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Energy Efficient Crawlspace Foundation Retrofit: Mixed Humid Climate
Residential quality management systems have most often been designed for new home construction. To address quality in existing homes in the form of Scopes of Work (SOW), the NAHB Research Center began with a new construction scope of work and applied it to an existing home project. This document is intended to outline the steps of translating a new home construction SOW to SOW for retrofit.
Date:
January 1, 2013
Creator:
Del Bianco, M.; Wiehagen, J. & Wood, A.
System:
The UNT Digital Library
Enhanced Accident Tolerant LWR Fuels National Metrics Workshop Report
The U.S. Department of Energy Office of Nuclear Energy (DOE-NE), in collaboration with the nuclear industry, has been conducting research and development (R&D) activities on advanced Light Water Reactor (LWR) fuels for the last few years. The emphasis for these activities was on improving the fuel performance in terms of increased burnup for waste minimization and increased power density for power upgrades, as well as collaborating with industry on fuel reliability. After the events at the Fukushima Nuclear Power Plant in Japan in March 2011, enhancing the accident tolerance of LWRs became a topic of serious discussion. In the Consolidated Appropriations Act, 2012, Conference Report 112-75, the U.S. Congress directed DOE-NE to: • Give “priority to developing enhanced fuels and cladding for light water reactors to improve safety in the event of accidents in the reactor or spent fuel pools.” • Give “special technical emphasis and funding priority…to activities aimed at the development and near-term qualification of meltdown-resistant, accident-tolerant nuclear fuels that would enhance the safety of present and future generations of light water reactors.” • Report “to the Committee, within 90 days of enactment of this act, on its plan for development of meltdown-resistant fuels leading to reactor testing …
Date:
January 1, 2013
Creator:
Braase, Lori
System:
The UNT Digital Library
Equipment Only - Solar Resources Measurements at the University of Texas at Austin, TX: Cooperative Research and Development Final Report, CRADA Number CRD-07-222
Faculty and staff at the University of Texas at Austin collected solar resource measurements at their campus using equipment on loan from the National Renewable Energy Laboratory. The equipment was used to train students on the operation and maintenance of solar radiometers and was returned to NREL's Solar Radiation Research Laboratory upon completion of the CRADA. The resulting data augment the solar resource climatology information required for solar resource characterizations in the U.S. The cooperative agreement was also consistent with NREL's goal of developing an educated workforce to advance renewable energy technologies.
Date:
January 1, 2013
Creator:
Stoffel, T.
System:
The UNT Digital Library
Estimating the Energy-Efficiency Potential in the Eastern Interconnection
None
Date:
January 1, 2013
Creator:
Brown, Dr. Marilyn Ann & Wang, Yu
System:
The UNT Digital Library
Evaluation 2013, Revised: Accomplishments and Outcomes of the Texas Workforce System
A report about the accomplishments and programs of the Texas Workforce Investment Council for 2013.
Date:
2013
Creator:
Texas Workforce Investment Council
System:
The Portal to Texas History
Evaluation of Ion Damage in Solar Cells: Cooperative Research and Development Final Report, CRADA Number CRD-07-00234
Equipment will be used by Greenville College to enhance a previously established collaboration in the area of radiation hardness of solar cells, using Greenville's unique Ion Accelerator. Equipment will be located at the E. College Avenue site.
Date:
January 1, 2013
Creator:
Young, D.
