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1

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames  

E-Print Network (OSTI)

of premixed burners capable of stably burning ultra-lean hydrogen-air fuel mixtures. Such burners couldAnalyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames Peer-Timo Bremer, Member demonstrate our approach by analyzing three numerical simulations of lean hydrogen flames subject to different

Pascucci, Valerio

2

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames  

E-Print Network (OSTI)

- bly burning ultra-lean hydrogen-air fuel mixtures. Such burners could, for example, be used as oneAnalyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames P.-T. Bremer1, G. Weber2 of the temporal behavior. We demonstrate our approach by analyzing three numerical simulations of lean hydrogen

3

Vehicle Technologies Office Merit Review 2014: Next-Generation Ultra Lean Burn Powertrain  

Energy.gov (U.S. Department of Energy (DOE))

Presentation given by MAHLE Powertrain, LLC at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about next-generation ultra...

4

Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions Characterized particulate emissions from U.S.-legal...

5

Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI...  

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

Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Lean-burn SIDI...

6

Terrigal Burn MD Lean Physician Champion  

E-Print Network (OSTI)

Scientific reductionism is not definitive: dynamic, adaptive and interrelated systems, models of individuals of the processes of work, and the processes that support those processes, to support the people who create value for the patient (caregivers) 11 #12;lean six sigma Continuous improvement Process improvement The xx Way

Soloveichik, David

7

Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Chang H. Kim, Kevin Perry, Wei Li, Kushal Narayanaswamy, and Michael Viola Global Research &...

8

Passive Ammonia SCR for Lean Burn SIDI Engines  

Energy.gov (U.S. Department of Energy (DOE))

Passive NH3 SCR has been demonstrated as a high efficiency and low cost alternative lean NOx aftertreatment technology for stratified gasoline engines.

9

Method and apparatus for controlling fuel/air mixture in a lean burn engine  

DOE Patents (OSTI)

The system for controlling the fuel/air mixture supplied to a lean burn engine when operating on natural gas, gasoline, hydrogen, alcohol, propane, butane, diesel or any other fuel as desired. As specific humidity of air supplied to the lean burn engine increases, the oxygen concentration of exhaust gas discharged by the engine for a given equivalence ratio will decrease. Closed loop fuel control systems typically attempt to maintain a constant exhaust gas oxygen concentration. Therefore, the decrease in the exhaust gas oxygen concentration resulting from increased specific humidity will often be improperly attributed to an excessive supply of fuel and the control system will incorrectly reduce the amount of fuel supplied to the engine. Also, the minimum fuel/air equivalence ratio for a lean burn engine to avoid misfiring will increase as specific humidity increases. A relative humidity sensor to allow the control system to provide a more enriched fuel/air mixture at high specific humidity levels. The level of specific humidity may be used to compensate an output signal from a universal exhaust gas oxygen sensor for changing oxygen concentrations at a desired equivalence ratio due to variation in specific humidity specific humidity. As a result, the control system will maintain the desired efficiency, low exhaust emissions and power level for the associated lean burn engine regardless of the specific humidity level of intake air supplied to the lean burn engine.

Kubesh, John Thomas (San Antonio, TX); Dodge, Lee Gene (San Antonio, TX); Podnar, Daniel James (San Antonio, TX)

1998-04-07T23:59:59.000Z

10

Cellular burning in lean premixed turbulent hydrogen-air flames: coupling experimental and  

E-Print Network (OSTI)

of burners, particularly for alternative fuels, depends on improving our understanding of basic flame. Beckner1, M. J. Lijewski1 1 Center for Computational Science and Engineering, Lawrence Berkeley National for burning the fuel-lean mixtures of hydrogen or hydrogen-rich syngas fuels obtained from the gasification

11

Lean burn limit and time to light characteristics of laser ignition in gas turbines  

Science Journals Connector (OSTI)

Abstract This work details a study of laser ignition in a low pressure combustion test rig, representative of an industrial gas turbine (SGT-400, Siemens Industrial Turbomachinery Ltd.) and for the first time investigates the effect of air mass flow rate on combustion characteristics at air/fuel ratios at the lean burn limit. Both the lean burn limit and time taken to light are essential in determining the suitability of a specified air/fuel ratio, especially in multi-chamber ignition applications. Through extension of the lean burn limit and reduction of the time taken to light, the operating window for ignition with regards to the air/fuel ratio can be increased, leading to greater reliability and repeatability of ignition. Ignition of a natural gas and air mixture at atmospheric pressure was conducted using both a standard high energy igniter and a laser ignition system utilizing a Q-switched Nd:YAG laser source operating at 1064 nm wavelength. A detailed comparison of the lean burn limit and time taken to light for standard ignition and laser ignition is presented.

J. Griffiths; M. Riley; A. Kirk; A. Borman; J. Lawrence; C. Dowding

2014-01-01T23:59:59.000Z

12

Urban air quality improvement by using a CNG lean burn engine for city buses  

Science Journals Connector (OSTI)

The use of compressed natural gas (CNG)-fuelled lean-burn city bus engines has a significant potential for air quality improvement in urban areas. Particularly important is the reduction of NOx, as well as particulate and non-regulated HC-emissions. For this reason, a CNG-fuelled, lean-bum, turbocharged, intercooled engine equipped with catalytic converter was developed. The basic engine is a 6-cylinder, heavy duty, serial production Hungarian diesel engine which complies with Euro-2 emissions limits. The objective of this development was to meet European emission limits forecast for the year 2005 (NOx fuel consumption capability of the engine are reported. Based on the evaluation of economical feasibility, the costs of CNG bus operation is additionally discussed. It can be concluded that CNG city bus operation is - compared to diesel operation - a promising way to improve economically the local air quality.

Tamas Meretei; Joep A.N. van Ling; Cornelis Havenith

1998-01-01T23:59:59.000Z

13

Assessment of Rich-Burn, Quick-Mix, Lean-Burn Trapped Vortex Combustor for Stationary Gas Turbines  

SciTech Connect

This paper describes the evaluation of an alternative combustion approach to achieve low emissions for a wide range of fuel types. This approach combines the potential advantages of a staged rich-burn, quick-mix, lean-burn (RQL) combustor with the revolutionary trapped vortex combustor (TVC) concept. Although RQL combustors have been proposed for low-Btu fuels, this paper considers the application of an RQL combustor for high-Btu natural gas applications. This paper will describe the RQL/TVC concept and experimental results conducted at 10 atm (1013 kPa or 147 psia) and an inlet-air temperature of 644 K (700°F). The results from a simple network reactor model using detailed kinetics are compared to the experimental observations. Neglecting mixing limitations, the simplified model suggests that NOx and CO performance below 10 parts per million could be achieved in an RQL approach. The CO levels predicted by the model are reasonably close to the experimental results over a wide range of operating conditions. The predicted NOx levels are reasonably close for some operating conditions; however, as the rich-stage equivalence ratio increases, the discrepancy between the experiment and the model increases. Mixing limitations are critical in any RQL combustor, and the mixing limitations for this RQL/TVC design are discussed.

