National Library of Energy BETA

Sample records for biomass scenario model

  1. Biomass Scenario Model

    SciTech Connect (OSTI)

    2015-09-01

    The Biomass Scenario Model (BSM) is a unique, carefully validated, state-of-the-art dynamic model of the domestic biofuels supply chain which explicitly focuses on policy issues, their feasibility, and potential side effects. It integrates resource availability, physical/technological/economic constraints, behavior, and policy. The model uses a system dynamics simulation (not optimization) to model dynamic interactions across the supply chain.

  2. Biomass Scenario Model Scenario Library: Definitions, Construction...

    Office of Scientific and Technical Information (OSTI)

    S. 09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES; 29 ENERGY PLANNING, POLICY AND ECONOMY BIOMASS; BIOFUEL; BSM; SYSTEM DYNAMICS; BIOFUEL INCENTIVES; SCENARIOS; Bioenergy;...

  3. Biomass Scenario Model

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

    bio-oil techno- economic analyses o Aviation biofuels and the European Union emissions trading system (ETS) o Light-duty-vehicle (LDV) ethanol-demand scenario analysis o Long...

  4. Biomass Scenario Model Documentation: Data and References Lin...

    Office of Scientific and Technical Information (OSTI)

    Documentation: Data and References Lin, Y.; Newes, E.; Bush, B.; Peterson, S.; Stright, D. 09 BIOMASS FUELS BIOMASS SCENARIO MODEL; BSM; BIOMASS; BIOFUEL; MODEL; DATA; REFERENCES;...

  5. Overview of the Biomass Scenario Model

    SciTech Connect (OSTI)

    Peterson, Steve

    2015-09-01

    This report describes the structure of the October 2012 version of the Biomass Scenario Model (BSM) in considerable detail, oriented towards readers with a background or interest in the underlying modeling structures. Readers seeking a less-detailed summary of the BSM may refer to Peterson (2013). BSM aims to provide a framework for exploring the potential contribution of biofuel technologies to the transportation energy supply for the United States over the next several decades. The model has evolved significantly from the prototype developed as part of the Role of Biomass in America" tm s Energy Future (RBAEF) project. BSM represents the supply chain surrounding conversion pathways for multiple fuel products, including ethanol, butanol, and infrastructure-compatible biofuels such as diesel, jet fuel, and gasoline.

  6. Biomass Scenario Model | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData BookScenario Model Jump

  7. Biomass Scenario Model Scenario Library: Definitions, Construction, and Description

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby a contractor ofvarDOEBattery LifetimeBiomass EnergyBiomass

  8. Biomass Scenario Model Documentation: Data and References

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby a contractor ofvarDOEBattery LifetimeBiomass Energy

  9. Overview of the Biomass Scenario Model

    SciTech Connect (OSTI)

    Peterson, S.; Peck, C.; Stright, D.; Newes, E.; Inman, D.; Vimmerstedt, L.; Hsu, S.; Bush, B.

    2015-02-01

    Biofuels are promoted in the United States through legislation, as one part of an overall strategy to lessen dependence on imported energy as well as to reduce the emissions of greenhouse gases (Office of the Biomass Program and Energy Efficiency and Renewable Energy, 2008). For example, the Energy Independence and Security Act of 2007 (EISA) mandates 36 billion gallons of renewable liquid transportation fuel in the U.S. marketplace by the year 2022 (U.S. Government, 2007). Meeting the volumetric targets has prompted an unprecedented increase in funding for biofuels research, much of it focused on producing ethanol and other fuel types from cellulosic feedstocks as well as additional biomass sources (such as oil seeds and algae feedstock). In order to help propel the biofuels industry, the U.S. government has enacted a variety of incentive programs (including subsidies, fixed capital investment grants, loan guarantees, vehicle choice credits, and corporate average fuel economy standards) -- the short-and long-term ramifications of which are not well understood. Efforts to better understand the impacts of incentive strategies can help policy makers to develop a policy suite which will foster industry development while reducing the financial risk associated with government support of the nascent biofuels industry.

  10. Biomass Scenario Model, BETO Analysis Platform Peer Review (Presentati...

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

    bio-oil techno- economic analyses o Aviation biofuels and the European Union emissions trading system (ETS) o Light-duty-vehicle (LDV) ethanol-demand scenario analysis o Long...

  11. Biomass Scenario Model Scenario Library: Definitions, Construction...

    Office of Scientific and Technical Information (OSTI)

    phase reforming. Multiple products can be produced, including gasoline, diesel, and jet fuel. The oil crops module captures development of conversion capacity for soy-to-refinery...

  12. Biomass Energy for Transport and Electricity: Large scale utilization under low CO2 concentration scenarios

    SciTech Connect (OSTI)

    Luckow, Patrick; Wise, Marshall A.; Dooley, James J.; Kim, Son H.

    2010-01-25

    This paper examines the potential role of large scale, dedicated commercial biomass energy systems under global climate policies designed to stabilize atmospheric concentrations of CO2 at 400ppm and 450ppm. We use an integrated assessment model of energy and agriculture systems to show that, given a climate policy in which terrestrial carbon is appropriately valued equally with carbon emitted from the energy system, biomass energy has the potential to be a major component of achieving these low concentration targets. The costs of processing and transporting biomass energy at much larger scales than current experience are also incorporated into the modeling. From the scenario results, 120-160 EJ/year of biomass energy is produced by midcentury and 200-250 EJ/year by the end of this century. In the first half of the century, much of this biomass is from agricultural and forest residues, but after 2050 dedicated cellulosic biomass crops become the dominant source. A key finding of this paper is the role that carbon dioxide capture and storage (CCS) technologies coupled with commercial biomass energy can play in meeting stringent emissions targets. Despite the higher technology costs of CCS, the resulting negative emissions used in combination with biomass are a very important tool in controlling the cost of meeting a target, offsetting the venting of CO2 from sectors of the energy system that may be more expensive to mitigate, such as oil use in transportation. The paper also discusses the role of cellulosic ethanol and Fischer-Tropsch biomass derived transportation fuels and shows that both technologies are important contributors to liquid fuels production, with unique costs and emissions characteristics. Through application of the GCAM integrated assessment model, it becomes clear that, given CCS availability, bioenergy will be used both in electricity and transportation.

  13. NREL: Energy Analysis - BSM: Biomass Scenario 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12 NationalNOHydrogenWebmaster ToEnergyBSM -

  14. Biomass Scenario Model Scenario Library: Definitions, Construction, and

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report: Achievements of structural genomicsOfficeDescription (Technical Report) |

  15. Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM...

    Office of Environmental Management (EM)

    Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results This presentation by...

  16. Integrated Market Modeling of Hydrogen Transition Scenarios with...

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

    Integrated Market Modeling of Hydrogen Transition Scenarios with HyTrans Integrated Market Modeling of Hydrogen Transition Scenarios with HyTrans Presentation by Paul Leiby of Oak...

  17. Emergent scenario and different anisotropic models

    E-Print Network [OSTI]

    Sudeshna Mukerji; Nairwita Mazumder; Ritabrata Biswas; Subenoy Chakraborty

    2011-06-09

    In this work, Emergent Universe scenario has been developed in general homogeneous anisotropic model and for the inhomogeneus LTB model. In the first case, it is assumed that the matter in the universe has two components - one is perfect fluid with barotropic equation of state $p=\\omega\\rho$ ($\\omega$, a constant) and the other component is a real or phantom (or tachyonic) scalar field. In the second case, the universe is only filled with a perfect fluid and possibilities for the existence of emergent scenario has been examined.

  18. BIOMASS REBURNING - MODELING/ENGINEERING STUDIES

    SciTech Connect (OSTI)

    Vladimir Zamansky; Chris Lindsey; Vitali Lissianski

    2000-01-28

    This project is designed to develop engineering and modeling tools for a family of NO{sub x} control technologies utilizing biomass as a reburning fuel. During the ninth reporting period (September 27--December 31, 1999), EER prepared a paper Kinetic Model of Biomass Reburning and submitted it for publication and presentation at the 28th Symposium (International) on Combustion, University of Edinburgh, Scotland, July 30--August 4, 2000. Antares Group Inc, under contract to Niagara Mohawk Power Corporation, evaluated the economic feasibility of biomass reburning options for Dunkirk Station. A preliminary report is included in this quarterly report.

  19. U.S. DEPARTMENT OF ENERGY BIOMASS PROGRAM

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

    Workshop 10 | Biomass Program eere.energy.gov * The Biomass Program uses a baseline algal production scenario with model-based quantitative metrics to inform strategic planning *...

  20. Hydrogen Delivery Scenario Analysis Model (HDSAM)

    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 on Delicious Rank EERE:Financing Tool Fits the Bill FinancingDepartment ofPowerScenario Analysis Model (HDSAM) (Argonne

  1. Life-cycle assessment of local feedstock supply scenarios to compare1 candidate biomass sources2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Running Title : LCA of local biomass feedstocks3 4 Caroline H. Godard1* , Joachim Boissy1 , Benoît scientific elements to both support the42 choice of flax shives as the main biomass feedstock, and to help

  2. Preview of Scenario Planning & Collaborative Modeling Processes

    E-Print Network [OSTI]

    and quantitative data and information. · Both are communication tools #12;What are Scenarios? · Stories about / issue we want to address? Monitor · As new information unfolds, which scenarios seem most valid? Does winter precipitation relative to summer PrecipitationPatterns Shrubland Novel Ecosystem Mixed

  3. Large-Scale Utilization of Biomass Energy and Carbon Dioxide Capture and Storage in the Transport and Electricity Sectors under Stringent CO2 Concentration Limit Scenarios

    SciTech Connect (OSTI)

    Luckow, Patrick; Wise, Marshall A.; Dooley, James J.; Kim, Son H.

    2010-08-05

    This paper examines the potential role of large scale, dedicated commercial biomass energy systems under global climate policies designed to meet atmospheric concentrations of CO2 at 400ppm and 450ppm by the end of the century. We use an integrated assessment model of energy and agriculture systems to show that, given a climate policy in which terrestrial carbon is appropriately valued equally with carbon emitted from the energy system, biomass energy has the potential to be a major component of achieving these low concentration targets. A key aspect of the research presented here is that the costs of processing and transporting biomass energy at much larger scales than current experience are explicitly incorporated into the modeling. From the scenario results, 120-160 EJ/year of biomass energy is produced globally by midcentury and 200-250 EJ/year by the end of this century. In the first half of the century, much of this biomass is from agricultural and forest residues, but after 2050 dedicated cellulosic biomass crops become the majority source, along with growing utilization of waste-to-energy. The ability to draw on a diverse set of biomass based feedstocks helps to reduce the pressure for drastic large-scale changes in land use and the attendant environmental, ecological, and economic consequences those changes would unleash. In terms of the conversion of bioenergy feedstocks into value added energy, this paper demonstrates that biomass is and will continue to be used to generate electricity as well as liquid transportation fuels. A particular focus of this paper is to show how climate policies and technology assumptions - especially the availability of carbon dioxide capture and storage (CCS) technologies - affect the decisions made about where the biomass is used in the energy system. The potential for net-negative electric sector emissions through the use of CCS with biomass feedstocks provides an attractive part of the solution for meeting stringent emissions constraints; we find that at carbon prices above 150$/tCO2, over 90% of biomass in the energy system is used in combination with CCS. Despite the higher technology costs of CCS, it is a very important tool in controlling the cost of meeting a target, offsetting the venting of CO2 from sectors of the energy system that may be more expensive to mitigate, such as oil use in transportation. CCS is also used heavily with other fuels such as coal and natural gas, and by 2095 a total of 1530 GtCO2 has been stored in deep geologic reservoirs. The paper also discusses the role of cellulosic ethanol and Fischer-Tropsch biomass derived transportation fuels as two representative conversion processes and shows that both technologies may be important contributors to liquid fuels production, with unique costs and emissions characteristics.

  4. Biomass Scenario Model (Fact Sheet), NREL (National Renewable Energy Laboratory)

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura|Bilayer GrapheneW.Help

  5. Biomass Scenario Model Documentation: Data and References (Technical

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report: Achievements of structural genomicsOffice

  6. Scenario Evaluation and Regionalization Analysis (SERA) 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 on Delicious Rank EERE:Financing Tool FitsProjectData Dashboard RutlandSTEAB's1-E Wholesale Powerand beEnergyScenario

  7. November 2011 Model documentation for biomass,

    E-Print Network [OSTI]

    Noble, James S.

    and conventional electricity, natural gas and coal markets FAPRIMU Report #1211 Providing of Education, Office of Civil Rights. #12;3 Contents Biomass .....................................................................................................................15 Electricity market

  8. A Multi-Objective, Hub-and-Spoke Supply Chain Design Model For Densified Biomass

    SciTech Connect (OSTI)

    Md S. Roni; Sandra Eksioglu; Kara G. Cafferty

    2014-06-01

    In this paper we propose a model to design the supply chain for densified biomass. Rail is typically used for long-haul, high-volume shipment of densified biomass. This is the reason why a hub-and-spoke network structure is used to model this supply chain. The model is formulated as a multi-objective, mixed-integer programing problem under economic, environmental, and social criteria. The goal is to identify the feasibility of meeting the Renewable Fuel Standard (RFS) by using biomass for production of cellulosic ethanol. The focus in not just on the costs associated with meeting these standards, but also exploring the social and environmental benefits that biomass production and processing offers by creating new jobs and reducing greenhouse gas (GHG) emissions. We develop an augmented ?-constraint method to find the exact Pareto solution to this optimization problem. We develop a case study using data from the Mid-West. The model identifies the number, capacity and location of biorefineries needed to make use of the biomass available in the region. The model estimates the delivery cost of cellulosic ethanol under different scenario, the number new jobs created and the GHG emission reductions in the supply chain.

  9. A Multi-Objective, Hub-and-Spoke Supply Chain Design Model for Densified Biomass

    SciTech Connect (OSTI)

    Jacob J. Jacobson; Md. S. Roni; Kara G. Cafferty; Sandra D. Eksioglu

    2014-06-01

    In this paper we propose a model to design the supply chain for densified biomass. Rail is typically used for longhaul, high-volume shipment of densified biomass. This is the reason why a hub-and-spoke network structure is used to model this supply chain. The model is formulated as a multi-objective, mixed-integer programing problem under economic, environmental, and social criteria. The goal is to identify the feasibility of meeting the Renewable Fuel Standard (RFS) by using biomass for production of cellulosic ethanol. The focus is not just on the costs associated with meeting these standards, but also exploring the social and environmental benefits that biomass production and processing offers by creating new jobs and reducing greenhouse gas (GHG) emissions. We develop an augmented ?-constraint method to find the exact Pareto solution to this optimization problem. We develop a case study using data from the Mid-West. The model identifies the number, capacity and location of biorefineries needed to make use of the biomass available in the region. The model estimates the delivery cost of cellulosic ethanol under different scenario, the number new jobs created and the GHG emission reductions in the supply chain.

  10. Inflation scenario via the Standard Model Higgs boson and LHC

    E-Print Network [OSTI]

    A. O. Barvinsky; A. Yu. Kamenshchik; A. A. Starobinsky

    2008-09-11

    We consider a quantum corrected inflation scenario driven by a generic GUT or Standard Model type particle model whose scalar field playing the role of an inflaton has a strong non-minimal coupling to gravity. We show that currently widely accepted bounds on the Higgs mass falsify the suggestion of the paper arXiv:0710.3755 (where the role of radiative corrections was underestimated) that the Standard Model Higgs boson can serve as the inflaton. However, if the Higgs mass could be raised to $\\sim 230$ GeV, then the Standard Model could generate an inflationary scenario with the spectral index of the primordial perturbation spectrum $n_s\\simeq 0.935$ (barely matching present observational data) and the very low tensor-to-scalar perturbation ratio $r\\simeq 0.0006$.

  11. Technical Manual for the SAM Biomass Power Generation Model

    SciTech Connect (OSTI)

    Jorgenson, J.; Gilman, P.; Dobos, A.

    2011-09-01

    This technical manual provides context for the implementation of the biomass electric power generation performance model in the National Renewable Energy Laboratory's (NREL's) System Advisor Model (SAM). Additionally, the report details the engineering and scientific principles behind the underlying calculations in the model. The framework established in this manual is designed to give users a complete understanding of behind-the-scenes calculations and the results generated.

  12. Methodology Using MELCOR Code to Model Proposed Hazard Scenario

    SciTech Connect (OSTI)

    Gavin Hawkley

    2010-07-01

    This study demonstrates a methodology for using the MELCOR code to model a proposed hazard scenario within a building containing radioactive powder, and the subsequent evaluation of a leak path factor (LPF) (or the amount of respirable material which that escapes a facility into the outside environment), implicit in the scenario. This LPF evaluation will analyzes the basis and applicability of an assumed standard multiplication of 0.5 × 0.5 (in which 0.5 represents the amount of material assumed to leave one area and enter another), for calculating an LPF value. The outside release is dependsent upon the ventilation/filtration system, both filtered and un-filtered, and from other pathways from the building, such as doorways (, both open and closed). This study is presents ed to show how the multiple leak path factorsLPFs from the interior building can be evaluated in a combinatory process in which a total leak path factorLPF is calculated, thus addressing the assumed multiplication, and allowing for the designation and assessment of a respirable source term (ST) for later consequence analysis, in which: the propagation of material released into the environmental atmosphere can be modeled and the dose received by a receptor placed downwind can be estimated and the distance adjusted to maintains such exposures as low as reasonably achievableALARA.. Also, this study will briefly addresses particle characteristics thatwhich affect atmospheric particle dispersion, and compares this dispersion with leak path factorLPF methodology.

  13. Soldiers, robots and local population -modeling cross-cultural values in a peacekeeping scenario

    E-Print Network [OSTI]

    Bölöni, Ladislau L

    not about general trends but about the ongoing scenario. The model had been designed to provide input as part of a training or assessment tool. 2. The Market Checkpoint Scenario To anchor our modeling work in peacekeeping missions. The scenario takes place at a military checkpoint at the entrance of a busy market. We

  14. Biomass composition: the “elephant in the room” of metabolic modelling

    E-Print Network [OSTI]

    Dikicioglu, Duygu; Kirdar, Betul; Oliver, Stephen G.

    2015-06-11

    /D-Glucose, 10 148 270 035 Glycerol, 10 176 290 035 Ethanol, 11 112 821 035 Ammonia)] as described by the manufacturer. 2.2 Metabolic modelling The Yeast 7.00 stoichiometric model of the S. cerevisiae metabolic network (Aung et al. 2013) was employed in FBA... and the Biomass composition: the ‘‘elephant in the room’’ of metabolic modelling 123 documented growth phenotypes were assigned into Boo- lean classes of 1 or 0, indicating the presence or absence of growth. The null hypothesis (H0) to be tested...

  15. Pre-big bang scenario and the WZW model

    E-Print Network [OSTI]

    Marcel Jacon

    2015-06-09

    Extensive studies of pre-big bang scenarios for Bianchi-I type universe have been made, at various approximation levels. Knowing the solution of the equations for the post-big bang universe, the symmetries of the equations (time reversal and scale dual transformations) allow the study of pre-big bang solutions. However, the proposed solutions are unable to explain the actually observed acceleration of the expantion of the universe.Calculating the $\\beta $ equations for the Non-Linear Sigma model, at the first loop approximation and imposing conformal invariance at this level, lead to equations of motion that simply state that the curvature must be nil, which in turn allows the utilization of groups to solve the $\\beta $ equations. This is what is done in the Weiss-Zumino-Witten (WZW) model. In this article, I will show that using the WZW model on $SU_2$, some of the difficulties encountered in the determination of the pre and post big-bang solutions are eliminated. Combining the general results obtained with the $\\Lambda $CDM parameters lead to realistic solutions for the evolution of the universe, giving an explanation to the actually observed acceleration of the expansion in terms ot the dilation field $\\phi $(t).

  16. Modelling of a solar-powered supercritical water biomass gasifier Laurance A Watson1

    E-Print Network [OSTI]

    , the predicted thermal energy efficiency of the reactor is 53%. Keywords: Biomass, gasification, supercritical, biomass is a hydrogen lean feedstock and has a lower specific energy content than CH4. Accordingly moreModelling of a solar-powered supercritical water biomass gasifier Laurance A Watson1 , John D Pye2

  17. Modeling Shrimp Biomass and Viral Infection for Production of Biological Countermeasures

    E-Print Network [OSTI]

    Modeling Shrimp Biomass and Viral Infection for Production of Biological Countermeasures H. T of large quantities of therapeutic and/or preventative countermeasures. We couple equations for biomass machinery in an existing biomass for the production of a vaccine or antibody by infection using a virus

  18. The Importance of High Temporal Resolution in Modeling Renewable Energy Penetration Scenarios

    E-Print Network [OSTI]

    Nicolosi, Marco

    2011-01-01

    for Competitive Renewable Energy Zones in Texas, Report,Supply, National Renewable Energy Laboratory. Sensfuß, F. ,in Modeling Renewable Energy Penetration Scenarios Marco

  19. WP 3 Report: Biomass Potentials Biomass production potentials

    E-Print Network [OSTI]

    WP 3 Report: Biomass Potentials 1 Biomass production potentials in Central and Eastern Europe under different scenarios Final report of WP3 of the VIEWLS project, funded by DG-Tren #12;WP 3 Report: Biomass Potentials 2 Report Biomass production potentials in central and Eastern Europe under different scenarios

  20. Biomass Resource Allocation among Competing End Uses

    SciTech Connect (OSTI)

    Newes, E.; Bush, B.; Inman, D.; Lin, Y.; Mai, T.; Martinez, A.; Mulcahy, D.; Short, W.; Simpkins, T.; Uriarte, C.; Peck, C.

    2012-05-01

    The Biomass Scenario Model (BSM) is a system dynamics model developed by the U.S. Department of Energy as a tool to better understand the interaction of complex policies and their potential effects on the biofuels industry in the United States. However, it does not currently have the capability to account for allocation of biomass resources among the various end uses, which limits its utilization in analysis of policies that target biomass uses outside the biofuels industry. This report provides a more holistic understanding of the dynamics surrounding the allocation of biomass among uses that include traditional use, wood pellet exports, bio-based products and bioproducts, biopower, and biofuels by (1) highlighting the methods used in existing models' treatments of competition for biomass resources; (2) identifying coverage and gaps in industry data regarding the competing end uses; and (3) exploring options for developing models of biomass allocation that could be integrated with the BSM to actively exchange and incorporate relevant information.

  1. Future climate change under RCP emission scenarios with GISS ModelE2

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

    Nazarenko, L.; NASA Goddard Institute for Space Studies, New York, NY; Schmidt, G. A.; Miller, R. L.; Tausnev, N.; Trinnovim LLC, New York, NY; Kelley, M.; Trinnovim LLC, New York, NY; Ruedy, R.; Trinnovim LLC, New York, NY; et al

    2015-02-24

    We examine the anthropogenically forced climate response for the 21st century representative concentration pathway (RCP) emission scenarios and their extensions for the period 2101–2500. The experiments were performed with ModelE2, a new version of the NASA Goddard Institute for Space Sciences (GISS) coupled general circulation model that includes three different versions for the atmospheric composition components: a noninteractive version (NINT) with prescribed composition and a tuned aerosol indirect effect (AIE), the TCAD version with fully interactive aerosols, whole-atmosphere chemistry, and the tuned AIE, and the TCADI version which further includes a parameterized first indirect aerosol effect on clouds. Each atmosphericmore »version is coupled to two different ocean general circulation models: the Russell ocean model (GISS-E2-R) and HYCOM (GISS-E2-H). By 2100, global mean warming in the RCP scenarios ranges from 1.0 to 4.5°#2;C relative to 1850–1860 mean temperature in the historical simulations. In the RCP2.6 scenario, the surface warming in all simulations stays below a 2#2;°C threshold at the end of the 21st century. For RCP8.5, the range is 3.5–4.5°#2;C at 2100. Decadally averaged sea ice area changes are highly correlated to global mean surface air temperature anomalies and show steep declines in both hemispheres, with a larger sensitivity during winter months. By the year 2500, there are complete recoveries of the globally averaged surface air temperature for all versions of the GISS climate model in the low-forcing scenario RCP2.6. TCADI simulations show enhanced warming due to greater sensitivity to CO?, aerosol effects, and greater methane feedbacks, and recovery is much slower in RCP2.6 than with the NINT and TCAD versions. All coupled models have decreases in the Atlantic overturning stream function by 2100. In RCP2.6, there is a complete recovery of the Atlantic overturning stream function by the year 2500 while with scenario RCP8.5, the E2-R climate model produces a complete shutdown of deep water formation in the North Atlantic.« less

  2. Future climate change under RCP emission scenarios with GISS ModelE2

    SciTech Connect (OSTI)

    Nazarenko, L.; Schmidt, G. A.; Miller, R. L.; Tausnev, N.; Kelley, M.; Ruedy, R.; Russell, G. L.; Aleinov, I.; Bauer, M.; Bauer, S.; Bleck, R.; Canuto, V.; Cheng, Y.; Clune, T. L.; Del Genio, A. D.; Faluvegi, G.; Hansen, J. E.; Healy, R. J.; Kiang, N. Y.; Koch, D.; Lacis, A. A.; LeGrande, A. N.; Lerner, J.; Lo, K. K.; Menon, S.; Oinas, V.; Perlwitz, J.; Puma, M. J.; Rind, D.; Romanou, A.; Sato, M.; Shindell, D. T.; Sun, S.; Tsigaridis, K.; Unger, N.; Voulgarakis, A.; Yao, M. -S.; Zhang, Jinlun

    2015-02-24

    We examine the anthropogenically forced climate response for the 21st century representative concentration pathway (RCP) emission scenarios and their extensions for the period 2101–2500. The experiments were performed with ModelE2, a new version of the NASA Goddard Institute for Space Sciences (GISS) coupled general circulation model that includes three different versions for the atmospheric composition components: a noninteractive version (NINT) with prescribed composition and a tuned aerosol indirect effect (AIE), the TCAD version with fully interactive aerosols, whole-atmosphere chemistry, and the tuned AIE, and the TCADI version which further includes a parameterized first indirect aerosol effect on clouds. Each atmospheric version is coupled to two different ocean general circulation models: the Russell ocean model (GISS-E2-R) and HYCOM (GISS-E2-H). By 2100, global mean warming in the RCP scenarios ranges from 1.0 to 4.5°#2;C relative to 1850–1860 mean temperature in the historical simulations. In the RCP2.6 scenario, the surface warming in all simulations stays below a 2#2;°C threshold at the end of the 21st century. For RCP8.5, the range is 3.5–4.5°#2;C at 2100. Decadally averaged sea ice area changes are highly correlated to global mean surface air temperature anomalies and show steep declines in both hemispheres, with a larger sensitivity during winter months. By the year 2500, there are complete recoveries of the globally averaged surface air temperature for all versions of the GISS climate model in the low-forcing scenario RCP2.6. TCADI simulations show enhanced warming due to greater sensitivity to CO?, aerosol effects, and greater methane feedbacks, and recovery is much slower in RCP2.6 than with the NINT and TCAD versions. All coupled models have decreases in the Atlantic overturning stream function by 2100. In RCP2.6, there is a complete recovery of the Atlantic overturning stream function by the year 2500 while with scenario RCP8.5, the E2-R climate model produces a complete shutdown of deep water formation in the North Atlantic.

  3. Development of the Integrated Biomass Supply Analysis and Logistics Model (IBSAL)

    SciTech Connect (OSTI)

    Sokhansanj, Shahabaddine [ORNL; Webb, Erin [ORNL; Turhollow Jr, Anthony F [ORNL

    2008-06-01

    The Integrated Biomass Supply & Logistics (IBSAL) model is a dynamic (time dependent) model of operations that involve collection, harvest, storage, preprocessing, and transportation of feedstock for use at a biorefinery. The model uses mathematical equations to represent individual unit operations. These unit operations can be assembled by the user to represent the working rate of equipment and queues to represent storage at facilities. The model calculates itemized costs, energy input, and carbon emissions. It estimates resource requirements and operational characteristics of the entire supply infrastructure. Weather plays an important role in biomass management and thus in IBSAL, dictating the moisture content of biomass and whether or not it can be harvested on a given day. The model calculates net biomass yield based on a soil conservation allowance (for crop residue) and dry matter losses during harvest and storage. This publication outlines the development of the model and provides examples of corn stover harvest and logistics.

  4. Modeling, Optimization and Economic Evaluation of Residual Biomass Gasification 

    E-Print Network [OSTI]

    Georgeson, Adam

    2012-02-14

    and product options are available for gasification along with combinations thereof. The objective of this work is to create a systematic method for optimizing the design of a residual biomass gasification unit. In detail, this work involves development...

  5. LWR codes capability to address SFR BDBA scenarios: Modeling of the ABCOVE tests

    SciTech Connect (OSTI)

    Herranz, L. E.; Garcia, M.; Morandi, S.

    2012-07-01

    The sound background built-up in LWR source term analysis in case of a severe accident, make it worth to check the capability of LWR safety analysis codes to model accident SFR scenarios, at least in some areas. This paper gives a snapshot of such predictability in the area of aerosol behavior in containment. To do so, the AB-5 test of the ABCOVE program has been modeled with 3 LWR codes: ASTEC, ECART and MELCOR. Through the search of a best estimate scenario and its comparison to data, it is concluded that even in the specific case of in-containment aerosol behavior, some enhancements would be needed in the LWR codes and/or their application, particularly with respect to consideration of particle shape. Nonetheless, much of the modeling presently embodied in LWR codes might be applicable to SFR scenarios. These conclusions should be seen as preliminary as long as comparisons are not extended to more experimental scenarios. (authors)

  6. Classical Cepheid Pulsation Models. III. The Predictable Scenario

    E-Print Network [OSTI]

    G. Bono; V. Castellani; M. Marconi

    1999-08-02

    Within the current uncertainties in the treatment of the coupling between pulsation and convection, limiting amplitude, nonlinear, convective models appear the only viable approach for providing theoretical predictions about the intrinsic properties of radial pulsators. In this paper we present the results of a comprehensive set of Cepheid models computed within such theoretical framework for selected assumptions on their original chemical composition.

  7. Modeling Sensitivities to the 20% Wind Scenario Report with the WinDS Model

    SciTech Connect (OSTI)

    Blair, N.; Hand, M.; Short, W.; Sullivan, P.

    2008-06-01

    In May 2008, DOE published '20% Wind Energy by 2030', a report which describes the costs and benefits of producing 20% of the nation's projected electricity demand in 2030 from wind technology. The total electricity system cost resulting from this scenario was modestly higher than a scenario in which no additional wind was installed after 2006. NREL's Wind Deployment System (WinDS) model was used to support this analysis. With its 358 regions, explicit treatment of transmission expansion, onshore siting considerations, shallow- and deep-water wind resources, 2030 outlook, explicit financing assumptions, endogenous learning, and stochastic treatment of wind resource variability, WinDS is unique in the level of detail it can bring to this analysis. For the 20% Wind Energy by 2030 analysis, the group chose various model structures (such as the ability to wheel power within an interconnect), and the wind industry agreed on a variety of model inputs (such as the cost of transmission or new wind turbines). For this paper, the analysis examined the sensitivity of the results to variations in those input values and model structure choices. These included wind cost and performance improvements over time, seasonal/diurnal wind resource variations, transmission access and costs, siting costs, conventional fuel cost trajectories, and conventional capital costs.

  8. Biomass characterization and reduced order modeling of mixed-feedstock gasification

    E-Print Network [OSTI]

    Chapman, Alex J. (Alex Jacob)

    2011-01-01

    There has been much effort to characterize and model coal for use in combustion and gasification. This work seeks to delineate the differences and similarities between biomass and coal, with emphasis on the state of the ...

  9. Initial VHTR accident scenario classification: models and data.

    SciTech Connect (OSTI)

    Vilim, R. B.; Feldman, E. E.; Pointer, W. D.; Wei, T. Y. C.; Nuclear Engineering Division

    2005-09-30

    Nuclear systems codes are being prepared for use as computational tools for conducting performance/safety analyses of the Very High Temperature Reactor. The thermal-hydraulic codes are RELAP5/ATHENA for one-dimensional systems modeling and FLUENT and/or Star-CD for three-dimensional modeling. We describe a formal qualification framework, the development of Phenomena Identification and Ranking Tables (PIRTs), the initial filtering of the experiment databases, and a preliminary screening of these codes for use in the performance/safety analyses. In the second year of this project we focused on development of PIRTS. Two events that result in maximum fuel and vessel temperatures, the Pressurized Conduction Cooldown (PCC) event and the Depressurized Conduction Cooldown (DCC) event, were selected for PIRT generation. A third event that may result in significant thermal stresses, the Load Change event, is also selected for PIRT generation. Gas reactor design experience and engineering judgment were used to identify the important phenomena in the primary system for these events. Sensitivity calculations performed with the RELAP5 code were used as an aid to rank the phenomena in order of importance with respect to the approach of plant response to safety limits. The overall code qualification methodology was illustrated by focusing on the Reactor Cavity Cooling System (RCCS). The mixed convection mode of heat transfer and pressure drop is identified as an important phenomenon for Reactor Cavity Cooling System (RCCS) operation. Scaling studies showed that the mixed convection mode is likely to occur in the RCCS air duct during normal operation and during conduction cooldown events. The RELAP5/ATHENA code was found to not adequately treat the mixed convection regime. Readying the code will require adding models for the turbulent mixed convection regime while possibly performing new experiments for the laminar mixed convection regime. Candidate correlations for the turbulent mixed convection regime for circular channel geometry were identified in the literature. We describe the use of computational experiments to obtain correction factors for applying these circular channel results to the specialized channel geometry of the RCCS. The intent is to reduce the number of laboratory experiments required. The FLUENT and Star-CD codes contain models that in principle can handle mixed convection but no data were found to indicate that their empirical models for turbulence have been benchmarked for mixed convection conditions. Separate effects experiments were proposed for gathering the needed data. In future work we will use the PIRTs to guide review of other components and phenomena in a similar manner as was done for the mixed convection mode in the RCCS. This is consistent with the project objective of identifying weaknesses or gaps in the code models for representing thermal-hydraulic phenomena expected to occur in the VHTR both during normal operation and upsets, identifying the models that need to be developed, and identifying the experiments that must be performed to support model development.

  10. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;5-2 #12;APPENDIX 5: BIOMASS TO ENERGY PROJECT:WILDLIFE HABITAT EVALUATION 1. Authors: Patricia Manley Ross management scenarios. We evaluated the potential effects of biomass removal scenarios on biological diversity

  11. Systematic Scenario-Based Analysis of UML Design Class models Lijun Yu, Robert B. France, Indrakshi Ray, Wuliang Sun

    E-Print Network [OSTI]

    Ray, Indrakshi

    Systematic Scenario-Based Analysis of UML Design Class models Lijun Yu, Robert B. France, Indrakshi, sunwl}@cs.colostate.edu Abstract Scenario-based UML Design Analysis (SUDA) is a lightweight technique the Scenario-based UML Design Analysis (SUDA) technique [Yu08] [Yu07]. SUDA can be used to rigorously analyze

  12. A Technical Review on Biomass Processing: Densification, Preprocessing, Modeling and Optimization

    SciTech Connect (OSTI)

    Jaya Shankar Tumuluru; Christopher T. Wright

    2010-06-01

    It is now a well-acclaimed fact that burning fossil fuels and deforestation are major contributors to climate change. Biomass from plants can serve as an alternative renewable and carbon-neutral raw material for the production of bioenergy. Low densities of 40–60 kg/m3 for lignocellulosic and 200–400 kg/m3 for woody biomass limits their application for energy purposes. Prior to use in energy applications these materials need to be densified. The densified biomass can have bulk densities over 10 times the raw material helping to significantly reduce technical limitations associated with storage, loading and transportation. Pelleting, briquetting, or extrusion processing are commonly used methods for densification. The aim of the present research is to develop a comprehensive review of biomass processing that includes densification, preprocessing, modeling and optimization. The specific objective include carrying out a technical review on (a) mechanisms of particle bonding during densification; (b) methods of densification including extrusion, briquetting, pelleting, and agglomeration; (c) effects of process and feedstock variables and biomass biochemical composition on the densification (d) effects of preprocessing such as grinding, preheating, steam explosion, and torrefaction on biomass quality and binding characteristics; (e) models for understanding the compression characteristics; and (f) procedures for response surface modeling and optimization.

  13. The Great Sand Dunes Ecosystem Elk and Bison Carrying Capacity Model: Description and Scenario Results

    E-Print Network [OSTI]

    Boone, Randall B.

    1 The Great Sand Dunes Ecosystem Elk and Bison Carrying Capacity Model: Description and Scenario studying the Sand Dunes ecosystem in the past decade. The information they have gathered has been.S. Geological Survey, and Great Sand Dunes National Park and Preserve for providing funding to support

  14. Scenario-Based Fault-Tolerant Model Predictive Control for Diesel-Electric Marine Power Plant

    E-Print Network [OSTI]

    Johansen, Tor Arne

    Scenario-Based Fault-Tolerant Model Predictive Control for Diesel-Electric Marine Power Plant Email: torstein.bo@itk.ntnu.no, tor.arne.johansen@itk.ntnu.no Abstract--Diesel-electric propulsion generation control, Ma- rine safety, Optimal control. I. INTRODUCTION Diesel electric propulsion is a system

  15. Modeling Long-Range Transportation and Land Use Scenarios for the Sacramento Region, Using Citizen-Generated Policies

    E-Print Network [OSTI]

    Johnston, Robert A.; Gao, Shengyi; Clay, Michael J.

    2008-01-01

    Barra. Comparison from the Sacramento Model Testbed. Transp.Management Policies in the Sacramento Region: Year Two.Land Use Scenarios for the Sacramento Region, Using Citizen-

  16. MODEL BASED BIOMASS SYSTEM DESIGN OF FEEDSTOCK SUPPLY SYSTEMS FOR BIOENERGY PRODUCTION

    SciTech Connect (OSTI)

    David J. Muth, Jr.; Jacob J. Jacobson; Kenneth M. Bryden

    2013-08-01

    Engineering feedstock supply systems that deliver affordable, high-quality biomass remains a challenge for the emerging bioenergy industry. Cellulosic biomass is geographically distributed and has diverse physical and chemical properties. Because of this feedstock supply systems that deliver cellulosic biomass resources to biorefineries require integration of a broad set of engineered unit operations. These unit operations include harvest and collection, storage, preprocessing, and transportation processes. Design decisions for each feedstock supply system unit operation impact the engineering design and performance of the other system elements. These interdependencies are further complicated by spatial and temporal variances such as climate conditions and biomass characteristics. This paper develops an integrated model that couples a SQL-based data management engine and systems dynamics models to design and evaluate biomass feedstock supply systems. The integrated model, called the Biomass Logistics Model (BLM), includes a suite of databases that provide 1) engineering performance data for hundreds of equipment systems, 2) spatially explicit labor cost datasets, and 3) local tax and regulation data. The BLM analytic engine is built in the systems dynamics software package PowersimTM. The BLM is designed to work with thermochemical and biochemical based biofuel conversion platforms and accommodates a range of cellulosic biomass types (i.e., herbaceous residues, short- rotation woody and herbaceous energy crops, woody residues, algae, etc.). The BLM simulates the flow of biomass through the entire supply chain, tracking changes in feedstock characteristics (i.e., moisture content, dry matter, ash content, and dry bulk density) as influenced by the various operations in the supply chain. By accounting for all of the equipment that comes into contact with biomass from the point of harvest to the throat of the conversion facility and the change in characteristics, the BLM evaluates economic performance of the engineered system, as well as determining energy consumption and green house gas performance of the design. This paper presents a BLM case study delivering corn stover to produce cellulosic ethanol. The case study utilizes the BLM to model the performance of several feedstock supply system designs. The case study also explores the impact of temporal variations in climate conditions to test the sensitivity of the engineering designs. Results from the case study show that under certain conditions corn stover can be delivered to the cellulosic ethanol biorefinery for $35/dry ton.

