Sample records for development impact models

  1. Impacts of Contaminant Storage on Indoor Air Quality: Model Development

    E-Print Network [OSTI]

    . Impacts of contaminant storage on indoor air quality: Model development. Atmospheric Environment. LBNL the buffering of airborne chemical species by building materials and furnishings in the indoor environment to the time scale of depletion of the compound from the storage medium, however, the total exposure

  2. Jobs and Economic Development Impacts from Small Wind: JEDI Model in the Works (Presentation)

    SciTech Connect (OSTI)

    Tegen, S.

    2012-06-01T23:59:59.000Z

    This presentation covers the National Renewable Energy Laboratory's role in economic impact analysis for wind power Jobs and Economic Development Impacts (JEDI) models, JEDI results, small wind JEDI specifics, and a request for information to complete the model.

  3. Model Examines Cumulative Impacts of Wind Energy Development...

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

    an area that currently supports important populations of greater sage-grouse and has high wind energy development potential. This early model prototype demonstrated the utility of...

  4. Assessment of the Value, Impact, and Validity of the Jobs and Economic Development Impacts (JEDI) Suite of Models

    SciTech Connect (OSTI)

    Billman, L.; Keyser, D.

    2013-08-01T23:59:59.000Z

    The Jobs and Economic Development Impacts (JEDI) models, developed by the National Renewable Energy Laboratory (NREL) for the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), use input-output methodology to estimate gross (not net) jobs and economic impacts of building and operating selected types of renewable electricity generation and fuel plants. This analysis provides the DOE with an assessment of the value, impact, and validity of the JEDI suite of models. While the models produce estimates of jobs, earnings, and economic output, this analysis focuses only on jobs estimates. This validation report includes an introduction to JEDI models, an analysis of the value and impact of the JEDI models, and an analysis of the validity of job estimates generated by JEDI model through comparison to other modeled estimates and comparison to empirical, observed jobs data as reported or estimated for a commercial project, a state, or a region.

  5. Impacts of contaminant storage on indoor air quality: Model development

    SciTech Connect (OSTI)

    Sherman, Max H.; Hult, Erin L.

    2013-02-26T23:59:59.000Z

    A first-order, lumped capacitance model is used to describe the buffering of airborne chemical species by building materials and furnishings in the indoor environment. The model is applied to describe the interaction between formaldehyde in building materials and the concentration of the species in the indoor air. Storage buffering can decrease the effect of ventilation on the indoor concentration, compared to the inverse dependence of indoor concentration on the air exchange rate that is consistent with a constant emission rate source. If the exposure time of an occupant is long relative to the time scale of depletion of the compound from the storage medium, however, the total exposure will depend inversely on the air exchange rate. This lumped capacitance model is also applied to moisture buffering in the indoor environment, which occurs over much shorter depletion timescales of the order of days. This model provides a framework to interpret the impact of storage buffering on time-varying concentrations of chemical species and resulting occupant exposure. Pseudo-steady state behavior is validated using field measurements. Model behavior over longer times is consistent with formaldehyde and moisture concentration measurements in previous studies.

  6. Jobs and Economic Development Impact (JEDI) Model: Offshore Wind User Reference Guide

    SciTech Connect (OSTI)

    Lantz, E.; Goldberg, M.; Keyser, D.

    2013-06-01T23:59:59.000Z

    The Offshore Wind Jobs and Economic Development Impact (JEDI) model, developed by NREL and MRG & Associates, is a spreadsheet based input-output tool. JEDI is meant to be a user friendly and transparent tool to estimate potential economic impacts supported by the development and operation of offshore wind projects. This guide describes how to use the model as well as technical information such as methodology, limitations, and data sources.

  7. Petroleum Refinery Jobs and Economic Development Impact (JEDI) Model User Reference Guide

    SciTech Connect (OSTI)

    Goldberg, M.

    2013-12-31T23:59:59.000Z

    The Jobs and Economic Development Impact (JEDI) models, developed through the National Renewable Energy Laboratory (NREL), are user-friendly tools utilized to estimate the economic impacts at the local level of constructing and operating fuel and power generation projects for a range of conventional and renewable energy technologies. The JEDI Petroleum Refinery Model User Reference Guide was developed to assist users in employing and understanding the model. This guide provides information on the model's underlying methodology, as well as the parameters and references used to develop the cost data utilized in the model. This guide also provides basic instruction on model add-in features, operation of the model, and a discussion of how the results should be interpreted. Based on project-specific inputs from the user, the model estimates job creation, earning and output (total economic activity) for a given petroleum refinery. This includes the direct, indirect and induced economic impacts to the local economy associated with the refinery's construction and operation phases. Project cost and job data used in the model are derived from the most current cost estimations available. Local direct and indirect economic impacts are estimated using economic multipliers derived from IMPLAN software. By determining the regional economic impacts and job creation for a proposed refinery, the JEDI Petroleum Refinery model can be used to field questions about the added value refineries may bring to the local community.

  8. Transmission Line Jobs and Economic Development Impact (JEDI) Model User Reference Guide

    SciTech Connect (OSTI)

    Goldberg, M.; Keyser, D.

    2013-10-01T23:59:59.000Z

    The Jobs and Economic Development Impact (JEDI) models, developed through the National Renewable Energy Laboratory (NREL), are freely available, user-friendly tools that estimate the potential economic impacts of constructing and operating power generation projects for a range of conventional and renewable energy technologies. The Transmission Line JEDI model can be used to field questions about the economic impacts of transmission lines in a given state, region, or local community. This Transmission Line JEDI User Reference Guide was developed to provide basic instruction on operating the model and understanding the results. This guide also provides information on the model's underlying methodology, as well as the parameters and references used to develop the cost data contained in the model.

  9. Jobs and Economic Development Impact (JEDI) Model Geothermal User Reference Guide

    SciTech Connect (OSTI)

    Johnson, C.; Augustine, C.; Goldberg, M.

    2012-09-01T23:59:59.000Z

    The Geothermal Jobs and Economic Development Impact (JEDI) model, developed through the National Renewable Energy Laboratory (NREL), is an Excel-based user-friendly tools that estimates the economic impacts of constructing and operating hydrothermal and Enhanced Geothermal System (EGS) power generation projects at the local level for a range of conventional and renewable energy technologies. The JEDI Model Geothermal User Reference Guide was developed to assist users in using and understanding the model. This guide provides information on the model's underlying methodology, as well as the parameters and references used to develop the cost data utilized in the model. This guide also provides basic instruction on model add-in features, operation of the model, and a discussion of how the results should be interpreted.

  10. New Model Examines Cumulative Impacts of Wind Energy Development...

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

    with funding from DOE's Wind and Water Power Program. Increasing concerns over the sustainability of sage-grouse populations in the face of increasing development have led...

  11. Impacts of contaminant storage on indoor air quality: Model development

    E-Print Network [OSTI]

    environment. The model is applied to describe the interaction between formaldehyde in building materials to the timescale of depletion of the compound from the storage medium, however, the total exposure will depend in the indoor environment, which occurs over much shorter depletion timescales of the order of days. This model

  12. Modelling Agricultural Trade and Policy Impacts in Less Developed...

    Open Energy Info (EERE)

    that there is a need for greater investment in the sector, both to achieve immediate poverty reduction and to stimulate broader pro-poor economic development. This is a core...

  13. NREL: Jobs and Economic Development Impact (JEDI) Models - Downloading the

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with Us PhotoJEDI Models

  14. Jobs and Economic Development Modeling

    Broader source: Energy.gov [DOE]

    Project objective: Develop models to estimate jobs and economic impacts from geothermal project development and operation.

  15. Modeling Low Impact Development at the Small-Watershed Scale: Implications for the Decision Making Process

    E-Print Network [OSTI]

    Seo, Mijin

    2014-12-03T23:59:59.000Z

    and soluble phosphorus loadings according to the impact of the three types of land use changes (conversion to deforestation, urbanization, and agricultural land) using a Soil and Water Assessment Tool (SWAT) model. Bhattarai et al. (2011) investigated water... higher peak flow and nitrogen and phosphorus loads than the other two designs because of high impervious surfaces and low open space and urban forests. Yang and Li (2011) evaluated the impact of two different urban planning types (high-density and low...

  16. A regional economic impact model for identifying the relationship between transportation investments and economic development

    E-Print Network [OSTI]

    Freyre, German Eleodoro

    1989-01-01T23:59:59.000Z

    Allocation of Project Investment Calculation for Efficiency Savings Calculation of Mobility Savings Calculation of Safety Savings FHWA-47 Form Program Structure Basic Procedures Regional Impacts by the Amount Invested in an Urban Interstate System... Regional Impacts by the Amount Invested in an Urban Primary System Regional Impacts by the Amount Invested in an Rural Interstate System Regional Impacts by the Amount Invested in an Rural Primary System 15 17 18 20 . 23 27 56 58 95 96 97...

  17. Environmental Impacts of Increased Hydroelectric Development...

    Energy Savers [EERE]

    Environmental Impacts of Increased Hydroelectric Development at Existing Dams Environmental Impacts of Increased Hydroelectric Development at Existing Dams This report describes...

  18. Mitigating Potential Environmental Impacts of Energy Development...

    Energy Savers [EERE]

    Mitigating Potential Environmental Impacts of Energy Development Mitigating Potential Environmental Impacts of Energy Development April 15, 2013 - 12:00am Addthis Partnering with...

  19. A Study of the Economic Impact of Water Impoundment Through the Development of a Comparative-Projection Model

    E-Print Network [OSTI]

    Pearson, J.E.

    Using two established reservoir projects, an economic simulation model for reservoir development was constructed. The two comparative areas used for the model development are both reservoirs in central Texas and were constructed during approximately...

  20. Offshore Wind Jobs and Economic Development Impacts in the United...

    Energy Savers [EERE]

    the offshore wind Jobs and Economic Development Impacts (JEDI) model and provides four case studies of potential offshore wind deployment scenarios in different regions of the...

  1. Modeling dust as component minerals in the Community Atmosphere Model: development of framework and impact on radiative forcing

    SciTech Connect (OSTI)

    Scanza, Rachel; Mahowald, N.; Ghan, Steven J.; Zender, C. S.; Kok, J. F.; Liu, Xiaohong; Zhang, Y.; Albani, Samuel

    2015-01-01T23:59:59.000Z

    The mineralogy of desert dust is important due to its effect on radiation, clouds and biogeochemical cycling of trace nutrients. This study presents the simulation of dust radiative forcing as a function of both mineral composition and size at the global scale using mineral soil maps for estimating emissions. Externally mixed mineral aerosols in the bulk aerosol module in the Community Atmosphere Model version 4 (CAM4) and internally mixed mineral aerosols in the modal aerosol module in the Community Atmosphere Model version 5.1 (CAM5) embedded in the Community Earth System Model version 1.0.5 (CESM) are speciated into common mineral components in place of total dust. The simulations with mineralogy are compared to available observations of mineral atmospheric distribution and deposition along with observations of clear-sky radiative forcing efficiency. Based on these simulations, we estimate the all-sky direct radiative forcing at the top of the atmosphere as +0.05Wm?2 for both CAM4 and CAM5 simulations with mineralogy and compare this both with simulations of dust in release versions of CAM4 and CAM5 (+0.08 and +0.17Wm?2) and of dust with optimized optical properties, wet scavenging and particle size distribution in CAM4 and CAM5, ?0.05 and ?0.17Wm?2, respectively. The ability to correctly include the mineralogy of dust in climate models is hindered by its spatial and temporal variability as well as insufficient global in-situ observations, incomplete and uncertain source mineralogies and the uncertainties associated with data retrieved from remote sensing methods.

  2. he Impact of Primary Marine Aerosol on Atmospheric Chemistry, Radiation and Climate: A CCSM Model Development Study

    SciTech Connect (OSTI)

    Keene, William C. [University of Virginia] [University of Virginia; Long, Michael S. [University of Virginia] [University of Virginia

    2013-05-20T23:59:59.000Z

    This project examined the potential large-scale influence of marine aerosol cycling on atmospheric chemistry, physics and radiative transfer. Measurements indicate that the size-dependent generation of marine aerosols by wind waves at the ocean surface and the subsequent production and cycling of halogen-radicals are important but poorly constrained processes that influence climate regionally and globally. A reliable capacity to examine the role of marine aerosol in the global-scale atmospheric system requires that the important size-resolved chemical processes be treated explicitly. But the treatment of multiphase chemistry across the breadth of chemical scenarios encountered throughout the atmosphere is sensitive to the initial conditions and the precision of the solution method. This study examined this sensitivity, constrained it using high-resolution laboratory and field measurements, and deployed it in a coupled chemical-microphysical 3-D atmosphere model. First, laboratory measurements of fresh, unreacted marine aerosol were used to formulate a sea-state based marine aerosol source parameterization that captured the initial organic, inorganic, and physical conditions of the aerosol population. Second, a multiphase chemical mechanism, solved using the Max Planck Institute for Chemistryâ??s MECCA (Module Efficiently Calculating the Chemistry of the Atmosphere) system, was benchmarked across a broad set of observed chemical and physical conditions in the marine atmosphere. Using these results, the mechanism was systematically reduced to maximize computational speed. Finally, the mechanism was coupled to the 3-mode modal aerosol version of the NCAR Community Atmosphere Model (CAM v3.6.33). Decadal-scale simulations with CAM v.3.6.33, were run both with and without reactive-halogen chemistry and with and without explicit treatment of particulate organic carbon in the marine aerosol source function. Simulated results were interpreted (1) to evaluate influences of marine aerosol production on the microphysical properties of aerosol populations and clouds over the ocean and the corresponding direct and indirect effects on radiative transfer; (2) atmospheric burdens of reactive halogen species and their impacts on O3, NOx, OH, DMS, and particulate non-sea-salt SO42-; and (3) the global production and influences of marine-derived particulate organic carbon. The model reproduced major characteristics of the marine aerosol system and demonstrated the potential sensitivity of global, decadal-scale climate metrics to multiphase marine-derived components of Earthâ??s troposphere. Due to the combined computational burden of the coupled system, the currently available computational resources were the limiting factor preventing the adequate statistical analysis of the overall impact that multiphase chemistry might have on climate-scale radiative transfer and climate.

  3. Economic Development Impacts of Wind Power: A Comparative Analysis of Impacts within the Western Governors' Association States; Preprint

    SciTech Connect (OSTI)

    Tegen, S.; Milligan, M.; Goldberg, M.

    2007-06-01T23:59:59.000Z

    This paper uses NREL's newest Jobs and Economic Development Impacts (JEDI II) model to assess economic impacts from alternative power technologies, with a focus on wind energy, for a variety of states.

  4. Geothermal Development Job Types and Impacts

    Broader source: Energy.gov [DOE]

    Development of geothermal power plants and direct-use applications creates a variety of jobs. And the resulting job creation and economic activity within the geothermal industry positively impacts...

  5. 2006 Long Range Development Plan Final Environmental Impact Report

    E-Print Network [OSTI]

    Philliber, Jeff

    2007-01-01T23:59:59.000Z

    locations. V.G.2 Impacts Environmental effects at the hillThis EIR IV. Environmental Setting, Impacts, and Mitigationanalysis of environmental impacts, and actual development

  6. Development and Health The impact of health on development in

    E-Print Network [OSTI]

    Glasgow, University of

    · breakdown of health care delivery systems · inadequate application of TB control measures · increasing drug's population are at risk - increasing due to: · breakdown of health care delivery systems · growing drugDevelopment and Health The impact of health on development in Africa #12;Health challenges

  7. Jobs and Economic Development Impacts (Postcard)

    SciTech Connect (OSTI)

    Not Available

    2011-08-01T23:59:59.000Z

    The U.S. Department of Energy's Wind Powering America initiative provides information on the Jobs and Economic Development Benefits model. This postcard is a marketing piece that stakeholders can provide to interested parties; it will guide them to the Jobs and Economic Development Benefits model section on the Wind Powering America website.

  8. Evaluating the Impact of Development Projects on Poverty: A Handbook...

    Open Energy Info (EERE)

    Evaluating the Impact of Development Projects on Poverty: A Handbook for Practitioners Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Evaluating the Impact of...

  9. A quasi-static model of drop impact

    E-Print Network [OSTI]

    Bush, John W. M.

    We develop a conceptually simple theoretical model of non-wetting drop impact on a rigid surface at small Weber numbers. Flat and curved impactor surfaces are considered, and the influence of surface curvature is elucidated. ...

  10. Conference Proceedings, 2011 Low Impact Development Symposium, Submitted, March 2012 Economic and Adaptation Benefits of Low Impact Development

    E-Print Network [OSTI]

    Conference Proceedings, 2011 Low Impact Development Symposium, Submitted, March 2012 1 Economic.ballestero@unh.edu; web: www.unh.edu/unhsc/. #12;Conference Proceedings, 2011 Low Impact Development Symposium, Submitted

  11. Development of a Kelp-type Structure Module in a Coastal Ocean Model to Assess the Hydrodynamic Impact of Seawater Uranium Extraction Technology

    SciTech Connect (OSTI)

    Wang, Taiping; Khangaonkar, Tarang; Long, Wen; Gill, Gary A.

    2014-02-07T23:59:59.000Z

    In recent years, with the rapid growth of global energy demand, the interest in extracting uranium from seawater for nuclear energy has been renewed. While extracting seawater uranium is not yet commercially viable, it serves as a “backstop” to the conventional uranium resources and provides an essentially unlimited supply of uranium resource. With recent advances in seawater uranium extraction technology, extracting uranium from seawater could be economically feasible when the extraction devices are deployed at a large scale (e.g., several hundred km2). There is concern however that the large scale deployment of adsorbent farms could result in potential impacts to the hydrodynamic flow field in an oceanic setting. In this study, a kelp-type structure module was incorporated into a coastal ocean model to simulate the blockage effect of uranium extraction devices on the flow field. The module was quantitatively validated against laboratory flume experiments for both velocity and turbulence profiles. The model-data comparison showed an overall good agreement and validated the approach of applying the model to assess the potential hydrodynamic impact of uranium extraction devices or other underwater structures in coastal oceans.

  12. RSMASS system model development

    SciTech Connect (OSTI)

    Marshall, A.C.; Gallup, D.R.

    1998-07-01T23:59:59.000Z

    RSMASS system mass models have been used for more than a decade to make rapid estimates of space reactor power system masses. This paper reviews the evolution of the RSMASS models and summarizes present capabilities. RSMASS has evolved from a simple model used to make rough estimates of space reactor and shield masses to a versatile space reactor power system model. RSMASS uses unique reactor and shield models that permit rapid mass optimization calculations for a variety of space reactor power and propulsion systems. The RSMASS-D upgrade of the original model includes algorithms for the balance of the power system, a number of reactor and shield modeling improvements, and an automatic mass optimization scheme. The RSMASS-D suite of codes cover a very broad range of reactor and power conversion system options as well as propulsion and bimodal reactor systems. Reactor choices include in-core and ex-core thermionic reactors, liquid metal cooled reactors, particle bed reactors, and prismatic configuration reactors. Power conversion options include thermoelectric, thermionic, Stirling, Brayton, and Rankine approaches. Program output includes all major component masses and dimensions, efficiencies, and a description of the design parameters for a mass optimized system. In the past, RSMASS has been used as an aid to identify and select promising concepts for space power applications. The RSMASS modeling approach has been demonstrated to be a valuable tool for guiding optimization of the power system design; consequently, the model is useful during system design and development as well as during the selection process. An improved in-core thermionic reactor system model RSMASS-T is now under development. The current development of the RSMASS-T code represents the next evolutionary stage of the RSMASS models. RSMASS-T includes many modeling improvements and is planned to be more user-friendly. RSMASS-T will be released as a fully documented, certified code at the end of 1998. A radioisotope space power system model RISMASS is also under development. RISMASS will optimize and predict system masses for radioisotope power sources coupled with close-spaced thermionic diodes. Although RSMASS-D models have been developed for a broad variety of space nuclear power and propulsion systems, only a few concepts will be included in the releasable RSMASS-T computer code. A follow-on effort is recommended to incorporate all previous models as well as solar power system models into one general code. The proposed Space Power and propulsion system MASS (SPMASS) code would provide a consistent analysis tool for comparing a very broad range of alternative power and propulsion systems for any required power level and operating conditions. As for RSMASS-T the SPMASS model should be a certified, fully documented computer code available for general use. The proposed computer program would provide space mission planners with the capability to quickly and cost effectively explore power system options for any space mission. The code should be applicable for power requirements from as low as a few milliwatts (solar and isotopic system options) to many megawatts for reactor power and propulsion systems.

  13. Offshore Wind Jobs and Economic Development Impact: Four Regional Scenarios (Presentation)

    SciTech Connect (OSTI)

    Tegen, S.

    2014-11-01T23:59:59.000Z

    NREL's Jobs and Economic Development Impact (JEDI) Model for Offshore Wind, is a computer tool for studying the economic impacts of fixed-bottom offshore wind projects in the United States. This presentation provides the results of an analysis of four offshore wind development scenarios in the Southeast Atlantic, Great Lakes, Mid-Atlantic, and Gulf of Mexico regions.

  14. Aerosol cluster impact and break-up : model and implementation.

    SciTech Connect (OSTI)

    Lechman, Jeremy B.

    2010-10-01T23:59:59.000Z

    In this report a model for simulating aerosol cluster impact with rigid walls is presented. The model is based on JKR adhesion theory and is implemented as an enhancement to the granular (DEM) package within the LAMMPS code. The theory behind the model is outlined and preliminary results are shown. Modeling the interactions of small particles is relevant to a number of applications (e.g., soils, powders, colloidal suspensions, etc.). Modeling the behavior of aerosol particles during agglomeration and cluster dynamics upon impact with a wall is of particular interest. In this report we describe preliminary efforts to develop and implement physical models for aerosol particle interactions. Future work will consist of deploying these models to simulate aerosol cluster behavior upon impact with a rigid wall for the purpose of developing relationships for impact speed and probability of stick/bounce/break-up as well as to assess the distribution of cluster sizes if break-up occurs. These relationships will be developed consistent with the need for inputs into system-level codes. Section 2 gives background and details on the physical model as well as implementations issues. Section 3 presents some preliminary results which lead to discussion in Section 4 of future plans.

  15. LEDSGP/analysis/impacts/DIAWebinar on Development Impact Assessment...

    Open Energy Info (EERE)

    Because governments' development priorities are the drivers behind LEDS, optimization tools used for LEDS should incorporate development benefits to reflect this...

  16. DOE Announces Webinars on an Offshore Wind Economic Impacts Model...

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

    an Offshore Wind Economic Impacts Model, Resources for Tribal Energy Efficiency Projects, and More DOE Announces Webinars on an Offshore Wind Economic Impacts Model, Resources for...

  17. Wind Farm Power System Model Development: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Butterfield, C. P.

    2004-07-01T23:59:59.000Z

    In some areas, wind power has reached a level where it begins to impact grid operation and the stability of local utilities. In this paper, the model development for a large wind farm will be presented. Wind farm dynamic behavior and contribution to stability during transmission system faults will be examined.

  18. Stakeholder Engagement and Outreach Webinar: Jobs and Economic Development Impacts of Offshore Wind

    Office of Energy Efficiency and Renewable Energy (EERE)

    Starting more than a year ago, NREL initiated work to expand the Jobs and Economic Development Impacts (JEDI) model to include fixed-bottom offshore wind technology. Following the completion of the...

  19. Tools for dynamic model development

    E-Print Network [OSTI]

    Schaber, Spencer Daniel

    2014-01-01T23:59:59.000Z

    For this thesis, several tools for dynamic model development were developed and analyzed. Dynamic models can be used to simulate and optimize the behavior of a great number of natural and engineered systems, from the ...

  20. The energy and CO2 emissions impact of renewable energy development in China*

    E-Print Network [OSTI]

    The energy and CO2 emissions impact of renewable energy development in China* Tianyu Qi, Xiliang: globalchange@mit.edu Website: http://globalchange.mit.edu/ #12;The energy and CO2 emissions impact of renewable February 2014 Keywords: China Renewable energy CO2 emissions CGE modeling a b s t r a c t China has adopted

  1. Idaho National Laboratory Research & Development Impacts

    SciTech Connect (OSTI)

    Nicole Stricker

    2015-01-01T23:59:59.000Z

    Technological advances that drive economic growth require both public and private investment. The U.S. Department of Energy’s national laboratories play a crucial role by conducting the type of research, testing and evaluation that is beyond the scope of regulators, academia or industry. Examples of such work from the past year can be found in these pages. Idaho National Laboratory’s engineering and applied science expertise helps deploy new technologies for nuclear energy, national security and new energy resources. Unique infrastructure, nuclear material inventory and vast expertise converge at INL, the nation’s nuclear energy laboratory. Productive partnerships with academia, industry and government agencies deliver high-impact outcomes. This edition of INL’s Impacts magazine highlights national and regional leadership efforts, growing capabilities, notable collaborations, and technology innovations. Please take a few minutes to learn more about the critical resources and transformative research at one of the nation’s premier applied science laboratories.

  2. Simon Thoma Implementation and Impact of the Millennium Development Goals on Development Policies in Pakistan

    E-Print Network [OSTI]

    Richner, Heinz

    in Pakistan Implementation and Impact of the Millennium Development Goals on Development Policies in Pakistan are asked to make special efforts to move towards the Goals. Pakistan as a developing country faces many in Pakistan. The first research hypothesis states that the Goals do not have a direct impact on development

  3. Modelling sustainable development Ivar Ekeland

    E-Print Network [OSTI]

    Ekeland, Ivar

    Modelling sustainable development Ivar Ekeland www.ceremade.dauphine.fr/~ekeland CERMADE.ceremade.dauphine.fr/~ekeland (CERMADE, Universite Paris-Dauphine)Modelling sustainable development Collloque Sorin, IHP, Juin 2012 1 / 17 #12;Sustainable development The de...nition given by the Brundtland commision to the UN (1987

  4. Wind Energy Development and its Impacts on Wildlife

    E-Print Network [OSTI]

    Gray, Matthew

    1 Wind Energy Development and its Impacts on Wildlife Carrie Lowe, M.S. Candidate UniversityOutline · Introduction · Wind energy in the U.S. I t ildlif· Impacts on wildlife · Guidelines · Future directions · References IntroductionIntroduction What is wind energy? · The process by which turbines convert the kinetic

  5. Economic Impacts of Wind Turbine Development in U.S. Counties

    SciTech Connect (OSTI)

    J., Brown; B., Hoen; E., Lantz; J., Pender; R., Wiser

    2011-07-25T23:59:59.000Z

    The objective is to address the research question using post-project construction, county-level data, and econometric evaluation methods. Wind energy is expanding rapidly in the United States: Over the last 4 years, wind power has contributed approximately 35 percent of all new electric power capacity. Wind power plants are often developed in rural areas where local economic development impacts from the installation are projected, including land lease and property tax payments and employment growth during plant construction and operation. Wind energy represented 2.3 percent of the U.S. electricity supply in 2010, but studies show that penetrations of at least 20 percent are feasible. Several studies have used input-output models to predict direct, indirect, and induced economic development impacts. These analyses have often been completed prior to project construction. Available studies have not yet investigated the economic development impacts of wind development at the county level using post-construction econometric evaluation methods. Analysis of county-level impacts is limited. However, previous county-level analyses have estimated operation-period employment at 0.2 to 0.6 jobs per megawatt (MW) of power installed and earnings at $9,000/MW to $50,000/MW. We find statistically significant evidence of positive impacts of wind development on county-level per capita income from the OLS and spatial lag models when they are applied to the full set of wind and non-wind counties. The total impact on annual per capita income of wind turbine development (measured in MW per capita) in the spatial lag model was $21,604 per MW. This estimate is within the range of values estimated in the literature using input-output models. OLS results for the wind-only counties and matched samples are similar in magnitude, but are not statistically significant at the 10-percent level. We find a statistically significant impact of wind development on employment in the OLS analysis for wind counties only, but not in the other models. Our estimates of employment impacts are not precise enough to assess the validity of employment impacts from input-output models applied in advance of wind energy project construction. The analysis provides empirical evidence of positive income effects at the county level from cumulative wind turbine development, consistent with the range of impacts estimated using input-output models. Employment impacts are less clear.

  6. Environmental Impacts of Increased Hydroelectric Development...

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

    initiative promoting development at eXisting dams. 9 6 Turbine passage and mortality of fish. American Electric Power, Inc. . . . . Source: 15 7 Air emissions from electric...

  7. China Refrigerator Information Label: Specification Development and Potential Impact

    SciTech Connect (OSTI)

    Fridley, David; Fridley, David; Zheng, Nina; Zhou, Nan; Aden, Nathaniel; Lin, Jiang; Jianhong, Cheng; Sakamoto, Tomoyuki

    2008-02-01T23:59:59.000Z

    In the last five years, China's refrigerator market has grown rapidly, and now urban markets are showing signs of saturation, with ownership rates in urban households reaching 92%. Rural markets continue to grow from a much lower base. As a result of this growth, the Chinese government in 2006 decided to revise the refrigerator standards and its associated efficiency grades for the mandatory energy information label. In the Chinese standards process, the efficiency grades for the information label are tied to the minimum standards. Work on the minimum standards revision began in 2006 and continued through the first half of 2007, when the draft standard was completed under the direction of the China National Institute of Standardization (CNIS). Development of the information label grades required consideration of stakeholder input, continuity with the previous grade classification, ease of implementation, and potential impacts on the market. In this process, CLASP, with the support of METI/IEEJ, collaborated with CNIS to develop the efficiency grades, providing technical input to the process, comment and advice on particular technical issues, and evaluation of the results. After three months of effort and three drafts of the final grade specifications, this work was completed. In addition, in order to effectively evaluate the impact of the label on China's market, CLASP further provided assistance to CNIS to collect data on both the efficiency distribution and product volume distribution of refrigerators on the market. The new information label thresholds to be implemented in 2008 maintain the approach first adopted in 2005 of establishing efficiency levels relative to the minimum standard, but increased the related required efficiency levels by 20% over those established in 2003 and implemented in 2005. The focus of improvement was on the standard refrigerator/freezer (class 5), which constitutes the bulk of the Chinese market. Indeed, the new requirements to achieve grade 1 on the label are now virtually as stringent as those for US Energy Star-qualified or EU A-grade refrigerators. When the energy information label went into effect in March 2005, refrigerator manufacturers were required to display their declared level of efficiency on the label and report it to the China Energy Label Center (CELC), a newly established unit of CNIS responsible for label program management. Because of the visible nature of the label, it was found, through a METI/IEEJ-supported study, that MEPS non-compliance dropped from 4% to zero after the label became mandatory, and that the percentage of higher-grade refrigerators increased. This suggests that the label itself does have potential for shifting the market to higher-efficiency models (Lin 2007). One challenge, however, of assessing this potential impact is the lack of a comprehensive baseline of market efficiency and a program to evaluate the market impact on a yearly basis. As a result, the impact evaluation in this study draws upon the market transformation experience of the related EU energy information label, for which quantitative assessments of its market impact exist. By assuming a parallel process unfolding in China, it is possible to look at the potential impact of the label to 2020. The results of the analysis demonstrates that a robust market transformation program in China focused on the energy information label could save substantial amounts of electricity by 2020, totaling 16.4 TWh annually by that year, compared to a case in which the efficiency distribution of refrigerators was frozen at the 2007 level. Remarkably, the impact of a successful market transformation program with the label would essentially flatten the consumption of electricity for refrigerator use throughout most of the next decade, despite the expectations of continued growth in total stock by nearly 190 million units. At the end of this period, total consumption begins to rise again, as the least efficient of the units have been mostly removed from the market. Such a level of savings would reduce CO{sub

  8. Environmental impact assessment of the Dulang oilfield development project

    SciTech Connect (OSTI)

    Hasan, M.N. (U. Kebangsaan Malaysia (MY)); (Ismail, M.Y. (Petronas Cangali Sdn. Bhd. (MY)))

    1988-01-01T23:59:59.000Z

    The authors discuss an environmental impact assessment (EIA) of the Dulang Oilfield Development Project, conducted to determine whether the project could proceed in a safe and environmentally acceptable manner. This is the first EIA for an offshore oilfield in Malaysian waters, and was conducted in anticipation of the Environmental Quality (Prescribed Activities) (Environmental Impact Assessment Order(1987)) which requires an EIA to be conducted for major oil and gas field development projects.

  9. Development of a comprehensive weld process model

    SciTech Connect (OSTI)

    Radhakrishnan, B.; Zacharia, T.; Paul, A.

    1997-05-01T23:59:59.000Z

    This cooperative research and development agreement (CRADA) between Concurrent Technologies Corporation (CTC) and Lockheed Martin Energy Systems (LMES) combines CTC`s expertise in the welding area and that of LMES to develop computer models and simulation software for welding processes. This development is of significant impact to the industry, including materials producers and fabricators. The main thrust of the research effort was to develop a comprehensive welding simulation methodology. A substantial amount of work has been done by several researchers to numerically model several welding processes. The primary drawback of most of the existing models is the lack of sound linkages between the mechanistic aspects (e.g., heat transfer, fluid flow, and residual stress) and the metallurgical aspects (e.g., microstructure development and control). A comprehensive numerical model which can be used to elucidate the effect of welding parameters/conditions on the temperature distribution, weld pool shape and size, solidification behavior, and microstructure development, as well as stresses and distortion, does not exist. It was therefore imperative to develop a comprehensive model which would predict all of the above phenomena during welding. The CRADA built upon an already existing three-dimensional (3-D) welding simulation model which was developed by LMES which is capable of predicting weld pool shape and the temperature history in 3-d single-pass welds. However, the model does not account for multipass welds, microstructural evolution, distortion and residual stresses. Additionally, the model requires large resources of computing time, which limits its use for practical applications. To overcome this, CTC and LMES have developed through this CRADA the comprehensive welding simulation model described above.

  10. Impact of horizontal groundwater flow and localized deforestation on the development of shallow

    E-Print Network [OSTI]

    Bense, Victor

    Impact of horizontal groundwater flow and localized deforestation on the development of shallow that develop in the shallow subsurface as a result of localized deforestation in combination with shallow horizontal groundwater flow. Model results show how a patch-wise pattern of deforestation at the surface

  11. Oral English development and its impact on emergent reading achievement: a comparative study of transitional bilingual and structured english immersion models

    E-Print Network [OSTI]

    Tong, Fuhui

    2009-05-15T23:59:59.000Z

    This quantitative study derived from an on-going federal experimental research project targeting Spanish-speaking English language learners (ELLs) receiving services in four program models: control/experimental transitional bilingual education (TBE...

  12. HTL Model Development

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGrid Integration0-1HAWAI'IHMAX1.3.4.100 HTL Model

  13. Theoretical model for plasma expansion generated by hypervelocity impact

    SciTech Connect (OSTI)

    Ju, Yuanyuan; Zhang, Qingming, E-mail: qmzhang@bit.edu.cn; Zhang, Dongjiang; Long, Renrong; Chen, Li; Huang, Fenglei [State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081 (China); Gong, Zizheng [National Key Laboratory of Science and Technology on Reliability and Environment Engineering, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094 (China)

    2014-09-15T23:59:59.000Z

    The hypervelocity impact experiments of spherical LY12 aluminum projectile diameter of 6.4?mm on LY12 aluminum target thickness of 23?mm have been conducted using a two-stage light gas gun. The impact velocity of the projectile is 5.2, 5.7, and 6.3?km/s, respectively. The experimental results show that the plasma phase transition appears under the current experiment conditions, and the plasma expansion consists of accumulation, equilibrium, and attenuation. The plasma characteristic parameters decrease as the plasma expands outward and are proportional with the third power of the impact velocity, i.e., (T{sub e}, n{sub e})???v{sub p}{sup 3}. Based on the experimental results, a theoretical model on the plasma expansion is developed and the theoretical results are consistent with the experimental data.

  14. DEVELOPMENT IMPACT FEE ADOPTION AND ITS EFFECTS IN TEXAS

    E-Print Network [OSTI]

    Ambs, Jonathan G.

    2010-01-20T23:59:59.000Z

    as the dependent variable and the second model looked at the total impact fee assed on new residential units as the dependent variable. Both models used the gross tax rate, debt per capita, change in city population as a percentage, city population, average price...

  15. Climate Impact of Transportation A Model Comparison

    SciTech Connect (OSTI)

    Girod, Bastien; Van Vuuren, Detlef; Grahn, Maria; Kitous, Alban; Kim, Son H.; Kyle, G. Page

    2013-06-01T23:59:59.000Z

    Transportation contributes to a significant and rising share of global energy use and GHG emissions. Therefore modeling future travel demand, its fuel use, and resulting CO2 emission is highly relevant for climate change mitigation. In this study we compare the baseline projections for global service demand (passenger-kilometers, ton-kilometers), fuel use, and CO2 emissions of five different global transport models using harmonized input assumptions on income and population. For four models we also evaluate the impact of a carbon tax. All models project a steep increase in service demand over the century. Technology is important for limiting energy consumption and CO2 emissions, but quite radical changes in the technology mix are required to stabilize or reverse the trend. While all models project liquid fossil fuels dominating up to 2050, they differ regarding the use of alternative fuels (natural gas, hydrogen, biofuels, and electricity), because of different fuel price projections. The carbon tax of US$200/tCO2 in 2050 stabilizes or reverses global emission growth in all models. Besides common findings many differences in the model assumptions and projections indicate room for improvement in modeling and empirical description of the transport system.

  16. Geothermal Electricity Technology Evaluation Model (GETEM) Development...

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

    Electricity Technology Evaluation Model (GETEM) Development Geothermal Electricity Technology Evaluation Model (GETEM) Development Project objective: Provide a tool for estimating...

  17. The impact of oil on a developing country

    SciTech Connect (OSTI)

    Ikein, A.

    1990-01-01T23:59:59.000Z

    This book provides an analysis of the impact of the oil industry on a particular developing country, Nigeria over a period of 32 years. Arguing that previous studies on the oil industry in developing countries have tended to focus only on the economic significance of oil, ignoring its societal costs, the author uses a multidimensional approach that enables him to identify the linkage between the performance of the oil industry and the pattern of Nigeria's national and regional development.

  18. Tourism's Impact on Economic Growth and Development in Spain

    E-Print Network [OSTI]

    New Hampshire, University of

    Tourism's Impact on Economic Growth and Development in Spain Jessica Dennis #12;Spanish Civil War as a % of Spain's GDP #12;50,000,000 5,050,000,000 10,050,000,000 15,050,000,000 20,050,000,000 25,050,000,000 30 International Tourism Receipts, Foreign Direct Investment Reciepts & Remittances as % of Spain's GDP Int

  19. Volume 9: A Review of Socioeconomic Impacts of Oil Shale Development WESTERN OIL SHALE DEVELOPMENT: A TECHNOLOGY ASSESSMENT

    SciTech Connect (OSTI)

    Rotariu,, G. J.

    1982-02-01T23:59:59.000Z

    The development of an oil shale industry in northwestern Colorado and northeastern Utah has been forecast at various times since early this century, but the comparatively easy accessibility of other oil sources has forestalled development. Decreasing fuel supplies, increasing energy costs, and the threat of a crippling oil embargo finally may launch a commercial oil shale industry in this region. Concern for the possible impacts on the human environment has been fostered by experiences of rapid population growth in other western towns that have hosted energy resource development. A large number of studies have attempted to evaluate social and economic impacts of energy development and to determine important factors that affect the severity of these impacts. These studies have suggested that successful management of rapid population growth depends on adequate front-end capital for public facilities, availability of housing, attention to human service needs, long-range land use and fiscal planning. This study examines variables that affect the socioeconomic impacts of oil shale development. The study region is composed of four Colorado counties: Mesa, Moffat, Garfield and Rio Blanco. Most of the estimated population of 111 000 resides in a handful of urban areas that are separated by large distances and rugged terrain. We have projected the six largest cities and towns and one planned company town (Battlement Mesa) to be the probable centers for potential population impacts caused by development of an oil shale industry. Local planners expect Battlement Mesa to lessen impacts on small existing communities and indeed may be necessary to prevent severe regional socioeconomic impacts. Section II describes the study region and focuses on the economic trends and present conditions in the area. The population impacts analyzed in this study are contingent on a scenario of oil shale development from 1980-90 provided by the Department of Energy and discussed in Sec. III. We recognize that the rate of development, the magnitude of development, and the technology mix that will actually take place remain uncertain. Although we emphasize that other energy and mineral resources besides oil shale may be developed, the conclusions reached in this study reflect only those impacts that would be felt from the oil shale scenario. Socioeconomic impacts in the region reflect the uneven growth rate implied by the scenario and will be affected by the timing of industry developments, the length and magnitude of the construction phase of development, and the shift in employment profiles predicted in the scenario. The facilities in the southern portion of the oil shale region, those along the Colorado River and Parachute Creek, show a peak in the construction work force in the mid-1980s, whereas those f acil it i es in the Piceance Creek Bas into the north show a construction peak in the late 1980s. Together, the facilities will require a large construction work force throughout the decade, with a total of 4800 construction workers required in 1985. Construction at the northern sites and second phase construction in the south will require 6000 workers in 1988. By 1990, the operation work force will increase to 7950. Two important characteristics of oil shale development emerge from the work force estimates: (1) peak-year construction work forces will be 90-120% the size of the permanent operating work force; and (2) the yearly changes in total work force requirements will be large, as much as 900 in one year at one facility. To estimate population impacts on individual communities, we devised a population distribution method that is described in Sec. IV. Variables associated with the projection of population impacts are discussed and methodologies of previous assessments are compared. Scenario-induced population impacts estimated by the Los Alamos method are compared to projections of a model employed by the Colorado West Area Council of Governments. Oil shale development in the early decade, as defined by the scenario, will produce growth primarily

  20. OSPREY Model Development Status Update

    SciTech Connect (OSTI)

    Veronica J Rutledge

    2014-04-01T23:59:59.000Z

    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.

  1. WINDExchange: Jobs and Economic Development Impact Models

    Wind Powering America (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells, Wisconsin:Deployment Activities Printable80 m 01-APR-2011

  2. Cumulative biological impacts of The Geysers geothermal development

    SciTech Connect (OSTI)

    Brownell, J.A.

    1981-10-01T23:59:59.000Z

    The cumulative nature of current and potential future biological impacts from full geothermal development in the steam-dominated portion of The Geysers-Calistoga KGRA are identified by the California Energy Commission staff. Vegetation, wildlife, and aquatic resources information have been reviewed and evaluated. Impacts and their significance are discussed and staff recommendations presented. Development of 3000 MW of electrical energy will result in direct vegetation losses of 2790 acres, based on an estimate of 11.5% loss per lease-hold of 0.93 acres/MW. If unmitigated, losses will be greater. Indirect vegetation losses and damage occur from steam emissions which contain elements (particularly boron) toxic to vegetation. Other potential impacts include chronic low-level boron exposure, acid rain, local climate modification, and mechanical damage. A potential exists for significant reduction and changes in wildlife from direct habitat loss and development influences. Highly erosive soils create the potential for significant reduction of aquatic resources, particularly game fish. Toxic spills have caused some temporary losses of aquatic species. Staff recommends monitoring and implementation of mitigation measures at all geothermal development stages.

  3. Development of a Comprehensive Weld Process Model

    SciTech Connect (OSTI)

    Radhakrishnan, B.; Zacharia, T.

    1997-05-01T23:59:59.000Z

    This cooperative research and development agreement (CRADA) between Concurrent Technologies Corporation (CTC) and Lockheed Martin Energy Systems (LMES) combines CTC's expertise in the welding area and that of LMES to develop computer models and simulation software for welding processes. This development is of significant impact to the industry, including materials producers and fabricators. The main thrust of the research effort was to develop a comprehensive welding simulation methodology. A substantial amount of work has been done by several researchers to numerically model several welding processes. The primary drawback of most of the existing models is the lack of sound linkages between the mechanistic aspects (e.g., heat transfer, fluid flow, and residual stress) and the metallurgical aspects (e.g., microstructure development and control). A comprehensive numerical model which can be used to elucidate the effect of welding parameters/conditions on the temperature distribution, weld pool shape and size, solidification behavior, and microstructure development, as well as stresses and distortion, does not exist. It was therefore imperative to develop a comprehensive model which would predict all of the above phenomena during welding. The CRADA built upon an already existing three- dimensional (3-D) welding simulation model which was developed by LMES which is capable of predicting weld pool shape and the temperature history in 3-d single-pass welds. However, the model does not account for multipass welds, microstructural evolution, distortion and residual stresses. Additionally, the model requires large resources of computing time, which limits its use for practical applications. To overcome this, CTC and LMES have developed through this CRADA the comprehensive welding simulation model described above. The following technical tasks have been accomplished as part of the CRADA. 1. The LMES welding code has been ported to the Intel Paragon parallel computer at ORNL. The timing results illustrate the potential of the modified computer model for the analysis of large-scale welding simulations. 2. The kinetics of grain structure evolution in the weld heat affected zone (HAZ) has been simulated with reasonable accuracy by coupling an improved MC grain growth algorithm with a methodology for converting the MC parameters of grain size and time to real parameters. The simulations effectively captured the thermal pinning phenomenon that has been reported in the weld HAZ. 3. A cellular automaton (CA) code has been developed to simulate the solidification microstructure in the weld fusion zone. The simulations effectively captured the epitaxial growth of the HAZ grains, the grain selection mechanism, and the formation of typical grain structures observed in the weld t%sion zone. 4. The point heat source used in the LMES welding code has ben replaced with a distributed heat source to better capture the thermal characteristics and energy distributions in a commercial welding heat source. 5. Coupled thermal-mechanical and metallurgical models have been developed to accurately predict the weld residual stresses, and 6. Attempts have been made to integrate the newly developed computational capabilities into a comprehensive weld design tool.

