171 Matching Results

Search Results

Results: 1 - 24 next
open access

A New Concept for the Fabrication of Hydrogen Selective Silica Membranes

Description: It is attempted to synthesize hydrogen selective silica-based membranes through a novel thin film deposition concept. This report describes the progress made during the 1st Year of this award. All project Tasks, for Year 1, were completed and the first thin films were prepared and characterized. The goal of this work is to use crystalline layered silicates to form hydrogen selective membranes for use in high temperature hydrogen/carbon dioxide separations. It was proposed to: (A) Synthesize lay… more
Date: October 1, 2005
Creator: Tsapatsis, Michael
Partner: UNT Libraries Government Documents Department
open access

Procedure for Measuring and Reporting the Performance of Photovoltaic Systems in Buildings

Description: This procedure provides a standard method for measuring and characterizing the long-term energy performance of photovoltaic (PV) systems in buildings and the resulting implications to the building's energy use. The performance metrics determined here may be compared against benchmarks for evaluating system performance and verifying that performance targets have been achieved. Uses may include comparison of performance with the design intent; comparison with other PV systems in buildings; econom… more
Date: October 1, 2005
Creator: Pless, S.; Deru, M.; Torcellini, P. & Hayter, S.
Partner: UNT Libraries Government Documents Department
open access

Adapting Wireless Technology to Lighting Control and Environmental Sensing

Description: The high cost of retrofitting buildings with advanced lighting control systems is a barrier to adoption of this energy-saving technology. Wireless technology, however, offers a solution to mounting installation costs since it requires no additional wiring to implement. To demonstrate the feasibility of such a system, a prototype wirelessly-controlled advanced lighting system was designed and built. The system includes the following components: a wirelessly-controllable analog circuit module (AC… more
Date: October 1, 2005
Creator: Teasdale, Dana; Rubinstein, Francis; Watson, Dave & Purdy, Steve
Partner: UNT Libraries Government Documents Department
open access

Radionuclide Concentration in Soils and Vegetation at Low-Level Radioactive Waste Disposal Area G during 2005

Description: Soil samples were collected at 15 locations and unwashed overstory and understory vegetation samples were collected from up to nine locations within and around the perimeter of Area G, the primary disposal facility for low-level radioactive solid waste at Los Alamos National Laboratory (LANL). Soil and plant samples were also collected from the proposed expansion area west of Area G for the purpose of gaining preoperational baseline data. Soil and plant samples were analyzed for radionuclides t… more
Date: October 1, 2005
Creator: Fresquez, P.R.; McNaughton, M.W. & Winch, M.J.
Partner: UNT Libraries Government Documents Department
open access

Progress of the Phenix Experiment in the Year 2004.

Description: No Description Available.
Date: October 1, 2005
Creator: Hamagaki, H.; Ozawa, K.; Sakaguchi, T.; Inuzuka, M.; Kametani, S.; Kajihara, F. et al.
Partner: UNT Libraries Government Documents Department
open access

Realtime Monitoring of Pipelines for Third-Party Contact Semi-Annual Technical Progress Report: Number 4

Description: Third-party contact with pipelines (typically caused by contact with a digging or drilling device) can result in mechanical damage to the pipe, in addition to coating damage that can initiate corrosion. Because this type of damage often goes unreported and can lead to eventual catastrophic failure of the pipe, a reliable, cost-effective method is needed for monitoring and reporting third-party contact events. The impressed alternating cycle current (IACC) pipeline monitoring method consists of … more
Date: October 1, 2005
Creator: Burkhardt, Gary L. & Crouch, Alfred E.
Partner: UNT Libraries Government Documents Department
open access

History Matching in Parallel Computational Environments

Description: A novel methodology for delineating multiple reservoir domains for the purpose of history matching in a distributed computing environment has been proposed. A fully probabilistic approach to perturb permeability within the delineated zones is implemented. The combination of robust schemes for identifying reservoir zones and distributed computing significantly increase the accuracy and efficiency of the probabilistic approach. The information pertaining to the permeability variations in the rese… more
Date: October 1, 2005
Creator: Bryant, Steven; Srinivasan, Sanjay; Barrera, Alvaro & Yadav, Sharad
Partner: UNT Libraries Government Documents Department
open access