  17. The Importance of High Temporal Resolution in Modeling Renewable Energy Penetration Scenarios

    SciTech Connect (OSTI)

    Nicolosi, Marco; Mills, Andrew D; Wiser, Ryan H

    2010-10-08

    Traditionally, modeling investment and dispatch problems in electricity economics has been limited by computation power. Due to this limitation, simplifications are applied. One common practice, for example, is to reduce the temporal resolution of the dispatch by clustering similar load levels. The increase of intermittent electricity from renewable energy sources (RES-E) changes the validity of this assumption. RES-E already cover a certain amount of the total demand. This leaves an increasingly volatile residual demand to be matched by the conventional power market. This paper quantifies differences in investment decisions by applying three different time-resolution residual load patterns in an investment and dispatch power system model. The model optimizes investment decisions in five year steps between today and 2030 with residual load levels for 8760, 288 and 16 time slices per year. The market under consideration is the four zone ERCOT market in Texas. The results show that investment decisions significantly differ across the three scenarios. In particular, investments into base-load technologies are substantially reduced in the high resolution scenario (8760 residual load levels) relative to the scenarios with lower temporal resolution. Additionally, the amount of RES-E curtailment and the market value of RES-E exhibit noteworthy differences.

  18. TURBULENT COMBUSTION MODELING OF COAL:BIOMASS BLENDS IN A SWIRL BURNER I -PRELIMINARY RESULTS

    E-Print Network [OSTI]

    Daripa, Prabir

    coal or by ex- haust clean up technology. For the power plants, the simplest solution is the preventive- ity well into the 21st century. This dependency on coal calls for better technologies to reduceTURBULENT COMBUSTION MODELING OF COAL:BIOMASS BLENDS IN A SWIRL BURNER I - PRELIMINARY RESULTS

  19. A Biomass-based Model to Estimate the Plausibility of Exoplanet Biosignature Gases

    E-Print Network [OSTI]

    Seager, S; Hu, R

    2013-01-01

    Biosignature gas detection is one of the ultimate future goals for exoplanet atmosphere studies. We have created a framework for linking biosignature gas detectability to biomass estimates, including atmospheric photochemistry and biological thermodynamics. The new framework is intended to liberate predictive atmosphere models from requiring fixed, Earth-like biosignature gas source fluxes. New biosignature gases can be considered with a check that the biomass estimate is physically plausible. We have validated the models on terrestrial production of NO, H2S, CH4, CH3Cl, and DMS. We have applied the models to propose NH3 as a biosignature gas on a "cold Haber World," a planet with a N2-H2 atmosphere, and to demonstrate why gases such as CH3Cl must have too large of a biomass to be a plausible biosignature gas on planets with Earth or early-Earth-like atmospheres orbiting a Sun-like star. To construct the biomass models, we developed a functional classification of biosignature gases, and found that gases (such...

  20. Modeling Clean and Secure Energy Scenarios for the Indian Power Sector in 2030

    E-Print Network [OSTI]

    Abhyankara, Nikit

    2014-01-01

    scenario assumes that clean energy sources provide 40% ofscenario assumes that clean energy sources provide 60% ofcapacity in the clean energy scenarios is substantially more

  1. Understanding Biomass Feedstock Variability

    SciTech Connect (OSTI)

    Kevin L. Kenney; William A. Smith; Garold L. Gresham; Tyler L. Westover

    2013-01-01

    If the singular goal of biomass logistics and the design of biomass feedstock supply systems is to reduce the per ton supply cost of biomass, these systems may very well develop with ultimate unintended consequences of highly variable and reduced quality biomass feedstocks. This paper demonstrates that due to inherent species variabilities, production conditions, and differing harvest, collection, and storage practices, this is a very real scenario that biomass producers and suppliers as well as conversion developers should be aware of. Biomass feedstock attributes of ash, carbohydrates, moisture, and particle morphology will be discussed. We will also discuss specifications for these attributes, inherent variability of these attributes in biomass feedstocks, and approaches and solutions for reducing variability for improving feedstock quality.

  2. Understanding Biomass Feedstock Variability

    SciTech Connect (OSTI)

    Kevin L. Kenney; Garold L. Gresham; William A. Smith; Tyler L. Westover

    2013-01-01

    If the singular goal of biomass logistics and the design of biomass feedstock supply systems is to reduce the per-ton supply cost of biomass, these systems may very well develop with ultimate unintended consequences of highly variable and reduced quality biomass feedstocks. This paper demonstrates that, due to inherent species variabilities, production conditions and differing harvest, collection and storage practices, this is a very real scenario that biomass producers and suppliers as well as conversion developers should be aware of. Biomass feedstock attributes of ash, carbohydrates, moisture and particle morphology will be discussed. We will also discuss specifications for these attributes, inherent variability of these attributes in biomass feedstocks, and approaches and solutions for reducing variability for improving feedstock quality.

  3. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    potential future scenarios for renewable energy and otherRenewable Energy Modeling Series Resources for the Futureand future costs and performance of all conventional power and renewable energy

  4. A supply chain network design model for biomass co-firing in coal-fired power plants

    SciTech Connect (OSTI)

    Md. S. Roni; Sandra D. Eksioglu; Erin Searcy; Krishna Jha

    2014-01-01

    We propose a framework for designing the supply chain network for biomass co-firing in coal-fired power plants. This framework is inspired by existing practices with products with similar physical characteristics to biomass. We present a hub-and-spoke supply chain network design model for long-haul delivery of biomass. This model is a mixed integer linear program solved using benders decomposition algorithm. Numerical analysis indicates that 100 million tons of biomass are located within 75 miles from a coal plant and could be delivered at $8.53/dry-ton; 60 million tons of biomass are located beyond 75 miles and could be delivered at $36/dry-ton.

  5. SERA Scenarios of Early Market Fuel Cell Electric Vehicle Introductions: Modeling Framework, Regional Markets, and Station Clustering; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Melaina, M.

    2015-03-23

    This presentation provides an overview of the Scenario Evaluation and Regionalization Analysis (SERA) model, describes the methodology for developing scenarios for hydrogen infrastructure development, outlines an example "Hydrogen Success" scenario, and discusses detailed scenario metrics for a particular case study region, the Northeast Corridor.

  6. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    energy zones because of their higher inorganic sediment supply.supply (25 suites of 18 model scenarios each), we could not clearly define a single tertiary The high- and low-energy

  7. Towards a Cognitive Handoff for the Future Internet: Model-driven Methodology and Taxonomy of Scenarios

    E-Print Network [OSTI]

    Gonzalez-Horta, Francisco A; Ramirez-Cortes, Juan M; Martinez-Carballido, Jorge; Buenfil-Alpuche, Eldamira

    2011-01-01

    A cognitive handoff is a multipurpose handoff that achieves many desirable features simultaneously; e.g., seamlessness, autonomy, security, correctness, adaptability, etc. But, the development of cognitive handoffs is a challenging task that has not been properly addressed in the literature. In this paper, we discuss the difficulties of developing cognitive handoffs and propose a new model-driven methodology for their systematic development. The theoretical framework of this methodology is the holistic approach, the functional decomposition method, the model-based design paradigm, and the theory of design as scientific problem-solving. We applied the proposed methodology and obtained the following results: (i) a correspondence between handoff purposes and quantitative environment information, (ii) a novel taxonomy of handoff mobility scenarios, and (iii) an original state-based model representing the functional behavior of the handoff process.

  8. Biomass for Electricity Generation

    Reports and Publications (EIA)

    2002-01-01

    This paper examines issues affecting the uses of biomass for electricity generation. The methodology used in the National Energy Modeling System to account for various types of biomass is discussed, and the underlying assumptions are explained.

  9. Biomass power plant feedstock procurement: Modeling transportation cost zones and the potential for competition

    E-Print Network [OSTI]

    Kizha., Anil R; Han, Han-Sup; Montgomery, Timothy; Hohl, Aaron

    2015-01-01

    RC, Wu Y. 2009. Forest biomass supply in the SoutheasternAH. 2011. Integrating woody biomass into the U.S. South woodDensified Wood Products. Woody Biomass Workshop. Ukiah, CA.

  10. Implications of Model Structure and Detail for Utility Planning. Scenario Case Studies using the Resource Planning Model

    SciTech Connect (OSTI)

    Mai, Trieu; Barrows, Clayton; Lopez, Anthony; Hale, Elaine; Dyson, Mark; Eurek, Kelly

    2015-04-23

    We examine how model investment decisions change under different model configurations and assumptions related to renewable capacity credit, the inclusion or exclusion of operating reserves, dispatch period sampling, transmission power flow modeling, renewable spur line costs, and the ability of a planning region to import and export power. For all modeled scenarios, we find that under market conditions where new renewable deployment is predominantly driven by renewable portfolio standards, model representations of wind and solar capacity credit and interactions between balancing areas are most influential in avoiding model investments in excess thermal capacity. We also compare computation time between configurations to evaluate tradeoffs between computational burden and model accuracy. From this analysis, we find that certain advanced dispatch representations (e.g., DC optimal power flow) can have dramatic adverse effects on computation time but can be largely inconsequential to model investment outcomes, at least at the renewable penetration levels modeled. Finally, we find that certain underappreciated aspects of new capacity investment decisions and model representations thereof, such as spur lines for new renewable capacity, can influence model outcomes particularly in the renewable technology and location chosen by the model. Though this analysis is not comprehensive and results are specific to the model region, input assumptions, and optimization-modeling framework employed, the findings are intended to provide a guide for model improvement opportunities.

  11. MODELING THE EFFECTS OF HUD VISUAL PROPERTIES, PILOT EXPERIENCE AND FLIGHT SCENARIO ON A MULTI-DIMENSIONAL MEASURE OF CLUTTER

    E-Print Network [OSTI]

    Kaber, David B.

    MODELING THE EFFECTS OF HUD VISUAL PROPERTIES, PILOT EXPERIENCE AND FLIGHT SCENARIO ON A MULTI experience; (b) HUD configuration; (c) flight segment; and (d) workload on perceptions of display clutter and cognitive load, and flight task performance. 3. Model HUD clutter scores in terms of display visual

  12. Comparison of "warm and wet" and "cold and icy" scenarios for early Mars in a 3D climate model

    E-Print Network [OSTI]

    Wordsworth, Robin D; Pierrehumbert, Raymond T; Forget, Francois; Head, James W

    2015-01-01

    We use a 3D general circulation model to compare the primitive Martian hydrological cycle in "warm and wet" and "cold and icy" scenarios. In the warm and wet scenario, an anomalously high solar flux or intense greenhouse warming artificially added to the climate model are required to maintain warm conditions and an ice-free northern ocean. Precipitation shows strong surface variations, with high rates around Hellas basin and west of Tharsis but low rates around Margaritifer Sinus (where the observed valley network drainage density is nonetheless high). In the cold and icy scenario, snow migration is a function of both obliquity and surface pressure, and limited episodic melting is possible through combinations of seasonal, volcanic and impact forcing. At surface pressures above those required to avoid atmospheric collapse (~0.5 bar) and moderate to high obliquity, snow is transported to the equatorial highland regions where the concentration of valley networks is highest. Snow accumulation in the Aeolis quadr...

  13. Modeling of char oxidation in fluidized bed biomass gasifiers : effects of transport and chemical kinetics

    E-Print Network [OSTI]

    Brooks, Amelia (Amelia Samek)

    2015-01-01

    Technologies for the conversion of biomass to liquid fuels are important to develop because the demand for liquid fuels remains unchanged even with the necessity of limiting dependence on fossil fuels. Fluidized Bed Biomass ...

  14. Status of Advanced Tokamak Scenario Modeling with Off-Axis Electron Cyclotron Current Drive in DIII-D

    SciTech Connect (OSTI)

    M. Murakami; H.E. St.John; T.A. Casper; M.S. Chu; J.C. DeBoo; C.M. Greenfield; J.E. Kinsey; L.L. Lao; R.J. La Haye; Y.R. Lin-Liu; T.C. Luce; P.A. Politzer; B.W. Rice; G.M. Staebler; T.S. Taylor; M.R. Wade

    1999-12-01

    The status of modeling work focused on developing the advanced tokamak scenarios in DIII-D is discussed. The objectives of the work are two-fold: (1) to develop AT scenarios with ECCD using time-dependent transport simulations, coupled with heating and current drive models, consistent with MHD equilibrium and stability; and (2) to use time-dependent simulations to help plan experiments and to understand the key physics involved. Time-dependent simulations based on transport coefficients derived from experimentally achieved target discharges are used to perform AT scenario modeling. The modeling indicates off-axis ECCD with approximately 3 MW absorbed power can maintain high-performance discharges with q{sub min} > 1 for 5 to 10 s. The resultant equilibria are calculated to be stable to n = 1 pressure driven modes. The plasma is well into the second stability regime for high-n ballooning modes over a large part of the plasma volume. The role of continuous localized ECCD is studied for stabilizing m/n = 2/1 tearing modes. The progress towards validating current drive and transport models, consistent with experimental results, and developing self-consistent, integrated high performance AT scenarios is discussed.

  15. Modelling of a solar-powered supercritical water biomass gasifier Laurance A Watson1

    E-Print Network [OSTI]

    is incorporated that recovers the waste heat proceeding biomass gasification. Under the ideal assumptions applied, the predicted thermal energy efficiency of the reactor is 53%. Keywords: Biomass, gasification, supercritical conversion. There are three key reasons for the lack of industrial interest in biomass gasification. Firstly

  16. Modeling the influence of river rehabilitation scenarios on bed material sediment flux in a large river over decadal timescales

    E-Print Network [OSTI]

    Singer, Michael

    Modeling the influence of river rehabilitation scenarios on bed material sediment flux in a large and calibrated sediment transport formulae were used to assess the decadal impact of major river rehabilitation the implementation of three major river rehabilitation strategies being considered in the Sacramento River Valley

  17. Integrated Core-SOL-Divertor Modelling for ITER Including Impurity: Effect of Tungsten on Fusion Performance in H-mode and Hybrid Scenario

    E-Print Network [OSTI]

    Integrated Core-SOL-Divertor Modelling for ITER Including Impurity: Effect of Tungsten on Fusion Performance in H-mode and Hybrid Scenario

  18. PERSPECTIVES Scenarios &

    E-Print Network [OSTI]

    on alternative energy scenarios and strategies aimed at a clean, clever and competitive energy future" #122 0 0 6 ENERGY TECHNOLOGY PERSPECTIVES Scenarios & Strategies to 2050 Energy Technology/speech/2006/ramsay/etp_tokyo.pdf #12;INTERNATIONAL ENERGY AGENCY AGENCE INTERNATIONALE DE L'ENERGIE G8

  19. Combining Genetic Algorithms & Simulation to Search for Failure Scenarios in System Models

    E-Print Network [OSTI]

    Mills, Chris Dabrowski, Jim Filliben and Sandy Ressler NIST Cloud Security Working Group July 17, 2013 for Failure Scenarios ­ Evaluating Method · Conclusions & Future Work July 17, 2013 NIST Cloud Security WG 2 #12;July 17, 2013 NIST Cloud Security WG 3 GROWING GLOBAL DEPENDENCE ON COMPLEX INFO. SYSTEMS #12;July

  20. Mathematical Modeling and Experimental Study of Biomass Combustion in a Thermal 108 MW Grate-Fired Boiler

    E-Print Network [OSTI]

    Rosendahl, Lasse

    -Fired Boiler Chungen Yin,*, Lasse Rosendahl, Søren K. Kær, Sønnik Clausen, Søren L. Hvid,§ and Torben Hille, Denmark ReceiVed NoVember 16, 2007. ReVised Manuscript ReceiVed January 4, 2008 Grate boilers are widely) model for an industrial biomass-fired grate boiler, which can be used for diagnosis and optimization

  1. arXiv:1307.5640v2[math.OC]18Nov2013 The Scenario Approach for Stochastic Model Predictive

    E-Print Network [OSTI]

    Frei, Christoph

    or load mitigation for wind turbines. For such sys- tems, a new control method of Scenario-Based ModelarXiv:1307.5640v2[math.OC]18Nov2013 The Scenario Approach for Stochastic Model Predictive Control. In the presence of model uncertainties or disturbances, for many control applications it suffices to keep

  2. HEITSCH, R OMISCH --GENERATION OF MULTIVARIATE SCENARIO TREES TO MODEL STOCHASTICITY IN POWER MANAGEMENT 1 Generation of Multivariate Scenario Trees to Model

    E-Print Network [OSTI]

    Römisch, Werner

    prices of fuel and electricity). Since the corresponding determinis- tic equivalents of multistage Heitsch and Werner R¨omisch Humboldt-University Berlin, Institute of Mathematics 10099 Berlin, Germany Abstract-- Modern electricity portfolio and risk management models represent multistage stochastic programs

  3. Chemistry of Furan Conversion into Aromatics and Olefins over HZSM-5: A Model Biomass Conversion Reaction

    SciTech Connect (OSTI)

    Cheng, Yu-Ting; Huber, George W.

    2011-06-03

    The conversion of furan (a model of cellulosic biomass) over HZSM-5 was investigated in a thermogravimetric analysis–mass spectrometry system, in situ Fourier transform infrared analysis, and in a continuous-flow fixed-bed reactor. Furan adsorbed as oligomers at room temperature with a 1.73 of adsorbed furan/Al ratio. These oligomers were polycyclic aromatic compounds that were converted to CO, CO?, aromatics, and olefins at temperatures from 400 to 600 °C. Aromatics (e.g., benzene, toluene, and naphthalene), oligomer isomers (e.g., benzofuran, 2,2-methylenebisfuran, and benzodioxane), and heavy oxygenates (C??{sub +} oligomers) were identified as intermediates formed inside HZSM-5 at different reaction temperatures. During furan conversion, graphite-type coke formed on the catalyst surface, which caused the aromatics and olefins formation to deactivate within the first 30 min of time on-stream. We have measured the effects of space velocity and temperature for furan conversion to help us understand the chemistry of biomass conversion inside zeolite catalysts. The major products for furan conversion included CO, CO?, allene, C?–C? olefins, benzene, toluene, styrene, benzofuran, indene, and naphthalene. The aromatics (benzene and toluene) and olefins (ethylene and propylene) selectivity decreased with increasing space velocity. Unsaturated hydrocarbons such as allene, cyclopentadiene, and aromatics selectivity increased with increasing space velocity. The product distribution was selective to olefins and CO at high temperatures (650 °C) but was selective to aromatics (benzene and toluene) at intermediate temperatures (450–600 °C). At low temperatures (450 °C), benzofuran and coke contributed 60% of the carbon selectivity. Several different reactions were occurring for furan conversion over zeolites. Some important reactions that we have identified in this study include Diels–Alder condensation (e.g., two furans form benzofuran and water), decarbonylation (e.g., furan forms CO and allene), oligomerization (allene forms olefins and aromatics plus hydrogen), and alkylation (e.g., furan plus olefins). The product distribution was far from thermodynamic equilibrium.

  4. Biomass burning influence on high-latitude tropospheric ozone and reactive nitrogen in summer 2008: a multi-model analysis based on POLMIP simulations

    E-Print Network [OSTI]

    Arnold, S. R.

    We have evaluated tropospheric ozone enhancement in air dominated by biomass burning emissions at high latitudes (> 50° N) in July 2008, using 10 global chemical transport model simulations from the POLMIP multi-model ...

  5. Sensitivity and Scenario Results

    E-Print Network [OSTI]

    Yu, Winston

    Presents the results of various scenarios using models used to study water, climate, agriculture and the economy in Pakistan's Indus Basin, and discusses the policy and investment implications. The water allocations per ...

  6. Adjusting lidar-derived digital terrain models in coastal marshes based on estimated aboveground biomass density

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

    Medeiros, Stephen; Hagen, Scott; Weishampel, John; Angelo, James

    2015-03-25

    Digital elevation models (DEMs) derived from airborne lidar are traditionally unreliable in coastal salt marshes due to the inability of the laser to penetrate the dense grasses and reach the underlying soil. To that end, we present a novel processing methodology that uses ASTER Band 2 (visible red), an interferometric SAR (IfSAR) digital surface model, and lidar-derived canopy height to classify biomass density using both a three-class scheme (high, medium and low) and a two-class scheme (high and low). Elevation adjustments associated with these classes using both median and quartile approaches were applied to adjust lidar-derived elevation values closer tomore »true bare earth elevation. The performance of the method was tested on 229 elevation points in the lower Apalachicola River Marsh. The two-class quartile-based adjusted DEM produced the best results, reducing the RMS error in elevation from 0.65 m to 0.40 m, a 38% improvement. The raw mean errors for the lidar DEM and the adjusted DEM were 0.61 ± 0.24 m and 0.32 ± 0.24 m, respectively, thereby reducing the high bias by approximately 49%.« less

  7. Combined Estimation of Hydrogeologic Conceptual Model, Parameter, and Scenario Uncertainty with Application to Uranium Transport at the Hanford Site 300 Area

    SciTech Connect (OSTI)

    Meyer, Philip D.; Ye, Ming; Rockhold, Mark L.; Neuman, Shlomo P.; Cantrell, Kirk J.

    2007-07-30

    This report to the Nuclear Regulatory Commission (NRC) describes the development and application of a methodology to systematically and quantitatively assess predictive uncertainty in groundwater flow and transport modeling that considers the combined impact of hydrogeologic uncertainties associated with the conceptual-mathematical basis of a model, model parameters, and the scenario to which the model is applied. The methodology is based on a n extension of a Maximum Likelihood implementation of Bayesian Model Averaging. Model uncertainty is represented by postulating a discrete set of alternative conceptual models for a site with associated prior model probabilities that reflect a belief about the relative plausibility of each model based on its apparent consistency with available knowledge and data. Posterior model probabilities are computed and parameter uncertainty is estimated by calibrating each model to observed system behavior; prior parameter estimates are optionally included. Scenario uncertainty is represented as a discrete set of alternative future conditions affecting boundary conditions, source/sink terms, or other aspects of the models, with associated prior scenario probabilities. A joint assessment of uncertainty results from combining model predictions computed under each scenario using as weight the posterior model and prior scenario probabilities. The uncertainty methodology was applied to modeling of groundwater flow and uranium transport at the Hanford Site 300 Area. Eight alternative models representing uncertainty in the hydrogeologic and geochemical properties as well as the temporal variability were considered. Two scenarios represent alternative future behavior of the Columbia River adjacent to the site were considered. The scenario alternatives were implemented in the models through the boundary conditions. Results demonstrate the feasibility of applying a comprehensive uncertainty assessment to large-scale, detailed groundwater flow and transport modeling and illustrate the benefits of the methodology I providing better estimates of predictive uncertiay8, quantitative results for use in assessing risk, and an improved understanding of the system behavior and the limitations of the models.

  8. Implications of Model Configurations on Capacity Planning Decisions: Scenario Case Studies of the Western Interconnection and Colorado Region using the Resource Planning Model

    Broader source: Energy.gov [DOE]

    In this report, we analyze the impacts of model configuration and detail in capacity expansion models, computational tools used by utility planners looking to find the least cost option for planning the system and by researchers or policy makers attempting to understand the effects of various policy implementations. The present analysis focuses on the importance of model configurations—particularly those related to capacity credit, dispatch modeling, and transmission modeling—to the construction of scenario futures. Our analysis is primarily directed toward advanced tools used for utility planning and is focused on those impacts that are most relevant to decisions with respect to future renewable capacity deployment. To serve this purpose, we develop and employ the NREL Resource Planning Model to conduct a case study analysis that explores 12 separate capacity expansion scenarios of the Western Interconnection through 2030.

  9. Biomass pretreatment

    DOE Patents [OSTI]

    Hennessey, Susan Marie; Friend, Julie; Elander, Richard T; Tucker, III, Melvin P

    2013-05-21

    A method is provided for producing an improved pretreated biomass product for use in saccharification followed by fermentation to produce a target chemical that includes removal of saccharification and or fermentation inhibitors from the pretreated biomass product. Specifically, the pretreated biomass product derived from using the present method has fewer inhibitors of saccharification and/or fermentation without a loss in sugar content.

  10. Models of the Collisional Damping Scenario for Ice Giant Planets and Kuiper Belt Formatio

    E-Print Network [OSTI]

    Harold F. Levison; Alessandro Morbidelli

    2007-01-18

    Chiang et al. 2006, hereafter C06 have recently proposed that the observed structure of the Kuiper belt could be the result of a dynamical instability of a system of ~5 primordial ice giant planets in the outer Solar System. According to this scenario, before the instability occurred, these giants were growing in a highly collisionally damped environment according to the arguments in Goldreich et al. (2004a,b, hereafter G04). Here we test this hypothesis with a series of numerical simulations using a new code designed to incorporate the dynamical effects of collisions. We find that we cannot reproduce the observed Solar System. In particular, G04 and C06 argue that during the instability, all but two of the ice giants would be ejected from the Solar System by Jupiter and Saturn, leaving Uranus and Neptune behind. We find that ejections are actually rare and that instead the systems spread outward. This always leads to a configuration with too many planets that are too far from the Sun. Thus, we conclude that both G04's scheme for the formation of Uranus and Neptune and C06's Kuiper belt formation scenario are not viable in their current forms.

  11. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY not substantively affect the findings or recommendations of the study. 2. Introduction The Biomass to Energy (B2E) Project is developing a comprehensive forest biomass-to- electricity model to identify and analyze

  12. Multi-scale chemistry modeling of the thermochemical conversion of biomass in a fluidized bed gasifier

    E-Print Network [OSTI]

    Stark, Addison Killean

    2015-01-01

    The thermochemical conversion of biomass to fuels via syn-gas offers a promising approach to producing fungible substitutes for petroleum derived fuels and chemicals. In order for these fuels to be adopted, they must be ...

  13. Modeling the coupled effects of heat transfer. thermochemistry, and kinetics during biomass torrefaction

    E-Print Network [OSTI]

    Bates, Richard Burton

    2012-01-01

    Torrefaction is a thermal pretreatment process which improves the energy density, storage, grinding, and handling characteristics of raw biomass. Research efforts to date have focused on empirical measurements of the fuel ...

  14. A BIOMASS-BASED MODEL TO ESTIMATE THE PLAUSIBILITY OF EXOPLANET BIOSIGNATURE GASES

    E-Print Network [OSTI]

    Seager, Sara

    Biosignature gas detection is one of the ultimate future goals for exoplanet atmosphere studies. We have created a framework for linking biosignature gas detectability to biomass estimates, including atmospheric photochemistry ...

  15. LONG-TERM GLOBAL WATER USE PROJECTIONS USING SIX SOCIOECONOMIC SCENARIOS IN AN INTEGRATED ASSESSMENT MODELING FRAMEWORK

    SciTech Connect (OSTI)

    Hejazi, Mohamad I.; Edmonds, James A.; Clarke, Leon E.; Kyle, G. Page; Davies, Evan; Chaturvedi, Vaibhav; Wise, Marshall A.; Patel, Pralit L.; Eom, Jiyong; Calvin, Katherine V.; Moss, Richard H.; Kim, Son H.

    2014-01-19

    In this paper, we assess future water demands for the agricultural (irrigation and livestock), energy (electricity generation, primary energy production and processing), industrial (manufacturing and mining), and municipal sectors, by incorporating water demands into a technologically-detailed global integrated assessment model of energy, agriculture, and climate change – the Global Change Assessment Model (GCAM). Base-year water demands—both gross withdrawals and net consumptive use—are assigned to specific modeled activities in a way that maximizes consistency between bottom-up estimates of water demand intensities of specific technologies and practices, and top-down regional and sectoral estimates of water use. The energy, industrial, and municipal sectors are represented in fourteen geopolitical regions, with the agricultural sector further disaggregated into as many as eighteen agro-ecological zones (AEZs) within each region. We assess future water demands representing six socioeconomic scenarios, with no constraints imposed by future water supplies. The scenarios observe increases in global water withdrawals from 3,578 km3 year-1 in 2005 to 5,987 – 8,374 km3 year-1 in 2050, and to 4,719 – 12,290 km3 year-1 in 2095. Comparing the projected total regional water withdrawals to the historical supply of renewable freshwater, the Middle East exhibits the highest levels of water scarcity throughout the century, followed by India; water scarcity increases over time in both of these regions. In contrast, water scarcity improves in some regions with large base-year electric sector withdrawals, such as the USA and Canada, due to capital stock turnover and the almost complete phase-out of once-through flow cooling systems. The scenarios indicate that: 1) water is likely a limiting factor in climate change mitigation policies, 2) many regions can be expected to increase reliance on non-renewable groundwater, water reuse, and desalinated water, but they also highlight an important role for development and deployment of water conservation technologies and practices.

  16. BIOMASS-TO-ENERGY FEASIBILITY STUDY

    SciTech Connect (OSTI)

    Cecil T. Massie

    2002-09-03

    The purpose of this study was to assess the economic and technical feasibility of producing electricity and thermal energy from biomass by gasification. For an economic model we chose a large barley malting facility operated by Rahr Malting Co. in Shakopee, Minnesota. This plant provides an excellent backdrop for this study because it has both large electrical loads and thermal loads that allowed us to consider a wide range of sizes and technical options. In the end, eleven scenarios were considered ranging from 3.1 megawatts (MWe) to 19.8 MWe. By locating the gasification and generation at an agricultural product processing plant with large electrical and thermal loads, the expectation was that some of the limitations of stand-alone biomass power plants would be overcome. In addition, since the process itself created significant volumes of low value biomass, the hope was that most of the biomass gathering and transport issues would be handled as well. The development of low-BTU gas turbines is expected to fill a niche between the upper limit of multiple spark ignited engine set systems around 5 MWe and the minimum reasonable scale for steam turbine systems around 10 MWe.

  17. CATALYTIC BIOMASS LIQUEFACTION

    E-Print Network [OSTI]

    Ergun, Sabri

    2013-01-01

    Solvent Systems Catalystic Biomass Liquefaction Investigatereactor Product collection Biomass liquefaction process12-13, 1980 CATALYTIC BIOMASS LIQUEFACTION Sabri Ergun,

  18. Enduse Global Emissions Mitigation Scenarios (EGEMS): A New Generation of Energy Efficiency Policy Planning Models

    E-Print Network [OSTI]

    McNeil, Michael A.

    2010-01-01

    driver for the energy demand forecast. The basic assumptionglobal bottom-up energy demand forecasts, and a frameworkin modelling energy demand is to forecast activity. Activity

  19. Ground motion modeling of Hayward fault scenario earthquakes II:Simulation of long-period and broadband ground motions

    SciTech Connect (OSTI)

    Aagaard, B T; Graves, R W; Rodgers, A; Brocher, T M; Simpson, R W; Dreger, D; Petersson, N A; Larsen, S C; Ma, S; Jachens, R C

    2009-11-04

    We simulate long-period (T > 1.0-2.0 s) and broadband (T > 0.1 s) ground motions for 39 scenarios earthquakes (Mw 6.7-7.2) involving the Hayward, Calaveras, and Rodgers Creek faults. For rupture on the Hayward fault we consider the effects of creep on coseismic slip using two different approaches, both of which reduce the ground motions compared with neglecting the influence of creep. Nevertheless, the scenario earthquakes generate strong shaking throughout the San Francisco Bay area with about 50% of the urban area experiencing MMI VII or greater for the magnitude 7.0 scenario events. Long-period simulations of the 2007 Mw 4.18 Oakland and 2007 Mw 4.5 Alum Rock earthquakes show that the USGS Bay Area Velocity Model version 08.3.0 permits simulation of the amplitude and duration of shaking throughout the San Francisco Bay area, with the greatest accuracy in the Santa Clara Valley (San Jose area). The ground motions exhibit a strong sensitivity to the rupture length (or magnitude), hypocenter (or rupture directivity), and slip distribution. The ground motions display a much weaker sensitivity to the rise time and rupture speed. Peak velocities, peak accelerations, and spectral accelerations from the synthetic broadband ground motions are, on average, slightly higher than the Next Generation Attenuation (NGA) ground-motion prediction equations. We attribute at least some of this difference to the relatively narrow width of the Hayward fault ruptures. The simulations suggest that the Spudich and Chiou (2008) directivity corrections to the NGA relations could be improved by including a dependence on the rupture speed and increasing the areal extent of rupture directivity with period. The simulations also indicate that the NGA relations may under-predict amplification in shallow sedimentary basins.

  20. Agriculture and Climate Change in Global Scenarios: Why Don't the Models Agree

    SciTech Connect (OSTI)

    Nelson, Gerald; van der Mensbrugghe, Dominique; Ahammad, Helal; Blanc, Elodie; Calvin, Katherine V.; Hasegawa, Tomoko; Havlik, Petr; Heyhoe, Edwina; Kyle, G. Page; Lotze-Campen, Hermann; von Lampe, Martin; Mason d'Croz, Daniel; van Meijl, Hans; Mueller, C.; Reilly, J. M.; Robertson, Richard; Sands, Ronald; Schmitz, Christoph; Tabeau, Andrzej; Takahashi, Kiyoshi; Valin, Hugo; Willenbockel, Dirk

    2014-01-01

    Agriculture is unique among economic sectors in the nature of impacts from climate change. The production activity that transforms inputs into agricultural outputs makes direct use of weather inputs. Previous studies of the impacts of climate change on agriculture have reported substantial differences in outcomes of key variables such as prices, production, and trade. These divergent outcomes arise from differences in model inputs and model specification. The goal of this paper is to review climate change results and underlying determinants from a model comparison exercise with 10 of the leading global economic models that include significant representation of agriculture. By providing common productivity drivers that include climate change effects, differences in model outcomes are reduced. All models show higher prices in 2050 because of negative productivity shocks from climate change. The magnitude of the price increases, and the adaptation responses, differ significantly across the various models. Substantial differences exist in the structural parameters affecting demand, area, and yield, and should be a topic for future research.

  1. AGCO Biomass Solutions: Biomass 2014 Presentation

    Broader source: Energy.gov [DOE]

    Plenary IV: Advances in Bioenergy Feedstocks—From Field to Fuel AGCO Biomass Solutions: Biomass 2014 Presentation Glenn Farris, Marketing Manager Biomass, AGCO Corporation

  2. Modelling Lost Person Behaviour and Intelligent Unmanned Aerial Vehicles in a Wilderness Search and Rescue Scenario 

    E-Print Network [OSTI]

    DeRiggi, John

    2013-01-11

    ’re lost should be reasonable input variables into a model attempting to predict the lost person’s most likely path. Taken a significant step further, if unmanned aerial vehicles enabled with terrain recognition and navigation capabilities derived from...

  3. Using CORE Model-Based Systems Engineering Software to Support Program Management in the U.S. Department of Energy Office of the Biomass Project: Preprint

    SciTech Connect (OSTI)

    Riley, C.; Sandor, D.; Simpkins, P.

    2006-11-01

    This paper describes how a model-based systems engineering software, CORE, is helping the U. S. Department of Energy's Office of Biomass Program assist with bringing biomass-derived biofuels to the market. This software tool provides information to guide informed decision-making as biomass-to-biofuels systems are advanced from concept to commercial adoption. It facilitates management and communication of program status by automatically generating custom reports, Gantt charts, and tables using the widely available programs of Microsoft Word, Project and Excel.

  4. Biomass Torrefaction Process Review and Moving Bed Torrefaction System Model Development

    SciTech Connect (OSTI)

    Jaya Shakar Tumuluru; Shahab Sokhansanj; Christopher T. Wright; Richard D. Boardman

    2010-08-01

    Torrefaction is currently developing as an important preprocessing step to improve the quality of biomass in terms of physical properties, and proximate and ultimate composition. Torrefaction is a slow heating of biomass in an inert or reduced environment to a maximum temperature of 300 C. Torrefaction can also be defined as a group of products resulting from the partially controlled and isothermal pyrolysis of biomass occurring in a temperature range of 200-230 C and 270-280 C. Thus, the process can also be called a mild pyrolysis as it occurs at the lower temperature range of the pyrolysis process. At the end of the torrefaction process, a solid uniform product with lower moisture content and higher energy content than raw biomass is produced. Most of the smoke-producing compounds and other volatiles are removed during torrefaction, producing a final product that will have a lower mass but a higher heating value. An important aspect of research is to establish a degree of torrefaction where gains in heating value offset the loss of mass. There is a lack of literature on torrefaction reactor designs and a design sheet for estimating the dimensions of the torrefier based on capacity. This study includes (a) conducting a detailed review on the torrefaction of biomass in terms of understanding the process, product properties, off-gas compositions, and methods used, and (b) to design a moving bed torrefier, taking into account the basic fundamental heat and mass transfer calculations. Specific objectives include calculating the dimensions like diameter and height of the moving packed bed for different capacities, designing the heat loads and gas flow rates, and developing an interactive excel sheet where the user can define design specifications. In this report, 25-1000 kg/hr are used in equations for the design of the torrefier, examples of calculations, and specifications for the torrefier.

  5. Biomass Torrefaction Process Review and Moving Bed Torrefaction System Model Development

    SciTech Connect (OSTI)

    Jaya Shakar Tumuluru; Shahab Sokhansanj; Christopher T. Wright

    2010-08-01

    Torrefaction is currently developing as an important preprocessing step to improve the quality of biomass in terms of physical properties, and proximate and ultimate composition. Torrefaction is a slow heating of biomass in an inert or reduced environment to a maximum temperature of 300°C. Torrefaction can also be defined as a group of products resulting from the partially controlled and isothermal pyrolysis of biomass occurring in a temperature range of 200–230ºC and 270–280ºC. Thus, the process can also be called a mild pyrolysis as it occurs at the lower temperature range of the pyrolysis process. At the end of the torrefaction process, a solid uniform product with lower moisture content and higher energy content than raw biomass is produced. Most of the smoke-producing compounds and other volatiles are removed during torrefaction, producing a final product that will have a lower mass but a higher heating value. An important aspect of research is to establish a degree of torrefaction where gains in heating value offset the loss of mass. There is a lack of literature on torrefaction reactor designs and a design sheet for estimating the dimensions of the torrefier based on capacity. This study includes a) conducting a detailed review on the torrefaction of biomass in terms of understanding the process, product properties, off-gas compositions, and methods used, and b) to design a moving bed torrefier, taking into account the basic fundamental heat and mass transfer calculations. Specific objectives include calculating the dimensions like diameter and height of the moving packed bed for different capacities, designing the heat loads and gas flow rates, and developing an interactive excel sheet where the user can define design specifications. In this report, 25–1000 kg/hr are used in equations for the design of the torrefier, examples of calculations, and specifications for the torrefier.

  6. Ground motion modeling of the 1906 San Francisco earthquake II: Ground motion estimates for the 1906 earthquake and scenario events

    SciTech Connect (OSTI)

    Aagaard, B; Brocher, T; Dreger, D; Frankel, A; Graves, R; Harmsen, S; Hartzell, S; Larsen, S; McCandless, K; Nilsson, S; Petersson, N A; Rodgers, A; Sjogreen, B; Tkalcic, H; Zoback, M L

    2007-02-09

    We estimate the ground motions produced by the 1906 San Francisco earthquake making use of the recently developed Song et al. (2008) source model that combines the available geodetic and seismic observations and recently constructed 3D geologic and seismic velocity models. Our estimates of the ground motions for the 1906 earthquake are consistent across five ground-motion modeling groups employing different wave propagation codes and simulation domains. The simulations successfully reproduce the main features of the Boatwright and Bundock (2005) ShakeMap, but tend to over predict the intensity of shaking by 0.1-0.5 modified Mercalli intensity (MMI) units. Velocity waveforms at sites throughout the San Francisco Bay Area exhibit characteristics consistent with rupture directivity, local geologic conditions (e.g., sedimentary basins), and the large size of the event (e.g., durations of strong shaking lasting tens of seconds). We also compute ground motions for seven hypothetical scenarios rupturing the same extent of the northern San Andreas fault, considering three additional hypocenters and an additional, random distribution of slip. Rupture directivity exerts the strongest influence on the variations in shaking, although sedimentary basins do consistently contribute to the response in some locations, such as Santa Rosa, Livermore, and San Jose. These scenarios suggest that future large earthquakes on the northern San Andreas fault may subject the current San Francisco Bay urban area to stronger shaking than a repeat of the 1906 earthquake. Ruptures propagating southward towards San Francisco appear to expose more of the urban area to a given intensity level than do ruptures propagating northward.