  4. Modelling the impact of user behaviour on heat energy consumption

    E-Print Network [OSTI]

    Combe, Nicola Miss; Harrison, David Professor; Way, Celia Miss

    2011-01-01T23:59:59.000Z

    USA MODELLING THE IMPACT OF USER BEHAVIOUR ON HEAT ENERGY CONSUMPTIONUSA The second point of interest to research was modelling the excess energy consumptionUSA Figure 3. Actual heating and hot water energy consumption

  5. Researchers Model Impact of Aerosols Over California

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

    Impact of Aerosols Over California Research may clarify the effectiveness of regional pollution controls May 28, 2013 | Tags: Climate Research, Hopper Contact: Linda Vu,...

  6. Development of a Dynamic DOE Calibration Model

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

    cell characterization * Train and validate dynamic models * Apply models for system optimization Results * Dynamic emissions models have been developed (validation error on the...

  7. Public service impacts of geothermal development: cumulative impacts study of the Geysers KGRA. Final staff report

    SciTech Connect (OSTI)

    Matthews, K.M.

    1983-07-01T23:59:59.000Z

    The number of workers currently involved in the various aspects of geothermal development in the Geysers are identified. Using two different development scenarios, projections are made for the number of power plants needed to reach the electrical generation capacity of the steam resource in the Geysers. The report also projects the cumulative number of workers needed to develop the steam field and to construct, operate, and maintain these power plants. Although the number of construction workers fluctuates, most are not likely to become new, permanent residents of the KGRA counties. The administrative and public service costs of geothermal development to local jurisdications are examined, and these costs are compared to geothermal revenues accruing to the local governments. Revenues do not cover the immediate fiscal needs resulting from increases in local road maintenance and school enrollment attributable to geothermal development. Several mitigation options are discussed and a framework presented for calculating mitigation costs for school and road impacts.

  8. A Study of the Economic Impact of Water Impoundment Through Validity Testing of a Comparitive-Projection Model

    E-Print Network [OSTI]

    Pearson, J. E.; Heideman, K. E.

    An established economic simulation model for reservoir development was applied to ten reservoir projects throughout Texas. The model as a predictor of economic impact was given a difficult test because of the diversity of geographic, economic...

  9. A Study of the Economic Impact of Water Impoundment Through Validity Testing of a Comparitive-Projection Model 

    E-Print Network [OSTI]

    Pearson, J. E.; Heideman, K. E.

    1969-01-01T23:59:59.000Z

    An established economic simulation model for reservoir development was applied to ten reservoir projects throughout Texas. The model as a predictor of economic impact was given a difficult test because of the diversity of ...

  10. Environ. Impact Asses. Rev., Vol. 38, Jan. 2013, p. 35-43. Developing an indicator for the chronic health impact

    E-Print Network [OSTI]

    Boyer, Edmond

    of this study is to develop an emission based indicator for the health impact of the air pollution caused and reliability. Key words: Health impact, indicator, air pollution, traffic-related emissions 1. Introduction health impact of traffic-related pollutant emissions Véronique Lépicier a , Mireille Chiron b, 1 , Robert

  11. Modeling National Impacts for the Building America Program

    SciTech Connect (OSTI)

    Coughlin, Katie M.; McNeil, Michael A.

    2006-06-15T23:59:59.000Z

    In this paper we present a model to estimate the nationalenergy and economic impacts of the Department of Energy Building Americaprogram. The program goal is to improve energy performance in newresidential construction, by working with builders to design andconstruct energy-efficient homes at minimal cost. The model is anadaptation of the method used to calculate the national energy savingsfor appliance energy efficiency standards. The main difference is thatthe key decision here is not the consumer decision to buy anefficienthouse, but rather the builder decision to offer such a house inthe market. The builder decision is treated by developing a number ofscenarios in which the relative importance of first costs vs. energysavings is varied.

  12. Accident Sequence Precursor Program Large Early Release Frequency Model Development

    SciTech Connect (OSTI)

    Brown, T.D.; Brownson, D.A.; Duran, F.A.; Gregory, J.J.; Rodrick, E.G.

    1999-01-04T23:59:59.000Z

    The objectives for the ASP large early release frequency (LERF) model development work is to build a Level 2 containment response model that would capture all of the events necessary to define LERF as outlined in Regulatory Guide 1.174, can be directly interfaced with the existing Level 1 models, is technically correct, can be readily modified to incorporate new information or to represent another plant, and can be executed in SAPHIRE. The ASP LERF models being developed will meet these objectives while providing the NRC with the capability to independently assess the risk impact of plant-specific changes proposed by the utilities that change the nuclear power plants' licensing basis. Together with the ASP Level 1 models, the ASP LERF models provide the NRC with the capability of performing equipment and event assessments to determine their impact on a plant's LERF for internal events during power operation. In addition, the ASP LERF models are capable of being updated to reflect changes in information regarding the system operations and phenomenological events, and of being updated to assess the potential for early fatalities for each LERF sequence. As the ASP Level 1 models evolve to include more analysis capabilities, the LERF models will also be refined to reflect the appropriate level of detail needed to demonstrate the new capabilities. An approach was formulated for the development of detailed LERF models using the NUREG-1150 APET models as a guide. The modifications to the SAPHIRE computer code have allowed the development of these detailed models and the ability to analyze these models in a reasonable time. Ten reference LERF plant models, including six PWR models and four BWR models, which cover a wide variety of containment and nuclear steam supply systems designs, will be complete in 1999. These reference models will be used as the starting point for developing the LERF models for the remaining nuclear power plants.

  13. Modeling impact of urban air pollution on health

    E-Print Network [OSTI]

    Menut, Laurent

    Modeling impact of urban air pollution on health: Preliminary results and testing a methodology with hospitals for the study of air pollution impact on specific deceases (old people admitted in emergency morbidity data and pollutants concentrations at the regional/urban scale Health and air quality in France

  14. Economic Development Impacts of Community Wind Projects: A Review and Empirical Evaluation

    SciTech Connect (OSTI)

    Lantz, E.; Tegen, S.

    2009-01-01T23:59:59.000Z

    Community wind projects have long been touted (both anecdotally and in the literature) to increase the economic development impacts of wind projects, but most analyses of community wind have been based on expected results from hypothetical projects. This report provides a review of previous economic development analyses of community wind projects and compares these projected results with empirical impacts from projects currently in operation. A review of existing literature reveals two primary conclusions. First, construction-period impacts are often thought to be comparable for both community-and absentee-owned facilities. Second, operations-period economic impacts are observed to be greater for community-owned projects. The majority of studies indicate that the range of increased operations-period impact is on the order of 1.5 to 3.4 times. New retrospective analysis of operating community wind projects finds that total employment impacts from completed community wind projects are estimated to be on the order of four to six 1-year jobs per-MW during construction and 0.3 to 0.6 long-term jobs per-MW during operations. In addition, when comparing retrospective results of community wind to hypothetical average absentee projects, construction-period employment impacts are 1.1 to 1.3 times higher and operations-period impacts are 1.1 to 2.8 times higher for community wind. Comparing the average of the completed community wind projects studied here with retrospective analysis of the first 1,000 MW of wind in Colorado and Iowa indicates that construction-period impacts are as much as 3.1 times higher for community wind, and operations-period impacts are as much as 1.8 times higher. Ultimately, wind projects are a source of jobs and economic development, and community wind projects are shown to have increased impact both during the construction and operations-period of a wind power plant. The extent of increased impact is primarily a function of local ownership and return on investment. As such, policies that prioritize higher levels of local ownership are likely to result in increased economic development impacts. Furthermore, the increased economic development impact of community wind shown here should not be undervalued. As the wind industry grows and approaches penetrations in the U.S. electricity market of 20%, social opposition to new wind power projects may increase. Community wind could provide a valuable strategy for building community support of wind power - especially in communities that are new to wind power. This analysis finds that total employment impacts from completed community wind projects are on the order of four to six 1-year jobs per-MW during construction and 0.3 to 0.6 long-term jobs per-MW during operations. Furthermore, when comparing community wind to hypothetical average absentee projects, construction-period employment impacts are 1.1 to 1.3 times higher and operations-period impacts are 1.1 to 2.8 times higher for community wind. Comparing the average of the completed projects studied here with retrospective analysis of the first 1,000 MW of wind in Colorado and Iowa shows construction-period impacts are as much as 3.1 times higher for community wind, and operations-period impacts are as much as 1.8 times higher. As the wind industry has grown, community wind has largely been a peripheral development model. However, this analysis shows that wind projects are a source of jobs and economic development, and that community wind projects have greater economic development impacts than absentee-owned projects. As such, policies that prioritize higher levels of local ownership are likely to result in increased economic development impacts. While the magnitude of increased benefit is primarily a function of local ownership and project profitability, the increased economic development impact of all community wind projects should not be undervalued. The ability of community wind projects to disperse economic impacts within the states and communities where they are built and to engage local community members

  15. Modeling environmental impact of unfired bricks in India

    E-Print Network [OSTI]

    Zachau Walker, Miriam E. (Miriam Elizabeth)

    2013-01-01T23:59:59.000Z

    Brick manufacturing requires a considerable amount of energy and land, but these numbers have been difficult to quantify in rural parts of the developing world. The environmental impact of unfired bricks in India is ...

  16. Digestion Modelling in the Small Intestine : Impact of Dietary Fibre

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Digestion Modelling in the Small Intestine : Impact of Dietary Fibre M. Taghipoor , G. Barles , C. Georgelin , J.R. Licois & Ph. Lescoat Abstract In this work, we continue the modelling of the digestion the role of dietary fibre on digestion, we model their two principal physiochemical characteristics which

  17. Ionosphere Threat to LAAS: Updated Model, User Impact, and Mitigations

    E-Print Network [OSTI]

    Stanford University

    1 Ionosphere Threat to LAAS: Updated Model, User Impact, and Mitigations Ming Luo, Sam Pullen-4], a "linear spatial gradient front" model was established and a threat space was extrapolated based on data from the 6 April 2000 ionospheric storm. User vertical error was estimated based on this threat model

  18. Graduate Opportunities in Earth Systems Modeling and Climate Impacts on Hydrology and Water Resources

    E-Print Network [OSTI]

    Graduate Opportunities in Earth Systems Modeling and Climate Impacts on Hydrology and Water research assistantships available in the general area of earth systems modeling and climate impacts

  19. Model Development Development of a system emulating the global carbon cycle in Earth system models

    E-Print Network [OSTI]

    K. Tachiiri; J. C. Hargreaves; J. D. Annan; A. Oka; A. Abe-ouchi; M. Kawamiya

    2010-01-01T23:59:59.000Z

    developed a loosely coupled model (LCM) which can represent the outputs of a GCMbased Earth system model

  20. NBER WORKING PAPER SERIES THE HOUSING MARKET IMPACTS OF SHALE GAS DEVELOPMENT

    E-Print Network [OSTI]

    Habib, Ayman

    NBER WORKING PAPER SERIES THE HOUSING MARKET IMPACTS OF SHALE GAS DEVELOPMENT Lucija Muehlenbachs © notice, is given to the source. #12;The Housing Market Impacts of Shale Gas Development Lucija to control for confounding factors, we recover hedonic estimates of property value impacts from shale gas

  1. Impact of transport model errors on the global and regional methane emissions estimated by inverse modelling

    E-Print Network [OSTI]

    Locatelli, R.

    A modelling experiment has been conceived to assess the impact of transport model errors on methane emissions estimated in an atmospheric inversion system. Synthetic methane observations, obtained from 10 different model ...

  2. Assessing Development Impacts Associated with Low Emission Development Strategies: Lessons Learned from Pilot Efforts in Kenya and Montenegro

    SciTech Connect (OSTI)

    Cox, S.; Katz, J.; Wurtenberger, L.

    2014-01-01T23:59:59.000Z

    Low emission development strategies (LEDS) articulate economy-wide policies and implementation plans designed to enable a country to meet its long-term development objectives while reducing greenhouse gas emissions. A development impact assessment tool was developed to inform an analytically robust and transparent prioritization of LEDS actions based on their economic, social, and environmental impacts. The graphical tool helps policymakers communicate the development impacts of LEDS options and identify actions that help meet both emissions reduction and development goals. This paper summarizes the adaptation and piloting of the tool in Kenya and Montenegro. The paper highlights strengths of the tool and discusses key needs for improving it.

  3. Neutrino Mass Models: Impact of non-zero reactor angle

    E-Print Network [OSTI]

    Stephen F. King

    2011-06-25T23:59:59.000Z

    In this talk neutrino mass models are reviewed and the impact of a non-zero reactor angle and other deviations from tri-bimaximal mixing are discussed. We propose some benchmark models, where the only way to discriminate between them is by high precision neutrino oscillation experiments.

  4. TOOLS TO MODEL ROAD IMPACTS Providing scientific knowledge and technology to sustain

    E-Print Network [OSTI]

    Fried, Jeremy S.

    TOOLS TO MODEL ROAD IMPACTS Providing scientific knowledge and technology to sustain our nation://www.fs.fed.us/rm/boise/AWAE_home.shtml BACKGROUND The Rocky Mountain Research Station has a long his- tory of developing tools that meet the needs. Existing tools have been optimized to answer particular man- agement questions at specific spatial scales

  5. Summary of Oil and Natural Gas Development Impacts on Prairie Grouse September 2006

    E-Print Network [OSTI]

    Beck, Jeffrey L.

    Summary of Oil and Natural Gas Development Impacts on Prairie Grouse September 2006 Jeffrey L. Beck Independent Avenue Grand Junction, CO 81505 Please cite as: Beck, J. L. 2006. Summary of oil and natural gas and Natural Gas Development Impacts on Prairie Grouse 2 disturbances such as oil and gas development

  6. Models for Tribal Energy Development Organizations | Department...

    Energy Savers [EERE]

    that significantly contribute to community economic development. Learn about available business models such as the Section 17 corporation and the tribal utility. Also, get tips...

  7. RTI International Develops SSL Luminaire Reliability Model |...

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

    is developing and validating accelerated life testing (ALT) methodologies and a reliability model for predicting the lifetime of integrated solid-state lighting...

  8. MODELING/GIS, RISK ASSESSMENT, ECONOMIC IMPACT Household Model of Chagas Disease Vectors (Hemiptera: Reduviidae)

    E-Print Network [OSTI]

    Vermont, University of

    MODELING/GIS, RISK ASSESSMENT, ECONOMIC IMPACT Household Model of Chagas Disease Vectors (Hemiptera vectors (Hemiptera: Reduviidae) of the causative parasite Trypanosoma cruzi (Kinetoplastida bitten by infected insect vectors. There are 130 species in the subfamily Triatominae (Hemiptera

  9. Telephone Flat Geothermal Development Project Environmental Impact Statement Environmental Impact Report. Final: Comments and Responses to Comments

    SciTech Connect (OSTI)

    None

    1999-02-01T23:59:59.000Z

    This document is the Comments and Responses to Comments volume of the Final Environmental Impact Statement and Environmental Impact Report prepared for the proposed Telephone Flat Geothermal Development Project (Final EIS/EIR). This volume of the Final EIS/EIR provides copies of the written comments received on the Draft EIS/EIR and the leady agency responses to those comments in conformance with the requirements of the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA).

  10. An Impact Assessment Model for Distributed Adaptive Security Situation Assessment*

    E-Print Network [OSTI]

    California at Davis, University of

    1 An Impact Assessment Model for Distributed Adaptive Security Situation Assessment* Mark Heckman mechanism is not simply to stop attacks, but to protect a computing resource so that the resource can continue to perform its function. A computing resource, however, is only a component of a larger system

  11. Original article Modelling herbicide treatment impact on groundwater

    E-Print Network [OSTI]

    Boyer, Edmond

    Original article Modelling herbicide treatment impact on groundwater quality in a central Italy of different weed control strategies on groundwater quality in a Central Italy area (Umbria) where the drinking and twenty-two weed control strategies were tested for their groundwater concentrations. Two maps reporting

  12. Development and application of earth system models

    E-Print Network [OSTI]

    Development and application of earth system models Ronald G. Prinn *Reprinted from Proceedings, 2011) The global environment is a complex and dynamic system. Earth system modeling is needed to help: globalchange@mit.edu Website: http://globalchange.mit.edu/ #12;Development and application of earth system

  13. Mesoscale Model Development and the Meteorological Community

    E-Print Network [OSTI]

    Mass, Clifford F.

    Mesoscale Model Development and the Meteorological Community Cliff Mass University of Washington: Although the U.S. remains a leader in mesoscale model development and application, the community is not fulfilling its potential. The resources of the U.S. mesoscale forecasting community are considerable

  14. Maui Electrical System Model Development

    E-Print Network [OSTI]

    1 2. Simulation Data and Assumptions 1 2.1 Economic Data and Assumptions 1 2.1.1 Thermal Plants 1 2 of the power plant FUEL_TYPE OIL-Distillate Oil (No.2); RENEW - zero cost fuel used for modeling Wind & Geoth.1.2 Independent Power Producers 2 2.1.3 Load Demand 2 2.2 Dynamics 4 2.2.1 Load Flow 4 2.2.1.1 Database Conversion

  15. The impact of multifamily development on single family home prices in the Greater Boston Area

    E-Print Network [OSTI]

    Schuur, Arah (Arah Louise Adele)

    2005-01-01T23:59:59.000Z

    The impact of large, multifamily developments on nearby single-family home prices was tested in five towns in the Greater Boston Area. Case studies that had recent multifamily developments built near transit nodes or town ...

  16. Input-Output as a Method of Evaluahon of the Economic Impact of Water Resources Development

    E-Print Network [OSTI]

    Canion, R. L.; Trock, W. L.

    In this report the results of a study of the use of input-output analysis to evaluate the economic impact of water resources development are presented. Blackburn Crossing reservoir on the Upper Neches river was the subject development...

  17. Impacts of payments for environmental services on local development in northern Costa Rica

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Impacts of payments for environmental services on local development in northern Costa Rica., Salinas Z., 2008. Impacts of payments for environmental services on local development in northern Costa mechanisms for forest environmental services are increasingly used for promoting environmental conservation

  18. AN EVALUATION OF THE WILDLIFE IMPACTS OF OFFSHORE WIND DEVELOPMENT RELATIVE TO FOSSIL FUEL

    E-Print Network [OSTI]

    Firestone, Jeremy

    AN EVALUATION OF THE WILDLIFE IMPACTS OF OFFSHORE WIND DEVELOPMENT RELATIVE TO FOSSIL FUEL POWER. Jarvis All Rights Reserved #12;AN EVALUATION OF THE WILDLIFE IMPACTS OF OFFSHORE WIND DEVELOPMENT in offshore wind energy. I would also like to thank my committee members, Dr. Jeremy Firestone

  19. Dynamical modeling of the Deep Impact dust ejecta cloud

    E-Print Network [OSTI]

    Tanyu Bonev; Nancy Ageorges; Stefano Bagnulo; Luis Barrera; Hermann B{ö}hnhardt; Olivier Hainaut; Emmanuel Jehin; Hans-Ullrich K{ä}ufl; Florian Kerber; Gaspare LoCurto; Jean Manfroid; Olivier Marco; Eric Pantin; Emanuela Pompei; Ivo Saviane; Fernando Selman; Chris Sterken; Heike Rauer; Gian Paolo Tozzi; Michael Weiler

    2007-03-21T23:59:59.000Z

    The collision of Deep Impact with comet 9P/Tempel 1 generated a bright cloud of dust which dissipated during several days after the impact. The brightness variations of this cloud and the changes of its position and shape are governed by the physical properties of the dust grains. We use a Monte Carlo model to describe the evolution of the post-impact dust plume. The results of our dynamical simulations are compared to the data obtained with FORS2, the FOcal Reducer and low dispersion Spectrograph for the VLT of the European Southern Observatory (ESO), to derive the particle size distribution and the total amount of material contained in the dust ejecta cloud.

  20. Development, evaluation, and design applications of an AMTEC converter model 

    E-Print Network [OSTI]

    Spence, Cliff Alan

    2002-01-01T23:59:59.000Z

    An AMTEC converter model was developed and its effectiveness as a design tool was evaluated. To develop the model, requirements of the model were defined, modeling equations were selected, and a methodology for model development was established...

  1. Modeling In-stream Tidal Energy Extraction and Its Potential Environmental Impacts

    SciTech Connect (OSTI)

    Yang, Zhaoqing; Wang, Taiping; Copping, Andrea; Geerlofs, Simon H.

    2014-09-30T23:59:59.000Z

    In recent years, there has been growing interest in harnessing in-stream tidal energy in response to concerns of increasing energy demand and to mitigate climate change impacts. While many studies have been conducted to assess and map tidal energy resources, efforts for quantifying the associated potential environmental impacts have been limited. This paper presents the development of a tidal turbine module within a three-dimensional unstructured-grid coastal ocean model and its application for assessing the potential environmental impacts associated with tidal energy extraction. The model is used to investigate in-stream tidal energy extraction and associated impacts on estuarine hydrodynamic and biological processes in a tidally dominant estuary. A series of numerical experiments with varying numbers and configurations of turbines installed in an idealized estuary were carried out to assess the changes in the hydrodynamics and biological processes due to tidal energy extraction. Model results indicated that a large number of turbines are required to extract the maximum tidal energy and cause significant reduction of the volume flux. Preliminary model results also indicate that extraction of tidal energy increases vertical mixing and decreases flushing rate in a stratified estuary. The tidal turbine model was applied to simulate tidal energy extraction in Puget Sound, a large fjord-like estuary in the Pacific Northwest coast.

  2. Modeling the onset of photosynthesis after the Chicxulub asteroid impact

    E-Print Network [OSTI]

    Perez, Noel; Martin, Osmel; Rojas, Reinaldo

    2012-01-01T23:59:59.000Z

    We do a preliminary modelling of the photosynthetic rates of phytoplankton at the very beginning of the Paleogene, just after the impact of the Chicxulub asteroid, which decisively contributed to the last known mass extinction of the Phanerozoic eon. We assume the worst possible scenario from the photobiological point of view: an already clear atmosphere with no ozone, as the timescale for soot and dust settling (years) is smaller than that of the full ozone regeneration (decades). Even in these conditions we show that most phytoplankton species would have had reasonable potential for photosynthesis in all the three main optical ocean water types. This modelling could help explain why the recovery of phytoplankton was relatively rapid after the huge environmental stress of that asteroid impact. In a more general scope, it also reminds us of the great resilience of the unicellular biosphere against huge environmental perturbations.

  3. Lasting social impact : Community Development Venture Capital investing

    E-Print Network [OSTI]

    Silberberg, Hattie Paige

    2008-01-01T23:59:59.000Z

    Community Development Venture Capital Funds (CDVC) funds are an emerging group of Community Development Financial Institutions, that make equity investments in businesses in economically distressed areas. As equity investors, ...

  4. Regulation mechanisms in spatial stochastic development models

    E-Print Network [OSTI]

    Dmitri Finkelshtein; Yuri Kondratiev

    2008-09-04T23:59:59.000Z

    The aim of this paper is to analyze different regulation mechanisms in spatial continuous stochastic development models. We describe the density behavior for models with global mortality and local establishment rates. We prove that the local self-regulation via a competition mechanism (density dependent mortality) may suppress a unbounded growth of the averaged density if the competition kernel is superstable.

  5. Long-term impacts of aerosols on vertical development of cloud and precipitation

    SciTech Connect (OSTI)

    Li Z.; Liu Y.; Niu, F.; Fan, J.; Rosenfeld, D.; Ding, Y.

    2011-11-13T23:59:59.000Z

    Aerosols alter cloud density and the radiative balance of the atmosphere. This leads to changes in cloud microphysics and atmospheric stability, which can either suppress or foster the development of clouds and precipitation. The net effect is largely unknown, but depends on meteorological conditions and aerosol properties. Here, we examine the long-term impact of aerosols on the vertical development of clouds and rainfall frequencies, using a 10-year dataset of aerosol, cloud and meteorological variables collected in the Southern Great Plains in the United States. We show that cloud-top height and thickness increase with aerosol concentration measured near the ground in mixed-phase clouds-which contain both liquid water and ice-that have a warm, low base. We attribute the effect, which is most significant in summer, to an aerosol-induced invigoration of upward winds. In contrast, we find no change in cloud-top height and precipitation with aerosol concentration in clouds with no ice or cool bases. We further show that precipitation frequency and rain rate are altered by aerosols. Rain increases with aerosol concentration in deep clouds that have a high liquid-water content, but declines in clouds that have a low liquid-water content. Simulations using a cloud-resolving model confirm these observations. Our findings provide unprecedented insights of the long-term net impacts of aerosols on clouds and precipitation.

  6. The process of and barriers to environmentally-oriented real estate development : examining the role of organizational structure, project delivery methods and contracts in low impact development

    E-Print Network [OSTI]

    Singh, Charu, M.C.P. Massachusetts Institute of Technology

    2006-01-01T23:59:59.000Z

    Low Impact Development (LID) is a site planning approach that limits the environmental impact of development on the local hydrological regime. By preserving and mimicking natural landscape features, LID introduces a new ...

  7. Shale Gas Development Challenges: Surface Impacts | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO Overview OCHCO OverviewRepositoryManagement | Department of Energy SevenSurface Impacts

  8. Environmental Impacts of Wind Power Development on the Population...

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

    chickens. windpowerprairiechickens.pdf More Documents & Publications Sage-Grouse and Wind Energy: Biology, Habits, and Potential Effects from Development EIS-0485: Draft...

  9. Telephone Flat Geothermal Development Project Environmental Impact Statement Environmental Impact Report. Final

    SciTech Connect (OSTI)

    None

    1999-02-01T23:59:59.000Z

    This Final Environmental Impact Statement and Environmental Impact Report (Final EIS/EIR) has been prepared to meet the requirements of the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA). The Proposed Action includes the construction, operation, and decommissioning of a 48 megawatt (gross) geothermal power plant with ancillary facilities (10-12 production well pads and 3-5 injection well pads, production and injection pipelines), access roads, and a 230-kilovolt (kV) transmission line in the Modoc National Forest in Siskiyou County, California. Alternative locations for the power plant site within a reasonable distance of the middle of the wellfield were determined to be technically feasible. Three power plant site alternatives are evaluated in the Final EIS/EIR.

  10. The development of a methodology to quantify the impacts of information management strategies on EPC projects 

    E-Print Network [OSTI]

    Moreau, Karen Anne

    1997-01-01T23:59:59.000Z

    This research develops and demonstrates a methodology to quantify time and cost impacts on Engineering, Procurement, and Construction (EPC) projects resulting from information management driven process changes in design related activities. Many...

  11. The development of a methodology to quantify the impacts of information management strategies on EPC projects

    E-Print Network [OSTI]

    Moreau, Karen Anne

    1997-01-01T23:59:59.000Z

    This research develops and demonstrates a methodology to quantify time and cost impacts on Engineering, Procurement, and Construction (EPC) projects resulting from information management driven process changes in design related activities. Many...

  12. NREL Develops Heat Pump Water Heater Simulation Model (Fact Sheet)

    SciTech Connect (OSTI)

    Hudon, K.

    2012-05-01T23:59:59.000Z

    A new simulation model helps researchers evaluate real-world impacts of heat pump water heaters in U.S. homes.

  13. Methods for modeling impact-induced reactivity changes in small reactors.

    SciTech Connect (OSTI)

    Tallman, Tyler N.; Radel, Tracy E.; Smith, Jeffrey A.; Villa, Daniel L.; Smith, Brandon M. (U. of Wisconsin, Madison, WI); Radel, Ross F.; Lipinski, Ronald J.; Wilson, Paul Philip Hood (U. of Wisconsin, Madison, WI)

    2010-10-01T23:59:59.000Z

    This paper describes techniques for determining impact deformation and the subsequent reactivity change for a space reactor impacting the ground following a potential launch accident or for large fuel bundles in a shipping container following an accident. This technique could be used to determine the margin of subcriticality for such potential accidents. Specifically, the approach couples a finite element continuum mechanics model (Pronto3D or Presto) with a neutronics code (MCNP). DAGMC, developed at the University of Wisconsin-Madison, is used to enable MCNP geometric queries to be performed using Pronto3D output. This paper summarizes what has been done historically for reactor launch analysis, describes the impact criticality analysis methodology, and presents preliminary results using representative reactor designs.

  14. Session: Bat ecology related to wind development and lessons learned about impacts on bats from wind development

    SciTech Connect (OSTI)

    Johnson, Greg; Kunz, Thomas

    2004-09-01T23:59:59.000Z

    This session at the Wind Energy and Birds/Bats workshop consisted of two paper presentations followed by a discussion/question and answer period. It was the first of the sessions to shift the focus to the issue of wind energy development's impacts specifically to bats. The presentations discussed lessons that have been learned regarding direct and indirect impacts on bats and strategies planned to address such issues. Presenters addressed what the existing science demonstrates about land-based wind turbine impacts on bats, including: mortality, avoidance, direct habitat impacts, species and numbers killed, per turbine rates/per MW generated, and impacts on threatened and endangered species. They discussed whether there is sufficient data for wind turbines and bat impacts for projects in the eastern US, especially on ridge tops. Finally, the subject of offshore impacts on bats was briefly addressed, including what lessons have been learned in Europe and how these can be applied in the U S. Paper one, by Greg Johnson, was titled ''A Review of Bat Impacts at Wind Farms in the US''. Paper two, by Thomas Kunz, was titled ''Wind Power: Bats and Wind Turbines''.

  15. Visual Impact Assessment in British Oil and Gas Developments1 Dennis F. Gillespie

    E-Print Network [OSTI]

    Standiford, Richard B.

    Visual Impact Assessment in British Oil and Gas Developments1 2/ Dennis F. Gillespie 3/ Brian D Unit, Department of Geography, University of Aberdeen, Scotland. Abstract: Development of oil and gas these effects into account. Since 1970, the offshore discovery and development of oil and gas resources

  16. Evaluation of field development plans using 3-D reservoir modelling

    SciTech Connect (OSTI)

    Seifert, D.; Lewis, J.J.M. [Heriot-Watt Univ., Edinburgh (United Kingdom); Newbery, J.D.H. [Conoco, UK Ltd., Aberdeen (United Kingdom)] [and others

    1997-08-01T23:59:59.000Z

    Three-dimensional reservoir modelling has become an accepted tool in reservoir description and is used for various purposes, such as reservoir performance prediction or integration and visualisation of data. In this case study, a small Northern North Sea turbiditic reservoir was to be developed with a line drive strategy utilising a series of horizontal producer and injector pairs, oriented north-south. This development plan was to be evaluated and the expected outcome of the wells was to be assessed and risked. Detailed analyses of core, well log and analogue data has led to the development of two geological {open_quotes}end member{close_quotes} scenarios. Both scenarios have been stochastically modelled using the Sequential Indicator Simulation method. The resulting equiprobable realisations have been subjected to detailed statistical well placement optimisation techniques. Based upon bivariate statistical evaluation of more than 1000 numerical well trajectories for each of the two scenarios, it was found that the wells inclinations and lengths had a great impact on the wells success, whereas the azimuth was found to have only a minor impact. After integration of the above results, the actual well paths were redesigned to meet external drilling constraints, resulting in substantial reductions in drilling time and costs.

  17. Model Developments for Development of Improved Emissions Scenarios: Developing Purchasing-Power Parity Models, Analyzing Uncertainty, and Developing Data Sets for Gridded Integrated Assessment Models

    SciTech Connect (OSTI)

    Yang, Zili; Nordhaus, William

    2009-03-19T23:59:59.000Z

    In the duration of this project, we finished the main tasks set up in the initial proposal. These tasks include: setting up the basic platform in GAMS language for the new RICE 2007 model; testing various model structure of RICE 2007; incorporating PPP data set in the new RICE model; developing gridded data set for IA modeling.

  18. Impact of geothermal development on stockraising homestead landowners

    SciTech Connect (OSTI)

    Not Available

    1981-04-16T23:59:59.000Z

    Surface use and compensation conflicts have developed at the Geysers in California between owners of surface lands acquired under the Stockraising Homestead Act of 1916 and geothermal lessees with the right to develop the mineral interests reserved to the Federal Government. Several recommendations are made to the Secretary of the Interior concerning the problems identified. The following are discussed: conditions at the Geysers concerning geothermal development on stockraising lands that could be considered in regard to compensation, existence or potential for similar conflicts on this land outside the Geysers, protection and compensation provided surface owners in existence of legislation and the need for amendments, and alternative methods for paying compensation.

  19. The impact of accounting for research and development on innovation

    E-Print Network [OSTI]

    Li, Lei (Lynn Lei)

    2012-01-01T23:59:59.000Z

    This paper examines whether a change in the accounting rule for research and development (R&D) cost is associated with changes in the innovation process. Specifically, I examine whether R&D expenditure, the number of patents ...

  20. Impacts of Marcellus Shale Development on Municipal Governments in Susquehanna

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    -thirds of the state. The development of this natural gas resource is creating significant eco- nomic opportunities to some. Town- ships, boroughs, and cities are re- sponsible for providing important public services

  1. Modeling Climate and Production-related Impacts on Ice-core Beryllium-10

    E-Print Network [OSTI]

    Modeling Climate and Production-related Impacts on Ice-core Beryllium-10 Christy Veeder Submitted Modeling Climate and Production-related Impacts on Ice-core Beryllium-10 Christy Veeder I use the Goddard Institute for Space Studies ModelE general circulation model to ex- amine the how beryllium-10, a cosmogenic

  2. Economic Development Impact of 1,000 MW of Wind Energy in Texas

    SciTech Connect (OSTI)

    Reategui, S.; Hendrickson, S.

    2011-08-01T23:59:59.000Z

    Texas has approximately 9,727 MW of wind energy capacity installed, making it a global leader in installed wind energy. As a result of the significant investment the wind industry has brought to Texas, it is important to better understand the economic development impacts of wind energy in Texas. This report analyzes the jobs and economic impacts of 1,000 MW of wind power generation in the state. The impacts highlighted in this report can be used in policy and planning decisions and can be scaled to get a sense of the economic development opportunities associated with other wind scenarios. This report can also inform stakeholders in other states about the potential economic impacts associated with the development of 1,000 MW of new wind power generation and the relationships of different elements in the state economy.

  3. Category:LEDSGP Development Impacts Assessment Toolkits | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here. Category:Conceptual Model Add.pngpage?sourcehelpFluid

  4. ImSET 3.1: Impact of Sector Energy Technologies Model Description and User's Guide

    SciTech Connect (OSTI)

    Scott, Michael J.; Livingston, Olga V.; Balducci, Patrick J.; Roop, Joseph M.; Schultz, Robert W.

    2009-05-22T23:59:59.000Z

    This 3.1 version of the Impact of Sector Energy Technologies (ImSET) model represents the next generation of the previously-built ImSET model (ImSET 2.0) that was developed in 2005 to estimate the macroeconomic impacts of energy-efficient technology in buildings. In particular, a special-purpose version of the Benchmark National Input-Output (I-O) model was designed specifically to estimate the national employment and income effects of the deployment of Office of Energy Efficiency and Renewable Energy (EERE)–developed energy-saving technologies. In comparison with the previous versions of the model, this version features the use of the U.S. Bureau of Economic Analysis 2002 national input-output table and the central processing code has been moved from the FORTRAN legacy operating environment to a modern C++ code. ImSET is also easier to use than extant macroeconomic simulation models and incorporates information developed by each of the EERE offices as part of the requirements of the Government Performance and Results Act. While it does not include the ability to model certain dynamic features of markets for labor and other factors of production featured in the more complex models, for most purposes these excluded features are not critical. The analysis is credible as long as the assumption is made that relative prices in the economy would not be substantially affected by energy efficiency investments. In most cases, the expected scale of these investments is small enough that neither labor markets nor production cost relationships should seriously affect national prices as the investments are made. The exact timing of impacts on gross product, employment, and national wage income from energy efficiency investments is not well-enough understood that much special insight can be gained from the additional dynamic sophistication of a macroeconomic simulation model. Thus, we believe that this version of ImSET is a cost-effective solution to estimating the economic impacts of the development of energy-efficient technologies.

  5. Development of a natural Gas Systems Analysis Model (GSAM)

    SciTech Connect (OSTI)

    Godec, M.; Haas, M.; Pepper, W.; Rose, J.

    1993-12-31T23:59:59.000Z

    Recent dramatic changes in natural gas markets have significant implications for the scope and direction of DOE`s upstream as well as downstream natural gas R&D. Open access transportation changes the way gas is bought and sold. The end of the gas deliverability surplus requires increased reserve development above recent levels. Increased gas demand for power generation and other new uses changes the overall demand picture in terms of volumes, locations and seasonality. DOE`s Natural Gas Strategic Plan requires that its R&D activities be evaluated for their ability to provide adequate supplies of reasonably priced gas. Potential R&D projects are to be evaluated using a full fuel cycle, benefit-cost approach to estimate likely market impact as well as technical success. To assure R&D projects are evaluated on a comparable basis, METC has undertaken the development of a comprehensive natural gas technology evaluation framework. Existing energy systems models lack the level of detail required to estimate the impact of specific upstream natural gas technologies across the known range of geological settings and likely market conditions. Gas Systems Analysis Model (GSAM) research during FY 1993 developed and implemented this comprehensive, consistent natural gas system evaluation framework. Rather than a isolated research activity, however, GSAM represents the integration of many prior and ongoing natural gas research efforts. When complete, it will incorporate the most current resource base description, reservoir modeling, technology characterization and other geologic and engineering aspects developed through recent METC and industry gas R&D programs.

  6. Cumulative impacts study of The Geysers KGRA: public-service impacts of geothermal development

    SciTech Connect (OSTI)

    Matthews, K.M.

    1982-05-01T23:59:59.000Z

    Geothermal development in The Geysers KGRA has affected local public services and fiscal resources in Sonoma, Lake, Mendocino, and Napa counties. Each of these counties underwent rapid population growth between 1970 and 1980, some of which can be attributed to geothermal development. The number of workers currently involved in the various aspects of geothermal development in The Geysers is identified. Using three different development scenarios, projections are made for the number of power plants needed to reach the electrical generation capacity of the steam resource in The Geysers. The report also projects the cumulative number of workers needed to develop the steam field and to construct, operate, and maintain these power plants. Although the number of construction workers fluctuates, most are not likely to become new, permanent residents of the KGRA counties. The administrative and public service costs of geothermal development to local jurisdictions are examined and compared to geothermal revenues accruing to the local governments. Revenues do not cover the immediate fiscal needs resulting from increases in local road maintenance and school enrollment attributable to geothermal development. Several mitigation options are discussed, and a framework is presented for calculating mitigation costs per unit of public service.

  7. Development of Frameworks for Robust Regional Climate Modeling PRINCIPAL INVESTIGATOR: Moetasim Ashfaq

    E-Print Network [OSTI]

    goals of climate modeling. Water supports the ecosystems as well as a wide range of human activities to improve region- al predictions of the hydrologic cycle to address climate change impacts, adaptationDevelopment of Frameworks for Robust Regional Climate Modeling PRINCIPAL INVESTIGATOR: Moetasim

  8. A Hydro-Economic Approach to Representing Water Resources Impacts in Integrated Assessment Models

    SciTech Connect (OSTI)

    Kirshen, Paul H.; Strzepek, Kenneth, M.

    2004-01-14T23:59:59.000Z

    Grant Number DE-FG02-98ER62665 Office of Energy Research of the U.S. Department of Energy Abstract Many Integrated Assessment Models (IAM) divide the world into a small number of highly aggregated regions. Non-OECD countries are aggregated geographically into continental and multiple-continental regions or economically by development level. Current research suggests that these large scale aggregations cannot accurately represent potential water resources-related climate change impacts. In addition, IAMs do not explicitly model the flow regulation impacts of reservoir and ground water systems, the economics of water supply, or the demand for water in economic activities. Using the International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT) model of the International Food Policy Research Institute (IFPRI) as a case study, this research implemented a set of methodologies to provide accurate representation of water resource climate change impacts in Integrated Assessment Models. There were also detailed examinations of key issues related to aggregated modeling including: modeling water consumption versus water withdrawals; ground and surface water interactions; development of reservoir cost curves; modeling of surface areas of aggregated reservoirs for estimating evaporation losses; and evaluating the importance of spatial scale in river basin modeling. The major findings include: - Continental or national or even large scale river basin aggregation of water supplies and demands do not accurately capture the impacts of climate change in the water and agricultural sector in IAMs. - Fortunately, there now exist gridden approaches (0.5 X 0.5 degrees) to model streamflows in a global analysis. The gridded approach to hydrologic modeling allows flexibility in aligning basin boundaries with national boundaries. This combined with GIS tools, high speed computers, and the growing availability of socio-economic gridded data bases allows assignment of demands to river basins to create hydro-economic zones that respect as much as possible both political and hydrologic integrity in different models. - To minimize pre-processing of data and add increased flexibility to modeling water resources and uses, it is recommended that water withdrawal demands be modeled, not consumptive requirements even though this makes the IAM more complex. - IAMs must consider changes in water availability for irrigation under climate change; ignoring them is more inaccurate than ignoring yield changes in crops under climate change. - Determining water availability and cost in river basins must include modeling streamflows, reservoirs and their operations, and ground water and its interaction with surface water. - Scale issues are important. The results from condensing demands and supplies in a large complex river basin to one node can be misleading for all uses under low flow conditions and instream flow uses under all conditions. Monthly is generally the most accurate scale for modeling river flows and demands. Challenges remain in integrating hydrologic units with political boundaries but the gridded approach to hydrologic modeling allows flexibility in aligning basin boundaries with political boundaries. - Using minimal reservoir cost data, it is possible to use basin topography to estimate reservoir storage costs. - Reservoir evaporation must be considered when assessing the usable water in a watershed. Several methods are available to estimate the relationship between aggregated storage surface area and storage volume. - For existing or future IAMs that can not use the appropriate aggregation for water, a water preprocessor may be required due the finer scale of hydrologic impacts.

  9. Environmental Impacts of Increased Hydroelectric Development at Existing

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: Final EnvironmentalCounties,United Statesof6Research & Development »

  10. Development of a Thermoacoustic Model for Evaluating Passive Damping Strategies

    E-Print Network [OSTI]

    Rehman, Syed; Eldredge, Jeff D.

    2005-01-01T23:59:59.000Z

    The calculation of thermoacoustic oscillations. J. Sound008 "Development of a Thermoacoustic Model for EvaluatingDevelopment of a Thermoacoustic Model for Evaluating Passive

  11. The Impact of Trade on Wage Inequality in Developing Countries: Technology vs. Comparative Advantage

    E-Print Network [OSTI]

    Bandyopadhyay, Antar

    The Impact of Trade on Wage Inequality in Developing Countries: Technology vs. Comparative: Wages, Inequality, Trade, Technology Transfer First draft, 20.09.2014 Summary During the expansion of world trade since the 1980s, measures of inequality have risen not only in developed countries, but also

  12. The Impact of Manufacturing Offshore on Technology Development Paths in the Automotive and Optoelectronics Industries

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Development Paths in the Automotive and Optoelectronics Industries by Erica R.H. Fuchs Submitted in particular at the automotive and optoelectronics industries. The dissertation uses an innovative combinationThe Impact of Manufacturing Offshore on Technology Development Paths in the Automotive

  13. Developing a gas purchasing strategy using a linear model

    SciTech Connect (OSTI)

    Alst, K.M. Van [Midland Cogeneration Venture Limited Partnership, Midland, MI (United States)

    1995-12-31T23:59:59.000Z

    This paper outlines the process of developing a gas purchasing strategy with the use of a linear programming model. The linear model is used to determine the least cost approach regarding the acquisition of natural gas which has a considerable impact on the company`s financial performance. The author discusses the importance of optimizing gas costs from an end-user`s perspective. The Midland Cogeneration Venture (MCV) is the country`s largest cogeneration facility. The Facility has been certified by FERC (Federal Energy Regulatory Commission) as a Q.F. (Qualifying Facility) under PURPA (Public Utility Regulatory Policies Act of 1978). Unlike utilities, who have the ability to pass costs through to customers, MCV`s revenues are based on long-term contracts with its utility and industrial customers. Therefore, MCV cannot pass costs through to its customers. As such, effectively managing costs is vital to the success of the company.

  14. Impact of water resource development on the hydrology and sedimentology of the Brazos River system

    E-Print Network [OSTI]

    Minter, Larry Lane

    1976-01-01T23:59:59.000Z

    IMPACT OF WATER RESOURCE DEVELOPMENT ON THE HYDROLOGY AND SEDIMENTOLOGY OF THE BRAZOS RIVER SYSTEM A Thesis by Submitted to the Graduate College of Texas ALM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE August 1976 Major Subject: Geology IMPACT OF WATER RESOURCE DEVFLOPMENT ON THE HYDROLOGY AND SEDIMENTOLOGY OF THE BRAZOS RIVER SYSTEM A Thesis by LARRY LANE MINTER Approved as to style snd. content by: (Chairman of Committee) n (Head...

  15. Development of models for welding applications

    SciTech Connect (OSTI)

    Roper, J.R.; Hayer, L.K.

    1990-01-01T23:59:59.000Z

    The modeling of welding processes offers considerable potential for help with manufacturing problems but a complete definition of any welding process offers many challenges. However, the modular structure of MARC, and the diverse range of capabilities offered, create a good opportunity for development in this area. This paper discusses these problems and describes techniques used to overcome some of them. Models have been developed to simulate gas tungsten arc (GTA) and electron beam (EB) welding with a moving heat source. Fortran routines for subroutines FLUX and FORCDT have been written to generate a moving heat source. Sequential element activation has permitted the simulation of GTA welding with cold wire feed (CWF), as in filling of a machined weld groove. A program which generates History Definition blocks necessary for this type of welding model is also described in this paper. Semi-infinite heat transfer elements were used to get accurate temperature histories while keeping the size of the model manageable. Time-temperature histories and isothermal contours compare well with experimental measurements, although many areas for improvement and refinement remain. Results have been used to anticipate the necessity for weld parameter changes after part redesign, and the electron beam model relates closely to situations in which information is needed for the minimization of peak temperatures on the underside of the welded part. 8 refs., 11 figs.