Douglas L. Straub; Kent H. Casleton; Robie E. Lewis; Todd G. Sidwell; Daniel J. Maloney; George A. Richards

2005-01-01T23:59:59.000Z

14

Vehicle Technologies Office 2013 Merit Review: A University Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines  

Energy.gov (U.S. Department of Energy (DOE))

A presentation given by the University of Michigan at the 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting about a university consortium to research efficient and clean high-pressure lean burn engines.

15

Combustion optimization in a hydrogen-enhanced lean burn SI engine  

E-Print Network (OSTI)

Lean operation of spark ignition (SI) automotive engines offers attractive performance incentives. Lowered combustion temperatures inhibit NO[sub]x pollutant formation while reduced manifold throttling minimizes pumping ...

Goldwitz, Joshua A. (Joshua Arlen), 1980-

2004-01-01T23:59:59.000Z

16

Predicting the behavior of a lean-burn hydrogen-enhanced engine concept  

E-Print Network (OSTI)

(cont.) Lean operation of a spark ignition (SI) internal combustion engine (ICE) offers attractive performance incentives. Lowered combustion temperatures inhibit formation of nitrogen oxides (NOx), while reduced intake ...

Ivanic, Žiga, 1978-

2004-01-01T23:59:59.000Z

17

Vehicle Technologies Office Merit Review 2014: Advanced Lean-Burn DI Spark Ignition Fuels Research  

Energy.gov (U.S. Department of Energy (DOE))

Presentation given by Sandia National Laboratories at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced lean...

18

Cellular burning in lean premixed turbulent hydrogen-air flames: Coupling experimental and computational analysis at the laboratory scale  

Science Journals Connector (OSTI)

One strategy for reducing US dependence on petroleum is to develop new combustion technologies for burning the fuel-lean mixtures of hydrogen or hydrogen-rich syngas fuels obtained from the gasification of coal and biomass. Fuel-flexible combustion systems based on lean premixed combustion have the potential for dramatically reducing pollutant emissions in transportation systems, heat and stationary power generation. However, lean premixed flames are highly susceptible to fluid-dynamical combustion instabilities making robust and reliable systems difficult to design. Low swirl burners are emerging as an important technology for meeting design requirements in terms of both reliability and emissions for next generation combustion devices. In this paper, we present simulations of a lean, premixed hydrogen flame stabilized on a laboratory-scale low swirl burner. The simulations use detailed chemistry and transport without incorporating explicit models for turbulence or turbulence/chemistry interaction. Here we discuss the overall structure of the flame and compare with experimental data. We also use the simulation data to elucidate the characteristics of the turbulent flame interaction and how this impacts the analysis of experimental measurements.

M S Day; J B Bell; R K Cheng; S Tachibana; V E Beckner; M J Lijewski

2009-01-01T23:59:59.000Z

19

Experimental investigation of burning velocities of ultra-wet methane-air-steam mixtures  

E-Print Network (OSTI)

Experimental investigation of burning velocities of ultra-wet methane-air-steam mixtures Eric Abstract Global burning velocities of methane-air-steam mixtures are measured on prismatic laminar Bunsen flames and lifted turbulent V-flames for various preheating temperatures, equivalence ratios and steam

Paris-Sud XI, Université de

20

Preface: Special Issue on Catalytic Control of Lean-Burn Engine...  

NLE Websites -- All DOE Office Websites (Extended Search)

XPS Tags: Nanoscope IIIa topographical nanostructures nanodevices ultra-high vacuum UHV VT SPM atomic-resolution imaging soil organic matter NOM SOM CO2 sequestration 2H NMR...

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Impact of natural gas fuel composition on criteria, toxic, and particle emissions from transit buses equipped with lean burn and stoichiometric engines  

Science Journals Connector (OSTI)

Abstract This study investigated the impacts of varying natural gas composition on the exhaust emissions from different technology transit buses. For this study, two CNG (compressed natural gas) buses equipped with lean burn combustion and \\{OCs\\} (oxidation catalysts), and one stoichiometric CNG bus equipped with a TWC (three-way catalyst) and EGR (exhaust gas recirculation) were tested on a chassis dynamometer over the CBD (Central Business District) cycle on six different gas blends each. The gases represented a range of compositions from gases with high levels of methane and correspondingly lower energy contents/WN (Wobbe number) to gases with higher levels of heavier hydrocarbons and correspondingly higher energy contents/WN. For the lean burn buses, gases with low methane contents exhibited higher \\{NOx\\} (nitrogen oxides) (19%–53%) and NMHC (non-methane hydrocarbon) (39%–102%) emissions, but lower emissions of THC (total hydrocarbon) (9%–24%), CH4 (methane) (23%–33%), and formaldehyde emissions (14%–45%). The stoichiometric engine bus with a TWC showed significantly reduced \\{NOx\\} and THC emissions compared to the lean burn buses, but did show higher levels of CO (carbon monoxide) and NH3 (ammonia). PM (particulate matter) mass emissions did not show any fuel effects, while PN (particle number) emissions exhibited some reductions for the higher WN gases.

Maryam Hajbabaei; Georgios Karavalakis; Kent C. Johnson; Linda Lee; Thomas D. Durbin

2013-01-01T23:59:59.000Z

22

System Study of Rich Catalytic/Lean burn (RCL) Catalytic Combustion for Natural Gas and Coal-Derived Syngas Combustion Turbines  

SciTech Connect

Rich Catalytic/Lean burn (RCL{reg_sign}) technology has been successfully developed to provide improvement in Dry Low Emission gas turbine technology for coal derived syngas and natural gas delivering near zero NOx emissions, improved efficiency, extending component lifetime and the ability to have fuel flexibility. The present report shows substantial net cost saving using RCL{reg_sign} technology as compared to other technologies both for new and retrofit applications, thus eliminating the need for Selective Catalytic Reduction (SCR) in combined or simple cycle for Integrated Gasification Combined Cycle (IGCC) and natural gas fired combustion turbines.

Shahrokh Etemad; Lance Smith; Kevin Burns

2004-12-01T23:59:59.000Z

23

Three-Dimensional Composite Nanostructures for Lean NOx Emission...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Nanowire Lean NOx Emission Control Catalysts Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic Catalysts Three-Dimensional Composite Nanostructures for Lean...