  7. THE TRAVEL AND ENVIRONMENTAL IMPLICATIONS OF SHARED AUTONOMOUS VEHICLES, USING AGENT-BASED MODEL SCENARIOS

    E-Print Network [OSTI]

    Kockelman, Kara M.

    the rental) like Car2Go and ZipCar have quickly expanded, with the number of U.S. users doubling every one traveler wait times. Next, the model is run over one-hundred days, with driverless vehicles ferrying. As of September 2013, Google had logged over 500,000 miles driven on public roadways using cars equipped with self

  8. USE OF GENERAL CIRCULATION MODEL OUTPUT IN THE CREATION OF CLIMATE CHANGE SCENARIOS

    E-Print Network [OSTI]

    Robock, Alan

    , Sub-Saharan Africa and Venezuela, for use in biological effects models. By combining the general, and possible solar variations, and all agree that surface air temperatures will rise, pre- cipitation patterns will change, and sea level will rise. Even though such projections of the future are relatively crude

  9. Our scenario is akin to the magnetic furnace model proposed by Axford and

    E-Print Network [OSTI]

    . However, our model of the nascent solar wind is intrinsically 3-D, and the magnetic field geometry but originates below from the neighboring loops. The initial heating of the solar wind plasma is achieved, Coronal Expansion and Solar Wind (Springer-Verlag, Heidelberg, 1972). 8. E. Leer, T. E. Holzer, Solar Phys

  10. A Dual Regime Reactive Transport Model for Simulation of High Level Waste Tank Closure Scenarios - 13375

    SciTech Connect (OSTI)

    Sarkar, Sohini; Kosson, David S.; Brown, Kevin; Garrabrants, Andrew C.; Meeussen, Hans; Van der Sloot, Hans

    2013-07-01

    A numerical simulation framework is presented in this paper for estimating evolution of pH and release of major species from grout within high-level waste tanks after closure. This model was developed as part of the Cementitious Barriers Partnership. The reactive transport model consists of two parts - (1) transport of species, and (2) chemical reactions. The closure grout can be assumed to have varying extents of cracking and composition for performance assessment purposes. The partially or completely degraded grouted tank is idealized as a dual regime system comprising of a mobile region having solid materials with cracks and macro-pores, and an immobile/stagnant region having solid matrix with micropores. The transport profiles of the species are calculated by incorporating advection of species through the mobile region, diffusion of species through the immobile/stagnant region, and exchange of species between the mobile and immobile regions. A geochemical speciation code in conjunction with the pH dependent test data for a grout material is used to obtain a mineral set that best describes the trends in the test data of the major species. The dual regime reactive transport model predictions are compared with the release data from an up-flow column percolation test. The coupled model is then used to assess effects of crack state of the structure, rate and composition of the infiltrating water on the pH evolution at the grout-waste interface. The coupled reactive transport model developed in this work can be used as part of the performance assessment process for evaluating potential risks from leaching of a cracked tank containing elements of human health and environmental concern. (authors)

  11. Enduse Global Emissions Mitigation Scenarios (EGEMS): A New Generation of Energy Efficiency Policy Planning Models

    SciTech Connect (OSTI)

    McNeil, Michael A.; de la Rue du Can, Stephane; McMahon, James E.

    2009-05-29

    This paper presents efforts to date and prospective goals towards development of a modelling and analysis framework which is comprehensive enough to address the global climate crisis, and detailed enough to provide policymakers with concrete targets and achievable outcomes. In terms of energy efficiency policy, this requires coverage of the entire world, with emphasis on countries and regions with large and/or rapidly growing energy-related emissions, and analysis at the 'technology' level-building end use, transport mode or industrial process. These elements have not been fully addressed by existing modelling efforts, which usually take either a top-down approach, or concentrate on a few fully industrialized countries where energy demand is well-understood. Inclusion of details such as appliance ownership rates, use patterns and efficiency levels throughout the world allows for a deeper understanding of the demand for energy today and, more importantly, over the coming decades. This is a necessary next step for energy analysts and policy makers in assessment of mitigation potentials. The modelling system developed at LBNL over the past 3 years takes advantage of experience in end use demand and in forecasting markets for energy-consuming equipment, in combination with known technology-based efficiency opportunities and policy types. A particular emphasis has been placed on modelling energy growth in developing countries. Experiences to date include analyses covering individual countries (China and India), end uses (refrigerators and air conditioners) and policy types (standards and labelling). Each of these studies required a particular effort in data collection and model refinement--they share, however, a consistent approach and framework which allows comparison, and forms the foundation of a comprehensive analysis system leading to a roadmap to address the greenhouse gas mitigation targetslikely to be set in the coming years.

  12. Biofuel and Bioenergy implementation scenarios

    E-Print Network [OSTI]

    Biofuel and Bioenergy implementation scenarios Final report of VIEWLS WP5, modelling studies #12;Biofuel and Bioenergy implementation scenarios Final report of VIEWLS WP5, modelling studies By André of this project are to provide structured and clear data on the availability and performance of biofuels

  13. Using Pre-Modeled Scenarios to Estimate Groundwater VOC Concentrations Resulting from Vadose Zone Sources

    SciTech Connect (OSTI)

    Oostrom, Martinus; Truex, Michael J.; Rice, Amy K.; Johnson, Christian D.; Carroll, Kenneth C.; Becker, Dave; Simon, Michelle A.

    2014-04-28

    Soil vapor extraction (SVE) is a prevalent remediation approach for volatile contaminants in the vadose zone. To support selection of an appropriate endpoint for the SVE remedy, an evaluation is needed to determine whether vadose zone contamination has been diminished sufficiently to protect groundwater. When vapor-phase transport is an important component of the overall contaminant fate and transport from a vadose zone source, the contaminant concentration expected in groundwater is controlled by a limited set of parameters, including specific site dimensions, vadose zone properties, and source characteristics. An approach was developed for estimating the contaminant concentration in groundwater resulting from a contaminant source in the vadose zone based on pre-modeling contaminant transport for a matrix of parameter value combinations covering a range of potential site conditions. An interpolation and scaling process are then applied to estimate groundwater impact for site-specific conditions.

  14. Water demands for electricity generation in the U.S.: Modeling different scenarios for the water–energy nexus

    SciTech Connect (OSTI)

    Liu, Lu; Hejazi, Mohamad I.; Patel, Pralit L.; Kyle, G. Page; Davies, Evan; Zhou, Yuyu; Clarke, Leon E.; Edmonds, James A.

    2015-05-01

    Water withdrawal for electricity generation in the United States accounts for approximately half the total freshwater withdrawal. With steadily growing electricity demands, a changing climate, and limited water supplies in many water-scarce states, meeting future energy and water demands poses a significant socio-economic challenge. Employing an integrated modeling approach that can capture the energy-water interactions at regional and national scales is essential to improve our understanding of the key drivers that govern those interactions and the role of national policies. In this study, the Global Change Assessment Model (GCAM), a technologically-detailed integrated model of the economy, energy, agriculture and land use, water, and climate systems, was extended to model the electricity and water systems at the state level in the U.S. (GCAM-USA). GCAM-USA was employed to estimate future state-level electricity generation and consumption, and their associated water withdrawals and consumption under a set of six scenarios with extensive details on the generation fuel portfolio, cooling technology mix, and their associated water use intensities. Six scenarios of future water demands of the U.S. electric-sector were explored to investigate the implications of socioeconomics development and growing electricity demands, climate mitigation policy, the transition of cooling systems, electricity trade, and water saving technologies. Our findings include: 1) decreasing water withdrawals and substantially increasing water consumption from both climate mitigation and the conversion from open-loop to closed-loop cooling systems; 2) open trading of electricity benefiting energy scarce yet demand intensive states; 3) within state variability under different driving forces while across state homogeneity under certain driving force ; 4) a clear trade-off between water consumption and withdrawal for the electricity sector in the U.S. The paper discusses this withdrawal-consumption trade-off in the context of current national policies and regulations that favor decreasing withdrawals (increasing consumptive use), and the role of water saving technologies. The highly-resolved nature of this study both geographically and technologically provides a useful platform to address scientific and policy relevant and emerging issues at the heart of the water-energy nexus in the U.S.

  15. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    a Broad Suite of Potential Future Scenarios Kathleen M.Holocene, recent, and future accretion in channel marshas well as possible future trends in sediment sup- ply and

  16. Time-dependent Radiation Transfer in the Internal Shock Model Scenario for Blazar Jets

    E-Print Network [OSTI]

    Manasvita Joshi; Markus Boettcher

    2010-11-13

    We describe the time-dependent radiation transfer in blazar jets, within the internal shock model. We assume that the central engine, which consists of a black hole and an accretion disk, spews out relativistic shells of plasma with different velocity, mass, and energy. We consider a single inelastic collision between a faster (inner) and a slower (outer) moving shell. We study the dynamics of the collision and evaluate the subsequent emission of radiation via the synchrotron and synchrotron self Compton (SSC) processes after the interaction between the two shells has begun. The collision results in the formation of a forward shock (FS) and a reverse shock (RS) that convert the ordered bulk kinetic energy of the shells into magnetic field energy and accelerate the particles, which then radiate. We assume a cylindrical geometry for the emission region of the jet. We treat the self-consistent radiative transfer by taking into account the inhomogeneity in the photon density throughout the region. In this paper, we focus on understanding the effects of varying relevant input parameters on the simulated spectral energy distribution (SED) and spectral variability patterns.

  17. Proceedings of the 19th Central Hardwood Forest Conference GTR-NRS-P-142 251 A PReLIMINARy AboveGRoUND LIve bIoMASS MoDeL FoR

    E-Print Network [OSTI]

    GRoUND LIve bIoMASS MoDeL FoR UNDeRSToRy HARDwooDS FRoM ARkANSAS, LoUISIANA, AND MISSISSIPPI Don C. bragg biomass and fuel loads, but few models are available to directly quantify this component. In part to determine diameter at breast height (d.b.h.), so conventional models (e.g., the National Biomass Estimators

  18. Dispersion modeling of polycyclic aromatic hydrocarbons from combustion of biomass and fossil fuels and production of coke in Tianjin, China

    SciTech Connect (OSTI)

    Shu Tao; Xinrong Li; Yu Yang; Raymond M. Coveney, Jr.; Xiaoxia Lu; Haitao Chen; Weiran Shen [Peking University, Beijing (China). Laboratory for Earth Surface Processes, College of Environmental Sciences

    2006-08-01

    A USEPA procedure, ISCLT3 (Industrial Source Complex Long-Term), was applied to model the spatial distribution of polycyclic aromatic hydrocarbons (PAHs) emitted from various sources including coal, petroleum, natural gas, and biomass into the atmosphere of Tianjin, China. Benzo(a)pyrene equivalent concentrations (BaPeq) were calculated for risk assessment. Model results were provisionally validated for concentrations and profiles based on the observed data at two monitoring stations. The dominant emission sources in the area were domestic coal combustion, coke production, and biomass burning. Mainly because of the difference in the emission heights, the contributions of various sources to the average concentrations at receptors differ from proportions emitted. The shares of domestic coal increased from {approximately} 43% at the sources to 56% at the receptors, while the contributions of coking industry decreased from {approximately} 23% at the sources to 7% at the receptors. The spatial distributions of gaseous and particulate PAHs were similar, with higher concentrations occurring within urban districts because of domestic coal combustion. With relatively smaller contributions, the other minor sources had limited influences on the overall spatial distribution. The calculated average BaPeq value in air was 2.54 {+-} 2.87 ng/m{sup 3} on an annual basis. Although only 2.3% of the area in Tianjin exceeded the national standard of 10 ng/m{sup 3}, 41% of the entire population lives within this area. 37 refs., 9 figs.

  19. Conformal Complex Singlet Extension of the Standard Model: Scenario for Dark Matter and a Second Higgs Boson

    E-Print Network [OSTI]

    Wang, Zhi-Wei; Hanif, T; Mann, R B

    2015-01-01

    We consider a conformal complex singlet extension of the Standard Model with a Higgs portal interaction. Two different scenarios depending on whether the global $U(1)$ symmetry of the complex singlet is broken or unbroken have been studied. In the unbroken case, the decay of the complex singlet is protected by the global $U(1)$ symmetry which leads to an ideal cold dark matter candidate with approximately $100\\,\\rm{GeV}$ mass along with a significant proportion of thermal relic dark matter abundance. In the broken case, we generalize our method to incorporate a renormalization-scale optimization technique and are able to provide unique predictions for all the model's couplings and masses. We have found there exists a second Higgs boson with a mass of approximately $550\\,\\rm{GeV}$ that mixes with the known $125\\,\\rm{GeV}$ Higgs with a large mixing angle $\\sin\\theta\\approx 0.47$ consistent with current experimental limits. Furthermore, the imaginary part of the complex singlet in the broken case could provide a...

  20. Sub-national TIMES model for analyzing regional future use of Biomass and Biofuels in France and

    E-Print Network [OSTI]

    Boyer, Edmond

    the green house gas emission (GHG) by 50% by 2050. To reach these targets, biomass is expected to play

  1. Scenario Reduction and Scenario Tree Construction for Power Management Problems

    E-Print Network [OSTI]

    Römisch, Werner

    1 Scenario Reduction and Scenario Tree Construction for Power Management Problems Nicole Gr¨owe-Kuska, Holger Heitsch and Werner R¨omisch Abstract-- Portfolio and risk management problems of power utilities and corresponding probabilities to model the multivariate random data process (electrical load, stream flows

  2. A dynamical and kinematical model of the Galactic stellar halo and possible implications for galaxy formation scenarios

    E-Print Network [OSTI]

    J. Sommer-Larsen; T. C. Beers; C. Flynn; R. Wilhelm; P. R. Christensen

    1996-10-23

    We re-analyse the kinematics of the system of blue horizontal branch field (BHBF) stars in the Galactic halo (in particular the outer halo), fitting the kinematics with the model of radial and tangential velocity dispersions in the halo as a function of galactocentric distance r proposed by Sommer-Larsen, Flynn & Christensen (1994), using a much larger sample (almost 700) of BHBF stars. The basic result is that the character of the stellar halo velocity ellipsoid changes markedly from radial anisotropy at the sun to tangential anisotropy in the outer parts of the Galactic halo (r greater than approx 20 kpc). Specifically, the radial component of the stellar halo's velocity ellipsoid decreases fairly rapidly beyond the solar circle, from approx 140 +/- 10 km/s at the sun, to an asymptotic value of 89 +/- 19 km/s at large r. The rapid decrease in the radial velocity dispersion is matched by an increase in the tangential velocity dispersion, with increasing r. Our results may indicate that the Galaxy formed hierarchically (partly or fully) through merging of smaller subsystems - the 'bottom-up' galaxy formation scenario, which for quite a while has been favoured by most theorists and recently also has been given some observational credibility by HST observations of a potential group of small galaxies, at high redshift, possibly in the process of merging to a larger galaxy (Pascarelle et al 1996).

  3. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    open-loop biomass, eligible hydropower, landfill gas, andexisting and new non-hydropower renewable resources werewas included. In contrast, hydropower and municipal solid

  4. Biomass Surface Characterization Laboratory

    E-Print Network [OSTI]

    the recalcitrant nature of biomass feedstocks and the performance of techniques to deconstruct biomass NREL of biomass feedstocks. BSCL imaging capabilities include: · Confocal microscopy and Raman microscopy

  5. An Electricity-focused Economic Input-output Model: Life-cycle Assessment and Policy Implications of Future Electricity Generation Scenarios

    E-Print Network [OSTI]

    on the environmental impacts associated with electricity consumption, and that interstate trading tends to makeAn Electricity-focused Economic Input-output Model: Life-cycle Assessment and Policy Implications of Future Electricity Generation Scenarios Joe Marriott Submitted in Partial Fulfillment of the Requirements

  6. The Influence on Climate Change of Differing Scenarios for Future Development Analyzed Using the MIT Integrated Global System Model

    E-Print Network [OSTI]

    Prinn, Ronald G.

    A wide variety of scenarios for future development have played significant roles in climate policy discussions. This paper presents projections of greenhouse gas (GHG) concentrations, sea level rise due to thermal expansion ...

  7. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    M, Iacobellis S. 2012. Climate change scenarios for the Sanin a century of climate change. PLoS ONE [Internet]. [citedPanel on Climate Change. 2007. Contribution of working group

  8. Biomass Feedstocks

    Broader source: Energy.gov [DOE]

    A feedstock is defined as any renewable, biological material that can be used directly as a fuel, or converted to another form of fuel or energy product. Biomass feedstocks are the plant and algal materials used to derive fuels like ethanol, butanol, biodiesel, and other hydrocarbon fuels. Examples of biomass feedstocks include corn starch, sugarcane juice, crop residues such as corn stover and sugarcane bagasse, purpose-grown grass crops, and woody plants. The Bioenergy Technologies Office works in partnership with the U.S. Department of Agriculture (USDA), national laboratories, universities, industry, and other key stakeholders to identify and develop economically, environmentally, and socially sustainable feedstocks for the production of energy, including transportation fuels, electrical power and heat, and other bioproducts. Efforts in this area will ultimately support the development of technologies that can provide a large and sustainable cellulosic biomass feedstock supply of acceptable quality and at a reasonable cost for use by the developing U.S. advanced biofuel industry.

  9. Current generation by helicons and lower hybrid waves in modern tokamaks and reactors ITER and DEMO. Scenarios, modeling and antennae

    SciTech Connect (OSTI)

    Vdovin, V. L., E-mail: vdov@nfi.kiae.ru [National Research Centre 'Kurchatov Institute,' (Russian Federation)

    2013-02-15

    The innovative concept and 3D full-wave code modeling the off-axis current drive by radio-frequency (RF) waves in large-scale tokamaks, ITER and DEMO, for steady-state operation with high efficiency is proposed. The scheme uses the helicon radiation (fast magnetosonic waves at high (20-40) ion cyclotron frequency harmonics) at frequencies of 500-700 MHz propagating in the outer regions of the plasmas with a rotational transform. It is expected that the current generated by helicons, in conjunction with the bootstrap current, ensure the maintenance of a given value of the total current in the stability margin q(0) {>=} 2 and q(a) {>=} 4, and will help to have regimes with a negative magnetic shear and internal transport barrier to ensure stability at high normalized plasma pressure {beta}{sub N} > 3 (the so-called advanced scenarios) of interest for the commercial reactor. Modeling with full-wave three-dimensional codes PSTELION and STELEC showed flexible control of the current profile in the reactor plasmas of ITER and DEMO, using multiple frequencies, the positions of the antennae and toroidal wave slow down. Also presented are the results of simulations of current generation by helicons in the DIII-D, T-15MD, and JT-60AS tokamaks. Commercially available continuous-wave klystrons of the MW/tube range are promising for commercial stationary fusion reactors. The compact antennae of the waveguide type are proposed, and an example of a possible RF system for today's tokamaks is given. The advantages of the scheme (partially tested at lower frequencies in tokamaks) are a significant decline in the role of parametric instabilities in the plasma periphery, the use of electrically strong resonator-waveguide type antennae, and substantially greater antenna-plasma coupling.

  10. DANISHBIOETHANOLCONCEPT Biomass conversion for

    E-Print Network [OSTI]

    DANISHBIOETHANOLCONCEPT Biomass conversion for transportation fuel Concept developed at RISØ and DTU Anne Belinda Thomsen (RISØ) Birgitte K. Ahring (DTU) #12;DANISHBIOETHANOLCONCEPT Biomass: Biogas #12;DANISHBIOETHANOLCONCEPT Pre-treatment Step Biomass is macerated The biomass is cut in small

  11. Biomass shock pretreatment

    DOE Patents [OSTI]

    Holtzapple, Mark T.; Madison, Maxine Jones; Ramirez, Rocio Sierra; Deimund, Mark A.; Falls, Matthew; Dunkelman, John J.

    2014-07-01

    Methods and apparatus for treating biomass that may include introducing a biomass to a chamber; exposing the biomass in the chamber to a shock event to produce a shocked biomass; and transferring the shocked biomass from the chamber. In some aspects, the method may include pretreating the biomass with a chemical before introducing the biomass to the chamber and/or after transferring shocked biomass from the chamber.

  12. Rooftop Photovoltaics Market Penetration Scenarios

    SciTech Connect (OSTI)

    Paidipati, J.; Frantzis, L.; Sawyer, H.; Kurrasch, A.

    2008-02-01

    The goal of this study was to model the market penetration of rooftop photovoltaics (PV) in the United States under a variety of scenarios, on a state-by-state basis, from 2007 to 2015.

  13. Modeling of the reburn process with the use of feedlot biomass as a reburn fuel 

    E-Print Network [OSTI]

    Colmegna, Giacomo

    2009-05-15

    CHAPTER I INTRODUCTION ....................................................................................... 1 Brief description of a coal burner.......................................................... 5 II LITERATURE REVIEW............................................................................... 23 General outline of the reburn model.................................................... 24 Assumptions ........................................................................................ 29 Main burner modeling...

  14. Integrated assessment of the sustainability of biomass

    E-Print Network [OSTI]

    Pennycook, Steve

    Integrated assessment of the sustainability of biomass supply chains Dr. Floor van der Hilst · Previous work on sustainable biomass supply chains: ­ Land use change modeling ­ Dynamic Cost supply chains ­ Future work and potential collaboration #12;Rationale · The total demand for biomass for energy

  15. REGIONAL MODELING OF LIVE AND DEAD WOODY BIOMASS FOR THE EASTERN U.S. Robert A. Mickler, Todd S. Earnhardt, Jennifer A. Moore, David C.

    E-Print Network [OSTI]

    in atmospheric carbon dioxide, air temperature, and variability in precipitation will increase fire seasonal data, species-specific forest allometric biomass equations, and remotely sensed land cover. Live tree of the research described here is to utilize remotely sensed forest cover data linked to a productivity model

  16. Universality and diversity of the protein folding scenarios: a comprehensive analysis with the aid of a lattice model

    E-Print Network [OSTI]

    Mirny, Leonid

    Universality and diversity of the protein folding scenarios: a comprehensive analysis with the aid of intermediates in protein folding has been a matter of great controversy. Although it was widely believed, experimental evidence has been accumulating that small proteins fold fast without any detectable intermediates

  17. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    energy sites have lower accumulation rates of both organic and inorganic material,low-energy sites. where ? b is the density of the materialMATERIALS AND METHODS scenarios correspond to marshes that receive high amounts of sediment because of their position in high energy,

  18. Optimization of a photobioreactor biomass production using natural light

    E-Print Network [OSTI]

    Grognard, Frédéric; Pierre, Masci; Bernard, Olivier

    2010-01-01

    We address the question of optimization of the biomass long term productivity in the framework of microalgal biomass production in photobioreactors under the influence of day/night cycles. For that, we propose a simple bioreactor model accounting for light attenuation in the reactor due to biomass density and obtain the control law that optimizes productivity over a single day through the application of Pontryagin's maximum principle, with the dilution rate being the control. An important constraint on the obtained solution is that the biomass in the reactor should be at the same level at the beginning and at the end of the day so that the same control can be applied everyday and optimizes the long term productivity. Several scenarios are possible depending on the microalgae's strain parameters and the maximal admissible value of the dilution rate: bang-bang or bang-singular-bang control or, if the growth rate of the algae is very strong in the presence of light, constant maximal dilution. A bifurcation diagr...

  19. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    COVERED (From - To) Renewable Energy and Efficiency Modelinga Common High Renewable Energy Penetration Scenario in 2025OnLocation) National Renewable Energy Laboratory 1617 Cole

  20. Viability of the Matter Bounce Scenario

    E-Print Network [OSTI]

    Jaume de Haro; Jaume Amorós

    2014-11-27

    It is shown that teleparallel $F({\\mathcal T})$ theories of gravity combined with Loop Quantum Cosmology support a Matter Bounce Scenario which is an alternative to the inflation scenario in the Big Bang paradigm. It is checked thatthese bouncing models provide theoretical data that fits well with the current observational data, allowing the viability of the Matter Bounce Scenario.

  1. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    SciTech Connect (OSTI)

    Blair, N.; Jenkin, T.; Milford, J.; Short, W.; Sullivan, P.; Evans, D.; Lieberman, E.; Goldstein, G.; Wright, E.; Jayaraman, K.; Venkatech, B.; Kleiman, G.; Namovicz, C.; Smith, B.; Palmer, K.; Wiser, R.; Wood, F.

    2009-09-30

    The Renewable Energy and Efficiency Modeling and Analysis Partnership (REMAP) sponsors ongoing workshops to discuss individual 'renewable' technologies, energy/economic modeling, and - to some extent - policy issues related to renewable energy. Since 2002, the group has organized seven workshops, each focusing on a different renewable technology (geothermal, solar, wind, etc.). These workshops originated and continue to be run under an informal partnership of the Environmental Protection Agency (EPA), the Department of Energy's (DOE) Office of Energy Efficiency and Renewable Energy (EERE), the National Renewable Energy Laboratory (NREL), and the American Council on Renewable Energy (ACORE). EPA originally funded the activities, but support is now shared between EPA and EERE. REMAP has a wide range of participating analysts and models/modelers that come from government, the private sector, and academia. Modelers include staff from the Energy Information Administration (EIA), the American Council for an Energy-Efficient Economy (ACEEE), NREL, EPA, Resources for the Future (RFF), Argonne National Laboratory (ANL), Northeast States for Coordinated Air Use Management (NESCAUM), Regional Economic Models Inc. (REMI), ICF International, OnLocation Inc., and Boston University. The working group has more than 40 members, which also includes representatives from DOE, Lawrence Berkeley National Laboratory (LBNL), Union of Concerned Scientists (UCS), Massachusetts Renewable Energy Trust, Federal Energy Regulatory Commission (FERC), and ACORE. This report summarizes the activities and findings of the REMAP activity that started in late 2006 with a kickoff meeting, and concluded in mid-2008 with presentations of final results. As the project evolved, the group compared results across models and across technologies rather than just examining a specific technology or activity. The overall goal was to better understand how and why different energy models give similar and/or different answers in response to a set of focused energy-related questions. The focus was on understanding reasons for model differences, not on policy implications, even though a policy of high renewable penetration was used for the analysis. A group process was used to identify the potential question (or questions) to be addressed through the project. In late 2006, increasing renewable energy penetration in the electricity sector was chosen from among several options as the general policy to model. From this framework, the analysts chose a renewable portfolio standard (RPS) as the way to implement the required renewable energy market penetration in the models. An RPS was chosen because it was (i) of interest and represented the group's consensus choice, and (ii) tractable and not too burdensome for the modelers. Because the modelers and analysts were largely using their own resources, it was important to consider the degree of effort required. In fact, several of the modelers who started this process had to discontinue participation because of other demands on their time. Federal and state RPS policy is an area of active political interest and debate. Recognizing this, participants used this exercise to gain insight into energy model structure and performance. The results are not intended to provide any particular insight into policy design or be used for policy advocacy, and participants are not expected to form a policy stance based on the outcomes of the modeling. The goals of this REMAP project - in terms of the main topic of renewable penetration - were to: (1) Compare models and understand why they may give different results to the same question, (2) Improve the rigor and consistency of assumptions used across models, and (3) Evaluate the ability of models to measure the impacts of high renewable-penetration scenarios.

  2. Scenarios for Deep Carbon Emission Reductions from Electricity by 2050 in Western North America Using the SWITCH Electric Power Sector Planning Model

    E-Print Network [OSTI]

    Nelson, James Henry

    2013-01-01

    deployment   of   CCS   should   be   shifted   away   from   coal   and   towards   dispatchable   natural  gas  and  possibly  biomass.  

  3. Biosorption of Trivalent Chromium on the Brown Seaweed Biomass

    E-Print Network [OSTI]

    Volesky, Bohumil

    Biosorption of Trivalent Chromium on the Brown Seaweed Biomass Y E O U N G - S A N G Y U N , D O N brown alga Ecklonia biomass as a model system. Titration of the biomass revealed that it contains that various biosorbents are able to effectively remove chromium (4-11). Some of the biomass types have

  4. Greenhouse Gas Mitigation Options in ISEEM Global Energy Model: 2010-2050 Scenario Analysis for Least-Cost Carbon Reduction in Iron and Steel Sector

    SciTech Connect (OSTI)

    Karali, Nihan; Xu, Tengfang; Sathaye, Jayant

    2013-12-01

    The goal of the modeling work carried out in this project was to quantify long-term scenarios for the future emission reduction potentials in the iron and steel sector. The main focus of the project is to examine the impacts of carbon reduction options in the U.S. iron and steel sector under a set of selected scenarios. In order to advance the understanding of carbon emission reduction potential on the national and global scales, and to evaluate the regional impacts of potential U.S. mitigation strategies (e.g., commodity and carbon trading), we also included and examined the carbon reduction scenarios in China’s and India’s iron and steel sectors in this project. For this purpose, a new bottom-up energy modeling framework, the Industrial Sector Energy Efficiency Modeling (ISEEM), (Karali et al. 2012) was used to provide detailed annual projections starting from 2010 through 2050. We used the ISEEM modeling framework to carry out detailed analysis, on a country-by-country basis, for the U.S., China’s, and India’s iron and steel sectors. The ISEEM model applicable to iron and steel section, called ISEEM-IS, is developed to estimate and evaluate carbon emissions scenarios under several alternative mitigation options - including policies (e.g., carbon caps), commodity trading, and carbon trading. The projections will help us to better understand emission reduction potentials with technological and economic implications. The database for input of ISEEM-IS model consists of data and information compiled from various resources such as World Steel Association (WSA), the U.S. Geological Survey (USGS), China Steel Year Books, India Bureau of Mines (IBM), Energy Information Administration (EIA), and recent LBNL studies on bottom-up techno-economic analysis of energy efficiency measures in the iron and steel sector of the U.S., China, and India, including long-term steel production in China. In the ISEEM-IS model, production technology and manufacturing details are represented, in addition to the extensive data compiled from recent studies on bottom-up representation of efficiency measures for the sector. We also defined various mitigation scenarios including long-term production trends to project country-specific production, energy use, trading, carbon emissions, and costs of mitigation. Such analyses can provide useful information to assist policy-makers when considering and shaping future emissions mitigation strategies and policies. The technical objective is to analyze the costs of production and CO{sub 2} emission reduction in the U.S, China, and India’s iron and steel sectors under different emission reduction scenarios, using the ISEEM-IS as a cost optimization model. The scenarios included in this project correspond to various CO{sub 2} emission reduction targets for the iron and steel sector under different strategies such as simple CO{sub 2} emission caps (e.g., specific reduction goals), emission reduction via commodity trading, and emission reduction via carbon trading.

  5. Modeling The NOx Emissions In A Low NOx Burner While Fired With Pulverized Coal And Dairy Biomass Blends 

    E-Print Network [OSTI]

    Uggini, Hari

    2012-07-16

    by themselves already require cleanup technology; newer regulations will require development of new and economical technologies. Using a blend of traditional fuels & biomass is a promising technology to reduce NOX emissions. Experiments conducted previously...

  6. The reduction of plankton biomass induced by mesoscale stirring: a modeling study in the Benguela upwelling

    E-Print Network [OSTI]

    Ismael Hernández-Carrasco; Vincent Rossi; Emilio Hernández-García; Veronique Garçon; Cristóbal López

    2013-11-05

    Recent studies, both based on remote sensed data and coupled models, showed a reduction of biological productivity due to vigorous horizontal stirring in upwelling areas. In order to better understand this phenomenon, we consider a system of oceanic flow from the Benguela area coupled with a simple biogeochemical model of Nutrient-Phyto-Zooplankton (NPZ) type. For the flow three different surface velocity fields are considered: one derived from satellite altimetry data, and the other two from a regional numerical model at two different spatial resolutions. We compute horizontal particle dispersion in terms of Lyapunov Exponents, and analyzed their correlations with phytoplankton concentrations. Our modelling approach confirms that in the south Benguela there is a reduction of biological activity when stirring is increased. Two-dimensional offshore advection and latitudinal difference in Primary Production, also mediated by the flow, seem to be the dominant processes involved. We estimate that mesoscale processes are responsible for 30 to 50% of the offshore fluxes of biological tracers. In the northern area, other factors not taken into account in our simulation are influencing the ecosystem. We suggest explanations for these results in the context of studies performed in other eastern boundary upwelling areas.

  7. CATALYTIC LIQUEFACTION OF BIOMASS

    E-Print Network [OSTI]

    Seth, Manu

    2012-01-01

    liquid Fuels from Biomass: "Catalyst Screening and KineticUC-61 (l, RCO osn CDL or BIOMASS CATALYTIC LIQUEFACTION ManuCATALYTIC LIQUEFACTION OF BIOMASS Manu Seth, Roger Djafar,

  8. CATALYTIC BIOMASS LIQUEFACTION

    E-Print Network [OSTI]

    Ergun, Sabri

    2013-01-01

    Contractors' Meeting Biomass Energy Systems Branch Berkeley,The Department of Energy's Biomass Liquefaction Testand energy balances, was not possible. One important question remaining unanswered was whether aqueous biomass

  9. CATALYTIC BIOMASS LIQUEFACTION

    E-Print Network [OSTI]

    Ergun, Sabri

    2013-01-01

    LBL-11 019 UC-61 CATALYTIC BIOMASS LIQUEFACTION Sabri Ergun,Catalytic Liquefaction of Biomass,n M, Seth, R. Djafar, G.of California. CATALYTIC BIOMASS LIQUEFACTION QUARTERLY

  10. An Integrated Modeling and Data Management Strategy for Cellulosic Biomass Production Decisions

    SciTech Connect (OSTI)

    David J. Muth Jr.; K. Mark Bryden; Joshua B. Koch

    2012-07-01

    Emerging cellulosic bioenergy markets can provide land managers with additional options for crop production decisions. Integrating dedicated bioenergy crops such as perennial grasses and short rotation woody species within the agricultural landscape can have positive impacts on several environmental processes including increased soil organic matter in degraded soils, reduced sediment loading in watersheds, lower green house gas (GHG) fluxes, and reduced nutrient loading in watersheds. Implementing this type of diverse bioenergy production system in a way that maximizes potential environmental benefits requires a dynamic integrated modeling and data management strategy. This paper presents a strategy for designing diverse bioenergy cropping systems within the existing row crop production landscape in the midwestern United States. The integrated model developed quantifies a wide range environmental processes including soil erosion from wind and water, soil organic matter changes, and soil GHG fluxes within a geospatial data management framework. This framework assembles and formats information from multiple spatial and temporal scales. The data assembled includes yield and productivity data from harvesting equipment at the 1m scale, surface topography data from LiDAR mapping at the less than 1m scale, soil data from US soil survey databases at the 10m to 100m scale, and climate data at the county scale. These models and data tools are assembled into an integrated computational environment that is used to determine sustainable removal rates for agricultural residues for bioenergy production at the sub-field scale under a wide range of land management practices. Using this integrated model, innovative management practices including cover cropping are then introduced and evaluated for their impact on bioenergy production and important environmental processes. The impacts of introducing dedicated energy crops onto high-risk landscape positions currently being manage in row crop production are also investigated.

  11. Assessment of effectiveness of geologic isolation systems. A conceptual simulation model for release scenario analysis of a hypothetical site in Columbia Plateau Basalts

    SciTech Connect (OSTI)

    Stottlemyre, J.A.; Petrie, G.M.; Benson, G.L.; Zellmer, J.T.

    1981-01-01

    This report is a status report for an evolving methodology for release scenario development for underground nuclear waste repositories. As such, it is intended for use as a reference point and a preliminary description of an evolving geoscience methodology. When completed this methodology will be used as a tool in developing disruptive release scenarios for analyzing the long-term safety of geological nuclear waste repositories. While a basalt environment is used as an example, this report is not intended to reflect an actual site safety assessment for a repository in a media. It is rather intended to present a methodology system framework and to provide discussions of the geological phenomena and parameters that must be addressed in order to develop a methodology for potential release scenarios. It is also important to note that the phenomena, their interrelationships, and their relative importance along with the overall current structure of the model will change as new geological information is gathered through additional peer review, geotechnical input, site specific field work, and related research efforts.

  12. Biomass Analytical Library

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

    diversity and performance, The chemical and physical properties of biomass and biomass feedstocks are characterized as they move through the supply chain to various conversion...

  13. Biomass 2012 Agenda

    Office of Energy Efficiency and Renewable Energy (EERE)

    Detailed agenda from the July 10-11, 2012, Biomass conference--Biomass 2012: Confronting Challenges, Creating Opportunities - Sustaining a Commitment to Bioenergy.

  14. Transforming Biomass - main page

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

    Transforming Biomass to Bioenergy Feedstocks The DOE Biomass Program has shaped the vision of a national, commodity-scale feedstock supply system. Much progress has been made in...

  15. Aspen Process Flowsheet Simulation Model of a Battelle Biomass-Based Gasification, Fischer-Tropsch Liquefaction and Combined-Cycle Power Plant

    SciTech Connect (OSTI)

    None

    1998-10-30

    This study was done to support the research and development program of the National Renewable Energy Laboratory (NREL) in the thermochemical conversion of biomass to liquid transportation fuels using current state-of-the-art technology. The Mitretek study investigated the use of two biomass gasifiers; the RENUGAS gasifier being developed by the Institute of Gas Technology, and the indirectly heated gasifier being developed by Battelle Columbus. The Battelle Memorial Institute of Columbus, Ohio indirectly heated biomass gasifier was selected for this model development because the syngas produced by it is better suited for Fischer-Tropsch synthesis with an iron-based catalyst for which a large amount of experimental data are available. Bechtel with Amoco as a subcontractor developed a conceptual baseline design and several alternative designs for indirect coal liquefaction facilities. In addition, ASPEN Plus process flowsheet simulation models were developed for each of designs. These models were used to perform several parametric studies to investigate various alternatives for improving the economics of indirect coal liquefaction.

  16. Energy from Forest Biomass: Potential Economic Impacts

    E-Print Network [OSTI]

    Schweik, Charles M.

    be small by fossil-fuel standards, and may increasingly produce both useful heat and electricity, though and describes a scenario of 165 MW of new biomass electricity generation facilities (as well as some smaller at present are most likely to produce only electricity. Plants will likely be sited in areas with good road

  17. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    to estimate market potential of renewable energy in the U.S.examine potential future scenarios for renewable energy andpotential question (or questions) to be addressed through the project. In late 2006, increasing renewable energy

  18. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    reflects the building of wind plants in cost classes 2 and 3weighted average cost of capital Wind Deployment Systemon 20% wind scenario forecasts (capital costs, O&M, capacity

  19. QUANTIFYING UNCERTAINTIES IN GROUND MOTION SIMULATIONS FOR SCENARIO EARTHQUAKES ON THE HAYWARD-RODGERS CREEK FAULT SYSTEM USING THE USGS 3D VELOCITY MODEL AND REALISTIC PSEUDODYNAMIC RUPTURE MODELS

    SciTech Connect (OSTI)

    Rodgers, A; Xie, X

    2008-01-09

    This project seeks to compute ground motions for large (M>6.5) scenario earthquakes on the Hayward Fault using realistic pseudodynamic ruptures, the USGS three-dimensional (3D) velocity model and anelastic finite difference simulations on parallel computers. We will attempt to bound ground motions by performing simulations with suites of stochastic rupture models for a given scenario on a given fault segment. The outcome of this effort will provide the average, spread and range of ground motions that can be expected from likely large earthquake scenarios. The resulting ground motions will be based on first-principles calculations and include the effects of slip heterogeneity, fault geometry and directivity, however, they will be band-limited to relatively low-frequency (< 1 Hz).

  20. A $?$CDM bounce scenario

    E-Print Network [OSTI]

    Yi-Fu Cai; Edward Wilson-Ewing

    2015-01-28

    We study a contracting universe composed of cold dark matter and radiation, and with a positive cosmological constant. As is well known from standard cosmological perturbation theory, under the assumption of initial quantum vacuum fluctuations the Fourier modes of the comoving curvature perturbation that exit the (sound) Hubble radius in such a contracting universe at a time of matter-domination will be nearly scale-invariant. Furthermore, the modes that exit the (sound) Hubble radius when the effective equation of state is slightly negative due to the cosmological constant will have a slight red tilt, in agreement with observations. We assume that loop quantum cosmology captures the correct high-curvature dynamics of the space-time, and this ensures that the big-bang singularity is resolved and is replaced by a bounce. We calculate the evolution of the perturbations through the bounce and find that they remain nearly scale-invariant. We also show that the amplitude of the scalar perturbations in this cosmology depends on a combination of the sound speed of cold dark matter, the Hubble rate in the contracting branch at the time of equality of the energy densities of cold dark matter and radiation, and the curvature scale that the loop quantum cosmology bounce occurs at. Importantly, as this scenario predicts a positive running of the scalar index, observations can potentially differentiate between it and inflationary models. Finally, for a small sound speed of cold dark matter, this scenario predicts a small tensor-to-scalar ratio.