Performance Metrics Research Project - Final Report

Description: NREL began work for DOE on this project to standardize the measurement and characterization of building energy performance. NREL's primary research objectives were to determine which performance metrics have greatest value for determining energy performance and to develop standard definitions and methods of measuring and reporting that performance.
Date: October 1, 2005
Creator: Deru, M. & Torcellini, P.
Partner: UNT Libraries Government Documents Department
open access

Energy Performance Evaluation of a Low-Energy Academic Building: Preprint

Description: This paper considers the energy performance analyses conducted to document and verify progress toward the building's design objectives. The authors present and discuss energy performance data and draw lessons that can be applied to improve the design of this and future low-energy buildings.
Date: October 1, 2005
Creator: Pless, S. & Torcellini, P.
Partner: UNT Libraries Government Documents Department
open access

Exploitation and Optimization of Reservoir Performance in Hunton Formation, Oklahoma

Description: West Carney field--one of the newest fields discovered in Oklahoma--exhibits many unique production characteristics. These characteristics include: (1) decreasing water-oil ratio; (2) decreasing gas-oil ratio followed by an increase; (3) poor prediction capability of the reserves based on the log data; and (4) low geological connectivity but high hydrodynamic connectivity. The purpose of this investigation is to understand the principal mechanisms affecting the production, and propose methods b… more
Date: October 1, 2005
Creator: Kelkar, Mohan
Partner: UNT Libraries Government Documents Department
open access

FEM3A Model Development Quarterly Report: July-September 2005

Description: Work has continued to address numerical problems experienced with simulation of low-wind-speed, stable, atmospheric conditions with FEM3A. Steps 1 through 8 in the plan outlined in the first Quarterly report have been satisfied. Researchers at the University of Arkansas have all indications that the important problems related to stability of the simulations at regulatory conditions of low wind speed and stable atmospheric conditions have been resolved. This quarterly report for DE-FG26-04NT4203… more
Date: October 1, 2005
Creator: Salehi, Iraj A.; Havens, Jerry & Spicer, Tom
Partner: UNT Libraries Government Documents Department
open access

Delivery Reliability for Natural Gas--Inspection Technologies

Description: The Remote Field Eddy Current (RFEC) technique is ideal for inspecting unpiggable pipelines because all of its components can be made smaller than the diameter of the pipe to be inspected. For these reasons, RFEC was selected as a technology to be integrated with the Explorer II robotic platform for unpiggable pipeline inspections. The research work is a continuation of a prior DOE-NETL project but is now directed towards a seamless integration with the robot. The laboratory set-up has been imp… more
Date: October 1, 2005
Creator: Teitsma, Albert & Maupin, Julie
Partner: UNT Libraries Government Documents Department
open access

Fiber Optical Micro-detectors for Oxygen Sensing in Power Plants

Description: A reflection mode fiber optic oxygen sensor that can operate at high temperatures for power plant applications is being developed. The sensor is based on the {sup 3}O{sub 2} quenching of the red emission from hexanuclear molybdenum chloride clusters. Previously we immobilized the potassium salt of a molybdenum cluster, K{sub 2}M{sub 6}Cl{sub 14}, in a sol-gel matrix and showed that the luminescence is stable after 54 hours at 200 C, but the quenching ratios were low and the films delaminated af… more
Date: October 1, 2005
Creator: Baker, Gregory L.; Ghosh, Ruby N.; III, D.J. Osborn & Zhang, Po
Partner: UNT Libraries Government Documents Department
open access

Procedure for Measuring and Reporting Commercial Building Energy Performance

Description: This procedure is intended to provide a standard method for measuring and characterizing the energy performance of commercial buildings. The procedure determines the energy consumption, electrical energy demand, and on-site energy production in existing commercial buildings of all types. The performance metrics determined here may be compared against benchmarks to evaluate performance and verify that performance targets have been achieved.
Date: October 1, 2005
Creator: Barley, D.; Deru, M.; Pless, S. & Torcellini, P.
Partner: UNT Libraries Government Documents Department
open access