24

LEAN LOGISTICS  

Science Journals Connector (OSTI)

Lean logistics is the application of lean management principles ... from mass production, and depended on new logistics approaches to make it successful. Specifically,... Agile logistics (enterprise...

2000-01-01T23:59:59.000Z

25

Laminar burning velocities of lean hydrogen-air mixtures at pressures up to 1.0 MPa  

SciTech Connect

Values of laminar burning velocity, u{sub l}, and the associated strain rate Markstein number, Ma{sub sr}, of H{sub 2}-air mixtures have been obtained from measurements of flame speeds in a spherical explosion bomb with central ignition. Pressures ranged from 0.1 to 1.0 MPa, with values of equivalence ratio between 0.3 and 1.0. Many of the flames soon became unstable, with an accelerating flame speed, due to Darrieus-Landau and thermodiffusive instabilities. This effect increased with pressure. The flame wrinkling arising from the instabilities enhanced the flame speed. A method is described for allowing for this effect, based on measurements of the flame radii at which the instabilities increased the flame speed. This enabled u{sub l} and Ma{sub sr} to be obtained, devoid of the effects of instabilities. With increasing pressure, the time interval between the end of the ignition spark and the onset of flame instability, during which stable stretched flame propagation occurred, became increasingly small and very high camera speeds were necessary for accurate measurement. Eventually this time interval became so short that first Ma{sub sr} and then u{sub l} could not be measured. Such flame instabilities throw into question the utility of u{sub l} for high pressure, very unstable, flames. The measured values of u{sub l} are compared with those predicted by detailed chemical kinetic models of one-dimensional flames. (author)

Bradley, D.; Lawes, M.; Liu, Kexin; Woolley, R. [School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT (United Kingdom); Verhelst, S. [Department of Flow, Heat and Combustion Mechanics, Ghent University, Sint-Pietersnieuwstraat 41, B-9000 Ghent (Belgium)

2007-04-15T23:59:59.000Z

26

Understanding the Distributed Intra-Catalyst Impact of Sulfation on Water Gas Shift in a Lean NOx Trap Catalyst  

Energy.gov (U.S. Department of Energy (DOE))

The Lean NOx Trap catalyst is an aftertreatment technology for abatement of nitrogen-oxide emissions from lean-burn vehicle engines.

27

Three-Dimensional Composite Nanostructures for Lean NOx Emission...  

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

Emission Control Catalysts Three-Dimensional Composite Nanostructures for Lean NOx Emission Control Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic Catalysts...

28

HEART SMART NUTRITION Be a Lean Machine  

E-Print Network (OSTI)

Lesson 6 HEART SMART NUTRITION Be a Lean Machine This Heart Smart Nutrition series can help you Heart, Lung and Blood Institute). Physical activity increases your metabolic rate, which helps to burn more calories. Plus it helps the heart and lungs function to full capacity. Exercise also helps raise

29

Fuel Consumption and NOx Trade-offs on a Port-Fuel-Injected SI Gasoline Engine Equipped with a Lean-NOx Trap  

Energy.gov (U.S. Department of Energy (DOE))

Lean-burn improves PFI fuel economy by ~3% relative to best stoichiometric VCT/EGR conditions, when used in combination with VCT & EGR.

30

High-bandwidth Modulation of H2/Syngas Fuel to Control Combustion Dynamics in Micro-Mixing Lean Premix Systems  

SciTech Connect

The goal of this program was to develop and demonstrate fuel injection technologies that will facilitate the development of cost-effective turbine engines for Integrated Gasification Combined Cycle (IGCC) power plants, while improving efficiency and reducing emissions. The program involved developing a next-generation multi-point injector with enhanced stability performance for lean premix turbine systems that burn hydrogen (H2) or synthesis gas (syngas) fuels. A previously developed injector that demonstrated superior emissions performance was improved to enhance static flame stability through zone staging and pilot sheltering. In addition, piezo valve technology was implemented to investigate the potential for enhanced dynamic stability through high-bandwidth modulation of the fuel supply. Prototype injector and valve hardware were tested in an atmospheric combustion facility. The program was successful in meeting its objectives. Specifically, the following was accomplished: Demonstrated improvement of lean operability of the Parker multi-point injector through staging of fuel flow and primary zone sheltering; Developed a piezo valve capable of proportional and high-bandwidth modulation of gaseous fuel flow at frequencies as high as 500 Hz; The valve was shown to be capable of effecting changes to flame dynamics, heat release, and acoustic signature of an atmospheric combustor. The latter achievement indicates the viability of the Parker piezo valve technology for use in future adaptively controlled systems for the mitigation of combustion instabilities, particularly for attenuating combustion dynamics under ultra-lean conditions.

Jeff Melzak; Tim Lieuwen; Adel Mansour

2012-01-31T23:59:59.000Z

31

Burns Prevention  

NLE Websites -- All DOE Office Websites (Extended Search)

Burns Burns Burns can result from everyday things and activities in your home. The most common causes of burns are from scalds (steam, hot bath water, hot drinks and foods), fire, chemicals, electricity and overexposure to the sun. Some burns may be more serious than others. The severity of the burn is based on the depth of the burn. First degree burns are the least severe, and third degree burns are the most severe. Call 911 or seek medical attention if you are unsure of how severe your burn is. All burns are susceptible to tetanus (lockjaw). Get a tetanus shot every 10 years. If your last shot was 5 years ago, talk to your doctor - you may need a booster shot. Causes of Burns: Scalds Scalding injuries and burns are caused by hot tap water, hot beverages and food, and steam.

32

Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration  

SciTech Connect

Lean NOx Trap (LNT) catalysts can effectively reduce NOx from lean engine exhaust. Significant research for LNTs in diesel engine applications has been performed and has led to commercialization of the technology. For lean gasoline engine applications, advanced direct injection engines have led to a renewed interest in the potential for lean gasoline vehicles and, thereby, a renewed demand for lean NOx control. To understand the gasoline-based reductant chemistry during regeneration, a BMW lean gasoline vehicle has been studied on a chassis dynamometer. Exhaust samples were collected and analyzed for key reductant species such as H2, CO, NH3, and hydrocarbons during transient drive cycles. The relation of the reductant species to LNT performance will be discussed. Furthermore, the challenges of NOx storage in the lean gasoline application are reviewed.

