National Library of Energy BETA

Sample records for update cycle model

  1. Updated Life-Cycle Assessment of Aluminum Production and Semi-fabrication for the GREET Model

    SciTech Connect (OSTI)

    Dai, Qiang; Kelly, Jarod C.; Burnham, Andrew; Elgowainy, Amgad

    2015-09-01

    This report serves as an update for the life-cycle analysis (LCA) of aluminum production based on the most recent data representing the state-of-the-art of the industry in North America. The 2013 Aluminum Association (AA) LCA report on the environmental footprint of semifinished aluminum products in North America provides the basis for the update (The Aluminum Association, 2013). The scope of this study covers primary aluminum production, secondary aluminum production, as well as aluminum semi-fabrication processes including hot rolling, cold rolling, extrusion and shape casting. This report focuses on energy consumptions, material inputs and criteria air pollutant emissions for each process from the cradle-to-gate of aluminum, which starts from bauxite extraction, and ends with manufacturing of semi-fabricated aluminum products. The life-cycle inventory (LCI) tables compiled are to be incorporated into the vehicle cycle model of Argonne National Laboratory’s Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) Model for the release of its 2015 version.

  2. Updating the LED Life Cycle Assessment

    Energy Savers [EERE]

    Part 2: LED Manufacturing and Performance 7 Goal of the New Study Review new literature on the life- cycle assessment of LED products. Determine if newer A-19 products...

  3. Annual Energy Outlook 2014 Modeling Updates

    Gasoline and Diesel Fuel Update (EIA)

    Analysis; Energy Consumption and Efficiency Analysis July 23, 2013 | Washington, DC Annual Energy Outlook 2014: Modeling Updates in the Transportation Sector Overview 2 AEO2014 Transportation Model Updates Washington, D.C., July 2013 Discussion purposes only - Do not cite or circulate * Light-duty vehicle - Vehicle miles traveled by age cohort, update modeling parameters, employment and VMT - E85 demand - Battery electric vehicle cost, efficiency, and availability * Heavy-duty vehicle, rail,

  4. Greenland Ice Sheet Modeling Update (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Greenland Ice Sheet Modeling Update Citation Details In-Document Search Title: Greenland Ice Sheet Modeling Update You are accessing a document from the Department of Energy's...

  5. OSPREY Model Development Status Update

    SciTech Connect (OSTI)

    Veronica J Rutledge

    2014-04-01

    During the processing of used nuclear fuel, volatile radionuclides will be discharged to the atmosphere if no recovery processes are in place to limit their release. The volatile radionuclides of concern are 3H, 14C, 85Kr, and 129I. Methods are being developed, via adsorption and absorption unit operations, to capture these radionuclides. It is necessary to model these unit operations to aid in the evaluation of technologies and in the future development of an advanced used nuclear fuel processing plant. A collaboration between Fuel Cycle Research and Development Offgas Sigma Team member INL and a NEUP grant including ORNL, Syracuse University, and Georgia Institute of Technology has been formed to develop off gas models and support off gas research. Georgia Institute of Technology is developing fundamental level model to describe the equilibrium and kinetics of the adsorption process, which are to be integrated with OSPREY. This report discusses the progress made on expanding OSPREY to be multiple component and the integration of macroscale and microscale level models. Also included in this report is a brief OSPREY user guide.

  6. Municipal Consortium Releases Updated Model Specification for...

    Energy Savers [EERE]

    for LED Roadway Luminaires Municipal Consortium Releases Updated Model Specification for LED Roadway Luminaires July 10, 2014 - 10:23am Addthis The U.S. Department of Energy's ...

  7. Update 1 to: A Dispersion Modeling Analysis of Downwash from Mirant's

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potomac River Power Plant, Modeling Unit 1 Emissions in a Cycling Mode | Department of Energy 1 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Unit 1 Emissions in a Cycling Mode Update 1 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Unit 1 Emissions in a Cycling Mode Docket No. EO-05-01. This report describes dispersion modeling performed for Unit 1 at Mirant's Potomac River Generating

  8. Update 5 to: A Dispersion Modeling Analysis of Downwash from Mirant's

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potomac River Power Plant: Modeling Cycling Units 1, 2 plus One Baseload Unit | Department of Energy 5 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant: Modeling Cycling Units 1, 2 plus One Baseload Unit Update 5 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant: Modeling Cycling Units 1, 2 plus One Baseload Unit Docket No. EO-05-01: This report describes dispersion modeling performed for simultaneous operation of one

  9. An Updated Site Scale Saturated Zone Ground Water Transport Model...

    Office of Scientific and Technical Information (OSTI)

    An Updated Site Scale Saturated Zone Ground Water Transport Model for Yucca Mountain. Citation Details In-Document Search Title: An Updated Site Scale Saturated Zone Ground Water ...

  10. JBEI Updates Techno-Economic Modeling Tools for Biofuels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Updates Techno-Economic Modeling Tools for Biofuels - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste

  11. Duty Cycle Software Model

    Energy Science and Technology Software Center (OSTI)

    2010-12-31

    The Software consists of code which is capable of processing a large volume of data to create a “duty cycle” which is representative of how equipment will function under certain conditions.

  12. Simple ocean carbon cycle models

    SciTech Connect (OSTI)

    Caldeira, K.; Hoffert, M.I.; Siegenthaler, U.

    1994-02-01

    Simple ocean carbon cycle models can be used to calculate the rate at which the oceans are likely to absorb CO{sub 2} from the atmosphere. For problems involving steady-state ocean circulation, well calibrated ocean models produce results that are very similar to results obtained using general circulation models. Hence, simple ocean carbon cycle models may be appropriate for use in studies in which the time or expense of running large scale general circulation models would be prohibitive. Simple ocean models have the advantage of being based on a small number of explicit assumptions. The simplicity of these ocean models facilitates the understanding of model results.

  13. Modeling the Nuclear Fuel Cycle

    SciTech Connect (OSTI)

    Jacob J. Jacobson; A. M. Yacout; G. E. Matthern; S. J. Piet; A. Moisseytsev

    2005-07-01

    The Advanced Fuel Cycle Initiative is developing a system dynamics model as part of their broad systems analysis of future nuclear energy in the United States. The model will be used to analyze and compare various proposed technology deployment scenarios. The model will also give a better understanding of the linkages between the various components of the nuclear fuel cycle that includes uranium resources, reactor number and mix, nuclear fuel type and waste management. Each of these components is tightly connected to the nuclear fuel cycle but usually analyzed in isolation of the other parts. This model will attempt to bridge these components into a single model for analysis. This work is part of a multi-national laboratory effort between Argonne National Laboratory, Idaho National Laboratory and United States Department of Energy. This paper summarizes the basics of the system dynamics model and looks at some results from the model.

  14. Annual Energy Outlook 2015 Modeling updates in the Transportation sector

    Gasoline and Diesel Fuel Update (EIA)

    For AEO2015 Working Group July 30, 2014 | Washington, DC By Nicholas Chase, Trisha Hutchins, John Maples Office of Energy Consumption and Efficiency Analysis Modeling updates in the transportation sector Data updates 2 * Update historical fuel consumption data to latest state energy data (2011), annual national data from Monthly Energy Review (2012), and most recent Short-Term Energy Outlook * Update historical light-duty vehicle attribute data through 2013 (pending) * Update historical

  15. Sandia National Laboratories Releases Updated Wind Plant Modeling

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Guidelines | Department of Energy Sandia National Laboratories Releases Updated Wind Plant Modeling Guidelines Sandia National Laboratories Releases Updated Wind Plant Modeling Guidelines September 12, 2014 - 12:21pm Addthis Sandia National Laboratories (Sandia), in collaboration with the Western Electricity Coordinating Council's (WECC's) Renewable Energy Modeling Task Force (REMTF), has released an updated version of the WECC Wind Plant Dynamic Modeling Guidelines for the second generation

  16. Sandia National Laboratories Releases Updated Wind Plant Modeling...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sandia National Laboratories Releases Updated Wind Plant Modeling Guidelines Revamped Simulation Tool to Power Up Wave Energy Development DOE's AVESTAR Center to Expand Research, ...

  17. Update 4 to: A Dispersion Modeling Analysis of Downwash from...

    Energy Savers [EERE]

    and maximum loads will not cause or contribute to exceedances of the National Ambient Air Quality Standards (NAAQS). PDF icon Update 4 to: A Dispersion Modeling Analysis of...

  18. Integrated Climate and Carbon-cycle Model

    Energy Science and Technology Software Center (OSTI)

    2006-03-06

    The INCCA model is a numerical climate and carbon cycle modeling tool for use in studying climate change and carbon cycle science. The model includes atmosphere, ocean, land surface, and sea ice components.

  19. Municipal Consortium Releases Updated Model Specification for LED Roadway

    Energy Savers [EERE]

    Luminaires | Department of Energy for LED Roadway Luminaires Municipal Consortium Releases Updated Model Specification for LED Roadway Luminaires July 10, 2014 - 10:23am Addthis The U.S. Department of Energy's Municipal Solid-State Street Lighting Consortium (MSSLC) has released the first updated version of its Model Specification for LED Roadway Luminaires. A "living document" that's updated as needed to reflect changes in technologies and associated standards, and to incorporate

  20. An Updated Numerical Model Of The Larderello-Travale Geothermal...

    Open Energy Info (EERE)

    Numerical Model Of The Larderello-Travale Geothermal System, Italy Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: An Updated Numerical Model Of...

  1. Life Cycle Modeling of Propulsion Materials | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Life Cycle Modeling of Propulsion Materials Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Technical Cost Modeling - Life Cycle ...

  2. Update 1 to: A Dispersion Modeling Analysis of Downwash from...

    Energy Savers [EERE]

    in a calendar day will not cause or contribute to exceedances of the National Ambient Air Quality Standards (NAAQS). PDF icon Update 1 to: A Dispersion Modeling Analysis of...

  3. Update 3 to: A Dispersion Modeling Analysis of Downwash from...

    Energy Savers [EERE]

    in a calendar day will not cause or contribut to excceedences of the National Ambient Air Quality Standards (NAAQS). PDF icon Update 2 to: A Dispersion Modeling Analysis of...

  4. Municipal Consortium Releases Updated Model Specification for Networked

    Energy Savers [EERE]

    Outdoor Lighting Control Systems | Department of Energy for Networked Outdoor Lighting Control Systems Municipal Consortium Releases Updated Model Specification for Networked Outdoor Lighting Control Systems April 30, 2014 - 4:23pm Addthis The U.S. Department of Energy's Municipal Solid-State Street Lighting Consortium (MSSLC) has released an update to its Model Specification for Adaptive Control and Remote Monitoring of LED Roadway Luminaires, V1.0. The new resource has been renamed to

  5. VISION: Verifiable Fuel Cycle Simulation Model

    SciTech Connect (OSTI)

    Jacob J. Jacobson; Abdellatif M. Yacout; Gretchen E. Matthern; Steven J. Piet; David E. Shropshire

    2009-04-01

    The nuclear fuel cycle is a very complex system that includes considerable dynamic complexity as well as detail complexity. In the nuclear power realm, there are experts and considerable research and development in nuclear fuel development, separations technology, reactor physics and waste management. What is lacking is an overall understanding of the entire nuclear fuel cycle and how the deployment of new fuel cycle technologies affects the overall performance of the fuel cycle. The Advanced Fuel Cycle Initiative’s systems analysis group is developing a dynamic simulation model, VISION, to capture the relationships, timing and delays in and among the fuel cycle components to help develop an understanding of how the overall fuel cycle works and can transition as technologies are changed. This paper is an overview of the philosophy and development strategy behind VISION. The paper includes some descriptions of the model and some examples of how to use VISION.

  6. Updated

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Updated 11/23/2015 Acquisition Description/ Category Solicitation Method Contract Type Period of Performance Contract Value DOE-Wide commercial low-level waste treatment Energy Solutions, Inc. Perma-Fix Environmental Services, Inc. Philo-Technics, Ltd. Studsvik, Inc. Full and Open Competition Firm Fixed Price IDIQ 6/30/08-6/29/13 $450M Multiple award indefinite delivery/indefinite quality (IDIQ) Set-aside contracts for nationwide environmental services/ environmental cleanup Clauss Construction

  7. Microsoft Word - Updated Air Dispersion Modeling Table _sulfur_.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DIVINE STRAKE AIR DISPERSION MODELING RESULTS for SULFUR DIOXIDE The attached table is updated to include estimated sulfur dioxide concentrations resulting from the Divine Strake Experiment. Output from the POLU4WN model was used to estimate quantities of all emissions from the proposed explosive experiment. All emissions of oxides of sulfur were combined to provide input into Open Burn/Open Detonation Model (OBODM) to model the dispersion; thus overestimating the concentration of sulfur dioxide

  8. Update on Modeling for Effective Diesel Engine Aftertreatment

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Implementation - Master Plan, Status and Critical Needs | Department of Energy Modeling for Effective Diesel Engine Aftertreatment Implementation - Master Plan, Status and Critical Needs Update on Modeling for Effective Diesel Engine Aftertreatment Implementation - Master Plan, Status and Critical Needs An integrated diesel engine-aftertreatment-vehicle system is extremely complex with numerous interacting variables and an unlimited number of control options. An experimental approach to

  9. Critical Updates to the Hydrogen Analysis Production Model (H2A...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Critical Updates to the Hydrogen Analysis Production Model (H2A v3) Critical Updates to the Hydrogen Analysis Production Model (H2A v3) Presentation slides from the February 8,...

  10. VHTR Prismatic Super Lattice Model for Equilibrium Fuel Cycle Analysis

    SciTech Connect (OSTI)

    G. S. Chang

    2006-09-01

    The advanced Very High Temperature gas-cooled Reactor (VHTR), which is currently being developed, achieves simplification of safety through reliance on innovative features and passive systems. One of the VHTRs innovative features is the reliance on ceramic-coated fuel particles to retain the fission products under extreme accident conditions. The effect of the random fuel kernel distribution in the fuel prismatic block is addressed through the use of the Dancoff correction factor in the resonance treatment. However, if the fuel kernels are not perfect black absorbers, the Dancoff correction factor is a function of burnup and fuel kernel packing factor, which requires that the Dancoff correction factor be updated during Equilibrium Fuel Cycle (EqFC) analysis. An advanced Kernel-by-Kernel (K-b-K) hexagonal super lattice model can be used to address and update the burnup dependent Dancoff effect during the EqFC analysis. The developed Prismatic Super Homogeneous Lattice Model (PSHLM) is verified by comparing the calculated burnup characteristics of the double-heterogeneous Prismatic Super Kernel-by-Kernel Lattice Model (PSK-b-KLM). This paper summarizes and compares the PSHLM and PSK-b-KLM burnup analysis study and results. This paper also discusses the coupling of a Monte-Carlo code with fuel depletion and buildup code, which provides the fuel burnup analysis tool used to produce the results of the VHTR EqFC burnup analysis.

  11. Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion 2009 DOE Hydrogen Program ...

  12. Technical Cost Modeling - Life Cycle Analysis Basis for Program...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Polymer Composites Research in the LM ...

  13. Update of distillers grains displacement ratios for corn ethanol life-cycle analysis.

    SciTech Connect (OSTI)

    Arora, S.; Wu, M.; Wang, M.; Energy Systems

    2011-02-01

    Production of corn-based ethanol (either by wet milling or by dry milling) yields the following coproducts: distillers grains with solubles (DGS), corn gluten meal (CGM), corn gluten feed (CGF), and corn oil. Of these coproducts, all except corn oil can replace conventional animal feeds, such as corn, soybean meal, and urea. Displacement ratios of corn-ethanol coproducts including DGS, CGM, and CGF were last updated in 1998 at a workshop at Argonne National Laboratory on the basis of input from a group of experts on animal feeds, including Prof. Klopfenstein (University of Nebraska, Lincoln), Prof. Berger (University of Illinois, Urbana-Champaign), Mr. Madson (Rapheal Katzen International Associates, Inc.), and Prof. Trenkle (Iowa State University) (Wang 1999). Table 1 presents current dry milling coproduct displacement ratios being used in the GREET model. The current effort focuses on updating displacement ratios of dry milling corn-ethanol coproducts used in the animal feed industry. Because of the increased availability and use of these coproducts as animal feeds, more information is available on how these coproducts replace conventional animal feeds. To glean this information, it is also important to understand how industry selects feed. Because of the wide variety of available feeds, animal nutritionists use commercial software (such as Brill Formulation{trademark}) for feed formulation. The software recommends feed for the animal on the basis of the nutritional characteristics, availability, and price of various animal feeds, as well as on the nutritional requirements of the animal (Corn Refiners Association 2006). Therefore, feed formulation considers both the economic and the nutritional characteristics of feed products.

  14. Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    simultaneously accommodate the three m 2 regimes observed by the experiments. A dras- tic remedy to the Standard Model (minimally ex- tended to include neutrino oscillations) is...

  15. Assessment of the 60 km rapid update cycle (RUC) with near real-time aircraft reports. Project report

    SciTech Connect (OSTI)

    Cole, R.E.; Richard, C.; Kim, S.; Bailey, D.

    1998-07-15

    The National Aeronautics and Space Administration (NASA) is developing the Center-TRA-CON Advisory System (CTAS), a set of Air Traffic Management (ATM) Decision Support Tools (DST) for en route (Center) and terminal (TRACON) airspace designed to enable controllers to increase capacity and flight efficiency. A crucial component of the CTAS, or any ATM DST, is the computation of the time-of-flight of aircraft along flight path segments. Earlier NASA studies show that accurate knowledge of the wind through which the aircraft are flying is required to estimate time-of-flight accurately. There are current envisioned to be two sources of wind data for CTAS: The Rapid Update Cycle (RUC) for the Center airspace, a numerical model developed by the National Oceanic and Atmospheric Administration (NOAA) Forecast System Laboratory (FSL) and run operationally by the National Weather Service (NWS) National Center for Environmental Prediction (NCEP); and The Integrated Terminal Weather System (ITWS) Terminal Winds (TW) for the TRACON airspace, developed at MIT Lincoln Laboratory under funding from the Federal Aviation Administration (FAA). This study has three goals: (1) determine the errors in the baseline 60 km resolution RUC forecast wind fields relative to the needs of en route DSTs such as CTAS, (2) determine the benefit of using the TW algorithm to refine the RUC forecast wind fields with near real-time Meteorological Data Collection and Reporting System (MDCRS) reports, and (3) identify factors that influence wind errors in order to improve accuracy and estimate errors in real time.

  16. Review of the ENSR Report Titled "Update 1 to: A Dispersion Modeling...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Review of the ENSR Report Titled "Update 1 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant" Review of the ENSR Report Titled "Update 1 to: A ...

  17. The Potosi Reservoir Model 2013c, Property Modeling Update

    SciTech Connect (OSTI)

    Adushita, Yasmin; Smith, Valerie; Leetaru, Hannes

    2014-09-30

    As part of a larger project co-funded by the United States Department of Energy (US DOE) to evaluate the potential of formations within the Cambro-Ordovician strata above the Mt. Simon as potential targets for carbon sequestration in the Illinois and Michigan Basins, the Illinois Clean Coal Institute (ICCI) requested Schlumberger to evaluate the potential injectivity and carbon dioxide (CO2) plume size of the Cambrian Potosi Formation. The evaluation of this formation was accomplished using wireline data, core data, pressure data, and seismic data from this project as well as two other separately funded projects: the US DOE-funded Illinois Basin–Decatur Project (IBDP) being conducted by the Midwest Geological Sequestration Consortium (MGSC) in Macon County, Illinois, and the Illinois Industrial Carbon Capture and Sequestration (ICCS) project funded through the American Recovery and Reinvestment Act. In 2010, technical performance evaluations on the Cambrian Potosi Formation were performed through reservoir modeling. The data included formation tops from mud logs, well logs from the Verification Well #1 (VW1) and the Injection Well (CCS1), structural and stratigraphic formation from three dimensional (3D) seismic data, and field data from several waste water injection wells for Potosi Formation. The intention was for 2.2 million tons per annum (2 million tonnes per annum [MTPA]) of CO2 to be injected for 20 years. In the Task Error! Reference source not found., the 2010 Potosi heterogeneous model (referred to as the "Potosi Dynamic Model 2010") was re-run using a new injection scenario of 3.5 million tons per annum (3.2 MTPA) for 30 years. The extent of the Potosi Dynamic Model 2010, however, appeared too small for the new injection target. The models size was insufficient to accommodate the evolution of the plume. The new model, Potosi Dynamic Model 2013a, was built by extending the Potosi Dynamic Model 2010 grid to 30 by 30 mi (48 by 48 km), while preserving all property modeling workflows and layering. This model was retained as the base case. In the preceding Task [1], the Potosi reservoir model was updated to take into account the new data from the Verification Well #2 (VW2) which was drilled in 2012. The porosity and permeability modeling was revised to take into account the log data from the new well. Revisions of the 2010 modeling assumptions were also done on relative permeability, capillary pressures, formation water salinity, and the maximum allowable well bottomhole pressure. Dynamic simulations were run using the injection target of 3.5 million tons per annum (3.2 MTPA) for 30 years. This dynamic model was named Potosi Dynamic Model 2013b. In this Task, a new property modeling workflow was applied, where seismic inversion data guided the porosity mapping and geobody extraction. The static reservoir model was fully guided by PorosityCube interpretations and derivations coupled with petrophysical logs from three wells. The two main assumptions are: porosity features in the PorosityCube that correlate with lost circulation zones represent vugular zones, and that these vugular zones are laterally continuous. Extrapolation was done carefully to populate the vugular facies and their corresponding properties outside the seismic footprint up to the boundary of the 30 by 30 mi (48 by 48 km) model. Dynamic simulations were also run using the injection target of 3.5 million tons per annum (3.2 MTPA) for 30 years. This new dynamic model was named Potosi Dynamic Model 2013c. Reservoir simulation with the latest model gives a cumulative injection of 43 million tons (39 MT) in 30 years with a single well, which corresponds to 40% of the injection target. The injection rate is approx. 3.2 MTPA in the first six months as the well is injecting into the surrounding vugs, and declines rapidly to 1.8 million tons per annum (1.6 MTPA) in year 3 once the surrounding vugs are full and the CO2 start to reach the matrix. After, the injection rate declines gradually to 1.2 million tons per annum (1.1 MTPA) in year 18 and stays constant. This implies that a minimum of three (3) wells could be required in the Potosi to reach the injection target. The injectivity evaluated in this Task was higher compared to the preceding Task, since the current facies modeling (guided by the porosity map from the seismic inversion) indicated a higher density of vugs within the vugular zones. 5 As the CO2 follows the paths where vugs interconnection exists, a reasonably large and irregular plume extent was created. After 30 years of injection, the plume extends 13.7 mi (22 km) in E-W and 9.7 mi (16 km) in N-S directions. After injection finishes, the plume continues to migrate laterally, mainly driven by the remaining pressure gradient. After 60 years post-injection, the plume extends 14.2 mi (22.8 km) in E-W and 10 mi (16 km) in N-S directions, and remains constant as the remaining pressure gradient has become very low. Should the targeted cumulative injection of 106 million tons (96 MT) be achieved; a much larger plume extent could be expected. The increase of reservoir pressure at the end of injection is approximately 1,200 psia (8,274 kPa) around the injector and gradually decreases away from the well. The reservoir pressure increase is less than 10 psia (69 kPa) beyond 14 mi (23 km) away from injector. Should the targeted cumulative injection of 106 million tons (96 MT) be achieved; a much larger areal pressure increase could be expected. The reservoir pressure declines rapidly during the first 30 years post injection and the initial reservoir pressure is nearly restored after 100 years post-injection. The present evaluation is mainly associated with uncertainty on the vugs permeability and interconnectivity. The use of porosity mapping from seismic inversion might have reduced the uncertainty on the lateral vugs body distributions. However, major uncertainties on the Potosi vugs permeability remains. Therefore, injection test and pressure interference test among the wells could be considered to evaluate the local vugs permeability, extent, and interconnectivity. Facies modeling within the Potosi has yet to be thoroughly addressed. The carbonates during the time of deposition are believed to be regionally extensive. However, it may be worth delineating the reservoir with other regional wells or modern day analogues to understand the extent of the Potosi. More specifically, the model could incorporate lateral changes or trends if deemed necessary to represent facies transition. Data acquisitions to characterize the fracture pressure gradient, the formation water properties, the relative permeability, and the capillary pressure could also be considered in order to allow a more rigorous evaluation of the Potosi storage performance. A simulation using several injectors could also be considered to determine the required number of wells and appropriate spacing to achieve the injection target while taking into account the pressure interference.

  18. Bioproduct Life Cycle Analysis with the GREET Model | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bioeconomy Bioproduct Life Cycle Analysis with the GREETTM Model Jennifer B. Dunn, Biofuel Life Cycle Analysis Team Lead, Argonne National Laboratory PDF icon ...

  19. Emissions Modeling: GREET Life Cycle Analysis

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Emissions Modeling: GREET Life Cycle Analysis Michael Wang, Amgad Elgowainy, Jeongwoo Han Argonne National Laboratory The 2014 DOE Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting Washington, DC June 18, 2014 This presentation does not contain any proprietary, confidential, or otherwise restricted information Project ID: van002 Project Overview  Start: Oct. 1993  End: not applicable (ongoing annual allocation  % complete: 70% (for FY14)  Indicators and

  20. A general simulation model for Stirling cycles

    SciTech Connect (OSTI)

    Schulz, S.; Schwendig, F.

    1996-01-01

    A mathematical model for the calculation of the Stirling cycle and of similar processes is presented. The model comprises a method to reproduce schematically any kind of process configuration, including free piston engines. The differential balance equations describing the process are solved by a stable integration algorithm. Heat transfer and pressure loss are calculated by using new correlations, which consider the special conditions of the periodic compression/expansion respectively of the oscillating flow. A comparison between experimental data achieved by means of a test apparatus and calculated data shows a good agreement.

  1. DOE Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1.1) Model

    Broader source: Energy.gov [DOE]

    Presentation slides from the Fuel Cell Technologies Program webinar, DOE Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1.1) Model, held December 11, 2012.

  2. Critical Updates to the Hydrogen Analysis Production Model (H2A v3)

    Broader source: Energy.gov [DOE]

    Presentation slides from the February 8, 2012, Fuel Cell Technologies Program webinar, "Critical Updates to the Hydrogen Analysis Production Model (H2A v3)".

  3. An Updated Central and Eastern United States Ground-Motion Model

    Broader source: Energy.gov [DOE]

    An Updated Central and Eastern United States Ground-Motion Model Lawrence Salomone Pinnacle Specialty Group, Inc. DOE NPH Meeting October 21-22, 2014

  4. Bioproduct Life Cycle Analysis with the GREET Model

    Broader source: Energy.gov [DOE]

    Breakout Session 2B—Integration of Supply Chains II: Bioproducts—Enabling Biofuels and Growing the Bioeconomy Bioproduct Life Cycle Analysis with the GREET Model Jennifer B. Dunn, Biofuel Life Cycle Analysis Team Lead, Argonne National Laboratory

  5. Updated Conceptual Model for the 300 Area Uranium Groundwater Plume

    SciTech Connect (OSTI)

    Zachara, John M.; Freshley, Mark D.; Last, George V.; Peterson, Robert E.; Bjornstad, Bruce N.

    2012-11-01

    The 300 Area uranium groundwater plume in the 300-FF-5 Operable Unit is residual from past discharge of nuclear fuel fabrication wastes to a number of liquid (and solid) disposal sites. The source zones in the disposal sites were remediated by excavation and backfilled to grade, but sorbed uranium remains in deeper, unexcavated vadose zone sediments. In spite of source term removal, the groundwater plume has shown remarkable persistence, with concentrations exceeding the drinking water standard over an area of approximately 1 km2. The plume resides within a coupled vadose zone, groundwater, river zone system of immense complexity and scale. Interactions between geologic structure, the hydrologic system driven by the Columbia River, groundwater-river exchange points, and the geochemistry of uranium contribute to persistence of the plume. The U.S. Department of Energy (DOE) recently completed a Remedial Investigation/Feasibility Study (RI/FS) to document characterization of the 300 Area uranium plume and plan for beginning to implement proposed remedial actions. As part of the RI/FS document, a conceptual model was developed that integrates knowledge of the hydrogeologic and geochemical properties of the 300 Area and controlling processes to yield an understanding of how the system behaves and the variables that control it. Recent results from the Hanford Integrated Field Research Challenge site and the Subsurface Biogeochemistry Scientific Focus Area Project funded by the DOE Office of Science were used to update the conceptual model and provide an assessment of key factors controlling plume persistence.