A NOVEL APPROACH TO MINERAL CARBONATION: ENHANCING CARBONATION WHILE AVOIDING MINERAL PRETREATMENT PROCESS COST

Description: Known fossil fuel reserves, especially coal, can support global energy demands for centuries to come, if the environmental problems associated with CO{sub 2} emissions can be overcome. Unlike other CO{sub 2} sequestration candidate technologies that propose long-term storage, mineral sequestration provides permanent disposal by forming geologically stable mineral carbonates. Carbonation of the widely occurring mineral olivine (e.g., forsterite, Mg{sub 2}SiO{sub 4}) is a large-scale sequestratio… more
Date: October 1, 2005
Creator: McKelvy, Michael J.; Chizmeshya, Andrew V.G.; Squires, Kyle; Carpenter, Ray W. & Bearat, Hamadallah
Partner: UNT Libraries Government Documents Department
open access

Report on Analysis of Forest Floor Bulk Density and Depth at the Savannah River Site.

Description: The forest floor data from the Savannah River Site consists of two layers, the litter layer and the duff layer. The purpose for the study was to determine bulk density conversion factors to convert litter and duff depth values in inches to forest floor fuel values in tons per acre. The primary objective was to collect litter and duff samples to adequately characterize forest floor depth and bulk density for combinations of 4 common forest types (loblolly/slash pine, longleaf pine, pine and hard… more
Date: October 1, 2005
Creator: Parresol, Bernard R.
Partner: UNT Libraries Government Documents Department
open access

Reducing Ultra-Clean Transportation Fuel Costs with HyMelt Hydrogen Quarterly Report: July-Sepember 2005

Description: This report describes activities for the twelfth quarter of work performed under this agreement. The design of the vessel for pressure testing has been finalized. We have initiated the purchasing process for the vessel and related equipment. Siemens Westinghouse Power Corporation completed computational fluid dynamics modeling and chemical reaction modeling of catalytic combustion of HyMelt product gases.
Date: October 1, 2005
Creator: Malone, Donald P. & Renner, William R.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Low-Energy Design Process and Energy Performance of the Zion National Park Visitor Center: Preprint

Description: Paper discusses NREL's role in the participation of the design process of the Zion National Park Visitor Center Complex and the results documented from monitoring the energy performance of the building for several years. Paper includes PV system and Trombe wall description and lessons learned in the design, construction, and commissioning of the building.
Date: October 1, 2005
Creator: Long, N.; Torcellini, P.; Pless, S. & Judkoff, R.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Roof Bolting Requirements Based on In-Mine Roof Bolter Drilling

Description: Roof bolting is the most popular method for underground openings in the mining industry, especially in the bedded deposits such as coal. In fact, all U.S. underground coal mine entries are roof-bolted as required by law. However, roof falls still occur frequently in the roof bolted entries. The two possible reasons are: the lack of knowledge of and technology to detect the roof geological conditions in advance of mining, and lack of roof bolting design criteria for modern roof bolting systems. … more
Date: October 1, 2005
Creator: Peng, Syd S.
Partner: UNT Libraries Government Documents Department
open access

Coupling the Alkaline-Surfactant-Polymer Technology and The Gelation Technology to Maximize Oil Production

Description: Gelation technologies have been developed to provide more efficient vertical sweep efficiencies for flooding naturally fractured oil reservoirs or more efficient areal sweep efficiency for those with high permeability contrast ''thief zones''. The field proven alkaline-surfactant-polymer technology economically recovers 15% to 25% OOIP more oil than waterflooding from swept pore space of an oil reservoir. However, alkaline-surfactant-polymer technology is not amenable to naturally fractured res… more
Date: October 1, 2005
Creator: Pitts, Malcolm; Qi, Jie; Wilson, Dan; Stewart, David & Jones, Bill
Partner: UNT Libraries Government Documents Department
Back to Top of Screen