Choi, Jae-Soon [ORNL] [ORNL; Prikhodko, Vitaly Y [ORNL] [ORNL; Partridge Jr, William P [ORNL] [ORNL; Parks, II, James E [ORNL; Norman, Kevin M [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL; Chambon, Paul H [ORNL] [ORNL; Thomas, John F [ORNL] [ORNL

2010-01-01T23:59:59.000Z

33

Effects of Inert Dilution and Preheating Temperature on Lean Flammability Limit of Syngas  

Science Journals Connector (OSTI)

Lean flammability limits (LFL) of syngas mixtures were measured at different levels of inert dilution and unburned gas preheating temperatures using a counter-flow flame burner. ... The syngas and air are then premixed within a mixing chamber before being injected into the counter-flow burners. ... (45) Multicomponent transport was used in the calculation to account for the Soret effect, which generally enhance the burning intensity of lean syngas flame. ...

Suhui Li; Yang Zhang; Xiaolong Qiu; Bo Li; Hai Zhang

2014-04-24T23:59:59.000Z

34

Lean Automation: Combining Lean with Industrial Robotics in Real Examples.  

E-Print Network (OSTI)

?? The purpose of this report is to analyze whether we can have a better automation manufacturing using lean solutions. First, this report is started… (more)

Delkhosh, Ali

2012-01-01T23:59:59.000Z

35

Information and Communication in Lean Product Development  

E-Print Network (OSTI)

In this thesis, the implications and influences that information and communication impose on lean product development in general, as well as the development of a lean Product Development Value Stream Display (lean PDVSD) ...

Graebsch, Martin

36

Lean transformation of a supply chain organization  

E-Print Network (OSTI)

There are two basic schools of thought regarding how to approach a Lean transformation. Either start with introducing Lean tools or start with driving a Lean cultural change. Academic researchers like Steve Spear (Harvard/MIT), ...

Walsh, Daniel Andres

2008-01-01T23:59:59.000Z

37

Lean Green Skating Machine Report No. 1  

E-Print Network (OSTI)

Lean Green Skating Machine Report No. 1 Lean Green Skating Machine Report No. 1 Submitted by Simon Page 1 of 19 DISTRIBUTION STATEMENT: Distribution authorized to all. #12;Lean Green Skating Machine Report No. 1 Page 2 of 19 DISTRIBUTION STATEMENT: Distribution authorized to all. #12;Lean Green Skating

Levi, Anthony F. J.

38

Applied Catalysis A: General 226 (2002) 183192 NO reduction by urea under lean conditions  

E-Print Network (OSTI)

-734-763-0459. E-mail address: gulari@engin.umich.edu (E. Gulari). burn gasoline or a diesel engine. Early studiesApplied Catalysis A: General 226 (2002) 183­192 NO reduction by urea under lean conditions over, Jiraporn Leeratc, Somchai Osuwanc a Chemical Engineering Department, University of Michigan, Ann Arbor, MI

Gulari, Erdogan

39

Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and US06, transient accelerations plus steady state * Fuels: Gasoline and intermediate ethanol blends (E0, E10, E20) * Measurements: - Particle mass: collection on Teflon-coated...

40

Advanced Lean-Burn DI Spark Ignition Fuels Research  

Energy.gov (U.S. Department of Energy (DOE))

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Advanced Lean-Burn DI Spark Ignition Fuels Research  

Energy.gov (U.S. Department of Energy (DOE))

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

42

Advanced Lean-Burn DI Spark Ignition Fuels Research  

Energy.gov (U.S. Department of Energy (DOE))

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

43

Lean Burn Natural Gas Engine R&D  

SciTech Connect

The primary objective of this cooperative research is to develop and verify models of internal combustion engine spark ignition devices in order to improve combustion chamber fuel ignition characteristics and to improve spark plug durability. As a direct result of this joint research, a novel spark plug design was improved. A theory of spark arc motion was developed that explains experimentally observed effects not explained by other published theories. The knowledge developed by this research will be used to further improve spark plugs as well as improve the ignition process in a combustion chamber. The predictive models developed here are compared with experimental measurements, including high-speed photographs, of the spark as it translates across the gap. Two different spark plug configurations were investigated: the conventional or J-gap plug, and a novel spark ignition device (the FANG plug) invented by Cummins, Inc., the CRADA partner. A description of the physics of arc dynamic motion in a spark plug gap, including the effects of an imposed transverse magnetic field, appears here in Appendix A as a result of the analytical effort. The theory proposed here does explain experimentally observed effects not completely explained by other research publications appearing in the scientific literature. These effects are due to pressure and ion, electron, and electrode interactions. A dominant mechanism for electrode erosion is presented for both spark plug configurations. Reversing the polarity of both types of spark plugs has verified this proposed erosion mechanism, according to data collected at Cummins. An extensive series of experiments measured the arc position, voltage, and current as a function of time during the approximately 2 millisecond spark discharge. FANG plug data, obtained with the fast-framing camera experimental apparatus operating at 200,000 frames per second, are presented that show the transverse arc velocity varying directly as the inverse square root of the elapsed time since arc initiation. At the request of Cummins, experiments were performed on three conventional spark plugs identical in design and having the same spark gap, but differing as follows: one was new, another had been used in an engine, and the third was new but had been sandblasted to simulate a used plug. Cummins had observed that only the used plug required a significantly higher breakdown voltage. Experiments at ORNL indicated that the used plug had a significantly higher breakdown voltage confirming the Cummins observations (although the sandblasted plug also exhibited a higher breakdown voltage than the new plug but lower than the used plug), and thus an apparent increase of the arc breakdown voltage results as the plug ages in use. Further analysis of this phenomenon is warranted.

None

2005-09-12T23:59:59.000Z

44

Transitioning to a Lean Enterprise: A Guide for Leaders, Volume II, Transition-to-Lean Roadmap  

E-Print Network (OSTI)

Volume II of this guide is a standalone reference model for assisting lean change agents and lean implementation teams in transforming the enterprise to a lean state. It is also of value to enterprise leaders and senior ...

Lean Advancement Initiative

2000-01-01T23:59:59.000Z

45

Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps...  

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

Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps Development of Chemical Kinetic Models for Lean NOx Traps Modeling the Regeneration Chemistry of Lean NOx Traps...

46

Modeling of Lean Exhaust Emissions Control Systems | Department...  

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

Lean Exhaust Emissions Control Systems Modeling of Lean Exhaust Emissions Control Systems 2002 DEER Conference Presentation: National Renewable Energy Laboratory...

47

Experimental Investigations of the Lean Blowout Limit of Different Syngas Mixtures in an Atmospheric, Premixed, Variable-Swirl Burner  

Science Journals Connector (OSTI)

Experimental Investigations of the Lean Blowout Limit of Different Syngas Mixtures in an Atmospheric, Premixed, Variable-Swirl Burner ... The observed higher LBO limit of the diluted generic syngas could be due to the effect of N2 addition on the adiabatic flame temperature (Figure 18) and burning velocity of the generic syngas. ... The LSI does not need to undergo significant alteration to operate with the hydrocarbon fuels but needs further studies for adaptation to burn dild. ...