  6. Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon lm001_das_2010_o.pdf More Documents & Publications Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Life Cycle Modeling of Propulsion Materials

  7. User's guide to the MESOI diffusion model and to the utility programs UPDATE and LOGRVU

    SciTech Connect (OSTI)

    Athey, G.F.; Allwine, K.J.; Ramsdell, J.V.

    1981-11-01

    MESOI is an interactive, Lagrangian puff trajectory diffusion model. The model is documented separately (Ramsdell and Athey, 1981); this report is intended to provide MESOI users with the information needed to successfully conduct model simulations. The user is also provided with guidance in the use of the data file maintenance and review programs; UPDATE and LOGRVU. Complete examples are given for the operaton of all three programs and an appendix documents UPDATE and LOGRVU.

  8. Software Requirements Specification Verifiable Fuel Cycle Simulation (VISION) Model

    SciTech Connect (OSTI)

    D. E. Shropshire; W. H. West

    2005-11-01

    The purpose of this Software Requirements Specification (SRS) is to define the top-level requirements for a Verifiable Fuel Cycle Simulation Model (VISION) of the Advanced Fuel Cycle (AFC). This simulation model is intended to serve a broad systems analysis and study tool applicable to work conducted as part of the AFCI (including costs estimates) and Generation IV reactor development studies.

  9. Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon lm001_das_2011_o.pdf More Documents & Publications Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Multi-Material Joining: Challenges and Opportunities

  10. Review of the ENSR Report Titled "Update 1 to: A Dispersion Modeling

    Energy Savers [EERE]

    Analysis of Downwash from Mirant's Potomac River Power Plant" | Department of Energy Review of the ENSR Report Titled "Update 1 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant" Review of the ENSR Report Titled "Update 1 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant" Docket No. EO-05-01. Sullivan Environmental Consulting, Inc. has prepared a review of the "Update 1 to: A Dispersion

  11. An Updated Site Scale Saturated Zone Ground Water Transport Model for Yucca

    Office of Scientific and Technical Information (OSTI)

    Mountain. (Conference) | SciTech Connect An Updated Site Scale Saturated Zone Ground Water Transport Model for Yucca Mountain. Citation Details In-Document Search Title: An Updated Site Scale Saturated Zone Ground Water Transport Model for Yucca Mountain. Abstract not provided. Authors: Arnold, Bill Walter ; Kelkar, Sharad ; Ding, Mei ; Chu, Shaoping ; ROBINSON, BRUCE ; Meijer, Arend Publication Date: 2007-09-01 OSTI Identifier: 1147462 Report Number(s): SAND2007-5874C 521772 DOE Contract

  12. Update 5 to: A Dispersion Modeling Analysis of Downwash from...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of one baseload unit and two cycling units at Mirant's Potomac River Generating Station (PRGS). ... of Energy regarding District of Columbia Public Service Commission, Docket No. ...

  13. COLLOQUIUM: Ensemble Modeling of Climate-Carbon Cycle Interactions |

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Princeton Plasma Physics Lab January 23, 2013, 4:15pm to 6:30pm Colloquia MBG Auditorium COLLOQUIUM: Ensemble Modeling of Climate-Carbon Cycle Interactions Dr. John Krasting Geophysical Fluid Dynamics Laboratory Abstract: PDF icon COLL.01.23.13.pdf The interactions between Earth's carbon cycle and climate are key to understanding both past and future climate change. NOAA-GFDL developed two coupled climate-carbon cycle models - or Earth System Models (ESMs) - that are able to simulate these

  14. An update on land-ice modeling in the CESM (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    An update on land-ice modeling in the CESM Citation Details In-Document Search Title: An update on land-ice modeling in the CESM Mass loss from land ice, including the Greenland and Antarctic ice sheets as well as smaller glacier and ice caps, is making a large and growing contribution to global sea-level rise. Land ice is only beginning to be incorporated in climate models. The goal of the Land Ice Working Group (LIWG) is to develop improved land-ice models and incorporate them in CESM, in

  15. Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon lm001_das_2012_o.pdf More Documents & Publications Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Polymer Composites Research in the LM Materials Program Overview

  16. Update 2 to: A Dispersion Modeling Analysis of Downwash from Mirant's

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potomac River Power Plant, Modeling Unit 1 Emissions at Maximum and Minimum Loads | Department of Energy 2 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Unit 1 Emissions at Maximum and Minimum Loads Update 2 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Unit 1 Emissions at Maximum and Minimum Loads Docket No. EO-05-01. This report describes AERMOD modeling results performed for Unit 1 at

  17. Update 4 to: A Dispersion Modeling Analysis of Downwash from Mirant's

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potomac River Power Plant, Modeling Unit 4 Emissions at Maximum and Minimum Loads | Department of Energy 4 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Unit 4 Emissions at Maximum and Minimum Loads Update 4 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Unit 4 Emissions at Maximum and Minimum Loads Docket No. EO-05-01. This report describes dispersion modeling performed for Unit 4 at

  18. Advanced Test Reactor Core Modeling Update Project Annual Report for Fiscal Year 2012

    SciTech Connect (OSTI)

    David W. Nigg, Principal Investigator; Kevin A. Steuhm, Project Manager

    2012-09-01

    Legacy computational reactor physics software tools and protocols currently used for support of Advanced Test Reactor (ATR) core fuel management and safety assurance, and to some extent, experiment management, are inconsistent with the state of modern nuclear engineering practice, and are difficult, if not impossible, to properly verify and validate (V&V) according to modern standards. Furthermore, the legacy staff knowledge required for application of these tools and protocols from the 1960s and 1970s is rapidly being lost due to staff turnover and retirements. In late 2009, the Idaho National Laboratory (INL) initiated a focused effort, the ATR Core Modeling Update Project, to address this situation through the introduction of modern high-fidelity computational software and protocols. This aggressive computational and experimental campaign will have a broad strategic impact on the operation of the ATR, both in terms of improved computational efficiency and accuracy for support of ongoing DOE programs as well as in terms of national and international recognition of the ATR National Scientific User Facility (NSUF). The ATR Core Modeling Update Project, targeted for full implementation in phase with the next anticipated ATR Core Internals Changeout (CIC) in the 2014-2015 time frame, began during the last quarter of Fiscal Year 2009, and has just completed its third full year. Key accomplishments so far have encompassed both computational as well as experimental work. A new suite of stochastic and deterministic transport theory based reactor physics codes and their supporting nuclear data libraries (HELIOS, KENO6/SCALE, NEWT/SCALE, ATTILA, and an extended implementation of MCNP5) has been installed at the INL under various licensing arrangements. Corresponding models of the ATR and ATRC are now operational with all five codes, demonstrating the basic feasibility of the new code packages for their intended purpose. Of particular importance, a set of as-run core depletion HELIOS calculations for all ATR cycles since August 2009, Cycle 145A through Cycle 151B, was successfully completed during 2012. This major effort supported a decision late in the year to proceed with the phased incorporation of the HELIOS methodology into the ATR Core Safety Analysis Package (CSAP) preparation process, in parallel with the established PDQ-based methodology, beginning late in Fiscal Year 2012. Acquisition of the advanced SERPENT (VTT-Finland) and MC21 (DOE-NR) Monte Carlo stochastic neutronics simulation codes was also initiated during the year and some initial applications of SERPENT to ATRC experiment analysis were demonstrated. These two new codes will offer significant additional capability, including the possibility of full-3D Monte Carlo fuel management support capabilities for the ATR at some point in the future. Finally, a capability for rigorous sensitivity analysis and uncertainty quantification based on the TSUNAMI system has been implemented and initial computational results have been obtained. This capability will have many applications as a tool for understanding the margins of uncertainty in the new models as well as for validation experiment design and interpretation.

  19. Bioproduct Life Cycle Analysis with the GREETTM Model

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bioproduct Life Cycle Analysis with the GREET TM Model Jennifer B. Dunn Biofuel Life Cycle Analysis Team Lead Systems Assessment Group Argonne National Laboratory Biomass 2014 July 29 and 30, 2014 Selection of bioproducts based on a high-level market analysis 2 Algae Glycerol 1,3-Propanediol Propylene glycol Lipid extraction and hydrogenation Catalytic hydrogenolysis Fermentation Acrylic acid 1,4-Butanediol Clean sugars Isobutanol Polyethylene 3-Hydroxypropionic acid Succinic acid Sugars Corn

  20. Life Cycle Modeling of Propulsion Materials | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon pm034_das_2010_p.pdf More Documents & Publications Life Cycle Modeling of Propulsion Materials Materials for Advanced Turbocharger Designs CF8C PLus: A New Cast Stainless Steel for High-Temperature Diesel Exhaust Components

  1. Update 3 to: A Dispersion Modeling Analysis of Downwash from Mirant's

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potomac River Power Plant, Modeling Units 1 and 4 Together | Department of Energy 3 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Units 1 and 4 Together Update 3 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant, Modeling Units 1 and 4 Together Docket No. EO-05-01. Docket No. EO-05-01. This report describes dispersion modeling performed for Units 1 and 4 at Mirant's Potomac River Generating Station. The

  2. Update 6 to: A Dispersion Modeling Analysis of Downwash from Mirant's

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potomac River Power Plant Modeling Baseload Units 3,4,5 | Department of Energy 6 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant Modeling Baseload Units 3,4,5 Update 6 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant Modeling Baseload Units 3,4,5 Docket No. EO-05-01: This report describes dispersion modeling performed for simultaneous operation of three baseload units at Mirant's Potomac River Generating Station

  3. Update 2 to: A Dispersion Modeling Analysis of Downwash from...

    Office of Environmental Management (EM)

    emissions will not cause or contribute to modeled excceedences of the National Ambient Air Quality Standards (NAAQS). Mirant proposes to use trona on an as needed basis to limit...

  4. An updated summary of MATHEW/ADPIC model evaluation studies

    SciTech Connect (OSTI)

    Foster, K.T.; Dickerson, M.H.

    1990-05-01

    This paper summarizes the major model evaluation studies conducted for the MATHEW/ADPIC atmospheric transport and diffusion models used by the US Department of Energy's Atmospheric Release Advisory Capability. These studies have taken place over the last 15 years and involve field tracer releases influenced by a variety of meteorological and topographical conditions. Neutrally buoyant tracers released both as surface and elevated point sources, as well as material dispersed by explosive, thermally bouyant release mechanisms have been studied. Results from these studies show that the MATHEW/ADPIC models estimate the tracer air concentrations to within a factor of two of the measured values 20% to 50% of the time, and within a factor of five of the measurements 35% to 85% of the time depending on the complexity of the meteorology and terrain, and the release height of the tracer. Comparisons of model estimates to peak downwind deposition and air concentration measurements from explosive releases are shown to be generally within a factor of two to three. 24 refs., 14 figs., 3 tabs.

  5. VISION -- A Dynamic Model of the Nuclear Fuel Cycle

    SciTech Connect (OSTI)

    J. J. Jacobson; A. M. Yacout; S. J. Piet; D. E. Shropshire; G. E. Matthern

    2006-02-01

    The Advanced Fuel Cycle Initiative’s (AFCI) fundamental objective is to provide technology options that – if implemented – would enable long-term growth of nuclear power while improving sustainability and energy security. The AFCI organization structure consists of four areas; Systems Analysis, Fuels, Separations and Transmutations. The Systems Analysis Working Group is tasked with bridging the program technical areas and providing the models, tools, and analyses required to assess the feasibility of design and deploy¬ment options and inform key decision makers. An integral part of the Systems Analysis tool set is the development of a system level model that can be used to examine the implications of the different mixes of reactors, implications of fuel reprocessing, impact of deployment technologies, as well as potential “exit” or “off ramp” approaches to phase out technologies, waste management issues and long-term repository needs. The Verifiable Fuel Cycle Simulation Model (VISION) is a computer-based simulation model that allows performing dynamic simulations of fuel cycles to quantify infrastructure requirements and identify key trade-offs between alternatives. VISION is intended to serve as a broad systems analysis and study tool applicable to work conducted as part of the AFCI (including costs estimates) and Generation IV reactor development studies.

  6. Off-Highway Gasoline Consuption Estimation Models Used in the Federal Highway Administration Attribution Process: 2008 Updates

    SciTech Connect (OSTI)

    Hwang, Ho-Ling; Davis, Stacy Cagle

    2009-12-01

    This report is designed to document the analysis process and estimation models currently used by the Federal Highway Administration (FHWA) to estimate the off-highway gasoline consumption and public sector fuel consumption. An overview of the entire FHWA attribution process is provided along with specifics related to the latest update (2008) on the Off-Highway Gasoline Use Model and the Public Use of Gasoline Model. The Off-Highway Gasoline Use Model is made up of five individual modules, one for each of the off-highway categories: agricultural, industrial and commercial, construction, aviation, and marine. This 2008 update of the off-highway models was the second major update (the first model update was conducted during 2002-2003) after they were originally developed in mid-1990. The agricultural model methodology, specifically, underwent a significant revision because of changes in data availability since 2003. Some revision to the model was necessary due to removal of certain data elements used in the original estimation method. The revised agricultural model also made use of some newly available information, published by the data source agency in recent years. The other model methodologies were not drastically changed, though many data elements were updated to improve the accuracy of these models. Note that components in the Public Use of Gasoline Model were not updated in 2008. A major challenge in updating estimation methods applied by the public-use model is that they would have to rely on significant new data collection efforts. In addition, due to resource limitation, several components of the models (both off-highway and public-us models) that utilized regression modeling approaches were not recalibrated under the 2008 study. An investigation of the Environmental Protection Agency's NONROAD2005 model was also carried out under the 2008 model update. Results generated from the NONROAD2005 model were analyzed, examined, and compared, to the extent that is possible on the overall totals, to the current FHWA estimates. Because NONROAD2005 model was designed for emission estimation purposes (i.e., not for measuring fuel consumption), it covers different equipment populations from those the FHWA models were based on. Thus, a direct comparison generally was not possible in most sectors. As a result, NONROAD2005 data were not used in the 2008 update of the FHWA off-highway models. The quality of fuel use estimates directly affect the data quality in many tables published in the Highway Statistics. Although updates have been made to the Off-Highway Gasoline Use Model and the Public Use Gasoline Model, some challenges remain due to aging model equations and discontinuation of data sources.

  7. Human Factors Engineering Program Review Model (NUREG-0711)Revision 3: Update Methodology and Key Revisions

    SciTech Connect (OSTI)

    OHara J. M.; Higgins, J.; Fleger, S.

    2012-07-22

    The U.S. Nuclear Regulatory Commission (NRC) reviews the human factors engineering (HFE) programs of applicants for nuclear power plant construction permits, operating licenses, standard design certifications, and combined operating licenses. The purpose of these safety reviews is to help ensure that personnel performance and reliability are appropriately supported. Detailed design review procedures and guidance for the evaluations is provided in three key documents: the Standard Review Plan (NUREG-0800), the HFE Program Review Model (NUREG-0711), and the Human-System Interface Design Review Guidelines (NUREG-0700). These documents were last revised in 2007, 2004 and 2002, respectively. The NRC is committed to the periodic update and improvement of the guidance to ensure that it remains a state-of-the-art design evaluation tool. To this end, the NRC is updating its guidance to stay current with recent research on human performance, advances in HFE methods and tools, and new technology being employed in plant and control room design. NUREG-0711 is the first document to be addressed. We present the methodology used to update NUREG-0711 and summarize the main changes made. Finally, we discuss the current status of the update program and the future plans.

  8. Critical Updates to the Hydrogen Analysis Production Model (H2A v3)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Critical Updates to the Hydrogen Analysis Production Model (H2A v3) Darlene Steward NREL Thursday, February 9, 2012 3:00 PM - 4:30 PM EST Darlene.steward@nrel.gov (303) 275 3837 NREL/PR-5600-54276 NATIONAL RENEWABLE ENERGY LABORATORY Outline 2 Introduction - Sara Dillich Overview of the H2A Model H2A Version 3 Changes Case Study Walkthrough Resources 1 2 3 4 NATIONAL RENEWABLE ENERGY LABORATORY Outline 3 Introduction - Sara Dillich Overview of the H2A Model H2A Version 3 Changes Case Study

  9. Process integrated modelling for steelmaking Life Cycle Inventory analysis

    SciTech Connect (OSTI)

    Iosif, Ana-Maria Hanrot, Francois Ablitzer, Denis

    2008-10-15

    During recent years, strict environmental regulations have been implemented by governments for the steelmaking industry in order to reduce their environmental impact. In the frame of the ULCOS project, we have developed a new methodological framework which combines the process integrated modelling approach with Life Cycle Assessment (LCA) method in order to carry out the Life Cycle Inventory of steelmaking. In the current paper, this new concept has been applied to the sinter plant which is the most polluting steelmaking process. It has been shown that this approach is a powerful tool to make the collection of data easier, to save time and to provide reliable information concerning the environmental diagnostic of the steelmaking processes.

  10. Webinar: Critical Updates to the Hydrogen Analysis Production Model (H2A

    Broader source: Energy.gov (indexed) [DOE]

    v3) | Department of Energy Critical Updates to the Hydrogen Analysis Production Model (H2A v3)," originally presented on February 8, 2012. In addition to this text version of the audio, you can access the presentation slides. Darlene Steward: So I have a little presentation here. The real focus of this is to kind of walk folks through the model with the goal of really helping you understand how to use it. [Next Slide] So the outline...Sara has already given an introduction, so we're

  11. Hysteresis cycle in a turbulent, spherically bounded MHD dynamo model

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hysteresis cycle in a turbulent, spherically bounded MHD dynamo model This article has been downloaded from IOPscience. Please scroll down to see the full text article. 2009 New J. Phys. 11 013027 (http://iopscience.iop.org/1367-2630/11/1/013027) Download details: IP Address: 128.104.165.161 The article was downloaded on 14/12/2011 at 21:42 Please note that terms and conditions apply. View the table of contents for this issue, or go to the journal homepage for more Home Search Collections

  12. NEAMS Update

    Office of Environmental Management (EM)

    July - September 2014 Nuclear Energy ANL/NEAMS-14/4 Overview } } BISON version 1.1 was released in September, and the BISON Assessment Report was updated. } } BISON was given a better capability for modelling hydrogen behavior in Zircaloy cladding. } } A sensitivity analysis of the gap heat transfer model for UO 2 fuel at high burnup was completed. } } The microstructure-based UO 2 fracture model was improved by using the fission gas bubble density at grain boundaries to inform the fracture

  13. Model Predictive Control of Integrated Gasification Combined Cycle Power Plants

    SciTech Connect (OSTI)

    B. Wayne Bequette; Priyadarshi Mahapatra

    2010-08-31

    The primary project objectives were to understand how the process design of an integrated gasification combined cycle (IGCC) power plant affects the dynamic operability and controllability of the process. Steady-state and dynamic simulation models were developed to predict the process behavior during typical transients that occur in plant operation. Advanced control strategies were developed to improve the ability of the process to follow changes in the power load demand, and to improve performance during transitions between power levels. Another objective of the proposed work was to educate graduate and undergraduate students in the application of process systems and control to coal technology. Educational materials were developed for use in engineering courses to further broaden this exposure to many students. ASPENTECH software was used to perform steady-state and dynamic simulations of an IGCC power plant. Linear systems analysis techniques were used to assess the steady-state and dynamic operability of the power plant under various plant operating conditions. Model predictive control (MPC) strategies were developed to improve the dynamic operation of the power plants. MATLAB and SIMULINK software were used for systems analysis and control system design, and the SIMULINK functionality in ASPEN DYNAMICS was used to test the control strategies on the simulated process. Project funds were used to support a Ph.D. student to receive education and training in coal technology and the application of modeling and simulation techniques.

  14. Response Surface Energy Modeling of an Electric Vehicle over a Reduced Composite Drive Cycle

    SciTech Connect (OSTI)

    Jehlik, Forrest; LaClair, Tim J

    2014-01-01

    Response surface methodology (RSM) techniques were applied to develop a predictive model of electric vehicle (EV) energy consumption over the Environmental Protection Agency's (EPA) standardized drive cycles. The model is based on measurements from a synthetic composite drive cycle. The synthetic drive cycle is a minimized statistical composite of the standardized urban (UDDS), highway (HWFET), and US06 cycles. The composite synthetic drive cycle is 20 minutes in length thereby reducing testing time of the three standard EPA cycles by over 55%. Vehicle speed and acceleration were used as model inputs for a third order least squared regression model predicting vehicle battery power output as a function of the drive cycle. The approach reduced three cycles and 46 minutes of drive time to a single test of 20 minutes. Application of response surface modeling to the synthetic drive cycle is shown to predict energy consumption of the three EPA cycles within 2.6% of the actual measured values. Additionally, the response model may be used to predict energy consumption of any cycle within the speed/acceleration envelope of the synthetic cycle. This technique results in reducing test time, which additionally provides a model that may be used to expand the analysis and understanding of the vehicle under consideration.

  15. GREET Model Expanded to Better Address Biofuel Life-Cycle Analysis Research

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Questions | Department of Energy GREET Model Expanded to Better Address Biofuel Life-Cycle Analysis Research Questions GREET Model Expanded to Better Address Biofuel Life-Cycle Analysis Research Questions November 23, 2015 - 2:57pm Addthis GREET Model Expanded to Better Address Biofuel Life-Cycle Analysis Research Questions The Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model allows researchers and analysts to fully evaluate the energy and emission

  16. Organic carbon cycling in landfills: Model for a continuum approach

    SciTech Connect (OSTI)

    Bogner, J.; Lagerkvist, A.

    1997-09-01

    Organic carbon cycling in landfills can be addressed through a continuum model where the end-points are conventional anaerobic digestion of organic waste (short-term analogue) and geologic burial of organic material (long-term analogue). Major variables influencing status include moisture state, temperature, organic carbon loading, nutrient status, and isolation from the surrounding environment. Bioreactor landfills which are engineered for rapid decomposition approach (but cannot fully attain) the anaerobic digester end-point and incur higher unit costs because of their high degree of environmental isolation and control. At the other extreme, uncontrolled land disposal of organic waste materials is similar to geologic burial where organic carbon may be aerobically recycled to atmospheric CO{sub 2}, anaerobically converted to CH{sub 4} and CO{sub 2} during early diagenesis, or maintained as intermediate or recalcitrant forms into geologic time (> 1,000 years) for transformations via kerogen pathways. A family of improved landfill models are needed at several scales (molecular to landscape) which realistically address landfill processes and can be validated with field data.

  17. Advanced Test Reactor Core Modeling Update Project Annual Report for Fiscal Year 2011

    SciTech Connect (OSTI)

    David W. Nigg; Devin A. Steuhm

    2011-09-01

    Legacy computational reactor physics software tools and protocols currently used for support of Advanced Test Reactor (ATR) core fuel management and safety assurance and, to some extent, experiment management are obsolete, inconsistent with the state of modern nuclear engineering practice, and are becoming increasingly difficult to properly verify and validate (V&V). Furthermore, the legacy staff knowledge required for application of these tools and protocols from the 1960s and 1970s is rapidly being lost due to staff turnover and retirements. In 2009 the Idaho National Laboratory (INL) initiated a focused effort to address this situation through the introduction of modern high-fidelity computational software and protocols, with appropriate V&V, within the next 3-4 years via the ATR Core Modeling and Simulation and V&V Update (or 'Core Modeling Update') Project. This aggressive computational and experimental campaign will have a broad strategic impact on the operation of the ATR, both in terms of improved computational efficiency and accuracy for support of ongoing DOE programs as well as in terms of national and international recognition of the ATR National Scientific User Facility (NSUF). The ATR Core Modeling Update Project, targeted for full implementation in phase with the anticipated ATR Core Internals Changeout (CIC) in the 2014 time frame, began during the last quarter of Fiscal Year 2009, and has just completed its first full year. Key accomplishments so far have encompassed both computational as well as experimental work. A new suite of stochastic and deterministic transport theory based reactor physics codes and their supporting nuclear data libraries (SCALE, KENO-6, HELIOS, NEWT, and ATTILA) have been installed at the INL under various permanent sitewide license agreements and corresponding baseline models of the ATR and ATRC are now operational, demonstrating the basic feasibility of these code packages for their intended purpose. Furthermore, a capability for rigorous sensitivity analysis and uncertainty quantification based on the TSUNAMI system is being implemented and initial computational results have been obtained. This capability will have many applications in 2011 and beyond as a tool for understanding the margins of uncertainty in the new models as well as for validation experiment design and interpretation. Finally we note that although full implementation of the new computational models and protocols will extend over a period 3-4 years as noted above, interim applications in the much nearer term have already been demonstrated. In particular, these demonstrations included an analysis that was useful for understanding the cause of some issues in December 2009 that were triggered by a larger than acceptable discrepancy between the measured excess core reactivity and a calculated value that was based on the legacy computational methods. As the Modeling Update project proceeds we anticipate further such interim, informal, applications in parallel with formal qualification of the system under the applicable INL Quality Assurance procedures and standards.

  18. Development and applications of GREET 2.7 -- The Transportation Vehicle-CycleModel.

    SciTech Connect (OSTI)

    Burnham, A.; Wang, M. Q.; Wu, Y.

    2006-12-20

    Argonne National Laboratory has developed a vehicle-cycle module for the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model. The fuel-cycle GREET model has been cited extensively and contains data on fuel cycles and vehicle operations. The vehicle-cycle model evaluates the energy and emission effects associated with vehicle material recovery and production, vehicle component fabrication, vehicle assembly, and vehicle disposal/recycling. With the addition of the vehicle-cycle module, the GREET model now provides a comprehensive, lifecycle-based approach to compare the energy use and emissions of conventional and advanced vehicle technologies (e.g., hybrid electric vehicles and fuel cell vehicles). This report details the development and application of the GREET 2.7 model. The current model includes six vehicles--a conventional material and a lightweight material version of a mid-size passenger car with the following powertrain systems: internal combustion engine, internal combustion engine with hybrid configuration, and fuel cell with hybrid configuration. The model calculates the energy use and emissions that are required for vehicle component production; battery production; fluid production and use; and vehicle assembly, disposal, and recycling. This report also presents vehicle-cycle modeling results. In order to put these results in a broad perspective, the fuel-cycle model (GREET 1.7) was used in conjunction with the vehicle-cycle model (GREET 2.7) to estimate total energy-cycle results.

  19. An update on modeling land-ice/ocean interactions in CESM

    SciTech Connect (OSTI)

    Asay-davis, Xylar

    2011-01-24

    This talk is an update on ongoing land-ice/ocean coupling work within the Community Earth System Model (CESM). The coupling method is designed to allow simulation of a fully dynamic ice/ocean interface, while requiring minimal modification to the existing ocean model (the Parallel Ocean Program, POP). The method makes use of an immersed boundary method (IBM) to represent the geometry of the ice-ocean interface without requiring that the computational grid be modified in time. We show many of the remaining development challenges that need to be addressed in order to perform global, century long climate runs with fully coupled ocean and ice sheet models. These challenges include moving to a new grid where the computational pole is no longer at the true south pole and several changes to the coupler (the software tool used to communicate between model components) to allow the boundary between land and ocean to vary in time. We discuss benefits for ice/ocean coupling that would be gained from longer-term ocean model development to allow for natural salt fluxes (which conserve both water and salt mass, rather than water volume).

  20. Short-Term Energy Outlook Model Documentation: Macro Bridge Procedure to Update Regional Macroeconomic Forecasts with National Macroeconomic Forecasts

    Reports and Publications (EIA)

    2010-01-01

    The Regional Short-Term Energy Model (RSTEM) uses macroeconomic variables such as income, employment, industrial production and consumer prices at both the national and regional1 levels as explanatory variables in the generation of the Short-Term Energy Outlook (STEO). This documentation explains how national macroeconomic forecasts are used to update regional macroeconomic forecasts through the RSTEM Macro Bridge procedure.