  1. ILC Operating Scenarios

    E-Print Network [OSTI]

    T. Barklow; J. Brau; K. Fujii; J. Gao; J. List; N. Walker; K. Yokoya

    2015-06-25

    The ILC Technical Design Report documents the design for the construction of a linear collider which can be operated at energies up to 500 GeV. This report summarizes the outcome of a study of possible running scenarios, including a realistic estimate of the real time accumulation of integrated luminosity based on ramp-up and upgrade processes. The evolution of the physics outcomes is emphasized, including running initially at 500 GeV, then at 350 GeV and 250 GeV. The running scenarios have been chosen to optimize the Higgs precision measurements and top physics while searching for evidence for signals beyond the standard model, including dark matter. In addition to the certain precision physics on the Higgs and top that is the main focus of this study, there are scientific motivations that indicate the possibility for discoveries of new particles in the upcoming operations of the LHC or the early operation of the ILC. Follow-up studies of such discoveries could alter the plan for the centre-of-mass collision energy of the ILC and expand the scientific impact of the ILC physics program. It is envisioned that a decision on a possible energy upgrade would be taken near the end of the twenty year period considered in this report.

  2. Review on Biomass Torrefaction Process and Product Properties and Design of Moving Bed Torrefaction System Model Development

    SciTech Connect (OSTI)

    Jaya Shankar Tumuluru; Christopher T. Wright; Shahab Sokhansanj

    2011-08-01

    A Review on Torrefaction Process and Design of Moving Bed Torrefaction System for Biomass Processing Jaya Shankar Tumuluru1, Shahab Sokhansanj2 and Christopher T. Wright1 Idaho National Laboratory Biofuels and Renewable Energy Technologies Department Idaho Falls, Idaho 83415 Oak Ridge National Laboratory Bioenergy Resource and Engineering Systems Group Oak Ridge, TN 37831 Abstract Torrefaction is currently developing as an important preprocessing step to improve the quality of biomass in terms of physical properties, and proximate and ultimate composition. Torrefaction is a slow heating of biomass in an inert or reduced environment to a maximum temperature of 300 C. Torrefaction can also be defined as a group of products resulting from the partially controlled and isothermal pyrolysis of biomass occurring in a temperature range of 200-230 C and 270-280 C. Thus, the process can also be called a mild pyrolysis as it occurs at the lower temperature range of the pyrolysis process. At the end of the torrefaction process, a solid uniform product with lower moisture content and higher energy content than raw biomass is produced. Most of the smoke-producing compounds and other volatiles are removed during torrefaction, which produces a final product that will have a lower mass but a higher heating value. There is a lack of literature on the design aspects of torrefaction reactor and a design sheet for estimating the dimensions of the torrefier based on capacity. This study includes (a) conducting a detailed review on the torrefaction of biomass in terms of understanding the process, product properties, off-gas compositions, and methods used, and (b) to design a moving bed torrefier, taking into account the basic fundamental heat and mass transfer calculations. Specific objectives include calculating the dimensions like diameter and height of the moving packed bed torrefier for different capacities ranging from 25-1000 kg/hr, designing the heat loads and gas flow rates, and developing an interactive excel sheet where the user can define design specifications.

  3. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    Biomass Scenario Model Documentation Data and References Lin Y Newes E Bush B Peterson S Stright D BIOMASS FUELS BIOMASS SCENARIO MODEL BSM BIOMASS BIOFUEL MODEL DATA REFERENCES...

  4. Biomass treatment method

    DOE Patents [OSTI]

    Friend, Julie (Claymont, DE); Elander, Richard T. (Evergreen, CO); Tucker, III; Melvin P. (Lakewood, CO); Lyons, Robert C. (Arvada, CO)

    2010-10-26

    A method for treating biomass was developed that uses an apparatus which moves a biomass and dilute aqueous ammonia mixture through reaction chambers without compaction. The apparatus moves the biomass using a non-compressing piston. The resulting treated biomass is saccharified to produce fermentable sugars.

  5. Towards practical implementation of computational solution of the Kinematic -wave Model for simulating traffic-flow scenarios 

    E-Print Network [OSTI]

    Kumar, Nishant

    2004-11-15

    The Kinematic-wave model is one of the models proposed to simulate vehicular traffic. It has not received widespread use because of poor understanding of associated interface conditions and early use of incorrect numerical schemes used. This thesis...

  6. A Minimal Inflation Scenario

    E-Print Network [OSTI]

    Luis Alvarez-Gaume; Cesar Gomez; Raul Jimenez

    2011-10-18

    We elaborate on a minimal inflation scenario based entirely on the general properties of supersymmetry breaking in supergravity models. We identify the inflaton as the scalar component of the Goldstino superfield. We write plausible candidates for the effective action describing this chiral superfield. In particular the theory depends (apart from parameters of O(1)) on a single free parameter: the scale of supersymmetry breaking. This can be fixed using the amplitude of CMB cosmological perturbations and we therefore obtain the scale of supersymmetry breaking to be 10^{12-14} GeV. The model also incorporates explicit R-symmetry breaking in order to satisfy the slow roll conditions. In our model the eta-problem is solved without extra fine-tuning. We try to obtain as much information as possible in a model independent way using general symmetry properties of the theory's effective action, this leads to a new proposal on how to exit the inflationary phase and reheat the Universe.

  7. Biomass Feedstock Supply Modeling

    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 on Delicious Rank EERE:FinancingPetroleum Based Fuels Researchof Energy|Make6, 2015 Feedstock Supply and Logistics PI:

  8. MODELING OF TRIPLE JUNCTION A-SI SOLAR CELLS USING ASA: ANALYSIS OF DEVICE PERFORMANCE UNDER VARIOUS FAILURE SCENARIOS

    E-Print Network [OSTI]

    Deng, Xunming

    solar cells and/or the comparison of these predicted results with real multi-junction devices have beenMODELING OF TRIPLE JUNCTION A-SI SOLAR CELLS USING ASA: ANALYSIS OF DEVICE PERFORMANCE UNDER, University of Toledo, Toledo, OH 43606 ABSTRACT Triple junction a-Si solar cells have been modeled

  9. Techno-Economic Analysis of Biomass Fast Pyrolysis to Transportation Fuels

    SciTech Connect (OSTI)

    Wright, M. M.; Satrio, J. A.; Brown, R. C.; Daugaard, D. E.; Hsu, D. D.

    2010-11-01

    This study develops techno-economic models for assessment of the conversion of biomass to valuable fuel products via fast pyrolysis and bio-oil upgrading. The upgrading process produces a mixture of naphtha-range (gasoline blend stock) and diesel-range (diesel blend stock) products. This study analyzes the economics of two scenarios: onsite hydrogen production by reforming bio-oil, and hydrogen purchase from an outside source. The study results for an nth plant indicate that petroleum fractions in the naphtha distillation range and in the diesel distillation range are produced from corn stover at a product value of $3.09/gal ($0.82/liter) with onsite hydrogen production or $2.11/gal ($0.56/liter) with hydrogen purchase. These values correspond to a $0.83/gal ($0.21/liter) cost to produce the bio-oil. Based on these nth plant numbers, product value for a pioneer hydrogen-producing plant is about $6.55/gal ($1.73/liter) and for a pioneer hydrogen-purchasing plant is about $3.41/gal ($0.92/liter). Sensitivity analysis identifies fuel yield as a key variable for the hydrogen-production scenario. Biomass cost is important for both scenarios. Changing feedstock cost from $50-$100 per short ton changes the price of fuel in the hydrogen production scenario from $2.57-$3.62/gal ($0.68-$0.96/liter).

  10. Biomass Energy and Competition for Land

    E-Print Network [OSTI]

    Reilly, John

    We describe an approach for incorporating biomass energy production and competition for land into the MIT Emissions Prediction and Policy Analysis (EPPA) model, a computable general equilibrium model of the world economy, ...

  11. BIOMASS ENERGY CONVERSION IN HAWAII

    E-Print Network [OSTI]

    Ritschard, Ronald L.

    2013-01-01

    Operations, vol. 2 of Biomass Energy (Stanford: StanfordPhotosynthethic Pathway Biomass Energy Production," ~c:_! _LBL-11902 UC-61a BIOMASS ENERGY CONVERSION IN HAWAII

  12. BIOMASS ENERGY CONVERSION IN HAWAII

    E-Print Network [OSTI]

    Ritschard, Ronald L.

    2013-01-01

    Report, (unpublished, 1979). Biomass Project Progress 31.Operations, vol. 2 of Biomass Energy (Stanford: StanfordPhotosynthethic Pathway Biomass Energy Production," ~c:_! _

  13. COFIRING BIOMASS WITH LIGNITE COAL

    SciTech Connect (OSTI)

    Darren D. Schmidt

    2002-01-01

    The University of North Dakota Energy & Environmental Research Center, in support of the U.S. Department of Energy's (DOE) biomass cofiring program, completed a Phase 1 feasibility study investigating aspects of cofiring lignite coal with biomass relative to utility-scale systems, specifically focusing on a small stoker system located at the North Dakota State Penitentiary (NDSP) in Bismarck, North Dakota. A complete biomass resource assessment was completed, the stoker was redesigned to accept biomass, fuel characterization and fireside modeling tests were performed, and an engineering economic analysis was completed. In general, municipal wood residue was found to be the most viable fuel choice, and the modeling showed that fireside problems would be minimal. Experimental ash deposits from firing 50% biomass were found to be weaker and more friable compared to baseline lignite coal. Experimental sulfur and NO{sub x} emissions were reduced by up to 46%. The direct costs savings to NDSP, from cogeneration and fuel saving, results in a 15- to 20-year payback on a $1,680,000 investment, while the total benefits to the greater community would include reduced landfill burden, alleviation of fees for disposal by local businesses, and additional jobs created both for the stoker system as well as from the savings spread throughout the community.

  14. Process Modeling Results of Bio-Syntrolysis: Converting Biomass to Liquid Fuel with High Temperature Steam Electrolysis

    SciTech Connect (OSTI)

    G. L. Hawkes; M. G. McKellar; R. Wood; M. M. Plum

    2010-06-01

    A new process called Bio-Syntrolysis is being researched at the Idaho National Laboratory (INL) investigating syngas production from renewable biomass that is assisted with high temperature steam electrolysis (HTSE). The INL is the world leader in researching HTSE and has recently produced hydrogen from high temperature solid oxide cells running in the electrolysis mode setting several world records along the way. A high temperature (~800°C) heat source is necessary to heat the steam as it goes into the electrolytic cells. Biomass provides the heat source and the carbon source for this process. Syngas, a mixture of hydrogen and carbon monoxide, can be used for the production of synthetic liquid fuels via Fischer-Tropsch processes. This concept, coupled with fossil-free electricity, provides a possible path to reduced greenhouse gas emissions and increased energy independence, without the major infrastructure shift that would be required for a purely hydrogen-based transportation system. Furthermore, since the carbon source is obtained from recyclable biomass, the entire concept is carbon-neutral

  15. Ethanol Distribution, Dispensing, and Use: Analysis of a Portion of the Biomass-to-Biofuels Supply Chain Using System Dynamics

    SciTech Connect (OSTI)

    Vimmerstedt, L. J.; Bush, B.; Peterson, S.

    2012-05-01

    The Energy Independence and Security Act of 2007 targets use of 36 billion gallons of biofuels per year by 2022. Achieving this may require substantial changes to current transportation fuel systems for distribution, dispensing, and use in vehicles. The U.S. Department of Energy and the National Renewable Energy Laboratory designed a system dynamics approach to help focus government action by determining what supply chain changes would have the greatest potential to accelerate biofuels deployment. The National Renewable Energy Laboratory developed the Biomass Scenario Model, a system dynamics model which represents the primary system effects and dependencies in the biomass-to-biofuels supply chain. The model provides a framework for developing scenarios and conducting biofuels policy analysis. This paper focuses on the downstream portion of the supply chain-represented in the distribution logistics, dispensing station, and fuel utilization, and vehicle modules of the Biomass Scenario Model. This model initially focused on ethanol, but has since been expanded to include other biofuels. Some portions of this system are represented dynamically with major interactions and feedbacks, especially those related to a dispensing station owner's decision whether to offer ethanol fuel and a consumer's choice whether to purchase that fuel. Other portions of the system are modeled with little or no dynamics; the vehicle choices of consumers are represented as discrete scenarios. This paper explores conditions needed to sustain an ethanol fuel market and identifies implications of these findings for program and policy goals. A large, economically sustainable ethanol fuel market (or other biofuel market) requires low end-user fuel price relative to gasoline and sufficient producer payment, which are difficult to achieve simultaneously. Other requirements (different for ethanol vs. other biofuel markets) include the need for infrastructure for distribution and dispensing and widespread use of high ethanol blends in flexible-fuel vehicles.

  16. Original article Root biomass and biomass increment in a beech

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Root biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North ­ This study is part of a larger project aimed at quantifying the biomass and biomass increment been developed to estimate the biomass and biomass increment of coarse, small and fine roots of trees

  17. Pretreated densified biomass products

    DOE Patents [OSTI]

    Dale, Bruce E; Ritchie, Bryan; Marshall, Derek

    2014-03-18

    A product comprising at least one densified biomass particulate of a given mass having no added binder and comprised of a plurality of lignin-coated plant biomass fibers is provided, wherein the at least one densified biomass particulate has an intrinsic density substantially equivalent to a binder-containing densified biomass particulate of the same given mass and h a substantially smooth, non-flakey outer surface. Methods for using and making the product are also described.

  18. AVAILABLE NOW! Biomass Funding

    E-Print Network [OSTI]

    AVAILABLE NOW! Biomass Funding Guide 2010 The Forestry Commission and the Humber Rural Partnership (co-ordinated by East Riding of Yorkshire Council) have jointly produced a biomass funding guide fuel prices continue to rise, and the emerging biomass sector is well-placed to make a significant

  19. Biomass Program Biopower Factsheet

    SciTech Connect (OSTI)

    2010-03-01

    Generating electricity and thermal energy from biomass has the potential to help meet national goals for renewable energy. The forest products industry has used biomass for power and heat for many decades, yet widespread use of biomass to supply electricity to the U.S. power grid and other applications is relatively recent.

  20. ORNL/TM-2008/105 Cost Methodology for Biomass

    E-Print Network [OSTI]

    Pennycook, Steve

    ORNL/TM-2008/105 Cost Methodology for Biomass Feedstocks: Herbaceous Crops and Agricultural Resource and Engineering Systems Environmental Sciences Division COST METHODOLOGY FOR BIOMASS FEESTOCKS ....................................................................................................... 3 2.1.1 Integrated Biomass Supply Analysis and Logistics Model (IBSAL).......................... 6 2

  1. Smoldering - The Fire Scenario 

    E-Print Network [OSTI]

    Torero, Jose L

    2000-01-01

    There are certain fire initiation scenarios that are particularly common, one of great significance is a fire initiated from the ignition of a porous fuel. Nearly 40% of the deaths due to fire can be traced to cigarette induced ...

  2. Modelling of long-range transport of Southeast Asia biomass-burning aerosols to Taiwan and their radiative forcings over East Asia

    SciTech Connect (OSTI)

    Lin, Chuan-Yao; Zhao, Chun; Liu, Xiaohong; Lin, Neng-Huei; Chen, Wei-Nei

    2014-10-12

    Biomass burning is a major source of aerosols and air pollutants during the springtime in Southeast Asia. At Lulin mountain background station (elevation 2862 m) in Taiwan, the concentrations of carbon monoxide (CO), ozone (O3) and particulate matter particles with diameter less than 10 ?m (PM10), were measured around 150-250 ppb, 40-60 ppb, and 10-30?g/m3, respectively at spring time (February-April) during 2006 and 2009, which are about 2~3 times higher than those in other seasons. Observations and simulation results indicate that the higher concentrations during the spring time are clearly related to biomass burning plumes transported from the Indochina Peninsula of Southeast Asia. The spatial distribution of high aerosols optical depth (AOD) were identified by the satellite measurement and Aerosol Robotic Network (AERONET) ground observation, and could be reasonably captured by the WRF-Chem model during the study period of 15-18 March, 2008. AOD reached as high as 0.8-1.0 in Indochina ranging from 10 to 22°N and 95 to 107°E. Organic carbon (OC) is a major contributor of AOD over Indochina according to simulation results. The contributor of AOD from black carbon (BC) is minor when compared with OC over the Indochina. However, the direct absorption radiative forcing of BC in the atmosphere could reach 35-50 W m-2, which is about 8-10 times higher than that of OC. The belt shape of radiation reduction at surface from Indochina to Taiwan could be as high 20-40 W m-2 during the study period. The implication of the radiative forcing from biomass burning aerosols and their impact on the regional climate in East Asia is our major concern.

  3. A method for the assessment of site-specific economic impacts of commercial and industrial biomass energy facilities. A handbook and computer model

    SciTech Connect (OSTI)

    Not Available

    1994-10-01

    A handbook on ``A Method for the Assessment of Site-specific Econoomic Impacts of Industrial and Commercial Biomass Energy Facilities`` has been prepared by Resource Systems Group Inc. under contract to the Southeastern Regional Biomass Energy Program (SERBEP). The handbook includes a user-friendly Lotus 123 spreadsheet which calculates the economic impacts of biomass energy facilities. The analysis uses a hybrid approach, combining direct site-specific data provided by the user, with indirect impact multipliers from the US Forest Service IMPLAN input/output model for each state. Direct economic impacts are determined primarily from site-specific data and indirect impacts are determined from the IMPLAN multipliers. The economic impacts are given in terms of income, employment, and state and federal taxes generated directly by the specific facility and by the indirect economic activity associated with each project. A worksheet is provided which guides the user in identifying and entering the appropriate financial data on the plant to be evaluated. The WLAN multipliers for each state are included in a database within the program. The multipliers are applied automatically after the user has entered the site-specific data and the state in which the facility is located. Output from the analysis includes a summary of direct and indirect income, employment and taxes. Case studies of large and small wood energy facilities and an ethanol plant are provided as examples to demonstrate the method. Although the handbook and program are intended for use by those with no previous experience in economic impact analysis, suggestions are given for the more experienced user who may wish to modify the analysis techniques.

  4. Mobile Biomass Pelletizing System

    SciTech Connect (OSTI)

    Thomas Mason

    2009-04-16

    This grant project examines multiple aspects of the pelletizing process to determine the feasibility of pelletizing biomass using a mobile form factor system. These aspects are: the automatic adjustment of the die height in a rotary-style pellet mill, the construction of the die head to allow the use of ceramic materials for extreme wear, integrating a heat exchanger network into the entire process from drying to cooling, the use of superheated steam for adjusting the moisture content to optimum, the economics of using diesel power to operate the system; a break-even analysis of estimated fixed operating costs vs. tons per hour capacity. Initial development work has created a viable mechanical model. The overall analysis of this model suggests that pelletizing can be economically done using a mobile platform.

  5. Milliken Landfill Biomass Facility | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenariosMarysvilleMicrogravity-HybridCredits LLCLandfill Biomass Facility

  6. Current generation by helicons and LH waves in modern tokamaks and reactors FNSF-AT, ITER and DEMO. Scenarios, modeling and antennae

    SciTech Connect (OSTI)

    Vdovin, V. [NRC Kurchatov Institute Tokamak Physics Institute, Moscow (Russian Federation)

    2014-02-12

    The Innovative concept and 3D full wave code modeling Off-axis current drive by RF waves in large scale tokamaks, reactors FNSF-AT, ITER and DEMO for steady state operation with high efficiency was proposed [1] to overcome problems well known for LH method [2]. The scheme uses the helicons radiation (fast magnetosonic waves at high (20–40) IC frequency harmonics) at frequencies of 500–1000 MHz, propagating in the outer regions of the plasmas with a rotational transform. It is expected that the current generated by Helicons will help to have regimes with negative magnetic shear and internal transport barrier to ensure stability at high normalized plasma pressure ?{sub N} > 3 (the so-called Advanced scenarios) of interest for FNSF and the commercial reactor. Modeling with full wave three-dimensional codes PSTELION and STELEC2 showed flexible control of the current profile in the reactor plasmas of ITER, FNSF-AT and DEMO [2,3], using multiple frequencies, the positions of the antennae and toroidal waves slow down. Also presented are the results of simulations of current generation by helicons in tokamaks DIII-D, T-15MD and JT-60SA [3]. In DEMO and Power Plant antenna is strongly simplified, being some analoge of mirrors based ECRF launcher, as will be shown. For spherical tokamaks the Helicons excitation scheme does not provide efficient Off-axis CD profile flexibility due to strong coupling of helicons with O-mode, also through the boundary conditions in low aspect machines, and intrinsic large amount of trapped electrons, as is shown by STELION modeling for the NSTX tokamak. Brief history of Helicons experimental and modeling exploration in straight plasmas, tokamaks and tokamak based fusion Reactors projects is given, including planned joint DIII-D – Kurchatov Institute experiment on helicons CD [1].

  7. Analyzing and Comparing Biomass Feedstock Supply Systems in China: Corn Stover and Sweet Sorghum Case Studies

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

    Ren, Lantian; Cafferty, Kara; Roni, Mohammad; Jacobson, Jacob; Xie, Guanghui; Ovard, Leslie; Wright, Christopher

    2015-06-11

    This paper analyzes the rural Chinese biomass supply system and models supply chain operations according to U.S. concepts of logistical unit operations: harvest and collection, storage, transportation, preprocessing, and handling and queuing. In this paper, we quantify the logistics cost of corn stover and sweet sorghum in China under different scenarios. We analyze three scenarios of corn stover logistics from northeast China and three scenarios of sweet sorghum stalks logistics from Inner Mongolia in China. The case study estimates that the logistics cost of corn stover and sweet sorghum stalk to be $52.95/dry metric ton and $52.64/dry metric ton, respectively,more »for the current labor-based biomass logistics system. However, if the feedstock logistics operation is mechanized, the cost of corn stover and sweet sorghum stalk decreases to $36.01/dry metric ton and $35.76/dry metric ton, respectively. The study also includes a sensitivity analysis to identify the cost factors that cause logistics cost variation. Results of the sensitivity analysis show that labor price has the most influence on the logistics cost of corn stover and sweet sorghum stalk, with a variation of $6 to $12/dry metric ton.« less

  8. Renewable Energy and Efficiency Modeling Analysis Partnership (REMAP): An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025.

    SciTech Connect (OSTI)

    Blair, N.; Jenkin, T.; Milford, J.; Short, W.; Sullivan, P.; Evans, D.; Lieberman, E.; Goldstein, G.; Wright, E.; Jayaraman, K. R.; Venkatesh, B.; Kleiman, G.; Namovicz, C.; Smith, B.; Palmer, K.; Wi

    2009-09-01

    Energy system modeling can be intentionally or unintentionally misused by decision-makers. This report describes how both can be minimized through careful use of models and thorough understanding of their underlying approaches and assumptions. The analysis summarized here assesses the impact that model and data choices have on forecasting energy systems by comparing seven different electric-sector models. This analysis was coordinated by the Renewable Energy and Efficiency Modeling Analysis Partnership (REMAP), a collaboration among governmental, academic, and nongovernmental participants.

  9. Renewable Energy and Efficiency Modeling Analysis Partnership (REMAP): An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    SciTech Connect (OSTI)

    Blair, N.; Jenkin, T.; Milford, J.; Short, W.; Sullivan, P.; Evans, D.; Lieberman, E.; Goldstein, G.; Wright, E.; Jayaraman, K. R.; Venkatesh, B.; Kleiman, G.; Namovicz, C.; Smith, B.; Palmer, K.; Wiser, R.; Wood, F.

    2009-09-01

    Energy system modeling can be intentionally or unintentionally misused by decision-makers. This report describes how both can be minimized through careful use of models and thorough understanding of their underlying approaches and assumptions. The analysis summarized here assesses the impact that model and data choices have on forecasting energy systems by comparing seven different electric-sector models. This analysis was coordinated by the Renewable Energy and Efficiency Modeling Analysis Partnership (REMAP), a collaboration among governmental, academic, and nongovernmental participants.

  10. Complex pendulum biomass sensor

    DOE Patents [OSTI]

    Hoskinson, Reed L. (Rigby, ID); Kenney, Kevin L. (Idaho Falls, ID); Perrenoud, Ben C. (Rigby, ID)

    2007-12-25

    A complex pendulum system biomass sensor having a plurality of pendulums. The plurality of pendulums allow the system to detect a biomass height and density. Each pendulum has an angular deflection sensor and a deflector at a unique height. The pendulums are passed through the biomass and readings from the angular deflection sensors are fed into a control system. The control system determines whether adjustment of machine settings is appropriate and either displays an output to the operator, or adjusts automatically adjusts the machine settings, such as the speed, at which the pendulums are passed through the biomass. In an alternate embodiment, an entanglement sensor is also passed through the biomass to determine the amount of biomass entanglement. This measure of entanglement is also fed into the control system.

  11. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    COVERED (From - To) Renewable Energy and Efficiency Modelingphotovoltaics renewable energy renewable energy certificatecoordinated by the Renewable Energy and Efficiency Modeling

  12. Advanced Biomass Gasification Projects

    SciTech Connect (OSTI)

    Not Available

    1997-08-01

    DOE has a major initiative under way to demonstrate two high-efficiency gasification systems for converting biomass into electricity. As this fact sheet explains, the Biomass Power Program is cost-sharing two scale-up projects with industry in Hawaii and Vermont that, if successful, will provide substantial market pull for U.S. biomass technologies, and provide a significant market edge over competing foreign technologies.

  13. Biomass 2010 Conference Agenda | Department of Energy

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

    0 Conference Agenda Biomass 2010 Conference Agenda Biomass 2010 Conference Agenda bio2010fullagenda.pdf More Documents & Publications Biomass 2009 Conference Agenda Biomass 2011...

  14. CALLA ENERGY BIOMASS COFIRING PROJECT

    SciTech Connect (OSTI)

    Francis S. Lau

    2003-09-01

    The Calla Energy Biomass Project, to be located in Estill County, Kentucky is to be conducted in two phases. The objective of Phase I is to evaluate the technical and economic feasibility of cofiring biomass-based gasification fuel-gas in a power generation boiler. Natural gas and waste coal fines were evaluated as the cofired fuel. The project is based on the use of commercially available technology for feeding and gas cleanup that would be suitable for deployment in municipal, large industrial and utility applications. A design was developed for a cofiring combustion system for the biomass gasification-based fuel-gas capable of stable, low-NOx combustion over the full range of gaseous fuel mixtures in a power generation boiler, with low carbon monoxide emissions and turndown capabilities suitable for large-scale power generation applications. Following the preliminary design, GTI evaluated the gasification characteristics of selected feedstocks for the project. To conduct this work, GTI assembled an existing ''mini-bench'' unit to perform the gasification tests. The results of the test were used to confirm the process design completed in Phase Task 1. As a result of the testing and modeling effort, the selected biomass feedstocks gasified very well, with a carbon conversion of over 98% and individual gas component yields that matched the RENUGAS{reg_sign} model. As a result of this work, the facility appears very attractive from a commercial standpoint. Similar facilities can be profitable if they have access to low cost fuels and have attractive wholesale or retail electrical rates for electricity sales. The objective for Phase II is to design, install and demonstrate the combined gasification and combustion system in a large-scale, long-term cofiring operation to promote acceptance and utilization of indirect biomass cofiring technology for large-scale power generation applications. Phase II has not been approved for construction at this time.

  15. Big Data Privacy Scenarios

    E-Print Network [OSTI]

    Bruce, Elizabeth

    2015-10-01

    This paper is the first in a series on privacy in Big Data. As an outgrowth of a series of workshops on the topic, the Big Data Privacy Working Group undertook a study of a series of use scenarios to highlight the challenges ...

  16. Algal Biomass Valorization

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

    2015 Project Peer Review 1.3.4.300 Algal Biomass Valorization BETO Algae Platform - Peer review Alexandria, VA March 24 th , 2015 Lieve Laurens National Renewable Energy...

  17. Biomass Feed and Gasification

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

    conventional oil refining. Activities support research for handling and processing of coal-biomass mixtures, ensuring those mixtures are compatible with feed delivery systems,...

  18. Overview of biomass technologies

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The biomass overview of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  19. Gasification-based biomass

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The gasification-based biomass section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  20. Biomass Processing Photolibrary

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

    Research related to bioenergy is a major focus in the U.S. as science agencies, universities, and commercial labs seek to create new energy-efficient fuels. The Biomass Processing Project is one of the funded projects of the joint USDA-DOE Biomass Research and Development Initiative. The Biomass Processing Photolibrary has numerous images, but there are no accompanying abstracts to explain what you are seeing. The project website, however, makes available the full text of presentations and publications and also includes an exhaustive biomass glossary that is being developed into an ASAE Standard.

  1. Direct-fired biomass

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The direct-fired biomass section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  2. Co-firing biomass

    SciTech Connect (OSTI)

    Hunt, T.; Tennant, D. [Hunt, Guillot & Associates LLC (United States)

    2009-11-15

    Concern about global warming has altered the landscape for fossil-fuel combustion. The advantages and challenges of co-firing biomass and coal are discussed. 2 photos.

  3. Scenarios for Deep Carbon Emission Reductions from Electricity by 2050 in Western North America Using the SWITCH Electric Power Sector Planning Model

    E-Print Network [OSTI]

    Nelson, James Henry

    2013-01-01

    California   to   build   in-­?state   solar   power.    is   a   large   build-­?out   of   solar   thermal   with  solar   thermal   is   likely   to   be   correlated   with   that   of   PV.     This   scenario   builds  

  4. Reducing the uncertainties in carbon emissions fromReducing the uncertainties in carbon emissions from tropical deforestation -the BIOMASS mission

    E-Print Network [OSTI]

    from tropical deforestation - the BIOMASS mission Shaun Quegan University of Sheffield x average biomassCem = deforested area x average biomass (UN Framework Convention on Climate Change Good Practice Guide 2003) #12;How well is biomass known? Model Model + SatelliteInterpolation Model

  5. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    DATES COVERED (From - To) Renewable Energy and EfficiencyModels Addressed a Common High Renewable Energy PenetrationWood (OnLocation) National Renewable Energy Laboratory 1617

  6. Questioning Inevitability of Energy Pathways: Alternative Energy Scenarios for California

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Questioning Inevitability of Energy Pathways: Alternative Energy Scenarios for California May 21.6.4 Alternative Scenario 3 ­ Patriotic Energy Independence Section 3: Developing the Scenario Model and Examining, 2002 by Rebecca Ghanadan rebeccag@socrates.berkeley.edu The Energy and Resources Group University

  7. Scenario Generation for Price Forecasting in Restructured Wholesale Power Markets

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    markets could aid in the design of appropriate price forecasting tools for such markets. Scenario1 Scenario Generation for Price Forecasting in Restructured Wholesale Power Markets Qun Zhou, restructured wholesale power markets, scenario generation, ARMA model, moment-matching method I. INTRODUCTION

  8. Assessment of the Emissions and Energy Impacts of Biomass and Biogas Use in California

    E-Print Network [OSTI]

    Dabdub, Donald

    Assessment of the Emissions and Energy Impacts of Biomass and Biogas Use in California Provided Scenarios 69 4.2.1 Conversion of Solid Biomass 69 4.2.2 Conversion of Biogas 74 4.2.3 Emissions Displacement CBC, 2013. 24 Figure 4: Capacity of existing biopower facilities in California using biogas from

  9. Biomass One Biomass Facility | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin:Pontiac Biomass Facility Jump to:Biola,Biomass Facility Jump to:

  10. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY to treatment prescriptions and anticipated outputs of sawlogs and biomass fuel? How many individual operations biomass fuel removed. Typically in plantations. 50% No harvest treatment

  11. Module Handbook Specialisation Biomass Energy

    E-Print Network [OSTI]

    Damm, Werner

    Module Handbook Specialisation Biomass Energy 2nd Semester for the Master Programme REMA/EUREC Course 2008/2009 University of Zaragoza Specialisation Provider: Biomass Energy #12;Specialisation Biomass Energy, University of Zaragoza Modul: Introduction and Basic Concepts

  12. Biomass Research Program

    ScienceCinema (OSTI)

    Kenney, Kevin; Wright, Christopher; Shelton-Davis, Colleen

    2013-05-28

    INL's mission is to achieve DOE's vision of supplying high-quality raw biomass; preprocessing biomass into advanced bioenergy feedstocks; and delivering bioenergy commodities to biorefineries. You can learn more about research like this at the lab's facebook site http://www.facebook.com/idahonationallaboratory.

  13. Standard Scenarios Annual Report

    Broader source: Energy.gov [DOE]

    The National Renewable Energy Laboratory is conducting a study sponsored by the U.S. Department of Energy DOE, Office of Energy Efficiency and Renewable Energy (EERE), that aims to document and implement an annual process designed to identify a realistic and timely set of input assumptions (e.g., technology cost and performance, fuel costs), and a diverse set of potential futures (standard scenarios), initially for electric sector analysis.

  14. Preprocessing Moist Lignocellulosic Biomass for Biorefinery Feedstocks

    SciTech Connect (OSTI)

    Neal Yancey; Christopher T. Wright; Craig Conner; J. Richard Hess

    2009-06-01

    Biomass preprocessing is one of the primary operations in the feedstock assembly system of a lignocellulosic biorefinery. Preprocessing is generally accomplished using industrial grinders to format biomass materials into a suitable biorefinery feedstock for conversion to ethanol and other bioproducts. Many factors affect machine efficiency and the physical characteristics of preprocessed biomass. For example, moisture content of the biomass as received from the point of production has a significant impact on overall system efficiency and can significantly affect the characteristics (particle size distribution, flowability, storability, etc.) of the size-reduced biomass. Many different grinder configurations are available on the market, each with advantages under specific conditions. Ultimately, the capacity and/or efficiency of the grinding process can be enhanced by selecting the grinder configuration that optimizes grinder performance based on moisture content and screen size. This paper discusses the relationships of biomass moisture with respect to preprocessing system performance and product physical characteristics and compares data obtained on corn stover, switchgrass, and wheat straw as model feedstocks during Vermeer HG 200 grinder testing. During the tests, grinder screen configuration and biomass moisture content were varied and tested to provide a better understanding of their relative impact on machine performance and the resulting feedstock physical characteristics and uniformity relative to each crop tested.

  15. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY Citation: USDA Forest Service, Pacific Southwest Research Station. 2009. Biomass to Energy: Forest

  16. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY study. The Biomass to Energy (B2E) Project is exploring the ecological and economic consequences

  17. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY and continuously between the earth's biomass and atmosphere. From a greenhouse gas perspective, forest treatments

  18. Investigating and Using Biomass Gases

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

    Investigating and Using Biomass Gases Grades: 9-12 Topic: Biomass Authors: Eric Benson and Melissa Highfill Owner: National Renewable Energy Laboratory This educational material is...

  19. The potential for biomass to mitigate greenhouse gas emissions in the Northeastern US. Northeast Regional Biomass Program

    SciTech Connect (OSTI)

    Bernow, S.S.; Gurney, K.; Prince, G.; Cyr, M.

    1992-04-01

    This study, for the Northeast Regional Biomass Program (NRBP) of the Coalition of Northeast Governors (CONEG), evaluates the potential for local, state and regional biomass policies to contribute to an overall energy/biomass strategy for the reduction of greenhouse gas releases in the Northeastern United States. Biomass is a conditionally renewable resource that can play a dual role: by reducing emissions of greenhouse gases in meeting our energy needs; and by removing carbon from the atmosphere and sequestering it in standing biomass stocks and long-lived products. In this study we examine the contribution of biomass to the energy system in the Northeast and to the region`s net releases of carbon dioxide and methane, and project these releases over three decades, given a continuation of current trends and policies. We then compare this Reference Case with three alternative scenarios, assuming successively more aggressive efforts to reduce greenhouse gas emissions through strategic implementation of energy efficiency and biomass resources. Finally, we identify and examine policy options for expanding the role of biomass in the region`s energy and greenhouse gas mitigation strategies.

  20. The role of renewable energy in climate stabilization: results from the EMF 27 scenarios

    SciTech Connect (OSTI)

    Luderer, Gunnar; Krey, Volker; Calvin, Katherine V.; Merrick, James; Mima, Silvana; Pietzcker, Robert; Van Vliet, Jasper; Wada, Kenichi

    2013-10-15

    This paper uses the EMF27 scenarios to explore the role of renewable energy (RE) in climate change mitigation. Currently RE supplies almost 20 % of global electricity demand. Almost all EMF27 mitigation scenarios show a strong increase in renewable power production, with a substantial ramp-up of wind and solar power deployment. In many scenarios, renewables are the most important long-term mitigation option for power supply. Wind energy is competitive even without climate policy, whereas the prospects of solar photovoltaics (PV) are highly contingent on the ambitiousness of climate policy. Bioenergy is an important and versatile energy carrier; however—with the exception of low temperature heat—there is less scope for renewables other than biomass for non-electric energy supply. Despite the important role of wind and solar power in climate change mitigation scenarios with full technology availability, limiting their deployment has a relatively small effect on mitigation costs, if nuclear and carbon capture and storage (CCS)—which can serve as substitutes in low-carbon power supply—are available. Limited bioenergy availability in combination with limited wind and solar power by contrast, results in a more substantial increase in mitigation costs. While a number of robust insights emerge, the results on renewable energy deployment levels vary considerably across the models. An in-depth analysis of a subset of EMF27 reveals substantial differences in modeling approaches and parameter assumptions. To a certain degree, differences in model results can be attributed to different assumptions about technology costs, resource potentials and systems integration.

  1. Emergent Universe with Exotic Matter in Brane World Scenario

    E-Print Network [OSTI]

    Ujjal Debnath; Subenoy Chakraborty

    2011-04-09

    In this work, we have examined the emergent scenario in brane world model for phantom and tachyonic matter. For tachyonic matter field we have obtained emergent scenario is possible for closed, open and at model of the universe with some restriction of potential. For normal scalar field the emergent scenario is possible only for closed model and the result is identical with the work of Ellis et al [2], but for phantom field the emergent scenario is possible for closed, open and at model of the universe with some restriction of potential.

  2. Mapping Biomass Distribution Potential

    E-Print Network [OSTI]

    Schaetzel, Michael

    2010-11-18

    stream_size 1487 stream_content_type text/plain stream_name ku_gis_day_2010_schaetzel.pdf.txt stream_source_info ku_gis_day_2010_schaetzel.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8 Mapping Biomass... Distribution Potential Michael Schaetzel Undergraduate ? Environmental Studies ? University of Kansas L O C A T S I O N BIOMASS ENERGY POTENTIAL o According to DOE, Biomass has the potential to provide 14% of the nation’s power o Currently 1% of...

  3. Biomass | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin:Pontiac Biomass Facility Jump to:Biola,BiomassBiomass Jump to:

  4. Future climate trends from a first-difference atmospheric carbon dioxide regression model involving emissions scenarios for business as usual and for peak fossil fuel

    E-Print Network [OSTI]

    Leggett, L M W

    2014-01-01

    This paper investigates the implications of the future continuation of the demonstrated past (1960-2012) strong correlation between first-difference atmospheric CO2 and global surface temperature. It does this, for the period from the present to 2050, for a comprehensive range of future global fossil fuel energy use scenarios. The results show that even for a business-as-usual (the mid-level IPCC) fossil fuel use estimate, global surface temperature will rise at a slower rate than for the recent period 1960-2000. Concerning peak fossil fuel, for the most common scenario the currently observed (1998-2013)temperature plateau will turn into a decrease. The observed trend to date for temperature is compared with that for global climate disasters: these peaked in 2005 and are notably decreasing. The temperature and disaster results taken together are consistent with either a reduced business-as-usual fossil fuel use scenario into the future, or a peak fossil fuel scenario, but not with the standard business-as-usu...

  5. Biomass Boiler and Furnace Emissions and Safety Regulations in...

    Open Energy Info (EERE)

    Energy Focus Area: Biomass, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Biofuels, Economic Development Phase: Determine Baseline, Evaluate Options,...