Parisa Sayad; Alessandro Schönborn; Jens Klingmann

2013-04-05T23:59:59.000Z

48

Lean, Energy, and Savings: Energy Impacts of Lean Manufacturing  

E-Print Network (OSTI)

response to changing customer demand. This, in turn, can lead to high quality at the lowest cost in the shortest amount of time. Toyota Motor Corporation management took Lean concepts and developed a management philosophy called Toyota Production... in start-up time could also be adapted to estimating the energy-saving impacts of reducing or eliminating other types of waste. Looking back at the seven ?deadly? wastes identified by Toyota Motor Corporation, there are three wastes where...

Milward, R.; Gilless, C.; Brown, K.

2013-01-01T23:59:59.000Z

49

Global burned area and biomass burning emissions from small fires  

E-Print Network (OSTI)

such as agricultural waste burning or prescribed burning infield agricultural waste burning [e.g. , Yevich and Logan,

Randerson, J. T; Chen, Y.; van der Werf, G. R; Rogers, B. M; Morton, D. C

2012-01-01T23:59:59.000Z

50

Integrating Energy Management and Lean Manufacturing  

E-Print Network (OSTI)

manufacturing process. This paper will focus on industrial facilities that participated in a Power Smart 1 Lean initiative with Manitoba Hydro. The objective of this service is to leverage lean principles by capitalizing on the synergies between lean.... Nearly all the electricity generated is from water power from 14 hydroelectric generating stations. Additionally, Manitoba Hydro exports electricity to over 30 electric utilities through participation in four wholesale markets in North America. All...

Stocki, M.

51

Emissions Control for Lean Gasoline Engines  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SCR Urea TankInjector Cost Customer Acceptance Not in Project Scope Specific Key Issues: Cost, Durability, Fuel Penalty, Operating Temp.,+... Lean Gasoline SI Direct Injection...

52

Measurement and Characterization of Lean NOx Adsorber Regeneration...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

for the Department of Energy Purpose of Work: Enable efficient lean engine market penetration by meeting emission regulations with aftertreatment * Research of Lean NOx...

53

Three-Dimensional Composite Nanostructures for Lean NOx Emission...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Three-Dimensional Composite Nanostructures for Lean NOx Emission Control Three-Dimensional Composite Nanostructures for Lean NOx Emission Control 2010 DOE Vehicle Technologies and...

54

NOx Adsorber (Lean NOx Trap) Fundamentals (Agreement #10049 ...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NOx Adsorber (Lean NOx Trap) Fundamentals (Agreement 10049 - PNNL Project 47120) NOx Adsorber (Lean NOx Trap) Fundamentals (Agreement 10049 - PNNL Project 47120) Presentation...

55

Reductant Chemistry during LNT Regeneration for a Lean Gasoline...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Poster presented at the 16th...

56

Modeling the Regeneration Chemistry of Lean NOx Traps | Department...  

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

the Regeneration Chemistry of Lean NOx Traps Modeling the Regeneration Chemistry of Lean NOx Traps Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored...

57

Light-Duty Lean GDI Vehicle Technology Benchmark | Department...  

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

Control for Lean Gasoline Engines Advanced PHEV Engine Systems and Emissions Control Modeling and Analysis Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine...

58

Case Study: USPS - Lean Green Teams  

NLE Websites -- All DOE Office Websites (Extended Search)

Use of "Lean Green" teams and a Use of "Lean Green" teams and a detailed guidebook helps develop a conservation culture throughout the USPS USPS - Lean Green Teams The Postal Service's 630+ Lean Green Teams are made up of postal employees who collaborate across functions to identify and implement low- and no-cost ways to con- serve natural resources, purchase fewer consumable products, and reduce waste of all kinds. Teams are organized at the area, district, and facility levels. The teams employ on-line tools including a Lean Green Team Guide, a Green Project List, and a Green Initiative Tracking Tool that tracks both leading indicators (status of project imple- mentation) and lagging indicators (financial and environmental impacts).

59

Logistics: A Step Towards Lean Construction Proceedings IGLC-7 121  

E-Print Network (OSTI)

Logistics: A Step Towards Lean Construction Proceedings IGLC-7 121 LOGISTICS: A STEP TOWARDS LEAN of these experimental operations with a special emphasis on site logistics, which is considered as a step towards lean WORDS Logistics, lean construction, quality, transport. 1 Head of project "Site and Industry

Tommelein, Iris D.

60

Ammonia Generation over TWC for Passive SCR NOX Control for Lean Gasoline Engines  

SciTech Connect

A commercial three-way catalyst (TWC) was evaluated for ammonia (NH3) generation on a 2.0-liter BMW lean burn gasoline direct injection engine as a component in a passive ammonia selective catalytic reduction (SCR) system. The passive NH3 SCR system is a potential low cost approach for controlling nitrogen oxides (NOX) emissions from lean burn gasoline engines. In this system, NH3 is generated over a close-coupled TWC during periodic slightly rich engine operation and subsequently stored on an underfloor SCR catalyst. Upon switching to lean, NOX passes through the TWC and is reduced by the stored NH3 on the SCR catalyst. NH3 generation was evaluated at different air-fuel equivalence ratios at multiple engine speed and load conditions. Near complete conversion of NOX to NH3 was achieved at =0.96 for nearly all conditions studied. At the =0.96 condition, HC emissions were relatively minimal, but CO emissions were significant. Operation at AFRs richer than =0.96 did not provide more NH3 yield and led to higher HC and CO emissions. Results of the reductant conversion and consumption processes were used to calculate a representative fuel consumption of the engine operating with an ideal passive SCR system. The results show a 1-7% fuel economy benefit at various steady-state engine speed and load points relative to a stoichiometric engine operation.

Prikhodko, Vitaly Y [ORNL] [ORNL; Parks, II, James E [ORNL; Pihl, Josh A [ORNL] [ORNL; Toops, Todd J [ORNL] [ORNL

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Lean transformation in aerospace assembly operations  

E-Print Network (OSTI)

For the past two decades, virtually all manufacturing companies in the United States have adopted or are in the process of adopting lean manufacturing. Globalization has resulted in the increased availability of reliable, ...

Frauenberger, Douglas H

2007-01-01T23:59:59.000Z

62

Lean Product Development: Making Waste Transparent  

E-Print Network (OSTI)

Lean manufacturing developed by Toyota is a production philosophy that focuses on streamlining of value added activities and eliminating waste within the process with the goal to better meet customer demand. It constitutes ...