System:
The UNT Digital Library
Evaluation of Revised Computer-Based Procedure System Prototype
The nuclear power industry is very procedure driven, i.e. almost all activities that take place at a nuclear power plant are conducted by following procedures. The paper-based procedures (PBPs) currently used by the industry do a good job at keeping the industry safe. However, these procedures are most often paired with methods and tools put in place to anticipate, prevent, and catch errors related to hands-on work. These tools are commonly called human performance tools. The drawback with the current implementation of these tools is that the task of performing one procedure becomes time and labor intensive. For example, concurrent and independent verification of procedure steps are required at times, which essentially means that at least two people have to be actively involved in the task. Even though the current use of PBPs and human performance tools are keeping the industry safe, there is room for improvement. The industry could potentially increase their efficiency and safety by replacing their existing PBPs with CBPs. If implemented correctly, the CBP system could reduce the time and focus spent on using the human performance tools. Some of the tools can be completely incorporated in the CBP system in a manner that the performer …
Date:
January 1, 2013
Creator:
Blanc, Katya Le; Oxstrand, Johanna & Fikstad, Cheradan
System:
The UNT Digital Library
Evaluation of the Effective Moisture Penetration Depth Model for Estimating Moisture Buffering in Buildings
This study examines the effective moisture penetration depth (EMPD) model, and its suitability for building simulations. The EMPD model is a compromise between the simple, inaccurate effective capacitance approach and the complex, yet accurate, finite-difference approach. Two formulations of the EMPD model were examined, including the model used in the EnergyPlus building simulation software. An error in the EMPD model we uncovered was fixed with the release of EnergyPlus version 7.2, and the EMPD model in earlier versions of EnergyPlus should not be used.
Date:
January 1, 2013
Creator:
Woods, J.; Winkler, J. & Christensen, D.
System:
The UNT Digital Library
An examination of content similarity within the memory of HPC applications.
Memory content similarity has been e ectively exploited for more than a decade to reduce memory consumption. By consolidating duplicate and similar pages in the address space of an application, we can reduce the amount of memory it consumes without negatively a ecting the application's perception of the memory resources available to it. In addition to memory de-duplication, there may be many other ways that we can exploit memory content similarity to improve system characteristics. In this paper, we examine the memory content similarity of several HPC applications. By characterizing the memory contents of these applications, we hope to provide a basis for ef- forts to e ectively exploit memory content similarity to improve system performance beyond memory deduplication. We show that several applications exhibit signi cant similarity and consider the source of the similarity.
Date:
January 1, 2013
Creator:
Levy, Scott N.; Bridges, Patrick G.; Ferreira, Kurt Brian; Thompson, Aidan Patrick & Trott, Christian Robert
System:
The UNT Digital Library
Executive Summary - Natural Gas and the Transformation of the U.S. Energy Sector: Electricity
In November 2012, the Joint Institute for Strategic Energy Analysis (JISEA) released a new report, 'Natural Gas and the Transformation of the U.S. Energy Sector: Electricity.' The study provides a new methodological approach to estimate natural gas related greenhouse gas (GHG) emissions, tracks trends in regulatory and voluntary industry practices, and explores various electricity futures. The Executive Summary provides key findings, insights, data, and figures from this major study.
Date:
January 1, 2013
Creator:
Logan, J.; Heath, G.; Macknick, J.; Paranhos, E.; Boyd, W. & Carlson, K.
System:
The UNT Digital Library
Exomerge user's manual : a lightweight Python interface for manipulating Exodus files.
Exomerge is a lightweight Python module for reading, manipulating and writing data within ExodusII files. It is built upon a Python wrapper around the ExodusII API functions. This module, the Python wrapper, and the ExodusII libraries are available as part of the standard SIERRA installation.
Date:
January 1, 2013
Creator:
Kostka, Timothy D.
System:
The UNT Digital Library
Expert Meeting: Optimized Heating Systems Using Condensing Boilers and Baseboard Convectors
On August 11, 2011, in Denver, CO, a Building America Expert Meeting was held in conjunction with the Building America Residential Energy Efficiency Technical Update Meeting, to review and discuss results and future plans for research to improve the performance of hydronic heating systems using condensing boilers and baseboard convectors. A meeting objective was to provide an opportunity for other Building America teams and industry experts to provide feedback and specific suggestions for the planned research.
Date:
January 1, 2013
Creator:
Arena, L.