  1. Modeling Heavy/Medium-Duty Fuel Consumption Based on Drive Cycle Properties

    SciTech Connect (OSTI)

    Wang, Lijuan; Duran, Adam; Gonder, Jeffrey; Kelly, Kenneth

    2015-10-13

    This paper presents multiple methods for predicting heavy/medium-duty vehicle fuel consumption based on driving cycle information. A polynomial model, a black box artificial neural net model, a polynomial neural network model, and a multivariate adaptive regression splines (MARS) model were developed and verified using data collected from chassis testing performed on a parcel delivery diesel truck operating over the Heavy Heavy-Duty Diesel Truck (HHDDT), City Suburban Heavy Vehicle Cycle (CSHVC), New York Composite Cycle (NYCC), and hydraulic hybrid vehicle (HHV) drive cycles. Each model was trained using one of four drive cycles as a training cycle and the other three as testing cycles. By comparing the training and testing results, a representative training cycle was chosen and used to further tune each method. HHDDT as the training cycle gave the best predictive results, because HHDDT contains a variety of drive characteristics, such as high speed, acceleration, idling, and deceleration. Among the four model approaches, MARS gave the best predictive performance, with an average absolute percent error of -1.84% over the four chassis dynamometer drive cycles. To further evaluate the accuracy of the predictive models, the approaches were first applied to real-world data. MARS outperformed the other three approaches, providing an average absolute percent error of -2.2% of four real-world road segments. The MARS model performance was then compared to HHDDT, CSHVC, NYCC, and HHV drive cycles with the performance from Future Automotive System Technology Simulator (FASTSim). The results indicated that the MARS method achieved a comparative predictive performance with FASTSim.

  2. Advanced Test Reactor Core Modeling Update Project Annual Report for Fiscal Year 2013

    SciTech Connect (OSTI)

    David W. Nigg

    2013-09-01

    Legacy computational reactor physics software tools and protocols currently used for support of Advanced Test Reactor (ATR) core fuel management and safety assurance, and to some extent, experiment management, are inconsistent with the state of modern nuclear engineering practice, and are difficult, if not impossible, to verify and validate (V&V) according to modern standards. Furthermore, the legacy staff knowledge required for effective application of these tools and protocols from the 1960s and 1970s is rapidly being lost due to staff turnover and retirements. In late 2009, the Idaho National Laboratory (INL) initiated a focused effort, the ATR Core Modeling Update Project, to address this situation through the introduction of modern high-fidelity computational software and protocols. This aggressive computational and experimental campaign will have a broad strategic impact on the operation of the ATR, both in terms of improved computational efficiency and accuracy for support of ongoing DOE programs as well as in terms of national and international recognition of the ATR National Scientific User Facility (NSUF).

  3. Modelling aging effects on a thermal cycling absorption process column

    SciTech Connect (OSTI)

    Laquerbe, C.; Contreras, S.; Demoment, J.

    2008-07-15

    Palladium coated on alumina is used in hydrogen separation systems operated at CEA/Valduc, and more particularly in Thermal Cycling Absorption Process columns. With such materials, tritium decay is known to induce aging effects which have direct side effects on hydrogen isotopes absorption isotherms. Furthermore in a TCAP column, aging occurs in an heterogeneous way. The possible impacts of these intrinsic material evolutions on the separation performances are investigated here through a numerical approach. (authors)

  4. Parabolic Trough Collector Cost Update for the System Advisor Model (SAM)

    SciTech Connect (OSTI)

    Kurup, Parthiv; Turchi, Craig S.

    2015-11-01

    This report updates the baseline cost for parabolic trough solar fields in the United States within NREL's System Advisor Model (SAM). SAM, available at no cost at https://sam.nrel.gov/, is a performance and financial model designed to facilitate decision making for people involved in the renewable energy industry. SAM is the primary tool used by NREL and the U.S. Department of Energy (DOE) for estimating the performance and cost of concentrating solar power (CSP) technologies and projects. The study performed a bottom-up build and cost estimate for two state-of-the-art parabolic trough designs -- the SkyTrough and the Ultimate Trough. The SkyTrough analysis estimated the potential installed cost for a solar field of 1500 SCAs as $170/m2 +/- $6/m2. The investigation found that SkyTrough installed costs were sensitive to factors such as raw aluminum alloy cost and production volume. For example, in the case of the SkyTrough, the installed cost would rise to nearly $210/m2 if the aluminum alloy cost was $1.70/lb instead of $1.03/lb. Accordingly, one must be aware of fluctuations in the relevant commodities markets to track system cost over time. The estimated installed cost for the Ultimate Trough was only slightly higher at $178/m2, which includes an assembly facility of $11.6 million amortized over the required production volume. Considering the size and overall cost of a 700 SCA Ultimate Trough solar field, two parallel production lines in a fully covered assembly facility, each with the specific torque box, module and mirror jigs, would be justified for a full CSP plant.

  5. Fuel-Cycle Energy and Emissions Analysis with the GREET Model | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Fuel-Cycle Energy and Emissions Analysis with the GREET Model Fuel-Cycle Energy and Emissions Analysis with the GREET Model 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ftp_02_wang.pdf More Documents & Publications GREET Development and Applications for Life-Cycle Analysis of Vehicle/Fuel Systems Well-to-Wheels Analysis of Advanced Fuel/Vehicle Systems - A North American

  6. Cassini Spacecraft Uncertainty Analysis Data and Methodology Review and Update/Volume 1: Updated Parameter Uncertainty Models for the Consequence Analysis

    SciTech Connect (OSTI)

    WHEELER, TIMOTHY A.; WYSS, GREGORY D.; HARPER, FREDERICK T.

    2000-11-01

    Uncertainty distributions for specific parameters of the Cassini General Purpose Heat Source Radioisotope Thermoelectric Generator (GPHS-RTG) Final Safety Analysis Report consequence risk analysis were revised and updated. The revisions and updates were done for all consequence parameters for which relevant information exists from the joint project on Probabilistic Accident Consequence Uncertainty Analysis by the United States Nuclear Regulatory Commission and the Commission of European Communities.

  7. Updated U.S. Geothermal Supply Characterization and Representation for Market Penetration Model Input

    SciTech Connect (OSTI)

    Augustine, C.

    2011-10-01

    The U.S. Department of Energy (DOE) Geothermal Technologies Program (GTP) tasked the National Renewable Energy Laboratory (NREL) with conducting the annual geothermal supply curve update. This report documents the approach taken to identify geothermal resources, determine the electrical producing potential of these resources, and estimate the levelized cost of electricity (LCOE), capital costs, and operating and maintenance costs from these geothermal resources at present and future timeframes under various GTP funding levels. Finally, this report discusses the resulting supply curve representation and how improvements can be made to future supply curve updates.

  8. Multi-century Changes to Global Climate and Carbon Cycle: Results from a Coupled Climate and Carbon Cycle Model

    SciTech Connect (OSTI)

    Bala, G; Caldeira, K; Mirin, A; Wickett, M; Delire, C

    2005-02-17

    In this paper, we use a coupled climate and carbon cycle model to investigate the global climate and carbon cycle changes out to year 2300 that would occur if CO{sub 2} emissions from all the currently estimated fossil fuel resources were released to the atmosphere. By year 2300, the global climate warms by about 8 K and atmospheric CO{sub 2} reaches 1423 ppmv. The warming is higher than anticipated because the sensitivity to radiative forcing increases as the simulation progresses. In our simulation, the rate of emissions peak at over 30 PgC yr{sup -1} early in the 22nd century. Even at year 2300, nearly 50% of cumulative emissions remain in the atmosphere. In our simulations both soils and living biomass are net carbon sinks throughout the simulation. Despite having relatively low climate sensitivity and strong carbon uptake by the land biosphere, our model projections suggest severe long-term consequences for global climate if all the fossil-fuel carbon is ultimately released to the atmosphere.

  9. Thinking outside the channel: Modeling nitrogen cycling in networked river ecosystems

    SciTech Connect (OSTI)

    Helton, Ashley; Poole, Geoffrey C.; Meyer, Judy; Wollheim, Wilfred; Peterson, Bruce; Mulholland, Patrick J; Bernhardt, Emily; Stanford, Jack; Arango, Clay; Ashkenas, Linda; Cooper, Lee W; Dodds, Walter; Gregory, Stanley; Hall, Robert; Hamilton, Stephen; Johnson, Sherri; McDowell, William; Potter, Jody; Tank, Jennifer; Thomas, Suzanne; Valett, H. Maurice; Webster, Jackson; Zeglin, Lydia

    2011-01-01

    Agricultural and urban development alters nitrogen and other biogeochemical cycles in rivers worldwide. Because such biogeochemical processes cannot be measured empirically across whole river networks, simulation models are critical tools for understanding river-network biogeochemistry. However, limitations inherent in current models restrict our ability to simulate biogeochemical dynamics among diverse river networks. We illustrate these limitations using a river-network model to scale up in situ measures of nitrogen cycling in eight catchments spanning various geophysical and land-use conditions. Our model results provide evidence that catchment characteristics typically excluded from models may control river-network biogeochemistry. Based on our findings, we identify important components of a revised strategy for simulating biogeochemical dynamics in river networks, including approaches to modeling terrestrial-aquatic linkages, hydrologic exchanges between the channel, floodplain/riparian complex, and subsurface waters, and interactions between coupled biogeochemical cycles.

  10. Modeling long-term CO2 storage, sequestration and cycling

    SciTech Connect (OSTI)

    Bacon, Diana H.

    2013-11-11

    The application of numerical and analytical models to the problem of storage, sequestration and migration of carbon dioxide in geologic formations is discussed. A review of numerical and analytical models that have been applied to CO2 sequestration are presented, as well as a description of frameworks for risk analysis. Application of models to various issues related to carbon sequestration are discussed, including trapping mechanisms, density convection mixing, impurities in the CO2 stream, changes in formation porosity and permeability, the risk of vertical leakage, and the impacts on groundwater resources if leakage does occur. A discussion of the development and application of site-specific models first addresses the estimation of model parameters and the use of natural analogues to inform the development of CO2 sequestration models, and then surveys modeling that has been done at two commercial-scale CO2 sequestration sites, Sleipner and In Salah, along with a pilot-scale injection sites used to study CO2 sequestration in saline aquifers (Frio) and an experimental site designed to test monitoring of CO2 leakage in the vadose zone (ZERT Release Facility).

  11. NEUP Update - January 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    NEUP Update - January 2014 NEUP Update - January 2014 The newsletter features a recent meeting between Dr. Pete Lyons and current fellowship awardees, a highlight of Rita Patel, a FY 2012 fellowship recipient, and an update on a Fuel Cycle project studying high temperature sorption behaviors, led by Brian Powell at Clemson, along with other program updates. PDF icon January_2014_NEUPdate.pdf More Documents & Publications Investing in the next generation: The Office of Nuclear Energy Issues

  12. GREET 1.0 -- Transportation fuel cycles model: Methodology and use

    SciTech Connect (OSTI)

    Wang, M.Q.

    1996-06-01

    This report documents the development and use of the Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model. The model, developed in a spreadsheet format, estimates the full fuel-cycle emissions and energy use associated with various transportation fuels for light-duty vehicles. The model calculates fuel-cycle emissions of five criteria pollutants (volatile organic compounds, Co, NOx, SOx, and particulate matter measuring 10 microns or less) and three greenhouse gases (carbon dioxide, methane, and nitrous oxide). The model also calculates the total fuel-cycle energy consumption, fossil fuel consumption, and petroleum consumption using various transportation fuels. The GREET model includes 17 fuel cycles: petroleum to conventional gasoline, reformulated gasoline, clean diesel, liquefied petroleum gas, and electricity via residual oil; natural gas to compressed natural gas, liquefied petroleum gas, methanol, hydrogen, and electricity; coal to electricity; uranium to electricity; renewable energy (hydropower, solar energy, and wind) to electricity; corn, woody biomass, and herbaceous biomass to ethanol; and landfill gases to methanol. This report presents fuel-cycle energy use and emissions for a 2000 model-year car powered by each of the fuels that are produced from the primary energy sources considered in the study.

  13. Microsoft Word - UPDATE 5 - Units 1,2 + base load unit.doc

    Office of Environmental Management (EM)

    5 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant Modeling Cycling Units 1, 2 plus One Baseload Unit ENSR Corporation January 6, 2006 Document Number 10350-002-420 (Update 5) January, 2006 1-1 1.0 INTRODUCTION This report describes dispersion modeling performed for simultaneous operation of one baseload unit and two cycling units at Mirant's Potomac River Generating Station (PRGS). This mode of operation is also referred to as Option A in Mirant Potomac

  14. Modeling Lithium Movement over Multiple Cycles in a Lithium-Metal Battery

    SciTech Connect (OSTI)

    Ferrese, A; Newman, J

    2014-04-11

    This paper builds on the work by Ferrese et al. [J. Electrochem., 159, A1615 (2012)], where a model of a lithium-metal battery with a LiyCoO2 positive electrode was created in order to predict the movement of lithium in the negative electrode along the negative electrode/separator interface during cell cycling. In this paper, the model is expanded to study the movement of lithium along the lithium-metal anode over multiple cycles. From this model, it is found that when a low percentage of lithium at the negative electrode is utilized, the movement of lithium along the negative electrode/separator interface reaches a quasi steady state after multiple cycles. This steady state is affected by the slope of the open-circuit-potential function in the positive electrode, the rate of charge and discharge, the depth of discharge, and the length of the rest periods. However, when a high percent of the lithium at the negative electrode is utilized during cycling, the movement does not reach a steady state and pinching can occur, where the lithium nearest the negative tab becomes progressively thinner after cycling. This is another nonlinearity that leads to a progression of the movement of lithium over multiple cycles. (C) 2014 The Electrochemical Society.

  15. * Systems update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Systems update * Mendel Move update * Cori update * Edison update * NUG annual meeting * Queues and System Usage * User Survey results * Data movement and networks mini-tutorial * Globus at NERSC * Cori, Edison and all file systems are now in operation at Wang Hall * HPSS remains in Oakland, connected to Wang Hall via a 400 GB/sec network link * A cluster servicing JGI & PDSF is shut down and in process of move from OSF to Wang Hall * No overall Genepool or PDSF downtime due to move 5 - 6 -

  16. Propane update

    U.S. Energy Information Administration (EIA) Indexed Site

    update March 23,2016 | Washington, DC (Inventory data as of 31816; residential heating ... Source: EIA, Weekly Petroleum Status Report, data through March 18, 2016 *propane...

  17. Nuclear fuel cycle system simulation tool based on high-fidelity component modeling

    SciTech Connect (OSTI)

    Ames, David E.

    2014-02-01

    The DOE is currently directing extensive research into developing fuel cycle technologies that will enable the safe, secure, economic, and sustainable expansion of nuclear energy. The task is formidable considering the numerous fuel cycle options, the large dynamic systems that each represent, and the necessity to accurately predict their behavior. The path to successfully develop and implement an advanced fuel cycle is highly dependent on the modeling capabilities and simulation tools available for performing useful relevant analysis to assist stakeholders in decision making. Therefore a high-fidelity fuel cycle simulation tool that performs system analysis, including uncertainty quantification and optimization was developed. The resulting simulator also includes the capability to calculate environmental impact measures for individual components and the system. An integrated system method and analysis approach that provides consistent and comprehensive evaluations of advanced fuel cycles was developed. A general approach was utilized allowing for the system to be modified in order to provide analysis for other systems with similar attributes. By utilizing this approach, the framework for simulating many different fuel cycle options is provided. Two example fuel cycle configurations were developed to take advantage of used fuel recycling and transmutation capabilities in waste management scenarios leading to minimized waste inventories.

  18. A dynamic process model of a natural gas combined cycle -- Model development with startup and shutdown simulations

    SciTech Connect (OSTI)

    Liese, Eric; Zitney, Stephen E.

    2013-01-01

    Research in dynamic process simulation for integrated gasification combined cycles (IGCC) with carbon capture has been ongoing at the National Energy Technology Laboratory (NETL), culminating in a full operator training simulator (OTS) and immersive training simulator (ITS) for use in both operator training and research. A derivative work of the IGCC dynamic simulator has been a modification of the combined cycle section to more closely represent a typical natural gas fired combined cycle (NGCC). This paper describes the NGCC dynamic process model and highlights some of the simulator’s current capabilities through a particular startup and shutdown scenario.

  19. Theory, modeling and evaluations for the fuel cycle (Conference) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect Theory, modeling and evaluations for the fuel cycle Citation Details In-Document Search Title: Theory, modeling and evaluations for the fuel cycle Authors: Talou, Patrick [1] + Show Author Affiliations Los Alamos National Laboratory Publication Date: 2011-02-03 OSTI Identifier: 1051591 Report Number(s): LA-UR-11-00844; LA-UR-11-844 DOE Contract Number: AC52-06NA25396 Resource Type: Conference Resource Relation: Conference: Advanced Reactor Concepts Meeting ; February 2, 2011 ; Oak

  20. An Update of the Analytical Groundwater Modeling to Assess Water Resource Impacts at the Afton Solar Energy Zone

    SciTech Connect (OSTI)

    Quinn, John J.; Greer, Christopher B.; Carr, Adrianne E.

    2014-10-01

    The purpose of this study is to update a one-dimensional analytical groundwater flow model to examine the influence of potential groundwater withdrawal in support of utility-scale solar energy development at the Afton Solar Energy Zone (SEZ) as a part of the Bureau of Land Management’s (BLM’s) Solar Energy Program. This report describes the modeling for assessing the drawdown associated with SEZ groundwater pumping rates for a 20-year duration considering three categories of water demand (high, medium, and low) based on technology-specific considerations. The 2012 modeling effort published in the Final Programmatic Environmental Impact Statement for Solar Energy Development in Six Southwestern States (Solar PEIS; BLM and DOE 2012) has been refined based on additional information described below in an expanded hydrogeologic discussion.

  1. Modeling Energy Recovery Using Thermoelectric Conversion Integrated with an Organic Rankine Bottoming Cycle

    SciTech Connect (OSTI)

    Miller, Erik W.; Hendricks, Terry J.; Peterson, Richard B.

    2009-07-01

    Hot engine exhaust represents a resource that is often rejected to the environment without further utilization. This resource is most prevalent in the transportation sector, but stationary engine-generator systems also typically do not utilize this resource. Engine exhaust is a source of high grade thermal energy that can potentially be utilized by various approaches to produce electricity or to drive heating and cooling systems. This paper describes a model system that employs thermoelectric conversion as a topping cycle integrated with an organic Rankine bottoming cycle for waste heat utilization. This approach is being developed to fully utilize the thermal energy contained in hot exhaust streams. The model is composed of a high temperature heat exchanger which extracts thermal energy for driving the thermoelectric conversion elements. However, substantial sensible heat remains in the exhaust stream after emerging from the heat exchanger. The model incorporates a closely integrated bottoming cycle to utilize this remaining thermal energy in the exhaust stream. The model has many interacting parameters that define combined system quantities such as overall output power, efficiency, and total energy utilization factors. In addition, the model identifies a maximum power operating point for the system. That is, the model can identify the optimal amount of heat to remove from the exhaust flow to run through the thermoelectric elements. Removing too much or too little heat from the exhaust stream in this stage will reduce overall cycle performance. The model has been developed such that heat exchanger UAh values, thermal resistances, ZT values, and multiple thermoelectric elements can be investigated in the context of system operation. The model also has the ability to simultaneously determine the effect of each cycle design parameter on the performance of the overall system, thus giving the ability to utilize as much waste heat as possible. Key analysis results are presented showing the impact of critical design parameters on power output, system performance and inter-relationships between design parameters in governing performance.

  2. Global Biogeochemistry Models and Global Carbon Cycle Research at Lawrence Livermore National Laboratory

    SciTech Connect (OSTI)

    Covey, C; Caldeira, K; Guilderson, T; Cameron-Smith, P; Govindasamy, B; Swanston, C; Wickett, M; Mirin, A; Bader, D

    2005-05-27

    The climate modeling community has long envisioned an evolution from physical climate models to ''earth system'' models that include the effects of biology and chemistry, particularly those processes related to the global carbon cycle. The widely reproduced Box 3, Figure 1 from the 2001 IPCC Scientific Assessment schematically describes that evolution. The community generally accepts the premise that understanding and predicting global and regional climate change requires the inclusion of carbon cycle processes in models to fully simulate the feedbacks between the climate system and the carbon cycle. Moreover, models will ultimately be employed to predict atmospheric concentrations of CO{sub 2} and other greenhouse gases as a function of anthropogenic and natural processes, such as industrial emissions, terrestrial carbon fixation, sequestration, land use patterns, etc. Nevertheless, the development of coupled climate-carbon models with demonstrable quantitative skill will require a significant amount of effort and time to understand and validate their behavior at both the process level and as integrated systems. It is important to consider objectively whether the currently proposed strategies to develop and validate earth system models are optimal, or even sufficient, and whether alternative strategies should be pursued. Carbon-climate models are going to be complex, with the carbon cycle strongly interacting with many other components. Off-line process validation will be insufficient. As was found in coupled atmosphere-ocean GCMs, feedbacks between model components can amplify small errors and uncertainties in one process to produce large biases in the simulated climate. The persistent tropical western Pacific Ocean ''double ITCZ'' and upper troposphere ''cold pole'' problems are examples. Finding and fixing similar types of problems in coupled carbon-climate models especially will be difficult, given the lack of observations required for diagnosis and validation of biogeochemical processes.

  3. Modeling and Simulations for the High Flux Isotope Reactor Cycle 400

    SciTech Connect (OSTI)

    Ilas, Germina; Chandler, David; Ade, Brian J; Sunny, Eva E; Betzler, Benjamin R; Pinkston, Daniel

    2015-03-01

    A concerted effort over the past few years has been focused on enhancing the core model for the High Flux Isotope Reactor (HFIR), as part of a comprehensive study for HFIR conversion from high-enriched uranium (HEU) to low-enriched uranium (LEU) fuel. At this time, the core model used to perform analyses in support of HFIR operation is an MCNP model for the beginning of Cycle 400, which was documented in detail in a 2005 technical report. A HFIR core depletion model that is based on current state-of-the-art methods and nuclear data was needed to serve as reference for the design of an LEU fuel for HFIR. The recent enhancements in modeling and simulations for HFIR that are discussed in the present report include: (1) revision of the 2005 MCNP model for the beginning of Cycle 400 to improve the modeling data and assumptions as necessary based on appropriate primary reference sources HFIR drawings and reports; (2) improvement of the fuel region model, including an explicit representation for the involute fuel plate geometry that is characteristic to HFIR fuel; and (3) revision of the Monte Carlo-based depletion model for HFIR in use since 2009 but never documented in detail, with the development of a new depletion model for the HFIR explicit fuel plate representation. The new HFIR models for Cycle 400 are used to determine various metrics of relevance to reactor performance and safety assessments. The calculated metrics are compared, where possible, with measurement data from preconstruction critical experiments at HFIR, data included in the current HFIR safety analysis report, and/or data from previous calculations performed with different methods or codes. The results of the analyses show that the models presented in this report provide a robust and reliable basis for HFIR analyses.

  4. Modeling the role of terrestrial ecosystems in the global carbon cycle

    SciTech Connect (OSTI)

    Emanuel, W.R.; Post, W.M.; Shugart, H.H. Jr.

    1980-01-01

    A model for the global biogeochemical cycle of carbon which includes a five-compartment submodel for circulation in terrestrial ecosystems of the world is presented. Although this terrestrial submodel divides carbon into compartments with more functional detail than previous models, the variability in carbon dynamics among ecosystem types and in different climatic zones is not adequately treated. A new model construct which specifically treats this variability by modeling the distribution of ecosystem types as a function of climate on a 0.5/sup 0/ latitude by 0.5/sup 0/ longitude scale of resolution is proposed.

  5. Washington Update

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Federal Energy Management Program Federal Utility Partnership Working Group Meeting: Washington Update Dr. Timothy Unruh October 25-26, 2011 Philadelphia, PA 2 | Federal Energy Management Program eere.energy.gov Presentation Overview  Federal Government Goals and Status  FEMP Update  UESC Program Overview and Goals  Mark Your Calendar: Spring 2012 FUPWG 3 | Federal Energy Management Program eere.energy.gov FEMP's Mission FEMP provides the services, tools, and expertise to Federal

  6. Washington Update

    Broader source: Energy.gov (indexed) [DOE]

    October 16, 2012 Federal Energy Management Program femp.energy.gov 2 Presentation Overview The Federal Buildings Personnel Training Act of 2010 Commit to Efficiency Customer Service Other FEMP Activities Update on Presidential Memo Commit to Efficiency OMB M-12-21 Federal Energy Management Program femp.energy.gov 3 The Federal Buildings Personnel Training Act of 2010 Commit to Efficiency Customer Service Other FEMP Activities Update on Presidential Memo Commit to Efficiency OMB M-12-21 Federal

  7. Variable C : N : P stoichiometry of dissolved organic matter cycling in the Community Earth System Model

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Letscher, R. T.; Moore, J. K.; Teng, Y. -C.; Primeau, F.

    2015-01-12

    Dissolved organic matter (DOM) plays an important role in the ocean's biological carbon pump by providing an advective/mixing pathway for ~ 20% of export production. DOM is known to have a stoichiometry depleted in nitrogen (N) and phosphorus (P) compared to the particulate organic matter pool, a fact that is often omitted from biogeochemical ocean general circulation models. However the variable C : N : P stoichiometry of DOM becomes important when quantifying carbon export from the upper ocean and linking the nutrient cycles of N and P with that of carbon. Here we utilize recent advances in DOM observationalmore » data coverage and offline tracer-modeling techniques to objectively constrain the variable production and remineralization rates of the DOM C : N : P pools in a simple biogeochemical-ocean model of DOM cycling. The optimized DOM cycling parameters are then incorporated within the Biogeochemical Elemental Cycling (BEC) component of the Community Earth System Model (CESM) and validated against the compilation of marine DOM observations. The optimized BEC simulation including variable DOM C : N : P cycling was found to better reproduce the observed DOM spatial gradients than simulations that used the canonical Redfield ratio. Global annual average export of dissolved organic C, N, and P below 100 m was found to be 2.28 Pg C yr-1 (143 Tmol C yr-1, 16.4 Tmol N yr-1, and 1 Tmol P yr-1, respectively, with an average export C : N : P stoichiometry of 225 : 19 : 1 for the semilabile (degradable) DOM pool. Dissolved organic carbon (DOC) export contributed ~ 25% of the combined organic C export to depths greater than 100 m.« less

  8. Variable C : N : P stoichiometry of dissolved organic matter cycling in the Community Earth System Model

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Letscher, R. T.; Moore, J. K.; Teng, Y. -C.; Primeau, F.

    2014-06-16

    Dissolved organic matter (DOM) plays an important role in the ocean's biological carbon pump by providing an advective/mixing pathway for ~ 20% of export production. DOM is known to have a stoichiometry depleted in nitrogen (N) and phosphorus (P) compared to the particulate organic matter pool, a~fact that is often omitted from biogeochemical-ocean general circulation models. However the variable C : N : P stoichiometry of DOM becomes important when quantifying carbon export from the upper ocean and linking the nutrient cycles of N and P with that of carbon. Here we utilize recent advances in DOM observational data coveragemore » and offline tracer-modeling techniques to objectively constrain the variable production and remineralization rates of the DOM C / N / P pools in a simple biogeochemical-ocean model of DOM cycling. The optimized DOM cycling parameters are then incorporated within the Biogeochemical Elemental Cycling (BEC) component of the Community Earth System Model and validated against the compilation of marine DOM observations. The optimized BEC simulation including variable DOM C : N : P cycling was found to better reproduce the observed DOM spatial gradients than simulations that used the canonical Redfield ratio. Global annual average export of dissolved organic C, N, and P below 100 m was found to be 2.28 Pg C yr-1 (143 Tmol C yr-1), 16.4 Tmol N yr-1, and 1 Tmol P yr-1, respectively with an average export C : N : P stoichiometry of 225 : 19 : 1 for the semilabile (degradable) DOM pool. DOC export contributed ~ 25% of the combined organic C export to depths greater than 100 m.« less

  9. SOLAR MAGNETIC ACTIVITY CYCLES, CORONAL POTENTIAL FIELD MODELS AND ERUPTION RATES

    SciTech Connect (OSTI)

    Petrie, G. J. D.