  16. Puget Sound Dissolved Oxygen Modeling Study: Development of an Intermediate-Scale Hydrodynamic Model

    SciTech Connect (OSTI)

    Yang, Zhaoqing; Khangaonkar, Tarang; Labiosa, Rochelle G.; Kim, Taeyun

    2010-11-30T23:59:59.000Z

    The Washington State Department of Ecology contracted with Pacific Northwest National Laboratory to develop an intermediate-scale hydrodynamic and water quality model to study dissolved oxygen and nutrient dynamics in Puget Sound and to help define potential Puget Sound-wide nutrient management strategies and decisions. Specifically, the project is expected to help determine 1) if current and potential future nitrogen loadings from point and non-point sources are significantly impairing water quality at a large scale and 2) what level of nutrient reductions are necessary to reduce or dominate human impacts to dissolved oxygen levels in the sensitive areas. In this study, an intermediate-scale hydrodynamic model of Puget Sound was developed to simulate the hydrodynamics of Puget Sound and the Northwest Straits for the year 2006. The model was constructed using the unstructured Finite Volume Coastal Ocean Model. The overall model grid resolution within Puget Sound in its present configuration is about 880 m. The model was driven by tides, river inflows, and meteorological forcing (wind and net heat flux) and simulated tidal circulations, temperature, and salinity distributions in Puget Sound. The model was validated against observed data of water surface elevation, velocity, temperature, and salinity at various stations within the study domain. Model validation indicated that the model simulates tidal elevations and currents in Puget Sound well and reproduces the general patterns of the temperature and salinity distributions.

  17. 3D Rigid Body Impact Burial Prediction Model

    E-Print Network [OSTI]

    Chu, Peter C.

    -fixed coordinate (E-coordinate) · cylinder's main-axis following coordinate (M-coordinate) · hydrodynamic force-Coordiante Hydrodynamic forces (drag and lift) are easily calculated. #12;Moment of Momentum Equations #12;Interfacial;Experiment · Hydrodynamic Model Development · Behavior of Falling Cylinder in Water Column (Chaotic

  18. Air Tightness of US Homes: Model Development

    SciTech Connect (OSTI)

    Sherman, Max H.

    2006-05-01T23:59:59.000Z

    Air tightness is an important property of building envelopes. It is a key factor in determining infiltration and related wall-performance properties such as indoor air quality, maintainability and moisture balance. Air leakage in U.S. houses consumes roughly 1/3 of the HVAC energy but provides most of the ventilation used to control IAQ. The Lawrence Berkeley National Laboratory has been gathering residential air leakage data from many sources and now has a database of more than 100,000 raw measurements. This paper uses that database to develop a model for estimating air leakage as a function of climate, building age, floor area, building height, floor type, energy-efficiency and low-income designations. The model developed can be used to estimate the leakage distribution of populations of houses.

  19. Preliminary Phase Field Computational Model Development

    SciTech Connect (OSTI)

    Li, Yulan; Hu, Shenyang Y.; Xu, Ke; Suter, Jonathan D.; McCloy, John S.; Johnson, Bradley R.; Ramuhalli, Pradeep

    2014-12-15T23:59:59.000Z

    This interim report presents progress towards the development of meso-scale models of magnetic behavior that incorporate microstructural information. Modeling magnetic signatures in irradiated materials with complex microstructures (such as structural steels) is a significant challenge. The complexity is addressed incrementally, using the monocrystalline Fe (i.e., ferrite) film as model systems to develop and validate initial models, followed by polycrystalline Fe films, and by more complicated and representative alloys. In addition, the modeling incrementally addresses inclusion of other major phases (e.g., martensite, austenite), minor magnetic phases (e.g., carbides, FeCr precipitates), and minor nonmagnetic phases (e.g., Cu precipitates, voids). The focus of the magnetic modeling is on phase-field models. The models are based on the numerical solution to the Landau-Lifshitz-Gilbert equation. From the computational standpoint, phase-field modeling allows the simulation of large enough systems that relevant defect structures and their effects on functional properties like magnetism can be simulated. To date, two phase-field models have been generated in support of this work. First, a bulk iron model with periodic boundary conditions was generated as a proof-of-concept to investigate major loop effects of single versus polycrystalline bulk iron and effects of single non-magnetic defects. More recently, to support the experimental program herein using iron thin films, a new model was generated that uses finite boundary conditions representing surfaces and edges. This model has provided key insights into the domain structures observed in magnetic force microscopy (MFM) measurements. Simulation results for single crystal thin-film iron indicate the feasibility of the model for determining magnetic domain wall thickness and mobility in an externally applied field. Because the phase-field model dimensions are limited relative to the size of most specimens used in experiments, special experimental methods were devised to create similar boundary conditions in the iron films. Preliminary MFM studies conducted on single and polycrystalline iron films with small sub-areas created with focused ion beam have correlated quite well qualitatively with phase-field simulations. However, phase-field model dimensions are still small relative to experiments thus far. We are in the process of increasing the size of the models and decreasing specimen size so both have identical dimensions. Ongoing research is focused on validation of the phase-field model. Validation is being accomplished through comparison with experimentally obtained MFM images (in progress), and planned measurements of major hysteresis loops and first order reversal curves. Extrapolation of simulation sizes to represent a more stochastic bulk-like system will require sampling of various simulations (i.e., with single non-magnetic defect, single magnetic defect, single grain boundary, single dislocation, etc.) with distributions of input parameters. These outputs can then be compared to laboratory magnetic measurements and ultimately to simulate magnetic Barkhausen noise signals.

  20. Models for environmental impact assessments of releases of radioactive substances from CERN facilities

    E-Print Network [OSTI]

    Vojtyla, P

    2005-01-01T23:59:59.000Z

    The document describes generic models for environmental impact assessments of releases of radioactive substances from CERN facilities. Except for few models developed in the Safety Commission, the models are based on the 1997 Swiss directive HSK-R-41 and on the 2001 IAEA Safety Report No. 19. The writing style is descriptive, facilitating the practical implementation of the models at CERN. There are four scenarios assumed for airborne releases: (1) short-term releases for release limit calculations, (2) actual short-term releases, (3) short-term releases during incidents/accidents, and (4) chronic long-term releases during the normal operation of a facility. For water releases, two scenarios are considered: (1) a release into a river, and (2) a release into a water treatment plant. The document shall be understood as a reference for specific environmental studies involving radioactive releases and as a recommendation of the Safety Commission.

  1. Models for Assessment of the environmental impact of Radioactive releases from CERN facilities

    E-Print Network [OSTI]

    Vojtyla, P

    2002-01-01T23:59:59.000Z

    The document describes generic models for environmental impact assessment of radioactive releases from CERN facilities. Except for few models developed in the TIS Division, the models are based on the 1997 Swiss directive HSK-R-41 and on the 2001 IAEA Safety Report No. 19. The writing style is descriptive, facilitating the practical implementation of the models at CERN. There are four scenarios assumed for airborne releases: (1) short-term releases for release limit calcu¬lations, (2) actual short-term releases, (3) short-term releases during incidents/accidents, and (4) chronic long-term releases during the normal operation of a facility. For water releases, two scenarios are considered: (1) a release into a river, and (2) a release into a water treatment plant. The document shall be understood as a reference for specific environmental studies involving radioactive releases and as a recommendation of the TIS Division.

  2. Influence of air quality model resolution on uncertainty associated with health impacts

    E-Print Network [OSTI]

    Thompson, Tammy M.

    We use regional air quality modeling to evaluate the impact of model resolution on uncertainty associated with the human health benefits resulting from proposed air quality regulations. Using a regional photochemical model ...

  3. LEDSGP/analysis/impacts/DIAWebinar on Development Impact Assessment for Low

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou NewKorea Parts andKunshanGroupEmissions Development

  4. Strategic environmental assessment can help solve environmental impact assessment failures in developing countries

    SciTech Connect (OSTI)

    Alshuwaikhat, Habib M. [Department of City and Regional Planning, King Fahd University of Petroleum and Minerals, PO Box 1632, Dhahran 31261 (Saudi Arabia)]. E-mail: habibms@kfupm.edu.sa

    2005-05-15T23:59:59.000Z

    The current trend of industrialization and urbanization in developing nations has a huge impact on anthropogenic and natural ecosystems. Pollution sources increase with the expansion of cities and cause contamination of water, air and soil. The absence of urban environmental planning and management strategies has resulted in greater concern for future urban development. This paper advocates the adoption of strategic environmental assessment (SEA) as a means to achieve sustainable development in developing countries. It investigates project-level environmental impact assessment (EIA) and its limitations. The exploration of SEA and its features are addressed. The effective implementation of SEA can create a roadmap for sustainable development. In many developing countries, the lack of transparency and accountability and ineffective public participation in the development of the policy, plan and program (PPP) would be mitigated by the SEA process. Moreover, the proactive and broadly based characteristics of SEA would benefit the institutional development of the PPP process, which is rarely experienced in many developing countries. The paper also explores the prospects for SEA and its guiding principles in developing countries. Finally, the paper calls for a coordinated effort between all government, nongovernment and international organizations involved with PPPs to enable developing countries to pursue a path of sustainable development through the development and application of strategic environmental assessment.

  5. A Generalized Notion of Platforms for Model Driven Development

    E-Print Network [OSTI]

    KĂĽhne, Thomas

    , 64289 Darmstadt, Germany kuehne@informatik.tu-darmstadt.de 1 Introduction Model driven development (MDD

  6. Cumulative impact assessments and bird/wind farm interactions: Developing a conceptual framework

    SciTech Connect (OSTI)

    Masden, Elizabeth A., E-mail: e.masden.1@research.gla.ac.u [Department of Ecology and Evolutionary Biology, University of Glasgow, Glasgow, G12 8QQ (United Kingdom) and Boyd Orr Centre for Population and Ecosystem Health, University of Glasgow, Glasgow, G12 8QQ (United Kingdom); Fox, Anthony D., E-mail: tfo@dmu.d [Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, University of Aarhus, Kalo, Grenavej 14, 8410 Ronde (Denmark); Furness, Robert W., E-mail: r.furness@bio.gla.ac.u [Department of Ecology and Evolutionary Biology, University of Glasgow, Glasgow, G12 8QQ (United Kingdom); Bullman, Rhys, E-mail: rhys.bullman@rpsgroup.co [Scottish Natural Heritage, The Beta Centre, Innovation Park, University of Stirling, Stirling FK9 4NF (United Kingdom); Haydon, Daniel T., E-mail: d.haydon@bio.gla.ac.u [Department of Ecology and Evolutionary Biology, University of Glasgow, Glasgow, G12 8QQ (United Kingdom); Boyd Orr Centre for Population and Ecosystem Health, University of Glasgow, Glasgow, G12 8QQ (United Kingdom)

    2010-01-15T23:59:59.000Z

    The wind power industry has grown rapidly in the UK to meet EU targets of sourcing 20% of energy from renewable sources by 2020. Although wind power is a renewable energy source, there are environmental concerns over increasing numbers of wind farm proposals and associated cumulative impacts. Individually, a wind farm, or indeed any action, may have minor effects on the environment, but collectively these may be significant, potentially greater than the sum of the individual parts acting alone. EU and UK legislation requires a cumulative impact assessment (CIA) as part of Environmental Impact Assessments (EIA). However, in the absence of detailed guidance and definitions, such assessments within EIA are rarely adequate, restricting the acquisition of basic knowledge about the cumulative impacts of wind farms on bird populations. Here we propose a conceptual framework to promote transparency in CIA through the explicit definition of impacts, actions and scales within an assessment. Our framework requires improved legislative guidance on the actions to include in assessments, and advice on the appropriate baselines against which to assess impacts. Cumulative impacts are currently considered on restricted scales (spatial and temporal) relating to individual development EIAs. We propose that benefits would be gained from elevating CIA to a strategic level, as a component of spatially explicit planning.

  7. Modeling of Wave Impact Using a Pendulum System

    E-Print Network [OSTI]

    Nie, Chunyong

    2011-08-08T23:59:59.000Z

    For high speed vessels and offshore structures, wave impact, a main source of environmental loads, causes high local stresses and structural failure. However, the prediction of wave impact loads presents numerous challenges due to the complex nature...

  8. Modeling of Wave Impact Using a Pendulum System 

    E-Print Network [OSTI]

    Nie, Chunyong

    2011-08-08T23:59:59.000Z

    For high speed vessels and offshore structures, wave impact, a main source of environmental loads, causes high local stresses and structural failure. However, the prediction of wave impact loads presents numerous challenges due to the complex nature...

  9. Model development for household waste prevention behaviour

    SciTech Connect (OSTI)

    Bortoleto, Ana Paula, E-mail: a.bortoleto@sheffield.ac.uk [Department of Urban Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Kurisu, Kiyo H.; Hanaki, Keisuke [Department of Urban Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)

    2012-12-15T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer We model waste prevention behaviour using structure equation modelling. Black-Right-Pointing-Pointer We merge attitude-behaviour theories with wider models from environmental psychology. Black-Right-Pointing-Pointer Personal norms and perceived behaviour control are the main behaviour predictors. Black-Right-Pointing-Pointer Environmental concern, moral obligation and inconvenience are the main influence on the behaviour. Black-Right-Pointing-Pointer Waste prevention and recycling are different dimensions of waste management behaviour. - Abstract: Understanding waste prevention behaviour (WPB) could enable local governments and decision makers to design more-effective policies for reducing the amount of waste that is generated. By merging well-known attitude-behaviour theories with elements from wider models from environmental psychology, an extensive cognitive framework that provides new and valuable insights is developed for understanding the involvement of individuals in waste prevention. The results confirm the usefulness of the theory of planned behaviour and of Schwartz's altruistic behaviour model as bases for modelling participation in waste prevention. A more elaborate integrated model of prevention was shown to be necessary for the complete analysis of attitudinal aspects associated with waste prevention. A postal survey of 158 respondents provided empirical support for eight of 12 hypotheses. The proposed structural equation indicates that personal norms and perceived behaviour control are the main predictors and that, unlike the case of recycling, subjective norms have a weak influence on WPB. It also suggests that, since social norms have not presented a direct influence, WPB is likely to be influenced by a concern for the environment and the community as well by perceptions of moral obligation and inconvenience. Results also proved that recycling and waste prevention represent different dimensions of waste management behaviour requiring particular approaches to increase individuals' engagement in future policies.

  10. Webinar: DOE Launches JOBS and Economic Impacts of Fuel Cells (JOBS FC) Analysis Model

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled, DOE Launches JOBS and Economic Impacts of Fuel Cells (JOBS FC) Analysis Model, originally presented on May 22, 2012.

  11. Development of a cell-based stream flow routing model 

    E-Print Network [OSTI]

    Raina, Rajeev

    2005-08-29T23:59:59.000Z

    This study presents the development of a cell-based routing model. The model developed is a two parameter hydrological routing model that uses a coarse resolution stream network to route runoff from each cell in the watershed ...

  12. Developing Models for Predictive Climate Science

    SciTech Connect (OSTI)

    Drake, John B [ORNL; Jones, Philip W [Los Alamos National Laboratory (LANL)

    2007-01-01T23:59:59.000Z

    The Community Climate System Model results from a multi-agency collaboration designed to construct cutting-edge climate science simulation models for a broad research community. Predictive climate simulations are currently being prepared for the petascale computers of the near future. Modeling capabilities are continuously being improved in order to provide better answers to critical questions about Earth's climate. Climate change and its implications are front page news in today's world. Could global warming be responsible for the July 2006 heat waves in Europe and the United States? Should more resources be devoted to preparing for an increase in the frequency of strong tropical storms and hurricanes like Katrina? Will coastal cities be flooded due to a rise in sea level? The National Climatic Data Center (NCDC), which archives all weather data for the nation, reports that global surface temperatures have increased over the last century, and that the rate of increase is three times greater since 1976. Will temperatures continue to climb at this rate, will they decline again, or will the rate of increase become even steeper? To address such a flurry of questions, scientists must adopt a systematic approach and develop a predictive framework. With responsibility for advising on energy and technology strategies, the DOE is dedicated to advancing climate research in order to elucidate the causes of climate change, including the role of carbon loading from fossil fuel use. Thus, climate science--which by nature involves advanced computing technology and methods--has been the focus of a number of DOE's SciDAC research projects. Dr. John Drake (ORNL) and Dr. Philip Jones (LANL) served as principal investigators on the SciDAC project, 'Collaborative Design and Development of the Community Climate System Model for Terascale Computers.' The Community Climate System Model (CCSM) is a fully-coupled global system that provides state-of-the-art computer simulations of the Earth's past, present, and future climate states. The collaborative SciDAC team--including over a dozen researchers at institutions around the country--developed, validated, documented, and optimized the performance of CCSM using the latest software engineering approaches, computational technology, and scientific knowledge. Many of the factors that must be accounted for in a comprehensive model of the climate system are illustrated in figure 1.

  13. Modeling of the Terminal Velocities of the Dust Ejected Material by the Impact

    E-Print Network [OSTI]

    M. Rengel; M. Kueppers; H. U. Keller; P. Gutierrez

    2007-01-03T23:59:59.000Z

    We compute the distribution of velocities of the particles ejected by the impact of the projectile released from NASA Deep Impact spacecraft on the nucleus of comet 9P/Tempel 1 on the successive 20 hours following the collision. This is performed by the development and use of an ill-conditioned inverse problem approach, whose main ingredients are a set of observations taken by the Narrow Angle Camera (NAC) of OSIRIS onboard the Rosetta spacecraft, and a set of simple models of the expansion of the dust ejecta plume for different velocities. Terminal velocities are derived using a maximum likelihood estimator. We compare our results with published estimates of the expansion velocity of the dust cloud. Our approach and models reproduce well the velocity distribution of the ejected particles. We consider these successful comparisons of the velocities as an evidence for the appropriateness of the approach. This analysis provides a more thorough understanding of the properties of the Deep Impact dust cloud.

  14. Development of a room air conditioner design model 

    E-Print Network [OSTI]

    Penson, Steven Brad

    1988-01-01T23:59:59.000Z

    model was developed for this thesis by making major modifications to a heat pump model previously developed by Oak Ridge National Laboratory: (1) Addition of a subcooler, (2) Revision of the capillary tube model, (3) Addition of multi-grooved tubes.... Efficiency improvements are evaluated with the aid of a computer model. The model chosen for this analysis was the Oak Ridge National Laboratory (ORNL) heat pump model [5] . The ORNL Heat Pump Design Model is a FORTRAN computer program developed...

  15. Potential Impact of the Development of Lignite Reserves on Water Resources of East Texas

    E-Print Network [OSTI]

    James, W. P.; Slowey, J. F.; Garret, R. L.; Ortiz, C.; Bright, J.; King, T.

    adverse effects of lignite strip mining and lignite utilization on the hydrology and water quality of the area. Both field and desk studies were conducted to evaluate the potential impact of lignite development on water resources of the area. Field studies...

  16. Multiple scales of diamond mining in Akwatia, Ghana: addressing environmental and human development impact

    E-Print Network [OSTI]

    Vermont, University of

    degradation caused by the gold mining is significant, chemical contamination from the gold extraction process impact on environmental degradation, health, and the livelihood of artisanal miners. We conclude-generation for small-scale miners, there are some human development challenges, related to environmental burden from

  17. The Impact of the Mobile Web in Developing Countries Betty Purwandari

    E-Print Network [OSTI]

    Southampton, University of

    , the methodology is needed by various mobile Web stakeholders to enable the advancement of mobile Web technology1 The Impact of the Mobile Web in Developing Countries Betty Purwandari School of Electronics of Southampton SO17 1BJ, UK +44 2380 592388 dder@ecs.soton.ac.uk ABSTRACT Mobile phone penetration

  18. THE IMPACTS OF URBANIZATION/URBAN DEVELOPMENT IN THE CLIMATE OF PUERTO RICO

    E-Print Network [OSTI]

    Gilbes, Fernando

    THE IMPACTS OF URBANIZATION/URBAN DEVELOPMENT IN THE CLIMATE OF PUERTO RICO Angel R. Torres Valcarcel MPH Ph.D José R. Acosta #380 Roosevelt, Hato Rey Puerto Rico atorresv09@gmail.com A detailed analysis of century-scale climate change for Puerto Rico was done to assess the degree to which some

  19. Living on the Edge: Minimizing the Impact of Development along Rincon Creek

    E-Print Network [OSTI]

    Fay, Noah

    are the largest single threat to natural areas in the Western United States. In Tucson, Arizona, protected natural by protected natural areas, the Rincon Valley serves as habitat and a movement conduit for many Sonora the impact of development on natural areas at the urban-wild land edge are becoming increasingly important

  20. Local Business Impacts of Marcellus Shale Development: The Experience in Bradford

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Local Business Impacts of Marcellus Shale Development: The Experience in Bradford and Washington Counties, 2010 Marcellus Education Fact Sheet About the Counties Bradford County is located along the New 5,082 businesses in 2008. A total of 305 Marcellus wells have been drilled in the county M any have

  1. No-Impact Threshold Values for NRAP’s Reduced Order Models

    SciTech Connect (OSTI)

    Last, George V.; Murray, Christopher J.; Brown, Christopher F.; Jordan, Preston D.; Sharma, Maneesh

    2013-02-01T23:59:59.000Z

    The purpose of this study was to develop methodologies for establishing baseline datasets and statistical protocols for determining statistically significant changes between background concentrations and predicted concentrations that would be used to represent a contamination plume in the Gen II models being developed by NRAP’s Groundwater Protection team. The initial effort examined selected portions of two aquifer systems; the urban shallow-unconfined aquifer system of the Edwards-Trinity Aquifer System (being used to develop the ROM for carbon-rock aquifers, and the a portion of the High Plains Aquifer (an unconsolidated and semi-consolidated sand and gravel aquifer, being used to development the ROM for sandstone aquifers). Threshold values were determined for Cd, Pb, As, pH, and TDS that could be used to identify contamination due to predicted impacts from carbon sequestration storage reservoirs, based on recommendations found in the EPA’s “Unified Guidance for Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities” (US Environmental Protection Agency 2009). Results from this effort can be used to inform a “no change” scenario with respect to groundwater impacts, rather than the use of an MCL that could be significantly higher than existing concentrations in the aquifer.

  2. Development of an Energy Consumption Model at a Multi-Product Chemical Plant

    E-Print Network [OSTI]

    Wyhs, N. A.; Logsdon, J. E.

    1980-01-01T23:59:59.000Z

    A plant-wide energy model is being developed to be used primarily as a planning tool to evaluate the impact of energy conservation projects and plant expansions on the total plant energy balance. Statistical analysis of historical data from each...

  3. NREL: Energy Analysis - Jobs and Economic Development Impact (JEDI) Models

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparency Visit | NationalWebmaster To contactK-12BSM -JEDI Jobs

  4. Job and Economic Development Impact Models (JEDI) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarmsPower Co LtdTN LLC JumpJilin HuayiJilin Wind

  5. Modelling Agricultural Trade and Policy Impacts in Less Developed Countries

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose BendMiasole IncMinuteman WindMoana(Tempel, Et Al.,

  6. NREL: Jobs and Economic Development Impact (JEDI) Models - About JEDI

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with Us Photo ofAModels

  7. NREL: Jobs and Economic Development Impact (JEDI) Models - Advanced Users

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with Us Photo

  8. NREL: Jobs and Economic Development Impact (JEDI) Models - Interpreting

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with Us PhotoJEDI

  9. NREL: Jobs and Economic Development Impact (JEDI) Models - Limitations of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with Us PhotoJEDIJEDI

  10. NREL: Jobs and Economic Development Impact (JEDI) Models - Methodology

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with Us

  11. NREL: Jobs and Economic Development Impact (JEDI) Models - Publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with UsPublications The

  12. NREL: Jobs and Economic Development Impact (JEDI) Models - Webmaster

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with UsPublications

  13. NREL: Jobs and Economic Development Impacts (JEDI) Models - About JEDI

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking with UsPublicationsMarine &

  14. New Model Examines Cumulative Impacts of Wind Energy Development on

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in Many DevilsForumEngines | Department of EnergySensitive Species |

  15. Building Energy Model Development for Retrofit Homes

    SciTech Connect (OSTI)

    Chasar, David; McIlvaine, Janet; Blanchard, Jeremy; Widder, Sarah H.; Baechler, Michael C.

    2012-09-30T23:59:59.000Z

    Based on previous research conducted by Pacific Northwest National Laboratory and Florida Solar Energy Center providing technical assistance to implement 22 deep energy retrofits across the nation, 6 homes were selected in Florida and Texas for detailed post-retrofit energy modeling to assess realized energy savings (Chandra et al, 2012). However, assessing realized savings can be difficult for some homes where pre-retrofit occupancy and energy performance are unknown. Initially, savings had been estimated using a HERS Index comparison for these homes. However, this does not account for confounding factors such as occupancy and weather. This research addresses a method to more reliably assess energy savings achieved in deep energy retrofits for which pre-retrofit utility bills or occupancy information in not available. A metered home, Riverdale, was selected as a test case for development of a modeling procedure to account occupancy and weather factors, potentially creating more accurate estimates of energy savings. This “true up” procedure was developed using Energy Gauge USA software and post-retrofit homeowner information and utility bills. The 12 step process adjusts the post-retrofit modeling results to correlate with post-retrofit utility bills and known occupancy information. The “trued” post retrofit model is then used to estimate pre-retrofit energy consumption by changing the building efficiency characteristics to reflect the pre-retrofit condition, but keeping all weather and occupancy-related factors the same. This creates a pre-retrofit model that is more comparable to the post-retrofit energy use profile and can improve energy savings estimates. For this test case, a home for which pre- and post- retrofit utility bills were available was selected for comparison and assessment of the accuracy of the “true up” procedure. Based on the current method, this procedure is quite time intensive. However, streamlined processing spreadsheets or incorporation into existing software tools would improve the efficiency of the process. Retrofit activity appears to be gaining market share, and this would be a potentially valuable capability with relevance to marketing, program management, and retrofit success metrics.

  16. Evaluation of Economic Impact of Three-Dimensional Modeling in Precast Concrete Engineering

    E-Print Network [OSTI]

    Sacks, Rafael

    Evaluation of Economic Impact of Three-Dimensional Modeling in Precast Concrete Engineering Rafael (IT); Concrete, precast; Economic factors; Three-dimensional models. Introduction "The application to this; but the funda- mental reason undoubtedly was economic." (Mitchell 1977). Intuitive assessments

  17. Modelling the impact of user behaviour on heat energy consumption

    E-Print Network [OSTI]

    Combe, Nicola Miss; Harrison, David Professor; Way, Celia Miss

    2011-01-01T23:59:59.000Z

    strategies impact on energy consumption in residentialBEHAVIOUR ON HEAT ENERGY CONSUMPTION Nicola Combe 1 ,2 ,nearly 60% of domestic energy consumption and 27% of total

  18. Probabilistic Modelling of Plug-in Hybrid Electric Vehicle Impacts on Distribution Networks in

    E-Print Network [OSTI]

    Victoria, University of

    Probabilistic Modelling of Plug-in Hybrid Electric Vehicle Impacts on Distribution Networks Committee Probabilistic Modelling of Plug-in Hybrid Electric Vehicle Impacts on Distribution Networks) Departmental Member Plug-in hybrid electric vehicles (PHEVs) represent a promising future direction

  19. Economic Development Impacts of Colorado's First 1,000 Megawatts of Wind Energy

    SciTech Connect (OSTI)

    Not Available

    2009-01-01T23:59:59.000Z

    This fact sheet summarizes the findings of a report authored by Sandra Reategui and Suzanne Tegen of the National Renewable Energy Laboratory (NREL). A confluence of events ignited soaring growth in the number of Colorado?s wind power installations in recent years, from 291 megawatts (MW) of nameplate capacity in 2006 to 1,067 MW (nameplate capacity) in 2007. Analyzing the economic impact of Colorado?s first 1,000 MW of wind energy development not only provides a summary of benefits now enjoyed by the state?s population, but it also provides a sense of the economic development opportunities associated with other new wind project scenarios, including the U.S. Department of Energy?s 20% Wind Energy by 2030 scenario. The analysis can be used by interested parties in other states as an example of the potential economic impacts if they were to adopt 1,000 MW of wind power development.

  20. Transient Inverse Calibration of Hanford Site-Wide Groundwater Model to Hanford Operational Impacts - 1943 to 1996

    SciTech Connect (OSTI)

    Cole, Charles R.; Bergeron, Marcel P.; Wurstner, Signe K.; Thorne, Paul D.; Orr, Samuel; Mckinley, Mathew I.

    2001-05-31T23:59:59.000Z

    This report describes a new initiative to strengthen the technical defensibility of predictions made with the Hanford site-wide groundwater flow and transport model. The focus is on characterizing major uncertainties in the current model. PNNL will develop and implement a calibration approach and methodology that can be used to evaluate alternative conceptual models of the Hanford aquifer system. The calibration process will involve a three-dimensional transient inverse calibration of each numerical model to historical observations of hydraulic and water quality impacts to the unconfined aquifer system from Hanford operations since the mid-1940s.

  1. Electrolyte Model Helps Researchers Develop Better Batteries...

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

    Sensor Reduces Fuel Consumption, Wins R&D 100 Award U.S. Department of Energy Projects Win 31 R&D 100 Awards for 2014 Project Overview Positive Impact Radio Frequency Diesel...

  2. Approaches and Financial Models for Scaling up Norwegian Development...

    Open Energy Info (EERE)

    Financial Models for Scaling up Norwegian Development Assistance to Clean Energy Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Approaches and Financial Models for...

  3. Impact fracture behavior of model system modified polypropylene

    E-Print Network [OSTI]

    Estrada, Albert Jesse

    2000-01-01T23:59:59.000Z

    -edge-notched three-point-bend tests were performed to obtain the values of fracture toughness. A correlation exists between the Izod impact values and the size of the damage zone after fracture. Damage analysis using the double-notch four-point-bend Charpy impact...

  4. Environmental Impacts of Wind Power Development on the Population Biology of Greater Prairie-Chickens

    SciTech Connect (OSTI)

    Sandercock, Brett K. [Kansas State University

    2013-05-22T23:59:59.000Z

    Executive Summary 1. We investigated the impacts of wind power development on the demography, movements, and population genetics of Greater Prairie-Chickens (Tympanuchus cupido) at three sites in northcentral and eastern Kansas for a 7-year period. Only 1 of 3 sites was developed for wind power, the 201MW Meridan Way Wind Power Facility at the Smoky Hills site in northcentral Kansas. Our project report is based on population data for prairie chickens collected during a 2-year preconstruction period (2007-2008), a 3-year postconstruction period (2009-2011) and one final year of lek surveys (2012). Where relevant, we present preconstruction data from our field studies at reference sites in the northern Flint Hills (2007-2009) and southern Flint Hills (2006-2008). 2. We addressed seven potential impacts of wind power development on prairie chickens: lek attendance, mating behavior, use of breeding habitat, fecundity rates, natal dispersal, survival rates, and population numbers. Our analyses of pre- and postconstruction impacts are based on an analysis of covariance design where we modeled population performance as a function of treatment period, distance to eventual or actual site of the nearest wind turbine, and the interaction of these factors. Our demographic and movement data from the 6-year study period at the Smoky Hills site included 23 lek sites, 251 radio-marked females monitored for 287 bird-years, and 264 nesting attempts. Our genetic data were based on genotypes of 1,760 females, males and chicks that were screened with a set of 27 microsatellite markers that were optimized in the lab. 3. In our analyses of lek attendance, the annual probability of lek persistence during the preconstruction period was ~0.9. During the postconstruction period, distance to nearest turbine did not have a significant effect on the probability of lek persistence. However, the probability of lek persistence increased from 0.69 at 0 m to 0.89 at 30 km from turbines, and most abandoned lek sites were located <5 km from turbines. Probability of lek persistence was significantly related to habitat and number of males. Leks had a higher probability of persistence in grasslands than agricultural fields, and increased from ~0.2 for leks of 5 males, to >0.9 for leks of 10 or more males. Large leks in grasslands should be a higher priority for conservation. Overall, wind power development had a weak effect on the annual probability of lek persistence. 3. We used molecular methods to investigate the mating behavior of prairie chickens. The prevailing view for lek-mating grouse is that females mate once to fertilize the clutch and that conspecific nest parasitism is rare. We found evidence that females mate multiple times to fertilize the clutch (8-18% of broods, 4-38% of chicks) and will parasitize nests of other females during egg-laying (~17% of nests). Variable rates of parentage were highest in the fragmented landscapes at the Smoky Hills field site, and were lower at the Flint Hills field site. Comparisons of the pre- and postconstruction periods showed that wind energy development did not affect the mating behaviors of prairie chickens. 4. We examined use of breeding habitats by radio-marked females and conducted separate analyses for nest site selection, and movements of females not attending nests or broods. The landscape was a mix of native prairie and agricultural habitats, and nest site selection was not random because females preferred to nest in grasslands. Nests tended to be closer to turbines during the postconstruction period and there was no evidence of behavioral avoidance of turbines by females during nest site selection. Movements of females not attending nests or broods showed that females crossed the site of the wind power development at higher rates during the preconstruction period (20%) than the postconstruction period (11%), and that movements away from turbines were more frequent during the postconstruction period. Thus, wind power development appears to affect movements in breeding habitats but not nest site s

  5. Developing fast and efficient climate models

    E-Print Network [OSTI]

    Williamson, Mark

    , based on the global model of Tim Lenton. The resulting package comprises an Earth System Model was closely integrated with the GENIE (Grid ENabled Integrated Earth system model) project, funded by the NERC

  6. Analyzing the private development model for university real estate development

    E-Print Network [OSTI]

    Gerrity, James F., IV (James Francis)

    2009-01-01T23:59:59.000Z

    Universities within the Unites States have long been active in the real estate development market surrounding their respective campuses. However, beginning with the baby boom in the late 1950s, colleges have begun expanding ...

  7. Valuing Climate Impacts in Integrated Assessment Models: The MIT IGSM

    E-Print Network [OSTI]

    Reilly, John

    2012-05-22T23:59:59.000Z

    We discuss a strategy for investigating the impacts of climate change on Earth’s physical, biological and human resources and links to their socio-economic consequences. The features of the integrated global system framework ...

  8. Development and application of a photovoltaic financial model

    E-Print Network [OSTI]

    Dietz, Brad

    2010-01-01T23:59:59.000Z

    Due to the relative immaturity of the solar farm industry, there are very few comprehensive financial models in use. I address this by developing a photovoltaic NPV financial model and apply the model to various base cases ...

  9. Developing a Conceptual Model of Virtual Organizations for Citizen Science

    E-Print Network [OSTI]

    Crowston, Kevin

    Developing a Conceptual Model of Virtual Organizations for Citizen Science Andrea Wiggins Syracuse-oriented conceptual model of scientific knowledge production through citizen science virtual organizations. Citizen: conceptual models, virtual organizations, citizen science, cyberinfrastructure, massive virtual

  10. Wednesday, March 25, 2009 IMPACTS I: MODELS AND EXPERIMENTS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    of the Decomposition Boundary of CaCO3 at High Temperature: Implications for Impact-induced Degassing of CaCO3 [#1569] We experimentally determined the decomposition boundary of CaCO3 up to ~5000 K and ~10 GPa with a technique of laser-heated diamond-anvil cell. Then, impact-induced degassing of CaCO3 is discussed using

  11. A multi-scale approach to address environmental impacts of small hydropower development

    SciTech Connect (OSTI)

    McManamay, Ryan A [ORNL; Samu, Nicole M [ORNL; Kao, Shih-Chieh [ORNL; Bevelhimer, Mark S [ORNL; Hetrick, Shelaine L [ORNL

    2014-01-01T23:59:59.000Z

    Hydropower development continues to grow worldwide in developed and developing countries. While the ecological and physical responses to dam construction have been well documented, translating this information into planning for hydropower development is extremely difficult. Very few studies have conducted environmental assessments to guide site-specific or widespread hydropower development. Herein, we propose a spatial approach for estimating environmental effects of hydropower development at multiple scales, as opposed to individual site-by-site assessments (e.g., environmental impact assessment). Because the complex, process-driven effects of future hydropower development may be uncertain or, at best, limited by available information, we invested considerable effort in describing novel approaches to represent environmental concerns using spatial data and in developing the spatial footprint of hydropower infrastructure. We then use two case studies in the US, one at the scale of the conterminous US and another within two adjoining rivers basins, to examine how environmental concerns can be identified and related to areas of varying energy capacity. We use combinations of reserve-design planning and multi-metric ranking to visualize tradeoffs among environmental concerns and potential energy capacity. Spatial frameworks, like the one presented, are not meant to replace more in-depth environmental assessments, but to identify information gaps and measure the sustainability of multi-development scenarios as to inform policy decisions at the basin or national level. Most importantly, the approach should foster discussions among environmental scientists and stakeholders regarding solutions to optimize energy development and environmental sustainability.

  12. Impact of the U.S. National Building Information Model Standard (NBIMS) on Building Energy Performance Simulation

    SciTech Connect (OSTI)

    Bazjanac, Vladimir

    2007-08-01T23:59:59.000Z

    The U.S. National Institute for Building Sciences (NIBS) started the development of the National Building Information Model Standard (NBIMS). Its goal is to define standard sets of data required to describe any given building in necessary detail so that any given AECO industry discipline application can find needed data at any point in the building lifecycle. This will include all data that are used in or are pertinent to building energy performance simulation and analysis. This paper describes the background that lead to the development of NBIMS, its goals and development methodology, its Part 1 (Version 1.0), and its probable impact on building energy performance simulation and analysis.

  13. Development of Models to Simulate Tracer Behavior in Enhanced Geothermal Systems

    SciTech Connect (OSTI)

    Williams, Mark D.; Vermeul, Vincent R.; Reimus, P. W.; Newell, D.; Watson, Tom B.

    2010-06-01T23:59:59.000Z

    A recent report found that power and heat produced from engineered (or enhanced) geothermal systems (EGSs) could have a major impact on the United States while incurring minimal environmental impacts. EGS resources differ from high-grade hydrothermal resources in that they lack sufficient temperature distributions, permeability/porosity, fluid saturation, or recharge of reservoir fluids. Therefore, quantitative characterization of temperature distributions and the surface area available for heat transfer in EGS is necessary for commercial development of geothermal energy. The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate this characterization. Modeling capabilities are being developed as part of this project to support laboratory and field testing to characterize engineered geothermal systems in single- and multi-well tests using tracers. The objective of this report is to describe the simulation plan and the status of model development for simulating tracer tests for characterizing EGS.

  14. Modelling of environmental impacts of solid waste landfilling within the life-cycle analysis program EASEWASTE

    SciTech Connect (OSTI)

    Kirkeby, Janus T.; Birgisdottir, Harpa [Environment and Resources, Technical University of Denmark, DTU, Building 113, DK-2800 Kgs. Lyngby (Denmark); Bhander, Gurbakash Singh; Hauschild, Michael [Department of Manufacturing Engineering and Management, Technical University of Denmark, Building 424, DK-2800 Lyngby (Denmark); Christensen, Thomas H. [Environment and Resources, Technical University of Denmark, DTU, Building 113, DK-2800 Kgs. Lyngby (Denmark)], E-mail: thc@er.dtu.dk

    2007-07-01T23:59:59.000Z

    A new computer-based life-cycle assessment model (EASEWASTE) has been developed to evaluate resource and environmental consequences of solid waste management systems. This paper describes the landfilling sub-model used in the life-cycle assessment program EASEWASTE, and examines some of the implications of this sub-model. All quantities and concentrations of leachate and landfill gas can be modified by the user in order to bring them in agreement with the actual landfill that is assessed by the model. All emissions, except the generation of landfill gas, are process specific. The landfill gas generation is calculated on the basis of organic matter in the landfilled waste. A landfill assessment example is provided. For this example, the normalised environmental effects of landfill gas on global warming and photochemical smog are much greater than the environmental effects for landfill leachate or for landfill construction. A sensitivity analysis for this example indicates that the overall environmental impact is sensitive to the gas collection efficiency and the use of the gas, but not to the amount of leachate generated, or the amount of soil or liner material used in construction. The landfill model can be used for evaluating different technologies with different liners, gas and leachate collection efficiencies, and to compare the environmental consequences of landfilling with alternative waste treatment options such as incineration or anaerobic digestion.

  15. Aerosol cluster impact and break-up : II. Atomic and Cluster Scale Models.

    SciTech Connect (OSTI)

    Lechman, Jeremy B.; Takato, Yoichi (State University of New York at Buffalo, Buffalo, NY)

    2010-09-01T23:59:59.000Z

    Understanding the interaction of aerosol particle clusters/flocs with surfaces is an area of interest for a number of processes in chemical, pharmaceutical, and powder manufacturing as well as in steam-tube rupture in nuclear power plants. Developing predictive capabilities for these applications involves coupled phenomena on multiple length and timescales from the process macroscopic scale ({approx}1m) to the multi-cluster interaction scale (1mm-0.1m) to the single cluster scale ({approx}1000 - 10000 particles) to the particle scale (10nm-10{micro}m) interactions, and on down to the sub-particle, atomic scale interactions. The focus of this report is on the single cluster scale; although work directed toward developing better models of particle-particle interactions by considering sub-particle scale interactions and phenomena is also described. In particular, results of mesoscale (i.e., particle to single cluster scale) discrete element method (DEM) simulations for aerosol cluster impact with rigid walls are presented. The particle-particle interaction model is based on JKR adhesion theory and is implemented as an enhancement to the granular package in the LAMMPS code. The theory behind the model is outlined and preliminary results are shown. Additionally, as mentioned, results from atomistic classical molecular dynamics simulations are also described as a means of developing higher fidelity models of particle-particle interactions. Ultimately, the results from these and other studies at various scales must be collated to provide systems level models with accurate 'sub-grid' information for design, analysis and control of the underlying systems processes.

  16. Development of Distributed Programming Developing Tool-Kit Based on Object Group Model

    E-Print Network [OSTI]

    Joo, Su-Chong

    Development of Distributed Programming Developing Tool-Kit Based on Object Group Model Jeong of the grouped distributed objects[10-14], as a logical unit of distributed application service, and developed a distributed programming developing tool-kit based on object group model(OGM-DPD Tool-Kit). This Tool- Kit can

  17. The role of science in environmental impact assessment: process and procedure versus purpose in the development of theory

    SciTech Connect (OSTI)

    Cashmore, Matthew

    2004-05-01T23:59:59.000Z

    Increasing emphasis has been placed in recent years on development of the theory of Environmental Impact Assessment (EIA), primarily as a consequence of increasing recognition that the theoretical basis of 'state-of-the-art' EIA is inadequately developed and detailed. This study reviews consideration given in the research literature to the role of science in EIA in order to identify implicit theories. It is suggested that there are two main interpretations of the role of science in EIA (EIA as applied science and EIA as civic science) and five distinct models are identified within these paradigms. These models appear to be based predominantly on existing philosophies of science (such as positivism or relativism) and simplistic and ill-defined conceptions of the purposes of EIA. A broad model is proposed for the advancement of theory regarding the role of science in EIA which emphasises conceptual consideration and empirical investigation of the purposes, and hence outcomes, of EIA and the causal processes utilised to achieve these purposes. The model necessitates a reorientation of the research agenda, away from process and procedure to focus on substantive purposes, and this will require more integrative and connective research than has been commonplace in the past. The EIA research agenda must evolve and mature if this globally significant decision tool is to fulfil its potential.

  18. A Budget Impact Model for Paclitaxel-eluting Stent in Femoropopliteal Disease in France

    SciTech Connect (OSTI)

    De Cock, Erwin, E-mail: erwin.decock@unitedbiosource.com [United BioSource Corporation, Peri- and Post-Approval Services (Spain); Sapoval, Marc, E-mail: Marc.sapoval2@egp.aphp.fr [Hopital Europeen Georges Pompidou, Universite Rene Descartes, Department of Cardiovascular and Interventional Radiology (France)] [Hopital Europeen Georges Pompidou, Universite Rene Descartes, Department of Cardiovascular and Interventional Radiology (France); Julia, Pierre, E-mail: pierre.julia@egp.aphp.fr [Hopital Europeen Georges Pompidou, Universite Rene Descartes, Cardiovascular Surgery Department (France)] [Hopital Europeen Georges Pompidou, Universite Rene Descartes, Cardiovascular Surgery Department (France); Lissovoy, Greg de, E-mail: gdelisso@jhsph.edu [Johns Hopkins Bloomberg School of Public Health, Department of Health Policy and Management (United States); Lopes, Sandra, E-mail: Sandra.Lopes@CookMedical.com [Cook Medical, Health Economics and Reimbursement (Denmark)] [Cook Medical, Health Economics and Reimbursement (Denmark)

    2013-04-15T23:59:59.000Z

    The Zilver PTX drug-eluting stent (Cook Ireland Ltd., Limerick, Ireland) represents an advance in endovascular treatments for atherosclerotic superficial femoral artery (SFA) disease. Clinical data demonstrate improved clinical outcomes compared to bare-metal stents (BMS). This analysis assessed the likely impact on the French public health care budget of introducing reimbursement for the Zilver PTX stent. A model was developed in Microsoft Excel to estimate the impact of a progressive transition from BMS to Zilver PTX over a 5-year horizon. The number of patients undergoing SFA stenting was estimated on the basis of hospital episode data. The analysis from the payer perspective used French reimbursement tariffs. Target lesion revascularization (TLR) after primary stent placement was the primary outcome. TLR rates were based on 2-year data from the Zilver PTX single-arm study (6 and 9 %) and BMS rates reported in the literature (average 16 and 22 %) and extrapolated to 5 years. Net budget impact was expressed as the difference in total costs (primary stenting and reinterventions) for a scenario where BMS is progressively replaced by Zilver PTX compared to a scenario of BMS only. The model estimated a net cumulative 5-year budget reduction of Euro-Sign 6,807,202 for a projected population of 82,316 patients (21,361 receiving Zilver PTX). Base case results were confirmed in sensitivity analyses. Adoption of Zilver PTX could lead to important savings for the French public health care payer. Despite higher initial reimbursement for the Zilver PTX stent, fewer expected SFA reinterventions after the primary stenting procedure result in net savings.