System:
The UNT Digital Library
External Insulation of Masonry Walls and Wood Framed Walls
The use of exterior insulation on a building is an accepted and effective means to increase the overall thermal resistance of the assembly that also has other advantages of improved water management and often increased air tightness of building assemblies. For thin layers of insulation (1" to 1 1/2"), the cladding can typically be attached directly through the insulation back to the structure. For thicker insulation layers, furring strips have been added as a cladding attachment location. This approach has been used in the past on numerous Building America test homes and communities (both new and retrofit applications), and has been proven to be an effective and durable means to provide cladding attachment. However, the lack of engineering data has been a problem for many designers, contractors, and code officials. This research project developed baseline engineering analysis to support the installation of thick layers of exterior insulation on existing masonry and frame walls. Furthermore, water management details necessary to integrate windows, doors, decks, balconies and roofs were created to provide guidance on the integration of exterior insulation strategies with other enclosure elements.
Date:
January 1, 2013
Creator:
Baker, P.
System:
The UNT Digital Library
Family Land Heritage Ceremony Commemorative Program: 2013
Commemorative program for a Family Land Heritage Ceremony to recognize families that run farms and ranches in Texas. It provides information about the event and also includes listings for all of the honorees, organized by length of operation.
Date:
2013
Creator:
Texas. Department of Agriculture.
System:
The Portal to Texas History
Feasibility Study of Anaerobic Digestion of Food Waste in St. Bernard, Louisiana. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites
The U.S. Environmental Protection Agency (EPA) developed the RE-Powering America's Land initiative to re-use contaminated sites for renewable energy generation when aligned with the community's vision for the site. The former Kaiser Aluminum Landfill in St. Bernard Parish, Louisiana, was selected for a feasibility study under the program. Preliminary work focused on selecting a biomass feedstock. Discussions with area experts, universities, and the project team identified food wastes as the feedstock and anaerobic digestion (AD) as the technology.
Date:
January 1, 2013
Creator:
Moriarty, K.
System:
The UNT Digital Library
Feasibility Study of Economics and Performance of Solar Photovoltaics at the Kerr McGee Site in Columbus, Mississippi.
The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Kerr McGee site in Columbus, Mississippi, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.
Date:
January 1, 2013
Creator:
Simon, J. & Mosey, G.
System:
The UNT Digital Library
Feasibility Study of Economics and Performance of Solar Photovoltaics at the Sky Park Landfill Site in Eau Claire, Wisconsin. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites
The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Sky Park Landfill site in Eau Claire, Wisconsin, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.
Date:
January 1, 2013
Creator:
Simon, J. & Mosey, G.
System:
The UNT Digital Library
Feasibility Study of Economics and Performance of Solar Photovoltaics at the Vincent Mullins Landfill in Tucson, Arizona.
The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Vincent Mullins Landfill in Tucson, Arizona, for a feasibility study of renewable energy production. Under the RE-Powering America's Land initiative, the EPA provided funding to the National Renewable Energy Laboratory (NREL) to support the study. NREL provided technical assistance for this project but did not assess environmental conditions at the site beyond those related to the performance of a photovoltaic (PV) system. The purpose of this report is to assess the site for a possible PV installation and estimate the cost and performance of different PV configurations, as well as to recommend financing options that could assist in the implementation of a PV system. In addition to the Vincent Mullins site, four similar landfills in Tucson are included as part of this study.
Date:
January 1, 2013
Creator:
Steen, M.; Lisell, L. & Mosey, G.