Bauch, Christoph

2004-01-15T23:59:59.000Z

63

Designing the lean enterprise performance measurement system  

E-Print Network (OSTI)

The research contained in this thesis explores design attributes of the enterprise performance measurement system required for the transformation to the lean enterprise and its management. Arguments are made from the ...

Mahidhar, Vikram

2005-01-01T23:59:59.000Z

64

BNL | Biomass Burns  

NLE Websites -- All DOE Office Websites (Extended Search)

Biomass Burn Observation Project (BBOP) Biomass Burn Observation Project (BBOP) Aerosols from biomass burning are recognized to perturb Earth's climate through the direct effect (both scattering and absorption of incoming shortwave radiation), the semi-direct effect (evaporation of cloud drops due to absorbing aerosols), and indirect effects (by influencing cloud formation and precipitation. Biomass burning is an important aerosol source, providing an estimated 40% of anthropogenically influenced fine carbonaceous particles (Bond, et al., 2004; Andrea and Rosenfeld, 2008). Primary organic aerosol (POA) from open biomass burns and biofuel comprises the largest component of primary organic aerosol mass emissions at northern temperate latitudes (de Gouw and Jimenez, 2009). Data from the IMPROVE

65

Leaning Juniper Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Leaning Juniper Wind Farm Leaning Juniper Wind Farm Facility Leaning Juniper Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner PacifiCorp Developer PPM Energy Inc Energy Purchaser PacifiCorp Location Gilliam County OR Coordinates 45.67598°, -120.242715° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.67598,"lon":-120.242715,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

66

CX-007613: Categorical Exclusion Determination  

Energy.gov (U.S. Department of Energy (DOE))

Next Generation Ultra Lean Burn Powertrain CX(s) Applied: A9 Date: 01/10/2012 Location(s): California Offices(s): National Energy Technology Laboratory

67

Aerospace mergers and acquisitions from a lean enterprise perspective  

E-Print Network (OSTI)

In the past twenty years, companies in the aerospace industry experienced major transitions: mergers and acquisitions, and lean transformation initiatives. This thesis presents research about the relation of lean efforts ...

Kim, Junhong, 1974-

2004-01-01T23:59:59.000Z

68

Enterprise transformation & lean implementation in a globally dispersed organization  

E-Print Network (OSTI)

In July 2007, the Supply Planning Organization (SPO) decided to begin its Lean journey. Through some analysis the decision was made to take a culture first approach and then follow with the use of Lean tools. The time had ...

Katyal, Abhishek

2010-01-01T23:59:59.000Z

69

Roadmap for Building Lean Supplier Networks (Roadmap Tool)  

E-Print Network (OSTI)

This tool represents a "how-to" implementation guide that lays out a structured process for evolving lean supply chain management capabilities in order to build lean supplier networks. The Roadmap Tool is linked to the ...

Bozdogan, Kirk

2004-03-15T23:59:59.000Z

70

Lean transformation and relocation of jet engine assembly operations  

E-Print Network (OSTI)

As part of continuing lean transformation efforts at Pratt & Whitney, the Middletown Engine Center has turned its focus on the GP7000 turbofan engine as a target for lean implementation. Projected increases in GP7000 ...

Hale, Stephen Andrew

2011-01-01T23:59:59.000Z

71

Measurement and Characterization of Lean NOx Adsorber Regeneration...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(Multimode): 250k * Barriers - Emissions regulations for advanced lean engine market penetration * Partners - Catalyst Suppliers * Manufacturers of Emissions Controls...

72

The Benefit of Lean Techniques Interfaced with Modular Construction  

E-Print Network (OSTI)

. was to implement the Lean principles in their manufacturing process. Upon implementation of Lean in the process, there was again another noticeable increase in the quality of the product being produced, a typical result form that implementation. Additionally... the same course. Douthit 22 #2; Chapter 5: Suggestions for Additional Work Further investigation of how Lean manufacturing, Lean construction, and modular construction interface should be pursued for the sake of the construction industry in the United...

Douthit, Colin

2013-12-20T23:59:59.000Z

73

Preparing limestone for burning  

Science Journals Connector (OSTI)

Classification of limestone before burning can be done by the screening method ... enables us to use the heat of the waste gases from the calcination units.

V. I. Goncharov; T. P. Kirichenko

74

Leaning Juniper 2A | Open Energy Information  

Open Energy Info (EERE)

Leaning Juniper 2A Leaning Juniper 2A Jump to: navigation, search Name Leaning Juniper 2A Facility Leaning Juniper 2A Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Iberdrola Renewables Developer Iberdrola Renewables Energy Purchaser Bonneville Power Admin Location 3 miles southwest of Arlington OR Coordinates 45.646628°, -120.24145° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.646628,"lon":-120.24145,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

75

Burn Wound Infections  

Science Journals Connector (OSTI)

...described, noting areas of circumferential...of body surface area burned (252...protein-rich plasma into terminal...clinical effects of thermal inhalation injury...312). High-frequency ventilation may...standard of care for large thermal injuries...of the burned area is excised during...

Deirdre Church; Sameer Elsayed; Owen Reid; Brent Winston; Robert Lindsay

2006-04-01T23:59:59.000Z

76

Ultra-Low NOx Advanced Vortex Combustor  

SciTech Connect

An ultra lean-premixed Advanced Vortex Combustor (AVC) has been developed and tested. The natural gas fueled AVC was tested at the U.S. Department of Energy’s National Energy Technology Laboratory (USDOE NETL) test facility in Morgantown (WV). All testing was performed at elevated pressures and inlet temperatures and at lean fuel-air ratios representative of industrial gas turbines. The improved AVC design exhibited simultaneous NOx/CO/UHC emissions of 4/4/0 ppmv (all emissions are at 15% O2 dry). The design also achieved less than 3 ppmv NOx with combustion efficiencies in excess of 99.5%. The design demonstrated tremendous acoustic dynamic stability over a wide range of operating conditions which potentially makes this approach significantly more attractive than other lean premixed combustion approaches. In addition, a pressure drop of 1.75% was measured which is significantly lower than conventional gas turbine combustors. Potentially, this lower pressure drop characteristic of the AVC concept translates into overall gas turbine cycle efficiency improvements of up to one full percentage point. The relatively high velocities and low pressure drops achievable with this technology make the AVC approach an attractive alternative for syngas fuel applications.