  6. How Can China Lighten Up? Urbanization, Industrialization and Energy Demand Scenarios

    SciTech Connect (OSTI)

    Aden, Nathaniel T.; Zheng, Nina; Fridley, David G.

    2009-07-01

    Urbanization has re-shaped China's economy, society, and energy system. Between 1990 and 2007 China added 290 million new urban residents, bringing the total urbanization rate to 45%. This population adjustment spurred energy demand for construction of new buildings and infrastructure, as well as additional residential use as rural biomass was replaced with urban commercial energy services. Primary energy demand grew at an average annual rate of 10% between 2000 and 2007. Urbanization's effect on energy demand was compounded by the boom in domestic infrastructure investment, and in the export trade following World Trade Organization (WTO) accession in 2001. Industry energy consumption was most directly affected by this acceleration. Whereas industry comprised 32% of 2007 U.S. energy use, it accounted for 75% of China's 2007 energy consumption. Five sub-sectors accounted for 78% of China's industry energy use in 2007: iron and steel, energy extraction and processing, chemicals, cement, and non-ferrous metals. Ferrous metals alone accounted for 25% of industry and 18% of total primary energy use. The rapid growth of heavy industry has led China to become by far the world's largest producer of steel, cement, aluminum, and other energy-intensive commodities. However, the energy efficiency of heavy industrial production continues to lag world best practice levels. This study uses scenario analysis to quantify the impact of urbanization and trade on industrial and residential energy consumption from 2000 to 2025. The BAU scenario assumed 67% urbanization, frozen export amounts of heavy industrial products, and achievement of world best practices by 2025. The China Lightens Up (CLU) scenario assumed 55% urbanization, zero net exports of heavy industrial products, and more aggressive efficiency improvements by 2025. The five dominant industry sub-sectors were modeled in both scenarios using a LEAP energy end-use accounting model. The results of this study show that a CLU-style development path would avoid 430 million tonnes coal-equivalent energy use by 2025. More than 60% of these energy savings would come from reduced activity and production levels. In carbon terms, this would amount to more than a billion-tonne reduction of energy-related carbon emissions compared with the BAU scenario in 2025, though the absolute level of emissions rises in both scenarios. Aside from the energy and carbon savings related to CLU scenario development, this study showed impending saturation effects in commercial construction, urban appliance ownership, and fertilizer application. The implication of these findings is that urbanization will have a direct impact on future energy use and emissions - policies to guide urban growth can play a central role in China's efforts to mitigate emissions growth.

  7. Integrated modeling of CO2 storage and leakage scenarios including transitions between super- and sub-critical conditions, and phase change between liquid and gaseous CO2

    SciTech Connect (OSTI)

    Pruess, K.

    2011-05-15

    Storage of CO{sub 2} in saline aquifers is intended to be at supercritical pressure and temperature conditions, but CO{sub 2} leaking from a geologic storage reservoir and migrating toward the land surface (through faults, fractures, or improperly abandoned wells) would reach subcritical conditions at depths shallower than 500-750 m. At these and shallower depths, subcritical CO{sub 2} can form two-phase mixtures of liquid and gaseous CO{sub 2}, with significant latent heat effects during boiling and condensation. Additional strongly non-isothermal effects can arise from decompression of gas-like subcritical CO{sub 2}, the so-called Joule-Thomson effect. Integrated modeling of CO{sub 2} storage and leakage requires the ability to model non-isothermal flows of brine and CO{sub 2} at conditions that range from supercritical to subcritical, including three-phase flow of aqueous phase, and both liquid and gaseous CO{sub 2}. In this paper, we describe and demonstrate comprehensive simulation capabilities that can cope with all possible phase conditions in brine-CO{sub 2} systems. Our model formulation includes: (1) an accurate description of thermophysical properties of aqueous and CO{sub 2}-rich phases as functions of temperature, pressure, salinity and CO{sub 2} content, including the mutual dissolution of CO{sub 2} and H{sub 2}O; (2) transitions between super- and subcritical conditions, including phase change between liquid and gaseous CO{sub 2}; (3) one-, two-, and three-phase flow of brine-CO{sub 2} mixtures, including heat flow; (4) non-isothermal effects associated with phase change, mutual dissolution of CO{sub 2} and water, and (de-) compression effects; and (5) the effects of dissolved NaCl, and the possibility of precipitating solid halite, with associated porosity and permeability change. Applications to specific leakage scenarios demonstrate that the peculiar thermophysical properties of CO{sub 2} provide a potential for positive as well as negative feedbacks on leakage rates, with a combination of self-enhancing and self-limiting effects. Lower viscosity and density of CO{sub 2} as compared to aqueous fluids provides a potential for self-enhancing effects during leakage, while strong cooling effects from liquid CO{sub 2} boiling into gas, and from expansion of gas rising towards the land surface, act to self-limit discharges. Strong interference between fluid phases under three-phase conditions (aqueous - liquid CO{sub 2} - gaseous CO{sub 2}) also tends to reduce CO{sub 2} fluxes. Feedback on different space and time scales can induce non-monotonic behavior of CO{sub 2} flow rates.

  8. BIOMASS ACTION PLAN FOR SCOTLAND

    E-Print Network [OSTI]

    BIOMASS ACTION PLAN FOR SCOTLAND #12; #12;© Crown copyright 2007 ISBN: 978 0 7559 6506 9 Scottish% recyclable. #12;A BIOMASS ACTION PLAN FOR SCOTLAND #12;#12;1 CONTENTS FOREWORD 3 1. EXECUTIVE SUMMARY 5 2. INTRODUCTION 9 3. WIDER CONTEXT 13 4. SCOTLAND'S ROLE IN THE UK BIOMASS STRATEGY 17 5. BIOMASS HEATING 23 6

  9. Feedstock System to Deliver Biomass

    E-Print Network [OSTI]

    Lin, Xi

    Feedstock System to Deliver Biomass Into a Solid Oxide Membrane Electrolyzer Chloë Cullen | Teresa with steam and biomass as inputs. Professor Goldfarb is seeking to control the rate of biomass: The Solution: The Problem: Currently, Professor Goldfarb's lab technicians can only feed about 10 mL of biomass

  10. The ultimate biomass refinery

    SciTech Connect (OSTI)

    Bungay, H.R. )

    1988-01-01

    Bits and pieces of refining schemes and both old and new technology have been integrated into a complete biomass harvesting, processing, waste recycle, and marketing complex. These choices are justified with economic estimates and technology assessments.

  11. Biomass Energy Production Incentive

    Office of Energy Efficiency and Renewable Energy (EERE)

    In 2007 South Carolina enacted the Energy Freedom and Rural Development Act, which provides production incentives for certain biomass-energy facilities. Eligible systems earn $0.01 per kilowatt-h...

  12. Countercurrent Saccharification of Biomass 

    E-Print Network [OSTI]

    Derner, John David

    2015-04-21

    Our goal was to research and implement a countercurrent system to run enzymatic saccharification of biomass. The project provided clear results to show that this method is more efficient than the batch process that companies currently employ. Excess...

  13. DOE 2014 Biomass Conference

    Office of Energy Efficiency and Renewable Energy (EERE)

    Breakout Session 1C—Fostering Technology Adoption I: Building the Market for Renewables with High Octane Fuels DOE 2014 Biomass Conference Jim Williams, Senior Manager, American Petroleum Institute

  14. Biomass Basics Webinar

    Broader source: Energy.gov [DOE]

    The Bioenergy Technologies Office (BETO) is hosting a Biomass Basics Webinar on August 27, 2015, from 4:00-4:40pm EDT. This webinar will provide high school students and teachers with background...

  15. Biomass cogeneration. A business assessment

    SciTech Connect (OSTI)

    Skelton, J.C.

    1981-11-01

    This guide serves as an overview of the biomass cogeneration area and provides direction for more detailed analysis. The business assessment is based in part on discussions with key officials from firms that have adopted biomass cogeneration systems and from organizations such as utilities, state and federal agencies, and banks that would be directly involved in a biomass cogeneration project. The guide is organized into five chapters: biomass cogeneration systems, biomass cogeneration business considerations, biomass cogeneration economics, biomass cogeneration project planning, and case studies.

  16. 2007 Biomass Program Overview

    SciTech Connect (OSTI)

    none,

    2009-10-27

    The Biomass Program is actively working with public and private partners to meet production and technology needs. With the corn ethanol market growing steadily, researchers are unlocking the potential of non-food biomass sources, such as switchgrass and forest and agricultural residues. In this way, the Program is helping to ensure that cost-effective technologies will be ready to support production goals for advanced biofuels.

  17. Biomass 2014 Poster Session

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Department of Energy’s Bioenergy Technologies Office (BETO) invites students, researchers, public and private organizations, and members of the general public to submit poster abstracts for consideration for the annual Biomass Conference Poster Session. The Biomass 2014 conference theme focuses on topics that are advancing the growth of the bioeconomy, such as improvements in feedstock logistics; promising, innovative pathways for advanced biofuels; and market-enabling co-products.

  18. LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERING UNIT (PEU)

    E-Print Network [OSTI]

    Figueroa, Carlos

    2012-01-01

    LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERINGLBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERINGLBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERING

  19. Northeast Regional Biomass Program

    SciTech Connect (OSTI)

    Lusk, P.D.

    1992-12-01

    The Northeast Regional Biomass Program has been in operation for a period of nine years. During this time, state managed programs and technical programs have been conducted covering a wide range of activities primarily aim at the use and applications of wood as a fuel. These activities include: assessments of available biomass resources; surveys to determine what industries, businesses, institutions, and utility companies use wood and wood waste for fuel; and workshops, seminars, and demonstrations to provide technical assistance. In the Northeast, an estimated 6.2 million tons of wood are used in the commercial and industrial sector, where 12.5 million cords are used for residential heating annually. Of this useage, 1504.7 mw of power has been generated from biomass. The use of wood energy products has had substantial employment and income benefits in the region. Although wood and woodwaste have received primary emphasis in the regional program, the use of municipal solid waste has received increased emphasis as an energy source. The energy contribution of biomass will increase as potentia users become more familiar with existing feedstocks, technologies, and applications. The Northeast Regional Biomass Program is designed to support region-specific to overcome near-term barriers to biomass energy use.

  20. Radiation Detection Computational Benchmark Scenarios

    SciTech Connect (OSTI)

    Shaver, Mark W.; Casella, Andrew M.; Wittman, Richard S.; McDonald, Ben S.

    2013-09-24

    Modeling forms an important component of radiation detection development, allowing for testing of new detector designs, evaluation of existing equipment against a wide variety of potential threat sources, and assessing operation performance of radiation detection systems. This can, however, result in large and complex scenarios which are time consuming to model. A variety of approaches to radiation transport modeling exist with complementary strengths and weaknesses for different problems. This variety of approaches, and the development of promising new tools (such as ORNL’s ADVANTG) which combine benefits of multiple approaches, illustrates the need for a means of evaluating or comparing different techniques for radiation detection problems. This report presents a set of 9 benchmark problems for comparing different types of radiation transport calculations, identifying appropriate tools for classes of problems, and testing and guiding the development of new methods. The benchmarks were drawn primarily from existing or previous calculations with a preference for scenarios which include experimental data, or otherwise have results with a high level of confidence, are non-sensitive, and represent problem sets of interest to NA-22. From a technical perspective, the benchmarks were chosen to span a range of difficulty and to include gamma transport, neutron transport, or both and represent different important physical processes and a range of sensitivity to angular or energy fidelity. Following benchmark identification, existing information about geometry, measurements, and previous calculations were assembled. Monte Carlo results (MCNP decks) were reviewed or created and re-run in order to attain accurate computational times and to verify agreement with experimental data, when present. Benchmark information was then conveyed to ORNL in order to guide testing and development of hybrid calculations. The results of those ADVANTG calculations were then sent to PNNL for compilation. This is a report describing the details of the selected Benchmarks and results from various transport codes.

  1. Hydrogen Production: Biomass Gasification | Department of Energy

    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 on Delicious Rank EERE:Financing Tool Fits the Bill FinancingDepartment ofPowerScenario AnalysisFuelEducationBiomass

  2. Periodic optimal control for biomass productivity maximization in a photobioreactor using natural light

    E-Print Network [OSTI]

    Grognard, Frédéric; Bernard, Olivier

    2012-01-01

    We address the question of optimization of the microalgal biomass long term productivity in the framework of production in photobioreactors under the influence of day/night cycles. For that, we propose a simple bioreactor model accounting for light attenuation in the reactor due to biomass density and obtain the control law that optimizes productivity over a single day through the application of Pontryagin's maximum principle, with the dilution rate being the main control. An important constraint on the obtained solution is that the biomass in the reactor should be at the same level at the beginning and at the end of the day so that the same control can be applied everyday and optimizes some form of long term productivity. Several scenarios are possible depending on the microalgae's strain parameters and the maximal admissible value of the dilution rate: bang-bang or bang-singular-bang control or, if the growth rate of the algae is very strong in the presence of light, constant maximal dilution. A bifurcation...

  3. Thermo-chemical conversion of dairy waste based biomass through direct firing 

    E-Print Network [OSTI]

    Carlin, Nicholas Thomas

    2007-04-25

    ...........................................................................5 II LITERATURE REVIEW.......................................................................................6 Typical Dairy Biomass Removal and Processing ......................................6 Solid Separation... ................................................................36 b) Conservation of Energy ..........................................................41 c) Cofiring Dairy Biomass with Additional Fuel........................44 Model II: Regenerative Combustion System for Flushed Dairy Manure...

  4. Dynamic modelling of high biomass density cultivation and biohydrogen production in different scales of flat plate photobioreactors

    E-Print Network [OSTI]

    Zhang, Dongda; Dechatiwongse, Pongsathorn; del Rio-Chanona, Ehecatl Antonio; Maitland, Geoffrey C.; Hellgardt, Klaus; Vassiliadis, Vassilios S.

    2015-06-04

    stream_source_info Zhang et al 2015 Biotechnology and Bioengineering.pdf.txt stream_content_type text/plain stream_size 42360 Content-Encoding UTF-8 stream_name Zhang et al 2015 Biotechnology and Bioengineering.pdf.txt Content-Type text... effects in the induction of hydrogen production with Chlamydomonas reinhardtii: Part I. Model development and parameter identification. Biotechnology and Bioengineering, 102(1), 232–245. doi:10.1002/bit.22034 Giannelli, L., & Torzillo, G. (2012). Hydrogen...

  5. Liquid Fuel Production from Biomass via High Temperature Steam Electrolysis

    SciTech Connect (OSTI)

    Grant L. Hawkes; Michael G. McKellar

    2009-11-01

    A process model of syngas production using high temperature electrolysis and biomass gasification is presented. Process heat from the biomass gasifier is used to heat steam for the hydrogen production via the high temperature steam electrolysis process. Hydrogen from electrolysis allows a high utilization of the biomass carbon for syngas production. Oxygen produced form the electrolysis process is used to control the oxidation rate in the oxygen-fed biomass gasifier. Based on the gasifier temperature, 94% to 95% of the carbon in the biomass becomes carbon monoxide in the syngas (carbon monoxide and hydrogen). Assuming the thermal efficiency of the power cycle for electricity generation is 50%, (as expected from GEN IV nuclear reactors), the syngas production efficiency ranges from 70% to 73% as the gasifier temperature decreases from 1900 K to 1500 K. Parametric studies of system pressure, biomass moisture content and low temperature alkaline electrolysis are also presented.

  6. Report on Scenario Development and Analysis

    E-Print Network [OSTI]

    ................................................................................................................................................4 Scenario 1: Higher wind penetration ..........................................................................................................4 Scenario 4: Reducing Cost of Electricity-as-usual ................................................................................................................................7 Scenario 1: Higher Wind Penetration

  7. Tracy Biomass Biomass Facility | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergy FacilitiesInformationTown700testing inBiomass

  8. NREL: Biomass Research - Biomass Characterization Capabilities

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14 Contact:News Releases |NRELBiochemical ConversionBiomass

  9. Biomass Cookstoves Technical Meeting: Summary Report | Department...

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

    Biomass Cookstoves Technical Meeting: Summary Report Biomass Cookstoves Technical Meeting: Summary Report In regions where biomass is a traditional fuel for cooking, improved...

  10. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Figure 1: West Biofuels Biomass Gasification to Power 1: West Biofuels Biomass Gasification to Power Process unlikely  that  a  biomass  gasification  power  plant 

  11. Tribal Renewable Energy Curriculum Foundational Course: Biomass...

    Office of Environmental Management (EM)

    Biomass Tribal Renewable Energy Curriculum Foundational Course: Biomass Watch the U.S. Department of Energy Office of Indian Energy foundational course webinar on biomass renewable...

  12. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Figure 1: West Biofuels Biomass Gasification to Power involved  in  gasification  of  biomass  to  produce  fuel 1: West Biofuels Biomass Gasification to Power Process 

  13. Biomass Boiler for Food Processing Applications | Department...

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

    Biomass Boiler for Food Processing Applications Biomass Boiler for Food Processing Applications Biomass Boiler Uses a Combination of Wood Waste and Tire-Derived Fuel In 2011, the...

  14. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Biofuels, LLC  UCSD Biomass to Power  Economic Feasibility Figure 1: West Biofuels Biomass Gasification to Power rates..……………………. ……31  UCSD Biomass to Power ? Feasibility 

  15. Kiefer Landfill Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    Kiefer Landfill Biomass Facility Jump to: navigation, search Name Kiefer Landfill Biomass Facility Facility Kiefer Landfill Sector Biomass Facility Type Landfill Gas Location...

  16. Supply Chain Sustainability Analysis of Indirect Liquefaction of Blended Biomass to Produce High Octane Gasoline

    SciTech Connect (OSTI)

    Cai, Hao; Canter, Christina E.; Dunn, Jennifer B.; Tan, Eric; Biddy, Mary; Talmadge, Michael; Hartley, Damon S.; Snowden-Swan, Lesley

    2015-09-01

    The Department of Energy’s (DOE) Bioenergy Technologies Office (BETO) aims at developing and deploying technologies to transform renewable biomass resources into commercially viable, high-performance biofuels, bioproducts and biopower through public and private partnerships (DOE, 2015). BETO also performs a supply chain sustainability analysis (SCSA). This report describes the SCSA of the production of renewable high octane gasoline (HOG) via indirect liquefaction (IDL) of lignocellulosic biomass. This SCSA was developed for the 2017 design case for feedstock logistics (INL, 2014) and for the 2022 target case for HOG production via IDL (Tan et al., 2015). The design includes advancements that are likely and targeted to be achieved by 2017 for the feedstock logistics and 2022 for the IDL conversion process. The 2017 design case for feedstock logistics demonstrated a delivered feedstock cost of $80 per dry U.S. short ton by the year 2017 (INL, 2014). The 2022 design case for the conversion process, as modeled in Tan et al. (2015), uses the feedstock 2017 design case blend of biomass feedstocks consisting of pulpwood, wood residue, switchgrass, and construction and demolition waste (C&D) with performance properties consistent with a sole woody feedstock type (e.g., pine or poplar). The HOG SCSA case considers the 2017 feedstock design case (the blend) as well as individual feedstock cases separately as alternative scenarios when the feedstock blend ratio varies as a result of a change in feedstock availability. These scenarios could be viewed as bounding SCSA results because of distinctive requirements for energy and chemical inputs for the production and logistics of different components of the blend feedstocks.

  17. Northeast Regional Biomass Program

    SciTech Connect (OSTI)

    O'Connell, R.A.

    1991-11-01

    The management structure and program objectives for the Northeast Regional Biomass Program (NRBP) remain unchanged from previous years. Additional funding was provided by the Bonneville Power Administration Regional Biomass Program to continue the publication of articles in the Biologue. The Western Area Power Administration and the Council of Great Lakes Governors funded the project Characterization of Emissions from Burning Woodwaste''. A grant for the ninth year was received from DOE. The Northeast Regional Biomass Steering Committee selected the following four projects for funding for the next fiscal year. (1) Wood Waste Utilization Conference, (2) Performance Evaluation of Wood Systems in Commercial Facilities, (3) Wood Energy Market Utilization Training, (4) Update of the Facility Directory.

  18. YEAR 2 BIOMASS UTILIZATION

    SciTech Connect (OSTI)

    Christopher J. Zygarlicke

    2004-11-01

    This Energy & Environmental Research Center (EERC) Year 2 Biomass Utilization Final Technical Report summarizes multiple projects in biopower or bioenergy, transportation biofuels, and bioproducts. A prototype of a novel advanced power system, termed the high-temperature air furnace (HITAF), was tested for performance while converting biomass and coal blends to energy. Three biomass fuels--wood residue or hog fuel, corn stover, and switchgrass--and Wyoming subbituminous coal were acquired for combustion tests in the 3-million-Btu/hr system. Blend levels were 20% biomass--80% coal on a heat basis. Hog fuel was prepared for the upcoming combustion test by air-drying and processing through a hammer mill and screen. A K-Tron biomass feeder capable of operating in both gravimetric and volumetric modes was selected as the HITAF feed system. Two oxide dispersion-strengthened (ODS) alloys that would be used in the HITAF high-temperature heat exchanger were tested for slag corrosion rates. An alumina layer formed on one particular alloy, which was more corrosion-resistant than a chromia layer that formed on the other alloy. Research activities were completed in the development of an atmospheric pressure, fluidized-bed pyrolysis-type system called the controlled spontaneous reactor (CSR), which is used to process and condition biomass. Tree trimmings were physically and chemically altered by the CSR process, resulting in a fuel that was very suitable for feeding into a coal combustion or gasification system with little or no feed system modifications required. Experimental procedures were successful for producing hydrogen from biomass using the bacteria Thermotoga, a deep-ocean thermal vent organism. Analytical procedures for hydrogen were evaluated, a gas chromatography (GC) method was derived for measuring hydrogen yields, and adaptation culturing and protocols for mutagenesis were initiated to better develop strains that can use biomass cellulose. Fly ash derived from cofiring coal with waste paper, sunflower hulls, and wood waste showed a broad spectrum of chemical and physical characteristics, according to American Society for Testing and Materials (ASTM) C618 procedures. Higher-than-normal levels of magnesium, sodium, and potassium oxide were observed for the biomass-coal fly ash, which may impact utilization in cement replacement in concrete under ASTM requirements. Other niche markets for biomass-derived fly ash were explored. Research was conducted to develop/optimize a catalytic partial oxidation-based concept for a simple, low-cost fuel processor (reformer). Work progressed to evaluate the effects of temperature and denaturant on ethanol catalytic partial oxidation. A catalyst was isolated that had a yield of 24 mole percent, with catalyst coking limited to less than 15% over a period of 2 hours. In biodiesel research, conversion of vegetable oils to biodiesel using an alternative alkaline catalyst was demonstrated without the need for subsequent water washing. In work related to biorefinery technologies, a continuous-flow reactor was used to react ethanol with lactic acid prepared from an ammonium lactate concentrate produced in fermentations conducted at the EERC. Good yields of ester were obtained even though the concentration of lactic acid in the feed was low with respect to the amount of water present. Esterification gave lower yields of ester, owing to the lowered lactic acid content of the feed. All lactic acid fermentation from amylose hydrolysate test trials was completed. Management activities included a decision to extend several projects to December 31, 2003, because of delays in receiving biomass feedstocks for testing and acquisition of commercial matching funds. In strategic studies, methods for producing acetate esters for high-value fibers, fuel additives, solvents, and chemical intermediates were discussed with several commercial entities. Commercial industries have an interest in efficient biomass gasification designs but are waiting for economic incentives. Utility, biorefinery, pulp and paper, or o

  19. Chapter 18: Understanding the Developing Cellulosic Biofuels Industry through Dynamic Modeling

    SciTech Connect (OSTI)

    Newes, E.; Inman, D.; Bush, B.

    2011-01-01

    The purpose of this chapter is to discuss a system dynamics model called the Biomass Scenario Model (BSM), which is being developed by the U.S. Department of Energy as a tool to better understand the interaction of complex policies and their potential effects on the burgeoning cellulosic biofuels industry in the United States. The model has also recently been expanded to include advanced conversion technologies and biofuels (i.e., conversion pathways that yield biomass-based gasoline, diesel, jet fuel, and butanol), but we focus on cellulosic ethanol conversion pathways here. The BSM uses a system dynamics modeling approach (Bush et al., 2008) built on the STELLA software platform.

  20. Status of Light Gaugino Scenarios

    E-Print Network [OSTI]

    Glennys R. Farrar

    1997-10-08

    I summarize recent devlopments in supersymmetry scenarios which leave some or all gauginos light. The emphasis is on experimental and phenomenological progress in the past year.

  1. The Impact of Biomass Feedstock Supply Variability on the Delivered Price to a Biorefinery in the Peace River Region of Alberta, Canada

    SciTech Connect (OSTI)

    Stephen, Jamie [University of British Columbia, Vancouver; Sokhansanj, Shahabaddine [ORNL; Bi, X.T. [University of British Columbia, Vancouver; Sowlati, T. [University of British Columbia, Vancouver; Kloeck, T. [Alberta Agriculture; Townley-Smith, Lawrence [AAFC; Stumborg, Mark [AAFC

    2010-01-01

    Agricultural residue feedstock availability in a given region can vary significantly over the 20 25 year lifetime of a biorefinery. Since delivered price of biomass feedstock to a biorefinery is related to the distance travelled and equipment optimization, and transportation distance increases as productivity decreases, productivity is a primary determinant of feedstock price. Using the Integrated Biomass Supply Analysis and Logistics (IBSAL) modeling environment and a standard round bale harvest and delivery scenario, harvest and delivery price were modelled for minimum, average, and maximum yields at four potential biorefinery sites in the Peace River region of Alberta, Canada. Biorefinery capacities ranged from 50,000 to 500,000 tonnes per year. Delivery cost is a linear function of transportation distance and can be combined with a polynomial harvest function to create a generalized delivered cost function for agricultural residues. The range in delivered cost is substantial and is an important consideration for the operating costs of a biorefinery.

  2. Minimally refined biomass fuel

    DOE Patents [OSTI]

    Pearson, Richard K. (Pleasanton, CA); Hirschfeld, Tomas B. (Livermore, CA)

    1984-01-01

    A minimally refined fluid composition, suitable as a fuel mixture and derived from biomass material, is comprised of one or more water-soluble carbohydrates such as sucrose, one or more alcohols having less than four carbons, and water. The carbohydrate provides the fuel source; water solubilizes the carbohydrates; and the alcohol aids in the combustion of the carbohydrate and reduces the vicosity of the carbohydrate/water solution. Because less energy is required to obtain the carbohydrate from the raw biomass than alcohol, an overall energy savings is realized compared to fuels employing alcohol as the primary fuel.

  3. Burgeoning Biomass: Creating Efficient and Sustainable Forest Biomass Supply Chains in the Rockies

    E-Print Network [OSTI]

    1 Burgeoning Biomass: Creating Efficient and Sustainable Forest Biomass Supply Chains and removing beetle- killed trees, produce a byproduct called woody biomass. Also known as "slash, woody biomass can be collected, processed and transported SUMMARY Woody biomass could be used

  4. Energy Scenarios for East Asia: 2005-2025

    E-Print Network [OSTI]

    Paltsev, Sergey

    We describe several scenarios for economic development and energy use in East Asia based on the MIT Emissions Prediction and Policy Analysis (EPPA) model, a computable general equilibrium model of the world economy. Historic ...

  5. Biomass Thermochemical Conversion Program. 1983 Annual report

    SciTech Connect (OSTI)

    Schiefelbein, G.F.; Stevens, D.J.; Gerber, M.A.

    1984-08-01

    Highlights of progress achieved in the program of thermochemical conversion of biomass into clean fuels during 1983 are summarized. Gasification research projects include: production of a medium-Btu gas without using purified oxygen at Battelle-Columbus Laboratories; high pressure (up to 500 psia) steam-oxygen gasification of biomass in a fluidized bed reactor at IGT; producing synthesis gas via catalytic gasification at PNL; indirect reactor heating methods at the Univ. of Missouri-Rolla and Texas Tech Univ.; improving the reliability, performance, and acceptability of small air-blown gasifiers at Univ. of Florida-Gainesville, Rocky Creek Farm Gasogens, and Cal Recovery Systems. Liquefaction projects include: determination of individual sequential pyrolysis mechanisms at SERI; research at SERI on a unique entrained, ablative fast pyrolysis reactor for supplying the heat fluxes required for fast pyrolysis; work at BNL on rapid pyrolysis of biomass in an atmosphere of methane to increase the yields of olefin and BTX products; research at the Georgia Inst. of Tech. on an entrained rapid pyrolysis reactor to produce higher yields of pyrolysis oil; research on an advanced concept to liquefy very concentrated biomass slurries in an integrated extruder/static mixer reactor at the Univ. of Arizona; and research at PNL on the characterization and upgrading of direct liquefaction oils including research to lower oxygen content and viscosity of the product. Combustion projects include: research on a directly fired wood combustor/gas turbine system at Aerospace Research Corp.; adaptation of Stirling engine external combustion systems to biomass fuels at United Stirling, Inc.; and theoretical modeling and experimental verification of biomass combustion behavior at JPL to increase biomass combustion efficiency and examine the effects of additives on combustion rates. 26 figures, 1 table.

  6. Biomass Feedstock National User Facility

    Office of Energy Efficiency and Renewable Energy (EERE)

    Breakout Session 1B—Integration of Supply Chains I: Breaking Down Barriers Biomass Feedstock National User Facility Kevin L. Kenney, Director, Biomass Feedstock National User Facility, Idaho National Laboratory

  7. Synfuels from biomass grow slowly

    SciTech Connect (OSTI)

    Black, J.; Wedlock, J.C.

    1982-01-01

    Current developments in the manufacture of synfuels are discussed with emphasis on the sources of biomass suitable for synfuels production, processes for converting biomass to synfuels, and the economics of the technology. The sources include wood, nonwood crops, root crops, aquatic biomass, and oils from plants such as soybean, safflower, and peanut. The biomass conversion processes discussed include pyrolysis, gasification, liquefaction, and aerobic and anaerobic digestion.

  8. Selected Findings from Scenario Analysis

    E-Print Network [OSTI]

    of resources (e.g. wind, solar PV, CCCT) when integrated into an existing power system. The System Capacity requirements 7 #12;Now, On To Scenario Comparisons and Observations Net System Cost Least Cost Strategies for 1B, 2B, 2C and 3 A 53 97 123 135 167 178 266 Net System Cost (Billions 2012 $) Probability Scenario 1

  9. Outlook for Biomass Ethanol Production and Demand

    Reports and Publications (EIA)

    2000-01-01

    This paper presents a midterm forecast for biomass ethanol production under three different technology cases for the period 2000 to 2020, based on projections developed from the Energy Information Administration's National Energy Modeling System. An overview of cellulose conversion technology and various feedstock options and a brief history of ethanol usage in the United States are also presented.

  10. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;6-2 #12;APPENDIX 6: Cumulative Watershed Effects Analysis for the Biomass to Energy Project 1. Principal the findings or recommendations of the study. Cumulative watershed effects (CWE) of the Biomass to Energy (B2E

  11. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;12-2 #12;Appendix 12: Biomass to Energy Project Team, Committee Members and Project Advisors Research Team. Nechodom's background is in biomass energy policy development and public policy research. Peter Stine

  12. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY or recommendations of the study. 1. INTRODUCTION 1.1 Domain Description The study area for the Biomass to Energy (B2 and environmental costs and benefits of using forest biomass to generate electrical power while changing fire

  13. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY as a result of emerging biomass opportunities on private industrial and public multiple-use lands (tracked in the vegetation domain) and the quantity of biomass consumed by the wildfire (tracked

  14. 7, 1733917366, 2007 Biomass burning

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA wet season experiment C. H. Mari a Creative Commons License. Atmospheric Chemistry and Physics Discussions Tracing biomass burning plumes from. Mari (marc@aero.obs-mip.fr) 17339 #12;ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA

  15. Arnold Schwarzenegger BIOMASS TO ENERGY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY;10-2 #12;Appendix 10: Power Plant Analysis for Conversion of Forest Remediation Biomass to Renewable Fuels and Electricity 1. Report to the Biomass to Energy Project (B2E) Principal Authors: Dennis Schuetzle, TSS

  16. Biomass Energy Crops: Massachusetts' Potential

    E-Print Network [OSTI]

    Schweik, Charles M.

    plant fuel. We examine potential biomass energy demand in the 5-county area, and then review cropBiomass Energy Crops: Massachusetts' Potential Prepared for: Massachusetts Division of Energy is thought to have significantly more potential than forest biomass energy (Perlack, Wright et al. 2005). One

  17. 13, 3226932289, 2013 Biomass burning

    E-Print Network [OSTI]

    Dong, Xiquan

    ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern Great Plains T (ACP). Please refer to the corresponding final paper in ACP if available. Biomass burning aerosol Geosciences Union. 32269 #12;ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern

  18. Reburn system with feedlot biomass

    DOE Patents [OSTI]

    Annamalai, Kalyan; Sweeten, John M.

    2005-12-13

    The present invention pertains to the use of feedlot biomass as reburn fuel matter to reduce NO.sub.x emissions. According to one embodiment of the invention, feedlot biomass is used as the reburn fuel to reduce NO.sub.x. The invention also includes burners and boiler in which feedlot biomass serves a reburn fuel.

  19. FY12 Biomass Program Congressional Budget Request

    SciTech Connect (OSTI)

    none,

    2011-02-01

    FY12 budget and funding for the Biomass Program biomass and biorefinery systems research development and deployment.

  20. Estimating biomass on CRP pastureland: A comparison of remote sensing techniques

    E-Print Network [OSTI]

    Lawrence, Rick L.

    Estimating biomass on CRP pastureland: A comparison of remote sensing techniques Tucker F. Porter Accepted 31 January 2014 Available online 21 February 2014 Keywords: Biomass estimation model NDVI Bandwise regression Crop circle sensor Landsat imagery a b s t r a c t Biomass from land enrolled in the Conservation

  1. Executive Summary High-Yield Scenario Workshop Series Report

    SciTech Connect (OSTI)

    Leslie Park Ovard; Thomas H. Ulrich; David J. Muth Jr.; J. Richard Hess; Steven Thomas; Bryce Stokes

    2009-12-01

    To get a collective sense of the impact of research and development (R&D) on biomass resource availability, and to determine the feasibility that yields higher than baseline assumptions used for past assessments could be achieved to support U.S. energy independence, an alternate “High-Yield Scenario” (HYS) concept was presented to industry experts at a series of workshops held in December 2009. The workshops explored future production of corn/agricultural crop residues, herbaceous energy crops (HECs), and woody energy crops (WECs). This executive summary reports the findings of that workshop.

  2. Clean fractionation of biomass

    SciTech Connect (OSTI)

    Not Available

    1995-01-01

    The US Department of Energy (DOE) Alternative Feedstocks (AF) program is forging new links between the agricultural community and the chemicals industry through support of research and development (R & D) that uses `green` feedstocks to produce chemicals. The program promotes cost-effective industrial use of renewable biomass as feedstocks to manufacture high-volume chemical building blocks. Industrial commercialization of such processes would stimulate the agricultural sector by increasing the demand of agricultural and forestry commodities. New alternatives for American industry may lie in the nation`s forests and fields. The AF program is conducting ongoing research on a clean fractionation process. This project is designed to convert biomass into materials that can be used for chemical processes and products. Clean fractionation separates a single feedstock into individual components cellulose, hemicellulose, and lignin.

  3. Bounding biomass in the Fisher equation

    E-Print Network [OSTI]

    Birch, Daniel A; Young, William R

    2007-01-01

    The FKPP equation with a variable growth rate and advection by an incompressible velocity field is considered as a model for plankton dispersed by ocean currents. If the average growth rate is negative then the model has a survival-extinction transition; the location of this transition in the parameter space is constrained using variational arguments and delimited by simulations. The statistical steady state reached when the system is in the survival region of parameter space is characterized by integral constraints and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct inequalities. In the limit of zero-decorrelation time the velocity field is shown to act as Fickian diffusion with an eddy diffusivity much larger than the molecular diffusivity and this allows a one-dimensional model to predict the biomass, productivity and extinction transitions. All results are illustrated with a simple growth and stirring model.

  4. Bounding biomass in the Fisher equation

    E-Print Network [OSTI]

    Daniel A. Birch; Yue-Kin Tsang; William R. Young

    2007-03-17

    The FKPP equation with a variable growth rate and advection by an incompressible velocity field is considered as a model for plankton dispersed by ocean currents. If the average growth rate is negative then the model has a survival-extinction transition; the location of this transition in the parameter space is constrained using variational arguments and delimited by simulations. The statistical steady state reached when the system is in the survival region of parameter space is characterized by integral constraints and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct inequalities. In the limit of zero-decorrelation time the velocity field is shown to act as Fickian diffusion with an eddy diffusivity much larger than the molecular diffusivity and this allows a one-dimensional model to predict the biomass, productivity and extinction transitions. All results are illustrated with a simple growth and stirring model.

  5. Hydrolysis of biomass material

    DOE Patents [OSTI]

    Schmidt, Andrew J.; Orth, Rick J.; Franz, James A.; Alnajjar, Mikhail

    2004-02-17

    A method for selective hydrolysis of the hemicellulose component of a biomass material. The selective hydrolysis produces water-soluble small molecules, particularly monosaccharides. One embodiment includes solubilizing at least a portion of the hemicellulose and subsequently hydrolyzing the solubilized hemicellulose to produce at least one monosaccharide. A second embodiment includes solubilizing at least a portion of the hemicellulose and subsequently enzymatically hydrolyzing the solubilized hemicellulose to produce at least one monosaccharide. A third embodiment includes solubilizing at least a portion of the hemicellulose by heating the biomass material to greater than 110.degree. C. resulting in an aqueous portion that includes the solubilized hemicellulose and a water insoluble solids portion and subsequently separating the aqueous portion from the water insoluble solids portion. A fourth embodiment is a method for making a composition that includes cellulose, at least one protein and less than about 30 weight % hemicellulose, the method including solubilizing at least a portion of hemicellulose present in a biomass material that also includes cellulose and at least one protein and subsequently separating the solubilized hemicellulose from the cellulose and at least one protein.

  6. Scenarios for Deep Carbon Emission Reductions from Electricity by 2050 in Western North America Using the SWITCH Electric Power Sector Planning Model

    E-Print Network [OSTI]

    Nelson, James Henry

    2013-01-01

    wind   energy:   modeling   the   competition   between   gas   turbines  Wind   Energy   Association   (CANWEA,   2012)   on   wind   turbine  Wind  Energy  Association   California  Air  Resources  Board   Combined  Cycle  Gas  Turbine  

  7. SCENARIOS FOR DEEP CARBON EMISSION REDUCTIONS FROM ELECTRICITY BY 2050 IN WESTERN NORTH AMERICA USING THE SWITCH ELECTRIC POWER SECTOR PLANNING MODEL California's Carbon Challenge Phase II Volume II

    SciTech Connect (OSTI)

    Nelson, James; Mileva, Ana; Johnston, Josiah; Kammen, Daniel; Wei, Max; Greenblatt, Jeffrey

    2014-01-01

    This study used a state-of-the-art planning model called SWITCH for the electric power system to investigate the evolution of the power systems of California and western North America from present-day to 2050 in the context of deep decarbonization of the economy. Researchers concluded that drastic power system carbon emission reductions were feasible by 2050 under a wide range of possible futures. The average cost of power in 2050 would range between $149 to $232 per megawatt hour across scenarios, a 21 to 88 percent increase relative to a business-as-usual scenario, and a 38 to 115 percent increase relative to the present-day cost of power. The power system would need to undergo sweeping change to rapidly decarbonize. Between present-day and 2030 the evolution of the Western Electricity Coordinating Council power system was dominated by implementing aggressive energy efficiency measures, installing renewable energy and gas-fired generation facilities and retiring coal-fired generation. Deploying wind, solar and geothermal power in the 2040 timeframe reduced power system emissions by displacing gas-fired generation. This trend continued for wind and solar in the 2050 timeframe but was accompanied by large amounts of new storage and long-distance high-voltage transmission capacity. Electricity storage was used primarily to move solar energy from the daytime into the night to charge electric vehicles and meet demand from electrified heating. Transmission capacity over the California border increased by 40 - 220 percent by 2050, implying that transmission siting, permitting, and regional cooperation will become increasingly important. California remained a net electricity importer in all scenarios investigated. Wind and solar power were key elements in power system decarbonization in 2050 if no new nuclear capacity was built. The amount of installed gas capacity remained relatively constant between present-day and 2050, although carbon capture and sequestration was installed on some gas plants by 2050.