    2013-05-10

    We study the evolution of the observed photospheric magnetic field and the modeled global coronal magnetic field during the past 3 1/2 solar activity cycles observed since the mid-1970s. We use synoptic magnetograms and extrapolated potential-field models based on longitudinal full-disk photospheric magnetograms from the National Solar Observatory's three magnetographs at Kitt Peak, the Synoptic Optical Long-term Investigations of the Sun vector spectro-magnetograph, the spectro-magnetograph and the 512-channel magnetograph instruments, and from Stanford University's Wilcox Solar Observatory. The associated multipole field components are used to study the dominant length scales and symmetries of the coronal field. Polar field changes are found to be well correlated with active fields over most of the period studied, except between 2003 and 2006 when the active fields did not produce significant polar field changes. Of the axisymmetric multipoles, only the dipole and octupole follow the poles whereas the higher orders follow the activity cycle. All non-axisymmetric multipole strengths are well correlated with the activity cycle. The tilt of the solar dipole is therefore almost entirely due to active-region fields. The axial dipole and octupole are the largest contributors to the global field except while the polar fields are reversing. This influence of the polar fields extends to modulating eruption rates. According to the Computer Aided CME Tracking, Solar Eruptive Event Detection System, and Nobeyama radioheliograph prominence eruption catalogs, the rate of solar eruptions is found to be systematically higher for active years between 2003 and 2012 than for those between 1997 and 2002. This behavior appears to be connected with the weakness of the late-cycle 23 polar fields as suggested by Luhmann. We see evidence that the process of cycle 24 field reversal is well advanced at both poles.

  10. A model of the methane cycle, permafrost, and hydrology of the Siberian continental margin

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Archer, D.

    2014-06-03

    A two-dimensional model of a passive continental margin was adapted to the simulation of the methane cycle on Siberian continental shelf and slope, attempting to account for the impacts of glacial/interglacial cycles in sea level, alternately exposing the continental shelf to freezing conditions with deep permafrost formation during glacial times, and immersion in the ocean in interglacial times. The model is used to gauge the impact of the glacial cycles, and potential anthropogenic warming in the deep future, on the atmospheric methane emission flux, and the sensitivities of that flux to processes such as permafrost formation and terrestrial organic carbonmore » (Yedoma) deposition. Hydrological forcing drives a freshening and ventilation of pore waters in areas exposed to the atmosphere, which is not quickly reversed by invasion of seawater upon submergence, since there is no analogous saltwater pump. This hydrological pump changes the salinity enough to affect the stability of permafrost and methane hydrates on the shelf. Permafrost formation inhibits bubble transport through the sediment column, by construction in the model. The impact of permafrost on the methane budget is to replace the bubble flux by offshore groundwater flow containing dissolved methane, rather than accumulating methane for catastrophic release when the permafrost seal fails during warming. By far the largest impact of the glacial/interglacial cycles on the atmospheric methane flux is attenuation by dissolution of bubbles in the ocean when sea level is high. Methane emissions are highest during the regression (soil freezing) part of the cycle, rather than during transgression (thawing). The model-predicted methane flux to the atmosphere in response to a warming climate is small, relative to the global methane production rate, because of the ongoing flooding of the continental shelf. A slight increase due to warming could be completely counteracted by sea level rise on geologic time scales, decreasing the efficiency of bubble transit through the water column. The methane cycle on the shelf responds to climate change on a long time constant of thousands of years, because hydrate is excluded thermodynamically from the permafrost zone by water limitation, leaving the hydrate stability zone at least 300 m below the sediment surface.« less

  11. Energy Storage Systems 2010 Update Conference Presentations ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    New Vanadium Redox Flow Battery Using Mixed Acid Electrolytes - Liyu Li, PNNL.pdf PDF icon ESS 2010 Update Conference - Low Cost Long Cycle Life Li-ion Batteries for Stationary ...

  12. Update on Small Modular Reactors Dynamics System Modeling Tool -- Molten Salt Cooled Architecture

    SciTech Connect (OSTI)

    Hale, Richard Edward; Cetiner, Sacit M.; Fugate, David L.; Qualls, A L.; Borum, Robert C.; Chaleff, Ethan S.; Rogerson, Doug W.; Batteh, John J.; Tiller, Michael M.

    2014-08-01

    The Small Modular Reactor (SMR) Dynamic System Modeling Tool project is in the third year of development. The project is designed to support collaborative modeling and study of various advanced SMR (non-light water cooled) concepts, including the use of multiple coupled reactors at a single site. The objective of the project is to provide a common simulation environment and baseline modeling resources to facilitate rapid development of dynamic advanced reactor SMR models, ensure consistency among research products within the Instrumentation, Controls, and Human-Machine Interface (ICHMI) technical area, and leverage cross-cutting capabilities while minimizing duplication of effort. The combined simulation environment and suite of models are identified as the Modular Dynamic SIMulation (MoDSIM) tool. The critical elements of this effort include (1) defining a standardized, common simulation environment that can be applied throughout the program, (2) developing a library of baseline component modules that can be assembled into full plant models using existing geometry and thermal-hydraulic data, (3) defining modeling conventions for interconnecting component models, and (4) establishing user interfaces and support tools to facilitate simulation development (i.e., configuration and parameterization), execution, and results display and capture.

  13. Task Group 9 Update (Presentation)

    SciTech Connect (OSTI)

    Bosco, N.

    2014-04-01

    This presentation is a brief update of IEC TC82 QA Task Force, Group 9. Presented is an outline of the recently submitted New Work Item Proposal (NWIP) for a Comparative Thermal Cycling Test for CPV Modules to Differentiate Thermal Fatigue Durability.

  14. Waste Classification based on Waste Form Heat Generation in Advanced Nuclear Fuel Cycles Using the Fuel-Cycle Integration and Tradeoffs (FIT) Model

    SciTech Connect (OSTI)

    Denia Djokic; Steven J. Piet; Layne F. Pincock; Nick R. Soelberg

    2013-02-01

    This study explores the impact of wastes generated from potential future fuel cycles and the issues presented by classifying these under current classification criteria, and discusses the possibility of a comprehensive and consistent characteristics-based classification framework based on new waste streams created from advanced fuel cycles. A static mass flow model, Fuel-Cycle Integration and Tradeoffs (FIT), was used to calculate the composition of waste streams resulting from different nuclear fuel cycle choices. This analysis focuses on the impact of waste form heat load on waste classification practices, although classifying by metrics of radiotoxicity, mass, and volume is also possible. The value of separation of heat-generating fission products and actinides in different fuel cycles is discussed. It was shown that the benefits of reducing the short-term fission-product heat load of waste destined for geologic disposal are neglected under the current source-based radioactive waste classification system , and that it is useful to classify waste streams based on how favorable the impact of interim storage is in increasing repository capacity.

  15. Waste Classification based on Waste Form Heat Generation in Advanced Nuclear Fuel Cycles Using the Fuel-Cycle Integration and Tradeoffs (FIT) Model - 13413

    SciTech Connect (OSTI)

    Djokic, Denia [Department of Nuclear Engineering, University of California - Berkeley, 4149 Etcheverry Hall, Berkeley, CA 94720-1730 (United States)] [Department of Nuclear Engineering, University of California - Berkeley, 4149 Etcheverry Hall, Berkeley, CA 94720-1730 (United States); Piet, Steven J.; Pincock, Layne F.; Soelberg, Nick R. [Idaho National Laboratory - INL, 2525 North Fremont Avenue, Idaho Falls, ID 83415 (United States)] [Idaho National Laboratory - INL, 2525 North Fremont Avenue, Idaho Falls, ID 83415 (United States)

    2013-07-01

    This study explores the impact of wastes generated from potential future fuel cycles and the issues presented by classifying these under current classification criteria, and discusses the possibility of a comprehensive and consistent characteristics-based classification framework based on new waste streams created from advanced fuel cycles. A static mass flow model, Fuel-Cycle Integration and Tradeoffs (FIT), was used to calculate the composition of waste streams resulting from different nuclear fuel cycle choices. This analysis focuses on the impact of waste form heat load on waste classification practices, although classifying by metrics of radiotoxicity, mass, and volume is also possible. The value of separation of heat-generating fission products and actinides in different fuel cycles is discussed. It was shown that the benefits of reducing the short-term fission-product heat load of waste destined for geologic disposal are neglected under the current source-based radioactive waste classification system, and that it is useful to classify waste streams based on how favorable the impact of interim storage is in increasing repository capacity. (authors)

  16. An update on land-ice modeling in the CESM (Conference) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    The current model, however, has significant limitations: The land-ice coupling is one-way; ... of Glimmer-CISM with the shallow-ice approximation; and there is no ice-ocean coupling. ...

  17. Updated opal opacities

    SciTech Connect (OSTI)

    Iglesias, C.A.; Rogers, F.J.

    1996-06-01

    The reexamination of astrophysical opacities has eliminated gross discrepancies between a variety of observations and theoretical calculations; thus allowing for more detailed tests of stellar models. A number of such studies indicate that model results are sensitive to modest changes in the opacity. Consequently, it is desirable to update available opacity databases with recent improvements in physics, refinements of element abundance, and other such factors affecting the results. Updated OPAL Rosseland mean opacities are presented. The new results have incorporated improvements in the physics and numerical procedures as well as corrections. The main opacity changes are increases of as much as 20{percent} for Population I stars due to the explicit inclusion of 19 metals (compared to 12 metals in the earlier calculations) with the other modifications introducing opacity changes smaller than 10{percent}. In addition, the temperature and density range covered by the updated opacity tables has been extended. As before, the tables allow accurate interpolation in density and temperature as well as hydrogen, helium, carbon, oxygen, and metal mass fractions. Although a specific metal composition is emphasized, opacity tables for different metal distributions can be made readily available. The updated opacities are compared to other work. {copyright} {ital 1996 The American Astronomical Society.}

  18. GREET Model Expanded to Better Address Biofuel Life-Cycle Analysis...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    In the expanded catalyst module, users can pull from more than 45 material inputs to build their own catalyst. Data for molybdenum, nickel, zinc, and platinum were updated. The ...

  19. Performance of a new wind updating system for a prognostic meteorological model in the environs of Mexico City

    SciTech Connect (OSTI)

    Williams, M.D.

    1993-12-31

    Los Alamos National Laboratory and Institute Mexicano del Petroleo are completely a joint study of options for improving air quality in Mexico City. The US Department of Energy supported the efforts of the Los Alamos investigators, while PEMEX supported the efforts of the Mexican researchers. One of the first steps in the process was to develop an understanding of the existing air quality situation. In this context we have modified a three-dimensional, prognostic, higher order turbulence model for atmospheric circulation (HOTMAC) to treat domains which include an urbanized area. This sophisticated meteorological model is required because of the complexity of the terrain and the relative paucity of meteorological data. Mexico City lies at an elevation of approximately 7500 feet above sea level in a ``U`` shaped basin which opens to the north. The city occupies a major part of the southwest portion of the basin. Upper level winds are provided by rawinsondes at the airport, while low-level winds are measured at several sites within the city. Many of the sites have obstructed upwind fetches for a variety of directions. During the wintertime when the worst air quality episodes occur, the winds are frequently light, and out of the northeast at lower levels, while above 1000 meters above the surface they are usually from the southwest. This means the winds are light within the city, but significant slope winds develop which influence the behavior of the pollutants. Frequently, the winds in the basin change as a seabreeze penetrates the basin from the northeast. The seabreeze produces a much different wind regime after its arrival in the late afternoon or early evening. This makes it important to update the winds in a realistic fashion.

  20. Washington Update

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    FUPWG: Washington Update November 5, 2014 Timothy D. Unruh PhD, PE, CEM Program Manager DOE FEMP 2 Agenda  Mission  FEMP's Role  White House Capital Solar Challenge  President's Performance Contracting Challenge  UESC  IDIQ Re-compete  eProject Builder- UESC Inclusion  ENABLE- UESC Inclusion  Operations and Maintenance  FEEF Awards-include next award technology  Energy Exchange  Fossil Fuel Rule: SNOPR  Vision for PBC of the Future  Questions 3 Mission

  1. Program Update

    Energy Savers [EERE]

    April-June 2014 issue of the U.S. Department of Energy (DOE) Offce of Legacy Management (LM) Program Update. This publication is designed to provide a status of activities within LM. Please direct all comments and inquiries to lm@hq.doe.gov. April-June 2014 Visit us at http://energy.gov/lm/ Goal 4 Optimizing the Use of Federal Lands Through Disposition The foundation of the U.S. Department of Energy (DOE) Offce of Legacy Manage- ment's (LM) Goal 4, "Optimize the use of land and

  2. Washington Update

    Broader source: Energy.gov (indexed) [DOE]

    April 11, 2012 Federal Energy Management Program femp.energy.gov 2 1. Status of Federal Goals 2. Presidential Memo * Key provisions * Role of UESCs * Agency commitments 3. Meeting Memo's Goals * New Programs * Financing * Reporting and Resources 4. FEMP Update 5. Mark Your Calendar: GovEnergy 2012 Agenda Federal Energy Management Program femp.energy.gov 3 $169 $181 $291 $281 $335 $469 $1,081 $3,544 $2,565 $122 $54 $92 $70 $139 $110 $142 $64 $165 $429 $36 $123 $314 $166 $356 $457 $563 $369 $0

  3. Energy Storage Systems 2010 Update Conference Presentations ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Storage Systems 2010 Update Conference Presentations - Day 2, Session 3 Summary Results for Brine Migration Modeling Performed by LANL, LBNL and SNL for the Used Fuel ...

  4. A model of the methane cycle, permafrost, and hydrology of the Siberian continental margin

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Archer, D.

    2015-05-21

    A two-dimensional model of a sediment column, with Darcy fluid flow, biological and thermal methane production, and permafrost and methane hydrate formation, is subjected to glacial–interglacial cycles in sea level, alternately exposing the continental shelf to the cold atmosphere during glacial times and immersing it in the ocean in interglacial times. The glacial cycles are followed by a "long-tail" 100 kyr warming due to fossil fuel combustion. The salinity of the sediment column in the interior of the shelf can be decreased by hydrological forcing to depths well below sea level when the sediment is exposed to the atmosphere. Theremore » is no analogous advective seawater-injecting mechanism upon resubmergence, only slower diffusive mechanisms. This hydrological ratchet is consistent with the existence of freshwater beneath the sea floor on continental shelves around the world, left over from the last glacial period. The salt content of the sediment column affects the relative proportions of the solid and fluid H2O-containing phases, but in the permafrost zone the salinity in the pore fluid brine is a function of temperature only, controlled by equilibrium with ice. Ice can tolerate a higher salinity in the pore fluid than methane hydrate can at low pressure and temperature, excluding methane hydrate from thermodynamic stability in the permafrost zone. The implication is that any methane hydrate existing today will be insulated from anthropogenic climate change by hundreds of meters of sediment, resulting in a response time of thousands of years. The strongest impact of the glacial–interglacial cycles on the atmospheric methane flux is due to bubbles dissolving in the ocean when sea level is high. When sea level is low and the sediment surface is exposed to the atmosphere, the atmospheric flux is sensitive to whether permafrost inhibits bubble migration in the model. If it does, the atmospheric flux is highest during the glaciating, sea level regression (soil-freezing) part of the cycle rather than during deglacial transgression (warming and thawing). The atmospheric flux response to a warming climate is small, relative to the rest of the methane sources to the atmosphere in the global budget, because of the ongoing flooding of the continental shelf. The increased methane flux due to ocean warming could be completely counteracted by a sea level rise of tens of meters on millennial timescales due to the loss of ice sheets, decreasing the efficiency of bubble transit through the water column. The model results give no indication of a mechanism by which methane emissions from the Siberian continental shelf could have a significant impact on the near-term evolution of Earth's climate, but on millennial timescales the release of carbon from hydrate and permafrost could contribute significantly to the fossil fuel carbon burden in the atmosphere–ocean–terrestrial carbon cycle.« less

  5. Model predictive control system and method for integrated gasification combined cycle power generation

    DOE Patents [OSTI]

    Kumar, Aditya; Shi, Ruijie; Kumar, Rajeeva; Dokucu, Mustafa

    2013-04-09

    Control system and method for controlling an integrated gasification combined cycle (IGCC) plant are provided. The system may include a controller coupled to a dynamic model of the plant to process a prediction of plant performance and determine a control strategy for the IGCC plant over a time horizon subject to plant constraints. The control strategy may include control functionality to meet a tracking objective and control functionality to meet an optimization objective. The control strategy may be configured to prioritize the tracking objective over the optimization objective based on a coordinate transformation, such as an orthogonal or quasi-orthogonal projection. A plurality of plant control knobs may be set in accordance with the control strategy to generate a sequence of coordinated multivariable control inputs to meet the tracking objective and the optimization objective subject to the prioritization resulting from the coordinate transformation.

  6. Updates | Department of Energy

    Office of Environmental Management (EM)

    blog is updated every time a significant update is made to the Communication Standards Web site. On this page, you can sign up to be notified by email when the blog is updated,...

  7. User Guide for VISION 3.4.7 (Verifiable Fuel Cycle Simulation) Model

    SciTech Connect (OSTI)

    Jacob J. Jacobson; Robert F. Jeffers; Gretchen E. Matthern; Steven J. Piet; Wendell D. Hintze

    2011-07-01

    The purpose of this document is to provide a guide for using the current version of the Verifiable Fuel Cycle Simulation (VISION) model. This is a complex model with many parameters and options; the user is strongly encouraged to read this user guide before attempting to run the model. This model is an R&D work in progress and may contain errors and omissions. It is based upon numerous assumptions. This model is intended to assist in evaluating 'what if' scenarios and in comparing fuel, reactor, and fuel processing alternatives at a systems level. The model is not intended as a tool for process flow and design modeling of specific facilities nor for tracking individual units of fuel or other material through the system. The model is intended to examine the interactions among the components of a fuel system as a function of time varying system parameters; this model represents a dynamic rather than steady-state approximation of the nuclear fuel system. VISION models the nuclear cycle at the system level, not individual facilities, e.g., 'reactor types' not individual reactors and 'separation types' not individual separation plants. Natural uranium can be enriched, which produces enriched uranium, which goes into fuel fabrication, and depleted uranium (DU), which goes into storage. Fuel is transformed (transmuted) in reactors and then goes into a storage buffer. Used fuel can be pulled from storage into either separation or disposal. If sent to separations, fuel is transformed (partitioned) into fuel products, recovered uranium, and various categories of waste. Recycled material is stored until used by its assigned reactor type. VISION is comprised of several Microsoft Excel input files, a Powersim Studio core, and several Microsoft Excel output files. All must be co-located in the same folder on a PC to function. You must use Powersim Studio 8 or better. We have tested VISION with the Studio 8 Expert, Executive, and Education versions. The Expert and Education versions work with the number of reactor types of 3 or less. For more reactor types, the Executive version is currently required. The input files are Excel2003 format (xls). The output files are macro-enabled Excel2007 format (xlsm). VISION 3.4 was designed with more flexibility than previous versions, which were structured for only three reactor types - LWRs that can use only uranium oxide (UOX) fuel, LWRs that can use multiple fuel types (LWR MF), and fast reactors. One could not have, for example, two types of fast reactors concurrently. The new version allows 10 reactor types and any user-defined uranium-plutonium fuel is allowed. (Thorium-based fuels can be input but several features of the model would not work.) The user identifies (by year) the primary fuel to be used for each reactor type. The user can identify for each primary fuel a contingent fuel to use if the primary fuel is not available, e.g., a reactor designated as using mixed oxide fuel (MOX) would have UOX as the contingent fuel. Another example is that a fast reactor using recycled transuranic (TRU) material can be designated as either having or not having appropriately enriched uranium oxide as a contingent fuel. Because of the need to study evolution in recycling and separation strategies, the user can now select the recycling strategy and separation technology, by year.

  8. Webinar: DOE Updates JOBS and Economic Impacts of Fuel Cells...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1.1) Model Webinar: DOE Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1.1) Model Above is the video recording for ...

  9. Computational Model of Population Dynamics Based on the Cell Cycle and Local Interactions

    SciTech Connect (OSTI)

    Oprisan, Sorinel Adrian; Oprisan, Ana

    2005-03-31

    Our study bridges cellular (mesoscopic) level interactions and global population (macroscopic) dynamics of carcinoma. The morphological differences and transitions between well and smooth defined benign tumors and tentacular malignat tumors suggest a theoretical analysis of tumor invasion based on the development of mathematical models exhibiting bifurcations of spatial patterns in the density of tumor cells. Our computational model views the most representative and clinically relevant features of oncogenesis as a fight between two distinct sub-systems: the immune system of the host and the neoplastic system. We implemented the neoplastic sub-system using a three-stage cell cycle: active, dormant, and necrosis. The second considered sub-system consists of cytotoxic active (effector) cells -- EC, with a very broad phenotype ranging from NK cells to CTL cells, macrophages, etc. Based on extensive numerical simulations, we correlated the fractal dimensions for carcinoma, which could be obtained from tumor imaging, with the malignat stage. Our computational model was able to also simulate the effects of surgical, chemotherapeutical, and radiotherapeutical treatments.

  10. News and Updates

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    News and Updates Next Cleanroom Training to be announced NEWS: Article published in Louisiana Technology Guide

  11. Steam Generator Component Model in a Combined Cycle of Power Conversion Unit for Very High Temperature Gas-Cooled Reactor

    SciTech Connect (OSTI)

    Oh, Chang H; Han, James; Barner, Robert; Sherman, Steven R

    2007-06-01

    The Department of Energy and the Idaho National Laboratory are developing a Next Generation Nuclear Plant (NGNP), Very High Temperature Gas-Cooled Reactor (VHTR) to serve as a demonstration of state-of-the-art nuclear technology. The purpose of the demonstration is two fold 1) efficient low cost energy generation and 2) hydrogen production. Although a next generation plant could be developed as a single-purpose facility, early designs are expected to be dual-purpose. While hydrogen production and advanced energy cycles are still in its early stages of development, research towards coupling a high temperature reactor, electrical generation and hydrogen production is under way. A combined cycle is considered as one of the power conversion units to be coupled to the very high-temperature gas-cooled reactor (VHTR). The combined cycle configuration consists of a Brayton top cycle coupled to a Rankine bottoming cycle by means of a steam generator. A detailed sizing and pressure drop model of a steam generator is not available in the HYSYS processes code. Therefore a four region model was developed for implementation into HYSYS. The focus of this study was the validation of a HYSYS steam generator model of two phase flow correlations. The correlations calculated the size and heat exchange of the steam generator. To assess the model, those calculations were input into a RELAP5 model and its results were compared with HYSYS results. The comparison showed many differences in parameters such as the heat transfer coefficients and revealed the different methods used by the codes. Despite differences in approach, the overall results of heat transfer were in good agreement.

  12. A "Make-a-Difference" Experiment to Assess the Value of ARM Data in Carbon Cycle Models

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "Make a Difference" Experiment to Assess the Value of ARM Data in Carbon Cycle Models W. W. Hargrove, C. C. Brandt, H. I. Jager, and R. A. McCord Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge, Tennessee Introduction Atmospheric Radiation Measurement (ARM) Program data include many of the measurements needed by carbon modelers to predict carbon dynamics in terrestrial ecosystems. How much difference, if any, would using ARM measurements rather than any of

  13. LLNL Update

    Broader source: Energy.gov (indexed) [DOE]

    Agent Modeling Commercial Codes Stochastic and Optimization Programming High Performance Computing 13 The Labs can provide risk- and uncertainty-quantified decision support to...

  14. A life-cycle model approach to multimedia waste reduction measuring performance for environmental cleanup projects

    SciTech Connect (OSTI)

    Phifer, B.E. Jr.; George, S.M.

    1993-07-01

    The Martin Marietta Energy Systems, Inc. (Energy Systems), Environmental Restoration (ER) Program adopted a Pollution Prevention Program in March 1991. The program`s mission is to minimize waste and prevent pollution in remedial investigations (RIs), feasibility studies, decontamination and decommissioning, and surveillance and maintenance site program activities. Mission success will result in volume and/or toxicity reduction of generated waste. The ER Program waste generation rates are projected to steadily increase through the year 2005 for all waste categories. Standard production units utilized to measure waste minimization apply to production/manufacturing facilities. Since ER inherited contaminated waste from previous production processes, no historical production data can be applied. Therefore, a more accurate measure for pollution prevention was identified as a need for the ER Program. The Energy Systems ER Program adopted a life-cycle model approach and implemented the concept of numerically scoring their waste generators to measure the effectiveness of pollution prevention/waste minimization programs and elected to develop a numerical scoring system (NSS) to accomplish these measurements. The prototype NSS, a computerized, user-friendly information management database system, was designed to be utilized in each phase of the ER Program. The NSS was designed to measure a generator`s success in incorporating pollution prevention in their work plans and reducing investigation-derived waste (IDW) during RIs. Energy Systems is producing a fully developed NSS and actually scoring the generators of IDW at six ER Program sites. Once RI waste generators are scored utilizing the NSS, the numerical scores are distributed into six performance categories: training, self-assessment, field implementation, documentation, technology transfer, and planning.

  15. LPO Updates | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Updates LPO Updates LPO Updates Subscribe to LPO Updates Enter your email to receive periodic updates and announcements from LPO. You may unsubscribe at any time. Email: Subscribe Past LPO Updates LPO Update, 17-Dec-2015: Download as a PDF | View online LPO Update, 22-Oct-2015: Download as a PDF | View online LPO Update, 25-Aug-2015: Download as a PDF | View online LPO Update, 19-Aug-2015: Download as a PDF | View online LPO Update, 24-Jun-2015: Download as a PDF | View online LPO Update,

  16. NEAMS Update

    Office of Environmental Management (EM)

    April - June 2014 Nuclear Energy ANL/NEAMS-14/3 Overview } } BISON's thermo-mechanical contact algorithm was significantly improved (page 2). } } MOOSE and PETSc were enhanced to improve the convergence of the contact solver (page 2). } } A temperature-based creep model for zircaloy cladding was added to BISON (page 3). } } Progress was made in the BISON model for fuel microstructure, in particular for the evolution of the average grain size (page 3). } } Improvements to MOOSE interfaces and

  17. The need for a characteristics-based approach to radioactive waste classification as informed by advanced nuclear fuel cycles using the fuel-cycle integration and tradeoffs (FIT) model

    SciTech Connect (OSTI)

    Djokic, D. [Department of Nuclear Engineering, University of California, Berkeley, 3115B Etcheverry Hall, Berkeley, CA 94720-1730 (United States); Piet, S.; Pincock, L.; Soelberg, N. [Idaho National Laboratory - INL, 2525 North Fremont Avenue, Idaho Falls, ID 83415 (United States)

    2013-07-01

    This study explores the impact of wastes generated from potential future fuel cycles and the issues presented by classifying these under current classification criteria, and discusses the possibility of a comprehensive and consistent characteristics-based classification framework based on new waste streams created from advanced fuel cycles. A static mass flow model, Fuel-Cycle Integration and Tradeoffs (FIT), was used to calculate the composition of waste streams resulting from different nuclear fuel cycle choices. Because heat generation is generally the most important factor limiting geological repository areal loading, this analysis focuses on the impact of waste form heat load on waste classification practices, although classifying by metrics of radiotoxicity, mass, and volume is also possible. Waste streams generated in different fuel cycles and their possible classification based on the current U.S. framework and international standards are discussed. It is shown that the effects of separating waste streams are neglected under a source-based radioactive waste classification system. (authors)

  18. Super Boiler Update

    SciTech Connect (OSTI)

    2007-10-01

    This presentation from the 2007 American Boiler Manufacturers Association Manufacturers Conference provides an update of the First Generation Super Boiler.

  19. NEAMS Update

    Office of Environmental Management (EM)

    January - March 2014 Nuclear Energy ANL/NEAMS-14/2 Overview } } A fully three-dimensional smeared cracking model has been implemented and tested in BISON (page 2). } } DAKOTA-BISON was used to study the parameters that govern heat transfer across the fuel-cladding (page 2). } } Calculations of grain boundary mobility in UO 2 have been extended to high temperatures (page 2). } } Mesh adaptivity is being employed in MARMOT simulations to increase computational efficiency (page 3). } } Molecular

  20. Modeling and experimental results for condensing supercritical CO2 power cycles.

    SciTech Connect (OSTI)

    Wright, Steven Alan; Conboy, Thomas M.; Radel, Ross F.; Rochau, Gary Eugene

    2011-01-01

    This Sandia supported research project evaluated the potential improvement that 'condensing' supercritical carbon dioxide (S-CO{sub 2}) power cycles can have on the efficiency of Light Water Reactors (LWR). The analytical portion of research project identified that a S-CO{sub 2} 'condensing' re-compression power cycle with multiple stages of reheat can increase LWR power conversion efficiency from 33-34% to 37-39%. The experimental portion of the project used Sandia's S-CO{sub 2} research loop to show that the as designed radial compressor could 'pump' liquid CO{sub 2} and that the gas-cooler's could 'condense' CO{sub 2} even though both of these S-CO{sub 2} components were designed to operate on vapor phase S-CO{sub 2} near the critical point. There is potentially very high value to this research as it opens the possibility of increasing LWR power cycle efficiency, above the 33-34% range, while lowering the capital cost of the power plant because of the small size of the S-CO{sub 2} power system. In addition it provides a way to incrementally build advanced LWRs that are optimally designed to couple to S-CO{sub 2} power conversion systems to increase the power cycle efficiency to near 40%.