Edmonds, R.G. (Ramgen Power Systems, Inc., Bellevue, WA); Steele, R.C. (Ramgen Power Systems, Inc., Bellevue, WA); Williams, J.T. (Ramgen Power Systems, Inc., Bellevue, WA); Straub, D.L.; Casleton, K.H.; Bining, Avtar (California Energy Commission, Sacramento, CA)

2006-05-01T23:59:59.000Z

77

ULTRA-LOW NOX ADVANCED VORTEX COMBUSTOR  

SciTech Connect

An ultra lean-premixed Advanced Vortex Combustor (AVC) has been developed and tested. The natural gas fueled AVC was tested at the U.S. Department of Energy’s National Energy Technology Laboratory (USDOE NETL) test facility in Morgantown (WV). All testing was performed at elevated pressures and inlet temperatures and at lean fuel-air ratios representative of industrial gas turbines. The improved AVC design exhibited simultaneous NOx/CO/UHC emissions of 4/4/0 ppmv (all emissions are at 15% O2 dry). The design also achieved less than 3 ppmv NOx with combustion efficiencies in excess of 99.5%. The design demonstrated tremendous acoustic dynamic stability over a wide range of operating conditions which potentially makes this approach significantly more attractive than other lean premixed combustion approaches. In addition, a pressure drop of 1.75% was measured which is significantly lower than conventional gas turbine combustors. Potentially, this lower pressure drop characteristic of the AVC concept translates into overall gas turbine cycle efficiency improvements of up to one full percentage point. The relatively high velocities and low pressure drops achievable with this technology make the AVC approach an attractive alternative for syngas fuel applications.

Ryan G. Edmonds; Robert C. Steele; Joseph T. Williams; Douglas L. Straub; Kent H. Casleton; Avtar Bining

2006-05-01T23:59:59.000Z

78

Leaning Juniper 2B | Open Energy Information  

Open Energy Info (EERE)

B B Jump to: navigation, search Name Leaning Juniper 2B Facility Leaning Juniper 2B Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Iberdrola Renewables Developer Iberdrola Renewables Energy Purchaser Bonneville Power Admin Location 3 miles southwest of Arlington OR Coordinates 45.646628°, -120.24145° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.646628,"lon":-120.24145,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

79

Sun tanning/burning  

NLE Websites -- All DOE Office Websites (Extended Search)

Sun tanning/burning Sun tanning/burning Name: Richardo Cossyleon Location: N/A Country: N/A Date: N/A Question: Why doesn't the sun affect or burn people with dark pigment in their skin? Replies: Good question! The pigment, melanin, is more toward the surface of the upper skin layer and absorbs ultraviolet rays from the Sun or artificial sources. This absorption protects the lower layers from damage and inflammation (burning). A very dark skinned person may have over a 1000X the protection from UV compared to a fair skinned person. Fair skinned people should use sun-block lotions especially early in the warm season AND keep exposure to the sun, particularly at midday, to less than 30 min. Even if a person gets a good tan, the sun's UV will age the skin over time. It will get wrinkled and develop age lines, etc. after many years of exposure. Moderation is the key!

80

Simulation of lean premixed turbulent combustion  

E-Print Network (OSTI)

combustion systems that can burn fuels such as hydrogen or syngas.syngas, which is obtained from coal gasi?cation. E?ective utilization of these fuels requires combustion

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Lean Six Sigma iSO 9001:2000  

E-Print Network (OSTI)

Six Sigma Lean Six Sigma iSO 9001:2000 Lean buSineSS prOceSSeS imprOvement tOOLS StatiSticaL meth ·ISO/TS16949 ·ISO14001EMS ·MalcolmBaldrigeNational Quality Award Statistical Methods ·Statistical program implementation as wellasafullrangeofLeanSixSigma andSixSigmaservices. Our prOFeSSiOnaL StaFF can iSO

Asaithambi, Asai

82

Efficient Emissions Control for Multi-Mode Lean DI Engines  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

for the U.S. Department of Energy Objectives * Enable efficient lean engine market penetration by meeting emission regulations with efficient, cost effective aftertreatment...

83

Investigation of Aging Mechanisms in Lean NOx Traps | Department...  

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

"Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland. merit08johnson.pdf More Documents & Publications Investigation of Aging Mechanisms in Lean NOx Traps...

84

Light-Duty Lean GDI Vehicle Technology Benchmark  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

M. Wagner (PI) Paul H. Chambon (Presenter) Oak Ridge National Laboratory Light-Duty Lean GDI Vehicle Technology Benchmark This presentation does not contain any proprietary,...

85

Lean Gasoline System Development for Fuel Efficient Small Car...  

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

and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting ace063smith2012o.pdf More Documents & Publications Lean Gasoline System Development for Fuel...

86

Lean Gasoline System Development for Fuel Efficient Small Car...  

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

and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ace063smith2011o.pdf More Documents & Publications Lean Gasoline System Development for Fuel...

87

Reductant Chemistry during LNT Regeneration for a Lean Gasoline...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oak Ridge National Laboratory VW Scholar at the University of Tennessee Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Poster P-09 2010 DEER Directions...

88

Lean Manufacturing in the Oil and Gas Industry .  

E-Print Network (OSTI)

??This research aims to investigate the lean production tools and techniques in the oil and gas industry with a focus on the oilfield services industry.… (more)

Sakhardande, Rohan

2011-01-01T23:59:59.000Z

89

Exhaust particle characterization for lean and stoichiometric DI vehicles operating on ethanol-gasoline blends  

SciTech Connect

Gasoline direct injection (GDI) engines can offer better fuel economy and higher performance over their port fuel-injected (PFI) counterparts, and are now appearing in increasingly more U.S. and European vehicles. Small displacement, turbocharged GDI engines are replacing large displacement engines, particularly in light-duty trucks and sport utility vehicles, in order for manufacturers to meet the U.S. fuel economy standards for 2016. Furthermore, lean-burn GDI engines can offer even higher fuel economy than stoichiometric GDI engines and have overcome challenges associated with cost-effective aftertreatment for NOx control. Along with changes in gasoline engine technology, fuel composition may increase in ethanol content beyond the current 10% due to the recent EPA waiver allowing 15% ethanol. In addition, the Renewable Fuels Standard passed as part of the 2007 Energy Independence and Security Act (EISA) mandates the use of biofuels in upcoming years. GDI engines are of environmental concern due to their high particulate matter (PM) emissions relative to port-fuel injected (PFI) gasoline vehicles; widespread market penetration of GDI vehicles may result in additional PM from mobile sources at a time when the diesel contribution is declining. In this study, we characterized particulate emissions from a European certified lean-burn GDI vehicle operating on ethanol-gasoline blends. Particle mass and particle number concentration emissions were measured for the Federal Test Procedure urban driving cycle (FTP 75) and the more aggressive US06 driving cycle. Particle number-size distributions and organic to elemental carbon ratios (OC/EC) were measured for 30 MPH and 80 MPH steady-state operation. In addition, particle number concentration was measured during wide open throttle accelerations (WOTs) and gradual accelerations representative of the FTP 75. Fuels included certification gasoline and 10% (E10) and 20% (E20) ethanol blends from the same supplier. The particle mass emissions were approximately 3 and 7 mg/mile for the FTP75 and US06, respectively, with lower emissions for the ethanol blends. The data are compared to a previous study on a U.S.-legal stoichiometric GDI vehicle operating on the same ethanol blends. The lean-burn GDI vehicle emitted a higher number of particles, but had an overall smaller average size. Particle number per mile decreased with increasing ethanol content for the transient tests. For the 30 and 80 mph tests, particle number concentration decreased with increasing ethanol content, although the shape of the particle size distribution remained the same. Engine-out OC/EC ratios were highest for the stoichiometric GDI vehicle with E20, but tailpipe OC/EC ratios were similar for all vehicles.