  8. CLIMATE CHANGE AND SEA LEVEL RISE SCENARIOS FOR CALIFORNIA

    E-Print Network [OSTI]

    CLIMATE CHANGE AND SEA LEVEL RISE SCENARIOS FOR CALIFORNIA VULNERABILITY AND ADAPTATION ASSESSMENT A White Paper from the California Energy Commission's California Climate Change Center for Climate Model Diagnosis and Intercomparison and the World Climate Research Program (WCRP) Working Group

  9. CLIMATE CHANGE SCENARIOS FOR THE SAN FRANCISCO REGION

    E-Print Network [OSTI]

    CLIMATE CHANGE SCENARIOS FOR THE SAN FRANCISCO REGION A White Paper from the California Energy Commission's California Climate Change Center JULY 2012 CEC5002012042 Prepared for: California for useful discussion and downscaling information. For global climate model simulations, the authors

  10. Logistics, Costs, and GHG Impacts of Utility Scale Cofiring with 20% Biomass

    SciTech Connect (OSTI)

    Boardman, Richard D.; Cafferty, Kara G.; Nichol, Corrie; Searcy, Erin M.; Westover, Tyler; Wood, Richard; Bearden, Mark D.; Cabe, James E.; Drennan, Corinne; Jones, Susanne B.; Male, Jonathan L.; Muntean, George G.; Snowden-Swan, Lesley J.; Widder, Sarah H.

    2014-07-22

    This report presents the results of an evaluation of utility-scale biomass cofiring in large pulverized coal power plants. The purpose of this evaluation is to assess the cost and greenhouse gas reduction benefits of substituting relatively high volumes of biomass in coal. Two scenarios for cofiring up to 20% biomass with coal (on a lower heating value basis) are presented; (1) woody biomass in central Alabama where Southern Pine is currently produced for the wood products and paper industries, and (2) purpose-grown switchgrass in the Ohio River Valley. These examples are representative of regions where renewable biomass growth rates are high in correspondence with major U.S. heartland power production. While these scenarios may provide a realistic reference for comparing the relative benefits of using a high volume of biomass for power production, this evaluation is not intended to be an analysis of policies concerning renewable portfolio standards or the optimal use of biomass for energy production in the U.S.

  11. Interactions of Lignin and Hemicellulose and Effects on Biomass Deconstruction

    E-Print Network [OSTI]

    Li, Hongjia

    2012-01-01

    such lignocellulosic biomass feedstocks into ethanol via atools. Different biomass feedstocks have different cell wallmajor lignocellulosic biomass feedstocks, except softwoods,

  12. Remotely sensed heat anomalies linked with Amazonian forest biomass declines

    E-Print Network [OSTI]

    Toomey, M.; Roberts, D. A.; Still, C.; Goulden, M. L.; McFadden, J. P.

    2011-01-01

    with Amazonian forest biomass declines Michael Toomey, 1 Darof aboveground living biomass (p biomass declines, Geophys. Res.

  13. Estimating Biomass in the Mountain Regions of Bwindi Impenetrable National Park, Uganda using Radar and Optical Remote Sensing 

    E-Print Network [OSTI]

    Fedrigo, Melissa

    2009-11-26

    Field measured estimates of aboveground biomass (AGB) for 15 transects in Bwindi Impenetrable National Park (BINP), Uganda were used to generate a number of prediction models for estimating aboveground biomass (AGB) over the full extent of BINP. AGB...

  14. 2015 Standard Scenarios Annual Report: U.S. Electric Sector Scenario Exploration

    SciTech Connect (OSTI)

    Sullivan, Patrick; Cole, Wesley; Blair, Nate; Lantz, Eric; Krishnan, Venkat; Mai, Trieu; Mulcahy, David; Porro, Gian

    2015-07-16

    This report is one of several products resulting from an initial effort to provide a consistent set of technology cost and performance data and to define a conceptual and consistent scenario framework that can be used in the National Renewable Energy Laboratory’s (NREL’s) future analyses. The long-term objective of this effort is to identify a range of possible futures of the U.S. electricity sector in which to consider specific energy system issues through (1) defining a set of prospective scenarios that bound ranges of key technology, market, and policy assumptions and (2) assessing these scenarios in NREL’s market models to understand the range of resulting outcomes, including energy technology deployment and production, energy prices, and carbon dioxide (CO2) emissions.

  15. System and process for biomass treatment

    DOE Patents [OSTI]

    Dunson, Jr., James B; Tucker, III, Melvin P; Elander, Richard T; Lyons, Robert C

    2013-08-20

    A system including an apparatus is presented for treatment of biomass that allows successful biomass treatment at a high solids dry weight of biomass in the biomass mixture. The design of the system provides extensive distribution of a reactant by spreading the reactant over the biomass as the reactant is introduced through an injection lance, while the biomass is rotated using baffles. The apparatus system to provide extensive assimilation of the reactant into biomass using baffles to lift and drop the biomass, as well as attrition media which fall onto the biomass, to enhance the treatment process.

  16. Biomass Rapid Analysis Network (BRAN)

    SciTech Connect (OSTI)

    Not Available

    2003-10-01

    Helping the emerging biotechnology industry develop new tools and methods for real-time analysis of biomass feedstocks, process intermediates and The Biomass Rapid Analysis Network is designed to fast track the development of modern tools and methods for biomass analysis to accelerate the development of the emerging industry. The network will be led by industry and organized and coordinated through the National Renewable Energy Lab. The network will provide training and other activities of interest to BRAN members. BRAN members will share the cost and work of rapid analysis method development, validate the new methods, and work together to develop the training for the future biomass conversion workforce.

  17. Biomass 2013: Breakout Speaker Biographies

    Office of Energy Efficiency and Renewable Energy (EERE)

    This document outlines the biographies of the breakout speakers for Biomass 2013, held July 31-August 1 in Washington, D.C.

  18. Biomass Production and Nitrogen Recovery

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

    Project Peer Review WBS 4.2.2.10: Biomass Production and Nitrogen Recovery Date: March 23, 2015 Technology Area Review: Sustainability Principal Investigator: M. Cristina Negri...

  19. Hydrothermal Liquefaction of Biomass

    SciTech Connect (OSTI)

    Elliott, Douglas C.

    2010-12-10

    Hydrothermal liquefaction technology is describes in its relationship to fast pyrolysis of biomass. The scope of work at PNNL is discussed and some intial results are presented. HydroThermal Liquefaction (HTL), called high-pressure liquefaction in earlier years, is an alternative process for conversion of biomass into liquid products. Some experts consider it to be pyrolysis in solvent phase. It is typically performed at about 350 C and 200 atm pressure such that the water carrier for biomass slurry is maintained in a liquid phase, i.e. below super-critical conditions. In some applications catalysts and/or reducing gases have been added to the system with the expectation of producing higher yields of higher quality products. Slurry agents ('carriers') evaluated have included water, various hydrocarbon oils and recycled bio-oil. High-pressure pumping of biomass slurry has been a major limitation in the process development. Process research in this field faded away in the 1990s except for the HydroThermal Upgrading (HTU) effort in the Netherlands, but has new resurgence with other renewable fuels in light of the increased oil prices and climate change concerns. Research restarted at Pacific Northwest National Laboratory (PNNL) in 2007 with a project, 'HydroThermal Liquefaction of Agricultural and Biorefinery Residues' with partners Archer-Daniels-Midland Company and ConocoPhillips. Through bench-scale experimentation in a continuous-flow system this project investigated the bio-oil yield and quality that could be achieved from a range of biomass feedstocks and derivatives. The project was completed earlier this year with the issuance of the final report. HydroThermal Liquefaction research continues within the National Advanced Biofuels Consortium with the effort focused at PNNL. The bench-scale reactor is being used for conversion of lignocellulosic biomass including pine forest residue and corn stover. A complementary project is an international collaboration with Canada to investigate kelp (seaweed) as a biomass feedstock. The collaborative project includes process testing of the kelp in HydroThermal Liquefaction in the bench-scale unit at PNNL. HydroThermal Liquefaction at PNNL is performed in the hydrothermal processing bench-scale reactor system. Slurries of biomass are prepared in the laboratory from whole ground biomass materials. Both wet processing and dry processing mills can be used, but the wet milling to final slurry is accomplished in a stirred ball mill filled with angle-cut stainless steel shot. The PNNL HTL system, as shown in the figure, is a continuous-flow system including a 1-litre stirred tank preheater/reactor, which can be connected to a 1-litre tubular reactor. The product is filtered at high-pressure to remove mineral precipitate before it is collected in the two high-pressure collectors, which allow the liquid products to be collected batchwise and recovered alternately from the process flow. The filter can be intermittently back-flushed as needed during the run to maintain operation. By-product gas is vented out the wet test meter for volume measurement and samples are collected for gas chromatography compositional analysis. The bio-oil product is analyzed for elemental content in order to calculate mass and elemental balances around the experiments. Detailed chemical analysis is performed by gas chromatography-mass spectrometry and 13-C nuclear magnetic resonance is used to evaluate functional group types in the bio-oil. Sufficient product is produced to allow subsequent catalytic hydroprocessing to produce liquid hydrocarbon fuels. The product bio-oil from hydrothermal liquefaction is typically a more viscous product compared to fast pyrolysis bio-oil. There are several reasons for this difference. The HTL bio-oil contains a lower level of oxygen because of more extensive secondary reaction of the pyrolysis products. There are less amounts of the many light oxygenates derived from the carbohydrate structures as they have been further reacted to phenolic Aldol condensation products. The bio-oil

  20. Biomass: Biogas Generator

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura|Bilayer GrapheneW.HelpReport) |Biomass andBIOGAS

  1. Biomass: Potato Power

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura|Bilayer GrapheneW.HelpReport) |Biomass andBIOGASPOTATO

  2. Biomass -Feedstock User Facility

    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 on Delicious Rank EERE:FinancingPetroleum Based Fuels Researchof Energy|Make FuelsBioindustryWBS 1.2.3.3 Biomass -

  3. Sandia Energy - Biomass

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULI ProgramPhysical SocietylasersPondBiomass Home

  4. Science Activities in Biomass

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-ThroughputUpcoming ReleaseSecurityPediatric CancerSchedulesItemActivities in Biomass

  5. Sandia Energy - Biomass

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni >ScientificAppliedBiofuels Home AnalysisBiomass Home

  6. Mobility chains analysis of technologies for passenger cars and light duty vehicles fueled with biofuels : application of the Greet model to project the role of biomass in America's energy future (RBAEF) project.

    SciTech Connect (OSTI)

    Wu, M.; Wu, Y.; Wang, M; Energy Systems

    2008-01-31

    The Role of Biomass in America's Energy Future (RBAEF) is a multi-institution, multiple-sponsor research project. The primary focus of the project is to analyze and assess the potential of transportation fuels derived from cellulosic biomass in the years 2015 to 2030. For this project, researchers at Dartmouth College and Princeton University designed and simulated an advanced fermentation process to produce fuel ethanol/protein, a thermochemical process to produce Fischer-Tropsch diesel (FTD) and dimethyl ether (DME), and a combined heat and power plant to co-produce steam and electricity using the ASPEN Plus{trademark} model. With support from the U.S. Department of Energy (DOE), Argonne National Laboratory (ANL) conducted, for the RBAEF project, a mobility chains or well-to-wheels (WTW) analysis using the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model developed at ANL. The mobility chains analysis was intended to estimate the energy consumption and emissions associated with the use of different production biofuels in light-duty vehicle technologies.

  7. Alternative Geothermal Power Production Scenarios

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

    Sullivan, John

    The information given in this file pertains to Argonne LCAs of the plant cycle stage for a set of ten new geothermal scenario pairs, each comprised of a reference and improved case. These analyses were conducted to compare environmental performances among the scenarios and cases. The types of plants evaluated are hydrothermal binary and flash and Enhanced Geothermal Systems (EGS) binary and flash plants. Each scenario pair was developed by the LCOE group using GETEM as a way to identify plant operational and resource combinations that could reduce geothermal power plant LCOE values. Based on the specified plant and well field characteristics (plant type, capacity, capacity factor and lifetime, and well numbers and depths) for each case of each pair, Argonne generated a corresponding set of material to power ratios (MPRs) and greenhouse gas and fossil energy ratios.

  8. Alternative Geothermal Power Production Scenarios

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

    Sullivan, John

    2014-03-14

    The information given in this file pertains to Argonne LCAs of the plant cycle stage for a set of ten new geothermal scenario pairs, each comprised of a reference and improved case. These analyses were conducted to compare environmental performances among the scenarios and cases. The types of plants evaluated are hydrothermal binary and flash and Enhanced Geothermal Systems (EGS) binary and flash plants. Each scenario pair was developed by the LCOE group using GETEM as a way to identify plant operational and resource combinations that could reduce geothermal power plant LCOE values. Based on the specified plant and well field characteristics (plant type, capacity, capacity factor and lifetime, and well numbers and depths) for each case of each pair, Argonne generated a corresponding set of material to power ratios (MPRs) and greenhouse gas and fossil energy ratios.

  9. California Energy Demand Scenario Projections to 2050

    E-Print Network [OSTI]

    McCarthy, Ryan; Yang, Christopher; Ogden, Joan M.

    2008-01-01

    duty fuel demand in alternate scenarios. ..for light-duty fuel demand in alternate scenarios. Minimum52 Heavy-duty vehicle fuel demand for each alternate

  10. Clean fractionation of biomass

    SciTech Connect (OSTI)

    1995-09-01

    The US DOE Alternative Feedstocks (AF) program is forging new links between the agricultural community and the chemicals industry through support of research and development (R&D) that uses green feedstocks to produce chemicals. The program promotes cost-effective industrial use of renewable biomass as feedstocks to manufacture high-volume chemical building blocks. Industrial commercialization of such processes would stimulate the agricultural sector by increasing the demand of agricultural and forestry commodities. A consortium of five DOE national laboratories has been formed with the objectives of providing industry with a broad range of expertise and helping to lower the risk of new process development through federal cost sharing. The AF program is conducting ongoing research on a clean fractionation process, designed to convert biomass into materials that can be used for chemical processes and products. The focus of the clean fractionation research is to demonstrate to industry that one technology can successfully separate all types of feedstocks into predictable types of chemical intermediates.

  11. GASIFICATION BASED BIOMASS CO-FIRING

    SciTech Connect (OSTI)

    Babul Patel; Kevin McQuigg; Robert Toerne; John Bick

    2003-01-01

    Biomass gasification offers a practical way to use this widespread fuel source for co-firing traditional large utility boilers. The gasification process converts biomass into a low Btu producer gas that can be used as a supplemental fuel in an existing utility boiler. This strategy of co-firing is compatible with a variety of conventional boilers including natural gas and oil fired boilers, pulverized coal fired conventional and cyclone boilers. Gasification has the potential to address all problems associated with the other types of co-firing with minimum modifications to the existing boiler systems. Gasification can also utilize biomass sources that have been previously unsuitable due to size or processing requirements, facilitating a wider selection of biomass as fuel and providing opportunity in reduction of carbon dioxide emissions to the atmosphere through the commercialization of this technology. This study evaluated two plants: Wester Kentucky Energy Corporation's (WKE's) Reid Plant and TXU Energy's Monticello Plant for technical and economical feasibility. These plants were selected for their proximity to large supply of poultry litter in the area. The Reid plant is located in Henderson County in southwest Kentucky, with a large poultry processing facility nearby. Within a fifty-mile radius of the Reid plant, there are large-scale poultry farms that generate over 75,000 tons/year of poultry litter. The local poultry farmers are actively seeking environmentally more benign alternatives to the current use of the litter as landfill or as a farm spread as fertilizer. The Monticello plant is located in Titus County, TX near the town of Pittsburgh, TX, where again a large poultry processor and poultry farmers in the area generate over 110,000 tons/year of poultry litter. Disposal of this litter in the area is also a concern. This project offers a model opportunity to demonstrate the feasibility of biomass co-firing and at the same time eliminate poultry litter disposal problems for the area's poultry farmers.

  12. Treatment of biomass to obtain fermentable sugars

    DOE Patents [OSTI]

    Dunson, Jr., James B. (Newark, DE); Tucker, Melvin (Lakewood, CO); Elander, Richard (Evergreen, CO); Hennessey, Susan M. (Avondale, PA)

    2011-04-26

    Biomass is pretreated using a low concentration of aqueous ammonia at high biomass concentration. Pretreated biomass is further hydrolyzed with a saccharification enzyme consortium. Fermentable sugars released by saccharification may be utilized for the production of target chemicals by fermentation.

  13. BIOMASS LIQUEFACTION EFFORTS IN THE UNITED STATES

    E-Print Network [OSTI]

    Ergun, Sabri

    2012-01-01

    icat ion Preheat zone Biomass liquefaction Tubular reactor (design is shown in Figure 7, C I Biomass ua efaction Fic LBL Process BiOMASS t NON-REVERS lNG CYCLONE CONDENSER (

  14. OUT Success Stories: Biomass Gasifiers

    SciTech Connect (OSTI)

    Jones, J.

    2000-08-31

    The world's first demonstration of an efficient, low-pressure biomass gasifier capable of producing a high-quality fuel is now operating in Vermont. The gasifier converts 200 tons of solid biomass per day into a clean-burning gas with a high energy content for electricity generation.

  15. Process for concentrated biomass saccharification

    DOE Patents [OSTI]

    Hennessey, Susan M. (Avondale, PA); Seapan, Mayis (Landenberg, PA); Elander, Richard T. (Evergreen, CO); Tucker, Melvin P. (Lakewood, CO)

    2010-10-05

    Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

  16. Description of the Scenario Machine

    E-Print Network [OSTI]

    V. M. Lipunov; K. A. Postnov; M. E. Prokhorov; A. I. Bogomazov

    2007-09-26

    We present here an updated description of the "Scenario Machine" code. This tool is used to carry out a population synthesis of binary stars. Previous version of the description can be found at http://xray.sai.msu.ru/~mystery//articles/review/contents.html

  17. Transportation scenarios for risk analysis.

    SciTech Connect (OSTI)

    Weiner, Ruth F.

    2010-09-01

    Transportation risk, like any risk, is defined by the risk triplet: what can happen (the scenario), how likely it is (the probability), and the resulting consequences. This paper evaluates the development of transportation scenarios, the associated probabilities, and the consequences. The most likely radioactive materials transportation scenario is routine, incident-free transportation, which has a probability indistinguishable from unity. Accident scenarios in radioactive materials transportation are of three different types: accidents in which there is no impact on the radioactive cargo, accidents in which some gamma shielding may be lost but there is no release of radioactive material, and accident in which radioactive material may potentially be released. Accident frequencies, obtainable from recorded data validated by the U.S. Department of Transportation, are considered equivalent to accident probabilities in this study. Probabilities of different types of accidents are conditional probabilities, conditional on an accident occurring, and are developed from event trees. Development of all of these probabilities and the associated highway and rail accident event trees are discussed in this paper.

  18. Catalytic Hydrothermal Gasification of Biomass

    SciTech Connect (OSTI)

    Elliott, Douglas C.

    2008-05-06

    A recent development in biomass gasification is the use of a pressurized water processing environment in order that drying of the biomass can be avoided. This paper reviews the research undertaken developing this new option for biomass gasification. This review does not cover wet oxidation or near-atmospheric-pressure steam-gasification of biomass. Laboratory research on hydrothermal gasification of biomass focusing on the use of catalysts is reviewed here, and a companion review focuses on non-catalytic processing. Research includes liquid-phase, sub-critical processing as well as super-critical water processing. The use of heterogeneous catalysts in such a system allows effective operation at lower temperatures, and the issues around the use of catalysts are presented. This review attempts to show the potential of this new processing concept by comparing the various options under development and the results of the research.

  19. Regionalized Global Energy Scenarios Meeting Stringent Climate Targets

    E-Print Network [OSTI]

    Regionalized Global Energy Scenarios Meeting Stringent Climate Targets ­ cost effective fuel in the energy system it is less costly to reduce CO2-emissions #12;Global energy system model #12;Global energy system model Optimisation #12;Global energy system model Optimisation Minimises the total cost under

  20. Hydrogen Production Cost Estimate Using Biomass Gasification...

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

    likely take precedence over biomass for hydrogen production. Thus, the price of biomass feedstocks for hydrogen, in the absence of major federal policy changes, will presumably...

  1. BSCL Use Plan: Solving Biomass Recalcitrance

    SciTech Connect (OSTI)

    Himmel, M.; Vinzant, T.; Bower, S.; Jechura, J.

    2005-08-01

    Technical report describing NREL's new Biomass Surface Characterization Laboratory (BSCL). The BSCL was constructed to provide the most modern commercial surface characterization equipment for studying biomass surfaces.

  2. Biomass 2013: Presentations | Department of Energy

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

    3: Presentations Biomass 2013: Presentations This page displays the links to available presentations from Day One and Day Two of the Bioenergy Technologies Office's (BETO) Biomass...

  3. Supplying High-Quality, Raw Biomass

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

    Supplying High-Quality, Raw Biomass The building blocks to supply high-quality raw biomass start with harvesting and collection practices, product storage and recommendations of...

  4. Symbiosis: Addressing Biomass Production Challenges and Climate...

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

    Symbiosis: Addressing Biomass Production Challenges and Climate Change Symbiosis: Addressing Biomass Production Challenges and Climate Change This presentation was the opening...

  5. Converting Biomass to High-Value Feedstocks

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

    Converting Biomass to High-Value Feedstocks Advanced feedstocks play an important role in economically and efficiently converting biomass into bioenergy products. Advanced...

  6. Hydrogen Production Cost Estimate Using Biomass Gasification...

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

    Cost Estimate Using Biomass Gasification: Independent Review Hydrogen Production Cost Estimate Using Biomass Gasification: Independent Review This independent review is the...

  7. Providing the Resource: Biomass Feedstocks & Logistics

    SciTech Connect (OSTI)

    2010-03-01

    A summary of Biomass Program resource assessment activities, feedstock trials, and harvest, storage, handling, and transport activities to support biomass feedstock development and use.

  8. CO2 Mitigation Potential of Biomass Energy Plantations in DevelopingRegions

    E-Print Network [OSTI]

    --Latin America and Asia 11 --A Case Study of Biomass Energy Plantations in the Northeast of Brazil 12 5 are modernized. A recent assessment by Johansson et al. [1993] of the potential for renewable energy to global energy supply in a renewables-intensive global energy scenario (RIGES), providing 35% (206 EJ

  9. 2007-No54-BoilingPoint Health and Greenhouse Gas Impacts of Biomass and Fossil Fuel

    E-Print Network [OSTI]

    Kammen, Daniel M.

    2007-No54-BoilingPoint Theme Health and Greenhouse Gas Impacts of Biomass and Fossil Fuel Energy, but both the human health and envi- ronmental impacts associated with reliance on this fuel structure of fossil-fuel energy systems. These scenarios are analysed for various environmental and health impacts

  10. Remote sensing data of biomass and fire history were used to characterise woodland degradation across the landscape (fig. 2). Fires

    E-Print Network [OSTI]

    Remote sensing data of biomass and fire history were used to characterise woodland degradation. Results MODEL OUTPUT There is potential for considerable biomass variation as a result of fire (fig. 3 biomass woodlands are particularly vulnerable to degradation, though were also found to be capable

  11. The jamming scenario - an introduction and outlook

    E-Print Network [OSTI]

    Andrea J. Liu; Sidney R. Nagel; Wim van Saarloos; Matthieu Wyart

    2011-01-27

    The jamming scenario of disordered media, formulated about 10 years ago, has in recent years been advanced by analyzing model systems of granular media. This has led to various new concepts that are increasingly being explored in in a variety of systems. This chapter contains an introductory review of these recent developments and provides an outlook on their applicability to different physical systems and on future directions. The first part of the paper is devoted to an overview of the findings for model systems of frictionless spheres, focussing on the excess of low-frequency modes as the jamming point is approached. Particular attention is paid to a discussion of the cross-over frequency and length scales that govern this approach. We then discuss the effects of particle asphericity and static friction, the applicability to bubble models for wet foams in which the friction is dynamic, the dynamical arrest in colloids, and the implications for molecular glasses.

  12. Biomass Surface Characterization Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    This fact sheet provides information about Biomass Surface Characterization Laboratory capabilities and applications at NREL.

  13. Biomass for energy and materials Local technologies -

    E-Print Network [OSTI]

    - holds Industry Agricult. Pretreatment of biomass and waste CO2 Gasification Combustion MicrobialBiomass for energy and materials Local technologies - in a global perspective Erik Steen Jensen Bioenergy and biomass Biosystems Department Risø National Laboratory Denmark #12;Biomass - a local resource

  14. Biomass Program 2007 Accomplishments - Thermochemical Conversion Platform

    SciTech Connect (OSTI)

    none,

    2009-10-27

    This document details the accomplishments of the Biomass Program Thermochemical Conversion Platform in 2007.

  15. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    deployment  of  renewable projects.   Southern California Edison (SCE) has one such program for biomass 

  16. Biomass Program 2007 Accomplishments - Biochemical Conversion Platform

    SciTech Connect (OSTI)

    none,

    2009-10-27

    This document details accomplishments of the Biomass Program Biochemical Conversion Platform accomplishments in 2007.

  17. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Direct Costs Utilities Labor:    Labor  costs  constitute  the  largest  Consumables annual  operating  costs  excluding  biomass  Disposal

  18. Global (International) Energy Policy and Biomass

    SciTech Connect (OSTI)

    Overend, R. P.

    2004-01-01

    Presentation to the California Biomass Collaboration--First Annual Forum, January 8th 2004, Sacramento, California

  19. Cadmium Biosorption Rate in Protonated Sargassum Biomass

    E-Print Network [OSTI]

    Volesky, Bohumil

    Cadmium Biosorption Rate in Protonated Sargassum Biomass J I N B A I Y A N G A N D B O H U M I L V Sargassum fluitans biomass was accompanied by the release of hydrogen protons from the biomass. The uptake the overall biosorption rate of cadmium ions in flat seaweed biomass particles. The overall biosorption

  20. Biomass Program 2007 Accomplishments - Other Technologies

    SciTech Connect (OSTI)

    none,

    2009-10-28

    This document details the accomplishments of the Biomass Program Biodiesel and Other Technologies Platform in 2007.

  1. November 2011 Competition for biomass among

    E-Print Network [OSTI]

    Noble, James S.

    remain high, limiting the development of national or even regional markets for biomass feedstocks. We

  2. Washington State biomass data book

    SciTech Connect (OSTI)

    Deshaye, J.A.; Kerstetter, J.D.

    1991-07-01

    This is the first edition of the Washington State Biomass Databook. It assess sources and approximate costs of biomass fuels, presents a view of current users, identifies potential users in the public and private sectors, and lists prices of competing energy resources. The summary describes key from data from the categories listed above. Part 1, Biomass Supply, presents data increasing levels of detail on agricultural residues, biogas, municipal solid waste, and wood waste. Part 2, Current Industrial and Commercial Use, demonstrates how biomass is successfully being used in existing facilities as an alternative fuel source. Part 3, Potential Demand, describes potential energy-intensive public and private sector facilities. Part 4, Prices of Competing Energy Resources, shows current suppliers of electricity and natural gas and compares utility company rates. 49 refs., 43 figs., 72 tabs.

  3. Diesel fuel from biomass

    SciTech Connect (OSTI)

    Kuester, J.L.

    1984-01-01

    A project to convert various biomass materials to diesel type transportation fuel compatible with current engine designs and the existing distribution system is described. A continuous thermochemical indirect liquefaction approach is used. The system consists of a circulating solid fluidized bed gasification system to produce a synthesis gas containing olefins, hydrogen and carbon monoxide followed by a catalytic liquefaction step to convert the synthesis gas to liquid hydrocarbon fuel. The major emphasis on the project at the present time is to maximize product yield. A level of 60 gals of diesel type fuel per ton of feedstock (dry, ash free basis) is expected. Numerous materials have been processed through the conversion system without any significant change in product quality (essentially C/sub 7/-C/sub 17/ paraffinic hydrocarbons with cetane indicies of 50+). Other tasks in progress include factor studies, process simplification, process control and scale-up to a 10 ton/day Engineering Test Facility. 18 references, 4 figures, 9 tables.

  4. Report on Biomass Drying Technology

    SciTech Connect (OSTI)

    Amos, W. A.

    1999-01-12

    Using dry fuel provides significant benefits to combustion boilers, mainly increased boiler efficiency, lower air emissions, and improved boiler operation. The three main choices for drying biomass are rotary dryers, flash dryers, and superheated steam dryers. Which dryer is chosen for a particular application depends very much on the material characteristics of the biomass, the opportunities for integrating the process and dryer, and the environmental controls needed or already available.

  5. Instructions for CEC-1250E-4 Biomass and Fossil Fuel Usage Report for Biomass Facilities

    E-Print Network [OSTI]

    Instructions for CEC-1250E-4 Biomass and Fossil Fuel Usage Report for Biomass Facilities Biomass energy input basis in the upcoming calendar year? - Please check "yes" or "no." 12. Types of Biomass Fuel Used - Please report the quantity and supplier of the following types of biomass fuel used

  6. Biomass and Bioenergy 31 (2007) 646655 Estimating biomass of individual pine trees using airborne lidar

    E-Print Network [OSTI]

    2007-01-01

    Biomass and Bioenergy 31 (2007) 646­655 Estimating biomass of individual pine trees using airborne biomass and bio-energy feedstocks. The overall goal of this study was to develop a method for assessing aboveground biomass and component biomass for individual trees using airborne lidar data in forest settings

  7. Uncertainties in Life Cycle Greenhouse Gas Emissions from Advanced Biomass Feedstock Logistics Supply Chains in Kansas

    SciTech Connect (OSTI)

    Cafferty, Kara G.; Searcy, Erin M.; Nguyen, Long; Spatari, Sabrina

    2014-11-01

    To meet Energy Independence and Security Act (EISA) cellulosic biofuel mandates, the United States will require an annual domestic supply of about 242 million Mg of biomass by 2022. To improve the feedstock logistics of lignocellulosic biofuels and access available biomass resources from areas with varying yields, commodity systems have been proposed and designed to deliver on-spec biomass feedstocks at preprocessing “depots”, which densify and stabilize the biomass prior to long-distance transport and delivery to centralized biorefineries. The harvesting, preprocessing, and logistics (HPL) of biomass commodity supply chains thus could introduce spatially variable environmental impacts into the biofuel life cycle due to needing to harvest, move, and preprocess biomass from multiple distances that have variable spatial density. This study examines the uncertainty in greenhouse gas (GHG) emissions of corn stover logisticsHPL within a bio-ethanol supply chain in the state of Kansas, where sustainable biomass supply varies spatially. Two scenarios were evaluated each having a different number of depots of varying capacity and location within Kansas relative to a central commodity-receiving biorefinery to test GHG emissions uncertainty. Monte Carlo simulation was used to estimate the spatial uncertainty in the HPL gate-to-gate sequence. The results show that the transport of densified biomass introduces the highest variability and contribution to the carbon footprint of the logistics HPL supply chain (0.2-13 g CO2e/MJ). Moreover, depending upon the biomass availability and its spatial density and surrounding transportation infrastructure (road and rail), logistics HPL processes can increase the variability in life cycle environmental impacts for lignocellulosic biofuels. Within Kansas, life cycle GHG emissions could range from 24 to 41 g CO2e/MJ depending upon the location, size and number of preprocessing depots constructed. However, this range can be minimized through optimizing the siting of preprocessing depots where ample rail infrastructure exists to supply biomass commodity to a regional biorefinery supply system

  8. Entanglement cost in practical scenarios

    E-Print Network [OSTI]

    Francesco Buscemi; Nilanjana Datta

    2011-03-03

    We quantify the one-shot entanglement cost of an arbitrary bipartite state, that is the minimum number of singlets needed by two distant parties to create a single copy of the state up to a finite accuracy, using local operations and classical communication only. This analysis, in contrast to the traditional one, pertains to scenarios of practical relevance, in which resources are finite and transformations can only be achieved approximately. Moreover, it unveils a fundamental relation between two well-known entanglement measures, namely, the Schmidt number and the entanglement of formation. Using this relation, we are able to recover the usual expression of the entanglement cost as a special case.

  9. Biomass District Heat System for Interior Rural Alaska Villages

    SciTech Connect (OSTI)

    Wall, William A.; Parker, Charles R.

    2014-09-01

    Alaska Village Initiatives (AVI) from the outset of the project had a goal of developing an integrated village approach to biomass in Rural Alaskan villages. A successful biomass project had to be ecologically, socially/culturally and economically viable and sustainable. Although many agencies were supportive of biomass programs in villages none had the capacity to deal effectively with developing all of the tools necessary to build a complete integrated program. AVI had a sharp learning curve as well. By the end of the project with all the completed tasks, AVI developed the tools and understanding to connect all of the dots of an integrated village based program. These included initially developing a feasibility model that created the capacity to optimize a biomass system in a village. AVI intent was to develop all aspects or components of a fully integrated biomass program for a village. This meant understand the forest resource and developing a sustainable harvest system that included the “right sized” harvest equipment for the scale of the project. Developing a training program for harvesting and managing the forest for regeneration. Making sure the type, quality, and delivery system matched the needs of the type of boiler or boilers to be installed. AVI intended for each biomass program to be of the scale that would create jobs and a sustainable business.

  10. Addressing an Uncertain Future Using Scenario Analysis

    E-Print Network [OSTI]

    Siddiqui, Afzal S.; Marnay, Chris

    2008-01-01

    a scenario may be an oil price hike in a future year, whichon the impact of high oil prices on the global economy (seethe scenario of a high oil price (of US$35/barrel, which is

  11. Report on Scenario Development and Analysis

    E-Print Network [OSTI]

    Natural Energy Institute School of Ocean and Earth Science and Technology November 2007 #12................................................................................................................................................4 Scenario 1: Higher wind penetration-as-usual ................................................................................................................................7 Scenario 1: Higher Wind Penetration

  12. Fiscalini Farms Biomass Energy Project

    SciTech Connect (OSTI)

    William Stringfellow; Mary Kay Camarillo; Jeremy Hanlon; Michael Jue; Chelsea Spier

    2011-09-30

    In this final report describes and documents research that was conducted by the Ecological Engineering Research Program (EERP) at the University of the Pacific (Stockton, CA) under subcontract to Fiscalini Farms LP for work under the Assistance Agreement DE-EE0001895 'Measurement and Evaluation of a Dairy Anaerobic Digestion/Power Generation System' from the United States Department of Energy, National Energy Technology Laboratory. Fiscalini Farms is operating a 710 kW biomass-energy power plant that uses bio-methane, generated from plant biomass, cheese whey, and cattle manure via mesophilic anaerobic digestion, to produce electricity using an internal combustion engine. The primary objectives of the project were to document baseline conditions for the anaerobic digester and the combined heat and power (CHP) system used for the dairy-based biomass-energy production. The baseline condition of the plant was evaluated in the context of regulatory and economic constraints. In this final report, the operation of the plant between start-up in 2009 and operation in 2010 are documented and an interpretation of the technical data is provided. An economic analysis of the biomass energy system was previously completed (Appendix A) and the results from that study are discussed briefly in this report. Results from the start-up and first year of operation indicate that mesophilic anaerobic digestion of agricultural biomass, combined with an internal combustion engine, is a reliable source of alternative electrical production. A major advantage of biomass energy facilities located on dairy farms appears to be their inherent stability and ability to produce a consistent, 24 hour supply of electricity. However, technical analysis indicated that the Fiscalini Farms system was operating below capacity and that economic sustainability would be improved by increasing loading of feedstocks to the digester. Additional operational modifications, such as increased utilization of waste heat and better documentation of potential of carbon credits, would also improve the economic outlook. Analysis of baseline operational conditions indicated that a reduction in methane emissions and other greenhouse gas savings resulted from implementation of the project. The project results indicate that using anaerobic digestion to produce bio-methane from agricultural biomass is a promising source of electricity, but that significant challenges need to be addressed before dairy-based biomass energy production can be fully integrated into an alternative energy economy. The biomass energy facility was found to be operating undercapacity. Economic analysis indicated a positive economic sustainability, even at the reduced power production levels demonstrated during the baseline period. However, increasing methane generation capacity (via the importation of biomass codigestate) will be critical for increasing electricity output and improving the long-term economic sustainability of the operation. Dairy-based biomass energy plants are operating under strict environmental regulations applicable to both power-production and confined animal facilities and novel approached are being applied to maintain minimal environmental impacts. The use of selective catalytic reduction (SCR) for nitrous oxide control and a biological hydrogen sulfide control system were tested at this facility. Results from this study suggest that biomass energy systems can be compliant with reasonable scientifically based air and water pollution control regulations. The most significant challenge for the development of biomass energy as a viable component of power production on a regional scale is likely to be the availability of energy-rich organic feedstocks. Additionally, there needs to be further development of regional expertise in digester and power plant operations. At the Fiscalini facility, power production was limited by the availability of biomass for methane generation, not the designed system capacity. During the baseline study period, feedstocks included manure, sudan grass silage, and

  13. Integrated Analysis of Market Transformation Scenarios with HyTrans

    SciTech Connect (OSTI)

    Greene, David L [ORNL; Leiby, Paul Newsome [ORNL; Bowman, David Charles [ORNL

    2007-06-01

    This report presents alternative visions of the transition of light-duty vehicle transportation in the United States from petroleum to hydrogen power. It is a supporting document to the U.S. Department of Energy's Summary Report, "Analysis of the Transition to a Hydrogen Economy and the Potential Hydrogen Infrastructure Requirements" (U.S. DOE, 2007). Three alternative early transition scenarios were analyzed using a market simulation model called HyTrans. The HyTrans model simultaneously represents the behavior of fuel suppliers, vehicle manufacturers and consumers, explicitly recognizing the importance of fuel availability and the diversity of vehicle choices to consumers, and dependence of fuel supply on the existence of market demand. Competitive market outcomes are simulated by means of non-linear optimization of social surplus through the year 2050. The three scenarios specify different rates and geographical distributions of market penetration for hydrogen fuel cell vehicles from 2012 through 2025. Scenario 1 leads to 2 million vehicles on U.S. roads by 2025, while Scenarios 2 and 3 result in 5 million and 10 million FCVs in use by 2025, respectively. The HyTrans model "costs out" the transition scenarios and alternative policies for achieving them. It then tests whether the scenarios, together with the achievement of the DOE's technology goals for fuel cell vehicles and hydrogen infrastructure technologies could lead to a sustainable transition to hydrogen powered transportation. Given the achievement of DOE's ambitious technology goals, all three scenarios appear to lead to a sustainable transition to hydrogen. In the absence of early transition deployment effort, no transition is likely to begin before 2045. The cumulative costs of the transition scenarios to the government range from $8 billion to $45 billion, depending on the scenario, the policies adopted and the degree of cost-sharing with industry. In the absence of carbon constraining policies, the transition to hydrogen achieves about the same reduction in CO2 emissions as a transition to advanced gasoline-electric hybrid vehicles. With significant carbon policy, drastic reductions in well-to-wheel CO2 emissions are possible. Energy transition modeling is a newly evolving field and much remains to be done to improve the utility of models like HyTrans.

  14. Vimmerstedt, L. J.; Bush, B. W. 09 BIOMASS FUELS BIOMASS; BIOFUEL...

    Office of Scientific and Technical Information (OSTI)

    Investment on the Growth of the Biofuels Industry Vimmerstedt, L. J.; Bush, B. W. 09 BIOMASS FUELS BIOMASS; BIOFUEL; DEMONSTRATION; DEPLOYMENT; LEARNING; POLICY; SYSTEM DYNAMICS;...