  19. FastFEM: Breaking Wave Impact on Ships Wave breaking and wave impact on maritime structures are difficult to model

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    are difficult to model mathematically and numerically. The challenge is that nonlinear and breaking waves with fine-scale dynamic air-water interfaces need to be modelled efficiently, including their interactions measurements in wave basins. These potential flow models will be developed further at the University of Twente

  20. Impact of Ethanol on Benzene Plume Lengths: Microbial and Modeling Studies

    E-Print Network [OSTI]

    Alvarez, Pedro J.

    Impact of Ethanol on Benzene Plume Lengths: Microbial and Modeling Studies Rula A. Deeb1 ; Jonathan with Federal Clean Air Act requirements for carbon monoxide and ozone attainment, ethanol is being considered as a replacement for MTBE. The objective of this study is to evaluate the potential impact of ethanol on benzene

  1. Accepted Manuscript Integrated models to study the impact of ELMs and disruptions on lithium in

    E-Print Network [OSTI]

    Harilal, S. S.

    geometrical effects on divertor erosion dynamics. Lithium expansion in divertor and SOL areas may potentiallyAccepted Manuscript Integrated models to study the impact of ELMs and disruptions on lithium the impact of ELMs and disruptions on lithium in the NSTX divertor, Journal of Nuclear Materials (2010), doi

  2. Evolution of a Visual Impact Model to Evaluate Nuclear Plant Siting and Design Option1

    E-Print Network [OSTI]

    Standiford, Richard B.

    Evolution of a Visual Impact Model to Evaluate Nuclear Plant Siting and Design Option1 2/ Brian A and economic options for the analysis of nuclear plant siting possibilities (Burnham 1974; Jones, April 1975 of nuclear plant siting options for the AEC. BNWL's multi-disciplinary impact evaluation pro- cedure required

  3. Modeling impacts of carbon sequestration on net greenhouse gas emissions from agricultural soils in China

    E-Print Network [OSTI]

    Modeling impacts of carbon sequestration on net greenhouse gas emissions from agricultural soils impacts of carbon sequestration on net greenhouse gas emissions from agricultural soils in China, Global Biogeochem. Cycles, 23, GB1007, doi:10.1029/2008GB003180. 1. Introduction [2] Carbon (C) sequestration has

  4. Impact of Jitter-based Techniques on Flooding over Wireless Ad hoc Networks: Model and Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Impact of Jitter-based Techniques on Flooding over Wireless Ad hoc Networks: Model and Analysis Philippe.Jacquet@inria.fr Emmanuel Baccelli INRIA, France Emmanuel.Baccelli@inria.fr Abstract--Jitter. This paper investigates on the impact of the standardized jitter mechanism on network-wide packet

  5. Coral reefs reduce tsunami impact in model simulations Catherine M. Kunkel,1

    E-Print Network [OSTI]

    Oppenheimer, Michael

    Coral reefs reduce tsunami impact in model simulations Catherine M. Kunkel,1 Robert W. Hallberg,2 14 December 2006. [1] Significant buffering of the impact of tsunamis by coral reefs is suggested against tsunamis. Citation: Kunkel, C. M., R. W. Hallberg, and M. Oppenheimer (2006), Coral reefs reduce

  6. Modeling High-Impact Weather and Climate: Lessons From a Tropical Cyclone Perspective

    SciTech Connect (OSTI)

    Done, James; Holland, Greg; Bruyere, Cindy; Leung, Lai-Yung R.; Suzuki-Parker, Asuka

    2013-10-19T23:59:59.000Z

    Although the societal impact of a weather event increases with the rarity of the event, our current ability to assess extreme events and their impacts is limited by not only rarity but also by current model fidelity and a lack of understanding of the underlying physical processes. This challenge is driving fresh approaches to assess high-impact weather and climate. Recent lessons learned in modeling high-impact weather and climate are presented using the case of tropical cyclones as an illustrative example. Through examples using the Nested Regional Climate Model to dynamically downscale large-scale climate data the need to treat bias in the driving data is illustrated. Domain size, location, and resolution are also shown to be critical and should be guided by the need to: include relevant regional climate physical processes; resolve key impact parameters; and to accurately simulate the response to changes in external forcing. The notion of sufficient model resolution is introduced together with the added value in combining dynamical and statistical assessments to fill out the parent distribution of high-impact parameters. Finally, through the example of a tropical cyclone damage index, direct impact assessments are resented as powerful tools that distill complex datasets into concise statements on likely impact, and as highly effective communication devices.

  7. Modeling the large-scale water balance impact of different irrigation systems

    E-Print Network [OSTI]

    Evans, Jason

    Modeling the large-scale water balance impact of different irrigation systems J. P. Evans1 and B. F precipitation causes the Turkish government to invest in modernizing its own irrigation systems balance impact of different irrigation systems, Water Resour. Res., 44, W08448, doi:10.1029/2007WR006671

  8. Energy Integration for 2050 - A Strategic Impact Model (2050 SIM), Version 2.0

    SciTech Connect (OSTI)

    John Collins

    2011-09-01T23:59:59.000Z

    The United States (U.S.) energy infrastructure is among the most reliable, accessible, and economic in the world. On the other hand, it is also excessively reliant on foreign energy sources, experiences high volatility in energy prices, does not always practice good stewardship of finite indigenous energy resources, and emits significant quantities of greenhouse gas. The U.S. Department of Energy is conducting research and development on advanced nuclear reactor concepts and technologies, including High Temperature Gas Reactor (HTGR) technologies, directed at helping the United States meet its current and future energy challenges. This report discusses the Draft Strategic Impact Model (SIM), an initial version of which was created during the later part of FY-2010. SIM was developed to analyze and depict the benefits of various energy sources in meeting the energy demand and to provide an overall system understanding of the tradeoffs between building and using HTGRs versus other existing technologies for providing energy (heat and electricity) to various energy-use sectors in the United States. This report also provides the assumptions used in the model, the rationale for the methodology, and the references for the source documentation and source data used in developing the SIM.

  9. Energy Integration for 2050 - A Strategic Impact Model (2050 SIM), Version 1.0

    SciTech Connect (OSTI)

    Not Available

    2010-10-01T23:59:59.000Z

    The United States (U.S.) energy infrastructure is among the most reliable, accessible, and economic in the world. On the other hand, it is also excessively reliant on foreign energy sources, experiences high volatility in energy prices, does not always practice good stewardship of finite indigenous energy resources, and emits significant quantities of greenhouse gas. The U.S. Department of Energy is conducting research and development on advanced nuclear reactor concepts and technologies, including High Temperature Gas Reactor (HTGR) technologies, directed at helping the United States meet its current and future energy challenges. This report discusses the Draft Strategic Impact Model (SIM), an initial version of which was created during the later part of FY-2010. SIM was developed to analyze and depict the benefits of various energy sources in meeting the energy demand and to provide an overall system understanding of the tradeoffs between building and using HTGRs versus other existing technologies for providing energy (heat and electricity) to various energy-use sectors in the United States. This report also provides the assumptions used in the model, the rationale for the methodology, and the references for the source documentation and source data used in developing the SIM.

  10. Evaluating the use of Social Impact Assessment in the context of agricultural development projects in Iran

    SciTech Connect (OSTI)

    Ahmadvand, Mostafa, E-mail: ahmadvand_2000@yahoo.co [Faculty of Agriculture, Yasuj University, Yasuj (Iran, Islamic Republic of); Karami, Ezatollah, E-mail: ekarami@shirazu.ac.i [Department of Agricultural Extension and Education, College of Agriculture, Shiraz University, Shiraz (Iran, Islamic Republic of); Zamani, Gholam Hossein, E-mail: zamani@shirazu.ac.i [Department of Agricultural Extension and Education, College of Agriculture, Shiraz University, Shiraz (Iran, Islamic Republic of); Vanclay, Frank, E-mail: Frank.Vanclay@utas.edu.a [Tasmanian Institute of Agricultural Research, University of Tasmania, Hobart (Australia)

    2009-11-15T23:59:59.000Z

    The utilisation of Social Impact Assessment (SIA) in Iran is analysed in terms of its policy context and its application in practice. Five case studies where SIA was employed in conjunction with Environmental Impact Assessments (EIA) for agricultural development projects are evaluated. In addition, the performance of the policy context is assessed. This research revealed that there are legal and institutional constraints to the effective functioning of SIA in Iran, and that there are deficiencies in the operating guidelines. There were serious problems associated with the way SIA was undertaken in all five case studies. Recommendations to improve the policy framework for the conduct of SIA are made. The recommendations advocate for a higher profile of SIA within legislation, for social issues to have greater emphasis in official guidelines for the conduct of EIA and SIA, and for a range of measures to increase the professionalism of SIA practice.

  11. Developing an indicator for the chronic health impact of traffic-related pollutant emissions

    SciTech Connect (OSTI)

    Lepicier, Veronique [IFSTTAR, Laboratoire Transport et Environnement, 25, av. F. Mitterrand, 69675 Bron Cedex (France); Chiron, Mireille [IFSTTAR, UMRESTTE, 25, av. F. Mitterrand, 69675 Bron Cedex (France); Joumard, Robert, E-mail: robert.joumard@laposte.net [IFSTTAR, Laboratoire Transport et Environnement, 25, av. F. Mitterrand, 69675 Bron Cedex (France)

    2013-01-15T23:59:59.000Z

    The goal of this study is to develop an emission based indicator for the health impact of the air pollution caused by traffic. This indicator must make it possible to compare different situations, for example different Urban Travel Plans, or technical innovations. Our work is based on a literature survey of methods for evaluating health impacts and, more particularly, those which relate to the atmospheric pollution caused by transport. We then define a health impact indicator based on the traffic emissions, named IISCEP for Chronic health impact indicator of pollutant emission. Here health is understood in a restricted meaning, excluding well-being. Only primary pollutants can be considered, as the inputs are emission data and an indicator must be simple. The indicator is calculated as the sum of each pollutant emission multiplied by a dispersion and exposition factor and a substance specific toxicity factor taking account of the severity. Last, two examples are shown using the IISCEP: comparison between petrol and diesel vehicles, and Nantes urban district in 2008 vs 2002. Even if it could still be improved, IISCEP is a straightforward indicator which can be used to gauge the chronic effects of inhaling primary pollutants. It can only be used in comparisons, between different scenarios or different technologies. The quality of the emissions data and the choice of the pollutants that are considered are the two essential factors that determine its validity and reliability. - Highlights: Black-Right-Pointing-Pointer The goal of the study is to develop an emission based indicator for the health impact of the air pollution caused by traffic. Black-Right-Pointing-Pointer It is based on a literature survey of methods for evaluating health impacts related to the atmospheric pollution. Black-Right-Pointing-Pointer We define a composite indicator based on the traffic emissions and on local data as dispersion conditions and population. Black-Right-Pointing-Pointer The indicator is a combination of pollutant emission, dispersion, exposition factor, and substance specific toxicity factor. Black-Right-Pointing-Pointer Applications are global (e.g. comparison of vehicle technologies) or local (e.g. comparison of populations or areas).

  12. Selection of Model in Developing Information Security Criteria for Smart Grid Security System

    E-Print Network [OSTI]

    Ling, Amy Poh Ai

    2011-01-01T23:59:59.000Z

    At present, the "Smart Grid" has emerged as one of the best advanced energy supply chains. This paper looks into the security system of smart grid via the smart planet system. The scope focused on information security criteria that impact on consumer trust and satisfaction. The importance of information security criteria is perceived as the main aspect to impact on customer trust throughout the entire smart grid system. On one hand, this paper also focuses on the selection of the model for developing information security criteria on a smart grid.

  13. Impact of aerothermal modeling on the estimation of turbine blade life

    E-Print Network [OSTI]

    Collin, Jean E., 1978-

    2004-01-01T23:59:59.000Z

    The impact of aerothermal modeling on estimates of turbine blade heat transfer and life was assessed for three high pressure turbine blades. The work was conducted as part of a project aimed at the evaluation of the effect ...

  14. Dynamic Model for Assessing Impact of Regeneration Actions on System Availability: Application to Weapon Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Dynamic Model for Assessing Impact of Regeneration Actions on System Availability: Application) Key Words: failure, damage, regeneration, availability assessment, stochastic activity networks, Monte Carlo simulations SUMMARY & CONCLUSIONS Availability is a determining factor in systems characterization

  15. Modeling the Impact of Agricultural Terrace Walls on Spatial Patterns of Erosion and Landscape Evolution

    E-Print Network [OSTI]

    Glaubius, Jennifer

    2014-11-19T23:59:59.000Z

    Modeling the Impact of Agricultural Terrace Walls on Spatial Patterns of Erosion and Landscape Evolution Jennifer Glaubius Department of Geography University of Kansas Research Objectives 2 1. Implement terrace walls within a landscape evolution...

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

    Broader source: Energy.gov [DOE]

    Video recording of the Fuel Cell Technologies Office webinar, DOE Updates JOBS and Economic Impacts of Fuel Cells (JOBS FC1.1) Model, originally presented on December 11, 2012.

  17. 11.482J / 1.285J / ESD.193J Regional Socioeconomic Impact Analysis and Modeling, Fall 2005

    E-Print Network [OSTI]

    Polenske, Karen R.

    Reviews regional economic theories and models and provides students with experience in using alternative economic impact assessment models on microcomputers. Problem sets are oriented around infrastructure, housing, energy, ...

  18. 11.482J / 1.285J / ESD.193J Regional Socioeconomic Impact Analysis and Modeling, Fall 2004

    E-Print Network [OSTI]

    Polenske, Karen R.

    Reviews regional economic theories and models and provides students with experience in using alternative economic impact assessment models on microcomputers. Problem sets are oriented around infrastructure, housing, energy, ...

  19. Thermal Properties of Methane Hydrate by Experiment and Modeling and Impacts on Technology

    SciTech Connect (OSTI)

    Warzinski, R.P.; Gamwo, I.K.; Rosenbaum, E.M.; Jiang, Hao; Jordan, K.D.; English, N.J. (Univ. College Dublin, IRELAND); Shaw, D.W. (Geneva College, Beaver Falls, PA)

    2008-07-01T23:59:59.000Z

    Thermal properties of pure methane hydrate, under conditions similar to naturally occurring hydrate-bearing sediments being considered for potential production, have been determined both by a new experimental technique and by advanced molecular dynamics simulation (MDS). A novel single-sided, Transient Plane Source (TPS) technique has been developed and used to measure thermal conductivity and thermal diffusivity values of low-porosity methane hydrate formed in the laboratory. The experimental thermal conductivity data are closely matched by results from an equilibrium MDS method using in-plane polarization of the water molecules. MDS was also performed using a non-equilibrium model with a fully polarizable force field for water. The calculated thermal conductivity values from this latter approach were similar to the experimental data. The impact of thermal conductivity on gas production from a hydrate-bearing reservoir was also evaluated using the Tough+/Hydrate reservoir simulator.

  20. Pattern of Trade and Economic Development in the Model

    E-Print Network [OSTI]

    Pattern of Trade and Economic Development in the Model of Monopolistic Competition Jeffrey D. Sachs for International Development at Harvard University #12;CID Working Paper no. 14 Pattern of Trade and Economic into the model of monopolistic competition to investigate the interplay between trade policies and development

  1. Development of a cell-based stream flow routing model

    E-Print Network [OSTI]

    Raina, Rajeev

    2005-08-29T23:59:59.000Z

    This study presents the development of a cell-based routing model. The model developed is a two parameter hydrological routing model that uses a coarse resolution stream network to route runoff from each cell in the watershed to the outlet...

  2. Modeling and Optimizing Ergonomic Activities in Automobile Product Development

    E-Print Network [OSTI]

    da Silva, Alberto Rodrigues

    Modeling and Optimizing Ergonomic Activities in Automobile Product Development JoĂŁo Ferreira Anna.silva@acm.org Abstract We collect ergonomic rules and normative rules considerations for automobile business and modeled these activities with a special UML language created for automobile business, VDML (Vehicle Development Modeling

  3. LAAS Ionosphere Spatial Gradient Threat Model and Impact of LGF and Airborne Monitoring

    E-Print Network [OSTI]

    Stanford University

    LAAS Ionosphere Spatial Gradient Threat Model and Impact of LGF and Airborne Monitoring Ming Luo of users for the current Category I LAAS architecture. In the ionosphere threat model used by previous-case ionosphere conditions. In this paper, the ionosphere threat model is reexamined based on WAAS and IGS data

  4. An impact model of the electrostatic force: Coulomb's law re-visited

    E-Print Network [OSTI]

    K. Wilhelm; B. N. Dwivedi; H. Wilhelm

    2014-05-27T23:59:59.000Z

    The electrostatic force is described in this model by the action of electric dipole distributions on charged particles. The individual hypothetical dipoles are propagating at the speed of light in vacuum transferring momentum and energy between charges through interactions on a local basis. The model is constructed in analogy to an impact model describing the gravitational forces.

  5. Multimedia-modeling integration development environment

    SciTech Connect (OSTI)

    Pelton, Mitchell A.; Hoopes, Bonnie L.

    2002-09-02T23:59:59.000Z

    There are many framework systems available; however, the purpose of the framework presented here is to capitalize on the successes of the Framework for Risk Analysis in Multimedia Environmental Systems (FRAMES) and Multi-media Multi-pathway Multi-receptor Risk Assessment (3MRA) methodology as applied to the Hazardous Waste Identification Rule (HWIR) while focusing on the development of software tools to simplify the module developer?s effort of integrating a module into the framework.

  6. PHEV Engine and Aftertreatment Model Development

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

    725K * Barriers - PHEV utilization of high efficiency engines is limited by transient engine performance and emissions controls - Data and models available for analyzing transient...

  7. PHEV Engine and Aftertreatment Model Development

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

    team and reduced work scope * Barriers - PHEV fuel efficiency limited by transient engine operation and emissions controls - Very limited transient engines and emissions models...

  8. Impacts of Federal Tax Laws and Economic Developments on the Texas Cattle Industry.

    E-Print Network [OSTI]

    Conner, J.R.; Dietrich, R.A.; Richardson, J.W.; Nixon, C.J.; Davis, E.E

    1987-01-01T23:59:59.000Z

    Experiment Station Texas A&M University System College Station, Texas Execu ti ve Summary Recent changes in the U.S. federal income tax provisions enacted in the Tax Reform Act of 1986 (TRA) will significantly alter the manner in which costs and revenues... of the TRA and other recent economic developments on future land and cattle prices are examined. Second, the impacts on the economic viability of representative ranch firms in selected major beef producing areas of Texas are analyzed using a firm -level...

  9. Development of a High-Performance Office Building Simulation Model for a Hot and Humid Climate

    E-Print Network [OSTI]

    Cho, S.; Haberl, J.

    -performance measures applicable to office buildings in hot and humid climates and to develop a high-performance (maximum energy-efficient) building model that only uses technologies readily available in the contemporary market. The high-performance model showed... requirements. This base-case model consumed a total of 7,721 GJ/yr. As shown in Figure 22, the implementation of occupancy sensors impacted the energy consumption the most, saving 11.2% of the total energy consumption. By this measure, indoor lights were...

  10. The Impact of Science Notebook Writing on ELL and Low-SES Students' Science Language Development and Conceptual Understanding 

    E-Print Network [OSTI]

    Huerta, Margarita

    2013-04-05T23:59:59.000Z

    This quantitative study explored the impact of literacy integration in a science inquiry classroom involving the use of science notebooks on the academic language development and conceptual understanding of students from diverse (i.e., English...

  11. Low-impact development in the Assabet River Watershed : site hydrologic design and watershed-scal implications

    E-Print Network [OSTI]

    Friedlich, Brian J. (Brian Joseph), 1982-

    2005-01-01T23:59:59.000Z

    Low-Impact Development (LID) is a relatively new approach to stormwater management. It aims to mimic natural hydrology through increased recharge and decreased runoff. LID technologies focus on distributed treatment of ...

  12. A streamlined real options model for Real Estate Development

    E-Print Network [OSTI]

    Barman, Baabak

    2007-01-01T23:59:59.000Z

    This thesis introduces a streamlined model that incorporates the value of the real options that exist in real estate development projects. Real options add value to a project by providing developers with flexibility to ...

  13. EIA models and capacity building in Viet Nam: an analysis of development aid programs

    SciTech Connect (OSTI)

    Doberstein, Brent

    2004-04-01T23:59:59.000Z

    There has been a decided lack of empirical research examining development aid agencies as 'agents of change' in environmental impact assessment (EIA) systems in developing countries, particularly research examining the model of environmental planning practice promoted by aid agencies as part of capacity building. This paper briefly traces a conceptual framework of EIA, then introduces the concept of 'EIA capacity building'. Using Viet Nam as a case study, the paper then outlines the empirical results of the research, focusing on the extent to which aid agency capacity-building programs promoted a Technical vs. Planning Model of EIA and on the coherence of capacity-building efforts across all aid programs. A discussion follows, where research results are interpreted within the Vietnamese context, and implications of research results are identified for three main groups of actors. The paper concludes by calling for development aid agencies to reconceptualise EIA capacity building as an opportunity to transform developing countries' development planning processes.

  14. Electrical Model Development and Validation for Distributed Resources

    SciTech Connect (OSTI)

    Simoes, M. G.; Palle, B.; Chakraborty, S.; Uriarte, C.

    2007-04-01T23:59:59.000Z

    This project focuses on the development of electrical models for small (1-MW) distributed resources at the National Renewable Energy Laboratory's Distributed Energy Resources Test Facility.

  15. aspen model development: Topics by E-print Network

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

    Brian Scassellati 2001-01-01 119 Development of Models for Optical Instrument Transformers. Open Access Theses and Dissertations Summary: ??Optical Instrument Transformers...

  16. accident development modeling: Topics by E-print Network

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

    Brian Scassellati 2001-01-01 87 Development of Models for Optical Instrument Transformers. Open Access Theses and Dissertations Summary: ??Optical Instrument Transformers...

  17. A new analytic-adaptive model for EGS assessment, development...

    Open Energy Info (EERE)

    Investigator(s) George Danko, UNR Other Principal Investigators Jens Birkholzer, LBNL; Jaak Daemen, UNR Targets Milestones The model development work follows three main...

  18. TSPA Model Development and Sensitivity Analysis of Processes...

    Office of Environmental Management (EM)

    Analysis of Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear Waste TSPA Model Development and Sensitivity Analysis of Processes...

  19. Watershed Management And Modeling Development and Application of

    E-Print Network [OSTI]

    Sukop, Mike

    30% of ponds, lakes and reservoirs 40% of estuaries #12;Watershed Management And Modeling Sources-transpiration Elemental responses are integrated to determine system response #12;Watershed Management And ModelingWatershed Management And Modeling Development and Application of Watershed Models for Simulation

  20. Developing fundamentally based models for autoignition

    E-Print Network [OSTI]

    Wijaya, Catherina D. (Catherina Dewi)

    2005-01-01T23:59:59.000Z

    There is renewed interest in autoignition, especially due to the recent development of the homogenous charge compression ignition (HCCI) engine, highly promising with its low Nox and particulate emissions and high efficiency. ...

  1. Financial modeling of new product development economics

    E-Print Network [OSTI]

    Balasubramaniam, Anitha

    2014-01-01T23:59:59.000Z

    Product design and development is a complex process that involves extensive engineering considerations as well as management decisions based on the overall vision for the product. Traditionally, most decision making in ...

  2. Development and Application of Earth System Models

    E-Print Network [OSTI]

    Prinn, Ronald G.

    The global environment is a complex and dynamic system. Earth system modeling is needed to help understand changes in interacting subsystems, elucidate the influence of human activities, and explore possible future changes. ...

  3. General Methodology for developing UML models from UI

    E-Print Network [OSTI]

    Reddy, Ch Ram Mohan; Srinivasa, K G; Kumar, T V Suresh; Kanth, K Rajani

    2012-01-01T23:59:59.000Z

    In recent past every discipline and every industry have their own methods of developing products. It may be software development, mechanics, construction, psychology and so on. These demarcations work fine as long as the requirements are within one discipline. However, if the project extends over several disciplines, interfaces have to be created and coordinated between the methods of these disciplines. Performance is an important quality aspect of Web Services because of their distributed nature. Predicting the performance of web services during early stages of software development is significant. In Industry, Prototype of these applications is developed during analysis phase of Software Development Life Cycle (SDLC). However, Performance models are generated from UML models. Methodologies for predicting the performance from UML models is available. Hence, In this paper, a methodology for developing Use Case model and Activity model from User Interface is presented. The methodology is illustrated with a case...

  4. Participatory health impact assessment for the development of local government regulation on hazard control

    SciTech Connect (OSTI)

    Inmuong, Uraiwan, E-mail: uraiwan@kku.ac.t [Department of Environmental Health Science, Faculty of Public Health, Khon Kaen University (Thailand); Faculty of Public Health, Khon Kaen University, Thailand 123 Mittrapharb Road, Khon Kaen 40002 (Thailand); Rithmak, Panee, E-mail: panrit@kku.ac.t [Department of Environmental Health Science, Faculty of Public Health, Khon Kaen University (Thailand); Faculty of Public Health, Khon Kaen University, Thailand 123 Mittrapharb Road, Khon Kaen 40002 (Thailand); Srisookwatana, Soomol, E-mail: soomol.s@anamai.mail.go.t [Public Health Law Administration Center, Department of Health, Ministry of Public Health (Thailand); Traithin, Nathathai, E-mail: nathathai.t@anamai.mail.go.t [Public Health Law Administration Center, Department of Health, Ministry of Public Health (Thailand); Maisuporn, Pornpun, E-mail: pornpun.m@anamai.mail.go.t [Public Health Law Administration Center, Department of Health, Ministry of Public Health (Thailand)

    2011-07-15T23:59:59.000Z

    The Thai Public Health Act 1992 required the Thai local governments to issue respective regulations to take control of any possible health-hazard related activities, both from commercial and noncommercial sources. Since 1999, there has been centrally decentralized of power to a new form of local government establishment, namely Sub-district Administrative Organization (SAO). The SAO is asmall-scale local governing structure while its legitimate function is for community services, including control of health impact related activities. Most elected SAO administrators and officers are new and less experience with any of public health code of practice, particularly on health-hazard control. This action research attempted to introduce and apply a participatory health impact assessment (HIA) tool for the development of SAO health-hazard control regulation. The study sites were at Ban Meang and Kok See SAOs, Khon Kaen Province, Thailand, while all intervention activities conducted during May 2005-April 2006. A set of cooperative activities between researchers and community representatives were planned and organized by; surveying and identifying place and service base locally causing local environmental health problems, organizing community participatory workshops for drafting and proposing the health-hazard control regulation, and appropriate practices for health-hazard controlling measures. This action research eventually could successfully enable the SAO administrators and officers understanding of local environmental-related health problem, as well as development of imposed health-hazard control regulation for local community.

  5. The Biofuels Revolution: Understanding the Social, Cultural and Economic Impacts of Biofuels Development on Rural Communities

    SciTech Connect (OSTI)

    Dr. Theresa L. Selfa; Dr. Richard Goe; Dr. Laszlo Kulcsar; Dr. Gerad Middendorf; Dr. Carmen Bain

    2013-02-11T23:59:59.000Z

    The aim of this research was an in-depth analysis of the impacts of biofuels industry and ethanol plants on six rural communities in the Midwestern states of Kansas and Iowa. The goal was to provide a better understanding of the social, cultural, and economic implications of biofuels development, and to contribute to more informed policy development regarding bioenergy.Specific project objectives were: 1. To understand how the growth of biofuel production has affected and will affect Midwestern farmers and rural communities in terms of economic, demographic, and socio-cultural impacts; 2. To determine how state agencies, groundwater management districts, local governments and policy makers evaluate or manage bioenergy development in relation to competing demands for economic growth, diminishing water resources, and social considerations; 3. To determine the factors that influence the water management practices of agricultural producers in Kansas and Iowa (e.g. geographic setting, water management institutions, competing water-use demands as well as producersâ?? attitudes, beliefs, and values) and how these influences relate to bioenergy feedstock production and biofuel processing; 4. To determine the relative importance of social-cultural, environmental and/or economic factors in the promotion of biofuels development and expansion in rural communities; The research objectives were met through the completion of six detailed case studies of rural communities that are current or planned locations for ethanol biorefineries. Of the six case studies, two will be conducted on rural communities in Iowa and four will be conducted on rural communities in Kansas. A â??multi-methodâ?ť or â??mixed methodâ?ť research methodology was employed for each case study.

  6. DOE Announces Webinars on an Offshore Wind Economic Impacts Model,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube| Department of Energy -StateOffshore Wind Economic ImpactsStudent

  7. Modeling the Global Trade and Environmental Impacts of Biofuel Policies |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLu anMicrogreen Polymers IncMississippi:MiyiImpacts (MESSAGE)

  8. A simplified model for estimating population-scale energy impacts of building envelope air-tightening and mechanical ventilation retrofits

    SciTech Connect (OSTI)

    Logue, J. M.; Turner, W. J.N.; Walker, I. S.; Singer, B. C.

    2015-01-01T23:59:59.000Z

    Changing the air exchange rate of a home (the sum of the infiltration and mechanical ventilation airflow rates) affects the annual thermal conditioning energy. Large-scale changes to air exchange rates of the housing stock can significantly alter the residential sector's energy consumption. However, the complexity of existing residential energy models is a barrier to the accurate quantification of the impact of policy changes on a state or national level. The Incremental Ventilation Energy (IVE) model developed in this study combines the output of simple air exchange models with a limited set of housing characteristics to estimate the associated change in energy demand of homes. The IVE model was designed specifically to enable modellers to use existing databases of housing characteristics to determine the impact of ventilation policy change on a population scale. The IVE model estimates of energy change when applied to US homes with limited parameterisation are shown to be comparable to the estimates of a well-validated, complex residential energy model.

  9. Optimal Execution Under Jump Models For Uncertain Price Impact

    E-Print Network [OSTI]

    2012-08-13T23:59:59.000Z

    May 12, 2011 ... Unfortunately current quantitative analysis of the execution cost ... Thus risk assessment under this model, particularly the tail risk, is likely to be ...

  10. Further development of the temperature model

    SciTech Connect (OSTI)

    Entner, P.M. [Alusuisse Lonza Services Ltd., Chippis (Switzerland); Guoemundsson, G.A. [Icelandic Aluminium Co. Ltd., Hafnarfjoerdur (Iceland)

    1996-10-01T23:59:59.000Z

    At the TMS Annual Meeting 1995 a model was presented to control the bath temperature of electrolytic pots. Regression methods calculate the parameters of model equations by using pot data of the past. With these equations optimal set values of the pot voltage and aluminum fluoride feeding rate are determined. A pot may be in the reactive or inactive pot state. In the reactive state it responds readily to changes like an increased AlF{sub 3} feeding rate by the corresponding reaction i.e. an increased AlF{sub 3} concentration. In the inactive state however the bath temperature or the aluminum fluoride concentration for instance may stay constant even when pot operation makes strong efforts to change the pot state. Especially interesting is the transition from one state to the other. To predict the moment of transition the temperature model uses indicators. These indicators are derived from the time behavior of pot parameters like metal height, bath height etc. With the knowledge of a coming transition the model adjusts the optimal pot parameters. A mechanism is presented to explain the reactive and inactive pot states and the transitions.

  11. Numerical modeling and experimental measurements of water spray impact and transport over a cylinder.

    SciTech Connect (OSTI)

    Avedisian, C. T. (Cornell University, Ithaca, NY); Presser, Cary (National Institute of Standard & Technology, Gaithersburg, MD); DesJardin, Paul Edward (University at Buffalo, New York, NY); Hewson, John C.; Yoon, Sam Sukgoo

    2005-03-01T23:59:59.000Z

    This study compares experimental measurements and numerical simulations of liquid droplets over heated (to a near surface temperature of 423 K) and unheated cylinders. The numerical model is based on an unsteady Reynolds-averaged Navier-Stokes (RANS) formulation using a stochastic separated flow (SSF) approach for the droplets that includes submodels for droplet dispersion, heat and mass transfer, and impact on a solid surface. The details of the droplet impact model are presented and the model is used to simulate water spray impingement on a cylinder. Computational results are compared with experimental measurements using phase Doppler interferometry (PDI).

  12. Modeling Climate Change Adaptation: Challenges, Recent Developments and Future Directions

    E-Print Network [OSTI]

    Wing, Ian Sue

    Modeling Climate Change Adaptation: Challenges, Recent Developments and Future Directions Karen of modeling practice in the field of integrated assessment of climate change and ways forward. Past efforts assessments of climate change have concentrated on developing baseline emissions scenarios and analyzing

  13. Modelling and control strategy development for fuel cell electric vehicles

    E-Print Network [OSTI]

    Peng, Huei

    Modelling and control strategy development for fuel cell electric vehicles Andreas Schell b , Huei applicable to the development of fuel cell electric vehicles (FCEVs) and hybrid electric vehicles (HEVs reserved. Keywords: Fuel cell electric vehicle; Hybrid vehicles; Modelling 1. Introduction Advanced

  14. Modeling of CO2 Reduction Impacts on Energy Prices with Modelica Philip Machanick1

    E-Print Network [OSTI]

    Machanick, Philip

    Modeling of CO2 Reduction Impacts on Energy Prices with Modelica Philip Machanick1 , Ariel Liebman1 and benefits, which may be better addressed by earlier interven- tion. In this paper we present a Modelica at the ap- propriate rate. In this paper we present a Modelica model which explores the trade

  15. Temperature-aware NBTI modeling and the impact of input vector control on performance degradation

    E-Print Network [OSTI]

    Wang, Yu

    Temperature-aware NBTI modeling and the impact of input vector control on performance degradation performance degradation in dig- ital circuits by affecting PMOS threshold voltage, is emerging as one devices and propose a novel temporal performance degradation model for digital cir- cuits considering

  16. Study of the impact of stochasticity on fish stock using a state space model

    E-Print Network [OSTI]

    Duchesne, Thierry

    Study of the impact of stochasticity on fish stock using a state space model Thierry Duchesne and fish stock CRM, Oct. 19, 2007 1 / 23 #12;Summary Outline 1 Introduction 2 Equilibrium conditions 3 Stochastic Surplus Production Model 4 Estimation of the fish stock from data 5 Example: Georges Bank Haddock

  17. A flow resistance model for assessing the impact of vegetation on flood routing mechanics

    E-Print Network [OSTI]

    Katul, Gabriel

    control in urban storm water runoff [Kirby et al., 2005], and linking tidal hydrodynamic forcing to flow and field studies. The proposed model asymptotically recovers the flow resistance formulation when the waterA flow resistance model for assessing the impact of vegetation on flood routing mechanics Gabriel G

  18. Energy consumption in cellular network: ON-OFF model and impact of mobility

    E-Print Network [OSTI]

    Energy consumption in cellular network: ON-OFF model and impact of mobility Thanh Tung Vu Telecom consumption in cellular network and we focus on the distribution of energy consumed by a base station. We first define the energy consumption model, in which the consumed energy is divided into two parts

  19. NREL: Technology Deployment - Project Development Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NRELCostBuildingModels and

  20. THE DEVELOPMENT MODEL ELECTRONIC COMMERCE OF REGIONAL AGRICULTURE

    E-Print Network [OSTI]

    Boyer, Edmond

    THE DEVELOPMENT MODEL ELECTRONIC COMMERCE OF REGIONAL AGRICULTURE Jun Kang* , Lecai Cai, Hongchan, Fax: +86-813-5505966, Email: kj_sky@126.com Abstract: With the developing of the agricultural information, it is inevitable trend of the development of agricultural electronic commercial affairs

  1. In situ vitrification model development and implementation plan

    SciTech Connect (OSTI)

    MacKinnon, R.J.; Murray, P.E.; Johnson, R.W.; Hagrman, D.L.; Slater, C.E.; Marwil, E.S.

    1990-08-01T23:59:59.000Z

    This document describes the In Situ Vitrification (ISV) Analysis Package being developed at the INEL to provide analytical support for (ISV) safety analysis and treatment performance predictions. Mathematical models and features which comprise this analysis package are presented and the proposed approach to model development and implementation is outlined. The objective of this document is two fold: to define preliminary design information and modeling objectives so that ISV modeling personnel can effectively modify existing models and formulate new models which are consistent with the objectives of the ISV treatability study and to provide sufficient technical information for internal and external reviewers to detect any shortcomings in model development and implementation plans. 27 refs., 17 figs., 3 tabs.

  2. Analyzing and Developing Role-Based Access Control Models

    E-Print Network [OSTI]

    Sheldon, Nathan D.

    Analyzing and Developing Role-Based Access Control Models by Liang Chen A thesis submitted-based access control (RBAC) has become today's dominant access control model, and many of its theoretical and practical aspects are well understood. However, certain aspects of more advanced RBAC models

  3. Experiments for foam model development and validation.

    SciTech Connect (OSTI)

    Bourdon, Christopher Jay; Cote, Raymond O.; Moffat, Harry K.; Grillet, Anne Mary; Mahoney, James F. (Honeywell Federal Manufacturing and Technologies, Kansas City Plant, Kansas City, MO); Russick, Edward Mark; Adolf, Douglas Brian; Rao, Rekha Ranjana; Thompson, Kyle Richard; Kraynik, Andrew Michael; Castaneda, Jaime N.; Brotherton, Christopher M.; Mondy, Lisa Ann; Gorby, Allen D.

    2008-09-01T23:59:59.000Z

    A series of experiments has been performed to allow observation of the foaming process and the collection of temperature, rise rate, and microstructural data. Microfocus video is used in conjunction with particle image velocimetry (PIV) to elucidate the boundary condition at the wall. Rheology, reaction kinetics and density measurements complement the flow visualization. X-ray computed tomography (CT) is used to examine the cured foams to determine density gradients. These data provide input to a continuum level finite element model of the blowing process.

  4. Puget Sound Dissolved Oxygen Modeling Study: Development of an Intermediate Scale Water Quality Model

    SciTech Connect (OSTI)

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

    2012-10-01T23:59:59.000Z

    The Salish Sea, including Puget Sound, is a large estuarine system bounded by over seven thousand miles of complex shorelines, consists of several subbasins and many large inlets with distinct properties of their own. Pacific Ocean water enters Puget Sound through the Strait of Juan de Fuca at depth over the Admiralty Inlet sill. Ocean water mixed with freshwater discharges from runoff, rivers, and wastewater outfalls exits Puget Sound through the brackish surface outflow layer. Nutrient pollution is considered one of the largest threats to Puget Sound. There is considerable interest in understanding the effect of nutrient loads on the water quality and ecological health of Puget Sound in particular and the Salish Sea as a whole. The Washington State Department of Ecology (Ecology) contracted with Pacific Northwest National Laboratory (PNNL) to develop a coupled hydrodynamic and water quality model. The water quality model simulates algae growth, dissolved oxygen, (DO) and nutrient dynamics in Puget Sound to inform potential Puget Sound-wide nutrient management strategies. Specifically, the project is expected to help determine 1) if current and potential future nitrogen loadings from point and non-point sources are significantly impairing water quality at a large scale and 2) what level of nutrient reductions are necessary to reduce or control human impacts to DO levels in the sensitive areas. The project did not include any additional data collection but instead relied on currently available information. This report describes model development effort conducted during the period 2009 to 2012 under a U.S. Environmental Protection Agency (EPA) cooperative agreement with PNNL, Ecology, and the University of Washington awarded under the National Estuary Program

  5. Cizelj & Riesch-Oppermann: Modelling the Early Development of... page 1 of 19 MODELING THE EARLY DEVELOPMENT OF

    E-Print Network [OSTI]

    Cizelj, Leon

    . Rather severe stress corrosion cracking has been the major cause of early retirement of PWR steamCizelj & Riesch-Oppermann: Modelling the Early Development of... page 1 of 19 MODELING THE EARLY to be still somewhat in the future. Especially the early phase of the development of cracks, also called

  6. Evaluating the Representation and Impact of Convective Processes in the NCAR’s Community Climate System Model

    SciTech Connect (OSTI)

    Xiaoqing Wu

    2008-07-31T23:59:59.000Z

    Convection and clouds affect atmospheric temperature, moisture and wind fields through the heat of condensation and evaporation and through redistributions of heat, moisture and momentum. Individual clouds have a spatial scale of less than 10 km, much smaller than the grid size of several hundred kilometers used in climate models. Therefore the effects of clouds must be approximated in terms of variables that the model can resolve. Deriving such formulations for convection and clouds has been a major challenge for the climate modeling community due to the lack of observations of cloud and microphysical properties. The objective of our DOE CCPP project is to evaluate and improve the representation of convection schemes developed by PIs in the NCAR (National Center for Atmospheric Research) Community Climate System Model (CCSM) and study its impact on global climate simulations.

  7. Seventh International Symposium on Technology and Mine Problem, NPS, Monterey, California, USA, 2-4 May, 2006 1 Abstract -The Navy's Impact Burial Model (IMPACT35)

    E-Print Network [OSTI]

    Chu, Peter C.

    -4 May, 2006 1 1 Abstract - The Navy's Impact Burial Model (IMPACT35) predicts the cylindrical mine.S. Navy from "blue" water, anti-Soviet focus, towards a concentration on the regional littoral threats of the world. With the increasing number of regional and asymmetric threats, the Navy must operate effectively

  8. Development of Enhanced Electric Arc Furnace Models for Transient Analysis Gilsoo Jang

    E-Print Network [OSTI]

    of the electric power quality of the interconnected system. Because of its severe impact on the power quality impact on the power system. Some researchers used the stochastic models to represent the operation assessing the impact of the EAF on power systems. New chaotic mod- els, such as mixed chaotic model

  9. Report: Evaluating the Impact of Newer Researcher Training & Development: Which Direction Forward? (Report of a Joint Seminar)

    E-Print Network [OSTI]

    Gough, Martin

    2009-01-01T23:59:59.000Z

    and Assessment”: The second session focused on impact in the form of participant learning and attainment (Kirkpatricks’ levels 2 & 3, following the Rugby Team Impact Framework). Robin Humphrey led with his presentation “Research Training, Researcher Development... degree where a student is learning by doing, rather than by listening and understanding, assessment is not the key indicator. - Does having to evidence progress constitute a better language than having to be assessed? – e.g. a real presentation to a real...

  10. Status of Safeguards and Separations Model Development at Plant and Molecular Levels

    SciTech Connect (OSTI)

    de Almeida, Valmor F [ORNL; Hay, Benjamin [ORNL; DePaoli, David W [ORNL

    2009-10-01T23:59:59.000Z

    A primary goal of the Safeguards and Separations IPSC effort is the development of process modeling tools that allow dynamic simulations of separations plant operations under various configurations and conditions, and integration of relevant safeguards analyses. A requirement of the effort is to develop codes on modern, expandable architectures, with flexibility to explore and evaluate a wide range of process options. During FY09, efforts at ORNL have been focused on two priority tasks toward achieving the IPSC goal: (1) a top-down exploration of architecture - Subtask 1: Explore framework for code development and integration for plant-level simulation; and (2) a bottom-up fundamental modeling effort - Subtask 2: Development of molecular-level agent design code. Subtask 1 is important because definition and development of architecture is a key issue for the overall effort, as selection of an overall approach and code/data requirements is a necessary first step in the organization, design and development of separations and safeguards codes that will be incorporated. The agent design effort of Subtask 2 is a molecular-level modeling effort that has a direct impact on a near-term issue of the Separations and Waste Forms Campaign. A current focus of experimental efforts is the development of robust agents and processes for separation of Am/Cm. Development of enhanced agent-design codes will greatly accelerate discovery and experimental testing.

