
Date: May 1, 2011
Creator: Shane, R. (East Penn Manufacturing, Lyon Station, PA); Enos, David George & Hund, Thomas D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Durable, Low-cost, Improved Fuel Cell Membranes

Description: The development of low cost, durable membranes and membranes electrode assemblies (MEAs) that operate under reduced relative humidity (RH) conditions remain a critical challenge for the successful introduction of fuel cells into mass markets. It was the goal of the team lead by Arkema, Inc. to address these shortages. Thus, this project addresses the following technical barriers from the fuel cells section of the Hydrogen Fuel Cells and Infrastructure Technologies Program Multi-Year Research, D… more
Date: March 17, 2011
Creator: Roger, Chris; Mountz, David; He, Wensheng & Zhang, Tao
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hydrogen Separation Membranes Annual Report for FY 2010.

Description: The objective of this work is to develop dense ceramic membranes for separating hydrogen from other gaseous components in a nongalvanic mode, i.e., without using an external power supply or electrical circuitry. The goal of this project is to develop dense hydrogen transport membranes (HTMs) that nongalvanically (i.e., without electrodes or external power supply) separate hydrogen from gas mixtures at commercially significant fluxes under industrially relevant operating conditions. These membra… more
Date: March 14, 2011
Creator: Balachandran, U.; Dorris, S. E; Emerson, J. E.; Lee, T. H.; Lu, Y.; Park, C. Y. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Considerations for Contractile Electroactive Materials and Actuators

Description: Ras Labs produces contractile electroactive polymer (EAP) based materials and actuators that bend, swell, ripple, and contract (new development) with low electric input. In addition, Ras Labs produces EAP materials that quickly contract and expand, repeatedly, by reversing the polarity of the electric input, which can be cycled. This phenomenon was explored using molecular modeling, followed by experimentation. Applied voltage step functions were also investigated. High voltage steps followed b… more
Date: May 23, 2011
Creator: Lenore Rasmussen, David Schramm, Paul Rasmussen, Kevin Mullaly, Ras Labs, LLC, Intelligent Materials for Prosthetics & Automation, Lewis D. Meixler, Daniel Pearlman and Alice Kirk
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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PILOT-SCALE FIELD VALIDATION OF THE LONG ELECTRODE ELECTRICAL RESISTIVITY TOMOGRAPHY METHOD

Description: Field validation for the long electrode electrical resistivity tomography (LE-ERT) method was attempted in order to demonstrate the performance of the technique in imaging a simple buried target. The experiment was an approximately 1/17 scale mock-up of a region encompassing a buried nuclear waste tank on the Hanford site. The target of focus was constructed by manually forming a simulated plume within the vadose zone using a tank waste simulant. The LE-ERT results were compared to ERT using co… more
Date: July 14, 2011
Creator: Rucker, D. F.; Loke, M. H.; Crook, N. & Glaser, D. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of Cdznte Radiation Detectors

Description: Cadmium Zinc Telluride (CdZnTe or CZT) is a very attractive material for room-temperature semiconductor detectors because of its wide band-gap and high atomic number. Despite these advantages, CZT still presents some material limitations and poor hole mobility. In the past decade most of the developing CZT detectors focused on designing different electrode configurations, mainly to minimize the deleterious effect due to the poor hole mobility. A few different electrode geometries were designed … more
Date: October 23, 2011
Creator: Bolotnikov, A.; Camarda, G.; Hossain, A.; Kim, K. H.; Yang, G.; Gul, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SURFACE GEOPHYSICAL EXPLORATION DEVELOPING NONINVASIVE TOOLS TO MONITOR PAST LEAKS AROUND HANFORD TANK FARMS

Description: A characterization program has been developed at Hanford to image past leaks in and around the underground storage tank facilities. The program is based on electrical resistivity, a geophysical technique that maps the distribution of electrical properties of the subsurface. The method was shown to be immediately successful in open areas devoid of underground metallic infrastructure, due to the large contrast in material properties between the highly saline waste and the dry sandy host environme… more
Date: June 17, 2011
Creator: Rucker, Dale F.; Myers, David A.; Cubbage, Brain; Levitt, Marc T.; Noonan, Gillian E.; McNeill, Michael et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT

Description: This report documents the evolution of the surface geophysical exploration (SGE) program and highlights some of the most recent successes in imaging conductive targets related to past leaks within and around Hanford's tank farms. While it is noted that the SGE program consists of multiple geophysical techniques designed to (1) locate near surface infrastructure that may interfere with (2) subsurface plume mapping, the report will focus primarily on electrical resistivity acquisition and process… more
Date: October 4, 2011
Creator: Rucker, D. F. & Myers, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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