  1. Simulating the Impacts of Disturbances on Forest Carbon Cycling in North America: Processes, Data, Models, and Challenges

    SciTech Connect (OSTI)

    Liu, Shuguang; Bond-Lamberty, Benjamin; Hicke, J.; Vargas, Rodrigo; Zhao, Shuqing; Chen, Jing Ming; Edburg, Steve; Hu, Yueming; Liu, Jinxun; McGuire, A. David; Xiao, Jingfeng; Keane, Robert; Yuan, Wenping; Tang, Jianwu; Luo, Yiqi; Potter, Christopher; Oeding, Jennifer

    2011-11-08

    Disturbances disrupt the forest structures and alter forest resources, substrate availability, or the physical environment. Understanding disturbances and their impacts is critical for a better quantification of North American carbon dynamics. We reviewed the status and major challenges in simulating the impacts of disturbances on forest carbon cycling in North America from the perspectives of process understanding, disturbance characterization, and modeling, and found some major issues. First, we do not have adequate continentally-consistent disturbance databases to support the NACP missions. Community effort, in collaborating with the modeling community, should be designated to systematically define international standards for disturbance databases with explicit inclusion of uncertainty measurements, adequate spatial and temporal resolutions, and explicit and quantifiable linkages with model simulations. Second, there is a need to develop effective and comprehensive process-based procedures or algorithms that can be used to quantify the immediate and long-term impacts of disturbances on forest succession, soils, microclimate, and cycles of carbon, water, and nutrients. These algorithms should be evaluated not only on the carbon cycle but also on the simulations of vegetation succession, alterations of soil and microclimate, and water and nutrients dynamics because adequate simulations of carbon dynamics rely on the correct quantification of the changes of soil and vegetation conditions. Third, the scaling challenges have rarely been addressed at the continental scale. We do not understand which processes and properties at a given temporal or spatial scales are critical while others can be simplified when we try to balance the North American carbon budget. Previous and current model simulations at the continental scale did not incorporate a full suite of disturbances information (because they do not exist as described above), and therefore provided little insight on the relative importance of various disturbances at the continent and regional scales on the carbon cycle. Fourth, our capability of simulating the occurrences and severity of disturbances under climate change and management futures are very limited. Fifth, uncertainty exists in every step of the effort to simulating the impacts of disturbances on carbon dynamics. Procedures are needed to quantify the uncertainty of model inputs or data layers, model parameters, and model structures, and their impacts on model simulations. Working together, modelers and data layer developers can identify the most uncertain areas and develop working hypotheses to reduce the uncertainty.

  2. Ocean Carbon Cycle Models from the Carbon Dioxide Information Analysis Center (CDIAC)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    •\tPacific data-model intercomparison from Patrick Wetzel (Max Planck Institute for Meteorology, Germany)

  3. An updated analysis of Inert Higgs Doublet Model in light of the recent results from LUX, PLANCK, AMS-02 and LHC

    SciTech Connect (OSTI)

    Arhrib, Abdesslam; Tsai, Yue-Lin Sming; Yuan, Tzu-Chiang; Yuan, Qiang E-mail: yue-lin.tsai@ipmu.jp E-mail: tcyuan@phys.sinica.edu.tw

    2014-06-01

    In light of the recent discovery by the ATLAS and CMS experiments at the Large Hadron Collider (LHC) of a Higgs-like particle with a narrow mass range of 125–126 GeV, we perform an updated analysis on one of the popular scalar dark matter models, the Inert Higgs Doublet Model (IHDM). We take into account in our likelihood analysis of various experimental constraints, including recent relic density measurement, dark matter direct and indirect detection constraints as well as the latest collider constraints on the invisible decay width of the Higgs boson and monojet search at the LHC. It is shown that if the invisible decay of the standard model Higgs boson is open, LHC as well as direct detection experiments like LUX and XENON100 could put stringent limits on the Higgs boson couplings to dark matter. We find that the most favoured parameter space for IHDM corresponds to dark matter with a mass less than 100 GeV or so. In particular, the best-fit points are at the dark matter mass around 70 GeV where the invisible Higgs decay to dark matter is closed. Scalar dark matter in the higher mass range of 0.5–4 TeV is also explored in our study. Projected sensitivities for the future experiments of monojet at LHC-14, XENON1T and AMS-02 one year antiproton flux are shown to put further constraints on the existing parameter space of IHDM.

  4. Updates and Status

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Updates and Status Current Status: Up Open Issues List of known problems, submitted bug reports and issues we are actively working on Read More » Timeline and Updates A list of major system changes and updates Read More » Email Announcements Archive An archive of email announcements sent to NERSC users regarding Edison Read More » Last edited: 2016-02-01 08:06:23

  5. Direct-contact condensers for open-cycle OTEC applications: Model validation with fresh water experiments for structured packings

    SciTech Connect (OSTI)

    Bharathan, D.; Parsons, B.K.; Althof, J.A.

    1988-10-01

    The objective of the reported work was to develop analytical methods for evaluating the design and performance of advanced high-performance heat exchangers for use in open-cycle thermal energy conversion (OC-OTEC) systems. This report describes the progress made on validating a one-dimensional, steady-state analytical computer of fresh water experiments. The condenser model represents the state of the art in direct-contact heat exchange for condensation for OC-OTEC applications. This is expected to provide a basis for optimizing OC-OTEC plant configurations. Using the model, we examined two condenser geometries, a cocurrent and a countercurrent configuration. This report provides detailed validation results for important condenser parameters for cocurrent and countercurrent flows. Based on the comparisons and uncertainty overlap between the experimental data and predictions, the model is shown to predict critical condenser performance parameters with an uncertainty acceptable for general engineering design and performance evaluations. 33 refs., 69 figs., 38 tabs.

  6. Directives Quarterly Updates

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

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  7. Natural Gas Weekly Update

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  5. NIF Status Update - 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    status NIF Status Update - 2014 May - Highlights of May Experiments on NIF Gigabar Equation-of-State Experiments Production of Beryllium Capsules for NIF Begins First Weekly...

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    Update: Gulf South Pipeline Company began scheduled maintenance on the Jackson Compressor Station in central Mississippi on Tuesday, September 12. The maintenance...

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    Gasoline and Diesel Fuel Update (EIA)

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  8. Natural Gas Weekly Update

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    Gasoline and Diesel Fuel Update (EIA)

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    Release: Thursday, August 19, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, August 11, 2010) Summer...

  15. Natural Gas Weekly Update

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  16. Natural Gas Weekly Update

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    Release: Thursday, February 3, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, January 26, 2011)...

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    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Release: Thursday, December 16, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, December 8, 2010) In...

  19. Electricity Monthly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    See all Electricity Reports Electricity Monthly Update With Data for November 2014 | Release Date: Jan. 26, 2015 | Next Release Date: Feb. 24, 2015 Previous Issues Issue:...

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    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Update November 28, 2012 Map of Electric System Selected for Daily Peak Demand was replaced with the correct map showing Selected Wholesale Electricity and Natural Gas Locations....

  1. Next Update: November 2016"

    U.S. Energy Information Administration (EIA) Indexed Site

    November 2015) Next Update: November 2016" "YEAR","STATE","TYPE OF PRODUCER","ENERGY ... Electric Utilities","Natural Gas (Mcf)",5201650 1996,"MO","Combined Heat and Power, ...

  2. Update on Revenue Strategies

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network Program Sustainability Peer Exchange Call Series: Update on Revenue Strategies, call slides and discussion summary, December 11, 2014.

  3. Electricity Monthly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Methodology and Documentation General The Electricity Monthly Update is prepared by the Electric Power Operations Team, Office of Electricity, Renewables and Uranium Statistics,...

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    June 12, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview Spot gas at most market locations (outside the Rocky Mountain Region) traded...

  6. Electricity Monthly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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  7. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

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  8. Electricity Monthly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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  9. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update (EIA)

    data to EIA. The number of companies reporting increased by 3 from 2008, to include Alon USA, Chalmette Refining LLC, and Western Refining, Inc. Natural Gas Transportation Update...

  10. A Multi-Year Plan for Enhancing Turbulence Modeling in Hydra-TH Revised and Updated Version 2.0

    SciTech Connect (OSTI)

    Smith, Thomas M.; Berndt, Markus; Baglietto, Emilio; Magolan, Ben

    2015-10-01

    The purpose of this report is to document a multi-year plan for enhancing turbulence modeling in Hydra-TH for the Consortium for Advanced Simulation of Light Water Reactors (CASL) program. Hydra-TH is being developed to the meet the high- fidelity, high-Reynolds number CFD based thermal hydraulic simulation needs of the program. This work is being conducted within the thermal hydraulics methods (THM) focus area. This report is an extension of THM CASL milestone L3:THM.CFD.P10.02 [33] (March, 2015) and picks up where it left off. It will also serve to meet the requirements of CASL THM level three milestone, L3:THM.CFD.P11.04, scheduled for completion September 30, 2015. The objectives of this plan will be met by: maturation of recently added turbulence models, strategic design/development of new models and systematic and rigorous testing of existing and new models and model extensions. While multi-phase turbulent flow simulations are important to the program, only single-phase modeling will be considered in this report. Large Eddy Simulation (LES) is also an important modeling methodology. However, at least in the first year, the focus is on steady-state Reynolds Averaged Navier-Stokes (RANS) turbulence modeling.

  11. Sandia Energy - DHS Mulls Updates to Chemical Site Risk Assessments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DHS Mulls Updates to Chemical Site Risk Assessments Home Infrastructure Security Infrastructure Assurance Facilities News NISAC News & Events Research & Capabilities Modeling...

  12. Structural analysis of three global land models on carbon cycle simulations using a traceability framework

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Rafique, R.; Xia, J.; Hararuk, O.; Luo, Y.

    2014-06-27

    Modeled carbon (C) storage capacity is largely determined by the C residence time and net primary productivity (NPP). Extensive research has been done on NPP dynamics but the residence time and their relationships with C storage are much less studied. In this study, we implemented a traceability analysis to understand the modeled C storage and residence time in three land surface models: CSIRO's Atmosphere Biosphere Land Exchange (CABLE) with 9 C pools, Community Land Model (version 3.5) combined with Carnegie-Ames-Stanford Approach (CLM3.5-CASA) with 12 C pools and Community Land Model (version 4) (CLM4) with 26 C pools. The globally averagedmore »C storage and residence time was computed at both individual pool and total ecosystem levels. The spatial distribution of total ecosystem C storage and residence time differ greatly among the three models. The CABLE model showed a closer agreement with measured C storage and residence time in plant and soil pools than CLM3.5-CASA and CLM4. However, CLM3.5-CASA and CLM4 were close to each other in modeled C storage but not with measured data. CABLE stores more C in root whereas CLM3.5-CASA and CLM4 store more C in woody pools, partly due to differential NPP allocation in respective pools. The C residence time in individual C pools is greatly different among models, largely because of different transfer coefficient values among pools. CABLE had higher bulk residence time for soil C pools than the other two models. Overall, the traceability analysis used in this study can help fully characterizes the behavior of complex land models.« less

  13. Use of a dynamic simulation model to understand nitrogen cycling in the middle Rio Grande, NM.

    SciTech Connect (OSTI)

    Meixner, Tom; Tidwell, Vincent Carroll; Oelsner, Gretchen; Brooks, Paul; Roach, Jesse D.

    2008-08-01

    Water quality often limits the potential uses of scarce water resources in semiarid and arid regions. To best manage water quality one must understand the sources and sinks of both solutes and water to the river system. Nutrient concentration patterns can identify source and sink locations, but cannot always determine biotic processes that affect nutrient concentrations. Modeling tools can provide insight into these large-scale processes. To address questions about large-scale nitrogen removal in the Middle Rio Grande, NM, we created a system dynamics nitrate model using an existing integrated surface water--groundwater model of the region to evaluate our conceptual models of uptake and denitrification as potential nitrate removal mechanisms. We modeled denitrification in groundwater as a first-order process dependent only on concentration and used a 5% denitrification rate. Uptake was assumed to be proportional to transpiration and was modeled as a percentage of the evapotranspiration calculated within the model multiplied by the nitrate concentration in the water being transpired. We modeled riparian uptake as 90% and agricultural uptake as 50% of the respective evapotranspiration rates. Using these removal rates, our model results suggest that riparian uptake, agricultural uptake and denitrification in groundwater are all needed to produce the observed nitrate concentrations in the groundwater, conveyance channels, and river as well as the seasonal concentration patterns. The model results indicate that a total of 497 metric tons of nitrate-N are removed from the Middle Rio Grande annually. Where river nitrate concentrations are low and there are no large nitrate sources, nitrate behaves nearly conservatively and riparian and agricultural uptake are the most important removal mechanisms. Downstream of a large wastewater nitrate source, denitrification and agricultural uptake were responsible for approximately 90% of the nitrogen removal.

  14. Sandy Updates | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Press Release Search link to facebook link to twitter Email Signup Sign up for updates Go Search form Search Press Release You are here Home Sandy Updates Sandy Updates No...

  15. DOE Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1.1) Model DOE Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1.1) Model Download the presentation slides from the ...

  16. Fuel-Cycle Analysis of Hydrogen-Powered Fuel-Cell Systems with the GREET Model

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Analysis of Hydrogen-Powered Fuel-Cell Systems with the GREET Model Michael Wang Argonne National Laboratory June 10, 2008 Project ID # AN2 This presentation does not contain any proprietary, confidential, or otherwise restricted information 2 Overview * Project start date: Oct. 2002 * Project end date: Continuous * Percent complete: N/A * Inconsistent data, assumptions, and guidelines * Suite of models and tools * Unplanned studies and analyses * Total project funding from DOE: $2.04 million

  17. Fuel-Cycle Energy and Emissions Analysis with the GREET Model

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy and Emissions Analysis with the GREET Model Michael Wang Argonne National Laboratory May 19, 2009 Project ID: ftp_02_wang This presentation does not contain any proprietary, confidential, or otherwise restricted information Overview of GREET Model Development * Start - 1995 * Finish - continuous * % complete - not applicable * Develop a comprehensive tool to examine full energy and emission effects of vehicle/fuel systems * Conduct thorough WTW analyses with the developed tool * Total

  18. Accelerating the spin-up of the coupled carbon and nitrogen cycle model in CLM4

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Fang, Yilin; Liu, Chongxuan; Leung, Lai-Yung R.

    2015-03-24

    The commonly adopted biogeochemistry spin-up process in an Earth system model (ESM) is to run the model for hundreds to thousands of years subject to periodic atmospheric forcing to reach dynamic steady state of the carbon–nitrogen (CN) models. A variety of approaches have been proposed to reduce the computation time of the spin-up process. Significant improvement in computational efficiency has been made recently. However, a long simulation time is still required to reach the common convergence criteria of the coupled carbon–nitrogen model. A gradient projection method was proposed and used to further reduce the computation time after examining the trendmore » of the dominant carbon pools. The Community Land Model version 4 (CLM4) with a carbon and nitrogen component was used in this study. From point-scale simulations, we found that the method can reduce the computation time by 20–69% compared to one of the fastest approaches in the literature. We also found that the cyclic stability of total carbon for some cases differs from that of the periodic atmospheric forcing, and some cases even showed instability. Close examination showed that one case has a carbon periodicity much longer than that of the atmospheric forcing due to the annual fire disturbance that is longer than half a year. The rest was caused by the instability of water table calculation in the hydrology model of CLM4. The instability issue is resolved after we replaced the hydrology scheme in CLM4 with a flow model for variably saturated porous media.« less

  19. Accelerating the spin-up of the coupled carbon and nitrogen cycle model in CLM4

    SciTech Connect (OSTI)

    Fang, Yilin; Liu, Chongxuan; Leung, Lai-Yung R.

    2015-03-24

    The commonly adopted biogeochemistry spin-up process in an Earth system model (ESM) is to run the model for hundreds to thousands of years subject to periodic atmospheric forcing to reach dynamic steady state of the carbon–nitrogen (CN) models. A variety of approaches have been proposed to reduce the computation time of the spin-up process. Significant improvement in computational efficiency has been made recently. However, a long simulation time is still required to reach the common convergence criteria of the coupled carbon–nitrogen model. A gradient projection method was proposed and used to further reduce the computation time after examining the trend of the dominant carbon pools. The Community Land Model version 4 (CLM4) with a carbon and nitrogen component was used in this study. From point-scale simulations, we found that the method can reduce the computation time by 20–69% compared to one of the fastest approaches in the literature. We also found that the cyclic stability of total carbon for some cases differs from that of the periodic atmospheric forcing, and some cases even showed instability. Close examination showed that one case has a carbon periodicity much longer than that of the atmospheric forcing due to the annual fire disturbance that is longer than half a year. The rest was caused by the instability of water table calculation in the hydrology model of CLM4. The instability issue is resolved after we replaced the hydrology scheme in CLM4 with a flow model for variably saturated porous media.

  20. Update: Solar Powered Classroom | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Update: Solar Powered Classroom Update: Solar Powered Classroom Addthis Speakers Aaron Sebens Duration 1:00

  1. Thermodynamic constitutive model for load-biased thermal cycling test of shape memory alloy

    SciTech Connect (OSTI)

    Young, Sung; Nam, Tae-Hyun

    2013-12-15

    Graphical abstract: - Highlights: • Thermodynamic calculation model for martensitic transformation of shape memory alloy was proposed. • Evolution of the self-accommodation was considered independently by a rate-dependent kinetic equation. • Finite element calculation was conducted for B2–B19? transformation of Ti–44.5Ni–5Cu–0.5 V (at.%). • Three-dimensional numerical results predict the macroscopic strain under bias loading accurately. - Abstract: This paper presents a three-dimensional calculation model for martensitic phase transformation of shape memory alloy. Constitutive model based on thermodynamic theory was provided. The average behavior was accounted for by considering the volume fraction of each martensitic variant in the material. Evolution of the volume fraction of each variant was determined by a rate-dependent kinetic equation. We assumed that nucleation rate is faster for the self-accommodation than for the stress-induced variants. Three-dimensional finite element analysis was conducted and the results were compared with the experimental data of Ti–44.5Ni–5Cu–0.5 V (at.%) alloy under bias loading.

  2. Emergency evacuation/transportation plan update: Traffic model development and evaluation of early closure procedures. Final report

    SciTech Connect (OSTI)

    1993-10-28

    Prolonged delays in traffic experienced by Laboratory personnel during a recent early dismissal in inclement weather, coupled with reconstruction efforts along NM 502 east of the White Rock Wye for the next 1 to 2 years, has prompted Los Alamos National Laboratory (LANL) to re-evaluate and improve the present transportation plan and its integration with contingency plans maintained in other organizations. Facilities planners and emergency operations staff need to evaluate the transportation system`s capability to inefficiently and safely evacuate LANL under different low-level emergency conditions. A variety of potential procedures governing the release of employees from the different technical areas (TAs) requires evaluation, perhaps with regard to multiple emergency-condition scenarios, with one or more optimal procedures ultimately presented for adoption by Lab Management. The work undertaken in this project will hopefully lay a foundation for an on-going, progressive transportation system analysis capability. It utilizes microscale simulation techniques to affirm, reassess and validate the Laboratory`s Early Dismissal/Closure/Delayed Opening Plan. The Laboratory is required by Federal guidelines, and compelled by prudent practice and conscientious regard for the welfare of employees and nearby residents, to maintain plans and operating procedures for evacuation if the need arises. The tools developed during this process can be used outside of contingency planning. It is anticipated that the traffic models developed will allow site planners to evaluate changes to the traffic network which could better serve the normal traffic levels. Changes in roadway configuration, control strategies (signalization and signing), response strategies to traffic accidents, and patterns of demand can be modelled using the analysis tools developed during this project. Such scenarios typically are important considerations in master planning and facilities programming.

  3. Energy 101: Wind Turbines - 2014 Update | Department of Energy

    Office of Environmental Management (EM)

    Wind Turbines - 2014 Update Energy 101: Wind Turbines - 2014 Update

  4. Updated models for the creation of a low-Z QSO absorber by a dwarf galaxy wind

    SciTech Connect (OSTI)

    Keeney, Brian A.; Joeris, Peter; Stocke, John T.; Danforth, Charles W.; Levesque, Emily M.

    2014-11-01

    We present new GALEX images and optical spectroscopy of J1229+02, a dwarf post-starburst galaxy located 81 kpc from the 1585 km s{sup ?1} absorber in the 3C 273 sight line. The absence of H? emission and the faint GALEX UV fluxes confirm that the galaxy's recent star formation rate is <10{sup ?3} M{sub ?} yr{sup ?1}. Absorption-line strengths and the UV?optical SED give similar estimates of the acceptable model parameters for its youngest stellar population where f{sub m}<60% of its total stars (by mass) formed in a burst t{sub sb}=0.7–3.4 Gyr ago with a stellar metallicity of ?1.7<[Fe/H]<+0.2; we also estimate the stellar mass of J1229+02 to be 7.3models for J1229+02 using fiducial values of f{sub m}?0.1, t{sub sb}?2 Gyr, and log(M{sub ?}/M{sub ?})?7.5 allow us to conclude that the galaxy alone cannot produce the observed QSO absorber; i.e., any putative ejecta must interact with ambient gas from outside J1229+02. Because J1229+02 is located in the southern extension of the Virgo cluster ample potential sources of this ambient gas exist. Based on the two nearest examples of strong metal-line absorbers discovered serendipitously (the current one and the 1700 km s{sup ?1} metal-line absorber in the nearby Q1230 + 0115 sight line), we conclude that absorbers with 10{sup 14}

  5. Apps for Energy Update

    Broader source: Energy.gov [DOE]

    April has been an exciting month for the Apps for Energy competition, so we want to take a few minutes to update Energy.gov readers on the competition and the plan for announcing the winners.

  6. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Holiday Notice: Due to the federal holiday in observance of Martin Luther King Day on Monday, January 21, 2002, the next issue of the Natural Gas Weekly Update will be published on...

  7. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    at 2:00 P.M. Next Release: October 8, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, September 30,...

  8. Natural Gas Weekly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Update until January 2, 2002. Overview: Monday, December 17, 2001 The spot price at the Henry Hub finished the trading week on December 14 at 2.41 per MMBtu, roughly 30 cents or...

  9. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    7, 2010 at 2:00 P.M. Next Release: Thursday, October 14, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  10. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    4, 2010 at 2:00 P.M. Next Release: Thursday, October 21, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  11. NIF Status Update - 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    news NIF Status Update - 2014 May Gigabar Equation-of-State Experiment Reaches Record Pressures On May 29, the NIF Team fired two gigabar (Gbar)-class equation-of-state experiments...

  12. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Transportation Update: Pacific Gas and Electric Company (PG&E) extended a Stage 2 high-inventory operational flow order (OFO) from Friday, June 8, through Wednesday, June 13,...

  13. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    2, 2010 at 2:00 P.M. Next Release: Thursday, April 29, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  14. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    9, 2010 at 2:00 P.M. Next Release: Thursday, May 6, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  15. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    3, 2011 at 2:00 P.M. Next Release: Thursday, February 10, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending...

  16. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    on Thursday, May 9, 2002. A sample of EIA's report can be seen at: Weekly Gas Storage Test Page. The Natural Gas Weekly Market Update report will convert to the new data series...

  17. Next Update: November 2016"

    U.S. Energy Information Administration (EIA) Indexed Site

    November 2015) Next Update: November 2016" "YEAR","STATE","TYPE OF PRODUCER","ENERGY ... Heat and Power, Electric Power","Total",32016 1990,"OH","Combined Heat and Power, ...

  18. o CNMS Status Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Town Hall User Meeting (see attached slides) * Agenda: o Intro of UEC o CNMS Status Update o UEC activities o Nominations for open seat on the UEC * Activities o Monthly Telecon o...

  19. WIPP Nitrate Updates 2015

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    5 WIPP Nitrate Salt Bearing Waste Container Isolation Plan Implementation Update, July 23, 2015 Waste Isolation Pilot Plant EPA I.D. Number: NM4890139088-TSDF WIPP Nitrate Salt...

  20. WIPP Nitrate Updates 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Update, December 4, 2014 Waste Isolation Pilot Plant EPA I.D. Number: NM4890139088-TSDF Jose R. FrancoCBFO and Robert L. McQuinnNWP dated December 5, 2014 WIPP Nitrate Salt...

  1. Next Update: November 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Next Update: November 2013 Table 3B.1. FRCC monthly peak hour demand, by North American Electric Reliability Corporation Assesment Area, 1996-2011 actual, 2012-2013 projected...

  2. Sandy Updates | Department of Energy

    Energy Savers [EERE]

    Press Release Search link to facebook link to twitter Email Signup Sign up for updates Go Search form Search Press Release You are here Home » Sandy Updates Sandy Updates No articles link to facebook link to twitter Email Signup Sign up for updates Go Energy.gov

  3. Electricity Monthly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Methodology and Documentation General The Electricity Monthly Update is prepared by the Electric Power Operations Team, Office of Electricity, Renewables and Uranium Statistics, U.S. Energy Information Administration (EIA), U.S. Department of Energy. Data published in the Electricity Monthly Update are compiled from the following sources: U.S. Energy Information Administration, Form EIA-826,"Monthly Electric Utility Sales and Revenues with State Distributions Report," U.S. Energy

  4. Section 1251 Report Update

    National Nuclear Security Administration (NNSA)

    November 2010 Update to the National Defense Authorization Act of FY2010 Section 1251 Report New START Treaty Framework and Nuclear Force Structure Plans 1. Introduction This paper updates elements of the report that was submitted to Congress on May 13, 2010, pursuant to section 1251 of the National Defense Authorization Act for Fiscal Year 2010 (Public Law 111-84) ("1251 Report"). 2. National Nuclear Security Administration and modernization of the complex - an overview From FY 2005

  5. Updated Cost Analysis of Photobiological Hydrogen Production from Chlamydomonas reinhardtii Green Algae: Milestone Completion Report

    SciTech Connect (OSTI)

    Amos, W. A.

    2004-01-01

    This report updates the 1999 economic analysis of NREL's photobiological hydrogen production from Chlamydomonas reinhardtii. The previous study had looked mainly at incident light intensities, batch cycles and light adsorption without directly attempting to model the saturation effects seen in algal cultures. This study takes a more detailed look at the effects that cell density, light adsorption and light saturation have on algal hydrogen production. Performance estimates based on actual solar data are also included in this study. Based on this analysis, the estimated future selling price of hydrogen produced from algae ranges $0.57/kg to $13.53/kg.

  6. Updated greenhouse gas and criteria air pollutant emission factors and their probability distribution functions for electricity generating units

    SciTech Connect (OSTI)

    Cai, H.; Wang, M.; Elgowainy, A.; Han, J.

    2012-07-06

    Greenhouse gas (CO{sub 2}, CH{sub 4} and N{sub 2}O, hereinafter GHG) and criteria air pollutant (CO, NO{sub x}, VOC, PM{sub 10}, PM{sub 2.5} and SO{sub x}, hereinafter CAP) emission factors for various types of power plants burning various fuels with different technologies are important upstream parameters for estimating life-cycle emissions associated with alternative vehicle/fuel systems in the transportation sector, especially electric vehicles. The emission factors are typically expressed in grams of GHG or CAP per kWh of electricity generated by a specific power generation technology. This document describes our approach for updating and expanding GHG and CAP emission factors in the GREET (Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation) model developed at Argonne National Laboratory (see Wang 1999 and the GREET website at http://greet.es.anl.gov/main) for various power generation technologies. These GHG and CAP emissions are used to estimate the impact of electricity use by stationary and transportation applications on their fuel-cycle emissions. The electricity generation mixes and the fuel shares attributable to various combustion technologies at the national, regional and state levels are also updated in this document. The energy conversion efficiencies of electric generating units (EGUs) by fuel type and combustion technology are calculated on the basis of the lower heating values of each fuel, to be consistent with the basis used in GREET for transportation fuels. On the basis of the updated GHG and CAP emission factors and energy efficiencies of EGUs, the probability distribution functions (PDFs), which are functions that describe the relative likelihood for the emission factors and energy efficiencies as random variables to take on a given value by the integral of their own probability distributions, are updated using best-fit statistical curves to characterize the uncertainties associated with GHG and CAP emissions in life-cycle modeling with GREET.