  11. Fuel Efficient Diesel Particulate Filter (DPF) Modeling and Development

    SciTech Connect (OSTI)

    Stewart, Mark L.; Gallant, Thomas R.; Kim, Do Heui; Maupin, Gary D.; Zelenyuk, Alla

    2010-08-01T23:59:59.000Z

    The project described in this report seeks to promote effective diesel particulate filter technology with minimum fuel penalty by enhancing fundamental understanding of filtration mechanisms through targeted experiments and computer simulations. The overall backpressure of a filtration system depends upon complex interactions of particulate matter and ash with the microscopic pores in filter media. Better characterization of these phenomena is essential for exhaust system optimization. The acicular mullite (ACM) diesel particulate filter substrate is under continuing development by Dow Automotive. ACM is made up of long mullite crystals which intersect to form filter wall framework and protrude from the wall surface into the DPF channels. ACM filters have been demonstrated to effectively remove diesel exhaust particles while maintaining relatively low backpressure. Modeling approaches developed for more conventional ceramic filter materials, such as silicon carbide and cordierite, have been difficult to apply to ACM because of properties arising from its unique microstructure. Penetration of soot into the high-porosity region of projecting crystal structures leads to a somewhat extended depth filtration mode, but with less dramatic increases in pressure drop than are normally observed during depth filtration in cordierite or silicon carbide filters. Another consequence is greater contact between the soot and solid surfaces, which may enhance the action of some catalyst coatings in filter regeneration. The projecting crystals appear to provide a two-fold benefit for maintaining low backpressures during filter loading: they help prevent soot from being forced into the throats of pores in the lower porosity region of the filter wall, and they also tend to support the forming filter cake, resulting in lower average cake density and higher permeability. Other simulations suggest that soot deposits may also tend to form at the tips of projecting crystals due to the axial velocity component of exhaust moving down the filter inlet channel. Soot mass collected in this way would have a smaller impact on backpressure than soot forced into the flow restrictions deeper in the porous wall structure. This project has focused on the development of computational, analytical, and experimental techniques that are generally applicable to a wide variety of exhaust aftertreatment technologies. By helping to develop improved fundamental understanding pore-scale phenomena affecting filtration, soot oxidation, and NOX abatement, this cooperative research and development agreement (CRADA) has also assisted Dow Automotive in continuing development and commercialization of the ACM filter substrate. Over the course of this research project, ACM filters were successfully deployed on the Audi R10 TDI racecar which won the 24 Hours of LeMans endurance race in 2006, 2007, and 2008; and the 12 Hours of Sebring endurance race in 2006 and 2007. It would not have been possible for the R10 to compete in these traditionally gasoline-dominated events without reliable and effective exhaust particulate filtration. These successes demonstrated not only the performance of automotive diesel engines, but the efficacy of DPF technology as it was being deployed around the world to meet new emissions standards on consumer vehicles. During the course of this CRADA project, Dow Automotive commercialized their ACM DPF technology under the AERIFYTM DPF brand.

  12. Digestion Modelling in the Small Intestine : Impact of Dietary Fibre

    E-Print Network [OSTI]

    Taghipoor, Masoomeh; Georgelin, Christine; Licois, Jean-René; Lescoat, Philippe

    2012-01-01T23:59:59.000Z

    In this work, we continue the modelling of the digestion in the small intestine, started in a previous article, by investigating the effects of dietary fibre. We recall that this model aims at taking into account the three main phenomena of the digestion, namely the transit of the bolus, the degradation of feedstuffs and the absorption through the intestinal wall. In order to study the role of dietary fibre on digestion, we model their two principal physiochemical characteristics which interact with the function of the small intestine, i.e. viscosity and water holding capacity. This leads us to consider some features of digestion which have not been taken into account previously, in particular the interrelationship between the evolution of dry matter and water in the bolus. The numerical results are in agreement with the positive effect of insoluble dietary fibre on the velocity of bolus along the small intestine and on its degradation. These results highlight the negative effect of soluble dietary fibre on d...

  13. Economic Development Impacts of Colorado's First 1000 Megawatts of Wind Energy

    SciTech Connect (OSTI)

    Reategui, S.; Tegen, S.

    2008-08-01T23:59:59.000Z

    This report analyzes the economic impacts of the installation of 1000 MW of wind power in the state of Colorado.

  14. Environmental Impact and Sustainability Applied General Equilibrium Model

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazel Crest,EnergySerranopolisEnviroMission Ltd JumpFund Place:

  15. Development of a GIS Based Dust Dispersion Modeling System.

    SciTech Connect (OSTI)

    Rutz, Frederick C.; Hoopes, Bonnie L.; Crandall, Duard W.; Allwine, K Jerry

    2004-08-12T23:59:59.000Z

    With residential areas moving closer to military training sites, the effects upon the environment and neighboring civilians due to dust generated by training exercises has become a growing concern. Under a project supported by the Strategic Environmental Research and Development Program (SERDP) of the Department of Defense, a custom application named DUSTRAN is currently under development that integrates a system of EPA atmospheric dispersion models with the ArcGIS application environment in order to simulate the dust dispersion generated by a planned training maneuver. This integration between modeling system and GIS application allows for the use of real world geospatial data such as terrain, land-use, and domain size as input by the modeling system. Output generated by the modeling system, such as concentration and deposition plumes, can then be displayed upon accurate maps representing the training site. This paper discusses the development of this integration between modeling system and Arc GIS application.

  16. GEOCHEMICAL TESTING AND MODEL DEVELOPMENT - RESIDUAL TANK WASTE TEST PLAN

    SciTech Connect (OSTI)

    CANTRELL KJ; CONNELLY MP

    2010-03-09T23:59:59.000Z

    This Test Plan describes the testing and chemical analyses release rate studies on tank residual samples collected following the retrieval of waste from the tank. This work will provide the data required to develop a contaminant release model for the tank residuals from both sludge and salt cake single-shell tanks. The data are intended for use in the long-term performance assessment and conceptual model development.

  17. About the Impact of Model Risk on Capital Reserves: A Quantitative Analysis. Philip Bertram1, Philipp Sibbertsen and Gerhard Stahl

    E-Print Network [OSTI]

    Weber, Stefan

    About the Impact of Model Risk on Capital Reserves: A Quantitative Analysis. Philip Bertram1 the idea of model risk in the environment of internal model building. We define various types of model risk including estimation risk, model risk in distri- bution and model risk in functional form

  18. Developing Great Lakes Ice Model (GLIM) using CIOM (Coupled Ice-Ocean Model) in Lake Erie

    E-Print Network [OSTI]

    Developing Great Lakes Ice Model (GLIM) using CIOM (Coupled Ice- Ocean Model) in Lake Erie Primary of the ice-ocean models, assistance with development of project reports and scientific presentations will first start the implementation of the CIOM in Lake Erie, assemble satellite observations of ice cover

  19. Enabling online geospatial isotopic model development and analysis

    E-Print Network [OSTI]

    Zhang, Tonglin

    Enabling online geospatial isotopic model development and analysis Hyojeong Lee1 , Lan Zhao1 leverages the computation resources available on the TeraGrid to perform geospatial data operations and geostatistical model calculations. It builds on a variety of open source technologies for GIS, geospatial data

  20. Biological Development model for the Design of Robust Digital System

    E-Print Network [OSTI]

    Fernandez, Thomas

    Biological Development model for the Design of Robust Digital System Heng Liu Doctor of Philosophy and Keywords i Abstract This thesis presents a biologically-inspired developmental model for the design. The methods presented have been applied to produce a self-repairing two bit multiplier and an autonomous robot

  1. Using Dempster-Shafer Theory to model uncertainty in climate change and environmental impact

    E-Print Network [OSTI]

    Boyer, Edmond

    Using Dempster-Shafer Theory to model uncertainty in climate change and environmental impact]. The design wave overtopping in a context of changing climate cannot be deterministically predicted due defense structure due to (1) uncertain elevation of the mean water level and (2) uncertain level of storm

  2. The Impact of Mathematical Modeling on the Production of Special Purpose Cement

    E-Print Network [OSTI]

    Vuik, Kees

    The Impact of Mathematical Modeling on the Production of Special Purpose Cement Domenico Lahaye in the production industry? Our partnership with Almatis B.V., a special purpose cement manufacturer, resulted with experts in various engineering disciplines. Production of Special Purpose Cement Commonly used cement

  3. Estimating Water Quality Pollution Impacts Based on Economic Loss Models in Urbanization Process

    E-Print Network [OSTI]

    Yu, Qian

    . Research has targeted the assessment toward economic loss evaluation Grossman and Alan 1995; Ofiara 2001Estimating Water Quality Pollution Impacts Based on Economic Loss Models in Urbanization Process and spatial characteristics of different water quality parameters, and simulating economic loss of water

  4. Modeling to discern nitrogen fertilization impacts on carbon sequestration in a Pacific Northwest Douglas-fir

    E-Print Network [OSTI]

    Modeling to discern nitrogen fertilization impacts on carbon sequestration in a Pacific Northwest A R K J O H N S O N } *LREIS Institute of Geographic Sciences & Nature Resources Research, Chinese of Forestry, University of British Columbia, Vancouver, BC, Canada V6T 1Z4, zBiometeorology and Soil Physics

  5. The Impact of the Topology on Cascading Failures in a Power Grid Model

    E-Print Network [OSTI]

    Van Mieghem, Piet

    allocation according to Kirchoff Laws. Experimental verification on synthetic power systems showsThe Impact of the Topology on Cascading Failures in a Power Grid Model Yakup Koça,1 Martijn on the IEEE 118 bus power system to improve its robustness against cascading failures. 1. Introduction

  6. MODELING DROUGHT IMPACT ON H. BRASILIENSIS TRANSPIRATION, GROWTH AND LATEX PRODUCTION OF A

    E-Print Network [OSTI]

    Boyer, Edmond

    , growth and production for a pure rubber tree stand. However, in our conditions of much degraded soil and latex production are two distinct physiological phenomena in rubber trees (Rao et al., 19981 MODELING DROUGHT IMPACT ON H. BRASILIENSIS 2 TRANSPIRATION, GROWTH AND LATEX PRODUCTION

  7. MODELLING RADIATIVELY ACTIVE WATER-ICE CLOUDS: IMPACT ON THE THERMAL STRUCTURE AND WATER CYCLE.

    E-Print Network [OSTI]

    Madeleine, Jean-Baptiste

    MODELLING RADIATIVELY ACTIVE WATER-ICE CLOUDS: IMPACT ON THE THERMAL STRUCTURE AND WATER CYCLE. J. The essential role of water-ice clouds in shaping the thermal structure of the martian atmosphere has been long presumed [1] but neglected in GCMs because of the lack of observations and difficulty to predict

  8. Modeling impacts of geomagnetic field variations on middle atmospheric ozone responses to solar proton

    E-Print Network [OSTI]

    Wehrli, Bernhard

    events (SPEs) the flux of high-energy protons from the Sun is markedly increased. In order to investigateModeling impacts of geomagnetic field variations on middle atmospheric ozone responses to solar charged particles of solar and cosmic origin. Therefore variations of the geomagnetic field occurring

  9. A modeling study of benthic detritus flux's impacts on heterotrophic processes in Lake Michigan

    E-Print Network [OSTI]

    Chen, Changsheng

    A modeling study of benthic detritus flux's impacts on heterotrophic processes in Lake Michigan food web in Lake Michigan were examined using a three- dimensional (3-D) coupled biological to simulate the heterotrophic process in southern Lake Michigan. INDEX TERMS: 4815 Oceanography: Biological

  10. ORIGINAL PAPER "Modeling the impact of natural resource-based poverty

    E-Print Network [OSTI]

    Lehmann, Johannes

    ORIGINAL PAPER "Modeling the impact of natural resource-based poverty traps on food security and Dynamic Poverty Traps in East Africa. The Rockefeller Foundation is providing key financial support the interactions between natural resource-based poverty traps and food security for small- holder farms in highland

  11. Impact of realistic hourly emissions profiles on air pollutants concentrations modelled with CHIMERE

    E-Print Network [OSTI]

    Menut, Laurent

    Impact of realistic hourly emissions profiles on air pollutants concentrations modelled Keywords: Atmospheric composition European air quality Anthropogenic emissions a b s t r a c t Regional inputs data like anthropogenic surface emissions of NOx, VOCs and particulate matter. These emissions

  12. Evaluation of distributed hydrologic impacts of temperature-index and energy-based snow models

    E-Print Network [OSTI]

    Dozier, Jeff

    Accepted 13 March 2013 Available online 26 March 2013 Keywords: Snow Energy-balance Temperature intercepts snow- fall, alters the snow/atmosphere energy exchange and reduces wind speed. Dense canopies tendEvaluation of distributed hydrologic impacts of temperature-index and energy-based snow models

  13. Development of Models to Simulate Tracer Tests for Characterization of Enhanced Geothermal Systems

    SciTech Connect (OSTI)

    Williams, Mark D.; Reimus, Paul; Vermeul, Vincent R.; Rose, Peter; Dean, Cynthia A.; Watson, Tom B.; Newell, D.; Leecaster, Kevin; Brauser, Eric

    2013-05-01T23:59:59.000Z

    A recent report found that power and heat produced from enhanced (or engineered) geothermal systems (EGSs) could have a major impact on the U.S energy production capability while having a minimal impact on the environment. EGS resources differ from high-grade hydrothermal resources in that they lack sufficient temperature distribution, permeability/porosity, fluid saturation, or recharge of reservoir fluids. Therefore, quantitative characterization of temperature distributions and the surface area available for heat transfer in EGS is necessary for the design and commercial development of the geothermal energy of a potential EGS site. The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate this characterization. This project was initially focused on tracer development with the application of perfluorinated tracer (PFT) compounds, non-reactive tracers used in numerous applications from atmospheric transport to underground leak detection, to geothermal systems, and evaluation of encapsulated PFTs that would release tracers at targeted reservoir temperatures. After the 2011 midyear review and subsequent discussions with the U.S. Department of Energy Geothermal Technology Program (GTP), emphasis was shifted to interpretive tool development, testing, and validation. Subsurface modeling capabilities are an important component of this project for both the design of suitable tracers and the interpretation of data from in situ tracer tests, be they single- or multi-well tests. The purpose of this report is to describe the results of the tracer and model development for simulating and conducting tracer tests for characterizing EGS parameters.

  14. Mercury Speciation in Coal-Fired Power Plant Flue Gas-Experimental Studies and Model Development

    SciTech Connect (OSTI)

    Radisav Vidic; Joseph Flora; Eric Borguet

    2008-12-31T23:59:59.000Z

    The overall goal of the project was to obtain a fundamental understanding of the catalytic reactions that are promoted by solid surfaces present in coal combustion systems and develop a mathematical model that described key phenomena responsible for the fate of mercury in coal-combustion systems. This objective was achieved by carefully combining laboratory studies under realistic process conditions using simulated flue gas with mathematical modeling efforts. Laboratory-scale studies were performed to understand the fundamental aspects of chemical reactions between flue gas constituents and solid surfaces present in the fly ash and their impact on mercury speciation. Process models were developed to account for heterogeneous reactions because of the presence of fly ash as well as the deliberate addition of particles to promote Hg oxidation and adsorption. Quantum modeling was used to obtain estimates of the kinetics of heterogeneous reactions. Based on the initial findings of this study, additional work was performed to ascertain the potential of using inexpensive inorganic sorbents to control mercury emissions from coal-fired power plants without adverse impact on the salability fly ash, which is one of the major drawbacks of current control technologies based on activated carbon.

  15. Dose-Response Modeling for Life Cycle Impact Assessment: Findingsof the Portland Review Workshop

    SciTech Connect (OSTI)

    McKone, Thomas E.; Kyle, Amy D.; Jolliet, Olivier; Olsen, StigIrving; Hauschild, Michael

    2006-06-01T23:59:59.000Z

    The United Nations Environment Program (UNEP)/SETAC Life Cycle Initiative aims at putting life cycle thinking into practice and at improving the supporting tools for this process through better data and indicators. The initiative has thus launched three programs with associated working groups (see http://www.uneptie.org/pc/sustain/lcinitiative/). The Task Force on Toxic Impacts was established under the Life Cycle Impact Assessment (LCIA) program to establish recommended practice and guidance for use in human toxicity, ecosystem toxicity, and related categories with direct effects on human health and ecosystem health. The workshop consisted of three elements. (A) presentations summarizing (1) the goals of the LCIA Task Force (2) historical approaches to exposure and toxic impacts in LCIA (3) current alternative proposals for addressing human health impacts. Viewgraphs from two of these presentations are provided in Appendix B to this report. (B) Discussion among a panel of experts about the scientific defensibility of these historical and proposed approaches in the context of the goals of the LCIA Task Force 3 on toxicity impacts. (C) Development of the recommendations to the LCIA program and working group for optimum short- and long-term strategies for addressing human health impacts in LCA.

  16. Development of a natural gas systems analysis model (GSAM). Annual report, January 1994--January 1995

    SciTech Connect (OSTI)

    NONE

    1994-07-01T23:59:59.000Z

    The objective of GSAM development is to create a comprehensive, non-proprietary, microcomputer model of the North American natural gas system. GSAM explicitly evaluates the key components of the system, including the resource base, exploration and development practices, extraction technology performance and costs, project economics, transportation costs and restrictions, storage, and end-use. The primary focus is the detailed characterization of the resource base at the reservoir and sub-reservoir level. This disaggregation allows direct evaluation of alternative extraction technologies based on discretely estimated, individual well productivity, required investments, and associated operating costs. GSAM`s design allows users to evaluate complex interactions of current and alternative future technology and policy initiatives as they directly impact the gas market. Key activities completed during the past year include: conducted a comparative analysis of commercial reservoir databases; licensed and screened NRG Associates Significant Oil and Gas Fields of the US reservoir database; developed and tested reduced form reservoir model production type curves; fully developed database structures for use in GSAM and linkage to other systems; developed a methodology for the exploration module; collected and updated upstream capital and operating cost parameters; completed initial integration of downstream/demand models; presented research results at METC Contractor Review Meeting; conducted other briefings for METC managers, including initiation of the GSAM Environmental Module; and delivered draft topical reports on technology review, model review, and GSAM methodology.

  17. Development of a coupled thermo-hydro-mechanical model in discontinuous media for carbon sequestration

    SciTech Connect (OSTI)

    Fang, Yilin; Nguyen, Ba Nghiep; Carroll, Kenneth C.; Xu, Zhijie; Yabusaki, Steven B.; Scheibe, Timothy D.; Bonneville, Alain

    2013-09-12T23:59:59.000Z

    Geomechanical alteration of porous media is generally ignored for most shallow subsurface applications, whereas CO2 injection, migration, and trapping in deep saline aquifers will be controlled by coupled multifluid flow, energy transfer, and geomechanical processes. The accurate assessment of the risks associated with potential leakage of injected CO2 and the design of effective injection systems requires that we represent these coupled processes within numerical simulators. The objectives of this study were to develop a coupled thermal-hydro-mechanical model into a single software, and to examine the coupling of thermal, hydrological, and geomechanical processes for simulation of CO2 injection into the subsurface for carbon sequestration. A numerical model is developed to couple nonisothermal multiphase hydrological and geomechanical processes for prediction of multiple interconnected processes for carbon sequestration in deep saline aquifers. The geomechanics model was based on Rigid Body-Spring Model (RBSM), one of the discrete methods to model discontinuous rock system. Poisson’s effect that was often ignored by RBSM was considered in the model. The simulation of large-scale and long-term coupled processes in carbon capture and storage projects requires large memory and computational performance. Global Array Toolkit was used to build the model to permit the high performance simulations of the coupled processes. The model was used to simulate a case study with several scenarios to demonstrate the impacts of considering coupled processes and Poisson’s effect for the prediction of CO2 sequestration.

  18. Modeling the Impact of Product Portfolio on the Economic and Environmental Performance of Recycling Systems

    E-Print Network [OSTI]

    Dahmus, Jeffrey B.

    hrough the development of a general model of electronics recycling systems, the effect of product portfolio choices on economic and environmental system performance is explored. The general model encompasses the three main ...

  19. A two-layer turbulence model for simulating indoor airow Part I. Model development

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    ) data [Int. J. Heat Fluid Flow 18 (1997) 88]. # 2001 Published by Elsevier Science B.V. Keywords: Two convection model [Int. J. Heat Mass Transfer 41 (1998) 3161] with the aid of direct numerical simulation (DNS). On the other hand, indoor airŻow have the impact on building energy consumption. For example, it is well

  20. Development of a room air conditioner design model

    E-Print Network [OSTI]

    Penson, Steven Brad

    1988-01-01T23:59:59.000Z

    model was developed for this thesis by making major modifications to a heat pump model previously developed by Oak Ridge National Laboratory: (1) Addition of a subcooler, (2) Revision of the capillary tube model, (3) Addition of multi-grooved tubes... circuiting . 11 3. 1 Ideal refrigeration cycle on a pressure-enthalpy diagram 3. 2 3. 3 Tube-in-condensate subcooler. Tube-in-tubs subcooler, . 15 . 17 3. 4 Simplified diagram of a room air conditioner . 19 3. 5 Capillary flow factors. . 30 3. 6...

  1. 1 Copyright 2004 by ASME ANALYTICAL MODEL DEVELOPMENT AND MODEL REDUCTION FOR

    E-Print Network [OSTI]

    Yao, Bin

    1 Copyright © 2004 by ASME ANALYTICAL MODEL DEVELOPMENT AND MODEL REDUCTION FOR ELECTROMECHANICAL becomes largely a matter of computer code, not of complex layers of addition hardware. However, the BBW

  2. System Impacts from Interconnection of Distributed Resources: Current Status and Identification of Needs for Further Development

    SciTech Connect (OSTI)

    Basso, T. S.

    2009-01-01T23:59:59.000Z

    This report documents and evaluates system impacts from the interconnection of distributed resources to transmission and distribution systems, including a focus on renewable distributed resource technologies. The report also identifies system impact-resolution approaches and actions, including extensions of existing approaches. Lastly, the report documents the current challenges and examines what is needed to gain a clearer understanding of what to pursue to better avoid or address system impact issues.

  3. Modelling Bulk Density According to Structure Development: Toward an Indicator of Microstructure Development in Ferralsols.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Modelling Bulk Density According to Structure Development: Toward an Indicator of Microstructure the microaggregates with a small contribution of large pores resulting from root development and macrofaunal activity.25 g cm-3 among the 108 samples studied. Visual assessment of BESI showed that soil material

  4. Session: Non-fatality and habitat impacts on birds from wind energy development

    SciTech Connect (OSTI)

    Strickland, Dale

    2004-09-01T23:59:59.000Z

    This session at the Wind Energy and Birds/Bats workshop was consisted of one paper presentation followed by a discussion/question and answer period. The session focused on discussion of non-collision impacts of wind energy projects on birds, primarily impacts to habitat. The presentation included information about the impacts of habitat fragmentation, disturbance, and site avoidance from wind turbines, as well as from roads, transmission facilities, and other related construction at wind project sites. Whether birds habituate to the presence of turbines and the influence of regional factors were also addressed. The paper given by Dale Strickland was titled ''Overview of Non-Collision Related Impacts from Wind Projects''.

  5. Life of Sugar: Developing Lifecycle Methods to Evaluate the Energy and Environmental Impacts of Sugarcane Biofuels

    E-Print Network [OSTI]

    Gopal, Anand Raja

    2011-01-01T23:59:59.000Z

    Criteria for Sustainable Biofuel Production. RSB, pages 1–and Tyner, W. (2008b). Impact of Biofuel Production on WorldClifford, P. (2009). Assessing Biofuel Crop Invasiveness: A

  6. Modeling Urban Storm-Water Quality Treatment: Model Development and Application to a Surface Sand Filter

    E-Print Network [OSTI]

    Modeling Urban Storm-Water Quality Treatment: Model Development and Application to a Surface Sand management; Urban areas; Hydraulic models; Sand, filter; Parameters; Estimation; Water treatment. Author. Optimized model parameter values were calculated on a storm by storm basis. Thereafter, a gamma distribution

  7. Economic Development Impacts of Community Wind Projects: A Review and Empirical Evaluation; Preprint

    SciTech Connect (OSTI)

    Lantz, E.; Tegen, S.

    2009-04-01T23:59:59.000Z

    'Community wind' refers to a class of wind energy ownership structures. The extent of local ownership may range from a small minority share to full ownership by persons in the immediate area surrounding the wind project site. Potential project owners include local farmers, businesses, Native American tribes, universities, cooperatives, or any other local entity seeking to invest in wind energy. The opposite of community wind is an 'absentee' project, in which ownership is completely removed from the state and community surrounding the facility. Thus, there is little or no ongoing direct financial benefit to state and local populations aside from salaries for local repair technicians, local property tax payments, and land lease payments. In recent years, the community wind sector has been inhibited by manufacturers' preference for larger turbine orders. This often puts smaller community wind developers and projects at a competitive disadvantage. However, state policies specifically supporting community wind may become a more influential market factor as turbines are now more readily available given manufacturer ramp-ups and the slow-down in the industry that has accompanied the recent economic and financial crises. This report examines existing literature to provide an overview of economic impacts resulting from community wind projects, compares results, and explains variability.

  8. Abstract--This paper presents the impact of different types of load models in distribution network with distributed wind

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    as a major enabler of the smart grid for the integration of small and medium sized renewable energy based that modeling of loads has a significant impact on the voltage dynamics of the distribution systemAbstract--This paper presents the impact of different types of load models in distribution network

  9. Sustainable Development (20 credits) The carbon cycle, its impact on climate, and the need to change this by introducing

    E-Print Network [OSTI]

    Miall, Chris

    Sustainable Development (20 credits) The carbon cycle, its impact on climate, and the need of Government legislation on technology and the growth of sustainable businesses will be emphasised and building sustainable hydrogen industries. · Metals recycling. · Mass and energy balances on human

  10. The Economic Impact of the Natural Gas Industry and the Marcellus Shale Development in West Virginia in 2009

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    The Economic Impact of the Natural Gas Industry and the Marcellus Shale Development in West for this research was provided by the West Virginia Oil and Natural Gas Association (WVONGA). The opinions herein Natural gas is a colorless, odorless, and tasteless fuel that is used by households, manufacturers

  11. Chapter 9: Impacts of exurban development on water quality Authors: Kathleen A. Lohse and Adina M. Merenlender

    E-Print Network [OSTI]

    Merenlender, Adina

    water conditions. In particular, little is known about how different types of urban land use, especially land use impact--land-use change models can be important decision support tools to identify areas options, and to identify options that result in water and land conservation. Agricultural and urban land

  12. Development and Validation of WECC Variable Speed Wind Turbine Dynamic Models for Grid Integration Studies

    SciTech Connect (OSTI)

    Behnke, M.; Ellis, A.; Kazachkov, Y.; McCoy, T.; Muljadi, E.; Price, W.; Sanchez-Gasca, J.

    2007-09-01T23:59:59.000Z

    This paper describes reduced-order, simplified wind turbine models for analyzing the stability impact of large arrays of wind turbines with a single point of network interconnection.

  13. A fish model of renal regeneration and development

    E-Print Network [OSTI]

    Renate Reimschuessel

    The fish kidney provides a unique model for investigating renal injury, repair, and development. Like mammalian kidneys, fish kidneys have the remarkable ability to repair injured nephrons, designated renal regeneration. This response is marked by a recovery from acute renal failure by replacing the injured cells with new epithelial cells, restoring tubule integrity. In addition, fish have the ability to respond to renal injury by de novo nephron neogenesis. This response occurs in multiple fish species including goldfish, zebrafish, catfish, trout, tilapia, and the aglomerular toadfish. New nephrons develop in the weeks after the initial injury. This nephrogenic response can be induced in adult fish, providing a more abundant source of developing renal tissue compared with fetal mammalian kidneys. Investigating the roles played by different parts of the nephron during development and repair can be facilitated using fish models with differing renal anatomy, such as aglomerular fish. The fish nephron neogenesis model may also help to identify novel genes involved in nephrogenesis, information that could eventually be used to develop alternative renal replacement therapies. Key Words: development; fish; kidney; model; nephron; regeneration; repair

  14. Energy standards and model codes development, adoption, implementation, and enforcement

    SciTech Connect (OSTI)

    Conover, D.R.

    1994-08-01T23:59:59.000Z

    This report provides an overview of the energy standards and model codes process for the voluntary sector within the United States. The report was prepared by Pacific Northwest Laboratory (PNL) for the Building Energy Standards Program and is intended to be used as a primer or reference on this process. Building standards and model codes that address energy have been developed by organizations in the voluntary sector since the early 1970s. These standards and model codes provide minimum energy-efficient design and construction requirements for new buildings and, in some instances, existing buildings. The first step in the process is developing new or revising existing standards or codes. There are two overall differences between standards and codes. Energy standards are developed by a consensus process and are revised as needed. Model codes are revised on a regular annual cycle through a public hearing process. In addition to these overall differences, the specific steps in developing/revising energy standards differ from model codes. These energy standards or model codes are then available for adoption by states and local governments. Typically, energy standards are adopted by or adopted into model codes. Model codes are in turn adopted by states through either legislation or regulation. Enforcement is essential to the implementation of energy standards and model codes. Low-rise residential construction is generally evaluated for compliance at the local level, whereas state agencies tend to be more involved with other types of buildings. Low-rise residential buildings also may be more easily evaluated for compliance because the governing requirements tend to be less complex than for commercial buildings.

  15. A Simulation Model for the Waterfall Software Development Life Cycle

    E-Print Network [OSTI]

    Bassil, Youssef

    2012-01-01T23:59:59.000Z

    Software development life cycle or SDLC for short is a methodology for designing, building, and maintaining information and industrial systems. So far, there exist many SDLC models, one of which is the Waterfall model which comprises five phases to be completed sequentially in order to develop a software solution. However, SDLC of software systems has always encountered problems and limitations that resulted in significant budget overruns, late or suspended deliveries, and dissatisfied clients. The major reason for these deficiencies is that project directors are not wisely assigning the required number of workers and resources on the various activities of the SDLC. Consequently, some SDLC phases with insufficient resources may be delayed; while, others with excess resources may be idled, leading to a bottleneck between the arrival and delivery of projects and to a failure in delivering an operational product on time and within budget. This paper proposes a simulation model for the Waterfall development proce...

  16. Analysis of the environmental impact of China based on STIRPAT model

    SciTech Connect (OSTI)

    Lin Shoufu, E-mail: linshf2003@126.co [School of Economics, FuJian Normal University, Fuzhou City, 350007, Fujian Province (China) and School of Management, University of Science and Technology of China, Hefei City, 230026, Anhui Province (China) and Curtin University Sustainability Policy Institute, Curtin University of Technology, GPO BoxU1987, Perth, WA 6845 (Australia); Zhao Dingtao, E-mail: box@ustc.edu.c [School of Management, University of Science and Technology of China, Hefei City, 230026, Anhui Province (China); Marinova, Dora, E-mail: D.Marinova@curtin.edu.a [Curtin University Sustainability Policy Institute, Curtin University of Technology, GPO BoxU1987, Perth, WA 6845 (Australia)

    2009-11-15T23:59:59.000Z

    Assuming that energy consumption is the main source of GHG emissions in China, this paper analyses the effect of population, urbanisation level, GDP per capita, industrialisation level and energy intensity on the country's environmental impact using the STIRPAT model with data for 1978-2006. The analysis shows that population has the largest potential effect on environmental impact, followed by urbanisation level, industrialisation level, GDP per capita and energy intensity. Hence, China's One Child Policy, which restrains rapid population growth, has been an effective way of reducing the country's environmental impact. However, due to the difference in growth rates, GDP per capita had a higher effect on the environmental impact, contributing to 38% of its increase (while population's contribution was at 32%). The rapid decrease in energy intensity was the main factor restraining the increase in China's environmental impact but recently it has also been rising. Against this background, the future of the country looks bleak unless a change in human behaviour towards more ecologically sensitive economic choices occurs.

  17. Development of a natural gas systems analysis model (GSAM). Annual report, July 1996--July 1997

    SciTech Connect (OSTI)

    NONE

    1997-12-31T23:59:59.000Z

    The objective of GSAM development is to create a comprehensive, non-proprietary, microcomputer model of the North American natural gas system. GSAM explicitly evaluates the key components of the system, including the resource base, exploration and development practices, extraction technology performance and costs, project economics, transportation costs and restrictions, storage, and end-use. The primary focus is the detailed characterization of the resource base at the reservoir and subreservoir level. This disaggregation allows direct evaluation of alternative extraction technologies based on discretely estimated, individual well productivity, required investments, and associated operating costs. GSAM`s design allows users to evaluate complex interactions of current and alternative future technology and policy initiatives as they directly impact the gas market. GSAM development has been ongoing for the past five years. Key activities completed during the past year are described.

  18. Development and Application of a Strength and Damage Model for Rock under Dynamic Loading

    SciTech Connect (OSTI)

    Antoun, T H; Lomov, I N; Glenn, L A

    2001-03-12T23:59:59.000Z

    Simulating the behavior of geologic materials under impact loading conditions requires the use of a constitutive model that includes the effects of bulking, yielding, damage, porous compaction and loading rate on the material response. This paper describes the development, implementation and calibration of a thermodynamically consistent constitutive model that incorporates these features. The paper also describes a computational study in which the model was used to perform numerical simulations of PILE DRIVER, a deeply-buried underground nuclear explosion detonated in granite at the Nevada Test Site. Particle velocity histories, peak velocity and peak displacement as a function of slant range obtained from the code simulations compare favorably with PILE DRIVER data. The simulated attenuation of peak velocity and peak displacement also agrees with the results from several other spherical wave experiments in granite.

  19. A Modeling Study of the Potential Water Quality Impacts from In-Stream Tidal Energy Extraction

    SciTech Connect (OSTI)

    Wang, Taiping; Yang, Zhaoqing; Copping, Andrea E.

    2013-11-09T23:59:59.000Z

    To assess the effects of tidal energy extraction on water quality in a simplified estuarine system, which consists of a tidal bay connected to the coastal ocean through a narrow channel where energy is extracted using in-stream tidal turbines, a three-dimensional coastal ocean model with built-in tidal turbine and water quality modules was applied. The effects of tidal energy extraction on water quality were examined for two energy extraction scenarios as compared with the baseline condition. It was found, in general, that the environmental impacts associated with energy extraction depend highly on the amount of power extracted from the system. Model results indicate that, as a result of energy extraction from the channel, the competition between decreased flushing rates in the bay and increased vertical mixing in the channel directly affects water quality responses in the bay. The decreased flushing rates tend to cause a stronger but negative impact on water quality. On the other hand, the increase of vertical mixing could lead to higher bottom dissolved oxygen at times. As the first modeling effort directly aimed at examining the impacts of tidal energy extraction on estuarine water quality, this study demonstrates that numerical models can serve as a very useful tool for this purpose. However, more careful efforts are warranted to address system-specific environmental issues in real-world, complex estuarine systems.

  20. Global environmental effects of impact-generated aerosols: Results from a general circulation model: Revision 1

    SciTech Connect (OSTI)

    Covey, C.; Ghan, S.J.; Walton, J.J.; Weissman, P.R.

    1989-06-01T23:59:59.000Z

    Interception of sunlight by the high altitude worldwide dust cloud generated by impact of a large asteroid or comet would lead to substantial land surface cooling, according to our three-dimensional atmospheric general circulation model (GCM). This result is qualitatively similar to conclusions drawn from an earlier study that employed a one-dimensional atmospheric model, but in the GCM simulation the heat capacity of the oceans substantially mitigates land surface cooling, an effect that one-dimensional models cannot quantify. On the other hand, the low heat capacity of the GCM's land surface allows temperatures to drop more rapidly in the initial stage of cooling than in the one-dimensional model study. These two differences between three-dimensional and one-dimensional model simulations were noted previously in studies of ''nuclear winter; '' GCM-simulated climatic changes in the Alvarez-inspired scenario of ''asteroid/comet winter,'' however, are more severe than in ''nuclear winter'' because the assumed aerosol amount is large enough to intercept all sunlight falling on earth. Impacts of smaller objects -- which would occur much more frequently than the Cretaceous/Tertiary event deduced by Alvarez and coworkers -- could also lead to dramatic, though less severe, climatic changes, according to our GCM. Our conclusion is that it is difficult to imagine an asteroid or comet impact leading to anything approaching complete global freezing, but quite reasonable to assume that impacts at the Alvarez level, or even smaller, dramatically alter the climate in at least a ''patchy'' sense. 30 refs., 4 figs., 1 tab.

  1. SpaceWire model development technology for satellite architecture.

    SciTech Connect (OSTI)

    Eldridge, John M.; Leemaster, Jacob Edward; Van Leeuwen, Brian P.

    2011-09-01T23:59:59.000Z

    Packet switched data communications networks that use distributed processing architectures have the potential to simplify the design and development of new, increasingly more sophisticated satellite payloads. In addition, the use of reconfigurable logic may reduce the amount of redundant hardware required in space-based applications without sacrificing reliability. These concepts were studied using software modeling and simulation, and the results are presented in this report. Models of the commercially available, packet switched data interconnect SpaceWire protocol were developed and used to create network simulations of data networks containing reconfigurable logic with traffic flows for timing system distribution.

  2. Infrastructure development assistance modeling for nuclear power plant

    SciTech Connect (OSTI)

    Park, J. H.; Hwang, K.; Park, K. M.; Kim, S. W.; Lee, S. M. [Korea Hydro and Nuclear Power Co., LTD, 23, 106 gil, Yeongdong-daero, Gangnam-gu, 153-791 (Korea, Republic of)

    2012-07-01T23:59:59.000Z

    The purpose of this paper is to develop a model, a general frame to be utilized in assisting newcomer countries to start a nuclear power program. A nuclear power plant project involves technical complexity and high level of investment with long duration. Considering newcomers are mostly developing countries that lack the national infrastructure, key infrastructure issues may constitute the principal constraints to the development of a nuclear power program. In this regard, it is important to provide guidance and support to set up an appropriate infrastructure when we help them with the first launch of nuclear power plant project. To date, as a sole nuclear power generation company, KHNP has been invited many times to mentor or assist newcomer countries for their successful start of a nuclear power program since Republic of Korea is an exemplary case of a developing country which began nuclear power program from scratch and became a major world nuclear energy country in a short period of time. Through hosting events organized to aid newcomer countries' initiation of nuclear power projects, difficulties have been recognized. Each event had different contents according to circumstances because they were held as an unstructured and one-off thing. By developing a general model, we can give more adequate and effective aid in an efficient way. In this paper, we created a model to identify necessary infrastructures at the right stage, which was mainly based on a case of Korea. Taking into account the assistance we received from foreign companies and our own efforts for technological self-reliance, we have developed a general time table and specified activities required to do at each stage. From a donor's perspective, we explored various ways to help nuclear infrastructure development including technical support programs, training courses, and participating in IAEA technical cooperation programs on a regular basis. If we further develop the model, the next task would be to make the model more sophisticated as a 'semi-tailored model' so that it can be applied to a certain country reflecting its unique conditions. In accordance with its degree of established infrastructure, we can adjust or modify the model. Despite lots of benefits of using this model, there remain limitations such as time and budget constraints. These problems, however, can be addressed by cooperating with international organization such as the IAEA and other companies that share the same goal of helping newcomer countries introduce nuclear power. (authors)

  3. Results from Development of Model Specifications for Multifamily Energy Retrofits

    SciTech Connect (OSTI)

    Brozyna, K.

    2012-08-01T23:59:59.000Z

    Specifications, modeled after CSI MasterFormat, provide the trade contractors and builders with requirements and recommendations on specific building materials, components and industry practices that comply with the expectations and intent of the requirements within the various funding programs associated with a project. The goal is to create a greater level of consistency in execution of energy efficiency retrofits measures across the multiple regions a developer may work. IBACOS and Mercy Housing developed sample model specifications based on a common building construction type that Mercy Housing encounters.

  4. National resources for development -- a suggested decision model

    E-Print Network [OSTI]

    Henry, Sam Sherrill

    1973-01-01T23:59:59.000Z

    December 1973 Ma]or Sub]ect i Political Science NAT1ONAL RESOURCES FOR DEVELOPMENT ? A SUGGESTED DECISION MODEL A Thesis SAM SHERRILL HENRY, JR, Approved as to style and content by& ha rman of Comm ttee Gi uDP 'uu P Head of Depar ment Mem'ber Me... er December 19'73 ABSTRACT National Resources for Development -- A Suggested Decision Model (December 1973) Sam Sherrill Henry, Jr. , B. A. , Texas ARM University Directed bye Dr, Robert A. Bernstein This study is designed to analyze selected...

  5. Modeling Climate-Water Impacts on Electricity Sector Capacity Expansion: Preprint

    SciTech Connect (OSTI)

    Cohen, S. M.; Macknick, J.; Averyt, K.; Meldrum, J.

    2014-05-01T23:59:59.000Z

    Climate change has the potential to exacerbate water availability concerns for thermal power plant cooling, which is responsible for 41% of U.S. water withdrawals. This analysis describes an initial link between climate, water, and electricity systems using the National Renewable Energy Laboratory (NREL) Regional Energy Deployment System (ReEDS) electricity system capacity expansion model. Average surface water projections from Coupled Model Intercomparison Project 3 (CMIP3) data are applied to surface water rights available to new generating capacity in ReEDS, and electric sector growth is compared with and without climate-influenced water rights. The mean climate projection has only a small impact on national or regional capacity growth and water use because most regions have sufficient unappropriated or previously retired water rights to offset climate impacts. Climate impacts are notable in southwestern states that purchase fewer water rights and obtain a greater share from wastewater and other higher-cost water resources. The electric sector climate impacts demonstrated herein establish a methodology to be later exercised with more extreme climate scenarios and a more rigorous representation of legal and physical water availability.

  6. Further Developments on the Geothermal System Scoping Model: Preprint

    SciTech Connect (OSTI)

    Antkowiak, M.; Sargent, R.; Geiger, J. W.

    2010-07-01T23:59:59.000Z

    This paper discusses further developments and refinements for the uses of the Geothermal System Scoping Model in an effort to provide a means for performing a variety of trade-off analyses of surface and subsurface parameters, sensitivity analyses, and other systems engineering studies in order to better inform R&D direction and investment for the development of geothermal power into a major contributor to the U.S. energy supply.

  7. Development of an Ingestion Pathway Model for AXAIRQ

    SciTech Connect (OSTI)

    Simpkins, A.A.

    1999-01-13T23:59:59.000Z

    AXAIRQ is a dose mode code used for prospective accident assessment at the Savannah River Site and is primarily used to show regulatory compliance. For completeness of pathway analysis, an ingestion model, AXINGST, has been developed for use with, and incorporation in, AXAIRQ. Currently available ingestion models were referenced as a basis for AXINGST. AXINGST calculates a conservative ingestion dose following an atmospheric release of radionuclides and includes site specific variables where applicable.

  8. The development of a cognitive process-oriented correlation model 

    E-Print Network [OSTI]

    Kneuven, Richard James

    1988-01-01T23:59:59.000Z

    Chair of Advisory Committee: Dr. Patricia A. Alexander This study was undertaken to discover what underlying cognitive processes could provide a basis for a cognitive process-oriented correlation model and to examine how this cognitive information... examined interpretations of information-processing as articulated by selected cognitive theorists, assorted approaches to interdisciplinary instruction, as well as various approaches to curriculum design. Ultimately, a curricular model was developed...

  9. Developing Generic Dynamic Models for the 2030 Eastern Interconnection Grid

    SciTech Connect (OSTI)

    Kou, Gefei [ORNL; Hadley, Stanton W [ORNL; Markham, Penn N [ORNL; Liu, Yilu [ORNL

    2013-12-01T23:59:59.000Z

    The Eastern Interconnection Planning Collaborative (EIPC) has built three major power flow cases for the 2030 Eastern Interconnection (EI) based on various levels of energy/environmental policy conditions, technology advances, and load growth. Using the power flow cases, this report documents the process of developing the generic 2030 dynamic models using typical dynamic parameters. The constructed model was validated indirectly using the synchronized phasor measurements by removing the wind generation temporarily.

  10. Final Report on Evaluating the Representation and Impact of Convective Processes in the NCAR Community Climate System Model

    SciTech Connect (OSTI)

    X. Wu, G. J. Zhang

    2008-04-23T23:59:59.000Z

    Convection and clouds affect atmospheric temperature, moisture and wind fields through the heat of condensation and evaporation and through redistributions of heat, moisture and momentum. Individual clouds have a spatial scale of less than 10 km, much smaller than the grid size of several hundred kilometers used in climate models. Therefore the effects of clouds must be approximated in terms of variables that the model can resolve. Deriving such formulations for convection and clouds has been a major challenge for the climate modeling community due to the lack of observations of cloud and microphysical properties. The objective of our DOE CCPP project is to evaluate and improve the representation of convection schemes developed by PIs in the NCAR (National Center for Atmospheric Research) Community Climate System Model (CCSM) and study its impact on global climate simulations. • The project resulted in nine peer-reviewed publications and numerous scientific presentations that directly address the CCPP’s scientific objective of improving climate models. • We developed a package of improved convection parameterization that includes improved closure, trigger condition for convection, and comprehensive treatment of convective momentum transport. • We implemented the new convection parameterization package into several versions of the NCAR models (both coupled and uncoupled). This has led to 1) Improved simulation of seasonal migration of ITCZ; 2) Improved shortwave cloud radiative forcing response to El Nińo in CAM3; 3) Improved MJO simulation in both uncoupled and coupled model; and 4) Improved simulation of ENSO in coupled model. • Using the dynamic core of CCM3, we isolated the dynamic effects of convective momentum transport. • We implemented mosaic treatment of subgrid-scale cloud-radiation interaction in CCM3.

  11. USEtox - The UNEP-SETAC toxicity model: recommended characterisation factors for human toxicity and freshwater ecotoxicity in Life Cycle Impact Assessment

    SciTech Connect (OSTI)

    Rosenbaum, Ralph K.; Bachmann, Till M.; Swirsky Gold, Lois; Huijbregts, Mark A.J.; Jolliet, Olivier; Juraske, Ronnie; Koehler, Annette; Larsen, Henrik F.; MacLeod, Matthew; Margni, Manuele; McKone, Thomas E.; Payet, Jerome; Schuhmacher, Marta; van de Meent, Dik; Hauschild, Michael Z.