  15. Category:Biomass | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village,8199089°,Analytical Modeling Jump to:Biomass Jump to:

  16. Biomass One LP Biomass Facility | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin:Pontiac Biomass Facility Jump to:Biola,Biomass Facility Jump

  17. Climate effects of seasonally varying Biomass Burning emitted Carbonaceous Aerosols (BBCA)

    E-Print Network [OSTI]

    Jeong, Gill-Ran

    The climate impact of the seasonality of Biomass Burning emitted Carbonaceous Aerosols (BBCA) is studied using an aerosol-climate model coupled with a slab ocean model in a set of 60-year long simulations, driven by BBCA ...

  18. August 2012 Biomass Program Monthly News Blast | Department of...

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

    August 2012 Biomass Program Monthly News Blast August 2012 Biomass Program Monthly News Blast Monthly newsletter for August 2012 from the Department of Energy's Biomass Program....

  19. Biomass Program Monthly News Blast: August | Department of Energy

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

    Biomass Program Monthly News Blast: August Biomass Program Monthly News Blast: August News and updates from the Biomass Program in August 2011. augustnewsblast.pdf More Documents...

  20. Biomass Program Monthly News Blast: May | Department of Energy

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

    Biomass Program Monthly News Blast: May Biomass Program Monthly News Blast: May News and updates from the Biomass Program in May 2011. maynewsblast.pdf More Documents &...

  1. Economic Analysis of a 3MW Biomass Gasification Power Plant

    E-Print Network [OSTI]

    Cattolica, Robert; Lin, Kathy

    2009-01-01

    Collaborative, Biomass gasification / power generationANALYSIS OF A 3MW BIOMASS GASIFICATION POWER PLANT R obert Cbiomass. Figure 1: Biomass Gasification to Power Process

  2. SYNTHESIS GAS UTILIZATION AND PRODUCTION IN A BIOMASS LIQUEFACTION FACILITY

    E-Print Network [OSTI]

    Figueroa, C.

    2012-01-01

    Report "A survey of Biomass Gasification," Department offor a continuous biomass gasification unit. The selectiona combination biomass liquefaction and gasification process

  3. SYNTHESIS GAS UTILIZATION AND PRODUCTION IN A BIOMASS LIQUEFACTION FACILITY

    E-Print Network [OSTI]

    Figueroa, C.

    2012-01-01

    the Symposium on Energy from Biomass and Wastes, August 14,Gasification of Biomass," Department of Energy Contract No.of Biomass Gasification," Department of Energy Contract No.

  4. MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE

    E-Print Network [OSTI]

    Haven, Kendall F.

    2011-01-01

    commercial farm. A biomass energy farm must cover a largeof Symposium on Energy from Biomass and Wastes, Washington,Biomass Yield Energy Content Upwelling

  5. A survey of state clean energy fund support for biomass

    E-Print Network [OSTI]

    Fitzgerald, Garrett; Bolinger, Mark; Wiser, Ryan

    2004-01-01

    with the planting of biomass energy crops Pike Countya regional agricultural biomass energy workshop and relatedrenewable energy,” biomass energy sources are included in

  6. The role of biomass in California's hydrogen economy

    E-Print Network [OSTI]

    Parker, Nathan C; Ogden, Joan; Fan, Yueyue

    2009-01-01

    context of the full biomass energy system. Clearly, biomassa Business from Biomass in Energy, Environment, Chemicals,by far the lowest biomass gasi?cation energy conversion ef?

  7. Tracking Hemicellulose and Lignin Deconstruction During Hydrothermal Pretreatment of Biomass

    E-Print Network [OSTI]

    McKenzie, Heather Lorelei

    2012-01-01

    less recalcitrant biomass feedstocks and improved enzymes.of less recalcitrant biomass feedstocks and improvedpotential of improved biomass feedstocks and enzymes for the

  8. SYNTHESIS GAS UTILIZATION AND PRODUCTION IN A BIOMASS LIQUEFACTION FACILITY

    E-Print Network [OSTI]

    Figueroa, C.

    2012-01-01

    on the Steam Gasification of Biomass," Department of EnergyCatalytic Steam Gasification of Biomass, 11 April 28, 1978.Report "A survey of Biomass Gasification," Department of

  9. Economic Analysis of a 3MW Biomass Gasification Power Plant

    E-Print Network [OSTI]

    Cattolica, Robert; Lin, Kathy

    2009-01-01

    Collaborative, Biomass gasification / power generationANALYSIS OF A 3MW BIOMASS GASIFICATION POWER PLANT R obert Cinvolved in the gasification of biomass to produce gas are

  10. High Tonnage Forest Biomass Production Systems from Southern...

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

    Forest Biomass Production Systems from Southern Pine Energy Plantations Feedstock Supply and Logistics: Biomass as a Commodity Feedstock Supply and Logistics:Biomass as a Commodity...

  11. Suite of Cellulase Enzyme Technologies for Biomass Conversion...

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

    Biomass and Biofuels Biomass and Biofuels Find More Like This Return to Search Suite of Cellulase Enzyme Technologies for Biomass Conversion National Renewable Energy Laboratory...

  12. LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERING UNIT (PEU)

    E-Print Network [OSTI]

    Figueroa, Carlos

    2012-01-01

    0092 UC-61 ORNIA LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESSLBL~l0092 LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESSof Energy LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS

  13. New process speeds conversion of biomass to fuels

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

    Conversion of Biomass to Fuels New process speeds conversion of biomass to fuels Scientists made a major step forward recently towards transforming biomass-derived molecules into...

  14. MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE

    E-Print Network [OSTI]

    Haven, Kendall F.

    2011-01-01

    Design Parameters Marine Biomass Production Sea Farmof Various Types of Biomass . Biomethanation Parameters.Proceedings, Fuels from Biomass Symposium. University of

  15. The role of biomass in California's hydrogen economy

    E-Print Network [OSTI]

    Parker, Nathan C; Ogden, Joan; Fan, Yueyue

    2009-01-01

    Making a Business from Biomass in Energy, Environment,2004. An assessment of biomass resources in California.methanol and hydrogen from biomass. Journal of Power Sources

  16. Methods for producing and using densified biomass products containing...

    Office of Scientific and Technical Information (OSTI)

    producing and using densified biomass products containing pretreated biomass fibers Citation Details In-Document Search Title: Methods for producing and using densified biomass...

  17. A Multisensor satellite-based assessment of biomass burning aerosol radiative impact over Amazonia

    E-Print Network [OSTI]

    Christopher, Sundar A.

    ]. While most of the biomass burning (BB) activities occur in Africa, South America is responsible [Christopher et al., 2000] by scattering and absorbing solar radiation. Since biomass burning has a strong projections. Robust observational constraints on the response of a climate model [Stott and Kettleborough

  18. Emissions tradeoffs associated with cofiring forest biomass with coal: A case study in Colorado, USA

    E-Print Network [OSTI]

    Fried, Jeremy S.

    Emissions tradeoffs associated with cofiring forest biomass with coal: A case study in Colorado 59807, USA h i g h l i g h t s Case study using audited fuel consumption and emissions data from a coal mine and power plant. Model emissions tradeoffs of cofiring forest biomass with coal up to 20% by heat

  19. High-biomass sorghums for biomass biofuel production 

    E-Print Network [OSTI]

    Packer, Daniel

    2011-05-09

    photoperiod-sensitive (PS) hybrids within the Ma1/Ma5/Ma6 hybrid production system. High-biomass sorghums are PS and the Ma1/Ma5/Ma6 hybrid production system produces PS hybrids with PI parents by manipulating alleles at the Ma1, Ma5 and Ma6 sorghum maturity...

  20. Addressing an Uncertain Future Using Scenario Analysis

    SciTech Connect (OSTI)

    Siddiqui, Afzal S.; Marnay, Chris

    2006-12-15

    The Office of Energy Efficiency and Renewable Energy (EERE) has had a longstanding goal of introducing uncertainty into the analysis it routinely conducts in compliance with the Government Performance and Results Act (GPRA) and for strategic management purposes. The need to introduce some treatment of uncertainty arises both because it would be good general management practice, and because intuitively many of the technologies under development by EERE have a considerable advantage in an uncertain world. For example, an expected kWh output from a wind generator in a future year, which is not exposed to volatile and unpredictable fuel prices, should be truly worth more than an equivalent kWh from an alternative fossil fuel fired technology. Indeed, analysts have attempted to measure this value by comparing the prices observed in fixed-price natural gas contracts compared to ones in which buyers are exposed to market prices (see Bolinger, Wiser, and Golove and (2004)). In addition to the routine reasons for exploring uncertainty given above, the history of energy markets appears to have exhibited infrequent, but troubling, regime shifts, i.e., historic turning points at which the center of gravity or fundamental nature of the system appears to have abruptly shifted. Figure 1 below shows an estimate of how the history of natural gas fired generating costs has evolved over the last three decades. The costs shown incorporate both the well-head gas price and an estimate of how improving generation technology has gradually tended to lower costs. The purpose of this paper is to explore scenario analysis as a method for introducing uncertainty into EERE's forecasting in a manner consistent with the preceding observation. The two questions are how could it be done, and what is its academic basis, if any. Despite the interest in uncertainty methods, applying them poses some major hurdles because of the heavy reliance of EERE on forecasting tools that are deterministic in nature, such as the Energy Information Administration's (EIA's) National Energy Modeling System (NEMS). NEMS is the source of the influential Annual Energy Outlook whose business-as-usual (BAU) case, the Reference Case, forms the baseline for most of the U.S. energy policy discussion. NEMS is an optimizing model because: 1. it iterates to an equilibrium among modules representing the supply, demand, and energy conversion subsectors; and 2. several subsectoral models are individually solved using linear programs (LP). Consequently, it is deeply rooted in the recent past and any effort to simulate the consequences of a major regime shift as depicted in Figure 1 must come by applying an exogenously specified scenario. And, more generally, simulating futures that lie outside of our recent historic experience, even if they do not include regime switches suggest some form of scenario approach. At the same time, the statistical validity of scenarios that deviate significantly outside the ranges of historic inputs should be questioned.

  1. Biomass 2013: Welcome | Department of Energy

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

    Biomass 2013: Welcome Biomass 2013: Welcome Welcome and Introductory Keynotes Valerie Reed, Acting Director, BETO, U.S. Department of Energy b13reedday1-welcome.pdf More...

  2. Biomass Webinar Text Version | Department of Energy

    Office of Environmental Management (EM)

    Text Version Biomass Webinar Text Version Dowload the text version of the audio from the DOE Office of Indian Energy webinar on biomass. DOE Office of Indian Energy Foundational...

  3. Biomass Feedstock Composition and Property Database

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

    The Office of Energy Efficiency and Renewable Energy's Biomass Program works with industry, academia and national laboratory partners on a balanced portfolio of research in biomass feedstocks and conversion technologies. Through research, development, and demonstration efforts geared at the development of integrated biorefineries, the Biomass Program is helping transform the nation's renewable and abundant biomass resources into cost competitive, high performance biofuels, bioproducts, and biopower.(From the Biomass Program's home page at http://www1.eere.energy.gov/biomass/) The Biomass Feedstock Composition and Property Database allows the user to choose from more than 150 types of biomass samples. The specialized interface then guides the user through choices within the sample (such as "Ash" as a choice in the "Hardwood" sample and displays tables based on choice of composition properties, structure properties, elemental properties, extractive properties, etc.

  4. Conversion of Waste Biomass into Useful Products 

    E-Print Network [OSTI]

    Holtzapple, M.

    1998-01-01

    Waste biomass includes municipal solid waste (MSW), municipal sewage sludge (SS), industrial biosludge, manure, and agricultural residues. When treated with lime, biomass is highly digestible by a mixed culture of acid-forming microorganisms. Lime...

  5. Biomass Oil Analysis: Research Needs and Recommendations

    SciTech Connect (OSTI)

    2004-06-01

    Report analyzing the use of biomass oils to help meet Office of the Biomass Program goals of establishing a commercial biorefinery by 2010 and commercilizing at least four biobased products.

  6. Biomass Boiler | OpenEI Community

    Open Energy Info (EERE)

    Biomass Boiler Home Wayne31jan's picture Submitted by Wayne31jan(150) Contributor 24 June, 2015 - 07:08 Biomass Boiler Market is Projected to Reach USD 8,907.0 Million by 2022...

  7. Treatment of biomass to obtain ethanol

    DOE Patents [OSTI]

    Dunson, Jr., James B. (Newark, DE); Elander, Richard T. (Evergreen, CO); Tucker, III, Melvin P. (Lakewood, CO); Hennessey, Susan Marie (Avondale, PA)

    2011-08-16

    Ethanol was produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

  8. Forest Biomass Supply for BioForest Biomass Supply for Bio--productionproduction in the Southeastern United Statesin the Southeastern United States

    E-Print Network [OSTI]

    Gray, Matthew

    Forest Biomass Supply for BioForest Biomass Supply for BioBio--production and biomass utilizationsproduction and biomass utilizations Industrial sector: for heat and steam Utility sector: for electricity Forest biomass: Agricultural biomass: Transportation sector: for biofuels

  9. ECONOMIC EVALUATION OF CO2 SEQUESTRATION TECHNOLOGIES TASK 4, BIOMASS GASIFICATION-BASED PROCESSING

    SciTech Connect (OSTI)

    Martha L. Rollins; Les Reardon; David Nichols; Patrick Lee; Millicent Moore; Mike Crim; Robert Luttrell; Evan Hughes

    2002-04-01

    Biomass derived energy currently accounts for about 3 quads of total primary energy use in the United States. Of this amount, about 0.8 quads are used for power generation. Several biomass energy production technologies exist today which contribute to this energy mix. Biomass combustion technologies have been the dominant source of biomass energy production, both historically and during the past two decades of expansion of modern biomass energy in the U. S. and Europe. As a research and development activity, biomass gasification has usually been the major emphasis as a method of more efficiently utilizing the energy potential of biomass, particularly wood. Numerous biomass gasification technologies exist today in various stages of development. Some are simple systems, while others employ a high degree of integration for maximum energy utilization. The purpose of this study is to conduct a technical and economic comparison of up to three biomass gasification technologies, including the carbon dioxide emissions reduction potential of each. To accomplish this, a literature search was first conducted to determine which technologies were most promising based on a specific set of criteria. During this reporting period, the technical and economic performances of the selected processes were evaluated using computer models and available literature. The results of these evaluations are summarized in this report.

  10. ECONOMIC EVALUATION OF CO2 SEQUESTRATION TECHNOLOGIES TASK 4, BIOMASS GASIFICATION-BASED PROCESSING

    SciTech Connect (OSTI)

    Martha L. Rollins; Les Reardon; David Nichols; Patrick Lee; Millicent Moore; Mike Crim; Robert Luttrell; Evan Hughes

    2002-06-01

    Biomass derived energy currently accounts for about 3 quads of total primary energy use in the United States. Of this amount, about 0.8 quads are used for power generation. Several biomass energy production technologies exist today which contribute to this energy mix. Biomass combustion technologies have been the dominant source of biomass energy production, both historically and during the past two decades of expansion of modern biomass energy in the U. S. and Europe. As a research and development activity, biomass gasification has usually been the major emphasis as a method of more efficiently utilizing the energy potential of biomass, particularly wood. Numerous biomass gasification technologies exist today in various stages of development. Some are simple systems, while others employ a high degree of integration for maximum energy utilization. The purpose of this study is to conduct a technical and economic comparison of up to three biomass gasification technologies, including the carbon dioxide emissions reduction potential of each. To accomplish this, a literature search was first conducted to determine which technologies were most promising based on a specific set of criteria. The technical and economic performances of the selected processes were evaluated using computer models and available literature. Using these results, the carbon sequestration potential of the three technologies was then evaluated. The results of these evaluations are given in this final report.

  11. Agricultural Biomass and Landfill Diversion Incentive (Texas...

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

    and Landfill Diversion Incentive (Texas) Agricultural Biomass and Landfill Diversion Incentive (Texas) < Back Eligibility Agricultural Commercial Construction Fuel Distributor...

  12. Dairy Biomass as a Renewable Fuel Source 

    E-Print Network [OSTI]

    Mukhtar, Saqib; Goodrich, Barry; Engler, Cady; Capareda, Sergio

    2008-03-19

    biomass. This publication explains the properties of dairy manure that could make it an excellent source of fuel....

  13. Biomass Catalyst Characterization Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01

    This fact sheet provides information about Biomass Catalyst Characterization Laboratory (BCCL) capabilities and applications at NREL's National Bioenergy Center.

  14. Biomass Compositional Analysis Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01

    This fact sheet provides information about Biomass Compositional Analysis Laboratory (BCAL) capabilities and applications at NREL's National Bioenergy Center.

  15. Biomass Renewable Energy Opportunities and Strategies | Department...

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

    strategic energy development forums, this Tribal Leader Forum will focus on biomass development opportunities, technology updates, resource assessment, the unique...

  16. Biomass Basics: The Facts About Bioenergy

    SciTech Connect (OSTI)

    2015-04-01

    Biomass Basics: The Facts About Bioenergy. This document provides general information about bioenergy and its creation and potential uses.

  17. Ris Energy Report 5 Biomass biomass is one of few non-fluctuating renewable energy

    E-Print Network [OSTI]

    : combustion and thermal gasification. Thermal conversion Combustion and co-combustion biomass conversionRisø Energy Report 5 Biomass 6.2 biomass is one of few non-fluctuating renewable energy resources- tem. Alongside stored hydro and geothermal, this sets biomass apart from most other renewables

  18. A Simple Biomass-Based Length-Cohort Analysis for Estimating Biomass and Fishing Mortality

    E-Print Network [OSTI]

    A Simple Biomass-Based Length-Cohort Analysis for Estimating Biomass and Fishing Mortality CHANG IK, Washington 98115, USA Abstract.--A biomass-based length-cohort analysis (LCA) was examined for its performance in estimating total stock biomass and fishing mortality (F) for a population in equilibrium. We

  19. Conference for Biomass and Energy, Copenhagen, 1996 published by Elsevier BIOMASS ENERGY PRODUCTION: THE GLOBAL POTENTIAL

    E-Print Network [OSTI]

    Keeling, Stephen L.

    9th Conference for Biomass and Energy, Copenhagen, 1996 ­ published by Elsevier 1 BIOMASS ENERGY disturbance of the natural global carbon cycle. The "carbon-neutral" renewable energy carrier biomass seems of biomass for energy purposes. The CEBM comprises a biospheric part being based on the "Osnabrück Biosphere

  20. Biomass Program Recovery Act Factsheet

    SciTech Connect (OSTI)

    2010-03-01

    The Biomass Program has awarded about $718 million in American Recovery and Reinvestment Act (Recovery Act) funds. The projects the Program is supporting are intended to: Accelerate advanced biofuels research, development, and demonstration; Speed the deployment and commercialization of advanced biofuels and bioproducts; Further the U.S. bioindustry through market transformation and creating or saving a range of jobs.

  1. Biomass Program Partners Fact Sheet

    SciTech Connect (OSTI)

    None

    2009-10-27

    Meeting ambitious national targets for biofuels requires a radically accelerated level of technology research and infrastructure development. To expedite progress, the U.S. Department of Energy’s Biomass Program is forging collaborative partnerships with industry, academia, state governments, and diverse stakeholder groups.

  2. Biomass energies: resources, links, constraints

    SciTech Connect (OSTI)

    Smil, V.

    1983-01-01

    This book presents information on the following topics: radiation and photosynthesis; primary production and biomass; resources; wood for energy; silviculture; requirements and effects; crop residues; residues for energy conversion; sugar crops and grain; cassava; fuel crops; aquatic plants; freshwater plants; ocean algae; animal wastes; Chinese biogas generation; and ecodisasters.

  3. Temperature-dependence of biomass accumulation rates during secondary succession

    E-Print Network [OSTI]

    Gillooly, Jamie

    on the biochemical kinetics of photosynthesis in chloroplasts. In addition, the rate of biomass accumulation one example of how emergent, ecosystem-level rate processes can be predicted based on the kinetics of uncertainty in terrestrial ecosystem models (e.g. Schimel et al. 2001; Houghton 2003, 2005). Additionally

  4. 4, 51355200, 2004 A review of biomass

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 4, 5135­5200, 2004 A review of biomass burning emissions, part II J. S. Reid et al. Title Page and Physics Discussions A review of biomass burning emissions, part II: Intensive physical properties of biomass burning particles J. S. Reid 1 , R. Koppmann 2 , T. F. Eck 3 , and D. P. Eleuterio 4 1 Marine

  5. Fermentable sugars by chemical hydrolysis of biomass

    E-Print Network [OSTI]

    Raines, Ronald T.

    Fermentable sugars by chemical hydrolysis of biomass Joseph B. Binder and Ronald T. Raines1 19, 2009) Abundant plant biomass has the potential to become a sustainable source of fuels of biomass into monosaccharides. Add- ing water gradually to a chloride ionic liquid-containing catalytic

  6. Also inside this issue: Bioengineering Better Biomass

    E-Print Network [OSTI]

    Also inside this issue: Bioengineering Better Biomass DOE JGI/EMSL Collaborative Science Projects and degrade carbon. This is an image of the Mn(II)-oxidizing fungus Stilbella aciculosa ­ the fungal biomass Better Biomass Feedstock Science Highlights 15 Clouds up Close Improving Catalysts Pore Challenge

  7. 5, 1045510516, 2005 A review of biomass

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 5, 10455­10516, 2005 A review of biomass burning emissions, part I R. Koppmann et al. Title and Physics Discussions A review of biomass burning emissions, part I: gaseous emissions of carbon monoxide A review of biomass burning emissions, part I R. Koppmann et al. Title Page Abstract Introduction

  8. 4, 707745, 2007 Proxies of biomass

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BGD 4, 707­745, 2007 Proxies of biomass for primary production Y. Huot et al. Title Page Abstract the best index of phytoplankton biomass for primary productivity studies? Y. Huot 1,2 , M. Babin 1,2 , F of biomass for primary production Y. Huot et al. Title Page Abstract Introduction Conclusions References

  9. 4, 52015260, 2004 A review of biomass

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 4, 5201­5260, 2004 A review of biomass burning emissions part III J. S. Reid et al. Title Page and Physics Discussions A review of biomass burning emissions part III: intensive optical properties of biomass burning particles J. S. Reid1 , T. F. Eck2 , S. A. Christopher3 , R. Koppmann4 , O. Dubovik3 , D

  10. Hydrogen Production Cost Estimate Using Biomass Gasification

    E-Print Network [OSTI]

    Hydrogen Production Cost Estimate Using Biomass Gasification National Renewable Energy Laboratory Panel, Hydrogen Production Cost Estimate Using Biomass Gasification To: Mr. Mark Ruth, NREL, DOE dollars. Costs for a pioneer plant [a 1st plant with a capacity of 500 dry ton per day (dtpd) biomass

  11. Thermodynamics of Energy Production from Biomass

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    Thermodynamics of Energy Production from Biomass Tad W. Patzek 1 and David Pimentel 2 1 Department #12;3 Biomass from Tropical Tree Plantations 14 3.1 Scope of the Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.2 Environmental Impacts of Industrial Biomass Production . . . . . . . . . . . . . . . 16 3

  12. Energie-Cits 2001 BIOMASS -WOOD

    E-Print Network [OSTI]

    Energie-Cités 2001 BIOMASS - WOOD Gasification / Cogeneration ARMAGH United Kingdom Gasification is transferring the combustible matters in organic waste or biomass into gas and pure char by burning the fuel via it allows biomass in small-scaled engines and co-generation units ­ which with conventional technologies

  13. Biomass Gasification at The Evergreen State College

    E-Print Network [OSTI]

    Biomass Gasification at The Evergreen State College Written by Students of the Winter 2011 Program "Applied Research: Biomass, Energy, and Environmental Justice" At The Evergreen State College, Olympia://blogs.evergreen.edu/appliedresearch/ #12; i Table of Contents Chapter 1: Introduction to Biomass at the Evergreen State College by Dani

  14. Eulachon (Thaleichthys pacificus) Spawning Stock Biomass (SSB)

    E-Print Network [OSTI]

    Eulachon (Thaleichthys pacificus) Spawning Stock Biomass (SSB) for the Cowlitz River, 2014; in particular the Cowlitz River #12;Technique: Spawning Stock Biomass (SSB): Calculation of SSB for eulachon in the Cowlitz River was accomplished via the following equation: B = P/(F*R) Eq. 1 where: B = Biomass: total

  15. Biomass for Bioenergy: an overview of

    E-Print Network [OSTI]

    Pennycook, Steve

    Biomass for Bioenergy: an overview of research at ORNL Environmental Science Division Climate. Kline (presenter) Virginia Dale, Laurence Eaton, Matt Langholtz, and others, ORNL #12;Biomass&TChemical and molecular science Plasma and fusion energy science Biomass #12;Lighter weight vehicles Bioenergy research

  16. Biomass from Logging Residue and Mill Residue

    E-Print Network [OSTI]

    Biomass from Logging Residue and Mill Residue in East Texas, 2008 by Curtis L. VanderSchaaf, Forest Resource Analyst October 2009 #12;N Introduction The abundance of woody biomass from East Texas forests. This report represents the most current data on the availability of woody biomass in the form of logging

  17. The role of biomass in California's hydrogen economy

    E-Print Network [OSTI]

    Parker, Nathan C; Ogden, Joan; Fan, Yueyue

    2009-01-01

    hydrogen from dry biomass feedstocks (i.e. straws, stovers,be produced from the wet biomass feedstocks (manures, urban

  18. 2011 Biomass Program Platform Peer Review: Integrated Biorefineries...

    Office of Environmental Management (EM)

    2011 Biomass Program Platform Peer Review: Integrated Biorefineries 2011 Biomass Program Platform Peer Review: Integrated Biorefineries "This document summarizes the...

  19. Transport Test Problems for Radiation Detection Scenarios

    SciTech Connect (OSTI)

    Shaver, Mark W.; Miller, Erin A.; Wittman, Richard S.; McDonald, Benjamin S.

    2012-09-30

    This is the final report and deliverable for the project. It is a list of the details of the test cases for radiation detection scenarios.

  20. CALLA ENERGY BIOMASS COFIRING PROJECT

    SciTech Connect (OSTI)

    Unknown

    2002-12-31

    The Calla Energy Biomass Project, to be located in Estill County, Kentucky is to be conducted in two phases. The objective of Phase I is to evaluate the technical and economic feasibility of cofiring biomass-based gasification fuel-gas in a power generation boiler. Waste coal fines are to be evaluated as the cofired fuel. The project is based on the use of commercially available technology for feeding and gas cleanup that would be suitable for deployment in municipal, large industrial and utility applications. Define a combustion system for the biomass gasification-based fuel-gas capable of stable, low-NOx combustion over the full range of gaseous fuel mixtures, with low carbon monoxide emissions and turndown capabilities suitable for large-scale power generation applications. The objective for Phase II is to design, install and demonstrate the combined gasification and combustion system in a large-scale, long-term cofiring operation to promote acceptance and utilization of indirect biomass cofiring technology for large-scale power generation applications. GTI received supplemental authorization A002 from DOE for additional work to be performed under Phase I that will further extend the performance period until the end of February 2003. The additional scope of work is for GTI to develop the gasification characteristics of selected feedstock for the project. To conduct this work, GTI assembles an existing ''mini-bench'' unit to perform the gasification tests. The results of the test will be used to confirm or if necessary update the process design completed in Phase Task 1. During this Performance Period work efforts focused on conducting tests of biomass feedstock samples on the 2 inch mini-bench gasifier.

  1. BIOMASS FOR HYDROGEN AND OTHER TRANSPORT FUELS -POTENTIALS, LIMITATIONS & COSTS

    E-Print Network [OSTI]

    BIOMASS FOR HYDROGEN AND OTHER TRANSPORT FUELS - POTENTIALS, LIMITATIONS & COSTS Senior scientist - "Towards Hydrogen Society" ·biomass resources - potentials, limits ·biomass carbon cycle ·biomass for hydrogen - as compared to other H2- sources and to other biomass paths #12;BIOMASS - THE CARBON CYCLE

  2. Monitoring and Control in Scenario-Based Requirements Analysis

    E-Print Network [OSTI]

    Bae, Doo-Hwan

    scenarios are detected #12;9 / 19 Implied Scenarios (3/3) Example Boiler Control System Implied Scenario of Boiler Control System Control pressure #12;10 / 19 Input-Output Implied Scenarios (1/4) Ability

  3. How should indicators be found for scenario monitoring ?

    E-Print Network [OSTI]

    He, Zheng, M. Eng. Massachusetts Institute of Technology

    2013-01-01

    Scenario planning is a widely used approach for developing long-term strategies. The typical scenario process involves developing scenarios, identifying strategies whose success is contingent on the scenario, and monitoring ...

  4. Carbonic Acid Pretreatment of Biomass

    SciTech Connect (OSTI)

    G. Peter van Walsum; Kemantha Jayawardhana; Damon Yourchisin; Robert McWilliams; Vanessa Castleberry

    2003-05-31

    This project sought to address six objectives, outlined below. The objectives were met through the completion of ten tasks. 1) Solidify the theoretical understanding of the binary CO2/H2O system at reaction temperatures and pressures. The thermodynamics of pH prediction have been improved to include a more rigorous treatment of non-ideal gas phases. However it was found that experimental attempts to confirm theoretical pH predictions were still off by a factor of about 1.8 pH units. Arrhenius experiments were carried out and the activation energy for carbonic acid appears to be substantially similar to sulfuric acid. Titration experiments have not yet confirmed or quantified the buffering or acid suppression effects of carbonic acid on biomass. 2) Modify the carbonic acid pretreatment severity function to include the effect of endogenous acid formation and carbonate buffering, if necessary. It was found that the existing severity functions serve adequately to account for endogenous acid production and carbonate effects. 3) Quantify the production of soluble carbohydrates at different reaction conditions and severity. Results show that carbonic acid has little effect on increasing soluble carbohydrate concentrations for pretreated aspen wood, compared to pretreatment with water alone. This appears to be connected to the release of endogenous acids by the substrate. A less acidic substrate such as corn stover would derive benefit from the use of carbonic acid. 4) Quantify the production of microbial inhibitors at selected reaction conditions and severity. It was found that the release of inhibitors was correlated to reaction severity and that carbonic acid did not appear to increase or decrease inhibition compared to pretreatment with water alone. 5) Assess the reactivity to enzymatic hydrolysis of material pretreated at selected reaction conditions and severity. Enzymatic hydrolysis rates increased with severity, but no advantage was detected for the use of carbonic acid compared to water alone. 6) Determine optimal conditions for carbonic acid pretreatment of aspen wood. Optimal severities appeared to be in the mid range tested. ASPEN-Plus modeling and economic analysis of the process indicate that the process could be cost competitive with sulfuric acid if the concentration of solids in the pretreatment is maintained very high (~50%). Lower solids concentrations result in larger reactors that become expensive to construct for high pressure applications.

  5. CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN

    E-Print Network [OSTI]

    CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN FUELLED VEHICLES by Katherine Aminta Muncaster of Research Project: Can Hydrogen Win?: Exploring Scenarios for Hydrogen Fuelled Vehicles Report No.: 459 explored the conditions under which hydrogen might succeed in Canada's transportation sector in a carbon

  6. SCENARIO ANALYSES OF CALIFORNIA'S ELECTRICITY SYSTEM: PRELIMINARY

    E-Print Network [OSTI]

    Generation Sector ................................................. 23 Fuel Price Projections in the Scenario.D. Principal Author Michael R. Jaske, Ph.D. Scenario Project Manager Lorraine White IEPR Project Manager Sylvia.................................................................................................... 22 CHAPTER 3 - Natural Gas Market Clearing Price Implications of Reduced Consumption from the Power

  7. Proposed Scope and Schedule for Scenario and

    E-Print Network [OSTI]

    conservation and demand response development. Sensitivity S2 ­ Scenarios 1B and 2C w/Lower Natural Gas Prices on resource development of significantly lower natural gas prices. Sensitivity S3 ­ Scenarios 1B and 2C w and chapters. 2 #12;2014 Q4 Q1 2015 Q2 2015 Demand/Price Forecasts Updated Methodology for Quantification

  8. Tank waste remediation system operational scenario

    SciTech Connect (OSTI)

    Johnson, M.E.

    1995-05-01

    The Tank Waste Remediation System (TWRS) mission is to store, treat, and immobilize highly radioactive Hanford waste (current and future tank waste and the strontium and cesium capsules) in an environmentally sound, safe, and cost-effective manner (DOE 1993). This operational scenario is a description of the facilities that are necessary to remediate the Hanford Site tank wastes. The TWRS Program is developing technologies, conducting engineering analyses, and preparing for design and construction of facilities necessary to remediate the Hanford Site tank wastes. An Environmental Impact Statement (EIS) is being prepared to evaluate proposed actions of the TWRS. This operational scenario is only one of many plausible scenarios that would result from the completion of TWRS technology development, engineering analyses, design and construction activities and the TWRS EIS. This operational scenario will be updated as the development of the TWRS proceeds and will be used as a benchmark by which to evaluate alternative scenarios.

  9. Maintaining environmental quality while expanding biomass production: Sub-regional U.S. policy simulations

    SciTech Connect (OSTI)

    Egbendewe-Mondzozo, Aklesso; Swinton, S.; Izaurralde, Roberto C.; Manowitz, David H.; Zhang, Xuesong

    2013-03-01

    This paper evaluates environmental policy effects on ligno-cellulosic biomass production and environ- mental outcomes using an integrated bioeconomic optimization model. The environmental policy integrated climate (EPIC) model is used to simulate crop yields and environmental indicators in current and future potential bioenergy cropping systems based on weather, topographic and soil data. The crop yield and environmental outcome parameters from EPIC are combined with biomass transport costs and economic parameters in a representative farmer profit-maximizing mathematical optimization model. The model is used to predict the impact of alternative policies on biomass production and environmental outcomes. We find that without environmental policy, rising biomass prices initially trigger production of annual crop residues, resulting in increased greenhouse gas emissions, soil erosion, and nutrient losses to surface and ground water. At higher biomass prices, perennial bioenergy crops replace annual crop residues as biomass sources, resulting in lower environmental impacts. Simulations of three environmental policies namely a carbon price, a no-till area subsidy, and a fertilizer tax reveal that only the carbon price policy systematically mitigates environmental impacts. The fertilizer tax is ineffectual and too costly to farmers. The no-till subsidy is effective only at low biomass prices and is too costly to government.

  10. Russell Biomass | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, NewMichigan:Roxbury,Rush County, Indiana:Ruskin, Florida:Biomass

  11. Star Biomass | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing CapacityVectren) Jump to:SpillDavid,EnergybyBiomass Jump to: navigation,

  12. Biomass Program News Blast: September

    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 on Delicious Rank EERE: Alternative FuelsofProgram:Y-12Power, IncBio Centers Announcementand FuelBiomass

  13. Process Design and Economics for the Conversion of Lignocellulosic Biomass to Hydrocarbons: Dilute-Acid and Enzymatic Deconstruction of Biomass to Sugars and Catalytic Conversion of Sugars to Hydrocarbons

    SciTech Connect (OSTI)

    Davis, R.; Tao, L.; Scarlata, C.; Tan, E. C. D.; Ross, J.; Lukas, J.; Sexton, D.

    2015-03-01

    This report describes one potential conversion process to hydrocarbon products by way of catalytic conversion of lignocellulosic-derived hydrolysate. This model leverages expertise established over time in biomass deconstruction and process integration research at NREL, while adding in new technology areas for sugar purification and catalysis. The overarching process design converts biomass to die die diesel- and naphtha-range fuels using dilute-acid pretreatment, enzymatic saccharification, purifications, and catalytic conversion focused on deoxygenating and oligomerizing biomass hydrolysates.

  14. Engineered plant biomass feedstock particles

    DOE Patents [OSTI]

    Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

    2012-04-17

    A new class of plant biomass feedstock particles characterized by consistent piece size and shape uniformity, high skeletal surface area, and good flow properties. The particles of plant biomass material having fibers aligned in a grain are characterized by a length dimension (L) aligned substantially parallel to the grain and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. In particular, the L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers, the W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers, and the L.times.W dimensions define a pair of substantially parallel top and bottom surfaces. The L.times.W surfaces of particles with L/H dimension ratios of 4:1 or less are further elaborated by surface checking between longitudinally arrayed fibers. The length dimension L is preferably aligned within 30.degree. parallel to the grain, and more preferably within 10.degree. parallel to the grain. The plant biomass material is preferably selected from among wood, agricultural crop residues, plantation grasses, hemp, bagasse, and bamboo.

  15. Use of neural networks to correlate enzymatic hydrolysis with biomass properties 

    E-Print Network [OSTI]

    Narayan, Ramasubramanian

    2001-01-01

    A neural network was used to correlate enzymatic digestibility with the following biomass properties: lignin content, acetyl content, and crystallinity index (CrI). The neural network model was not able to improve a ...

  16. Formation of ozone and growth of aerosols in young smoke plumes from biomass burning

    E-Print Network [OSTI]

    Alvarado, Matthew James

    2008-01-01

    The combustion of biomass is a major source of atmospheric trace gases and aerosols. Regional and global-scale models of atmospheric chemistry and climate take estimates for these emissions and arbitrarily "mix" them into ...

  17. Security Analysis of Selected AMI Failure Scenarios Using Agent Based Game Theoretic Simulation

    SciTech Connect (OSTI)

    Abercrombie, Robert K; Schlicher, Bob G; Sheldon, Frederick T

    2014-01-01

    Information security analysis can be performed using game theory implemented in dynamic Agent Based Game Theoretic (ABGT) simulations. Such simulations can be verified with the results from game theory analysis and further used to explore larger scale, real world scenarios involving multiple attackers, defenders, and information assets. We concentrated our analysis on the Advanced Metering Infrastructure (AMI) functional domain which the National Electric Sector Cyber security Organization Resource (NESCOR) working group has currently documented 29 failure scenarios. The strategy for the game was developed by analyzing five electric sector representative failure scenarios contained in the AMI functional domain. From these five selected scenarios, we characterize them into three specific threat categories affecting confidentiality, integrity and availability (CIA). The analysis using our ABGT simulation demonstrates how to model the AMI functional domain using a set of rationalized game theoretic rules decomposed from the failure scenarios in terms of how those scenarios might impact the AMI network with respect to CIA.

  18. Low carbon and clean energy scenarios for India: Analysis of targets approach

    SciTech Connect (OSTI)

    Shukla, Priyadarshi R.; Chaturvedi, Vaibhav

    2012-12-01

    Low carbon energy technologies are gaining increasing importance in India for reducing emissions as well as diversifying its energy supply mix. The present paper presents and analyses a targeted approach for pushing solar, wind and nuclear technologies in the Indian energy market. Targets for these technologies have been constructed on the basis of Indian government documents, policy announcements and expert opinion. Different targets have been set for the reference scenario and the carbon price scenario. In the reference scenario it is found that in the long run all solar, wind and nuclear will achieve their targets without any subsidy push. In the short run however, nuclear and solar energy require significant subsidy push. Nuclear energy requires a much higher subsidy allocation as compared to solar because the targets assumed are also higher for nuclear energy. Under a carbon price scenario, the carbon price drives the penetration of these technologies significantly. Still subsidy is required especially in the short run when the carbon price is low. It is also found that pushing solar, wind and nuclear technologies might lead to decrease in share of CCS under the price scenario and biomass under both BAU and price scenario, which implies that one set of low carbon technologies is substituted by other set of low carbon technologies. Thus the objective of emission mitigation might not be achieved due to this substitution. Moreover sensitivity on nuclear energy cost was done to represent risk mitigation for this technology and it was found that higher cost can significantly decrease the share of this technology under both the BAU and carbon price scenario.

  19. Biomass Energy Data Book, 2011, Edition 4

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

    Wright, L.; Boundy, B.; Diegel, S. W.; Davis, S. C.

    The Biomass Energy Data Book is a statistical compendium prepared and published by Oak Ridge National Laboratory (ORNL) under contract with the Biomass Program in the Energy Efficiency and Renewable Energy (EERE) program of the Department of Energy (DOE). Designed for use as a convenient reference, the book represents an assembly and display of statistics and information that characterize the biomass industry, from the production of biomass feedstocks to their end use, including discussions on sustainability. This is the fourth edition of the Biomass Energy Data Book which is only available online in electronic format. There are five main sections to this book. The first section is an introduction which provides an overview of biomass resources and consumption. Following the introduction to biomass, is a section on biofuels which covers ethanol, biodiesel and bio-oil. The biopower section focuses on the use of biomass for electrical power generation and heating. The fourth section is on the developing area of biorefineries, and the fifth section covers feedstocks that are produced and used in the biomass industry. The sources used represent the latest available data. There are also four appendices which include frequently needed conversion factors, a table of selected biomass feedstock characteristics, and discussions on sustainability.