  7. Microsoft Word - UPDATE 4 - Unit 4.doc

    Office of Environmental Management (EM)

    4 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant Modeling Unit 4 Emissions at Maximum and Minimum Loads ENSR Corporation December 23, 2005 Document Number 10350-002-410 (Update 4) December, 2005 1-1 1.0 INTRODUCTION This report describes dispersion modeling performed for Unit 4 at Mirant's Potomac River Generating Station. The modeling was performed according to the Protocol approved by the Virginia Department of Environmental Quality. The purpose of the

  8. Development and Integration of Genome-Enabled Techniques to Track and Predict the Cycling of Carbon in Model Microbial Communities

    SciTech Connect (OSTI)

    Banfield, Jillian

    2014-11-26

    The primary objective of this project was to establish widely applicable, high-throughput “omics” methods for tracking carbon flow in microbial communities at a strain-resolved molecular level. We developed and applied these methods to study a well-established microbial community model system with a long history of “omics” innovation: chemoautotrophic biofilms grown in an acid mine drainage (AMD) environment. The methods are now being transitioned (in a new project) to study soil. Using metagenomics, stable-isotope proteomics, stable-isotope metabolomics, transcriptomics, and microscopy, we tracked carbon flow during initial biofilm growth involving CO2 fixation, through the maturing biofilm community consisting of multiple trophic levels, and during an anaerobic degradative phase after biofilms sink. This work included explicit consideration of the often overlooked roles of archaea and microbial eukaryotes (fungi) in carbon turnover. We also analyzed where the eosystem begins to fail in response to thermal perturbation, and how perturbation propagates through a carbon cycle. We investigated the form of strain variation in microbial communities, the importance of strain variants, and the rate and form of strain evolution. Overall, the project generated an array of new, integrated ‘omics’ approaches and provided unprecedented insight into the functioning of a natural ecosystem. This project supported graduate training for five Ph.D. students and three post doctoral fellows and contributed directly to at least 26 publications (two in Science).

  9. Method and system to estimate variables in an integrated gasification combined cycle (IGCC) plant

    DOE Patents [OSTI]

    Kumar, Aditya; Shi, Ruijie; Dokucu, Mustafa

    2013-09-17

    System and method to estimate variables in an integrated gasification combined cycle (IGCC) plant are provided. The system includes a sensor suite to measure respective plant input and output variables. An extended Kalman filter (EKF) receives sensed plant input variables and includes a dynamic model to generate a plurality of plant state estimates and a covariance matrix for the state estimates. A preemptive-constraining processor is configured to preemptively constrain the state estimates and covariance matrix to be free of constraint violations. A measurement-correction processor may be configured to correct constrained state estimates and a constrained covariance matrix based on processing of sensed plant output variables. The measurement-correction processor is coupled to update the dynamic model with corrected state estimates and a corrected covariance matrix. The updated dynamic model may be configured to estimate values for at least one plant variable not originally sensed by the sensor suite.

  10. FEMP First Thursday Update Covers Updates to 2016 Federal Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    page. Requires Google Chrome, Firefox 4.0+, Internet Explorer 7.0+ or Safari, and the Adobe Flash 10+ plugin. Addthis Related Articles FEMP First Thursday Update Covers Updates...

  11. Timeline and Updates

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Timeline and Updates Timeline and Updates CDT 16.01 was set to default on Edison on 2/3/2016 February 3, 2016 by Zhengji Zhao The Cray Developer Toolkit (CDT) 16.01 was set to default on 2/3/2016. The following software versions are new default on Edison: Read the full post Edison is back to production in the new facility building January 4, 2016 Edison is back online after about 5 weeks of downtime to move to a new facility building, Wang Hall, at the main Berkeley campus. The following are the

  12. Legislative Update: State and Regional Hydrogen and Fuel Cell Initiatives

    Broader source: Energy.gov (indexed) [DOE]

    Conference Call | Department of Energy Presentation by US Fuel Cell Council on legislative updates to state and regional hydrogen and fuel cell representatives PDF icon usfcc_legislative_update.pdf More Documents & Publications U.S. Fuel Cell Council: The Voice of the Fuel Cell Industry Connecticut Fuel Cell Activities: Markets, Programs, and Models The Hydrogen Tax Incentive Act of 2008

  13. Program Review Updates and Briefings

    Broader source: Energy.gov [DOE]

    You can learn more about the U.S. Department of Energy (DOE) Geothermal Technologies Program by reading its program review updates and program briefings. These updates and briefings feature...

  14. Update on Franklin retirement plans

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Update on Franklin retirement plans Update on Franklin retirement plans February 21, 2012 by Helen He NERSC is making progress on plans to acquire our next major system. Franklin's...

  15. UGE Scheduler Cycle Time

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    UGE Scheduler Cycle Time UGE Scheduler Cycle Time Genepool Cycle Time Genepool Daily Genepool Weekly Phoebe Cycle Time Phoebe Daily Phoebe Weekly What is the Scheduler Cycle? The...

  16. Developing Model Constraints on Northern Extra-Tropical Carbon Cycling Based on measurements of the Abundance and Isotopic Composition of Atmospheric CO2

    SciTech Connect (OSTI)

    Keeling, Ralph

    2014-12-12

    The objective of this project was to perform CO2 data syntheses and modeling activities to address two central questions: 1) how much has the seasonal cycle in atmospheric CO2 at northern high latitudes changed since the 1960s, and 2) how well do prognostic biospheric models represent these changes. This project also supported the continuation of the Scripps time series of CO2 isotopes and concentration at ten baseline stations distributed globally.

  17. Updates and Status

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Status Updates and Status Current Status: Up Carver Email Announcements Archive An archive of email announcements sent to NERSC users regarding Carver. Read More » Timeline Timeline of significant Carver events. Read More » Last edited: 2016-02-01 08:06:28

  18. Updates and Status

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Status Updates and Status Current Status: Up Announcements All recent NERSC announcements affecting Euclid. Read More » Email Announcements Archive An archive of email announcements sent to NERSC users regarding Euclid. Read More » Known Problems All known current problems with Euclid. Read More » Timeline Timeline of significant Euclid events. Read More » Last edited: 2016-02-01 08:06:12

  19. WIPP UPDATE: June 4, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4, 2014 WIPP updates to be published twice a week WIPP recovery efforts are maintaining a steady pace; however, long-term activities are underway that are not as conducive to daily updates. The Department remains committed to transparency, and it is making this change to ensure updates remain meaningful and informative for stakeholders. Updates will now be provided every Tuesday and Friday, or more often if timely news arises. Community meetings scheduled June 5 - The City of Carlsbad and DOE

  20. Program Updates | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Program Updates Program Updates October 8, 2015 Program Update: 3rd Quarter 2015 Inside this Update: Draft LM 2016-2025 Strategic Plan; Applied Studies and Technology: The Third Dimension-Variation in Groundwater Aquifers; Fostering International Discourse; Creating LTS&M Efficiencies While Protecting Human Health and the Environment; LM Business Center Receives Yucca Mountain Licensing Information; 2015 LM All-Hands Training; Ohio and the Manhattan Project; Recycling Building Foundation at

  1. Pebble Bed Reactor review update. Fiscal year 1979 annual report

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    Updated information is presented on the Pebble Bed Reactor (PBR) concept being developed in the Federal Republic of Germany for electricity generation and process heat applications. Information is presented concerning nuclear analysis and core performance, fuel cycle evaluation, reactor internals, and safety and availability.

  2. Monitored Geologic Repository Life Cycle Cost Estimate Assumptions Document

    SciTech Connect (OSTI)

    R. Sweeney

    2000-03-08

    The purpose of this assumptions document is to provide general scope, strategy, technical basis, schedule and cost assumptions for the Monitored Geologic Repository (MGR) life cycle cost estimate and schedule update incorporating information from the Viability Assessment (VA), License Application Design Selection (LADS), 1999 Update to the Total System Life Cycle Cost (TSLCC) estimate and from other related and updated information. This document is intended to generally follow the assumptions outlined in the previous MGR cost estimates and as further prescribed by DOE guidance.

  3. MONITORED GEOLOGIC REPOSITORY LIFE CYCLE COST ESTIMATE ASSUMPTIONS DOCUMENT

    SciTech Connect (OSTI)

    R.E. Sweeney

    2001-02-08

    The purpose of this assumptions document is to provide general scope, strategy, technical basis, schedule and cost assumptions for the Monitored Geologic Repository (MGR) life cycle cost (LCC) estimate and schedule update incorporating information from the Viability Assessment (VA) , License Application Design Selection (LADS), 1999 Update to the Total System Life Cycle Cost (TSLCC) estimate and from other related and updated information. This document is intended to generally follow the assumptions outlined in the previous MGR cost estimates and as further prescribed by DOE guidance.

  4. Soil metagenomics and carbon cycling

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Bioscience: Bioenergy, Biosecurity, and Health » Environmental Microbiology » Soil metagenomics and carbon cycling Soil metagenomics and carbon cycling Establishing a foundational understanding of the microbial and ecosystem factors that control carbon cycling to improve climate modeling and carbon management. Get Expertise Principle Investigator Cheryl Kuske Bioscience Division 505 665 4800 Email Get Expertise John Dunbar Bioscience Division Email Get Expertise Chris Yeager Bioscience

  5. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    nuclear-related curricula. GNEP is part of a President Bush's Advanced Energy Initiative and aims to close the nuclear fuel cycle by reducing proliferation risks, reducing...

  6. Fact #686: August 1, 2011 Emissions and Energy Use Model - GREET |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 6: August 1, 2011 Emissions and Energy Use Model - GREET Fact #686: August 1, 2011 Emissions and Energy Use Model - GREET The Greenhouse Gases, Regulated Emission, and Energy Use in Transportation (GREET) Model is a full life-cycle model for evaluating the energy and emission impacts of various vehicle and fuel combinations. The first version of the GREET model was released in 1996. Since then, the model has been updated and expanded to include additional vehicle types

  7. Sunrayce 97 Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Update For more information contact: Gerald M. Wilson Sunrayce 97 Press Center (810) 665-0092 Indianapolis, Ind., June 17, 1997-- Qualifying for Sunrayce 97 concluded today with 36 teams certified to compete in the event that begins on Thursday, June 19. Taking the pole position is George Washington University. To qualify, each car must pass a battery of safety, electrical, mechanical, and handling/ performance tests that meet stringent safety, operational, and maneuverability requirements. If a

  8. Updates and Status

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Status Updates and Status Current Status: Retired on April 30, 2012 Announcements A list of key Franklin announcements and system changes. Read More » Email Announcements Archive An archive of email announcements sent to NERSC users regarding Franklin. Read More » Franklin Timeline This page records a brief timeline of significant events and user environment changes on Franklin. Read More » Last edited: 2016-02-01 08:06:08

  9. Quality Work Plan Update

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1 | Energy Efficiency and Renewable Energy eere.energy.gov ACI Detroit Quality Work Plan Update April 2014 QWP: Background Culmination of a multi-year investment aimed at demonstrating quality and accountability in the WAP Taking action on lessons learned through various quality assurance reviews Establishing WAP as a national leader in technical resources and quality assurance Improving long term sustainability by building the foundation of the national industry with WAP at the core 2

  10. Renewable Energy Update

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Renewable Energy Update Steve Lindenberg, Senior Advisor June 27, 2012 Message from the President "... I will not walk away from the promise of clean energy. I will not walk away from workers ... I will not cede the wind or solar or battery industry ... It's time ... to double down on a clean energy industry that has never been more promising." - President Obama, State of the Union, 24 January 2012 2 EERE Goals Clean Electricity: 80 percent by 2035 Transportation * Renewable

  11. Village WInd Technology Update

    Energy Savers [EERE]

    Village Wind Technology Update Dennis Meiners Intelligent Energy Systems Alaska Native Village Energy Development Workshop Anchorage, Alaska April 29, 2014 Ideas from the Past * Much more of the prosperity of a winter country depends on the plenty and cheapness of fuel than is generally imagined. In traveling, I have observed, that in those parts where the inhabitants can have neither wood, nor coal nor turf, but at excessive prices, the working people live in miserable hovels, are ragged, and

  12. Alaska Wind Update

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Alaska Wind Update BIA Providers Conference Dec. 2, 2015 Unalakleet wind farm Energy Efficiency First  Make homes, workplaces and communities energy efficient thru weatherization and efficient lighting/appliances.  Because of PCE, residential rate payers won't see as much benefit from a wind farm as do commercial customers.  Once efficient, pursue renewable energy. Otherwise, money is wasted to build an oversized system.  EE makes economic sense - faster payback (2-3 years vs. 15-20

  13. Electricity Monthly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Contact Information and Staff The Electricity Monthly Update is prepared by the Electric Power Operations Team, Office of Electricity, Renewables and Uranium Statistics, U.S. Energy Information Administration (EIA), U.S. Department of Energy. Editorial Lead: Chris Cassar (christopher.cassar@eia.gov) Senior Adviser: Bill Booth Core Team: Paul McCardle, Glenn McGrath, Stephen Scott, Tim Shear, April Lee

  14. UPdate THE NE

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    UPdate THE NE January 2014 Edition U.S. Department of Energy's Nuclear Energy University Programs It's not every day graduate students get to meet one of nuclear energy's most important decision makers. Integrated University Program (IUP) Fellows had this opportunity at the 2013 Winter American Nuclear Society (ANS) Meeting this past November in Washington, D.C. Department of Energy Assistant Secretary for Nuclear Energy, Dr. Pete Lyons, greeted IUP Fellows in a special meeting to discuss

  15. Roadmap Update Workshop Summaries

    Energy Savers [EERE]

    Energy Delivery Systems Roadmap to Secure Energy Delivery Systems - i - Roadmap Development Process hile much progress has been made, the public and private partners are keenly aware that there is more work to do with today's rapid pace of change and dynamic energy delivery systems landscape. The Energy Sector Control Systems Working Group (ESCSWG) collaborated with energy sector stakeholders to update the Roadmap in four phases: ï‚· Over-the-Horizon Analysis: On July 7, 2009, nearly 20 asset

  16. PVQAT TG2 Update

    SciTech Connect (OSTI)

    Bosco, N.

    2015-02-24

    Thermal and mechanical fatigue: What are the appropriate number of thermal cycles for a long-term reliability test? Should this number be climate specific? What is the effect and appropriate level of DML testing?

  17. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update (EIA)

    325,000 Dth per day. Additionally, 25,000 Dth per day of capacity will be available for park and loan. The new capacity was effective with the cycle 1 gas day August 2 and is...

  18. Electricity Monthly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    not necessarily coincide with the beginning and the end of months. For example, retail revenue and sales data reported in July reflects data for billing cycles that end sometime...

  19. NEPA Updates | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    NEPA Updates NEPA Updates Subscribe to DOE NEPA - Latest Documents and Notices Subscribe to DOE NEPA News The Office of NEPA Policy and Compliance maintains two notification services which provide you with updates for both: DOE NEPA News - which includes general announcements, and DOE NEPA - Latest Documents and Notices - which includes new project documents and notices posted on this website. You can subscribe to either or both of these services by clicking on panels or links above.

  20. GREET Development and Applications for Life-Cycle Analysis of...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Fuel-Cycle Energy and Emissions Analysis with the GREET Model Vehicle Technologies Office Merit Review 2015: Emissions Modeling: GREET Life Cycle...

  1. DOE Wind Program Update

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Wind Program Update March 2007 P.J. Dougherty Wind and Hydropower Technologies Program Since the 1970's, DOE has spent just over $1B in developing a market, which will reach over $4B in commercial investment in 2006 alone. Energy Efficiency & Renewable Energy Program works closely with industry to provide the market transformation support and R&D needed to drive wind development. Motivating Factors * U.S. Energy Demand to Increase 40%+ over next 25 Years * $Billions investment required *

  2. NERSC Data Efforts Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Data Efforts Update --- 1 --- Prabhat Data and Analytics Group Lead February 23, 2015 A little bit about myself * Computer S cien.st - Brown, I IT D elhi * Real---3me G raphics, V irtual R eality, H CI - Computa3onal R esearch D ivision * Scien3fic V isualiza3on, H PC * Data M anagement, P arallel I /O * Sta3s3cs, M achine L earning, B ig D ata * Climate S cien.st - Pursuing P hD i n U C B erkeley w / B ill C ollins * Broadly i nterested i n: - Physics ( Par3cle P hysics, A stronomy) - Chemistry

  3. Next Update: October 2009

    U.S. Energy Information Administration (EIA) Indexed Site

    7 Released: February 2009 Next Update: October 2009 Table 3a . January Monthly Peak Hour Demand, Actual and Projected by North American Electric Reliability Corporation Region (Megawatts and 2007 Base Year) Texas Power Grid Western Power Grid FRCC MRO NPCC RFC SERC SPP TRE (ERCOT) WECC Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) 2007 613,068

  4. Next Update: October 2010

    U.S. Energy Information Administration (EIA) Indexed Site

    January 2010 Next Update: October 2010 Table 3a . January Monthly Peak Hour Demand, Actual and Projected by North American Electric Reliability Corporation Region, (Megawatts and 2008 Base Year) Texas Power Grid Western Power Grid FRCC MRO NPCC RFC SERC SPP TRE WECC Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) Peak Hour Demand (MW) 2008 635,911 41,705 34,462 46,803

  5. Community Relations Plan Update

    Office of Legacy Management (LM)

    8-TAR MAC-MRAP 1.9.1 Monticello Mill Tailings Superfund Site and Monticello Vicinity Properties Superfund Site Monticello, Utah Community Relations Plan Update FY 2001 Prepared for U.S. Department of Energy Albuquerque Operations Office Grand Junction Office Prepared by MACTEC Environmental Restoration Services, LLC Grand Junction, Colorado Work performed under DOE Contract No. DE-AC13-96GJ87335 for the U.S. Department of Energy For more information or to request additional copies of this

  6. Progress Update: TRU Waste Shipping

    ScienceCinema (OSTI)

    Cody, Tom

    2012-06-14

    A progress update at the Savannah River Site. A continued effort on shipping TRU waste to WIPP in Carlsbad, New Mexico.

  7. CASL - Radiation Transport Methods Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Radiation Transport Methods Update The Radiation Transport Methods (RTM) focus area is responsible for the development of methods, algorithms, and implementations of radiation...

  8. Better Plants Progress Update 2014

    Broader source: Energy.gov [DOE]

    The 2014 Progress Update details Better Buildings, Better Plants Program accomplishments, including new partners, new initiatives, and energy and cost savings experienced by partners.

  9. WIPP UPDATE: June 6, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    high daytime temperatures and is scheduled to begin next week. CBFO Manager's weekly update to local residents Read Carlsbad Field Office Manager Joe Franco's letter to Eddy and...

  10. Energy Department Releases Updates to EnergyPlus and OpenStudio

    Broader source: Energy.gov [DOE]

    The Energy Department has released updates to its twin building energy modeling software products—EnergyPlus and OpenStudio.

  11. DOE Releases Updated Versions of EnergyPlus and OpenStudio | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy DOE Releases Updated Versions of EnergyPlus and OpenStudio DOE Releases Updated Versions of EnergyPlus and OpenStudio September 30, 2015 - 4:24pm Addthis DOE Releases Updated Versions of EnergyPlus and OpenStudio Amir Roth, Ph.D. Amir Roth, Ph.D. Technology Manager, Building Technologies Office With the end of fiscal year 2015 approaching, DOE is releasing updates to its flagship building energy modeling software products. EnergyPlus 8.4.0 is the second update released this year;

  12. Argonne's Michael Wang talks about the GREET Model for reducing vehicle emi

    ScienceCinema (OSTI)

    Michael Wang

    2013-06-05

    To fully evaluate energy and emission impacts of advanced vehicle technologies and new transportation fuels, the fuel cycle from wells to wheels and the vehicle cycle through material recovery and vehicle disposal need to be considered. Sponsored by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE), Argonne has developed a full life-cycle model called GREET (Greenhouse gases, Regulated Emissions, and Energy use in Transportation). It allows researchers and analysts to evaluate various vehicle and fuel combinations on a full fuel-cycle/vehicle-cycle basis. The first version of GREET was released in 1996. Since then, Argonne has continued to update and expand the model. The most recent GREET versions are the GREET 1 2012 version for fuel-cycle analysis and GREET 2.7 version for vehicle-cycle analysis.

  13. Consent Order Update | Department of Energy

    Office of Environmental Management (EM)

    Consent Order Update Consent Order Update Topic: Pete Maggiore DOE, Provided Information on the Consent Order Work that Needs to be Completed. Information on the Fiscal Year Work Plan was also Provided. PDF icon Consent Order Update - September 24, 2014 More Documents & Publications Fiscal Year 2015 Annual Work Plan Update Fiscal Year 2014 Budget Update Fiscal Year 2014 and Fiscal Year 2015 Budget Update

  14. Microsoft Word - UPDATE 2 - Unit 1.doc

    Office of Environmental Management (EM)

    2 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant Modeling Unit 1 Emissions at Maximum and Minimum Loads ENSR Corporation December 20, 2005 Document Number 10350-002-410 (Update 2) December, 2005 1-1 1.0 INTRODUCTION This report describes AERMOD modeling results performed for Unit 1 at Mirant's Potomac River Generating Station. The purpose of these runs was to demonstrate that operation of Unit 1 for 24 hours a day at loads from 35 MW to 88 MW with the use

  15. Next Update: November 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Next Update: November 2013 megawatts January NERC Regional Assesment Area 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 FRCC 39,860 37,127 27,122 38,581 37,521 40,258 39,675 45,033 35,545 41,247 34,464 38,352 41,705 44,945 53,093 46,086 NPCC 41,680 41,208 40,009 44,199 45,227 43,553 42,039 45,987 66,215 47,041 43,661 45,002 46,803 45,047 43,849 45,395 Balance of Eastern Region 322,095 335,954 307,784 343,981 347,724 349,937 340,525 377,419 371,550 381,698

  16. Updates - DOE Directives, Delegations, and Requirements

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Updates by Diane Johnson Email Alerts Subscribe to automatic e-mail notification about updates to the portal. Email Alerts Document Actions...

  17. Updated Cost Analysis of Photobiological Hydrogen Production...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Updated Cost Analysis of Photobiological Hydrogen Production from Chlamydomonas reinhardtii Green Algae: Milestone Completion Report This report updates the 1999 economic analysis ...

  18. Generation IV International Forum Updates Technology Roadmap...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Generation IV International Forum Updates Technology Roadmap and Builds Future Collaboration Generation IV International Forum Updates Technology Roadmap and Builds Future ...

  19. Energy Storage Systems 2010 Update Conference Presentations ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon ESS 2010 Update Conference - Li Conducting Solid State Electrolyte by Sol Gel Technique - Davorin Babic, Excellatron Solid State.pdf PDF icon ESS 2010 Update ...

  20. Building America Residential Energy Efficiency Technical Update...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technical Update Meeting: August 2011 Building America Residential Energy Efficiency Technical Update Meeting: August 2011 On this page, you may link to the summary report and ...

  1. Industrial Assessment Centers Update, March 2015 | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Read the Industrial Assessment Centers (IAC) Update -- March 2015 Industrial Assessment Centers Quarterly Update, March 2015 More Documents & Publications Industrial Assessment...

  2. SHARP Physics Modules Updated | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Physics Modules Updated SHARP Physics Modules Updated January 29, 2013 - 12:37pm Addthis PROTEUS Development The SHARP neutronics module, PROTEUS, includes neutron and gamma ...

  3. Associate Directorate for Environmental Programs Update September...

    Office of Environmental Management (EM)

    Programs Update September 24, 2014 Topics: RDX Well Installation Lifecycle Baseline Sediment Sampling Water Sampling IP Permit Status Field Work PDF icon ADEP Update - September...

  4. Keynote Address: Update on Environmental Management | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Address: Update on Environmental Management Keynote Address: Update on Environmental Management Keynote presentation made by David G. Huizenga for the NTSF annual meeting held from...

  5. EPA Diesel Update | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Diesel Update EPA Diesel Update 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005deercharmley.pdf More Documents & Publications EPA...

  6. Associate Directorate for Environmental Programs Update January...

    Office of Environmental Management (EM)

    January 28, 2015 Associate Directorate for Environmental Programs Update January 28, 2015 Topics: Update on Nitrate Salts Chromium Remediation Project MDA L Soil Vapor Extraction...

  7. Development and Testing of a Life Cycle Model and a Parameterization of Thin Mid-level Stratiform Clouds

    SciTech Connect (OSTI)

    Krueger, Steven K.

    2008-03-03

    We used a cloud-resolving model (a detailed computer model of cloud systems) to evaluate and improve the representation of clouds in global atmospheric models used for numerical weather prediction and climate modeling. We also used observations of the atmospheric state, including clouds, made at DOE's Atmospheric Radiation Measurement (ARM) Program's Climate Research Facility located in the Southern Great Plains (Kansas and Oklahoma) during Intensive Observation Periods to evaluate our detailed computer model as well as a single-column version of a global atmospheric model used for numerical weather prediction (the Global Forecast System of the NOAA National Centers for Environmental Prediction). This so-called Single-Column Modeling approach has proved to be a very effective method for testing the representation of clouds in global atmospheric models. The method relies on detailed observations of the atmospheric state, including clouds, in an atmospheric column comparable in size to a grid column used in a global atmospheric model. The required observations are made by a combination of in situ and remote sensing instruments. One of the greatest problems facing mankind at the present is climate change. Part of the problem is our limited ability to predict the regional patterns of climate change. In order to increase this ability, uncertainties in climate models must be reduced. One of the greatest of these uncertainties is the representation of clouds and cloud processes. This project, and ARM taken as a whole, has helped to improve the representation of clouds in global atmospheric models.

  8. DRAFT EM SSAB Chair's Meeting Waste Disposition Strategies Update

    Office of Environmental Management (EM)

    Isolation Pilot Plant Update J.R. Stroble, CBFO For the Northern New Mexico Citizens Advisory Board January 27, 2016 www.energy.gov/EM 2 Corrective Actions The DOE TRU Waste Complex has implemented several changes since the 2014 radiological release incident at WIPP. Based on the Accident Investigation Report and subsequent evaluations, DOE has implemented several Corrective Actions that will prevent such incidents from occurring throughout the Life Cycle of WIPP. Five organizations have

  9. Subscribe to Geothermal Technologies Office Updates | Department of Energy

    Energy Savers [EERE]

    Subscribe to Geothermal Technologies Office Updates Subscribe to Geothermal Technologies Office Updates

  10. Analysis of Potential Benefits and Costs of Updating the Commercial Building Energy Code in North Dakota

    SciTech Connect (OSTI)

    Cort, Katherine A.; Belzer, David B.; Winiarski, David W.; Richman, Eric E.

    2004-04-30

    The state of North Dakota is considering updating its commercial building energy code. This report evaluates the potential costs and benefits to North Dakota residents from updating and requiring compliance with ASHRAE Standard 90.1-2001. Both qualitative and quantitative benefits and costs are assessed in the analysis. Energy and economic impacts are estimated using the Building Loads Analysis and System Thermodynamics (BLAST simulation combined with a Life-cycle Cost (LCC) approach to assess correspodning economic costs and benefits.

  11. Progress on an Updated National Solar Radiation Data Base: Preprint

    SciTech Connect (OSTI)

    Wilcox, S.; Anderberg, M.; George, R.; Marion, W.; Myers, D.; Renne, D.; Beckman, W.; DeGaetano, A.; Gueymard, C.; Perez, R.; Plantico, M.; Stackhouse, P.; Vignola, F.

    2004-03-01

    In 1992, The National Renewable Energy Laboratory (NREL) released the 1961-1990 National Solar Radiation Data Base (NSRDB), a 30-year set of hourly solar radiation data. In April 2003, NREL convened a meeting of experts to investigate issues concerning a proposed update of the NSRDB. The panel determined that an important difficulty posed by the update was the shift from manual to automated cloud observations at National Weather Service stations in the United States. The solar model used in the original NSRDB relied heavily on the methodology and resolution of the manual cloud observations. The meeting participants recommended that NREL produce a plan for creating an update using currently available meteorological observations and satellite imagery. This paper describes current progress toward a plan for an updated NSRDB.