    2008-02-03T23:59:59.000Z

    Background, Aim and Scope. In 2005 a comprehensive comparison of LCIA toxicity characterisation models was initiated by the UNEP-SETAC Life Cycle Initiative, directly involving the model developers of CalTOX, IMPACT 2002, USES-LCA, BETR, EDIP, WATSON, and EcoSense. In this paper we describe this model-comparison process and its results--in particular the scientific consensus model developed by the model developers. The main objectives of this effort were (i) to identify specific sources of differences between the models' results and structure, (ii) to detect the indispensable model components, and (iii) to build a scientific consensus model from them, representing recommended practice. Methods. A chemical test set of 45 organics covering a wide range of property combinations was selected for this purpose. All models used this set. In three workshops, the model comparison participants identified key fate, exposure and effect issues via comparison of the final characterisation factors and selected intermediate outputs for fate, human exposure and toxic effects for the test set applied to all models. Results. Through this process, we were able to reduce inter-model variation from an initial range of up to 13 orders of magnitude down to no more than 2 orders of magnitude for any substance. This led to the development of USEtox, a scientific consensus model that contains only the most influential model elements. These were, for example, process formulations accounting for intermittent rain, defining a closed or open system environment, or nesting an urban box in a continental box. Discussion. The precision of the new characterisation factors (CFs) is within a factor of 100-1000 for human health and 10-100 for freshwater ecotoxicity of all other models compared to 12 orders of magnitude variation between the CFs of each model respectively. The achieved reduction of inter-model variability by up to 11 orders of magnitude is a significant improvement.Conclusions. USEtox provides a parsimonious and transparent tool for human health and ecosystem CF estimates. Based on a referenced database, it has now been used to calculate CFs for several thousand substances and forms the basis of the recommendations from UNEP-SETAC's Life Cycle Initiative regarding characterization of toxic impacts in Life Cycle Assessment. Recommendations and Perspectives. We provide both recommended and interim (not recommended and to be used with caution) characterisation factors for human health and freshwater ecotoxicity impacts. After a process of consensus building among stakeholders on a broad scale as well as several improvements regarding a wider and easier applicability of the model, USEtox will become available to practitioners for the calculation of further CFs.

  12. Modelling PV Deployment: A Tool Developed at CEEP to

    E-Print Network [OSTI]

    Delaware, University of

    ............................................. 6 Figure 3: PV Planner© Simulation of PV Impact on Building Electric Load Profile

  13. Natural Gas Discovery and Development Impacts on Rio Vista and Its Community

    E-Print Network [OSTI]

    Gbedema, Tometi Koku

    2006-01-01T23:59:59.000Z

    local residents while natural gas energy resource developmentEnergy resource development creates new opportunities for locallocal communities are undermined with existing energy development

  14. Development and Testing of a Groundwater Management Model for the Faultless Underground Nuclear Test, Central Nevada Test Area

    SciTech Connect (OSTI)

    Douglas P. Boyle; Gregg Lamorey; Scott Bassett; Greg Pohll; Jenny Chapman

    2006-01-25T23:59:59.000Z

    This document describes the development and application of a user-friendly and efficient groundwater management model of the Central Nevada Test Area (CNTA) and surrounding areas that will allow the U.S. Department of Energy and state personnel to evaluate the impact of future proposed scenarios. The management model consists of a simple hydrologic model within an interactive groundwater management framework. This framework is based on an object user interface that was developed by the U.S. Geological Survey and has been used by the Desert Research Institute researchers and others to couple disparate environmental resource models, manage the necessary temporal and spatial data, and evaluate model results for management decision making. This framework was modified and applied to the CNTA and surrounding Hot Creek Valley. The utility of the management model was demonstrated through the application of hypothetical future scenarios including mineral mining, regional expansion of agriculture, geothermal energy production, and export of water to large urban areas outside the region. While the results from some of the scenarios indicated potential impacts to the region near CNTA and others did not, together they demonstrate the usefulness of the management tool for managers who need to evaluate the impact proposed changes in groundwater use in or near CNTA may have on radionuclide migration.

  15. The impact of manufacturing offshore on technology development paths in the automotive and optoelectronics industries

    E-Print Network [OSTI]

    Fuchs, Erica R. H. (Erica Renee H.), 1977-

    2006-01-01T23:59:59.000Z

    This dissertation presents a two-case study of the impact of manufacturing offshore on the technology trajectory of the firm and the industry. It looks in particular at the automotive and optoelectronics industries. The ...

  16. Ex Post Analysis of Economic Impacts from Wind Power Development in U.S. Counties

    E-Print Network [OSTI]

    Brown, Jason P.

    2014-01-01T23:59:59.000Z

    use requirements of modern wind power plants in the United2002. Economic impacts of wind power in Kittitas County:Office, 2004. Renewable energy: Wind power’s contribution to

  17. Virginia Tech Comprehensive Power-based Fuel Consumption Model: Model Development and Testing

    E-Print Network [OSTI]

    Rakha, Hesham A.

    The transportation sector consumes approximately 30% of the total energy in the United States, which is mostlyVirginia Tech Comprehensive Power-based Fuel Consumption Model: Model Development and Testing, Moran, Saerens, and Van den Bulck 2 ABSTRACT Existing fuel consumption and emission models suffer from

  18. The impact of the Self-Determined Learning Model of Instruction on student self-determination

    E-Print Network [OSTI]

    Wehmeyer, Michael L.; Shogren, Karrie A.; Palmer, Susan B.; Williams-Diehm, Kendra; Little, Todd D.; Boulton, Aaron Jacob

    2012-01-01T23:59:59.000Z

    multifaceted construct and interventions that achieve the best outcomes are multicomponent interventions. The SDLMI (Wehmeyer et al., 2000) is a model of teaching (i.e., intended for teachers as end users to guide and direct instruction) that supports teachers... the impact of the SDLMI (Wehmeyer et al., 2000) on self-determination. Project personnel contacted school districts, and districts that agreed to participate (« < 20) identi- fied high school campuses {n < 39) to participate. Next, the primary district...

  19. Development of a simplified model for cooling and dehumidifying coils

    E-Print Network [OSTI]

    Maldonado, Eliezer

    1997-01-01T23:59:59.000Z

    buildings at Texas excellent in both cases, predicting the thermal resistance of the coils and the return water temperature with an average deviation of 3.5% and 1.2 'F, respectively. Finally, the model is used to develop algorithms to simulate the two most...

  20. Draft Report Development of Model Curriculum in Renewable Energy

    E-Print Network [OSTI]

    Banerjee, Rangan

    Draft Report On Development of Model Curriculum in Renewable Energy Energy Systems Engineering, Indian Institute of Technology Bombay Powai, Mumbai ­ 400 076 August 2003 #12;Draft Renewable Energy energy systems for the future, it is necessary to incorporate renewable energy in the traditional

  1. LG Solid Oxide Fuel Cell (SOFC) Model Development

    SciTech Connect (OSTI)

    Haberman, Ben; Martinez-Baca, Carlos; Rush, Greg

    2013-03-31T23:59:59.000Z

    This report presents a summary of the work performed by LG Fuel Cell Systems Inc. during the project LG Solid Oxide Fuel Cell (SOFC) Model Development (DOE Award Number: DE-FE0000773) which commenced on October 1, 2009 and was completed on March 31, 2013. The aim of this project is for LG Fuel Cell Systems Inc. (formerly known as Rolls-Royce Fuel Cell Systems (US) Inc.) (?LGFCS?) to develop a multi-physics solid oxide fuel cell (SOFC) computer code (MPC) for performance calculations of the LGFCS fuel cell structure to support fuel cell product design and development. A summary of the initial stages of the project is provided which describes the MPC requirements that were developed and the selection of a candidate code, STAR-CCM+ (CD-adapco). This is followed by a detailed description of the subsequent work program including code enhancement and model verification and validation activities. Details of the code enhancements that were implemented to facilitate MPC SOFC simulations are provided along with a description of the models that were built using the MPC and validated against experimental data. The modeling work described in this report represents a level of calculation detail that has not been previously available within LGFCS.

  2. Developing Performance Models from Non-intrusive Monitoring Traces

    E-Print Network [OSTI]

    Murphy, John

    Developing Performance Models from Non- intrusive Monitoring Traces Daniela Mania, John Murphy transactions within the system at run-time using non-intrusive monitoring. Our belief is this methodology obtained by non-intrusive monitoring of an EJB-based e-commerce application. Moreover, the methodology

  3. Development of Metric for Measuring the Impact of RD&D Funding on GTO's Geothermal Exploration Goals (Presentation)

    SciTech Connect (OSTI)

    Jenne, S.; Young, K. R.; Thorsteinsson, H.

    2013-04-01T23:59:59.000Z

    The Department of Energy's Geothermal Technologies Office (GTO) provides RD&D funding for geothermal exploration technologies with the goal of lowering the risks and costs of geothermal development and exploration. In 2012, NREL was tasked with developing a metric to measure the impacts of this RD&D funding on the cost and time required for exploration activities. The development of this metric included collecting cost and time data for exploration techniques, creating a baseline suite of exploration techniques to which future exploration and cost and time improvements could be compared, and developing an online tool for graphically showing potential project impacts (all available at http://en.openei.org/wiki/Gateway:Geothermal). The conference paper describes the methodology used to define the baseline exploration suite of techniques (baseline), as well as the approach that was used to create the cost and time data set that populates the baseline. The resulting product, an online tool for measuring impact, and the aggregated cost and time data are available on the Open EI website for public access (http://en.openei.org).

  4. LNG Safety Research: FEM3A Model Development

    SciTech Connect (OSTI)

    Liese Dallbauman

    2004-06-30T23:59:59.000Z

    During this reporting period, kickoff and planning meetings were held. Subcontracted experimental and modeling tasks were defined. Efforts to address the numerical stability problems that hamper FEM3A's applicability to low wind speed, stable atmospheric conditions were initiated. A detailed review of FEM3A code and its execution, required for development of an accessible user interface, was also begun. A one-day workshop on LNG safety models has been scheduled for September 2004. The goals of this project are to develop a national focal point for LNG safety research and technical dissemination and to develop the FEM3A dispersion model for application to general scenarios involving dispersion problems with obstacle and terrain features of realistic complexity. During this reporting period, the objectives and scope of the project and its constituent tasks were discussed at a project kickoff meeting in Morgantown. Details of the subcontracted experimental and modeling tasks were further defined at a separate meeting at the University of Arkansas. Researchers at the university have begun to modify the turbulence closure model used in FEM3A to insure numerical stability during simulation of low-wind-speed, stable atmospheric conditions. The university's wind tunnel is being prepared for upcoming experimental studies. GTI has begun a detailed review of the FEM3A code and its execution that will provide guidance during development of an accessible user interface. Plans were made for a one day workshop on LNG safety models that will be held at the end of September and will provide an introduction to currently available and pending software tools.

  5. Predicted impacts of future water level decline on monitoring wells using a ground-water model of the Hanford Site

    SciTech Connect (OSTI)

    Wurstner, S.K.; Freshley, M.D.

    1994-12-01T23:59:59.000Z

    A ground-water flow model was used to predict water level decline in selected wells in the operating areas (100, 200, 300, and 400 Areas) and the 600 Area. To predict future water levels, the unconfined aquifer system was stimulated with the two-dimensional version of a ground-water model of the Hanford Site, which is based on the Coupled Fluid, Energy, and Solute Transport (CFEST) Code in conjunction with the Geographic Information Systems (GIS) software package. The model was developed using the assumption that artificial recharge to the unconfined aquifer system from Site operations was much greater than any natural recharge from precipitation or from the basalt aquifers below. However, artificial recharge is presently decreasing and projected to decrease even more in the future. Wells currently used for monitoring at the Hanford Site are beginning to go dry or are difficult to sample, and as the water table declines over the next 5 to 10 years, a larger number of wells is expected to be impacted. The water levels predicted by the ground-water model were compared with monitoring well completion intervals to determine which wells will become dry in the future. Predictions of wells that will go dry within the next 5 years have less uncertainty than predictions for wells that will become dry within 5 to 10 years. Each prediction is an estimate based on assumed future Hanford Site operating conditions and model assumptions.

  6. Current Status and Potential Impacts Regarding the Proposed Development of a Rail Line to the Yucca Mountain Nuclear Waste Repository

    SciTech Connect (OSTI)

    Lanthrum, G. [U.S. Department of Energy, Office of Civilian Radioactive Waste Management, Washington, DC (United States); Gunnerson, J. [Booz Allen Hamilton, Las Vegas, NV (United States)

    2008-07-01T23:59:59.000Z

    This paper provides a description of the current status regarding the proposed development of a rail line to the Yucca Mountain Nuclear Waste Repository in Nye County, Southern Nevada, which includes potential impacts analyzed during the National Environmental Policy Act (NEPA) process, and the subsequent creation of an Environmental Impact Statement (EIS) for the rail line. Potential impacts are addressed within the context of impacts to natural and human environmental resources found within the geographic area of the proposed federal project. Potential impacts to these resources have been fully analyzed in the Rail Alignment Draft EIS (DEIS). This paper includes a summary of the potential impacts analyzed in the DEIS. Examples of potential impacts include land use conflicts, air quality, water use, and impacts to biological and cultural resources, among others. In conclusion: Based on its obligations under the NWPA and its decision to select the mostly rail scenario for the transportation of spent nuclear fuel and high-level radioactive waste, DOE needs to ship these materials by rail in Nevada to a repository at Yucca Mountain. DOE prepared the Rail Alignment EIS to provide the background, data, information, and analyses to help decision makers and the public understand the potential environmental impacts that could result from constructing and operating a railroad for shipment of spent nuclear fuel, high-level radioactive waste, and other materials from an existing rail line in Nevada to a repository at Yucca Mountain. This railroad would consist of a rail line, railroad operations support facilities, and other related infrastructure. DOE will use the Rail Alignment EIS to decide whether to construct and operate the proposed railroad, and if so, to: - Select a rail alignment (Caliente rail alignment or Mina rail alignment) in which to construct the railroad; - Select the common segments and alternative segments within either a Caliente rail alignment or a Mina rail alignment. The Department would use the selected common segments and alternative segments to identify the public lands to be included in right-of-way applications; - Decide where to construct proposed railroad operations support facilities; - Decide whether to restrict use of the rail line to DOE trains, or whether to allow commercial shippers to operate over the rail line; and - Determine what mitigation measures to implement. (authors)

  7. Climate Change Impacts for Conterminous USA: An Integrated Assessment Part 2. Models and Validation

    SciTech Connect (OSTI)

    Thomson, Allison M.; Rosenberg, Norman J.; Izaurralde, R Cesar C.; Brown, Robert A.

    2005-03-01T23:59:59.000Z

    As CO{sub 2} and other greenhouse gases accumulate in the atmosphere and contribute to rising global temperatures, it is important to examine how a changing climate may affect natural and managed ecosystems. In this series of papers, we study the impacts of climate change on agriculture, water resources and natural ecosystems in the conterminous United States using a suite of climate change predictions from General Circulation Models (GCMs) as described in Part 1. Here we describe the agriculture model EPIC and the HUMUS water model and validate them with historical crop yields and streamflow data. We compare EPIC simulated grain and forage crop yields with historical crop yields from the US Department of Agriculture and find an acceptable level of agreement for this study. The validation of HUMUS simulated streamflow with estimates of natural streamflow from the US Geological Survey shows that the model is able to reproduce significant relationships and capture major trends.

  8. Methods for Developing Emissions Scenarios for Integrated Assessment Models

    SciTech Connect (OSTI)

    Prinn, Ronald [MIT; Webster, Mort [MIT

    2007-08-20T23:59:59.000Z

    The overall objective of this research was to contribute data and methods to support the future development of new emissions scenarios for integrated assessment of climate change. Specifically, this research had two main objectives: 1. Use historical data on economic growth and energy efficiency changes, and develop probability density functions (PDFs) for the appropriate parameters for two or three commonly used integrated assessment models. 2. Using the parameter distributions developed through the first task and previous work, we will develop methods of designing multi-gas emission scenarios that usefully span the joint uncertainty space in a small number of scenarios. Results on the autonomous energy efficiency improvement (AEEI) parameter are summarized, an uncertainty analysis of elasticities of substitution is described, and the probabilistic emissions scenario approach is presented.

  9. Wind stress measurements from the QuikSCAT-SeaWinds scatterometer tandem mission and the impact on an ocean model

    E-Print Network [OSTI]

    Talley, Lynne D.

    Wind stress measurements from the QuikSCAT-SeaWinds scatterometer tandem mission and the impact by the QuikSCAT-SeaWinds scatterometer tandem mission (April­October 2003) and their impact on ocean model simulation. The diurnal variability captured by twice-daily scatterometer wind from the tandem mission

  10. A Model of Global Learning: How Students Change Through International High-Impact Experiences 

    E-Print Network [OSTI]

    Redwine, Tobin Dean

    2014-12-12T23:59:59.000Z

    is warranted. The purpose of this study was to develop a model to explain the viewpoints of student changes by students who participate in a study abroad experience. To meet that purpose, three objectives were utilized. First, a qualitative phenomenology...

  11. Session: Why avian impacts are a concern in wind energy development

    SciTech Connect (OSTI)

    Winegrad, Gerald

    2004-09-01T23:59:59.000Z

    This lunchtime session at the Wind Energy and Birds/Bats workshop consisted of one presentation followed by a discussion/question and answer period. The session provided a more detailed overview of the environmental community's perspective on wind power's impacts on birds. The presentation described how wind projects impact birds, detailing the species distribution of collisions at various sites around the US and discussing problems such as avoidance, habitat disturbance, and cumulative effects on populations. The presentation, ''Wind Turbines and Birds'', was given by Gerald Winegrad from the American Bird Conservancy.

  12. LNG SAFETY RESEARCH: FEM3A MODEL DEVELOPMENT

    SciTech Connect (OSTI)

    Jerry Havens; Iraj A. Salehi

    2005-02-21T23:59:59.000Z

    This quarterly report for DE-FG26-04NT42030 covers a period from October 1, 2004 to December 31, 2004. On December 9, 2004 a meeting was held in Morgantown to rescope the LNG safety modeling project such that the work would complement the DOE's efforts relative to the development of the intended LNG-Fluent model. It was noted and discussed at the December 9th meeting that the fundamental research being performed on surface to cloud heat transfer and low wind speed issues will be relevant to the development of the DOE LNG/Fluent Model. In general, it was decided that all research to be performed from December 9th through the remainder of the contract is to be focused on the development of the DOE LNG/Fluent model. In addition, all GTI activities for dissemination and transfer of FEM3A will cease and dissemination activities will focus on the new DOE LNG/Fluent model. The proposed new scope of work is presented in section 4 of this report. The work reported in the present document relates to the original scope of work which was in effect during the reporting period. The future work will be re-scoped to meet the requirements of the new scope of work. During the report period work was underway to address numerical problems present during simulation of low-wind-speed, stable, atmospheric conditions with FEM3A. Steps 1 and 2 in the plan outlined in the first Quarterly report are complete and steps 3 and 4 are in progress. During this quarter, the University of Arkansas has been investigating the effect upon numerical stability of the heat transfer model used to predict the surface-to-cloud heat transfer, which can be important for LNG vapor dispersion. Previously, no consideration has been given to ground cooling as a result of heat transfer to the colder gas cloud in FEM3A.

  13. Continued development of modeling tools and theory for RF heating

    SciTech Connect (OSTI)

    NONE

    1998-12-01T23:59:59.000Z

    Mission Research Corporation (MRC) is pleased to present the Department of Energy (DOE) with its renewal proposal to the Continued Development of Modeling Tools and Theory for RF Heating program. The objective of the program is to continue and extend the earlier work done by the proposed principal investigator in the field of modeling (Radio Frequency) RF heating experiments in the large tokamak fusion experiments, particularly the Tokamak Fusion Test Reactor (TFTR) device located at Princeton Plasma Physics Laboratory (PPPL). An integral part of this work is the investigation and, in some cases, resolution of theoretical issues which pertain to accurate modeling. MRC is nearing the successful completion of the specified tasks of the Continued Development of Modeling Tools and Theory for RF Heating project. The following tasks are either completed or nearing completion. (1) Anisotropic temperature and rotation upgrades; (2) Modeling for relativistic ECRH; (3) Further documentation of SHOOT and SPRUCE. As a result of the progress achieved under this project, MRC has been urged to continue this effort. Specifically, during the performance of this project two topics were identified by PPPL personnel as new applications of the existing RF modeling tools. These two topics concern (a) future fast-wave current drive experiments on the large tokamaks including TFTR and (c) the interpretation of existing and future RF probe data from TFTR. To address each of these topics requires some modification or enhancement of the existing modeling tools, and the first topic requires resolution of certain theoretical issues to produce self-consistent results. This work falls within the scope of the original project and is more suited to the project`s renewal than to the initiation of a new project.

  14. Development of a fourth generation predictive capability maturity model.

    SciTech Connect (OSTI)

    Hills, Richard Guy; Witkowski, Walter R.; Urbina, Angel; Rider, William J.; Trucano, Timothy Guy

    2013-09-01T23:59:59.000Z

    The Predictive Capability Maturity Model (PCMM) is an expert elicitation tool designed to characterize and communicate completeness of the approaches used for computational model definition, verification, validation, and uncertainty quantification associated for an intended application. The primary application of this tool at Sandia National Laboratories (SNL) has been for physics-based computational simulations in support of nuclear weapons applications. The two main goals of a PCMM evaluation are 1) the communication of computational simulation capability, accurately and transparently, and 2) the development of input for effective planning. As a result of the increasing importance of computational simulation to SNL's mission, the PCMM has evolved through multiple generations with the goal to provide more clarity, rigor, and completeness in its application. This report describes the approach used to develop the fourth generation of the PCMM.

  15. THE IMPACT OF CITY-LEVEL PERMITTING PROCESSES ON RESIDENTIAL PV INSTALLATION PRICES AND DEVELOPMENT TIMES

    E-Print Network [OSTI]

    Dong, Changgui

    2014-01-01T23:59:59.000Z

    The installed price of photovoltaic (PV) systems hasprice and development time of residential photovoltaic (PV)

  16. Modelling the fate of nonylphenolic compounds in1 the Seine River -part 2: assessing the impact of2

    E-Print Network [OSTI]

    Boyer, Edmond

    with the modelling of the global change10 influence on endocrine disruptor concentrations in surface water. Among1 Modelling the fate of nonylphenolic compounds in1 the Seine River - part 2: assessing the impact.09.0299 10 This study aims at modelling the daily concentrations of nonylphenolic compounds such as 4

  17. Improved Modeling Tools Development for High Penetration Solar

    SciTech Connect (OSTI)

    Washom, Byron

    2014-12-11T23:59:59.000Z

    One of the significant objectives of the High Penetration solar research is to help the DOE understand, anticipate, and minimize grid operation impacts as more solar resources are added to the electric power system. For Task 2.2, an effective, reliable approach to predicting solar energy availability for energy generation forecasts using the University of California, San Diego (UCSD) Sky Imager technology has been demonstrated. Granular cloud and ramp forecasts for the next 5 to 20 minutes over an area of 10 square miles were developed. Sky images taken every 30 seconds are processed to determine cloud locations and cloud motion vectors yielding future cloud shadow locations respective to distributed generation or utility solar power plants in the area. The performance of the method depends on cloud characteristics. On days with more advective cloud conditions, the developed method outperforms persistence forecasts by up to 30% (based on mean absolute error). On days with dynamic conditions, the method performs worse than persistence. Sky Imagers hold promise for ramp forecasting and ramp mitigation in conjunction with inverter controls and energy storage. The pre-commercial Sky Imager solar forecasting algorithm was documented with licensing information and was a Sunshot website highlight

  18. Developing A Laser Shockwave Model For Characterizing Diffusion Bonded Interfaces

    SciTech Connect (OSTI)

    James A. Smith; Jeffrey M. Lacy; Barry H. Rabin

    2014-07-01T23:59:59.000Z

    12. Other advances in QNDE and related topics: Preferred Session Laser-ultrasonics Developing A Laser Shockwave Model For Characterizing Diffusion Bonded Interfaces 41st Annual Review of Progress in Quantitative Nondestructive Evaluation Conference QNDE Conference July 20-25, 2014 Boise Centre 850 West Front Street Boise, Idaho 83702 James A. Smith, Jeffrey M. Lacy, Barry H. Rabin, Idaho National Laboratory, Idaho Falls, ID ABSTRACT: The US National Nuclear Security Agency has a Global Threat Reduction Initiative (GTRI) which is assigned with reducing the worldwide use of high-enriched uranium (HEU). A salient component of that initiative is the conversion of research reactors from HEU to low enriched uranium (LEU) fuels. An innovative fuel is being developed to replace HEU. The new LEU fuel is based on a monolithic fuel made from a U-Mo alloy foil encapsulated in Al-6061 cladding. In order to complete the fuel qualification process, the laser shock technique is being developed to characterize the clad-clad and fuel-clad interface strengths in fresh and irradiated fuel plates. The Laser Shockwave Technique (LST) is being investigated to characterize interface strength in fuel plates. LST is a non-contact method that uses lasers for the generation and detection of large amplitude acoustic waves to characterize interfaces in nuclear fuel plates. However the deposition of laser energy into the containment layer on specimen’s surface is intractably complex. The shock wave energy is inferred from the velocity on the backside and the depth of the impression left on the surface from the high pressure plasma pulse created by the shock laser. To help quantify the stresses and strengths at the interface, a finite element model is being developed and validated by comparing numerical and experimental results for back face velocities and front face depressions with experimental results. This paper will report on initial efforts to develop a finite element model for laser shock.

  19. ForCent model development and testing using the Enriched Background Isotope Study experiment

    SciTech Connect (OSTI)

    Parton, W.J.; Hanson, P. J.; Swanston, C.; Torn, M.; Trumbore, S. E.; Riley, W.; Kelly, R.

    2010-10-01T23:59:59.000Z

    The ForCent forest ecosystem model was developed by making major revisions to the DayCent model including: (1) adding a humus organic pool, (2) incorporating a detailed root growth model, and (3) including plant phenological growth patterns. Observed plant production and soil respiration data from 1993 to 2000 were used to demonstrate that the ForCent model could accurately simulate ecosystem carbon dynamics for the Oak Ridge National Laboratory deciduous forest. A comparison of ForCent versus observed soil pool {sup 14}C signature ({Delta} {sup 14}C) data from the Enriched Background Isotope Study {sup 14}C experiment (1999-2006) shows that the model correctly simulates the temporal dynamics of the {sup 14}C label as it moved from the surface litter and roots into the mineral soil organic matter pools. ForCent model validation was performed by comparing the observed Enriched Background Isotope Study experimental data with simulated live and dead root biomass {Delta} {sup 14}C data, and with soil respiration {Delta} {sup 14}C (mineral soil, humus layer, leaf litter layer, and total soil respiration) data. Results show that the model correctly simulates the impact of the Enriched Background Isotope Study {sup 14}C experimental treatments on soil respiration {Delta} {sup 14}C values for the different soil organic matter pools. Model results suggest that a two-pool root growth model correctly represents root carbon dynamics and inputs to the soil. The model fitting process and sensitivity analysis exposed uncertainty in our estimates of the fraction of mineral soil in the slow and passive pools, dissolved organic carbon flux out of the litter layer into the mineral soil, and mixing of the humus layer into the mineral soil layer.

  20. Modeling of a Foamed Emulsion Bioreactor: I. Model Development and Experimental Validation

    E-Print Network [OSTI]

    ARTICLE Modeling of a Foamed Emulsion Bioreactor: I. Model Development and Experimental Validation, a new type of bioreactor for air pollution control referred to as the foamed emulsion bior- eactor (FEBR Introduction Biofilters and biotrickling filters are the most widely used bioreactors for treating low levels

  1. Development of a system model for advanced small modular reactors.

    SciTech Connect (OSTI)

    Lewis, Tom Goslee,; Holschuh, Thomas Vernon,

    2014-01-01T23:59:59.000Z

    This report describes a system model that can be used to analyze three advance small modular reactor (SMR) designs through their lifetime. Neutronics of these reactor designs were evaluated using Monte Carlo N-Particle eXtended (MCNPX/6). The system models were developed in Matlab and Simulink. A major thrust of this research was the initial scoping analysis of Sandia's concept of a long-life fast reactor (LLFR). The inherent characteristic of this conceptual design is to minimize the change in reactivity over the lifetime of the reactor. This allows the reactor to operate substantially longer at full power than traditional light water reactors (LWRs) or other SMR designs (e.g. high temperature gas reactor (HTGR)). The system model has subroutines for lifetime reactor feedback and operation calculations, thermal hydraulic effects, load demand changes and a simplified SCO2 Brayton cycle for power conversion.

  2. Sandia National Laboratories: support wind-energy development

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

    support wind-energy development Sandia Develops Tool to Evaluate Wind-TurbineRadar Impacts On December 3, 2014, in Computational Modeling & Simulation, Energy, News, News &...

  3. Impacts of WRF Physics and Measurement Uncertainty on California Wintertime Model Wet Bias

    SciTech Connect (OSTI)

    Chin, H S; Caldwell, P M; Bader, D C

    2009-07-22T23:59:59.000Z

    The Weather and Research Forecast (WRF) model version 3.0.1 is used to explore California wintertime model wet bias. In this study, two wintertime storms are selected from each of four major types of large-scale conditions; Pineapple Express, El Nino, La Nina, and synoptic cyclones. We test the impacts of several model configurations on precipitation bias through comparison with three sets of gridded surface observations; one from the National Oceanographic and Atmospheric Administration, and two variations from the University of Washington (without and with long-term trend adjustment; UW1 and UW2, respectively). To simplify validation, California is divided into 4 regions (Coast, Central Valley, Mountains, and Southern California). Simulations are driven by North American Regional Reanalysis data to minimize large-scale forcing error. Control simulations are conducted with 12-km grid spacing (low resolution) but additional experiments are performed at 2-km (high) resolution to evaluate the robustness of microphysics and cumulus parameterizations to resolution changes. We find that the choice of validation dataset has a significant impact on the model wet bias, and the forecast skill of model precipitation depends strongly on geographic location and storm type. Simulations with right physics options agree better with UW1 observations. In 12-km resolution simulations, the Lin microphysics and the Kain-Fritsch cumulus scheme have better forecast skill in the coastal region while Goddard, Thompson, and Morrison microphysics, and the Grell-Devenyi cumulus scheme perform better in the rest of California. The effect of planetary boundary layer, soil-layer, and radiation physics on model precipitation is weaker than that of microphysics and cumulus processes for short- to medium-range low-resolution simulations. Comparison of 2-km and 12-km resolution runs suggests a need for improvement of cumulus schemes, and supports the use of microphysics schemes in coarser-grid applications.

  4. LNG Safety Research: FEM3A Model Development

    SciTech Connect (OSTI)

    None

    2006-09-30T23:59:59.000Z

    The initial scope of work for this project included: 1) Improving the FEM3A advanced turbulence closure module, 2) Adaptation of FEM3A for more general applications, and 3) Verification of dispersion over rough surfaces, with and without obstacle using the advanced turbulence closure module. These work elements were to be performed by Chemical Hazards Research Center (CHRC), Department of Chemical Engineering, University of Arkansas as a subcontractor to Gas Technology Institute (GTI). The tasks for GTI included establishment of the scientific support base for standardization of the FEM3A model, project management, technology transfer, and project administration. Later in the course of the project, the scope of work was modified by the National Energy Technology Laboratories (NETL) to remove the emphasis on FEM3A model and instead, develop data in support of NETL’s FLUENT modeling. With this change, GTI was also instructed to cease activities relative to FEM3A model. GTI’s technical activities through this project included the initial verification of FEM3A model, provision of technical inputs to CHRC researchers regarding the structure of the final product, and participation in technical discussion sessions with CHRC and NETL technical staff. GTI also began the development of a Windows-based front end for the model but the work was stopped due to the change in scope of work. In the meantime, GTI organized a workshop on LNG safety in Houston, Texas. The workshop was very successful and 75 people from various industries participated. All technical objectives were met satisfactorily by Dr. Jerry Havens and Dr. Tom Spicer of CHRC and results are presented in a stand-alone report included as Appendix A to this report.

  5. LNG Safety Research: FEM3A Model Development

    SciTech Connect (OSTI)

    Iraj A. Salehi; Jerry Havens; Tom Spicer

    2006-09-30T23:59:59.000Z

    The initial scope of work for this project included: (1) Improving the FEM3A advanced turbulence closure module, (2) Adaptation of FEM3A for more general applications, and (3) Verification of dispersion over rough surfaces, with and without obstacle using the advanced turbulence closure module. These work elements were to be performed by Chemical Hazards Research Center (CHRC), Department of Chemical Engineering, University of Arkansas as a subcontractor to Gas Technology Institute (GTI). The tasks for GTI included establishment of the scientific support base for standardization of the FEM3A model, project management, technology transfer, and project administration. Later in the course of the project, the scope of work was modified by the National Energy Technology Laboratories (NETL) to remove the emphasis on FEM3A model and instead, develop data in support of NETL's FLUENT modeling. With this change, GTI was also instructed to cease activities relative to FEM3A model. GTI's technical activities through this project included the initial verification of FEM3A model, provision of technical inputs to CHRC researchers regarding the structure of the final product, and participation in technical discussion sessions with CHRC and NETL technical staff. GTI also began the development of a Windows-based front end for the model but the work was stopped due to the change in scope of work. In the meantime, GTI organized a workshop on LNG safety in Houston, Texas. The workshop was very successful and 75 people from various industries participated. All technical objectives were met satisfactorily by Dr. Jerry Havens and Dr. Tom Spicer of CHRC and results are presented in a stand-alone report included as Appendix A to this report.

  6. NEAMS FPL M2 Milestone Report: Development of a UO? Grain Size Model using Multicale Modeling and Simulation

    SciTech Connect (OSTI)

    Michael R Tonks; Yongfeng Zhang; Xianming Bai

    2014-06-01T23:59:59.000Z

    This report summarizes development work funded by the Nuclear Energy Advanced Modeling Simulation program's Fuels Product Line (FPL) to develop a mechanistic model for the average grain size in UO? fuel. The model is developed using a multiscale modeling and simulation approach involving atomistic simulations, as well as mesoscale simulations using INL's MARMOT code.

  7. Impact of PK/PD, Disease Models and Personalized Medicine to Influence FDA Decisions

    E-Print Network [OSTI]

    Powell, Robert

    2006-10-26T23:59:59.000Z

    Impact of PK/PD, Disease Models and Personalized Medicine to Influence FDA Decisions Bob Powell, Pharm.D. Pharmacometrics Offices of Clinical Pharmacology & Translational Sciences Center for Drug Evaluation & Research FDA robert... 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 T r o u g h C o n c e n t r a t i o n i n u g / m L Cmin in Phase 2 and Phase 3 at Different Doses 500/200 Study 52 750/200 Study 52 500/200 Study 12/48 TPV Cmin, IC50, T20 co-administration significantly influence...

  8. Modeling the impact of sea-spray on particle concentrations in a coastal city

    SciTech Connect (OSTI)

    Pryor, S C; Barthelmie, R J; Schoof, J T; Binkowski, F S; Monache, L D; Stull, R B

    2006-04-19T23:59:59.000Z

    An atmospheric chemistry-transport model is used to assess the impacts of sea-spray chemistry on the particle composition in and downwind of a coastal city--Vancouver, British Columbia. Reactions in/on sea-spray affect the entire particle ensemble and particularly the size distribution of particle nitrate. Urban air quality, and particularly airborne particles, is a major concern in terms of human health impacts. Sea-spray is known to be a major component of the particle ensemble at coastal sites yet relatively few air quality models include the interaction of gases with sea-spray and the fate of the particles produced. Sea-spray is not an inert addition to the particle ensemble because heterogeneous chemistry in/on sea-spray droplets changes the droplets composition and the particle size distribution, which impacts deposition and the ion balance in different particle size fractions. It is shown that the ISOPART model is capable of simulating gas and particle concentrations in the coastal metropolis of Vancouver and the surrounding valley. It is also demonstrated that to accurately simulate ambient concentrations of particles and reactive/soluble gases in a coastal valley it is absolutely critical to include heterogeneous chemistry in/on sea-spray. Partitioning of total particle-NO{sub 3}{sup -} between sea-spray and NH{sub 4}NO{sub 3} is highly sensitive to the amount of sea-spray present, and hence the initial vertical profile, sea-spray source functions [48] and the wind speed. When a fixed wind speed is used to initialize the sea-spray vertical profiles, as expected, the sea-spray concentration decays with distance inland, but the particle-NO{sub 3}{sup -} concentration decays more slowly because it is also a function of the uptake rate for HNO{sub 3}. The simulation results imply model analyses of air quality in coastal cities conducted without inclusion of sea-spray interactions may yield highly misleading results in terms of emission sensitivities of the PM size distribution. The sensitivity of the model results to the initial sea spray profile further suggests there would be great benefit in better definition of the vertical profile of size resolved sea-spray for use in such model studies.

  9. Development of Ensemble Neural Network Convection Parameterizations for Climate Models

    SciTech Connect (OSTI)

    Fox-Rabinovitz, M. S.; Krasnopolsky, V. M.

    2012-05-02T23:59:59.000Z

    The novel neural network (NN) approach has been formulated and used for development of a NN ensemble stochastic convection parametrization for climate models. This fast parametrization is built based on data from Cloud Resolving Model (CRM) simulations initialized with and forced by TOGA-COARE data. The SAM (System for Atmospheric Modeling), developed by D. Randall, M. Khairoutdinov, and their collaborators, has been used for CRM simulations. The observational data are also used for validation of model simulations. The SAM-simulated data have been averaged and projected onto the GCM space of atmospheric states to implicitly define a stochastic convection parametrization. This parametrization is emulated using an ensemble of NNs. An ensemble of NNs with different NN parameters has been trained and tested. The inherent uncertainty of the stochastic convection parametrization derived in such a way is estimated. Due to these inherent uncertainties, NN ensemble is used to constitute a stochastic NN convection parametrization. The developed NN convection parametrization have been validated in a diagnostic CAM (CAM-NN) run vs. the control CAM run. Actually, CAM inputs have been used, at every time step of the control/original CAM integration, for parallel calculations of the NN convection parametrization (CAM-NN) to produce its outputs as a diagnostic byproduct. Total precipitation (P) and cloudiness (CLD) time series, diurnal cycles, and P and CLD distributions for the large Tropical Pacific Ocean for the parallel CAM-NN and CAM runs show similarity and consistency with the NCEP reanalysis. The P and CLD distributions for the tropical area for the parallel runs have been analyzed first for the TOGA-COARE boreal winter season (November 1992 through February 1993) and then for the winter seasons of the follow-up parallel decadal simulations. The obtained results are encouraging and practically meaningful. They show the validity of the NN approach. This constitutes an important practical conclusion of the study: the obtained results on NN ensembles as a stochastic physics parametrization show a realistic possibility of development of NN convection parametrization for climate (and NWP) models based on learning cloud physics from CRM/SAM simulated data.

  10. Development of an analytical model for organic-fluid fouling

    SciTech Connect (OSTI)

    Panchal, C.B.; Watkinson, A.P.

    1994-10-01T23:59:59.000Z

    The research goal of this project is to determine ways to effectively mitigate fouling in organic fluids: hydrocarbons and derived fluids. The fouling research focuses on the development of methodology for determining threshold conditions for fouling. Initially, fluid containing chemicals known to produce foulant is analyzed; subsequently, fouling of industrial fluids is investigated. The fouling model developed for determining the effects of physical parameters is the subject of this report. The fouling model is developed on the premise that the chemical reaction for generation of precursor can take place in the bulk fluid, in the thermal-boundary layer, or at the fluid/wall interface, depending upon the interactive effects of fluid dynamics, heat and mass transfer, and the controlling chemical reaction. In the analysis, the experimental data are examined for fouling deposition of polyperoxide produced by autoxidation of indene in kerosene. The effects of fluid and wall temperatures for two flow geometries are analyzed. The results show that the relative effects of physical parameters on the fouling rate differ for the three fouling mechanisms. Therefore, to apply the closed-flow-loop data to industrial conditions, the controlling mechanism must be identified.

  11. Progress in Developing Finite Element Models Replicating Flexural Graphite Testing

    SciTech Connect (OSTI)

    Robert Bratton

    2010-06-01T23:59:59.000Z

    This report documents the status of flexural strength evaluations from current ASTM procedures and of developing finite element models predicting the probability of failure. This work is covered under QLD REC-00030. Flexural testing procedures of the American Society for Testing and Materials (ASTM) assume a linear elastic material that has the same moduli for tension and compression. Contrary to this assumption, graphite is known to have different moduli for tension and compression. A finite element model was developed and demonstrated that accounts for the difference in moduli tension and compression. Brittle materials such as graphite exhibit significant scatter in tensile strength, so probabilistic design approaches must be used when designing components fabricated from brittle materials. ASTM procedures predicting probability of failure in ceramics were compared to methods from the current version of the ASME graphite core components rules predicting probability of failure. Using the ASTM procedures yields failure curves at lower applied forces than the ASME rules. A journal paper was published in the Journal of Nuclear Engineering and Design exploring the statistical models of fracture in graphite.

  12. Vehicle Level Model and Control Development and Validation Under...

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

    Division * NREL Relevance Temperature Has a Significant Impact on Electric Drive Energy Consumption 3 Vehicle Dynamometer Testing Source: ANL APRF - 2013 Ford Cmax Energi Fleet...

  13. Environmental Impacts of Wind Power Development on the Population Biology of Greater Prairie-Chickens

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 FederalTexas Energyof 2005Site-Level ExerciseMarch 14, 2014NovemberImpact

  14. Development of a natural Gas Systems Analysis Model (GSAM). Annual report

    SciTech Connect (OSTI)

    Not Available

    1994-02-01T23:59:59.000Z

    Lacking a detailed characterization of the resource base and a comprehensive borehole-to-burnertip evaluation model of the North American natural gas system, past R&D, tax and regulatory policies have been formulated without a full understanding of their likely direct and indirect impacts on future gas supply and demand. The recent disappearance of the deliverability surplus, pipeline deregulation, and current policy debates about regulatory initiatives in taxation, environmental compliance and leasing make the need for a comprehensive gas evaluation system critical. Traditional econometric or highly aggregated energy models are increasingly regarded as unable to incorporate available geologic detail and explicit technology performance and costing algorithms necessary to evaluate resource-technology-economic interactions in a market context. The objective of this research is to create a comprehensive, non-proprietary, microcomputer model of the North American natural gas system. GSAM explicitly evaluates the key components of the natural gas system, including resource base, exploration and development, extraction technology performance and costs, transportation and storage and end use. The primary focus is the detailed characterization of the resource base at the reservoir and sub-reservoir level and the impact of alternative extraction technologies on well productivity and economics. GSAM evaluates the complex interactions of current and alternative future technology and policy initiatives in the context of the evolving gas markets. Scheduled for completion in 1995, a prototype is planned for early 1994. ICF Resources reviewed relevant natural gas upstream, downstream and market models to identify appropriate analytic capabilities to incorporate into GSAM. We have reviewed extraction technologies to better characterize performance and costs in terms of GSAM parameters.

  15. Threshold law for electron impact ionization in the model of Temkin and Poet

    SciTech Connect (OSTI)

    Macek, J.H. [Univ. of Tennessee, Knoxville, TN (United States)

    1996-05-01T23:59:59.000Z

    The angle-Sturmian theory is used to derive the threshold law for ionization of atomic hydrogen by electron impact in the model of Temkin and Poet. In this model, the exact electron-electron interaction is replaced by its monopole term. As for Wannier`s theory with the real interaction, ionization occurs only for electrons that start out nearly equidistant from the proton. Because there is a high propensity for one electron to be captured into a bound state, ionization is strongly suppressed, giving rise to a threshold law of the form {sigma} {proportional_to} exp[{minus}aE{sup {minus}1/6} + bE{sup 1/6}], where a and b are constants. The exponential law appears to be the quantal counterpart of the classical offset of the ionization threshold. Relative energy distribution are computed and found to favor configurations with unequal energy sharing.

  16. Economic Impacts of Wind Turbine Development in U.S. Counties

    E-Print Network [OSTI]

    J., Brown

    2012-01-01T23:59:59.000Z

    15 percent)). Cumulative wind turbine capacity installed inper capita income of wind turbine development (measured inour sample, cumulative wind turbine capacity on a per person

  17. Hydrogen Production from Biomass via Indirect Gasification: The Impact of NREL Process Development Unit Gasifier Correlations

    SciTech Connect (OSTI)

    Kinchin, C. M.; Bain, R. L.

    2009-05-01T23:59:59.000Z

    This report describes a set of updated gasifier correlations developed by NREL to predict biomass gasification products and Minimum Hydrogen Selling Price.

  18. Life of Sugar: Developing Lifecycle Methods to Evaluate the Energy and Environmental Impacts of Sugarcane Biofuels

    E-Print Network [OSTI]

    Gopal, Anand Raja

    2011-01-01T23:59:59.000Z

    53 Model of the Fuel Ethanoland after the molasses fuel ethanol mandate . . 62 vi ListCost Increases caused by the Fuel Ethanol Mandate A.1 Indian

  19. Development and Implementation of a Program Management Maturity Model

    SciTech Connect (OSTI)

    Hartwig, Laura; Smith, Matt

    2008-12-15T23:59:59.000Z

    In 2006, Honeywell Federal Manufacturing & Technologies (FM&T) announced an updatedvision statement for the organization. The vision is “To be the most admired team within the NNSA [National Nuclear Security Administration] for our relentless drive to convert ideas into the highest quality products and services for National Security by applying the right technology, outstanding program management and best commercial practices.” The challenge to provide outstanding program management was taken up by the Program Management division and the Program Integration Office (PIO) of the company. This article describes how Honeywell developed and deployed a program management maturity model to drive toward excellence.

  20. Development of nuclear models for higher energy calculations

    SciTech Connect (OSTI)

    Bozoian, M.; Siciliano, E.R.; Smith, R.D.