  20. Biomass Energy Data Book: Edition 4

    SciTech Connect (OSTI)

    Boundy, Robert Gary; Diegel, Susan W; Wright, Lynn L; Davis, Stacy Cagle

    2011-12-01

    The Biomass Energy Data Book is a statistical compendium prepared and published by Oak Ridge National Laboratory (ORNL) under contract with the Biomass Program in the Energy Efficiency and Renewable Energy (EERE) program of the Department of Energy (DOE). Designed for use as a convenient reference, the book represents an assembly and display of statistics and information that characterize the biomass industry, from the production of biomass feedstocks to their end use, including discussions on sustainability. This is the fourth edition of the Biomass Energy Data Book which is only available online in electronic format. There are five main sections to this book. The first section is an introduction which provides an overview of biomass resources and consumption. Following the introduction to biomass, is a section on biofuels which covers ethanol, biodiesel and bio-oil. The biopower section focuses on the use of biomass for electrical power generation and heating. The fourth section is on the developing area of biorefineries, and the fifth section covers feedstocks that are produced and used in the biomass industry. The sources used represent the latest available data. There are also two appendices which include frequently needed conversion factors, a table of selected biomass feedstock characteristics, and discussions on sustainability. A glossary of terms and a list of acronyms are also included for the reader's convenience.

  1. Biomass Energy Data Book: Edition 1

    SciTech Connect (OSTI)

    Wright, Lynn L; Boundy, Robert Gary; Perlack, Robert D; Davis, Stacy Cagle; Saulsbury, Bo

    2006-09-01

    The Biomass Energy Data Book is a statistical compendium prepared and published by Oak Ridge National Laboratory (ORNL) under contract with the Office of the Biomass Program and the Office of Planning, Budget and Analysis in the Department of Energy's Energy Efficiency and Renewable Energy (EERE) program. Designed for use as a desk-top reference, the book represents an assembly and display of statistics and information that characterize the biomass industry, from the production of biomass feedstocks to their end use. This is the first edition of the Biomass Energy Data Book and is currently only available online in electronic format. There are five main sections to this book. The first section is an introduction which provides an overview of biomass resources and consumption. Following the introduction to biomass is a section on biofuels which covers ethanol, biodiesel and BioOil. The biopower section focuses on the use of biomass for electrical power generation and heating. The fourth section is about the developing area of biorefineries, and the fifth section covers feedstocks that are produced and used in the biomass industry. The sources used represent the latest available data. There are also three appendices which include measures of conversions, biomass characteristics and assumptions for selected tables and figures. A glossary of terms and a list of acronyms are also included for the reader's convenience.

  2. Biomass Energy Data Book: Edition 2

    SciTech Connect (OSTI)

    Wright, Lynn L; Boundy, Robert Gary; Badger, Philip C; Perlack, Robert D; Davis, Stacy Cagle

    2009-12-01

    The Biomass Energy Data Book is a statistical compendium prepared and published by Oak Ridge National Laboratory (ORNL) under contract with the Biomass Program in the Energy Efficiency and Renewable Energy (EERE) program of the Department of Energy (DOE). Designed for use as a convenient reference, the book represents an assembly and display of statistics and information that characterize the biomass industry, from the production of biomass feedstocks to their end use, including discussions on sustainability. This is the second edition of the Biomass Energy Data Book which is only available online in electronic format. There are five main sections to this book. The first section is an introduction which provides an overview of biomass resources and consumption. Following the introduction to biomass, is a section on biofuels which covers ethanol, biodiesel and bio-oil. The biopower section focuses on the use of biomass for electrical power generation and heating. The fourth section is on the developing area of biorefineries, and the fifth section covers feedstocks that are produced and used in the biomass industry. The sources used represent the latest available data. There are also four appendices which include frequently needed conversion factors, a table of selected biomass feedstock characteristics, assumptions for selected tables and figures, and discussions on sustainability. A glossary of terms and a list of acronyms are also included for the reader's convenience.

  3. Techno Economic Analysis of Hydrogen Production by gasification of biomass

    SciTech Connect (OSTI)

    Francis Lau

    2002-12-01

    Biomass represents a large potential feedstock resource for environmentally clean processes that produce power or chemicals. It lends itself to both biological and thermal conversion processes and both options are currently being explored. Hydrogen can be produced in a variety of ways. The majority of the hydrogen produced in this country is produced through natural gas reforming and is used as chemical feedstock in refinery operations. In this report we will examine the production of hydrogen by gasification of biomass. Biomass is defined as organic matter that is available on a renewable basis through natural processes or as a by-product of processes that use renewable resources. The majority of biomass is used in combustion processes, in mills that use the renewable resources, to produce electricity for end-use product generation. This report will explore the use of hydrogen as a fuel derived from gasification of three candidate biomass feedstocks: bagasse, switchgrass, and a nutshell mix that consists of 40% almond nutshell, 40% almond prunings, and 20% walnut shell. In this report, an assessment of the technical and economic potential of producing hydrogen from biomass gasification is analyzed. The resource base was assessed to determine a process scale from feedstock costs and availability. Solids handling systems were researched. A GTI proprietary gasifier model was used in combination with a Hysys(reg. sign) design and simulation program to determine the amount of hydrogen that can be produced from each candidate biomass feed. Cost estimations were developed and government programs and incentives were analyzed. Finally, the barriers to the production and commercialization of hydrogen from biomass were determined. The end-use of the hydrogen produced from this system is small PEM fuel cells for automobiles. Pyrolysis of biomass was also considered. Pyrolysis is a reaction in which biomass or coal is partially vaporized by heating. Gasification is a more general term, and includes heating as well as the injection of other ''ingredients'' such as oxygen and water. Pyrolysis alone is a useful first step in creating vapors from coal or biomass that can then be processed in subsequent steps to make liquid fuels. Such products are not the objective of this project. Therefore pyrolysis was not included in the process design or in the economic analysis. High-pressure, fluidized bed gasification is best known to GTI through 30 years of experience. Entrained flow, in contrast to fluidized bed, is a gasification technology applied at much larger unit sizes than employed here. Coal gasification and residual oil gasifiers in refineries are the places where such designs have found application, at sizes on the order of 5 to 10 times larger than what has been determined for this study. Atmospheric pressure gasification is also not discussed. Atmospheric gasification has been the choice of all power system pilot plants built for biomass to date, except for the Varnamo plant in Sweden, which used the Ahlstrom (now Foster Wheeler) pressurized gasifier. However, for fuel production, the disadvantage of the large volumetric flows at low pressure leads to the pressurized gasifier being more economical.

  4. Lyonsdale Biomass LLC Biomass Facility | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona:Oregon:Lowell Point,Massachusetts:Kansas: EnergyLLC Biomass

  5. Emissions of trace gases and aerosols during the open combustion of biomass in the laboratory

    E-Print Network [OSTI]

    McMeeking, Gavin R.

    2009-01-01

    mercury emissions during biomass combustion: Controllingin biomass smoke from residential wood combustion: Emissions1997), Emissions from smoldering combustion of biomass

  6. Understanding Substrate Features Influenced by Pretreatments that Limit Biomass Deconstruction by Enzymes

    E-Print Network [OSTI]

    Gao, Xiadi

    2013-01-01

    Biomass feedstocks .Materials and Methods Biomass feedstocks Two kinds ofthe screening of biomass feedstocks. In this study, a one-

  7. Marine Ecosystem Dynamics and Biogeochemical Cycling in the Community Earth System Model [CESM1(BGC)]: Comparison of the 1990s with the 2090s under the RCP4.5 and RCP8.5 Scenarios

    E-Print Network [OSTI]

    Moore, J. Keith; Lindsay, Keith; Doney, Scott C; Long, Matthew C; Misumi, Kazuhiro

    2013-01-01

    2013: The Community Earth System Model: A Framework forcurrent system in an earth system model. Geophys. Res.global warming in an Earth System Model. Bio- geosciences,

  8. Variability of biomass chemical composition and rapid analysis using FT-NIR techniques

    SciTech Connect (OSTI)

    Liu, Lu [University of Tennessee, Knoxville (UTK); Ye, Philip [University of Tennessee, Knoxville (UTK); Womac, A.R. [University of Tennessee; Sokhansanj, Shahabaddine [ORNL

    2010-04-01

    A quick method for analyzing the chemical composition of renewable energy biomass feedstock was developed by using Fourier transform near-infrared (FT-NIR) spectroscopy coupled with multivariate analysis. The study presents the broad-based model hypothesis that a single FT-NIR predictive model can be developed to analyze multiple types of biomass feedstock. The two most important biomass feedstocks corn stover and switchgrass were evaluated for the variability in their concentrations of the following components: glucan, xylan, galactan, arabinan, mannan, lignin, and ash. A hypothesis test was developed based upon these two species. Both cross-validation and independent validation results showed that the broad-based model developed is promising for future chemical prediction of both biomass species; in addition, the results also showed the method's prediction potential for wheat straw.

  9. Strategic Positioning in Tactical Scenario Planning

    E-Print Network [OSTI]

    Whitacre, James M; Sarker, Ruhul; Bender, Axel; Baker, Stephen; 10.1145/1389095.1389293

    2009-01-01

    Capability planning problems are pervasive throughout many areas of human interest with prominent examples found in defense and security. Planning provides a unique context for optimization that has not been explored in great detail and involves a number of interesting challenges which are distinct from traditional optimization research. Planning problems demand solutions that can satisfy a number of competing objectives on multiple scales related to robustness, adaptiveness, risk, etc. The scenario method is a key approach for planning. Scenarios can be defined for long-term as well as short-term plans. This paper introduces computational scenario-based planning problems and proposes ways to accommodate strategic positioning within the tactical planning domain. We demonstrate the methodology in a resource planning problem that is solved with a multi-objective evolutionary algorithm. Our discussion and results highlight the fact that scenario-based planning is naturally framed within a multi-objective setting...

  10. Scenarios for Benefits Analysis of Energy Research, Development,Demonstration and Deployment

    SciTech Connect (OSTI)

    Gumerman, Etan; Marnay, Chris

    2005-09-07

    For at least the last decade, evaluation of the benefits of research, development, demonstration, and deployment (RD3) by the U.S. Department of Energy has been conducted using deterministic forecasts that unrealistically presume we can precisely foresee our future 10, 25,or even 50 years hence. This effort tries, in a modest way, to begin a process of recognition that the reality of our energy future is rather one rife with uncertainty. The National Energy Modeling System (NEMS) is used by the Department of Energy's Office of Energy Efficiency and Renewable Energy (EE) and Fossil Energy (FE) for their RD3 benefits evaluation. In order to begin scoping out the uncertainty in these deterministic forecasts, EE and FE designed two futures that differ significantly from the basic NEMS forecast. A High Fuel Price Scenario and a Carbon Cap Scenario were envisioned to forecast alternative futures and the associated benefits. Ernest Orlando Lawrence Berkeley National Laboratory (LBNL) implemented these scenarios into its version of NEMS,NEMS-LBNL, in late 2004, and the Energy Information Agency created six scenarios for FE in early 2005. The creation and implementation of the EE-FE scenarios are explained in this report. Both a Carbon Cap Scenario and a High Fuel Price Scenarios were implemented into the NEMS-LBNL. EIA subsequently modeled similar scenarios using NEMS. While the EIA and LBNL implementations were in some ways rather different, their forecasts do not significantly diverge. Compared to the Reference Scenario, the High Fuel Price Scenario reduces energy consumption by 4 percent in 2025, while in the EIA fuel price scenario (known as Scenario 4) reduction from its corresponding reference scenario (known as Scenario 0) in 2025 is marginal. Nonetheless, the 4 percent demand reduction does not lead to other cascading effects that would significantly differentiate the two scenarios. The LBNL and EIA carbon scenarios were mostly identical. The only major difference was that LBNL started working with the AEO 2004NEMS code and EIA was using AEO 2005 NEMS code. Unlike the High Price Scenario the Carbon Cap scenario gives a radically different forecast than the Reference Scenario. NEMS-LBNL proved that it can handle these alternative scenarios. However, results are price inelastic (for both oil and natural gas prices) within the price range evaluated. Perhaps even higher price paths would lead to a distinctly different forecast than the Reference Scenario. On the other hand, the Carbon Cap Scenario behaves more like an alternative future. The future in the Carbon Cap Scenario has higher electricity prices, reduced driving, more renewable capacity, and reduced energy consumption. The next step for this work is to evaluate the EE benefits under each of the three scenarios. Comparing those three sets of predicted benefits will indicate how much uncertainty is inherent within this sort of deterministic forecasting.

  11. Biomass Compositional Analysis Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-07-01

    At the Biomass Compositional Analysis Laboratory, NREL scientists have more than 20 years of experience supporting the biomass conversion industry. They develop, refine, and validate analytical methods to determine the chemical composition of biomass samples before, during, and after conversion processing. These high-quality compositional analysis data are used to determine feedstock compositions as well as mass balances and product yields from conversion processes.

  12. Estimates of US biomass energy consumption 1992

    SciTech Connect (OSTI)

    Not Available

    1994-05-06

    This report is the seventh in a series of publications developed by the Energy Information Administration (EIA) to quantify the biomass-derived primary energy used by the US economy. It presents estimates of 1991 and 1992 consumption. The objective of this report is to provide updated estimates of biomass energy consumption for use by Congress, Federal and State agencies, biomass producers and end-use sectors, and the public at large.

  13. Scenario Analysis Meeting | Department of Energy

    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 on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 -RobSSL INDepartment ofJuneScenario Analysis Meeting Scenario

  14. A Study of Universal Thermodynamics in Brane World Scenario

    E-Print Network [OSTI]

    Saugata Mitra; Subhajit Saha; Subenoy Chakraborty

    2015-03-25

    A study of Universal thermodynamics is done in the frame work of RSII brane model and DGP brane scenario. The Universe is chosen as FRW model bounded by apparent or event horizon. Assuming extended Hawking temperature on the horizon, the unified first law is examined for perfect fluid (with constant equation of state) and modified Chaplygin gas model. As a result there is a modification of Bekenstein entropy on the horizons. Further the validity of the generalized second law of thermodynamics and thermodynamical equilibrium are also investigated.

  15. Biomass power and state renewable energy policies under electric industry restructuring

    E-Print Network [OSTI]

    Porter, Kevin; Wiser, Ryan

    2000-01-01

    solar, geothermal, and biomass energy resources in Nevadamay make it difficult for biomass energy companies to accessmay be an opportunity for biomass energy crops and biomass

  16. An overview of alternative fossil fuel price and carbon regulation scenarios

    SciTech Connect (OSTI)

    Wiser, Ryan; Bolinger, Mark

    2004-10-01

    The benefits of the Department of Energy's research and development (R&D) efforts have historically been estimated under business-as-usual market and policy conditions. In recognition of the insurance value of R&D, however, the Office of Energy Efficiency and Renewable Energy (EERE) and the Office of Fossil Energy (FE) have been exploring options for evaluating the benefits of their R&D programs under an array of alternative futures. More specifically, an FE-EERE Scenarios Working Group (the Working Group) has proposed to EERE and FE staff the application of an initial set of three scenarios for use in the Working Group's upcoming analyses: (1) a Reference Case Scenario, (2) a High Fuel Price Scenario, which includes heightened natural gas and oil prices, and (3) a Carbon Cap-and-Trade Scenario. The immediate goal is to use these scenarios to conduct a pilot analysis of the benefits of EERE and FE R&D efforts. In this report, the two alternative scenarios being considered by EERE and FE staff--carbon cap-and-trade and high fuel prices--are compared to other scenarios used by energy analysts and utility planners. The report also briefly evaluates the past accuracy of fossil fuel price forecasts. We find that the natural gas prices through 2025 proposed in the FE-EERE Scenarios Working Group's High Fuel Price Scenario appear to be reasonable based on current natural gas prices and other externally generated gas price forecasts and scenarios. If anything, an even more extreme gas price scenario might be considered. The price escalation from 2025 to 2050 within the proposed High Fuel Price Scenario is harder to evaluate, primarily because few existing forecasts or scenarios extend beyond 2025, but, at first blush, it also appears reasonable. Similarly, we find that the oil prices originally proposed by the Working Group in the High Fuel Price Scenario appear to be reasonable, if not conservative, based on: (1) the current forward market for oil, (2) current oil prices, (3) externally generated oil price forecasts, and (4) the historical difficulty in accurately forecasting oil prices. Overall, a spread between the FE-EERE High Oil Price and Reference scenarios of well over $8/bbl is supported by the literature. We conclude that a wide range of carbon regulation scenarios are possible, especially within the time frame considered by EERE and FE (through 2050). The Working Group's Carbon Cap-and-Trade Scenario is found to be less aggressive than many Kyoto-style targets that have been analyzed, and similar in magnitude to the proposed Climate Stewardship Act. The proposed scenario is more aggressive than some other scenarios found in the literature, however, and ignores carbon banking and offsets and does not allow nuclear power to expand. We are therefore somewhat concerned that the stringency of the proposed carbon regulation scenario in the 2010 to 2025 period will lead to a particularly high estimated cost of carbon reduction. As described in more detail later, we encourage some flexibility in the Working Group's ultimate implementation of the Carbon Cap-and-Trade Scenario. We conclude by identifying additional scenarios that might be considered in future analyses, describing a concern with the proposed specification of the High Fuel Price Scenario, and highlighting the possible difficulty of implementing extreme scenarios with current energy modeling tools.

  17. UCSD Biomass to Power Economic Feasibility Study

    E-Print Network [OSTI]

    Cattolica, Robert

    2009-01-01

    Figure 1: West Biofuels Biomass Gasification to Power process will utilize  gasification technology provided by is  pioneering the gasification technology that has been 

  18. Transportation Energy Futures Series: Projected Biomass Utilization...

    Office of Scientific and Technical Information (OSTI)

    Transportation Energy Futures Series: Projected Biomass Utilization for Fuels and Power in a Mature Market Ruth, M.; Mai, T.; Newes, E.; Aden, A.; Warner, E.; Uriarte, C.; Inman,...

  19. Biomass Derivatives Competitive with Heating Oil Costs.

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

    Biomass Derivatives Competitive with Heating Oil Costs Transportation fuel Heat or electricity * Data are from literature, except heating oil is adjusted from 2011 winter average *...

  20. Biomass 2014: Additional Speaker Biographies | Department of...

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

    document outlines the biographies of the additional speakers for Biomass 2014, held July 29-July 30 in Washington, D.C. additionalspeakerbiographiesbiomass2014 More Documents &...

  1. EERC Center for Biomass Utilization 2006

    SciTech Connect (OSTI)

    Christopher J. Zygarlicke; John P. Hurley; Ted R. Aulich; Bruce C. Folkedahl; Joshua R. Strege; Nikhil Patel; Richard E. Shockey

    2009-05-27

    The Center for Biomass Utilization (CBU�®) 2006 project at the Energy & Environmental Research Center (EERC) consisted of three tasks related to applied fundamental research focused on converting biomass feedstocks to energy, liquid transportation fuels, and chemicals. Task 1, entitled Thermochemical Conversion of Biomass to Syngas and Chemical Feedstocks, involved three activities. Task 2, entitled Crop Oil Biorefinery Process Development, involved four activities. Task 3, entitled Management, Education, and Outreach, focused on overall project management and providing educational outreach related to biomass technologies through workshops and conferences.

  2. Biomass IBR Fact Sheet: Haldor Topsoe, Inc.

    Office of Energy Efficiency and Renewable Energy (EERE)

    Haldor Topsoe, Inc. will integrate the Carbona Gasification and the Haldor Topsoe TIGAS (Topsoe Integrated Gasoline Synthesis) proprietary processes to produce renewable gasoline from woody biomass.

  3. Biomass Indirect Liquefaction Strategy Workshop: Summary Report...

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

    Strategy Workshop: Summary Report Biomass Indirect Liquefaction Strategy Workshop: Summary Report This report is based on the proceedings of the U.S. DOE's Bioenergy Technologies...

  4. Characterization of Catalysts for Aftertreatment and Biomass...

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

    Catalysts for Aftertreatment and Biomass-derived Fuels: Success Stories from the High Temperature Materials Laboratory (HTML) User Program Characterization of Catalysts for...

  5. Biomass Support for the China Renewable Energy Law: International Biomass Energy Technology Review Report, January 2006

    SciTech Connect (OSTI)

    Not Available

    2006-10-01

    Subcontractor report giving an overview of the biomass power generation technologies used in China, the U.S., and Europe.

  6. NREL: Learning - Biomass Energy Basics

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12Working withPhoto of theSolar SponsorsBiomass

  7. A Look At Three Different Scenarios for Bulge Formation

    E-Print Network [OSTI]

    Rychard J. Bouwens; Laura Cayon; Joseph Silk

    1998-12-10

    In this paper, we present three qualitatively different scenarios for bulge formation: a secular evolution model in which bulges form after disks and undergo several central starbursts, a primordial collapse model in which bulges and disks form simultaneously, and an early bulge formation model in which bulges form prior to disks. We normalize our models to the local z=0 observations of de Jong & van der Kruit (1994) and Peletier & Balcells (1996) and make comparisons with high redshift observations. We consider model predictions relating directly to bulge-to-disk properties. As expected, smaller bulge-to-disk ratios and bluer bulge colors are predicted by the secular evolution model at all redshifts, although uncertainties in the data are currently too large to differentiate strongly between the models.

  8. Type Ia Supernova Scenarios and the Hubble Sequence

    E-Print Network [OSTI]

    P. Ruiz-Lapuente; A. Burkert; R. Canal

    1995-05-19

    The dependence of the Type Ia supernova (SN Ia) rate on galaxy type is examined for three currently proposed scenarios: merging of a Chandrasekhar--mass CO white dwarf (WD) with a CO WD companion, explosion of a sub--Chandrasekhar mass CO WD induced by accretion of material from a He star companion, and explosion of a sub--Chandrasekhar CO WD in a symbiotic system. The variation of the SNe Ia rate and explosion characteristics with time is derived, and its correlation with parent population age and galaxy redshift is discussed. Among current scenarios, CO + He star systems should be absent from E galaxies. Explosion of CO WDs in symbiotic systems could account for the SNe Ia rate in these galaxies. The same might be true for the CO + CO WD scenario, depending on the value of the common envelope parameter. A testable prediction of the sub--Chandrasekhar WD model is that the average brightness and kinetic energy of the SN Ia events should increase with redshift for a given Hubble type. Also for this scenario, going along the Hubble sequence from E to Sc galaxies SNe Ia events should be brighter on average and should show larger mean velocities of the ejecta. The observational correlations strongly suggest that the characteristics of the SNe Ia explosion are linked to parent population age. The scenario in which WDs with masses below the Chandrasekhar mass explode appears the most promising one to explain the observed variation of the SN Ia rate with galaxy type together with the luminosity--expansion velocity trend.

  9. Current Status and Future Scenarios of Residential Building Energy Consumption in China

    E-Print Network [OSTI]

    Zhou, Nan

    2010-01-01

    accounting for 79% of non-biomass energy consumption inreliance on biomass for rural energy consumption shows thereliance on biomass for rural energy consumption shows the

  10. Simulations and modeling of biomass gasification processes

    E-Print Network [OSTI]

    Tarud, Joan

    2005-01-01

    Available, low-cost, energy supplies are vital for the world's economy and stability. The current sources of energy harm our environment and are not renewable. Therefore, technology must accommodate new sustainable sources ...

  11. Persisting cold extremes under 21st-century warming scenarios

    SciTech Connect (OSTI)

    Kodra, Evan A [ORNL; Steinhaeuser, Karsten J K [ORNL; Ganguly, Auroop R [ORNL

    2011-01-01

    Analyses of climate model simulations and observations reveal that extreme cold events are likely to persist across each land-continent even under 21st-century warming scenarios. The grid-based intensity, duration and frequency of cold extreme events are calculated annually through three indices: the coldest annual consecutive three-day average of daily maximum temperature, the annual maximum of consecutive frost days, and the total number of frost days. Nine global climate models forced with a moderate greenhouse-gas emissions scenario compares the indices over 2091 2100 versus 1991 2000. The credibility of model-simulated cold extremes is evaluated through both bias scores relative to reanalysis data in the past and multi-model agreement in the future. The number of times the value of each annual index in 2091 2100 exceeds the decadal average of the corresponding index in 1991 2000 is counted. The results indicate that intensity and duration of grid-based cold extremes, when viewed as a global total, will often be as severe as current typical conditions in many regions, but the corresponding frequency does not show this persistence. While the models agree on the projected persistence of cold extremes in terms of global counts, regionally, inter-model variability and disparity in model performance tends to dominate. Our findings suggest that, despite a general warming trend, regional preparedness for extreme cold events cannot be compromised even towards the end of the century.

  12. Biomass plants face wood supply risks Report warns giant new biomass power plants will be hugely reliant on wood chip

    E-Print Network [OSTI]

    Biomass plants face wood supply risks Report warns giant new biomass power plants will be hugely's biomass energy sector could be undermined unless businesses move to resolve the supply chain issues-scale biomass plants will leave generators largely reliant on biomass from overseas such as wood chips, elephant

  13. The optimum substrate to biomass ratio to reduce net biomass yields and inert compounds in biological leachate treatment

    E-Print Network [OSTI]

    Bae, Jin-Woo

    The optimum substrate to biomass ratio to reduce net biomass yields and inert compounds that microorganisms must satisfy their maintenance energy requirements prior to synthesizing new biomass, a set on the excess biomass production. Decreasing the supply of substrate per unit biomass resulted in gradual

  14. Engineered plant biomass feedstock particles

    DOE Patents [OSTI]

    Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

    2011-10-18

    A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. At least 80% of the particles pass through a 1/4 inch screen having a 6.3 mm nominal sieve opening but are retained by a No. 10 screen having a 2 mm nominal sieve opening. The feedstock particles are manufactured from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.

  15. Engineered plant biomass feedstock particles

    DOE Patents [OSTI]

    Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

    2011-10-11

    A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. The feedstock particles are manufactured from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.

  16. Bamboo: An Overlooked Biomass Resource?

    SciTech Connect (OSTI)

    Scurlock, J.M.O.

    2000-02-01

    Bamboo is the common term applied to a broad group (1250 species) of large woody grasses, ranging from 10 cm to 40 m in height. Already in everyday use by about 2.5 billion people, mostly for fiber and food within Asia, bamboo may have potential as a bioenergy or fiber crop for niche markets, although some reports of its high productivity seem to be exaggerated. Literature on bamboo productivity is scarce, with most reports coming from various parts of Asia. There is little evidence overall that bamboo is significantly more productive than many other candidate bioenergy crops, but it shares a number of desirable fuel characteristics with certain other bioenergy feedstocks, such as low ash content and alkali index. Its heating value is lower than many woody biomass feedstocks but higher than most agricultural residues, grasses and straws. Although non-fuel applications of bamboo biomass may be actually more profitable than energy recovery, there may also be potential for co-productio n of bioenergy together with other bamboo processing. A significant drawback is the difficulty of selective breeding, given the lack of knowledge of flowering physiology. Further research is also required on propagation techniques, establishment and stand management, and mechanized harvesting needs to be developed.

  17. Toward Interactive Scenario Analysis and Exploration

    SciTech Connect (OSTI)

    Gayle, Thomas R.; Summers, Kenneth Lee; Jungels, John; Oppel III, Fred J.

    2015-01-01

    As Modeling and Simulation (M&S) tools have matured, their applicability and importance have increased across many national security challenges. In particular, they provide a way to test how something may behave without the need to do real world testing. However, current and future changes across several factors including capabilities, policy, and funding are driving a need for rapid response or evaluation in ways that many M&S tools cannot address. Issues around large data, computational requirements, delivery mechanisms, and analyst involvement already exist and pose significant challenges. Furthermore, rising expectations, rising input complexity, and increasing depth of analysis will only increase the difficulty of these challenges. In this study we examine whether innovations in M&S software coupled with advances in ''cloud'' computing and ''big-data'' methodologies can overcome many of these challenges. In particular, we propose a simple, horizontally-scalable distributed computing environment that could provide the foundation (i.e. ''cloud'') for next-generation M&S-based applications based on the notion of ''parallel multi-simulation''. In our context, the goal of parallel multi- simulation is to consider as many simultaneous paths of execution as possible. Therefore, with sufficient resources, the complexity is dominated by the cost of single scenario runs as opposed to the number of runs required. We show the feasibility of this architecture through a stable prototype implementation coupled with the Umbra Simulation Framework [6]. Finally, we highlight the utility through multiple novel analysis tools and by showing the performance improvement compared to existing tools.

  18. Formation Of Emergent Universe in Brane Scenario as a Consequence of Particle Creation

    E-Print Network [OSTI]

    Jibitesh Dutta; Sourav Haldar; Subenoy Chakraborty

    2015-05-07

    Here we formulate scenario of emergent universe from particle creation mechanism in spatially flat braneworld models. We consider an isotropic and homogeneous universe in Braneworld cosmology and universe is considered as a non-equilibrium thermodynamical system with dissipation due to particle creation mechanism. Assuming the particle creation rate as a function of the Hubble parameter , we formulate emergent scenario in RS2 and DGP models of Braneworld.

  19. Original article Biomass, litterfall and nutrient content in

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Biomass, litterfall and nutrient content in Castanea sativa coppice stands November 1995) Summary - Aboveground biomass and nutrient content, litterfall and nutrient return) and Catania (Italy). Best regression equations for the aboveground biomass were obtained by applying the allo

  20. MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE

    E-Print Network [OSTI]

    Haven, Kendall F.

    2011-01-01

    MARINE BIOMASS A marine energy farm is one of the fewTompkins, A. N. , 1978, "Energy from Marine Biomass Project-1978 "A Review of the Energy from Marine Biomass Program",

  1. High Biomass Low Export Regimes in the Southern Ocean

    E-Print Network [OSTI]

    Lam, Phoebe J.; Bishop, James K.B.

    2006-01-01

    of enhanced carbon biomass and export at 55 degrees S duringHigh Biomass Low Export Regimes in the Southern Ocean PhoebeSurface waters with high biomass levels and high proportion

  2. Tracking Hemicellulose and Lignin Deconstruction During Hydrothermal Pretreatment of Biomass

    E-Print Network [OSTI]

    McKenzie, Heather Lorelei

    2012-01-01

    2.3. Effects of low pH on biomass solids……………………………. ………………of effects of low pH on biomass……………………………. ….25 2.4. Low pHof low pH biomass reactions………………………. ……………..46

  3. Hydrogen from Biomass Catalytic Reforming of Pyrolysis Vapors

    E-Print Network [OSTI]

    kg H2/day) with catalyst attrition rates Biomass Feedstocks 6 CO2 +6 H2O C6 waste Issues: Biomass Availability and Costs Georgia Biomass Feedstock Supply 0 3 6 9 12 2000 2010 2020

  4. Biomass thermal conversion research at SERI

    SciTech Connect (OSTI)

    Milne, T. A.; Desrosiers, R. E.; Reed, T. B.

    1980-09-01

    SERI's involvement in the thermochemical conversion of biomass to fuels and chemicals is reviewed. The scope and activities of the Biomass Thermal Conversion and Exploratory Branch are reviewed. The current status and future plans for three tasks are presented: (1) Pyrolysis Mechanisms; (2) High Pressure O/sub 2/ Gasifier; and (3) Gasification Test Facility.

  5. Biomass Program 2007 Accomplishments - Report Introduction

    SciTech Connect (OSTI)

    none,

    2009-10-27

    The Office of Energy Efficiency and Renewable Energy's (EERE’s) Biomass Program works with industry, academia and its national laboratory partners on a balanced portfolio of research in biomass feedstocks and conversion technologies. This document provides the introduction to the 2007 Program Accomplishments Report.

  6. SEE ALSO SIDEBARS: RECOURCES SOLARRESOURCES BIOMASS & BIOFUELS

    E-Print Network [OSTI]

    Kammen, Daniel M.

    373 SEE ALSO SIDEBARS: RECOURCES · SOLARRESOURCES · BIOMASS & BIOFUELS Engineered and Artificial, and the production of liquid biofuels for transportation is growing rapidly. However, both traditional biomass energy and crop-based biofuels technologies have negative environmental and social impacts. The overall research

  7. Successful biomass (wood pellets ) implementation in

    E-Print Network [OSTI]

    Successful biomass (wood pellets ) implementation in Estonia Biomass Utilisation of Local of primary energy in Estonia ! Wood fuels production ! Pellet firing projects in Estonia ­ SIDA Demo East Production of wood fuels in Estonia in 2002 Regional Energy Centres in Estonia Wood pellets production

  8. Liquid Transportation Fuels from Coal and Biomass

    E-Print Network [OSTI]

    fuels from coal and biomass have potential to supply 2-3 MBPD of oil equivalent fuels with significantly and a carbon price, and on accelerated federal investment in essential technologies #12;BIOMASS SUPPLY by Milbrandt (2005) and Perlack et al. (2005). · Hay and wheat straws--Yield increase over time = historic

  9. Processes for pretreating lignocellulosic biomass: A review

    SciTech Connect (OSTI)

    McMillan, J.D.

    1992-11-01

    This paper reviews existing and proposed pretreatment processes for biomass. The focus is on the mechanisms by which the various pretreatments act and the influence of biomass structure and composition on the efficacy of particular pretreatment techniques. This analysis is used to identify pretreatment technologies and issues that warrant further research.

  10. Lessons learned from existing biomass power plants

    SciTech Connect (OSTI)

    Wiltsee, G.

    2000-02-24

    This report includes summary information on 20 biomass power plants, which represent some of the leaders in the industry. In each category an effort is made to identify plants that illustrate particular points. The project experiences described capture some important lessons learned that lead in the direction of an improved biomass power industry.

  11. Biomass Program 2007 Accomplishments - Full Report

    SciTech Connect (OSTI)

    none,

    2009-10-27

    The Office of Energy Efficiency and Renewable Energy's (EERE’s) Biomass Program works with industry, academia and its national laboratory partners on a balanced portfolio of research in biomass feedstocks and conversion technologies. This document provides Program accomplishments for 2007.

  12. IMPROVING BIOMASS LOGISTICS COST WITHIN AGRONOMIC SUSTAINABILITY CONSTRAINTS AND BIOMASS QUALITY TARGETS

    SciTech Connect (OSTI)

    J. Richard Hess; Kevin L. Kenney; Christopher T. Wright; David J. Muth; William Smith

    2012-10-01

    Equipment manufacturers have made rapid improvements in biomass harvesting and handling equipment. These improvements have increased transportation and handling efficiencies due to higher biomass densities and reduced losses. Improvements in grinder efficiencies and capacity have reduced biomass grinding costs. Biomass collection efficiencies (the ratio of biomass collected to the amount available in the field) as high as 75% for crop residues and greater than 90% for perennial energy crops have also been demonstrated. However, as collection rates increase, the fraction of entrained soil in the biomass increases, and high biomass residue removal rates can violate agronomic sustainability limits. Advancements in quantifying multi-factor sustainability limits to increase removal rate as guided by sustainable residue removal plans, and mitigating soil contamination through targeted removal rates based on soil type and residue type/fraction is allowing the use of new high efficiency harvesting equipment and methods. As another consideration, single pass harvesting and other technologies that improve harvesting costs cause biomass storage moisture management challenges, which challenges are further perturbed by annual variability in biomass moisture content. Monitoring, sampling, simulation, and analysis provide basis for moisture, time, and quality relationships in storage, which has allowed the development of moisture tolerant storage systems and best management processes that combine moisture content and time to accommodate baled storage of wet material based upon “shelf-life.” The key to improving biomass supply logistics costs has been developing the associated agronomic sustainability and biomass quality technologies and processes that allow the implementation of equipment engineering solutions.

  13. Modified GBIG Scenario as a Successful Alternative for Dark Energy

    E-Print Network [OSTI]

    Nozari, Kourosh

    2009-01-01

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  14. Modified GBIG Scenario as an Alternative for Dark Energy

    E-Print Network [OSTI]

    Kourosh Nozari; Narges Rashidi

    2009-09-02

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  15. Assessment of Biomass Resources in Liberia

    SciTech Connect (OSTI)

    Milbrandt, A.

    2009-04-01

    Biomass resources meet about 99.5% of the Liberian population?s energy needs so they are vital to basic welfare and economic activity. Already, traditional biomass products like firewood and charcoal are the primary energy source used for domestic cooking and heating. However, other more efficient biomass technologies are available that could open opportunities for agriculture and rural development, and provide other socio-economic and environmental benefits.The main objective of this study is to estimate the biomass resources currently and potentially available in the country and evaluate their contribution for power generation and the production of transportation fuels. It intends to inform policy makers and industry developers of the biomass resource availability in Liberia, identify areas with high potential, and serve as a base for further, more detailed site-specific assessments.

  16. BIOMASS COGASIFICATION AT POLK POWER STATION

    SciTech Connect (OSTI)

    John McDaniel

    2002-05-01

    Part of a closed loop biomass crop was recently harvested to produce electricity in Tampa Electric's Polk Power Station Unit No.1. No technical impediments to incorporating a small percentage of biomass into Polk Power Station's fuel mix were identified. Appropriate dedicated storage and handling equipment would be required for routine biomass use. Polk Unit No.1 is an integrated gasification combined cycle (IGCC) power plant. IGCC is a new approach to generating electricity cleanly from solid fuels such as coal, petroleum coke, The purpose of this experiment was to demonstrate the Polk Unit No.1 could process biomass as a fraction of its fuel without an adverse impact on availability and plant performance. The biomass chosen for the test was part of a crop of closed loop Eucalyptus trees.

  17. Bioconversion of waste biomass to useful products

    DOE Patents [OSTI]

    Grady, James L. (Fayetteville, AR); Chen, Guang Jiong (Fayetteville, AR)

    1998-01-01

    A process is provided for converting waste biomass to useful products by gasifying the biomass to produce synthesis gas and converting the synthesis gas substrate to one or more useful products. The present invention is directed to the conversion of biomass wastes including municipal solid waste, sewage sludge, plastic, tires, agricultural residues and the like, as well as coal, to useful products such as hydrogen, ethanol and acetic acid. The overall process includes the steps of gasifying the waste biomass to produce raw synthesis gas, cooling the synthesis gas, converting the synthesis gas to the desired product or products using anaerobic bioconversion, and then recovering the product or products. In accordance with a particular embodiment of the present invention, waste biomass is converted to synthesis gas containing carbon monoxide and, then, the carbon monoxide is converted to hydrogen by an anaerobic microorganism ERIH2, bacillus smithii ATCC No. 55404.

  18. Bioconversion of waste biomass to useful products

    DOE Patents [OSTI]

    Grady, J.L.; Chen, G.J.

    1998-10-13

    A process is provided for converting waste biomass to useful products by gasifying the biomass to produce synthesis gas and converting the synthesis gas substrate to one or more useful products. The present invention is directed to the conversion of biomass wastes including municipal solid waste, sewage sludge, plastic, tires, agricultural residues and the like, as well as coal, to useful products such as hydrogen, ethanol and acetic acid. The overall process includes the steps of gasifying the waste biomass to produce raw synthesis gas, cooling the synthesis gas, converting the synthesis gas to the desired product or products using anaerobic bioconversion, and then recovering the product or products. In accordance with a particular embodiment of the present invention, waste biomass is converted to synthesis gas containing carbon monoxide and, then, the carbon monoxide is converted to hydrogen by an anaerobic microorganism ERIH2, Bacillus smithii ATCC No. 55404. 82 figs.

  19. Brazil's Biofuels Scenario: What are the Main Drivers Which will...

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

    Brazil's Biofuels Scenario: What are the Main Drivers Which will Shape Investments in the Long Term? Brazil's Biofuels Scenario: What are the Main Drivers Which will Shape...

  20. Integrating Electricity Subsector Failure Scenarios into a Risk...

    Energy Savers [EERE]

    Integrating Electricity Subsector Failure Scenarios into a Risk Assessment Methodology (December 2013) Integrating Electricity Subsector Failure Scenarios into a Risk Assessment...