  12. The watershed-scale optimized and rearranged landscape design (WORLD) model and local biomass processing depots for sustainable biofuel production: Integrated life cycle assessments

    SciTech Connect (OSTI)

    Eranki, Pragnya L.; Manowitz, David H.; Bals, Bryan D.; Izaurralde, Roberto C.; Kim, Seungdo; Dale, Bruce E.

    2013-07-23

    An array of feedstock is being evaluated as potential raw material for cellulosic biofuel production. Thorough assessments are required in regional landscape settings before these feedstocks can be cultivated and sustainable management practices can be implemented. On the processing side, a potential solution to the logistical challenges of large biorefi neries is provided by a network of distributed processing facilities called local biomass processing depots. A large-scale cellulosic ethanol industry is likely to emerge soon in the United States. We have the opportunity to influence the sustainability of this emerging industry. The watershed-scale optimized and rearranged landscape design (WORLD) model estimates land allocations for different cellulosic feedstocks at biorefinery scale without displacing current animal nutrition requirements. This model also incorporates a network of the aforementioned depots. An integrated life cycle assessment is then conducted over the unified system of optimized feedstock production, processing, and associated transport operations to evaluate net energy yields (NEYs) and environmental impacts.

  13. Gearbox Reliability Collaborative Update: A Brief (Presentation)

    SciTech Connect (OSTI)

    Sheng, S.; Keller, J.; McDade, M.

    2012-01-01

    This presentation is an update on the Gearbox Reliability Collaborative (GRC) for the AWEA Wind Project Operations, Maintenance & Reliability Seminar. GRC accomplishments are: (1) Failure database software deployed - partners see business value for themselves and customers; (2) Designed, built, instrumented, and tested two gearboxes - (a) Generated unprecedented public domain test data from both field testing and dynamometer testing, (b) Different responses from 'identical' gearboxes, (c) Demonstrated importance of non-torque loading and modeling approach; and (3) Active collaborative, with wide industry support, leveraging DOE funding - Modeling round robin and Condition Monitoring round robin.

  14. Progress Update: M Area Closure

    ScienceCinema (OSTI)

    Cody, Tom

    2012-06-14

    A progress update of the Recovery Act at work at the Savannah River Site. The celebration of the first area cleanup completion with the help of the Recovery Act.

  15. Building America Update- August 2013

    Broader source: Energy.gov [DOE]

    Building America Update is the monthly online newsletter for the U.S. Department of Energy Building America program. This page links to a pdf of the August 2013 newsletter.

  16. BPA Wind Integration Team Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    BPA Wind Integration Team Update Customer Supplied Generation Imbalance (CSGI) Pilot Transmission Services Customer Forum 29 July 28, 2010 B O N N E V I L L E P O W E R A D M I N...

  17. Building America Update- March 2013

    Broader source: Energy.gov [DOE]

    Building America Update is the monthly online newsletter for the U.S. Department of Energy Building America program. This page links to a pdf of the March 2013 newsletter

  18. Building America Update- November 2013

    Broader source: Energy.gov [DOE]

    Building America Update is the monthly online newsletter for the U.S. Department of Energy Building America program. This page links to a pdf of the November 2013 newsletter.

  19. Building America Update- December 2013

    Broader source: Energy.gov [DOE]

    Building America Update is the monthly online newsletter for the U.S. Department of Energy Building America program. This page links to a pdf of the December 2013 newsletter.

  20. Gearbox Reliability Collaborative Update (Presentation)

    SciTech Connect (OSTI)

    Sheng, S.

    2013-10-01

    This presentation was given at the Sandia Reliability Workshop in August 2013 and provides information on current statistics, a status update, next steps, and other reliability research and development activities related to the Gearbox Reliability Collaborative.

  1. Sign Up For Email Updates

    Broader source: Energy.gov [DOE]

    Be the first to know of the latest developments from the Energy.gov team -- from videos to infographics to live Q&A’s -- by signing up for email updates.

  2. DOE Loan Programs Office Update

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    OW IN THIS UPDATE: JUNE 2015 DOE ISSUES 1.8 BILLION IN NUCLEAR LOAN GUARANTEES LPO ISSUES ... Office after more than two years of service to return to his home and family in New York. ...

  3. Building America Update- September 2013

    Broader source: Energy.gov [DOE]

    Building America Update is the monthly online newsletter for the U.S. Department of Energy Building America program. This page links to a pdf of the September 2013 newsletter.

  4. WIPP UPDATE: April 6, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    6, 2014 There is not a WIPP Recovery update today. Please go to the WIPP Recovery webpage at www.wipp.energy.gov for information on recent recovery activities. Community Meetings...

  5. WIPP UPDATE: May 19, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    obtain pictures further down along the sides of the waste stack. CBFO Manager's Weekly Update to Local Residents Read Carlsbad Field Office Manager Joe Franco's letter to Eddy and...

  6. WIPP UPDATE: June 10, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    during the change-out. Community meetings scheduled Today - A WIPP Recovery Update will be provided to the Eunice City Council at 5:30 p.m. today. Location: Eunice City...

  7. WIPP UPDATE: August 22, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Energy's Carlsbad Field Office and the City of Carlsbad host a Town Hall meeting to update the community and interested stakeholders on the WIPP Recovery progress. A replay of...

  8. WIPP UPDATE: May 14, 2014

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    meetings can be seen at http:new.livestream.comrrv. May 20 - A WIPP Recovery update will be provided at the Economic Development Corporation of Lea County Annual Meeting....

  9. Fuel cycle cost uncertainty from nuclear fuel cycle comparison

    SciTech Connect (OSTI)

    Li, J.; McNelis, D.; Yim, M.S.

    2013-07-01

    This paper examined the uncertainty in fuel cycle cost (FCC) calculation by considering both model and parameter uncertainty. Four different fuel cycle options were compared in the analysis including the once-through cycle (OT), the DUPIC cycle, the MOX cycle and a closed fuel cycle with fast reactors (FR). The model uncertainty was addressed by using three different FCC modeling approaches with and without the time value of money consideration. The relative ratios of FCC in comparison to OT did not change much by using different modeling approaches. This observation was consistent with the results of the sensitivity study for the discount rate. Two different sets of data with uncertainty range of unit costs were used to address the parameter uncertainty of the FCC calculation. The sensitivity study showed that the dominating contributor to the total variance of FCC is the uranium price. In general, the FCC of OT was found to be the lowest followed by FR, MOX, and DUPIC. But depending on the uranium price, the FR cycle was found to have lower FCC over OT. The reprocessing cost was also found to have a major impact on FCC.

  10. Updated estimation of energy efficiencies of U.S. petroleum refineries.

    SciTech Connect (OSTI)

    Palou-Rivera, I.; Wang, M. Q.

    2010-12-08

    Evaluation of life-cycle (or well-to-wheels, WTW) energy and emission impacts of vehicle/fuel systems requires energy use (or energy efficiencies) of energy processing or conversion activities. In most such studies, petroleum fuels are included. Thus, determination of energy efficiencies of petroleum refineries becomes a necessary step for life-cycle analyses of vehicle/fuel systems. Petroleum refinery energy efficiencies can then be used to determine the total amount of process energy use for refinery operation. Furthermore, since refineries produce multiple products, allocation of energy use and emissions associated with petroleum refineries to various petroleum products is needed for WTW analysis of individual fuels such as gasoline and diesel. In particular, GREET, the life-cycle model developed at Argonne National Laboratory with DOE sponsorship, compares energy use and emissions of various transportation fuels including gasoline and diesel. Energy use in petroleum refineries is key components of well-to-pump (WTP) energy use and emissions of gasoline and diesel. In GREET, petroleum refinery overall energy efficiencies are used to determine petroleum product specific energy efficiencies. Argonne has developed petroleum refining efficiencies from LP simulations of petroleum refineries and EIA survey data of petroleum refineries up to 2006 (see Wang, 2008). This memo documents Argonne's most recent update of petroleum refining efficiencies.

  11. Truck Duty Cycle and Performance Data Collection and Analysis...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion Truck Duty Cycle and Performance Data Collection and Analysis Program 2010 ...

  12. Truck Duty Cycle and Performance Data Collection and Analysis...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Truck Duty Cycle and Performance Data Collection and Analysis Program Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion ...

  13. Building America Update Newsletter | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Residential Buildings » Building America » News & Events » Building America Update Newsletter Building America Update Newsletter Building America Update Newsletter Welcome to the Building America Update, a monthly newsletter. Read this month's feature story, or select the other newsletter topics below for more information. You can also Subscribe to receive the email version of Building America Update or browse newsletter archives. Feature Story This Year in Building America: Our Favorite

  14. Differences in carbon cycle and temperature projections from emission- and concentration-driven earth system model simulations

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Shao, P.; Zeng, X.; Zeng, X.

    2014-08-29

    The influence of prognostic and prescribed atmospheric CO2 concentrations ([CO2]) on the carbon uptake and temperature is investigated using all eight Earth System Models (ESMs) with relevant output variables from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Under the RCP8.5 scenario, the projected [CO2] differences in 2100 vary from -19.7 to +207.3 ppm in emission-driven ESMs. Incorporation of the interactive concentrations also increases the range of global warming, computed as the 20 year average difference between 2081–2100 and 1850–1869/1861–1880, by 49% from 2.36 K (i.e. ranging from 3.11 to 5.47 K) in the concentration-driven simulations to 3.51 K inmore »the emission-driven simulations. The observed seasonal amplitude of global [CO2] from 1980–2011 is about 1.2–5.3 times as large as those from the eight emission-driven ESMs, while the [CO2] seasonality is simply neglected in concentration-driven ESMs, suggesting the urgent need of ESM improvements in this area. The temperature-concentration feedback parameter ? is more sensitive to [CO2] (e.g. during 1980–2005 versus 2075–2100) than how [CO2] is handled (i.e. prognostic versus prescribed). This sensitivity can be substantially reduced by using a more appropriate parameter ?' computed from the linear regression of temperature change versus that of the logarithm of [CO2]. However, the inter-model relative variations of both ? and ?' remain large, suggesting the need of more detailed studies to understand and hopefully reduce these discrepancies.« less

  15. FEMP First Thursday Update Covers Updates to 2016 Federal Energy and Water

    Office of Environmental Management (EM)

    Management Awards Criteria | Department of Energy Update Covers Updates to 2016 Federal Energy and Water Management Awards Criteria FEMP First Thursday Update Covers Updates to 2016 Federal Energy and Water Management Awards Criteria January 7, 2016 - 1:26pm Addthis FEMP First Thursday Update Covers Updates to 2016 Federal Energy and Water Management Awards Criteria The U.S. Department of Energy's Federal Energy Management Program (FEMP) will present 2016 Federal Energy and Water Management

  16. PSRP SC Updated

    Broader source: Energy.gov (indexed) [DOE]

    ... 4.4 3. Characteristics Types of Financial Awards to be used B - Project Grants C - ... increase experimental measurements for comparisons with theory and computational models. ...

  17. UGE Scheduler Cycle Time

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    UGE Scheduler Cycle Time UGE Scheduler Cycle Time Genepool Cycle Time Genepool Daily Genepool Weekly Phoebe Cycle Time Phoebe Daily Phoebe Weekly What is the Scheduler Cycle? The Univa Grid Engine Scheduler cycle performs a number of important tasks, including: Prioritizing Jobs Reserving Resources for jobs requesting more resources (slots / memory) Dispatching jobs or tasks to the compute nodes Evaluating job dependencies The "cycle time" is the length of time it takes the scheduler

  18. Updated U.S. Geothermal Supply Characterization

    SciTech Connect (OSTI)

    Petty, S.; Porro, G.

    2007-03-01

    This paper documents the approach taken to characterize and represent an updated assessment of U.S. geothermal supply for use in forecasting the penetration of geothermal electrical generation in the National Energy Modeling System (NEMS). This work is motivated by several factors: The supply characterization used as the basis of several recent U.S. Department of Energy (DOE) forecasts of geothermal capacity is outdated; additional geothermal resource assessments have been published; and a new costing tool that incorporates current technology, engineering practices, and associated costs has been released.

  19. Industrial Assessment Centers (IAC) Update -- July 2015 | Department...

    Office of Environmental Management (EM)

    Industrial Assessment Centers (IAC) Update -- July 2015 Industrial Assessment Centers (IAC) Update -- July 2015 Read the Industrial Assessment Centers (IAC) Update -- July 2015...

  20. 2008 EPA CHP Partnership Update | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    08 EPA CHP Partnership Update 2008 EPA CHP Partnership Update 2008 EPA CHP Partnership Update PDF icon meeting52508ruiz.pdf More Documents & Publications The International CHP...

  1. Microsoft Word - EIR SOP Updated 101110 frank clean | Department...

    Energy Savers [EERE]

    Word - EIR SOP Updated 101110 frank clean Microsoft Word - EIR SOP Updated 101110 frank clean Microsoft Word - EIR SOP Updated 101110 frank clean More Documents & Publications EIR...

  2. POLICY FLASH 2014-10 UPDATE TO CONGRESSIONAL NOTIFICATION_ FULL...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    0 UPDATE TO CONGRESSIONAL NOTIFICATION FULL IMPLEMENTATION OF ANA SYSTEM POLICY FLASH 2014-10 UPDATE TO CONGRESSIONAL NOTIFICATION FULL IMPLEMENTATION OF ANA SYSTEM An updated ...

  3. Waste Isolation Pilot Plant Update | Department of Energy

    Office of Environmental Management (EM)

    Update Waste Isolation Pilot Plant Update PDF icon Waste Isolation Pilot Plant Update More Documents & Publications Transuranic Package Transporter (TRUPACT-III) Content Codes...

  4. Directives Quarterly Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    July 2014 DOE G 415.1-1, Information Technology Project Execution Model Guide - The guide was developed in support of DOE O 415.1 to assist IT Program and Project...

  5. DOE Loan Programs Office Update

    Energy Savers [EERE]

    P E N S O L I C I TAT I O N S | A P P LY N O W IN THIS UPDATE: FEBRUARY 2015 SUPPORTING THE AMERICAN AUTO INDUSTRY UPDATED ATVM LOAN PROGRAM GUIDANCE NEW GREENHOUSE GAS EMISSIONS WORKSHEET CURRENT OPEN SOLICITATIONS SUPPORTING THE FUTURE OF THE AMERICAN AUTO INDUSTRY Last month, President Obama underscored the importance of innovation in the American auto industry during his visit to one of the many factories upgraded with a $5.9 billion loan to the Ford Motor Company through the Advanced

  6. Update on Franklin retirement plans

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Update on Franklin retirement plans Update on Franklin retirement plans February 21, 2012 by Helen He NERSC is making progress on plans to acquire our next major system. Franklin's retirement is necessary to prepare the machine room for the new system. At this point in our planning we can say that Franklin will retire no sooner than April 30. Additional announcements will be made with more details when a firm date is set. If you are currently only using Franklin you should start migrating to

  7. Energy Storage Systems 2010 Update Conference Presentations ...

    Broader source: Energy.gov (indexed) [DOE]

    PDF icon ESS 2010 Update Conference - NYSERDA-DOE Joint Energy Storage Initiative - Georgianne Huff, SNL.pdf PDF icon ESS 2010 Update Conference - Testing and Evaluation of Energy ...

  8. Energy Storage Systems 2010 Update Conference Presentations ...

    Energy Savers [EERE]

    1 Energy Storage Systems 2010 Update Conference Presentations - Day 1, Session 1 The U.S. DOE Energy Storage Systems Program (ESS) conducted a record-breaking Update Conference at ...

  9. Energy Storage Systems 2010 Update Conference Presentations ...

    Energy Savers [EERE]

    3 Energy Storage Systems 2010 Update Conference Presentations - Day 3, Session 3 The U.S. DOE Energy Storage Systems Program (ESS) conducted a record-breaking Update Conference at ...

  10. Energy Storage Systems 2010 Update Conference Presentations ...

    Broader source: Energy.gov (indexed) [DOE]

    - Hawk Asgeirsson, DTE.pdf PDF icon ESS 2010 Update Conference - Compressed Air Energy Storage (CAES) - Hal LaFlash, PG&E.pdf PDF icon ESS 2010 Update Conference - Isothermal ...

  11. Energy Storage Systems 2010 Update Conference Presentations ...

    Office of Environmental Management (EM)

    4 Energy Storage Systems 2010 Update Conference Presentations - Day 2, Session 4 The U.S. DOE Energy Storage Systems Program (ESS) conducted a record-breaking Update Conference at ...

  12. Energy Storage Systems 2010 Update Conference Presentations ...

    Office of Environmental Management (EM)

    2 Energy Storage Systems 2010 Update Conference Presentations - Day 2, Session 2 The U.S. DOE Energy Storage Systems Program (ESS) conducted a record-breaking Update Conference at ...

  13. Progress Update: Stack Project Complete

    ScienceCinema (OSTI)

    Cody, Tom

    2012-06-14

    Progress update from the Savannah River Site. The 75 foot 293 F Stack, built for plutonium production, was cut down to size in order to prevent injury or release of toxic material if the structure were to collapse due to harsh weather.

  14. Competitive Electricity Prices: An Update

    Reports and Publications (EIA)

    1998-01-01

    Illustrates a third impact of the move to competitive generation pricing -- the narrowing of the range of prices across regions of the country. This feature article updates information in Electricity Prices in a Competitive Environment: Marginal Cost Pricing of Generation Services and Financial Status of Electric Utilities.

  15. Wind turbine reliability database update.

    SciTech Connect (OSTI)

    Peters, Valerie A.; Hill, Roger Ray; Stinebaugh, Jennifer A.; Veers, Paul S.

    2009-03-01

    This report documents the status of the Sandia National Laboratories' Wind Plant Reliability Database. Included in this report are updates on the form and contents of the Database, which stems from a fivestep process of data partnerships, data definition and transfer, data formatting and normalization, analysis, and reporting. Selected observations are also reported.

  16. Newsletters and Updates | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    News » Newsletters and Updates Newsletters and Updates These newsletters and email news updates provide information on various news, projects, and activities within EERE. Energy Efficiency and Renewable Energy News EERE Network News EERE Network News is the Office of Energy Efficiency and Renewable Energy's weekly e-newsletter that covers national and international energy efficiency and renewable energy news and events, as well as EERE website updates and energy facts. Subscribe EERE News EERE

  17. 2013 Planning Cycle

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Projects Expand Projects Skip navigation links Ancillary and Control Area Services (ACS) Practices Forum Attachment K 2015 Planning Cycle 2014 Planning Cycle 2013 Planning...

  18. 2014 Planning Cycle

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Projects Expand Projects Skip navigation links Ancillary and Control Area Services (ACS) Practices Forum Attachment K 2015 Planning Cycle 2014 Planning Cycle 2013 Planning...

  19. 2015 Planning Cycle

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Projects Expand Projects Skip navigation links Ancillary and Control Area Services (ACS) Practices Forum Attachment K 2015 Planning Cycle 2014 Planning Cycle 2013 Planning...

  20. Simulation of annual biogeochemical cycles of nutrient balance, phytoplankton bloom(s), and DO in Puget Sound using an unstructured grid model

    SciTech Connect (OSTI)

    Khangaonkar, Tarang; Sackmann, Brandon S.; Long, Wen; Mohamedali, Teizeen; Roberts, Mindy

    2012-08-14

    Nutrient pollution from rivers, nonpoint source runoff, and nearly 100 wastewater discharges is a potential threat to the ecological health of Puget Sound with evidence of hypoxia in some basins. However, the relative contributions of loads entering Puget Sound from natural and anthropogenic sources, and the effects of exchange flow from the Pacific Ocean are not well understood. Development of a quantitative model of Puget Sound is thus presented to help improve our understanding of the annual biogeochemical cycles in this system using the unstructured grid Finite Volume Coastal Ocean Model (FVCOM) framework and the Integrated Compartment Model (CE QUAL-ICM) water quality kinetics. Results based on 2006 data show that phytoplankton growth and die-off, succession between two species of algae, nutrient dynamics, and dissolved oxygen in Puget Sound are strongly tied to seasonal variation of temperature, solar radiation, and the annual exchange and flushing induced by upwelled Pacific Ocean waters. Concentrations in the mixed outflow surface layer occupying approximately 5?20 m of the upper water column show strong effects of eutrophication from natural and anthropogenic sources, spring and summer algae blooms, accompanied by depleted nutrients but high dissolved oxygen levels. The bottom layer reflects dissolved oxygen and nutrient concentrations of upwelled Pacific Ocean water modulated by mixing with biologically active surface outflow in the Strait of Juan De Fuca prior to entering Puget Sound over the Admiralty Inlet. The effect of reflux mixing at the Admiralty Inlet sill resulting in lower nutrient and higher dissolved oxygen levels in bottom waters of Puget Sound than the incoming upwelled Pacific Ocean water is reproduced. By late winter, with the reduction in algal activity, water column constituents of interest, were renewed and the system appeared to reset with cooler temperature, higher nutrient, and higher dissolved oxygen waters from the Pacific Ocean.

  1. WIPP Status Update | Department of Energy

    Office of Environmental Management (EM)

    Status Update WIPP Status Update Presentation made by Bill Mackie for the NTSF annual meeting held from May 14-16, 2013 in Buffalo, NY. PDF icon WIPP Status Update More Documents & Publications EIS-0026-SA-08: Supplemental Analysis Contact-Handled Transuranic Waste Authorized Methods for Payload Control (CH TRAMPAC) Central Characterization Program (CCP) Transuranic Authorized Methods for Payload Control

  2. Biodiesel Research Update | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Research Update Biodiesel Research Update 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: National Renewable Energy Laboratory PDF icon 2004_deer_mccormick.pdf More Documents & Publications Recent Research to Address Technical Barriers to Increased Use of Biodiesel Biodiesel ASTM Update and Future Technical Needs Performance of Biofuels and Biofuel Blends

  3. Update on INSIGHTS Development

    SciTech Connect (OSTI)

    Not Listed; Eric Burgett

    2011-09-01

    INSIGHTS is a transformational separate effects testing capability to perform in situ irradiation studies and characterization of the microscale behavior of nuclear fuel materials under a wide variety of in-pile conditions. Separate effects testing including growth, irradiation, and monitoring of these materials, and encompasses the full science based approach for fuels development from the nanoscale to the mesoscale behavior of the sample material and other defects driven by the modeling and simulation efforts of INL.

  4. NEMA Distribution Transformers, CCE Overview and Update presentation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distribution Transformers, CCE Overview and Update presentation, dated 05242011 NEMA Distribution Transformers, CCE Overview and Update presentation, dated 05242011 This...

  5. January 2013 News Update | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    January 2013 News Update American Fusion News Category: U.S. ITER Link: January 2013 News Update

  6. Intercomparison of the seasonal cycle in 200 hPa kinetic energy in AMIP GCM simulations

    SciTech Connect (OSTI)

    Boyle, J.S.

    1996-10-01

    The 200 hPa kinetic energy is represented by means of the spherical harmonic components for the Atmospheric Model Intercomparison Project (AMIP) simulations, the National Center for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis and the European Centre for Medium Range Weather Forecast Reanalysis (ERA). The data used are the monthly mean wind fields from 1979 to 1988. The kinetic energy is decomposed into the divergent (DKE) and rotational (RKE) components and emphasis is placed on examining the former. The two reanalysis data sets show reasonable agreement that is best for the rotational kinetic energy. The largest difference in the divergent kinetic energy occurs during the northern summer. As might be expected, the two analyses are closet in regions where there are sufficient observations such that the effect of the model used in the assimilation cycle are minimized. The observed RKE show only a slight seasonal cycle with a maximum occuring during the northern winter. The DKE, on the other hand, has a very pronounced seasonal cycle with maxima at the solsticial seasons and minima during the equinoctial seasons. The model results show a very large spread in the magnitudes of the RKE and DKE although the models all evince a seasonal variation in phase with that observed. The median values of the seasonal cycle of RKE and DKE for the models are usually superior to those of any individual model. Results are also presented for simulation following the AMIP protocol but using updated versions of the original AMIP entries. In most cases these new integrations show better agreement with the observations.

  7. Industrial Assessment Centers Quarterly Update, Spring 2014 | Department of

    Office of Environmental Management (EM)

    Energy Quarterly Update, Spring 2014 Industrial Assessment Centers Quarterly Update, Spring 2014 Read the Industrial Assessment Centers (IAC) Quarterly Update -- Spring 2014 PDF icon Industrial Assessment Centers (IAC) Quarterly Update -- Spring 2014 More Documents & Publications Industrial Assessment Centers (IAC) Update -- July 2015 Industrial Assessment Centers Update, Fall 2015

  8. Industrial Assessment Centers (IAC) Update -- July 2015 | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Assessment Centers (IAC) Update -- July 2015 Industrial Assessment Centers (IAC) Update -- July 2015 Read the Industrial Assessment Centers (IAC) Update -- July 2015 PDF icon Industrial Assessment Centers Quarterly Update, July 2015 More Documents & Publications Industrial Assessment Centers Update, Fall 2015 Industrial Assessment Centers Quarterly Update, Spring 2014 IAC Factsheet

  9. Industrial Assessment Centers Update, Fall 2015 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Industrial Assessment Centers Update, Fall 2015 Industrial Assessment Centers Update, Fall 2015 Read the Industrial Assessment Centers (IAC) Update, Fall 2015 PDF icon Industrial Assessment Centers Update, Fall 2015 More Documents & Publications Industrial Assessment Centers (IAC) Update -- July 2015 Industrial Assessment Centers Quarterly Update, Spring 2014 IAC Factsheet

  10. DOE Loan Programs Office Update

    Energy Savers [EERE]

    Energy's Loan Programs Office (LPO) is now offering a periodic newsletter with updates and information on financing opportunities, LPO project and portfolio news, and more. LPO facilitates the accelerated deployment of innovative clean energy projects and advanced vehicle manufacturing in the United States. For more information about LPO, please visit our new website: energy.gov/lpo $4 billion in Loan Guarantees Available for Innovative Renewable Energy Projects and Efficient Energy Projects DOE

  11. DOE Loan Programs Office Update

    Energy Savers [EERE]

    Supplements to Title XVII Loan Guarantee Solicitations Today, the U.S. Department of Energy's Loan Programs Office (LPO) has released important supplements to the Title XVII Advanced Fossil Energy Projects and Renewable Energy and Efficient Energy Projects (REEE) solicitations. These supplements provide detailed information about the three following updates to the Advanced Fossil Energy and REEE solicitations: Part I and Part II application due dates have been adjusted, and additional

  12. DOE Loan Programs Office Update

    Energy Savers [EERE]

    page is displaying incorrectly, please click here to view this email in your browser In this update: $12.5 Billion Advanced Nuclear Energy Projects Solicitation Announced LPO's Loan Portfolio Shows Strong Financial Performance Keeping America Informed About Open Loan Guarantee Solicitations Current Open Solicitations and Application Supplements $12.5 Billion Advanced Nuclear Energy Projects Solicitation Announced Last week, the U.S. Department of Energy announced that it is making as much as

  13. DOE Loan Programs Office Update

    Energy Savers [EERE]

    IN THIS UPDATE: MARCH 2015 ATVM CONDITIONAL COMMITMENT TO ALCOA, INC. UTILITY-SCALE PV SOLAR MARKETS REPORT 550-MW DESERT SUNLIGHT PROJECT DEDICATION CURRENT OPEN SOLICITATIONS DOE OFFERS ALCOA CONDITIONAL COMMITMENT OF $259 MILLION ATVM LOAN FOR AUTOMOTIVE ALUMINUM MANUFACTURING The Department of Energy has announced a conditional commitment for a loan of up to $259 million to Alcoa, Inc. under the Advanced Technology Vehicles Manufacturing (ATVM) loan program. The loan will finance expanded

  14. DOE Loan Programs Office Update

    Energy Savers [EERE]

    OW: T I T L E X V I I | AT V M IN THIS UPDATE: AUGUST 2015 PRESIDENT OBAMA ANNOUNCES LPO SUPPORT FOR DISTRIBUTED ENERGY PROJECTS OPEN SOLICITATIONS PRESIDENT OBAMA ANNOUNCES LPO SUPPORT FOR DISTRIBUTED ENERGY PROJECTS At the National Clean Energy Summit in Nevada, President Obama announced that the Loan Programs Office (LPO) has issued guidance for potential applicants on the kinds of distributed energy projects it can support, in the form of supplements to its existing Renewable Energy and

  15. NSA Broadband Instrument Study: Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Broadband Instrument Study: Update PI: Scott Richardson, NSA SST Co-Is: Chuck Long, Tom Stoffel, Ells Dutton, Joe Michalsky, Jeff Zirzow... Background * NSA last site where Diffuse Correction VAP applied * In analyses of results prior to release, an apparent problem surfaced... Typical Corrections: SGP All POSITIVE corrections Typical Corrections: TWP All POSITIVE corrections NSA Corrections Some NEGATIVE Full corrections SGP Winter Corrections All POSITIVE corrections NSA Broadband Operations *

  16. Better Buildings Workforce Guidelines UPDATE

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    WORKFORCE GUIDELINES UPDATE  Monica Neukomm, BBWG Project Manager, U.S. Department of Energy April 2015 Overview 1) Presenters  Lisa Shulock, CBEI: Career Pathways for the Energy Retrofit Workforce  Lisa Shulock, CBEI: Building Retuning Training 2) Overview of the Better Buildings Workforce portfolio Framework for a Better Buildings Workforce 3 Technical Standards Skills Standards Curricula & Training Industry- Recognized Certifications Third-Party Accreditation Driving Market

  17. Thayer Creek Hydroelectric Update - 2015

    Energy Savers [EERE]

    Thayer Creek Hydroelectric Update - 2015 2015 Program Review Meeting DOE Tribal Energy Program Denver, Colorado May 5, 2015 Sharon Love General Manger/President Kootznoowoo, Inc. Harold Frank, Jr., M.S. Land and Environmental Planner Kootznoowoo, Inc. Angoon, Alaska Vicinity Map Angoon, Alaska * City of Angoon - 457 people (2013) * Angoon Community Association (IRA tribe) * Kootznoowoo, Inc. - 1,000(+) shareholders (629 original) - ANCSA village corporation * Angoon area inhabited at least

  18. Update of the Used Fuel Disposition Campaign Implementation Plan

    SciTech Connect (OSTI)

    Jens Birkholzer; Robert MacKinnon; Kevin McMahon; Sylvia Saltzstein; Ken Sorenson; Peter Swift

    2014-09-01

    This Campaign Implementation Plan provides summary level detail describing how the Used Fuel Disposition Campaign (UFDC) supports achievement of the overarching mission and objectives of the Department of Energy Office of Nuclear Energy Fuel Cycle Technologies Program The implementation plan begins with the assumption of target dates that are set out in the January 2013 DOE Strategy for the Management and Disposal of Used Nuclear Fuel and High-Level Radioactive Waste (http://energy.gov/downloads/strategy-management-and-disposal-used-nuclear-fuel-and-high-level-radioactive-waste). These target dates and goals are summarized in section III. This implementation plan will be maintained as a living document and will be updated as needed in response to progress in the Used Fuel Disposition Campaign and the Fuel Cycle Technologies Program.