    1988-01-01T23:59:59.000Z

    Two nuclear models for higher energy calculations have been developed in the regions of high and low energy transfer, respectively. In the former, a relativistic hybrid-type preequilibrium model is compared with data ranging from 60 to 800 MeV. Also, the GNASH exciton preequilibrium-model code with higher energy improvements is compared with data at 200 and 318 MeV. In the region of low energy transfer, nucleon-nucleus scattering is predominately a direct reaction involving quasi-elastic collisions with one or more target nucleons. We discuss various aspects of quasi-elastic scattering which are important in understanding features of cross sections and spin observables. These include (1) contributions from multi-step processes; (2) damping of the continuum response from 2p-2h excitations; (3) the ''optimal'' choice of frame in which to evaluate the nucleon-nucleon amplitudes; and (4) the effect of optical and spin-orbit distortions, which are included in a model based on the RPA the DWIA and the eikonal approximation. 33 refs., 15 figs.

  1. Toward Developing Genetic Algorithms to Aid in Critical Infrastructure Modeling

    SciTech Connect (OSTI)

    Not Available

    2007-05-01T23:59:59.000Z

    Today’s society relies upon an array of complex national and international infrastructure networks such as transportation, telecommunication, financial and energy. Understanding these interdependencies is necessary in order to protect our critical infrastructure. The Critical Infrastructure Modeling System, CIMS©, examines the interrelationships between infrastructure networks. CIMS© development is sponsored by the National Security Division at the Idaho National Laboratory (INL) in its ongoing mission for providing critical infrastructure protection and preparedness. A genetic algorithm (GA) is an optimization technique based on Darwin’s theory of evolution. A GA can be coupled with CIMS© to search for optimum ways to protect infrastructure assets. This includes identifying optimum assets to enforce or protect, testing the addition of or change to infrastructure before implementation, or finding the optimum response to an emergency for response planning. This paper describes the addition of a GA to infrastructure modeling for infrastructure planning. It first introduces the CIMS© infrastructure modeling software used as the modeling engine to support the GA. Next, the GA techniques and parameters are defined. Then a test scenario illustrates the integration with CIMS© and the preliminary results.

  2. Impacts of increased bioenergy demand on global food markets: an AgMIP economic model intercomparison

    SciTech Connect (OSTI)

    Lotze-Campen, Hermann; von Lampe, Martin; Kyle, G. Page; Fujimori, Shinichiro; Havlik, Petr; van Meijl, Hans; Hasegawa, Tomoko; Popp, Alexander; Schmitz, Christoph; Tabeau, Andrzej; Valin, Hugo; Willenbockel, Dirk; Wise, Marshall A.

    2014-01-01T23:59:59.000Z

    Integrated Assessment studies have shown that meeting ambitious greenhouse gas mitigation targets will require substantial amounts of bioenergy as part of the future energy mix. In the course of the Agricultural Model Comparison and Improvement Project (AgMIP), five global agro-economic models were used to analyze a future scenario with global demand for ligno-cellulosic bioenergy rising to about 100 ExaJoule in 2050. From this exercise a tentative conclusion can be drawn that ambitious climate change mitigation need not drive up global food prices much, if the extra land required for bioenergy production is accessible or if the feedstock, e.g. from forests, does not directly compete for agricultural land. Agricultural price effects across models by the year 2050 from high bioenergy demand in an RCP2.6-type scenario appear to be much smaller (+5% average across models) than from direct climate impacts on crop yields in an RCP8.5-type scenario (+25% average across models). However, potential future scarcities of water and nutrients, policy-induced restrictions on agricultural land expansion, as well as potential welfare losses have not been specifically looked at in this exercise.

  3. Local content requirements and industrial development : economic analysis and cost modeling of the automotive supply chain

    E-Print Network [OSTI]

    Veloso, Francisco, 1969-

    2001-01-01T23:59:59.000Z

    This dissertation addresses the issue of performance standards in developing nations, focusing on the role of local content requirements. It proposes a theoretical framework to understand the impact of this policy on the ...

  4. Beyond rules: development and evaluation of knowledge acquisition systems for educational knowledge-based modelling 

    E-Print Network [OSTI]

    Conlon, Thomas Hugh

    1997-01-01T23:59:59.000Z

    The technology of knowledge-based systems undoubtedly offers potential for educational modelling, yet its practical impact on today's school classrooms is very limited. To an extent this is because the tools presently ...

  5. Development and Update of Models for Long-Term Energy and GHG...

    Energy Savers [EERE]

    and Update of Models for Long-Term Energy and GHG Impact Evaluation 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

  6. Data collection handbook to support modeling the impacts of radioactive material in soil

    SciTech Connect (OSTI)

    Yu, C.; Cheng, J.J.; Jones, L.G.; Wang, Y.Y.; Faillace, E. [Argonne National Lab., IL (United States). Environmental Assessment and Information Sciences Div.; Loureiro, C. [Minas Gerais Univ., Belo Horizonte, MG (Brazil). Escola de Engenharia; Chia, Y.P. [National Taiwan Univ., Taipei (Taiwan, Province of China). Dept. of Geology

    1993-04-01T23:59:59.000Z

    A pathway analysis computer code called RESRAD has been developed for implementing US Department of Energy Residual Radioactive Material Guidelines. Hydrogeological, meteorological, geochemical, geometrical (size, area, depth), and material-related (soil, concrete) parameters are used in the RESRAD code. This handbook discusses parameter definitions, typical ranges, variations, measurement methodologies, and input screen locations. Although this handbook was developed primarily to support the application of RESRAD, the discussions and values are valid for other model applications.

  7. Cumulative biophysical impact of small and large hydropower development, Nu River, China

    E-Print Network [OSTI]

    Tullos, Desiree

    ; Latin America and Caribbean: Benstead et al., 1999]. New national-level regulations, as well The hydropower sector currently comprises eighty percent of global capacity for renewable energy generation of fostering renewable energy development, allowing realization of low-carbon energy potential in developing

  8. Analysis of methods and models for assessing the direct and indirect economic impacts of CO/sub 2/-induced environmental changes in the agricultural sector of the US economy

    SciTech Connect (OSTI)

    Callaway, J.M.; Cronin, F.J.; Currie, J.W.; Tawil, J.

    1982-08-01T23:59:59.000Z

    The overall purpose of this research was to assist the US Department of Energy (DOE) in developing methods for assessing the direct and indirect economic impacts due to the effects of increases in the ambient concentration of CO/sub 2/ on agricultural production. First, a comprehensive literature search was undertaken to determine what types of models and methods have been developed, which could be effectively used to conduct assessments of the direct and indirect economic impacts of CO/sub 2/ buildup. Specific attention was focused upon models and methods for assessing the physical impacts of CO/sub 2/-induced environmental changes on crop yields; national and multi-regional agricultural sector models; and macroeconomic models of the US economy. The second task involved a thorough investigation of the research efforts being conducted by other public and private sector organizations in order to determine how more recent analytical methods being developed outside of DOE could be effectively integrated into a more comprehensive analysis of the direct economic impacts of CO/sub 2/ buildup. The third and final task involved synthesizing the information gathered in the first two tasks into a systematic framework for assessing the direct and indirect economic impacts of CO/sub 2/-induced environmental changes originating in the agricultural sector of the US economy. It is concluded that the direct economic impacts of CO/sub 2/ on the agricultural sector and the indirect economic impacts caused by spillover effects from agriculture to other sectors of the economy will be pervasive; however, the direction and magnitude of these impacts on producers and consumers cannot be determined a priori.

  9. Impact on sludge inventory and control strategies using the Benchmark Simulation Model No. 1 with the Brger-Diehl

    E-Print Network [OSTI]

    Bürger, Raimund

    Impact on sludge inventory and control strategies using the Benchmark Simulation Model No. 1 concentration predictions, plant sludge inventory and mixed liquor suspended solids based control actions-Diehl model allows for more realistic predictions of the underflow sludge concentration which is essential

  10. Modeling the natural attenuation of benzene in groundwater impacted by ethanol-blended fuels: Effect of ethanol content

    E-Print Network [OSTI]

    Alvarez, Pedro J.

    Modeling the natural attenuation of benzene in groundwater impacted by ethanol-blended fuels: Effect of ethanol content on the lifespan and maximum length of benzene plumes Diego E. Gomez1 and Pedro 10 March 2009. [1] A numerical model was used to evaluate how the concentration of ethanol

  11. Impact of Mouse Model on Pre-Clinical Dosimetry in Targeted Radionuclide Therapy Samir Boutaleb1,2

    E-Print Network [OSTI]

    Boyer, Edmond

    1/1 Impact of Mouse Model on Pre-Clinical Dosimetry in Targeted Radionuclide Therapy Samir Boutaleb animal dosimetry serves as an important link in establishing a relationship between absorbed dose are based on models aiming at representing the animals used during pre-clinical experiments. However

  12. Development of a natural gas systems analysis model (GSAM)

    SciTech Connect (OSTI)

    NONE

    1999-10-01T23:59:59.000Z

    This report provides an overview of the activities to date and schedule for future testing, validation, and authorized enhancements of Natural Gas Systems Analysis Model (GSAM). The goal of this report is to inform DOE managers of progress in model development and to provide a benchmark for ongoing and future research. Section II of the report provides a detailed discussion on the major GSAM development programs performed and completed during the period of performance, July 1, 1998 to September 30, 1999. Key improvements in the new GSAM version are summarized in Section III. Programmer's guides for GSAM main modules were produced to provide detailed descriptions of all major subroutines and main variables of the computer code. General logical flowcharts of the subroutines are also presented in the guides to provide overall picture of interactions between the subroutines. A standard structure of routine explanation is applied in every programmer's guide. The explanation is started with a brief description or main purpose of the routine, lists of input and output files read and created, and lists of invoked/child and calling/parent routines. In some of the guides, interactions between the routine itself and its parent and child routines are presented in the form of graphical flowchart. The explanation is then proceeded with step by step description of computer code in the subroutine where each step delegates a section of related code. Between steps, if a certain section of code needs further explanation, a Note is inserted with relevant explanation.

  13. LNG SAFETY RESEARCH: FEM3A MODEL DEVELOPMENT

    SciTech Connect (OSTI)

    Jerry Havens; Iraj A. Salehi

    2005-05-10T23:59:59.000Z

    The objective of this report is to develop the FEM3A model for application to general scenarios involving dispersion problems with obstacles and terrain features of realistic complexity, and for very low wind speed, stable weather conditions as required for LNG vapor dispersion application specified in 49 CFR 193. The dispersion model DEGADIS specified in 49 CFR 193 is limited to application for dispersion over smooth, level terrain free of obstacles (such as buildings, tanks, or dikes). There is a need for a dispersion model that allows consideration of the effects of terrain features and obstacles on the dispersion of LNG vapor clouds. Project milestones are: (1) Simulation of Low-Wind-Speed Stable Atmospheric Milestones Conditions; (2) Verification for Dispersion over Rough Surfaces, With And Without Obstacles; and (3) Adapting the FEM3A Model for General Application. Results for this quarter are work continues to underway to address numerical problems during simulation of low-wind-speed, stable, atmospheric conditions with FEM3A. Steps 1 and 2 in the plan outlined in the first Quarterly report are complete and steps 3 and 4 are in progress. During this quarter, we have been investigating the effect upon numerical stability of the heat transfer model used to predict the surface-to-cloud heat transfer, which can be important for LNG vapor dispersion. Previously, no consideration has been given to ground cooling as a result of heat transfer to the colder gas cloud in FEM3A. The present effort is directed to describing the ground surface temperature decrease as a function of time.

  14. The Danube Delta Biosphere Reserve: a Case Study for Qualitative Modeling of Sustainable Development

    E-Print Network [OSTI]

    Bailey-Kellogg, Chris

    We present progress towards developing a qualitative reasoning model of sustainable development's Strategy for Sustainable Development (SSD) that call for increasing participation in the process of making decisions that affect sustainable development (SD), stakeholders, decision makers, and citizens must gain

  15. Development, Review, and Publication of the Hanford Site Solid Waste Program Environmental Impact Statement

    SciTech Connect (OSTI)

    Gajewski, Stephen W.; Johnson, Wayne L.; Payson, David R.; Rhoads, Kathleen; Sanders, George H.

    2004-02-01T23:59:59.000Z

    The Hanford Site Solid (Radioactive and Hazardous) Waste Program Environmental Impact Statement (HSW EIS) provides environmental and technical information concerning U.S. Department of Energy (DOE) proposed waste management practices at the Hanford Site. The HSW EIS covers four primary aspects of waste management at Hanford – waste treatment, storage, transportation, and disposal. It also addresses four kinds of solid radioactive waste – low-level waste (LLW), mixed (radioactive and chemically hazardous) low-level waste (MLLW), transuranic (TRU) waste (including mixed TRUW), and immobilized low-activity waste (ILAW) from treatment of Hanford’s tanks waste. The HSW EIS is intended to help DOE determine what specific Hanford Site facilities will continue to be used, will be modified, or need to be constructed to treat, store, and dispose of these wastes.

  16. An analysis of the impact of mergers between community development corporations

    E-Print Network [OSTI]

    Haque, Shoma S

    2005-01-01T23:59:59.000Z

    This thesis explores the occurrence of mergers between community development corporations (CDC's) in the United States in the past five years. The research examines how mergers between CDC's affect their capacity to achieve ...

  17. Essays on the Impact of Development on Agricultural Land Amenities and Values in Texas

    E-Print Network [OSTI]

    Machingambi, Memory

    2010-07-14T23:59:59.000Z

    Market land prices ignore the non-market value of ecosystem goods and services; hence, too much agricultural land may be developed. Correct land valuation must include these non-market values. Values of ecosystem services provided by the Richland...

  18. Ex post analysis of economic impacts from wind power development in U.S. counties

    E-Print Network [OSTI]

    Brown, Jason P

    2014-01-01T23:59:59.000Z

    2011) Figure 1. Location of Wind Power Development in theUnited States Figure 2: U.S. Wind Resource Map (Source:Resource Potential for Wind Capacity (Power Class 3-7, MW)

  19. The Energy and CO2 Emissions Impact of Renewable Energy Development in China

    E-Print Network [OSTI]

    Zhang, X.

    China’s recently-adopted targets for developing renewable electricity—wind, solar, and biomass—would require expansion on an unprecedented scale in China and relative to existing global installations. An important question ...

  20. Key Economic Drivers Impacting Eagle Ford Development from Resource to Reserves

    E-Print Network [OSTI]

    Del Busto Pinzon, Andres Mauricio

    2013-11-25T23:59:59.000Z

    to develop statistical distributions for additional parameters, including differentials for commodity prices, natural gas content for the different production regions, and water/gas and water/oil ratios. We consider three evaluation scenarios–single-well...

  1. The Impact of STEM PBL Teacher Professional Development on Student Mathematics Achievement in High Schools

    E-Print Network [OSTI]

    Han, Sun Young

    2013-05-20T23:59:59.000Z

    This dissertation consists of three articles that explore the effect of professional development (PD) on teachers‘ understanding and implementation of Science, Technology, Engineering, and Mathematics (STEM) project based learning (PBL...

  2. Communication between Toxoplasma gondii and its host: impact on parasite growth, development, immune evasion, and virulence

    E-Print Network [OSTI]

    Blader, Ira J.

    Toxoplasma gondii is an obligate intracellular protozoan parasite that can infect most warm-blooded animals and cause severe and life-threatening disease in developing fetuses and in immune-compromised patients. Although ...

  3. 2013 International Low Impact Development Symposium August 18-21, 2013 | St. Paul, Minnesota

    E-Print Network [OSTI]

    Minnesota, University of

    Century Avi Friedman, Ph.D., Professor of Architecture and Director, Affordable Homes Research Group, Mc: Using Sustainable Sites to Get the Most from Development Kim Chapman, Applied Ecological Services, Inc

  4. Impact of Water Resource Development on Coastal Erosion, Brazos River, Texas

    E-Print Network [OSTI]

    Mathewson, C. C.; Minter, L. L.

    Major dam and reservoir development within the Brazos River Basin is correlative with a significant decrease in the suspended sediment load of the river and with increased coastal erosion rates near the delta. A hydrologic analysis of the river...

  5. The impact of climate change on ski resort operations and development : opportunities and threats

    E-Print Network [OSTI]

    McGill, Daniel D. D. (Daniel Dulany deButts)

    2007-01-01T23:59:59.000Z

    This thesis serves as a pedagogical guide to the ski resort industry, and presents a broad overview of the unique issues that accompany climate change. The paper also provides recommendations to resort developers as to ...

  6. Impact of geothermal development on the state of Hawaii. Executive summary. Volume 7

    SciTech Connect (OSTI)

    Siegel, B.Z.

    1980-06-01T23:59:59.000Z

    Questions regarding the sociological, legal, environmental, and geological concerns associated with the development of geothermal resources in the Hawaiian Islands are addressed in this summary report. Major social changes, environmental degradation, legal and economic constraints, seismicity, subsidence, changes in volcanic activity, accidents, and ground water contamination are not major problems with the present state of development, however, the present single well does not provide sufficient data for extrapolation. (ACR)

  7. Development of an atmospheric aerosol model for studies of global budgets and effects of airborne particulate material

    SciTech Connect (OSTI)

    Giorgi, F.

    1986-01-01T23:59:59.000Z

    A microphysics-removal atmospheric aerosol model (AAM) is developed for use in general circulation models (GCMs) to study global budgets and effects of particulate material. In this model the particle population is composed of a set of log-normal modes whose time evolution due to microphysical processes is described via prognostic equations for an appropriate number of moments of the particle-size distribution. Detailed parameterizations of particle coagulation, sedimentation, dry deposition, and wet removal are developed and implemented into the AAM. The AAM is incorporated into a GCM and is applied to two types of studies: (1) characteristics of the particle wet and dry removal processes, and (2) climatic impact of massive particulate injections following a global nuclear war, with emphasis on the sensitivity of the simulated effects to the inclusion of particle microphysics. Results are discussed.

  8. Minipig and beagle animal model genomes aid species selection in pharmaceutical discovery and development

    SciTech Connect (OSTI)

    Vamathevan, Jessica J., E-mail: jessica.j.vamathevan@gsk.com [Computational Biology, Quantitative Sciences, GlaxoSmithKline, Stevenage (United Kingdom); Hall, Matthew D.; Hasan, Samiul; Woollard, Peter M. [Computational Biology, Quantitative Sciences, GlaxoSmithKline, Stevenage (United Kingdom); Xu, Meng; Yang, Yulan; Li, Xin; Wang, Xiaoli [BGI-Shenzen, Shenzhen (China); Kenny, Steve [Safety Assessment, PTS, GlaxoSmithKline, Ware (United Kingdom); Brown, James R. [Computational Biology, Quantitative Sciences, GlaxoSmithKline, Collegeville, PA (United States); Huxley-Jones, Julie [UK Platform Technology Sciences (PTS) Operations and Planning, PTS, GlaxoSmithKline, Stevenage (United Kingdom); Lyon, Jon; Haselden, John [Safety Assessment, PTS, GlaxoSmithKline, Ware (United Kingdom); Min, Jiumeng [BGI-Shenzen, Shenzhen (China); Sanseau, Philippe [Computational Biology, Quantitative Sciences, GlaxoSmithKline, Stevenage (United Kingdom)

    2013-07-15T23:59:59.000Z

    Improving drug attrition remains a challenge in pharmaceutical discovery and development. A major cause of early attrition is the demonstration of safety signals which can negate any therapeutic index previously established. Safety attrition needs to be put in context of clinical translation (i.e. human relevance) and is negatively impacted by differences between animal models and human. In order to minimize such an impact, an earlier assessment of pharmacological target homology across animal model species will enhance understanding of the context of animal safety signals and aid species selection during later regulatory toxicology studies. Here we sequenced the genomes of the Sus scrofa Göttingen minipig and the Canis familiaris beagle, two widely used animal species in regulatory safety studies. Comparative analyses of these new genomes with other key model organisms, namely mouse, rat, cynomolgus macaque, rhesus macaque, two related breeds (S. scrofa Duroc and C. familiaris boxer) and human reveal considerable variation in gene content. Key genes in toxicology and metabolism studies, such as the UGT2 family, CYP2D6, and SLCO1A2, displayed unique duplication patterns. Comparisons of 317 known human drug targets revealed surprising variation such as species-specific positive selection, duplication and higher occurrences of pseudogenized targets in beagle (41 genes) relative to minipig (19 genes). These data will facilitate the more effective use of animals in biomedical research. - Highlights: • Genomes of the minipig and beagle dog, two species used in pharmaceutical studies. • First systematic comparative genome analysis of human and six experimental animals. • Key drug toxicology genes display unique duplication patterns across species. • Comparison of 317 drug targets show species-specific evolutionary patterns.

  9. Modeling the resuspension of radionuclides in Ukranian regions impacted by Chernobyl fallout

    SciTech Connect (OSTI)

    Nair, S.K.; Thiessen, K.M.; Hoffman, F.O. [SENES Oak Ridge Inc., TN (United States)] [and others

    1997-01-01T23:59:59.000Z

    Following the 1986 Chernobyl event, large amounts of radioactive materials were deposited in nearby areas. Concentrations of various radionuclides were measured in air and surface soil. To study the resuspension of radioactive particulate, three different exposure situations were developed on the basis of the collected data under the auspices of the international BIOMOVS II (BIOspheric MOdel Validation Study) project. Modelers were asked to predict seasonal air concentrations and resuspension factors at several locations at different distances from Chernobyl for six successive years following the accident. Measurements of radionuclide deposition on topsoil were provided for each site along with information on soil, vegetation, land use, surface roughness, meteorology, and climate. In this paper, the three exposure situations are described, along with the initial data set provided to the modelers; two modeling approaches used to make the endpoint predictions are also presented. After the model predictions were submitted, the measured air concentrations and resuspension factors were released to the modelers. Generally, the predictions were well within an order of magnitude of the measured values. Time-dependent trends in predictions and measurements were in good agreement with one of the models, which (a) explicitly accounted for loss processes in soil and (b) used calibration to improve its predictive capabilities. Reasons for variations between predictions and measurements, suggestions for the improvement of models, and conclusions from the model validation study are presented. 12 refs., 15 figs., 4 tabs.

  10. Light-absorbing Particles in Snow and Ice: Measurement and Modeling of Climatic and Hydrological Impact

    SciTech Connect (OSTI)

    Qian, Yun; Yasunari, Teppei J.; Doherty, Sarah J.; Flanner, M. G.; Lau, William K.; Ming, J.; Wang, Hailong; Wang, Mo; Warren, Stephen G.; Zhang, Rudong

    2015-01-01T23:59:59.000Z

    Light absorbing particles (LAP, e.g., black carbon, brown carbon, and dust) influence water and energy budgets of the atmosphere and snowpack in multiple ways. In addition to their effects associated with atmospheric heating by absorption of solar radiation and interactions with clouds, LAP in snow on land and ice can reduce the surface reflectance (a.k.a., surface darkening), which is likely to accelerate the snow aging process and further reduces snow albedo and increases the speed of snowpack melt. LAP in snow and ice (LAPSI) has been identified as one of major forcings affecting climate change, e.g. in the fourth and fifth assessment reports of IPCC. However, the uncertainty level in quantifying this effect remains very high. In this review paper, we document various technical methods of measuring LAPSI and review the progress made in measuring the LAPSI in Arctic, Tibetan Plateau and other mid-latitude regions. We also report the progress in modeling the mass concentrations, albedo reduction, radiative forcing, andclimatic and hydrological impact of LAPSI at global and regional scales. Finally we identify some research needs for reducing the uncertainties in the impact of LAPSI on global and regional climate and the hydrological cycle.

  11. Model Development to Establish Integrated Operational Rule Curves for Hungry Horse and Libby Reservoirs - Montana, 1996 Final Report.

    SciTech Connect (OSTI)

    Marotz, Brian; Althen, Craig; Gustafson, Daniel

    1996-01-01T23:59:59.000Z

    Hungry Horse and Libby dams have profoundly affected the aquatic ecosystems in two major tributaries of the Columbia River by altering habitat and water quality, and by imposing barriers to fish migration. In 1980, the U.S. Congress passed the Pacific Northwest Electric Power Planning and Conservation Act, designed in part to balance hydropower development with other natural resources in the Columbia System. The Act formed the Northwest Power Planning Council (Council) who developed a program to protect, mitigate and enhance fish and wildlife on the Columbia River and its tributaries. Pursuant to the Council`s Fish and Wildlife Program for the Columbia River System (1987), we constructed computer models to simulate the trophic dynamics of the reservoir biota as related to dam operation. Results were used to develop strategies to minimize impacts and enhance the reservoir and riverine fisheries, following program measures 903(a)(1-4) and 903(b)(1-5). Two FORTRAN simulation models were developed for Hungry Horse and Libby reservoirs located in northwestern Montana. The models were designed to generate accurate, short-term predictions specific to two reservoirs and are not directly applicable to other waters. The modeling strategy, however, is portable to other reservoir systems where sufficient data are available. Reservoir operation guidelines were developed to balance fisheries concerns in the headwaters with anadromous species recovery actions in the lower Columbia (Biological Rule Curves). These BRCs were then integrated with power production and flood control to reduce the economic impact of basin-wide fisheries recovery actions. These Integrated Rule Curves (IRCs) were developed simultaneously in the Columbia Basin System Operation Review (SOR), the Council`s phase IV amendment process and recovery actions associated with endangered Columbia Basin fish species.

  12. Monitoring and Modeling Fluid Flow in a Developing EGS

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

    well constrained are depths of the events? How well can we do with a relatively sparse seismic network located on the surface (typical EGS monitoring) RelevanceImpact of Research...

  13. Limei Ran Research Associate, Center for Environmental Modeling for Policy Development

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    the Community Multiscale Air Quality Model (CMAQ) with the Environmental Policy Integrated Limei Ran Research Associate, Center for Environmental Modeling for Policy Development

  14. Hawaii Energy Resource Overviews. Volume 5. Social and economic impacts of geothermal development in Hawaii

    SciTech Connect (OSTI)

    Canon, P.

    1980-06-01T23:59:59.000Z

    The overview statement of the socio-economic effects of developing geothermal energy in the State of Hawaii is presented. The following functions are presented: (1) identification of key social and economic issues, (2) inventory of all available pertinent data, (3) analysis and assessment of available data, and (4) identification of what additional information is required for adequate assessment.

  15. Academic Language Proficiency Development and Its Impact on Reading Comprehension: Within and Across Languages 

    E-Print Network [OSTI]

    Spies, Tracy

    2012-07-16T23:59:59.000Z

    A path model of second language (L2; English) oral language and reading comprehension variables was tested on a sample of 100 Spanish-speaking English-language learners enrolled in a transitional bilingual program over a 3-year period. The data...

  16. Simulation study of the impact of world oil prices on the development of the Libyan economy

    SciTech Connect (OSTI)

    Abosedra, S.S.

    1984-01-01T23:59:59.000Z

    The goal of this study was to determine quantitatively how sensitive and vulnerable the Libyan economy's aggregates are to fluctuations in world oil prices. In order to achieve the goal, a macroeconomic model of the Libyan economy was constructed using annual data from 1962-1978. The model contains 36 relations, of which 19 are behavioral equations and 17 are identities. The model was validated by both historical simulation and a one-period out-of-sample forecast. Having established the predictive ability of the model, alternative future scenarios of the Libyan economy were examined from 1980-1987 by performing an ex-ante simulation for this period. This simulation was divided into two sections. The first covers the period 1980-1983, for which actual data for Libyan oil prices and the volume of Libyan oil exports are available. The second section covers the period 1984-1987. In this section the future of the Libyan economy was simulated under a basic price scenario which reflects the most likely forecast regarding the world oil price level from 1984-1987. In addition, a sensitivity analysis was performed by establishing a new scenario for the world oil price level from 1984-1987. A comparison the results of these simulations shows the effects resulting from changes in the world oil price level on the Libyan economy.

  17. The Potential Impacts of OTEC Intakes on Aquatic Organisms at an OTEC Site under Development on Kauai, HI

    SciTech Connect (OSTI)

    Oney, Stephen K. [OTE Corporation; Hogan, Timothy [Alden Research Laboratory; Steinbeck, John [Tenera Environmental

    2013-08-31T23:59:59.000Z

    Ocean thermal energy conversion (OTEC) is a marine renewable energy technology with the potential to contribute significantly to the baseload power needs of tropical island communities and remote U.S. military installations. As with other renewable energy technologies, however, there are potential challenges to its commercialization: technological, financial, social, and environmental. Given the large volumes of seawater required to drive the electricity-producing cycle, there is potential for the intakes to negatively impact the marine resources of the source waterbody through the impingement and entrainment of marine organisms. The goal of this project was to identify feasible warm water intake designs for a land-based OTEC facility proposed for development in Port Allen, Kauai and to characterize the populations of ichthyoplankton near the proposed warm water intake location that could be at risk of entrainment. The specific objectives of this project were to: • Complete a site-specific assessment of available and feasible warm water intake technologies to determine the best intake designs for minimizing impacts to aquatic organisms at the proposed land-based OTEC site in Port Allen, Kauai. • Complete a field sampling program to collect biological data to characterize the baseline populations of ichthyoplankton near the sites being considered for the warm water intake at the proposed land-based OTEC site in Port Allen, Kauai. Various intake design options are presented with the focus on providing adequate environmental protection to the local ichthyoplankton population while providing an economically viable intake option to the OTEC developer. Further definition by NOAA and other environmental regulators is required to further refine the designs presented to meet all US regulations for future OTEC development.

  18. Assessment of Energy Removal Impacts on Physical Systems: Hydrodynamic Model Domain Expansion and Refinement, and Online Dissemination of Model Results

    SciTech Connect (OSTI)

    Yang, Zhaoqing; Khangaonkar, Tarang; Wang, Taiping

    2010-08-01T23:59:59.000Z

    In this report we describe the 1) the expansion of the PNNL hydrodynamic model domain to include the continental shelf along the coasts of Washington, Oregon, and Vancouver Island; and 2) the approach and progress in developing the online/Internet disseminations of model results and outreach efforts in support of the Puget Sound Operational Forecast System (PS-OPF). Submittal of this report completes the work on Task 2.1.2, Effects of Physical Systems, Subtask 2.1.2.1, Hydrodynamics, for fiscal year 2010 of the Environmental Effects of Marine and Hydrokinetic Energy project.

  19. Recent Developments in No-Core Shell-Model Calculations

    SciTech Connect (OSTI)

    Navratil, P; Quaglioni, S; Stetcu, I; Barrett, B R

    2009-03-20T23:59:59.000Z

    We present an overview of recent results and developments of the no-core shell model (NCSM), an ab initio approach to the nuclear many-body problem for light nuclei. In this aproach, we start from realistic two-nucleon or two- plus three-nucleon interactions. Many-body calculations are performed using a finite harmonic-oscillator (HO) basis. To facilitate convergence for realistic inter-nucleon interactions that generate strong short-range correlations, we derive effective interactions by unitary transformations that are tailored to the HO basis truncation. For soft realistic interactions this might not be necessary. If that is the case, the NCSM calculations are variational. In either case, the ab initio NCSM preserves translational invariance of the nuclear many-body problem. In this review, we, in particular, highlight results obtained with the chiral two- plus three-nucleon interactions. We discuss efforts to extend the applicability of the NCSM to heavier nuclei and larger model spaces using importance-truncation schemes and/or use of effective interactions with a core. We outline an extension of the ab initio NCSM to the description of nuclear reactions by the resonating group method technique. A future direction of the approach, the ab initio NCSM with continuum, which will provide a complete description of nuclei as open systems with coupling of bound and continuum states is given in the concluding part of the review.

  20. Hawaii Energy Resource Overviews. Volume 4. Impact of geothermal resource development in Hawaii (including air and water quality)

    SciTech Connect (OSTI)

    Siegel, S.M.; Siegel, B.Z.

    1980-06-01T23:59:59.000Z

    The environmental consequences of natural processes in a volcanic-fumerolic region and of geothermal resource development are presented. These include acute ecological effects, toxic gas emissions during non-eruptive periods, the HGP-A geothermal well as a site-specific model, and the geothermal resources potential of Hawaii. (MHR)

  1. Business Process Modeling for developing Process Oriented IT Systems Track: Business Process Management Tools and Technologies

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Business Process Modeling for developing Process Oriented IT Systems Track: Business Process should be like. Therefore, business process modeling becomes a pre-requisite for system requirements, the paradigm of Business Process Management contrasts with traditional information system development, which

  2. Development of a Model Specification for Performance Monitoring Systems for Commercial Buildings

    E-Print Network [OSTI]

    Development of a Model Specification for Performance Monitoring Systems for Commercial Buildings the development of a model specification for performance monitoring systems for commercial buildings capabilities in #12;commercial buildings by demonstrating the capabilities of commercially available technology

  3. Modeling regional transportation demand in China and the impacts of a national carbon constraint

    E-Print Network [OSTI]

    Kishimoto, Paul

    2015-01-30T23:59:59.000Z

    Climate and energy policy in China will have important and uneven impacts on the country’s regionally heterogeneous transport system. In order to simulate these impacts, transport sector detail is added to a multi-sector, ...

  4. Computable General Equilibrium Models for Eco-nomic Policy Evaluation and Impact Analysis

    E-Print Network [OSTI]

    Wing, Ian Sue

    to the assessment of the economic impacts of policies ranging from tax reforms to the mitigation and adaptation

  5. Assessing the prospective environmental impacts of photovoltaic systems based on a simplified LCA model

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Assessing the prospective environmental impacts of photovoltaic systems based on a simplified LCA the environmental impacts of PV systems are small during their operating phase, they are more significant during the use of LCA to assess the environmental impacts of one electricity-production technology. To address

  6. Tuesday, March 13, 2007 POSTER SESSION I: IMPACT CRATERING FROM EXPERIMENTS AND MODELING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    : Implications for Light Source Distribution [#2353] The distribution and evolution of the impact flash light the impact site, seismic signal, as well as plume evolution and material dispersion in the upper atmosphere. This study shows that impact induced tsunami-like waves decay much more rapid than previously assumed. Thus

  7. The Hydrological Impact of Geoengineering in the Geoengineering Model Intercomparison Project (GeoMIP)

    SciTech Connect (OSTI)

    Tilmes, S.; Fasullo, John; Lamarque, J.-F.; Marsh, D.; Mills, Mike; Alterskjaer, Kari; Muri, Helene O.; Kristjansson, Jon E.; Boucher, Olivier; Schulz, M.; Cole, Jason N.; Curry, Charles L.; Jones, A.; Haywood, J.; Irvine, Peter; Ji, Duoying; Moore, John; Bou Karam, Diana; Kravitz, Benjamin S.; Rasch, Philip J.; Singh, Balwinder; Yoon, Jin-Ho; Niemeier, Ulrike; Schmidt, Hauke; Robock, Alan; Yang, Shuting; Watanabe, Shingo

    2013-10-14T23:59:59.000Z

    Abstract: The hydrologic impact of enhancing Earth’s albedo due to solar radiation management (SRM) is investigated using simulations from 12 models contributing to the Geoengineering Model Intercomparison Project (GeoMIP). An artificial experiment is investigated, where global mean temperature is preserved at pre-industrial conditions, while atmospheric carbon dioxide concentrations are quadrupled. The associated reduction of downwelling surface solar radiation in a high CO2 environment leads to a reduction of global evaporation of 10% and 4% and precipitation of 6.1% and 6.3% over land and ocean, respectively. An initial reduction of latent heat flux at the surface is largely driven by reduced evapotranspiration over land with instantly increasing CO2 concentrations in both experiments. A warming surface associated with the transient adjustment in the 4xCO2 experiment further generates an increase of global precipitation, with considerable regional changes, such as a significant precipitation reduction of 7% for the North American summer monsoon. Reduced global precipitation persists in the geoengineered experiment where temperatures are stabilized, with considerable regional rainfall deficits. Precipitation reductions that are consistent in sign across models are identified in the geoengineered experiment over monsoonal land regions of East Asia (6%), North America (7%), South America (6%) and South Africa (5%). In contrast to the 4xCO2 experiment, where the frequency of months with heavy precipitation intensity is increased by over 50%, it is reduced by up to 20% in the geoengineering scenario . The reduction in heavy precipitation is more pronounced over land than over the ocean, and accompanies a stronger reduction in evaporation over land. For northern mid-latitudes, maximum precipitation reduction over land ranges from 1 to 16% for individual models. For 45-65°N, the frequency of median to high intensity precipitation in summer is strongly reduced. These changes in precipitation in both total amount and frequency of extremes, point to a considerable weakening of the hydrological cycle in a geoengineered world.

  8. ePLAS Development for Jet Modeling and Applications

    SciTech Connect (OSTI)

    Dr. Rodney J. Mason

    2011-09-07T23:59:59.000Z

    Plasma jets provide an alternate approach to the creation of high energy density laboratory plasmas (HEDLP). For the Plasma Liner Experiment (PLX), typically 30 partially ionized argon jets, produced with mini-rail guns, will be focused into a central volume for subsequent magnetic compression into high density plasma liners that can reach high (0.1 Mbar) peak pressures upon stagnation. The jets are typically 2.5 cm in radius traveling at Mach number 30. Ultimate success will require optimized tuning of the rail configurations, the nozzles injecting the gases, and the careful implementation of pre-ionization. The modeling of plasma jet transport is particularly challenging, due the large space (100 sq cm) and time scales (microseconds) involved. Even traditional implicit methods are insufficient, due to the usual need to track electrons explicitly on the mesh. Wall emission and chemistry must be managed, as must ionization of the jet plasma. Ions in the jets are best followed as particles to account properly for collisions upon jet merger. This Phase I Project developed the code ePLAS to attack and successfully surmount many of these challenges. It invented a new 'super implicit' electromagnetic scheme, using implicit electron moment currents that allowed for modeling of jets over multi-cm and multi-picoseconds on standard, single processor 2 GHz PCs. It enabled merger studies of two jets, in preparation for the multi-jet merger problem. The Project explored particle modeling for the ions, and prepared for the future addition of a grid-base jet ion collision model. Access was added to tabular equations of state for the study of ionization effects in merging jets. The improved code was discussed at the primary plasma meetings (IEEE and APS) during the Project period. Collaborations with National Laboratory and industrial partners were nurtured. Code improvements were made to facilitate code use. See: http://www.researchapplicationscorp.com. The ePLAS code enjoys EAR99 export control treatment, permitting distribution to most foreign countries without a license.

  9. Development and Control of Autonomous, Biped Locomotion using Efficient Modeling, Simulation, and Optimization Techniques

    E-Print Network [OSTI]

    Stryk, Oskar von

    of joint reference trajectories for implementing first steps, the development of nonlinear dynamics model-basedDevelopment and Control of Autonomous, Biped Locomotion using Efficient Modeling, Simulation from simulations and gait optimizations completed during its development using a 3D dynamic biped model

  10. Impact of Pilot Light Modeling on the Predicted Annual Performance of Residential Gas Water Heaters: Preprint

    SciTech Connect (OSTI)

    Maguire, J.; Burch, J.

    2013-08-01T23:59:59.000Z

    Modeling residential water heaters with dynamic simulation models can provide accurate estimates of their annual energy consumption, if the units? characteristics and use conditions are known. Most gas storage water heaters (GSWHs) include a standing pilot light. It is generally assumed that the pilot light energy will help make up standby losses and have no impact on the predicted annual energy consumption. However, that is not always the case. The gas input rate and conversion efficiency of a pilot light for a GSWH were determined from laboratory data. The data were used in simulations of a typical GSWH with and without a pilot light, for two cases: 1) the GSWH is used alone; and 2) the GSWH is the second tank in a solar water heating (SWH) system. The sensitivity of wasted pilot light energy to annual hot water use, climate, and installation location was examined. The GSWH used alone in unconditioned space in a hot climate had a slight increase in energy consumption. The GSWH with a pilot light used as a backup to an SWH used up to 80% more auxiliary energy than one without in hot, sunny locations, from increased tank losses.

  11. Development and Impact Evaluation of an E-Learning Radiation Oncology Module

    SciTech Connect (OSTI)

    Alfieri, Joanne, E-mail: Joanne.alfieri@mail.mcgill.ca [Department of Radiation Oncology, McGill University Health Centre, Montreal, QC (Canada); Portelance, Lorraine; Souhami, Luis [Department of Radiation Oncology, McGill University Health Centre, Montreal, QC (Canada); Steinert, Yvonne; McLeod, Peter [Centre for Medical Education, McGill University, Montreal, QC (Canada); Gallant, Fleure [Department of Radiation Oncology, McGill University Health Centre, Montreal, QC (Canada); Artho, Giovanni [Department of Radiology, McGill University Health Centre, Montreal, QC (Canada)

    2012-03-01T23:59:59.000Z

    Purpose: Radiation oncologists are faced with the challenge of irradiating tumors to a curative dose while limiting toxicity to healthy surrounding tissues. This can be achieved only with superior knowledge of radiologic anatomy and treatment planning. Educational resources designed to meet these specific needs are lacking. A web-based interactive module designed to improve residents' knowledge and application of key anatomy concepts pertinent to radiotherapy treatment planning was developed, and its effectiveness was assessed. Methods and Materials: The module, based on gynecologic malignancies, was developed in collaboration with a multidisciplinary team of subject matter experts. Subsequently, a multi-centre randomized controlled study was conducted to test the module's effectiveness. Thirty-six radiation oncology residents participated in the study; 1920 were granted access to the module (intervention group), and 17 in the control group relied on traditional methods to acquire their knowledge. Pretests and posttests were administered to all participants. Statistical analysis was carried out using paired t test, analysis of variance, and post hoc tests. Results: The randomized control study revealed that the intervention group's pretest and posttest mean scores were 35% and 52%, respectively, and those of the control group were 37% and 42%, respectively. The mean improvement in test scores was 17% (p < 0.05) for the intervention group and 5% (p = not significant) for the control group. Retrospective pretest and posttest surveys showed a statistically significant change on all measured module objectives. Conclusions: The use of an interactive e-learning teaching module for radiation oncology is an effective method to improve the radiologic anatomy knowledge and treatment planning skills of radiation oncology residents.

  12. Virtual Community Life Cycle: a Model to Develop Systems with Fluid Requirements Christo El Morr1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Virtual Community Life Cycle: a Model to Develop Systems with Fluid Requirements Christo El Morr1 into the life cycle model needed to develop information systems for group of people with fluid requirements development life cycles can be followed when developing any virtual community. Though, in a fluid environment

  13. Challenges and successes with economic and business development models at the local level: The Quatsino experience

    E-Print Network [OSTI]

    Challenges and successes with economic and business development models at the local level: 534 Title of Project: Challenges and successes with economic and business development models !)*+#&,+( In this case study, I examine the economic development and business development experiences of the Quatsino

  14. Development of a scalable model for predicting arsenic transport coupled with oxidation and adsorption reactions

    E-Print Network [OSTI]

    Clement, Prabhakar

    modeling; Contaminant transport; Scaling; Numerical modeling 1. Introduction Management of groundwaterDevelopment of a scalable model for predicting arsenic transport coupled with oxidation is critical for predicting its transport dynamics in groundwater systems. We completed batch experiments

  15. Monitoring and Modeling Fluid Flow in a Developing EGS Reservoir...

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

    model fluid injection into a tight reservoir on the edges of a hydrothermal field. Use seismic data to constrain geomechanicalhydrologicthermal model of reservoir....

  16. Monitoring and Modeling Fluid Flow in a Developing Enhanced Geothermal...

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

    fluid injection into a tight reservoir on the edges of a hydrothermal field; to use seismic data to constrain geomechanicalhydrologicthermal model of reservoir; to model for...

  17. Monitoring and Modeling Fluid Flow in a Developing EGS Reservoir

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

    fluid injection into a tight reservoir on the edges of a hydrothermal field * Use seismic data to constrain geomechanicalhydrologicthermal model of reservoir * Model for...

  18. Development and pilot testing of modular dynamic thermomechanical pulp mill model to develop energy reduction strategies. Final report

    SciTech Connect (OSTI)

    Coffin, D.W.

    1996-10-01T23:59:59.000Z

    With the development of on-line and real-time process simulations, one obtains the ability to predict and control the process; thus, the opportunity exists to improve energy efficiency, decrease materials wastes, and maintain product quality. Developing this capability was the objective of the this research program. A thermomechanical pulp mill was simulated using both a first principles model and a neural network. The models made use of actual process data and a model that calculated the mass and energy balance of the mill was successfully implemented and run at the mill on an hourly basis. The attempt to develop a model that accurately predicted the quality of the pulp was not successful. It was concluded that the key fro a successful implementation of a real-time control model, such as a neural net model, is availability of on-line sensors that sufficiently characterize the pulp.

  19. Development and application of the EPIC model for carbon cycle, greenhouse-gas mitigation, and biofuel studies

    SciTech Connect (OSTI)

    Izaurralde, Roberto C.; Mcgill, William B.; Williams, J.R.

    2012-06-01T23:59:59.000Z

    This chapter provides a comprehensive review of the EPIC model in relation to carbon cycle, greenhouse-gas mitigation, and biofuel applications. From its original capabilities and purpose (i.e., quantify the impacts or erosion on soil productivity), the EPIC model has evolved into a comprehensive terrestrial ecosystem model for simulating with more or less process-level detail many ecosystem processes such as weather, hydrology, plant growth and development, carbon cycle (including erosion), nutrient cycling, greenhouse-gas emissions, and the most complete set of manipulations that can be implemented on a parcel of land (e.g. tillage, harvest, fertilization, irrigation, drainage, liming, burning, pesticide application). The chapter also provides details and examples of the latest efforts in model development such as the coupled carbon-nitrogen model, a microbial denitrification model with feedback to the carbon decomposition model, updates on calculation of ecosystem carbon balances, and carbon emissions from fossil fuels. The chapter has included examples of applications of the EPIC model in soil carbon sequestration, net ecosystem carbon balance, and biofuel studies. Finally, the chapter provides the reader with an update on upcoming improvements in EPIC such as the additions of modules for simulating biochar amendments, sorption of soluble C in subsoil horizons, nitrification including the release of N2O, and the formation and consumption of methane in soils. Completion of these model development activities will render an EPIC model with one of the most complete representation of biogeochemical processes and capable of simulating the dynamic feedback of soils to climate and management in terms not only of transient processes (e.g., soil water content, heterotrophic respiration, N2O emissions) but also of fundamental soil properties (e.g. soil depth, soil organic matter, soil bulk density, water limits).