System:
The UNT Digital Library
Feasibility Study of Economics and Performance of Solar PV at the Atlas Industrial Park in Duluth, Minnesota
The U.S. Environmental Protection Agency (EPA) Region 5, in accordance with the RE-Powering America's Land initiative, selected the Atlas Industrial Park in Duluth, Minnesota, for a feasibility study of renewable energy production. The EPA provided funding to the National Renewable Energy Laboratory (NREL) to support a feasibility study of solar renewable energy generation at the Atlas Industrial Park. NREL provided technical assistance for this project but did not assess environmental conditions at the site beyond those related to the performance of a photovoltaic (PV) system. The purpose of this study is to assess the site for a possible PV installation and estimate the cost, performance, and site impacts of different PV configurations. In addition, the study evaluates financing options that could assist in the implementation of a PV system at the site.
Date:
January 1, 2013
Creator:
Steen, M.; Lisell, L. & Mosey, G.
System:
The UNT Digital Library
Final Technical Progress Report: Development of Low-Cost Suspension Heliostat; December 7, 2011 - December 6, 2012
Final technical progress report of SunShot Incubator Solaflect Energy. The project succeeded in demonstrating that the Solaflect Suspension Heliostat design is viable for large-scale CSP installations. Canting accuracy is acceptable and is continually improving as Solaflect improves its understanding of this design. Cost reduction initiatives were successful, and there are still many opportunities for further development and further cost reduction.
Date:
January 1, 2013
Creator:
Bender, W.
System:
The UNT Digital Library
A First Preliminary Look: Are Corridor Charging Stations Used to Extend the Range of Electric Vehicles in The EV Project?
A preliminary analysis of data from The EV Project was performed to begin answering the question: are corridor charging stations used to extend the range of electric vehicles? Data analyzed were collected from Blink brand electric vehicle supply equipment (EVSE) units based in California, Washington, and Oregon. Analysis was performed on data logged between October 1, 2012 and January 1, 2013. It should be noted that as additional AC Level 2 EVSE and DC fast chargers are deployed, and as drivers become more familiar with the use of public charging infrastructure, future analysis may have dissimilar conclusions.
Date:
January 1, 2013
Creator:
Smart, John
System:
The UNT Digital Library
Formation of algae growth constitutive relations for improved algae modeling.
This SAND report summarizes research conducted as a part of a two year Laboratory Directed Research and Development (LDRD) project to improve our abilities to model algal cultivation. Algae-based biofuels have generated much excitement due to their potentially large oil yield from relatively small land use and without interfering with the food or water supply. Algae mitigate atmospheric CO2 through metabolism. Efficient production of algal biofuels could reduce dependence on foreign oil by providing a domestic renewable energy source. Important factors controlling algal productivity include temperature, nutrient concentrations, salinity, pH, and the light-to-biomass conversion rate. Computational models allow for inexpensive predictions of algae growth kinetics in these non-ideal conditions for various bioreactor sizes and geometries without the need for multiple expensive measurement setups. However, these models need to be calibrated for each algal strain. In this work, we conduct a parametric study of key marine algae strains and apply the findings to a computational model.
Date:
January 1, 2013
Creator:
Gharagozloo, Patricia E. & Drewry, Jessica L.
System:
The UNT Digital Library
From the Building to the Grid: An Energy Revolution and Modeling Challenge; Workshop Proceedings
This report summarizes the workshop entitled: From the Building to the Grid: An Energy Revolution and Modeling Challenge. The first workshop was held May 1-2, 2012 on NREL's campus in Golden, Colorado. The second was held June 6-7, 2012 at the University College Dublin, in Dublin, Ireland.
Date:
January 1, 2013
Creator:
Kroposki, B.; Komomua, C. & O'Malley, M.
System:
The UNT Digital Library
Fuel Cell Technology Status Analysis Project: Partnership Opportunities (Fact Sheet)
This fact sheet describes opportunities for leading fuel cell industry partners from the United States and abroad to participate in an objective and credible fuel cell technology performance and durability analysis by sharing their raw fuel cell test data related to operations, maintenance, safety, and cost with the National Renewable Energy Laboratory via the Hydrogen Secure Data Center.
Date:
January 1, 2013
Creator:
unknown
System:
The UNT Digital Library