  19. Update of Energy Efficiency Requirements for Manufactured Homes

    SciTech Connect (OSTI)

    Conner, Craig C.; Dillon, Heather E.; Lucas, Robert G.; Early, Chris; Lubliner, Michael

    2004-03-22

    Energy efficiency requirements were developed for manufactured (mobile) homes, which are regulated by the U.S. Department of Housing and Urban Development (HUD). A life-cycle cost analysis from the homeowner's perspective was used to establish parameters for a least-cost home in a large number of cities. Economic, financial, and energy-efficiency measures for the life-cycle cost analysis were selected. The resulting energy-efficiency levels were aggregated to the existing HUD zones and expressed as a maximum overall home U-value (thermal transmittance) requirement for the building envelope. The proposed revised standard's costs, benefits, and net value to the consumer were quantified. This analysis updates a similar effort completed in 1992, which was the basis for the existing HUD code Uo requirements.

  20. Assessment of Projected Life-Cycle Costs for Wave, Tidal, Ocean Current,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and In-Stream Hydrokinetic Power | Department of Energy Assessment of Projected Life-Cycle Costs for Wave, Tidal, Ocean Current, and In-Stream Hydrokinetic Power Assessment of Projected Life-Cycle Costs for Wave, Tidal, Ocean Current, and In-Stream Hydrokinetic Power Assessment of Projected Life-Cycle Costs for Wave, Tidal, Ocean Current, and In-Stream Hydrokinetic Power Office presentation icon 16_life_revision_previsic_update.ppt More Documents & Publications 2014 Water Power Program

  1. Fact #783: June 10, 2013 Emissions and Energy Use Model - GREET |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 3: June 10, 2013 Emissions and Energy Use Model - GREET Fact #783: June 10, 2013 Emissions and Energy Use Model - GREET The Greenhouse Gases, Regulated Emission, and Energy Use in Transportation (GREET) Model is a full life-cycle model for evaluating the energy and emission impacts of various vehicle and fuel combinations. The first version of the GREET model was released in 1996. Since then, the model has been updated and expanded to include additional vehicle types and

  2. Energy flow, nutrient cycling, and ecosystem resilience

    SciTech Connect (OSTI)

    DeAngelis, D.L.

    1980-08-01

    The resilience, defined here as the speed with which a system returns to equilibrium state following a perturbation, is investigated for both food web energy models and nutrient cycling models. Previous simulation studies of food web energy models have shown that resilience increases as the flux of energy through the food web per unit amount of energy in the steady state web increases. Studies of nutrient cycling models have shown that resilience increases as the mean number of cycles that nutrient (or other mineral) atoms make before leaving the system decreases. In the present study these conclusions are verified analytically for general ecosystem models. The behavior of resilience in food web energy models and nutrient cycling models is a reflection of the time that a given unit, whether of energy or matter, spends in the steady state system. The shorter this residence time is, the more resilient the system is.

  3. HUD Updated Supplemental Lists - February 18, 2016 | Department of Energy

    Office of Environmental Management (EM)

    Updated Supplemental Lists - February 18, 2016 HUD Updated Supplemental Lists - February 18, 2016 HUD Updated Supplemental Lists - February 18, 2016 File Updated_supplemental_lists_1Q_2Q_ 2-18-16.xlsx More Documents & Publications updated_supplemental_lists_1n-2n-3m_07-06-2012.xlsx updated_supplemental_lists_1m-2m-3l-04-05-2012.xlsx updated_supplemental_lists_1p_2p_3o_04302013.xlsx

  4. Ultra-Low Sulfur diesel Update & Future Light Duty Diesel | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Low Sulfur diesel Update & Future Light Duty Diesel Ultra-Low Sulfur diesel Update & Future Light Duty Diesel Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_leister.pdf More Documents & Publications Fueling U.S. Light Duty Diesel Vehicles Biodiesel_Fuel_Management_Best_Practices_Report.pdf A Life-Cycle Assessment Comparing Select

  5. Coupling Mechanical with Electrochemical-Thermal Models for Batteries under Abuse

    SciTech Connect (OSTI)

    Wierzbicki, Tomasz; Sahraei, Elham; Dajka, Stephen; Li, Genong; Santhanagopalan, Shriram; Zhang, Chao; Kim, Gi-Heon; Sprague, Michael A.

    2015-06-09

    This presentation provides an update on coupled mechanical-electrochemical-thermal models for batteries under abuse.

  6. ARM - The Hydrologic Cycle

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hydrologic Cycle Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans The Hydrologic Cycle The hydrologic cycle is the cycle through which water passes from sea to land and from land to sea. Water vapor enters the air through the evaporation of water. Water vapor in the air eventually condenses

  7. Waste Management Update by Frank Marcinowski

    Office of Environmental Management (EM)

    U.S. DOE Environmental Management Update on Waste Management (and other EM Mission Units) Frank Marcinowski Deputy Assistant Secretary for Waste Management ENVIRONMENTAL MANAGEMENT SITE-SPECIFIC ADVISORY BOARD CHAIRS MEETING APRIL 18-19, 2012 PADUCAH, KENTUCKY www.em.doe.gov 2  Compliance update  Recent program accomplishments  FY 12 waste management priorities  FY 13 waste management priorities  Strategic goals related to waste and materials disposition  Update on Blue Ribbon

  8. Bradbury Museum's supercomputing exhibit gets updated

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Bradbury's supercomputing exhibit gets updated Bradbury Museum's supercomputing exhibit gets updated The updated exhibit interactive displays, artifacts from early computers, vacuum tubes from the MANIAC computer, and unique IBM cell blades from Roadrunner. May 19, 2011 Bradbury Science Museum Bradbury Science Museum Contact Communications Office (505) 667-7000 LOS ALAMOS, New Mexico, May 19, 2011-For decades, Los Alamos National Laboratory has been synonymous with supercomputing, achieving a

  9. Building America Update - March 11, 2013

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    March 11, 2013 This announcement brings you the latest information about news, activities, and publications from the U.S. Department of Energy's Building America program. Please forward this message to colleagues who may be interested in subscribing to future Building America Update newsletters. Plan to Attend the 2013 Technical Update Meeting If you haven't already registered for Building America's 2013 Technical Update Meeting scheduled for April 29-30, 2013, in Denver, Colorado, there is

  10. Building America Update - May 9, 2013

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    May 9, 2013 This announcement brings you the latest information about news, activities, and publications from the U.S. Department of Energy's (DOE) Building America program. Please forward this message to colleagues who may be interested in subscribing to future Building America Update newsletters. View Sessions from Building America 2013 Technical Update Meeting The Building America program held its 4 th annual Technical Update meeting on April 29-30, 2013, in Denver, Colorado. The meeting

  11. CAAFI Progress Update | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    CAAFI Progress Update CAAFI Progress Update Session 1-B: Advancing Alternative Fuels for the Military and Aviation Sector Breakout Session 1: New Developments and Hot Topics Steve Csonka, Executive Director, Commercial Aviation Alternative Fuels Research Initiative PDF icon b13_csonka_2-b.pdf More Documents & Publications Demonstration and Deployment Workshop - Day 1 Airlines & Aviation Alternative Fuels: Our Drive to Be Early Market Adopters An Update on FAA Alternative Jet Fuel Efforts

  12. Subscribe to News Updates | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Subscribe to News Updates Subscribe to News Updates The Office of Energy Efficiency and Renewable Energy (EERE) offers these news services that cover the EERE industry: EERE News Sign up to receive breaking news announcing EERE's accomplishments, research initiatives, funding opportunities, and more. Subscribe to the email list on the right side of this page, or subscribe to the RSS feed. EERE Blog The EERE Blog includes updates on current EERE projects, interviews with energy experts, and other

  13. Updated

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Multiple Award IDIQ Unrestricted contracts for nationwide environmental services environmental cleanup AECOM Technical Services, Inc. Bechtel National, Inc. CDM A Joint Venture ...

  14. Solar energy legal bibliography update

    SciTech Connect (OSTI)

    Seeley, D.

    1980-06-01

    The Solar Energy Legal Bibliography Update is a compilation of approximately 100 solar publications abstracted for their legal and policy content (covering the period October 1978 to August 1979). Emphasis is on legal barriers and incentives to solar energy development. Abstracts are arranged under the following categories: Antitrust, Biomass, Building Codes, Consumer Protection, Environmental Aspects, Federal Legislation and Programs, Financing/Insurance, International Law, Labor, Land Use (Covenants, Easements, Nuisance, Zoning), Local Legislation and Programs, Ocean Energy, Patents and Licenses, Photovoltaics, Solar Access Rights, Solar Heating and Cooling, Solar Thermal Power Systems, Standards, State Legislation and Programs, Tax Law, Tort Liability, Utilities, Warranties, Wind Resources, and General Solar Law.

  15. Heating Oil and Propane Update

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Holiday Release Schedule The Heating Oil and Propane Update is produced during the winter heating season, which extends from October through March of each year. The standard release time and day of the week will be at 1:00 p. m. (Eastern time) on Wednesdays with the following exceptions. All times are Eastern. Data for: Alternate Release Date Release Day Release Time Holiday October 12, 2015 October 15, 2015 Thursday 1:00 p.m. Columbus November 9, 2015 November 12, 2015 Thursday 1:00 p.m.

  16. Waste Isolation Pilot Plant Update

    Office of Environmental Management (EM)

    Update J. R. Stroble Director, National TRU Program U.S. Department of Energy Carlsbad Field Office National Transportation Stakeholder Forum May 11, 2011 Denver, Colorado 2 2 Shipments received at WIPP to date: 9,493 Contact-handled: 9,019 Remote-handled: 474 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 44 84 366 947 818 1,002 98 8 997 1,144 730 1,032 Total Shipments by Calendar Year (Including intersite shipments) 1,194 CH TRU waste shipments only CH and RH TRU waste

  17. DSO216_Phase_II_Summary_Updates

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Limiting Wind Output to Scheduled Value and Curtailing Schedules to Actual Wind Generation Updated: December 13, 2013 I. PURPOSE The purpose of Dispatcher Standing Order (DSO)...

  18. Progress Update: P-Reactor Grout

    ScienceCinema (OSTI)

    Cody, Tom

    2012-06-14

    A progress update, the Recovery Act at work at the Savannah River Site. The new phase of work on the permanent closure of two cold war nuclear reactors.

  19. Workplace Charging Challenge Progress Update 2014

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    4 Progress Update 2014: Employers Take Charge Available at energy.goveerevehiclesev-everywhere-workplace-charging-challenge Workplace Charging Challenge 5 Cumulative...

  20. National Algal Biofuels Technology Roadmap Update Webinar

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Department of Energy Bioenergy Technologies Office (BETO) Advanced Algal Systems Program is in the process of updating the National Algal Biofuels Technology Roadmap published in 2010. It is the Program’s intention that this update include a thorough review of the scientific research and breakthroughs, novel and emerging technologies, as well as remaining barriers and challenges in the field through assistance from experts in the field. The purpose of this webinar is to provide expert reviewers information on why the Office is completing the update and how to provide input to the Roadmap Update.

  1. Energy Storage Systems 2010 Update Conference Presentations ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon ESS 2010 Update Conference - Flow Battery Solution for Smart Grid Renewable ... More Documents & Publications Fact Sheet: Carbon-Enhanced Lead-Acid Batteries (October ...

  2. Program Update: 4th Quarter 2011

    Broader source: Energy.gov [DOE]

    The Program Update newsletter is produced every quarter and highlights major activities and events that occurred across the DOE complex during that period of time.

  3. Recovery Act Progress Update: Reactor Closure Feature

    ScienceCinema (OSTI)

    Cody, Tom

    2012-06-14

    A Recovery Act Progress Update. Decommissioning of two nuclear reactor sites at the Department of Energy's facilities has been approved and is underway.

  4. Associate Directorate for Environmental Programs Update November...

    Broader source: Energy.gov (indexed) [DOE]

    Organizational Changes Nitrate Salt Waste Chromium Remediation RDX Remediation MDA L Soil Vapor Extraction IP Renewal ADEP Update - November 19, 2014 More Documents & Publications...

  5. WINDExchange Webinar: Offshore Wind Market Update

    Broader source: Energy.gov [DOE]

    Aaron Smith, an energy analyst at the National Renewable Energy Laboratory, will present an overview and update of the U.S. offshore wind market.

  6. Canadian Fuel Cell Commercialization Roadmap Update: Progress...

    Open Energy Info (EERE)

    Fuel Cell Commercialization Roadmap Update: Progress of Canada's Hydrogen and Fuel Cell Industry Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Canadian Fuel Cell...

  7. Trainers’ Consortium: SWS/Certification Updates

    Broader source: Energy.gov [DOE]

    This presentation contains recent updates on SWS maintenance and the Home Energy Professional Certifications, given via the Trainers' Consortium call on December 1, 2015.

  8. Electricity Monthly Update - Energy Information Administration

    U.S. Energy Information Administration (EIA) Indexed Site

    all Electricity Reports Electricity Monthly Update With Data ... Issue: March 2016 February 2016 January 2016 December 2015 ... Source: U.S. Energy Information Administration, Form EIA-923 ...

  9. Updating Interconnection Screens for PV System Integration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tom Key, Kristen Nicole, Jeff Smith Electric Power Research Institute Updating ... Kristen Nicole, Jeff Smith Electric Power Research Institute Prepared under Task No(s). ...

  10. Associate Directorate for Environmental Programs Update July...

    Office of Environmental Management (EM)

    July 30, 2014 Associate Directorate for Environmental Programs Update July 30, 2014 Topics: LANL Nitrate Salts Waste Chromium groundwater Remediation Storm Water Field Work PDF...

  11. WIPP Update 6_20-14

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    expected to begin filter replacement in the second unit tonight. CBFO Manager's weekly update to local residents Read Carlsbad Field Office Manager Joe Franco's letter to Eddy,...

  12. EM Update Presentation by David Huizenga

    Office of Environmental Management (EM)

    EM Program Update EM Site-Specific Advisory Board Chairs' Meeting October 2, 2012 David Huizenga Senior Advisor for Environmental Management www.em.doe.gov safety performance...

  13. WIPP Update 7_28_14

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    WIPP UPDATE: July 28, 2014 MSHA performs WIPP inspection The Mine Safety and Health Administration (MSHA) recently inspected the WIPP facility. Since underground access was not...

  14. ANNUAL ACCOMPLISHMENT PLAN UPDATE FOR DISABLED VETERANS

    National Nuclear Security Administration (NNSA)

    throughout FY 2015. Efforts are also underway within NNSA to update and enhance marketing materials targeted towards the hiring of Veterans. o Promote and Develop One of the...

  15. GAX absorption cycle design process

    SciTech Connect (OSTI)

    Priedeman, D.K.; Christensen, R.N.

    1999-07-01

    This paper presents an absorption system design process that relies on computer simulations that are validated by experimental findings. An ammonia-water absorption heat pump cycle at 3 refrigeration tons (RT) and chillers at 3.3 RT and 5 RT (10.5 kW, 11.6 kW, and 17.6 kW) were initially modeled and then built and tested. The experimental results were used to calibrate both the cycle simulation and the component simulations, yielding computer design routines that could accurately predict component and cycle performance. Each system was a generator-absorber heat exchange (GAX) cycle, and all were sized for residential and light commercial use, where very little absorption equipment is currently used. The specific findings of the 5 RT (17.6 kW) chiller are presented. Modeling incorporated a heat loss from the gas-fired generator and pressure drops in both the evaporator and absorber. Simulation results and experimental findings agreed closely and validated the modeling method and simulation software.

  16. ARM - Publications: Science Team Meeting Documents: Update on Activities of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the CAPT* Project Update on Activities of the CAPT* Project Potter, Gerald Lawrence Livermore National Laboratory Boyle, Jim Lawrence Livermore National Laboratory Klein, Stephen Lawrence Livermore National Laboratory Phillips, Thomas PCMDI/LLNL Xie, Shaocheng Lawrence Livermore National Laboratory Zhang, Guang University of California, San Diego The DOE CAPT project involves comparison of short-range weather forecasts from climate models to ARM data to assess errors in existing and

  17. NNMCAB Member Update | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Topic: Patti Jones LANL, Provided the Members with a Status Update to the TA-21 Demolition and Storm Water Season Rain Events. PDF icon Member Update - September 24, 2014 More Documents & Publications NNMCAB Board Minutes: July 2011 Los Alamos NNMCAB Board Agenda: March 2014 Albuquerque NNMCAB Board Minutes: January 2010 Santa Fe

  18. Better Plants Progress Update Fall 2013

    SciTech Connect (OSTI)

    none,

    2013-09-23

    This Progress Update summarizes the significant energy saving achievements and cumulative cost savings made by these industry leaders from 2010-2012. The update also shares the plans and priorities over the next year for the Better Plants Program to continue to advance energy efficiency in the industrial sector.

  19. V-222: SUSE update for Filezilla | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2: SUSE update for Filezilla V-222: SUSE update for Filezilla August 20, 2013 - 6:00am Addthis PROBLEM: SUSE has issued an update for filezilla PLATFORM: openSUSE 12.2 and 12.3...

  20. HES Program Update and Scoring Tool v2014 Release | Department...

    Energy Savers [EERE]

    HES Program Update and Scoring Tool v2014 Release HES Program Update and Scoring Tool v2014 Release Program Update and Scoring Tool v2014 Release, a presentation from the U.S....

  1. Energy Storage Systems 2012 Peer Review and Update Meeting |...

    Office of Environmental Management (EM)

    2 Peer Review and Update Meeting Energy Storage Systems 2012 Peer Review and Update Meeting OE's Energy Storage Systems Program (ESS) conducted a peer review and update meeting in ...

  2. Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Plant | Department of Energy Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Presentation at the Renewable Hydrogen Workshop, Nov. 16, 2009, in Palm Springs, CA PDF icon renewable_hydrogen_workshop_nov16_eckhardt.pdf More Documents & Publications From Cleanup to Stewardship Hydrogen Embrittlement Fundamentals, Modeling, and Experiment QER - Comment of Energy Innovation 6

  3. Program Update: 1st Quarter 2010 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    0 Program Update: 2nd Quarter 2010 The Program Update newsletter is produced every quarter and highlights major activities and events that occurred across the DOE complex during that period of time. PDF icon Office of Legacy Management (LM) Program Update, April-June 2010 More Documents & Publications Program Update: 1st Quarter 2010 Program Update: 4th Quarter 2010 Program Update: 3rd Quarter 2010

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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  7. Program Update: 3rd Quarter 2011 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    09 Program Update: 4th Quarter 2009 The Program Update newsletter is produced every quarter and highlights major activities and events that occurred across the DOE complex during that period of time. PDF icon Office of Legacy Management (LM) Program Update, October-December 2009 More Documents & Publications Program Update: 4th Quarter 2010 Program Update: 2nd Quarter 2009 Program Update: 3rd

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    10 Program Update: 4th Quarter 2010 The Program Update newsletter is produced every quarter and highlights major activities and events that occurred across the DOE complex during that period of time. PDF icon Office of Legacy Management (LM) Program Update, October-December 2010 More Documents & Publications Program Update: 4th Quarter 2012 Program Update: 4th Quarter 2011 Program Update: 4th

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    Energy Savers [EERE]

    1st Quarter 2009 Program Update: 1st Quarter 2009 The Program Update newsletter is produced every quarter and highlights major activities and events that occurred across the DOE complex during that period of time. PDF icon Office of Legacy Management (LM) Program Update, January-March 2009 More Documents & Publications Program Update: 1st Quarter 2011 Program Update: 1st Quarter 2010 Program Update: 2nd Quarter 2013

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    Energy Savers [EERE]

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    Office of Environmental Management (EM)

    6 to: A Dispersion Modeling Analysis of Downwash from Mirant's Potomac River Power Plant Modeling Baseload Units 3,4,5 ENSR Corporation January 13, 2006 Document Number 10350-002-420 (Update 6) January, 2006 1-1 1.0 INTRODUCTION This report describes dispersion modeling performed for simultaneous operation of three baseload units at Mirant's Potomac River Generating Station (PRGS). The units (3,4,5) would operate at maximum load (107 MW) for up to 12 hours and minimum load (35 MW) 12 hours or

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Office of Environmental Management (EM)

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    Open Energy Info (EERE)

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Scientific and Technical Information (OSTI)

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Scientific and Technical Information (OSTI)

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    Energy Savers [EERE]

    Policy Flash 2013-49 Updating Reporting Requirement Checklist including the research performance progress report Policy Flash 2013-49 Updating Reporting Requirement Checklist...

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Broader source: Energy.gov [DOE]

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Lighting, CCE Overview and Update presentation, dated 05252011. NEMA Lighting, CCE Overview and Update presentation, dated 05252011. This document is the U.S. Department of ...

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    Office of Environmental Management (EM)

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    Office of Scientific and Technical Information (OSTI)

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    Energy Savers [EERE]

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Scientific and Technical Information (OSTI)

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    Office of Scientific and Technical Information (OSTI)

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    Energy Savers [EERE]

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    Broader source: Energy.gov [DOE]

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    Energy Savers [EERE]

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Environmental Management (EM)

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    Energy Savers [EERE]

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Broader source: Energy.gov (indexed) [DOE]

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Energy Savers [EERE]

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Energy Savers [EERE]

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    Office of Environmental Management (EM)

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    13, 2011 Appliance Standards Program Schedule - CCE Overview and Update, dated October 26, 2011 NEMA Distribution Transformers, CCE Overview and Update presentation, dated 0524...

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    Office of Environmental Management (EM)

    & Publications AHAM - CCE Overview and Update, dated 06072011 NEMA Distribution Transformers, CCE Overview and Update presentation, dated 05242011 NEMA Lighting, CCE Overview...

  13. Building America Update - December 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Office of Scientific and Technical Information (OSTI)

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    modeling - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy

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    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-03-28

    Life-cycle costs (LCCs) are all the anticipated costs associated with a project or program alternative throughout its life. This includes costs from pre-operations through operations or to the end of the alternative.This chapter discusses life cycle costs and the role they play in planning.

  1. Power Plant Cycling Costs

    SciTech Connect (OSTI)

    Kumar, N.; Besuner, P.; Lefton, S.; Agan, D.; Hilleman, D.

    2012-07-01

    This report provides a detailed review of the most up to date data available on power plant cycling costs. The primary objective of this report is to increase awareness of power plant cycling cost, the use of these costs in renewable integration studies and to stimulate debate between policymakers, system dispatchers, plant personnel and power utilities.

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    Office of Legacy Management (LM)

    Baseline Risk Assessment Update 4.0 Baseline Risk Assessment Update This section updates the human health and the ecological risk assessments that were originally presented in the 1998 RI (DOE 1998a). The impacts on the 1998 risk assessments are summarized in Section 2.9. 4.1 Human Health Risk Assessment Several activities completed since 1998 have contributed to changes in surface water and ground water concentrations. Activities that have impacted, or likely impacted surface water and ground

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    Broader source: Energy.gov [DOE]

    At the August 7, 2008 quarterly joint Web conference of DOE's Biomass and Clean Cities programs, Stacey Simms (Colorado Governor's Energy Office) provided an update on Biofuels in Colorado.

  4. Energy Storage Systems 2010 Update Conference Presentations ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Broader source: Energy.gov [DOE]

    This February 2015 issue of the monthly newsletter, Building America Update, provides the latest information about news, events, and publications from the U.S. Department of Energy's Building America program.

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    Broader source: Energy.gov [DOE]

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Gasoline and Diesel Fuel Update (EIA)

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    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

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    Broader source: Energy.gov [DOE]

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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    Broader source: Energy.gov [DOE]

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  16. Input visualization for the Cyclus nuclear fuel cycle simulator: CYClus Input Control

    SciTech Connect (OSTI)

    Flanagan, R.; Schneider, E.

    2013-07-01

    This paper discusses and demonstrates the methods used for the graphical user interface for the Cyclus fuel cycle simulator being developed at the University of Wisconsin-Madison. Cyclus Input Control (CYCIC) is currently being designed with nuclear engineers in mind, but future updates to the program will be made to allow even non-technical users to quickly and efficiently simulate fuel cycles to answer the questions important to them. (authors)

  17. Remediated Nitrate Salt Drums Safety Update | Department of Energy

    Office of Environmental Management (EM)

    Remediated Nitrate Salt Drums Safety Update Remediated Nitrate Salt Drums Safety Update Topic: Mr. Nickless, Environmental Management Los Alamos, Provided a presentation on the status of the Nitrate Salt waste at Los Alamos. More Documents & Publications Los Alamos National Laboratory TRU Waste Update Los Alamos National Laboratory Accident Investigation Board Corrective Action Plan Update Treatment of Remediated Nitrate Salts

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    Broader source: Energy.gov [DOE]

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  19. Live Webinar on Better Buildings Challenge: Public-Sector Update

    Broader source: Energy.gov [DOE]

    The Energy Department will present a live webinar titled "Better Buildings Challenge: Public-Sector Update."

  20. BioenergizeME Infographic Challenge Annual Update | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Annual Update BioenergizeME Infographic Challenge Annual Update Annual Update for the BioenergizeME Infographic Challenge. PDF icon 2016_annual_update.pdf More Documents & Publications Webinar: BioenergizeME Office Hours Webinar: Guide to the 2016 BioenergizeME Infographic Challenge BioenergizeME Infographic Challenge Flyer BioenergizeME Infographic Challenge Toolkit