  20. Modelling air quality impact of a biomass energy power plant in a mountain valley in Central Italy

    E-Print Network [OSTI]

    Curci, Gabriele

    Modelling air quality impact of a biomass energy power plant in a mountain valley in Central Italy in revised form 31 July 2012 Accepted 1 August 2012 Keywords: Biomass energy Air quality CALPUFF NO2 SO2 fuel power plants with those fuelled with modern biomass (IPCC, 2011). However, from an air quality

  1. Modelling the impact of superimposed ice on the mass balance of an Arctic glacier under scenarios of future climate change

    E-Print Network [OSTI]

    ). A consequence of climatic warming in the high Arctic will be an increase in surface melting of glaciers and ice component of the mass accumulation of many glaciers and ice caps in thModelling the impact of superimposed ice on the mass balance of an Arctic glacier under scenarios

  2. Job and Economic Development Impact (JEDI) Model: A User-Friendly Tool to Calculate Economic Impacts from Wind Projects; Preprint

    Wind Powering America (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells, Wisconsin:Deployment Activities Printable80 mPilot ProjectWindJEDIJob and

  3. Examination of Housing Price Impacts on Residential Properties Before and After Superfund Remediation Using Spatial Hedonic Modeling

    E-Print Network [OSTI]

    Mhatre, Pratik Chandrashekhar

    2010-10-12T23:59:59.000Z

    and sociodemographic change after remediation. This study examines the extent and size of the economic impact of Superfund sites on surrounding single-family residential properties before and after remediation in Miami-Dade County and examines trends... in neighborhoods with remedied Superfund sites albeit more so in low housing submarkets than premium submarkets. Spatial hedonic models outperformed traditional OLS models in presenting unbiased efficient parameter estimates, correcting for spatial dependence...

  4. Calibration of an EnergyPlus Building Energy Model to Assess the Impact of Demand Response Measures

    E-Print Network [OSTI]

    Lavigne, K.; Sansregret, S.; Daoud, A.; Leclair, L. A.

    2013-01-01T23:59:59.000Z

    1 Karine Lavigne Simon Sansregret Ahmed DaoudLouis-Alexandre Leclaire CALIBRATION OF AN ENERGYPLUS BUILDING ENERGY MODEL TO ASSESS THE IMPACT OF DEMAND RESPONSE MEASURES ICEBO 2013, Montr?al Groupe ? Technologie2 ICEBO-2013 Contextualization... ICEBO-2013 Groupe ? Technologie Calibrated Results 22 ICEBO-2013 12 Groupe ? Technologie Conclusion 23 ICEBO-2013 > Calibrating model for a demand response objective : Challenging and High Effort > Capturing building and human erratic behaviour...

  5. Florian SEITZ: Atmospheric and oceanic impacts to Earth rotations numerical studies with a dynamic Earth system model

    E-Print Network [OSTI]

    Schuh, Harald

    with a dynamic Earth system model (completed in October 2004) Variations of Earth rotation are caused Earth system model DyMEG has been developed. It is based on the balance of angular momentum

  6. Impact of emissions, chemistry, and climate on atmospheric carbon monoxide : 100-year predictions from a global chemistry-climate model

    E-Print Network [OSTI]

    Wang, Chien.; Prinn, Ronald G.

    The possible trends for atmospheric carbon monoxide in the next 100 yr have been illustrated using a coupled atmospheric chemistry and climate model driven by emissions predicted by a global economic development model. ...

  7. Development of High Resolution Land Surface Parameters for the Community Land Model

    SciTech Connect (OSTI)

    Ke, Yinghai; Leung, Lai-Yung R.; Huang, Maoyi; Coleman, Andre M.; Li, Hongyi; Wigmosta, Mark S.

    2012-11-06T23:59:59.000Z

    There is a growing need for high-resolution land surface parameters as land surface models are being applied at increasingly higher spatial resolution offline as well as in regional and global models. The default land surface parameters for the most recent version of the Community Land Model (i.e. CLM 4.0) are at 0.5° or coarser resolutions, released with the Community Earth System Model (CESM). Plant Functional Types (PFTs), vegetation properties such as Leaf Area Index (LAI), Stem Area Index (SAI), and non-vegetated land covers were developed using remotely sensed datasets retrieved in late 1990’s and the beginning of this century. In this study, we developed new land surface parameters for CLM 4.0, specifically PFTs, LAI, SAI and non-vegetated land cover composition, at 0.05° resolution globally based on the most recent MODIS land cover and improved MODIS LAI products. Compared to the current CLM 4.0 parameters, the new parameters produced a decreased coverage by bare soil and trees, but an increased coverage by shrub, grass, and cropland. The new parameters result in a decrease in global seasonal LAI, with the biggest decrease in boreal forests; however, the new parameters also show a large increase in LAI in tropical forest. Differences between the new and the current parameters are mainly caused by changes in the sources of remotely sensed data and the representation of land cover in the source data. Advantages and disadvantages of each dataset were discussed in order to provide guidance on the use of the data. The new high-resolution land surface parameters have been used in a coupled land-atmosphere model (WRF-CLM) applied to the western U.S. to demonstrate their use in high-resolution modeling. A remapping method from the latitude/longitude grid of the CLM data to the WRF grids with map projection was also demonstrated. Future work will include global offline CLM simulations to examine the impacts of source data resolution and subsequent land parameter changes on simulated land surface processes.

  8. Air/Superfund national technical guidance study series. Development of example procedures for evaluating the air impacts of soil excavation associated with Superfund remedial actions. Final report

    SciTech Connect (OSTI)

    Saunders, G.L.

    1990-07-01T23:59:59.000Z

    The purpose of the project was to identify and define the computation requirements or estimating the air impacts from the remediation of Superfund sites. Two example sites employing soil excavation were selected because they represent a complex emission source. The procedures for the evaluation of the ambient impacts were divided into several subtasks. These included site characterization, selection of remedial alternatives, definition of remedial activities, estimation of emission rates for each remedial activity, determination of ambient concentrations from dispersion modeling, and evaluation of carcinogenic and noncarcinogenic risks based on dispersion modeling results. The calculation of emission rates were used to estimate ambient impacts through dispersion models. The purpose was to outline a set of procedures that could be used, with existing tools, to assist in the evaluation of air-pathway effects.

  9. Jack Rabbit Pretest Shadowplate Drawings For TATB IHE Model Development

    SciTech Connect (OSTI)

    Hart, M M; McDaniel, D W

    2009-07-10T23:59:59.000Z

    The Jack Rabbit Pretest (PT) series consisted of 5 focused hydrodynamic experiments 2021E PT3, PT4, PT5, PT6, and PT7. They were fired in March and April of 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory, Livermore, California. These experiments measured deadzone formation and impulse gradients created during the detonation of TATB based insensitive high explosive. When setting up computer simulations of the Jack Rabbit Pretest series, the modeler or code developer can execute simulations with increasing degrees of refinement using detail found in the shadowplate design. The easiest way to get started is by treating the shadowplate in each experiment as a monolithic homogeneous piece of stainless steel. The simulation of detonation would begin as a point initiation below the center, bottom surface of the shadowplate. The detonation running through the ultrafine TATB booster can be simulated using program burn and then switched over to a reactive flow detonation model as the detonation front crosses the boundary into the main charge LX-17 IHE. A modeler wanting to further refine the simulation and progression of shock through the shadowplate can use the more detailed shadowplate design information presented in this document. The source drawings are included in Appendix A of this document. Their titles and drawing numbers are listed. Each experiment's shadowplate consists of two major components. A 303 stainless steel shape that defines the outer dimensions of shadowplate and a cylindrical 303 stainless steel detonator housing that is located in a closely machined pocket in the shape. The SIMPLE ASSY drawing accurately represents the dimensions of the outer shape, it's machined cylindrical pocket, and detonator body which is treated as a monolithic, homogeneous piece of stainless steel. The detonator body cross section shows an accurately dimensioned void where the slapper flyer barrel, LX-16 (pressed PETN) pellet, and pellet can flyer barrel are located. The FULL ASSY drawing accurately represents the dimensions of the outer shadowplate shape and it's machined pocket. The detonator dimensions and materials are detailed in cross section and exploded view. All diameters, thicknesses, and materials are called out in the drawing. You will notice that the detonator includes a multilayer slapper assembly with two layers of electrically insulating Kapton sandwiching the copper foil bridge circuit. The Kapton insulated circuit is sandwiched between two thin stainless steel sheets. This slapper assembly is secured to the detonator body with two screws. There is a 0.25 mm gap between the slapper assembly and the outer shadowplate shape. The stainless steel detonator body contains an off-center titanium wheel. This titanium wheel is secured to the detonator body with one screw and two pins to maintain position and orientation of the pellet can assembly in the center of the detonator body. The titanium wheel contains a tantalum/tungsten washer and pellet can assembly. The pellet can assembly consists of a pressed LX-16 initiator pellet contained in an extruded aluminum foil can. It may be useful for the modeler to include some of the details of the shadowplate and detonator design to further refine simulations of the Jack Rabbit Pretest experiments. These details may be relevant to the progression of shock originating from the PETN initiation pellet and ultrafine TATB booster that propagates through the shadowplate.

  10. Development and validation of instantaneous risk model in nuclear power plant's risk monitor

    SciTech Connect (OSTI)

    Wang, J.; Li, Y.; Wang, F.; Wang, J.; Hu, L. [Inst. of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, Anhui, 230031 (China); School of Nuclear Science and Technology, Univ. of Science and Technology of China, Hefei, Anhui, 230031 (China)

    2012-07-01T23:59:59.000Z

    The instantaneous risk model is the fundament of calculation and analysis in a risk monitor. This study focused on the development and validation of an instantaneous risk model. Therefore the principles converting from the baseline risk model to the instantaneous risk model were studied and separated trains' failure modes modeling method was developed. The development and validation process in an operating nuclear power plant's risk monitor were also introduced. Correctness of instantaneous risk model and rationality of converting method were demonstrated by comparison with the result of baseline risk model. (authors)

  11. EMIT: explicit modeling of interactive-engagement techniques for physics graduate teaching assistants and the impact on instruction and student performance in calculus-based physics

    E-Print Network [OSTI]

    Ezrailson, Cathy Mariotti

    2005-02-17T23:59:59.000Z

    This study measures the effect of a model of explicit instruction (EMIT) on the: 1) physics graduate teaching assistants? adherence to reformed teaching methods, 2) impact of the instructional model on GTAs? beliefs about the nature of physics...

  12. Scale-Dependent Fracture-Matrix Interactions and Their Impact on Radionuclide Transport: Development of efficient particle-tracking methods

    SciTech Connect (OSTI)

    Rajaram, Harihar [University of Colorado, Boulder; Brutz, Michael [University of Colorado, Boulder; Klein, Dylan R [University of Colorado, Boulder; Mallikamas, Wasin [University of Colorado, Boulder

    2014-09-18T23:59:59.000Z

    Matrix Diffusion and Adsorption within a rock matrix are important mechanisms for retarding transport of radionuclides in fractured rock. Due to computational limitations and difficulties in characterizing complex subsurface systems, diffusive exchange between a fracture network and surrounding rock matrix is often modeled using simplified conceptual representations. There is significant uncertainty in “effective” parameters used in these models, such as the “effective matrix diffusivity”. Often, these parameters are estimated by fitting sparse breakthrough data, and estimated values fall outside meaningful ranges, because simplified interpretive models do not consider complex three-dimensional flow. There is limited understanding of the relationship between the effective parameters and rock mass characteristics including network structure and matrix properties. There is also evidence for an apparent scale-dependence in “effective matrix diffusion” coefficients. These observations raise questions on whether fracture-matrix interaction parameters estimated from small-scale tracer tests can be used for predicting radionuclide fate and transport at the scale of DOE field sites. High-resolution three-dimensional Discrete-Fracture-Network-Matrix (DFNM) models based on well-defined local scale transport equations can help to address some of these questions. Due to tremendous advances in computational technology over the last 10 years, DFNM modeling in relatively large domains is now feasible. The overarching objective of our research is to use DFNM modeling to improve fundamental understanding of how effective parameters in conceptual models are related to fracture network structure and matrix properties. An advanced three-dimensional DFNM model is being developed, which combines upscaled particle-tracking algorithms for fracture-matrix interaction and a parallel fracture-network flow simulator. The particle-tracking algorithms allow complexity in flow fields at different scales, and track transport across fracture-matrix interfaces based on rigorous local approximations to the transport equations. This modeling approach can incorporate aperture variability, multi-scale preferential flow and matrix heterogeneity. We developed efficient particle-tracking methods for handling matrix diffusion and adsorption on fracture walls and demonstrated their efficiency for use within the context of large-scale complex fracture network models with variability in apertures across a network of fractures and within individual fractures.

  13. Cloud speed impact on solar variability scaling â?? Application to the wavelet variability model

    E-Print Network [OSTI]

    Lave, Matthew; Kleissl, Jan

    2013-01-01T23:59:59.000Z

    Kleissl, J. , 2013. Deriving cloud velocity from an array ofCloud Speed Impact on Solar Variability Scaling -this work, we determine from cloud speeds. Cloud simulator

  14. A model-based systems engineering framework for concept development

    E-Print Network [OSTI]

    London, Brian (Brian N.)

    2012-01-01T23:59:59.000Z

    The development of increasingly complex, innovative systems under greater constraints has been the trend over the past several decades. In order to be successful, organizations must develop products that meet customer needs ...

  15. Modeled Impacts of Cover Crops and Vegetative Barriers on Corn Stover Availability and Soil Quality

    SciTech Connect (OSTI)

    Ian J. Bonner; David J. Muth Jr.; Joshua B. Koch; Douglas L. Karlen

    2014-06-01T23:59:59.000Z

    Environmentally benign, economically viable, and socially acceptable agronomic strategies are needed to launch a sustainable lignocellulosic biofuel industry. Our objective was to demonstrate a landscape planning process that can ensure adequate supplies of corn (Zea mays L.) stover feedstock while protecting and improving soil quality. The Landscape Environmental Assessment Framework (LEAF) was used to develop land use strategies that were then scaled up for five U.S. Corn Belt states (Nebraska, Iowa, Illinois, Indiana, and Minnesota) to illustrate the impact that could be achieved. Our results show an annual sustainable stover supply of 194 million Mg without exceeding soil erosion T values or depleting soil organic carbon [i.e., soil conditioning index (SCI)?>?0] when no-till, winter cover crop, and vegetative barriers were incorporated into the landscape. A second, more rigorous conservation target was set to enhance soil quality while sustainably harvesting stover. By requiring erosion to be <1/2 T and the SCI-organic matter (OM) subfactor to be >?0, the annual sustainable quantity of harvestable stover dropped to148 million Mg. Examining removal rates by state and soil resource showed that soil capability class and slope generally determined the effectiveness of the three conservation practices and the resulting sustainable harvest rate. This emphasizes that sustainable biomass harvest must be based on subfield management decisions to ensure soil resources are conserved or enhanced, while providing sufficient biomass feedstock to support the economic growth of bioenergy enterprises.

  16. Developing an alternative model for travel decision-making

    E-Print Network [OSTI]

    Hung, Kam

    2009-05-15T23:59:59.000Z

    This study proposes an alternative travel decision making model and situates its arguments in the Motivation-Opportunity-Ability (MOA) theoretical construct. The MOA model suggests that motivation, opportunity, and ability are major factors...

  17. Monitoring and Modeling Fluid Flow in a Developing EGS Reservoir

    Broader source: Energy.gov [DOE]

    Project objectives: Better understand and model fluid injection into a tight reservoir on the edges of a hydrothermal field. Use seismic data to constrain geomechanical/hydrologic/thermal model of reservoir.

  18. Impact of Agricultural Practice on Regional Climate in a CoupledLand Surface Mesoscale Model

    SciTech Connect (OSTI)

    Cooley, H.S.; Riley, W.J.; Torn, M.S.; He, Y.

    2004-07-01T23:59:59.000Z

    The land surface has been shown to form strong feedbacks with climate due to linkages between atmospheric conditions and terrestrial ecosystem exchanges of energy, momentum, water, and trace gases. Although often ignored in modeling studies, land management itself may form significant feedbacks. Because crops are harvested earlier under drier conditions, regional air temperature, precipitation, and soil moisture, for example, affect harvest timing, particularly of rain-fed crops. This removal of vegetation alters the land surface characteristics and may, in turn, affect regional climate. We applied a coupled climate(MM5) and land-surface (LSM1) model to examine the effects of early and late winter wheat harvest on regional climate in the Department of Energy Atmospheric Radiation Measurement (ARM) Climate Research Facility in the Southern Great Plains, where winter wheat accounts for 20 percent of the land area. Within the winter wheat region, simulated 2 m air temperature was 1.3 C warmer in the Early Harvest scenario at mid-day averaged over the two weeks following harvest. Soils in the harvested area were drier and warmer in the top 10 cm and wetter in the 10-20 cm layer. Midday soils were 2.5 C warmer in the harvested area at mid-day averaged over the two weeks following harvest. Harvest also dramatically altered latent and sensible heat fluxes. Although differences between scenarios diminished once both scenarios were harvested, the short-term impacts of land management on climate were comparable to those from land cover change demonstrated in other studies.

  19. Impact of Aerosols on Tropical Cyclones: An Investigation Using Convection-permitting Model Simulation

    SciTech Connect (OSTI)

    Hazra, Anupam; Mukhopadhyay, P.; Taraphdar, Sourav; Chen, J. P.; Cotton, William R.

    2013-07-16T23:59:59.000Z

    The role of aerosols effect on two tropical cyclones over Bay of Bengal are investigated using a convection permitting model with two-moment mixed-phase bulk cloud microphysics scheme. The simulation results show the role of aerosol on the microphysical and dynamical properties of cloud and bring out the change in efficiency of the clouds in producing precipitation. The tracks of the TCs are hardly affected by the changing aerosol types, but the intensity exhibits significant sensitivity due to the change in aerosol contribution. It is also clearly seen from the analyses that higher heating in the middle troposphere within the cyclone center is in response to latent heat release as a consequence of greater graupel formation. Greater heating in the middle level is particularly noticeable for the clean aerosol regime which causes enhanced divergence in the upper level which, in turn, forces the lower level convergence. As a result, the cleaner aerosol perturbation is more unstable within the cyclone core and produces a more intense cyclone as compared to other two perturbations of aerosol. All these studies show the robustness of the concept of TC weakening by storm ingestion of high concentrations of CCN. The consistency of these model results gives us confidence in stating there is a high probability that ingestion of high CCN concentrations in a TC will lead to weakening of the storm but has little impact on storm direction. Moreover, as pollution is increasing over the Indian sub-continent, this study suggests pollution may be weakening TCs over the Bay of Bengal.

  20. Developing Fully Coupled Subchannel Model in RELAP-7

    SciTech Connect (OSTI)

    Hongbin Zhang; Ling Zou; Haihua Zhao; Richard Martineau

    2014-09-01T23:59:59.000Z

    This is a DOE milestone report documenting the implementation of the subchannel model into the RELAP-7 code.

  1. Aspect-Oriented Model Development at Different Levels of Abstraction

    E-Print Network [OSTI]

    - straction. The approaches are different with respect to the phases of the development lifecycle they target reusability, and simplify evolution. Aspect-oriented software development (AOSD) takes traditional support development lifecycle and reuse of different hal-00585301,version1-12Apr2011 Author manuscript, published

  2. Understanding and Developing Role-Based Administrative Models

    E-Print Network [OSTI]

    Dent, Alexander W.

    to security policy and personnel. An administrative model defines the rules that control the state changes to an access control model and the data structures it defines. We present a powerful framework for describing their respective properties. We also suggest some improvements to both models. 1 Introduction An access control

  3. Using Wild Oat Growth and Development to Develop a Predictive Model for Spring Wheat Growers and Consultants

    E-Print Network [OSTI]

    Minnesota, University of

    Using Wild Oat Growth and Development to Develop a Predictive Model for Spring Wheat Growers Introduction: Wild oat has become an invasive and economically important weedy species in most cereal growing% of the wheat and 72% of barley acres seeded in northwestern Minnesota are infested with wild oat. In the past

  4. What is the importance of climate model bias when projecting the impacts of climate change on land surface processes?

    SciTech Connect (OSTI)

    Liu, M. L.; Rajagopalan, K.; Chung, S. H.; Jiang, X.; Harrison, J. H.; Nergui, T.; Guenther, Alex B.; Miller, C.; Reyes, J.; Tague, C. L.; Choate, J. S.; Salathe, E.; Stockle, Claudio O.; Adam, J. C.

    2014-05-16T23:59:59.000Z

    Regional climate change impact (CCI) studies have widely involved downscaling and bias-correcting (BC) Global Climate Model (GCM)-projected climate for driving land surface models. However, BC may cause uncertainties in projecting hydrologic and biogeochemical responses to future climate due to the impaired spatiotemporal covariance of climate variables and a breakdown of physical conservation principles. Here we quantify the impact of BC on simulated climate-driven changes in water variables(evapotranspiration, ET; runoff; snow water equivalent, SWE; and water demand for irrigation), crop yield, biogenic volatile organic compounds (BVOC), nitric oxide (NO) emissions, and dissolved inorganic nitrogen (DIN) export over the Pacific Northwest (PNW) Region. We also quantify the impacts on net primary production (NPP) over a small watershed in the region (HJ Andrews). Simulation results from the coupled ECHAM5/MPI-OM model with A1B emission scenario were firstly dynamically downscaled to 12 km resolutions with WRF model. Then a quantile mapping based statistical downscaling model was used to downscale them into 1/16th degree resolution daily climate data over historical and future periods. Two series climate data were generated according to the option of bias-correction (i.e. with bias-correction (BC) and without bias-correction, NBC). Impact models were then applied to estimate hydrologic and biogeochemical responses to both BC and NBC meteorological datasets. These im20 pact models include a macro-scale hydrologic model (VIC), a coupled cropping system model (VIC-CropSyst), an ecohydrologic model (RHESSys), a biogenic emissions model (MEGAN), and a nutrient export model (Global-NEWS). Results demonstrate that the BC and NBC climate data provide consistent estimates of the climate-driven changes in water fluxes (ET, runoff, and water demand), VOCs (isoprene and monoterpenes) and NO emissions, mean crop yield, and river DIN export over the PNW domain. However, significant differences rise from projected SWE, crop yield from dry lands, and HJ Andrews’s ET between BC and NBC data. Even though BC post-processing has no significant impacts on most of the studied variables when taking PNW as a whole, their effects have large spatial variations and some local areas are substantially influenced. In addition, there are months during which BC and NBC post-processing produces significant differences in projected changes, such as summer runoff. Factor-controlled simulations indicate that BC post-processing of precipitation and temperature both substantially contribute to these differences at region scales. We conclude that there are trade-offs between using BC climate data for offline CCI studies vs. direct modeled climate data. These trade-offs should be considered when designing integrated modeling frameworks for specific applications; e.g., BC may be more important when considering impacts on reservoir operations in mountainous watersheds than when investigating impacts on biogenic emissions and air quality (where VOCs are a primary indicator).

  5. New Model Demonstrates Offshore Wind Industry's Job Growth Potential...

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

    has developed a tool to estimate jobs and other economic impacts associated with offshore wind development in the United States. The modeling tool, which illustrates the potential...

  6. Influence of climate model biases and daily-scale temperature and precipitation events on hydrological impacts assessment: A case study of the United States

    SciTech Connect (OSTI)

    Ashfaq, Moetasim [ORNL; Bowling, Laura C. [Purdue University; Cherkauer, Keith [Purdue University; Pal, Jeremy [Loyola University; Diffenbaugh, Noah [Stanford University

    2010-01-01T23:59:59.000Z

    The Intergovernmental Panel on Climate Change's Fourth Assessment Report concludes that climate change is now unequivocal, and associated increases in evaporation and atmospheric water content could intensify the hydrological cycle. However, the biases and coarse spatial resolution of global climate models limit their usefulness in hydrological impact assessment. In order to reduce these limitations, we use a high-resolution regional climate model (RegCM3) to drive a hydrological model (variable infiltration capacity) for the full contiguous United States. The simulations cover 1961-1990 in the historic period and 2071-2100 in the future (A2) period. A quantile-based bias correction technique is applied to the times series of RegCM3-simulated precipitation and temperature. Our results show that biases in the RegCM3 fields not only affect the magnitude of hydrometeorological variables in the baseline hydrological simulation, but they also affect the response of hydrological variables to projected future anthropogenic increases in greenhouse forcing. Further, we find that changes in the intensity and occurrence of severe wet and hot events are critical in determining the sign of hydrologic change. These results have important implications for the assessment of potential future hydrologic changes, as well as for developing approaches for quantitative impacts assessment.

  7. Calculating Impacts of Energy Standards on Energy Demand in U.S. Buildings under Uncertainty with an Integrated Assessment Model: Technical Background Data

    SciTech Connect (OSTI)

    Scott, Michael J.; Daly, Don S.; Hathaway, John E.; Lansing, Carina S.; Liu, Ying; McJeon, Haewon C.; Moss, Richard H.; Patel, Pralit L.; Peterson, Marty J.; Rice, Jennie S.; Zhou, Yuyu

    2014-12-06T23:59:59.000Z

    This report presents data and assumptions employed in an application of PNNL’s Global Change Assessment Model with a newly-developed Monte Carlo analysis capability. The model is used to analyze the impacts of more aggressive U.S. residential and commercial building-energy codes and equipment standards on energy consumption and energy service costs at the state level, explicitly recognizing uncertainty in technology effectiveness and cost, socioeconomics, presence or absence of carbon prices, and climate impacts on energy demand. The report provides a summary of how residential and commercial buildings are modeled, together with assumptions made for the distributions of state–level population, Gross Domestic Product (GDP) per worker, efficiency and cost of residential and commercial energy equipment by end use, and efficiency and cost of residential and commercial building shells. The cost and performance of equipment and of building shells are reported separately for current building and equipment efficiency standards and for more aggressive standards. The report also details assumptions concerning future improvements brought about by projected trends in technology.

  8. Modeling coal combustion behavior in an ironmaking blast furnace raceway: model development and applications

    SciTech Connect (OSTI)

    Maldonado, D.; Austin, P.R.; Zulli, P.; Guo B. [BlueScope Steel Research Laboratories, Port Kembla, NSW (Australia)

    2009-03-15T23:59:59.000Z

    A numerical model has been developed and validated for the investigation of coal combustion phenomena under blast furnace operating conditions. The model is fully three-dimensional, with a broad capacity to analyze significant operational and equipment design changes. The model was used in a number of studies, including: Effect of cooling gas type in coaxial lance arrangements. It was found that oxygen cooling improves coal burnout by 7% compared with natural gas cooling under conditions that have the same amount of oxygen enrichment in the hot blast. Effect of coal particle size distribution. It was found that during two similar periods of operation at Port Kembla's BF6, a difference in PCI capability could be attributed to the difference in coal size distribution. Effect of longer tuyeres. Longer tuyeres were installed at Port Kembla's BF5, leading to its reline scheduled for March 2009. The model predicted an increase in blast velocity at the tuyere nose due to the combustion of volatiles within the tuyere, with implications for tuyere pressure drop and PCI capability. Effect of lance tip geometry. A number of alternate designs were studied, with the best-performing designs promoting the dispersion of the coal particles. It was also found that the base case design promoted size segregation of the coal particles, forcing smaller coal particles to one side of the plume, leaving larger coal particles on the other side. 11 refs., 15 figs., 4 tabs.

  9. Development of a Data Driven Dynamic Model for a Plasma Etching Reactor Michael Nikolaoua)

    E-Print Network [OSTI]

    Nikolaou, Michael

    1 Development of a Data Driven Dynamic Model for a Plasma Etching Reactor Michael Nikolaoua for identification and validation of an empirical model for a helicon plasma reactor, on the basis of experimental manufacturing processes such as plasma etching, accurate models based on first principles may be developed

  10. The Riacho Fundo water basin: a case study for qualitative modelling sustainable development

    E-Print Network [OSTI]

    Bailey-Kellogg, Chris

    of sustainable development related problems. The models aim at supporting stakeholders to understand the systemsThe Riacho Fundo water basin: a case study for qualitative modelling sustainable development Paulo presents a working plan for modelling relevant aspects of sustainability issues in the Riacho Fundo water

  11. Developing a Model for Planning and Controlling Production in Small Sized Building Firms Proceedings IGLC `98

    E-Print Network [OSTI]

    Tommelein, Iris D.

    Developing a Model for Planning and Controlling Production in Small Sized Building Firms Proceedings IGLC `98 DEVELOPING A MODEL FOR PLANNING AND CONTROLLING PRODUCTION IN SMALL SIZED BUILDING FIRMS process of a model for planning and controlling production in small sized building companies, as well

  12. Predicting dissolution patterns in variable aperture fractures: 1. Development and evaluation of an enhanced depth-averaged computational model

    SciTech Connect (OSTI)

    Detwiler, R L; Rajaram, H

    2006-04-21T23:59:59.000Z

    Water-rock interactions within variable-aperture fractures can lead to dissolution of fracture surfaces and local alteration of fracture apertures, potentially transforming the transport properties of the fracture over time. Because fractures often provide dominant pathways for subsurface flow and transport, developing models that effectively quantify the role of dissolution on changing transport properties over a range of scales is critical to understanding potential impacts of natural and anthropogenic processes. Dissolution of fracture surfaces is controlled by surface-reaction kinetics and transport of reactants and products to and from the fracture surfaces. We present development and evaluation of a depth-averaged model of fracture flow and reactive transport that explicitly calculates local dissolution-induced alterations in fracture apertures. The model incorporates an effective mass transfer relationship that implicitly represents the transition from reaction-limited dissolution to transport-limited dissolution. We evaluate the model through direct comparison to previously reported physical experiments in transparent analog fractures fabricated by mating an inert, transparent rough surface with a smooth single crystal of potassium dihydrogen phosphate (KDP), which allowed direct measurement of fracture aperture during dissolution experiments using well-established light transmission techniques [Detwiler, et al., 2003]. Comparison of experiments and simulations at different flow rates demonstrate the relative impact of the dimensionless Peclet and Damkohler numbers on fracture dissolution and the ability of the computational model to simulate dissolution. Despite some discrepancies in the small-scale details of dissolution patterns, the simulations predict the evolution of large-scale features quite well for the different experimental conditions. This suggests that our depth-averaged approach to simulating fracture dissolution provides a useful approach for extending laboratory results that are often limited in scale to scales that are more representative of geologic processes of interest.

  13. Utilizing CLASIC observations and multiscale models to study the impact of improved Land surface representation on modeling cloud- convection

    SciTech Connect (OSTI)

    Niyogi, Devdutta S. [Purdue

    2013-06-07T23:59:59.000Z

    The CLASIC experiment was conducted over the US southern great plains (SGP) in June 2007 with an objective to lead an enhanced understanding of the cumulus convection particularly as it relates to land surface conditions. This project was design to help assist with understanding the overall improvement of land atmosphere convection initiation representation of which is important for global and regional models. The study helped address one of the critical documented deficiency in the models central to the ARM objectives for cumulus convection initiation and particularly under summer time conditions. This project was guided by the scientific question building on the CLASIC theme questions: What is the effect of improved land surface representation on the ability of coupled models to simulate cumulus and convection initiation? The focus was on the US Southern Great Plains region. Since the CLASIC period was anomalously wet the strategy has been to use other periods and domains to develop the comparative assessment for the CLASIC data period, and to understand the mechanisms of the anomalous wet conditions on the tropical systems and convection over land. The data periods include the IHOP 2002 field experiment that was over roughly same domain as the CLASIC in the SGP, and some of the DOE funded Ameriflux datasets.

  14. Developing the PAGE2002 Model with Endogenous Technical Change

    E-Print Network [OSTI]

    Alberth, Stephan; Hope, Chris

    and fusion), and Carbon Capture and Sequestration (CCS). The first of these, renewables, are chosen as they represent the only known final solution to the problem of CO2 abatement without necessarily creating other future environmental problems... 2002 model’s carbon cycle which limits the ocean’s carbon sequestration ability as the temperature rises (Hope, 2004). This result also applies to the 500 and 550 ppm stabilisation scenarios. Furthermore, due to the stochastic nature of the model...

  15. DEVELOPMENT OF AN FDTD TOOL FOR MODELING OF DISPERSIVE MEDIA

    E-Print Network [OSTI]

    Koledintseva, Marina Y.

    dielectric spacer with dimensions of 60x10x0.6 mm3 . The EZ-FDTD model geometry is shown in Figure 4. Two. This is a structure with two ports on a double-sided copper clad FR-4 dielectric plate having the dimensions 200x150x1 copper plates were modeled as PEC, and the spacer was modeled as the Lorentzian dielectric

  16. Development of Model Filtration Media for Investigating Size...

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

    Efficiency A novel method for fabricating custom porous filtration media for emission control has been developed. Controlled pore sizes could be used to optimize...

  17. advanced development model: Topics by E-print Network

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

    . . . . 18 3.4.1 Heat Exchanger - Code description . . . . . . . . . . . . . . . 18 3.4.2 Simulation ResultsADVANCED POWER PLANT MODELING WITH APPLICATIONS TO THE ADVANCED BOILING...

  18. Development of Chemical Model to Predict the Interactions between...

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

    large domain size and multiple realizations. * Model calibration and verification (End of project) - We will collect data from literature, extrapolate existing data and conduct...

  19. Development of Surrogate Reservoir Models (SRM) For Fast Track

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    (minimize left behind oil). #12;13 SPE 99667 Shahab D. Mohaghegh, Ph.D. (WVU & ISI) Very Complex Geology #12 Dhabi Company for Onshore Oil Operations - ADCO SPE 99667 SPE Intelligent Energy Conference, Amsterdam Reservoir Model (SRM) based on a Full Field Model (FFM) for a giant oil field in the Middle East. #12;4 SPE

  20. APPLYING ACTIVITY PATTERNS FOR DEVELOPING AN INTELLIGENT PROCESS MODELING TOOL

    E-Print Network [OSTI]

    Ulm, Universität

    attracting the interest of both BPM researchers and BPM tool vendors. Frequently, process models can Process Management (BPM) tools as well as emerging patterns for process modeling and change. BPM processes of an enterprise. Moreover, through Web service technology, the benefits of BPM can be created

  1. Development and Applications of the Community Ice Sheet Model

    SciTech Connect (OSTI)

    Hoffman, Matthew J. [Los Alamos National Laboratory; Lipscomb, William H. [Los Alamos National Laboratory; Price, Stephen F. [Los Alamos National Laboratory; Johnson, Jesse [University of Montana; Sacks, William [National Center for Atmospheric Research

    2012-07-23T23:59:59.000Z

    The initial goals of the project are: (1) create a model for land ice that includes relevant and necessary dynamics, physical processes, and couplings; and (2) apply that model to say something more substantial about SLR in Lme for IPCC AR5 (AR6?).

  2. Development and Simulation of Mathematical Modelling of Hydraulic Turbine

    E-Print Network [OSTI]

    Gagan Singh; D. S. Chauhan

    Abstract- Power system performance is affected by dynamic characteristics of hydraulic governor-turbines during and following any disturbance, such as occurrence of a fault, loss of a transmission line or a rapid change of load. Accurate modelling of hydraulic System is essential to characterize and diagnose the system response. In this article the mathematical modeling of hydraulic turbine is presented. The model is capable to implement the digital systems for monitoring and control replacing the conventional control systems for power, frequency and voltage. This paper presents the possibilities of modeling and simulation of the hydro power plants and performs an analysis of different control structures and algorithms. Key words: mathematical modeling, simulation, hydraulic turbine. I.

  3. Assessment of Tidal Energy Removal Impacts on Physical Systems: Development of MHK Module and Analysis of Effects on Hydrodynamics

    SciTech Connect (OSTI)

    Yang, Zhaoqing; Wang, Taiping

    2011-09-01T23:59:59.000Z

    In this report we describe (1) the development, test, and validation of the marine hydrokinetic energy scheme in a three-dimensional coastal ocean model (FVCOM); and (2) the sensitivity analysis of effects of marine hydrokinetic energy configurations on power extraction and volume flux in a coastal bay. Submittal of this report completes the work on Task 2.1.2, Effects of Physical Systems, Subtask 2.1.2.1, Hydrodynamics and Subtask 2.1.2.3, Screening Analysis, for fiscal year 2011 of the Environmental Effects of Marine and Hydrokinetic Energy project.

  4. Developing daily precipitation scenarios for climate change impact studies in the Guadiana and theTejo basins Hydrol. Earth Syst. Sci., 11(1), 11611173, 2007

    E-Print Network [OSTI]

    Boyer, Edmond

    @agr.gc.ca Abstract Hydrological models to evaluate the impacts of climate change in the water resources sector or changed climate. Furthermore, management of the water resources of these trans-boundary international a climate change scenario and, in the case of the Tejo, on municipal water supply for Lisbon. Future daily

  5. Development of models for series and parallel fan variable air volume terminal units

    E-Print Network [OSTI]

    Furr, James C., Jr

    2007-09-17T23:59:59.000Z

    Empirical models of airflow output and power consumption were developed for series and parallel fan powered variable air volume terminal units at typical design pressure conditions. A testing procedure and experimental setup were developed to test...

  6. Model documentation natural gas transmission and distribution model (NGTDM) of the national energy modeling system. Volume II: Model developer`s report

    SciTech Connect (OSTI)

    Not Available

    1995-01-03T23:59:59.000Z

    To partially fulfill the requirements for {open_quotes}Model Acceptance{close_quotes} as stipulated in EIA Standard 91-01-01 (effective February 3, 1991), the Office of Integrated Analysis and Forecasting has conducted tests of the Natural Gas Transmission and Distribution Model (NGTDM) for the specific purpose of validating the forecasting model. This volume of the model documentation presents the results of {open_quotes}one-at-a-time{close_quotes} sensitivity tests conducted in support of this validation effort. The test results are presented in the following forms: (1) Tables of important model outputs for the years 2000 and 2010 are presented with respect to change in each input from the reference case; (2) Tables of percent changes from base case results for the years 2000 and 2010 are presented for important model outputs; (3) Tables of conditional sensitivities (percent change in output/percent change in input) for the years 2000 and 2010 are presented for important model outputs; (4) Finally, graphs presenting the percent change from base case results for each year of the forecast period are presented for selected key outputs. To conduct the sensitivity tests, two main assumptions are made in order to test the performance characteristics of the model itself and facilitate the understanding of the effects of the changes in the key input variables to the model on the selected key output variables: (1) responses to the amount demanded do not occur since there are no feedbacks of inputs from other NEMS models in the stand-alone NGTDM run. (2) All the export and import quantities from and to Canada and Mexico, and liquefied natural gas (LNG) imports and exports are held fixed (i.e., there are no changes in imports and exports between the reference case and the sensitivity cases) throughout the forecast period.

  7. Electric and Magnetic Fields (EMF) RAPID Engineering Program, Project 7: Development of Field Exposure Models

    SciTech Connect (OSTI)

    Bracken, T.D.; Rankin, R.F.; Wiley, J.A.

    1999-05-01T23:59:59.000Z

    The purpose of this project was to develop a conceptual model for estimating magnetic field (EMF) personal exposure (PE) of individuals or groups and construct a working model using existing data.

  8. Oxidation kinetics of methylphosphonic acid in supercritical water : experimental measurements and model development

    E-Print Network [OSTI]

    Sullivan, Patricia A. (Patricia Ann), 1978-

    2004-01-01T23:59:59.000Z

    (cont.) at well-defined operating conditions and to develop. both microscopic and macroscopic models, ranging from regressed global models to an elementary reaction mechanism, to quantify MPA oxidation kinetics in supercritical ...

  9. Development of a Hydraulic Manipulator Servoactuator Model: Simulation and Experimental Validation

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    Development of a Hydraulic Manipulator Servoactuator Model: Simulation and Experimental Validation Abstract In this paper, modelling and identification of a hydraulic servoactuator system is presented, leakage, and load dynamics. System parameters are identified based on a high-performance hydraulic

  10. Development and analysis of a simple grey-box model of central sleep apnea

    E-Print Network [OSTI]

    Kazerani, Ali

    2013-01-01T23:59:59.000Z

    In this thesis, we develop and analyze a simple grey-box model that describes the pathophysiology of central sleep apnea (CSA). We construct our model following a thorough survey of published approaches. Special attention ...

  11. Managed Evolution of a Model Driven Development Approach to Software-based Solutions

    E-Print Network [OSTI]

    Bieman, James M.

    Driven Architecture (MDA) initiative from the Object Management Group (OMG) is a well-known example of model-based development as framed by the Model Driven Architecture (MDA) [MDA2001]. The MDA advocates

  12. Development of a Heat Transfer Model for the Integrated Facade Heating

    E-Print Network [OSTI]

    Gong, X.; Archer, D. H.; Claridge, D. E.

    2007-01-01T23:59:59.000Z

    the heat transfer process of facade heating (mullion radiators) in a pilot research project in Pittsburgh, PA. The heat transfer model for facade heating is developed and verified by measured data. The comparison shows that the heat transfer model predicts...

  13. Development of a Heat Transfer Model for the Integrated Facade Heating 

    E-Print Network [OSTI]

    Gong, X.; Archer, D. H.; Claridge, D. E.

    2007-01-01T23:59:59.000Z

    the heat transfer process of facade heating (mullion radiators) in a pilot research project in Pittsburgh, PA. The heat transfer model for facade heating is developed and verified by measured data. The comparison shows that the heat transfer model predicts...

  14. Development of Cell/Pack Level Models for Automotive Li-Ion Batteries...

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

    CellPack Level Models for Automotive Li-Ion Batteries with Experimental Validation Development of CellPack Level Models for Automotive Li-Ion Batteries with Experimental...

  15. Model Refinement Needs A model developed by Peters and Marmorek (2003) will be used to generate predictions for

    E-Print Network [OSTI]

    449 Model Refinement Needs A model developed by Peters and Marmorek (2003) will be used to generate primarily an energy sink or primarily a source of food? More information is needed as to interactions predictions for comparison with observed variations in kokanee production. As with most models

  16. Study of the potential health and environmental impacts from the development of liquid-dominated geothermal resources

    SciTech Connect (OSTI)

    Williams, J.M. (ed.)

    1982-09-01T23:59:59.000Z

    This document describes seven programs to provide scientific input, understanding, and forecasting capability for hydrothermal energy areas needing resolution. The three major areas addressed are (1) the impacts on living components of the aqueous and terrestrial ecosystems, (2) the impacts on the quality of the abiotic environment itself, and (3) the techniques needed to measure releases from hydrothermal activities.

  17. Development of a finite element model of decompressive craniectomy

    E-Print Network [OSTI]

    Fletcher, Tim L.; Kolias, Angelos G.; Hutchinson, Peter J. A.; Sutcliffe, Michael P. F.

    2014-07-15T23:59:59.000Z

    would be lost. One aspect that needs to be considered carefully is the type of material model required. In decompressive craniectomy there is a hybrid of confined and unconfined loading, which means that conclusions drawn on appropriate material models... Neurology 9(7): 405–15. 10. Elkin BS, Morrison B (2007) Region-specific tolerance criteria for the living brain. Stapp Car Crash Journal 51: 127–38. 11. Miller K, Wittek A, Joldes G, Horton A, Dutta-Roy T, et al. (2010) Modelling brain deformations...

  18. Capturing the Impact of Fuel Price on Jet Aircraft Operating Costs with Engineering and Econometric Models

    E-Print Network [OSTI]

    Smirti Ryerson, Megan; Hansen, Mark

    2009-01-01T23:59:59.000Z

    with Engineering and Econometric Models Megan Smirti RyersonCosts with Engineering and Econometric Models Megan Smirtiforces. To this end, an econometric operating cost model (

  19. Feedstock Quality Factor Calibration and Data Model Development

    SciTech Connect (OSTI)

    Richard D. Boardman; Tyler L. Westover; Garold L. Gresham

    2010-05-01T23:59:59.000Z

    The goal of the feedstock assembly operation is to deliver uniform, quality-assured feedstock materials that will enhance downstream system performance by avoiding problems in the conversion equipment. In order to achieve this goal, there is a need for rapid screening tools and methodologies for assessing the thermochemical quality characteristics of biomass feedstock through the assembly process. Laser-induced breakdown spectroscopy (LIBS) has been identified as potential technique that could allow rapid elemental analyses of the inorganic content of biomass feedstocks; and consequently, would complement the carbohydrate data provided by near-infrared spectrometry (NIRS). These constituents, including Si, K, Ca, Na, S, P, Cl, Mg, Fe and Al, create a number of downstream problems in thermochemical processes. In particular, they reduce the energy content of the feedstock, influence reaction pathways, contribute to fouling and corrosion within systems, poison catalysts, and impact waste streams.

  20. Development of First Principles Capacity Fade Model for Li-Ion Cells

    E-Print Network [OSTI]

    Popov, Branko N.

    into a lithium-ion battery model. The model explains the self-discharge process occurring in Li-ion cells processes in lithium-ion batteries may cause a number of undesirable effects leading to capacity loss.3 with the existing Li- ion intercalation model. Model Development The side reaction of general interest in lithium-ion