Storey, John Morse [ORNL] [ORNL; Barone, Teresa L [ORNL] [ORNL; Thomas, John F [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL

2012-01-01T23:59:59.000Z

90

Framework for Understanding the Relationship between Lean and Safety in Construction  

E-Print Network (OSTI)

Lean construction borrows concepts from lean manufacturing and Toyota Production System in order to eliminate waste and add value to the construction process. Manufacturing processes utilizing lean principles have matured and developed a clear...

Prakash, Ramya

2011-08-08T23:59:59.000Z

91

Using Discrete System Simulation to Model and Illustrate Lean Production Concepts  

E-Print Network (OSTI)

Lean production systems are certainly not a new concept in the manufacturing industry. However, there are still a great number of production associates that do not yet have a true understanding of lean because the lean concepts have never been...

Coleman, Phillip B.

2012-05-11T23:59:59.000Z

92

Synergies of High-Efficiency Clean Combustion and Lean NOx Trap...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Combustion and Lean NOx Trap Catalysts investigation of potential synergies of low emission advanced combustion techniques and advanced lean exhaust catalytic aftertreatment....

93

Performance of a spark ignition, lean burn, natural gas internal combustion engine .  

E-Print Network (OSTI)

??Relative to gasoline and diesel, use of natural gas as a transport fuel can produce significantly lower emissions of particulate matter and greenhouse gases. Future… (more)

ABBASI ATIBEH, PAYMAN

2012-01-01T23:59:59.000Z

94

Preface: Special Issue on Catalytic Control of Lean-Burn Engine Exhaust Emissions  

SciTech Connect

This issue of Catalysis Today includes original research articles based on select presentations from the Mobile Emissions Control Symposium at the 22nd North American Catalysis Society (NACS) Meeting held in Detroit in June 2011, with a particular focus on catalyzed diesel emissions control. The Symposium was dedicated to the memory of Dr. Haren Gandhi, a visionary technology leader and a passionate environmental advocate.

Yezerets, Aleksey; Peden, Charles HF; Szanyi, Janos; Nova, Isabella; Epling, Bill

2012-04-30T23:59:59.000Z

95

A University Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines  

Energy.gov (U.S. Department of Energy (DOE))

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

96

A University Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines  

Energy.gov (U.S. Department of Energy (DOE))

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

97

Nanocomposites for nitrogen oxide emissions control in lean-burn engines  

E-Print Network (OSTI)

(cont.) reducing agent than propane in the SCR of NO. Pt-Rh/CuO/A1?O? nanocomposites capable of adsorbing SO? in oxygen-rich environment as metal sulfates and releasing SO? in reducing atmosphere were synthesized with ...

Pitukmanorom, Pemakorn, 1976-

2004-01-01T23:59:59.000Z

98

A University Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines  

Energy.gov (U.S. Department of Energy (DOE))

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

99

Dense Fast Random Projections and Lean Walsh Edo Liberty ,  

E-Print Network (OSTI)

Dense Fast Random Projections and Lean Walsh Transforms Edo Liberty , , Nir Ailon , and Amit Singer , Abstract. Random projection methods give distributions over k Ã? d matrices such that if a matrix (chosen Projections, Lean Walsh Transforms, Johnson Lin- denstrauss, Dimension reduction. 1 Introduction

Singer, Amit

100

Reflections on Money and Lean Construction Proceedings IGLC-7 253  

E-Print Network (OSTI)

Reflections on Money and Lean Construction Proceedings IGLC-7 253 REFLECTIONS ON MONEY AND LEAN CONSTRUCTION Federico Orrechia1 and Gregory A. Howell2 ABSTRACT Money is a particularly tricky resource to minimize risk of schedule overrun. Here again the role of money is to help clarify value for the client

Tommelein, Iris D.

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

European Lean Gasoline Direct Injection Vehicle Benchmark  

SciTech Connect

Lean Gasoline Direct Injection (LGDI) combustion is a promising technical path for achieving significant improvements in fuel efficiency while meeting future emissions requirements. Though Stoichiometric Gasoline Direct Injection (SGDI) technology is commercially available in a few vehicles on the American market, LGDI vehicles are not, but can be found in Europe. Oak Ridge National Laboratory (ORNL) obtained a European BMW 1-series fitted with a 2.0l LGDI engine. The vehicle was instrumented and commissioned on a chassis dynamometer. The engine and after-treatment performance and emissions were characterized over US drive cycles (Federal Test Procedure (FTP), the Highway Fuel Economy Test (HFET), and US06 Supplemental Federal Test Procedure (US06)) and steady state mappings. The vehicle micro hybrid features (engine stop-start and intelligent alternator) were benchmarked as well during the course of that study. The data was analyzed to quantify the benefits and drawbacks of the lean gasoline direct injection and micro hybrid technologies from a fuel economy and emissions perspectives with respect to the US market. Additionally that data will be formatted to develop, substantiate, and exercise vehicle simulations with conventional and advanced powertrains.

Chambon, Paul H [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL; Edwards, Kevin Dean [ORNL] [ORNL; Norman, Kevin M [ORNL] [ORNL; Prikhodko, Vitaly Y [ORNL] [ORNL; Thomas, John F [ORNL] [ORNL

2011-01-01T23:59:59.000Z

102

Influence of reactive species on the lean blowout limit of an industrial DLE gas turbine burner  

Science Journals Connector (OSTI)

Abstract In order to achieve ultra-low emissions of both NOX and CO it is imperative to use a homogeneous premixed combustor. To lower the emissions further, the equivalence ratio can be lowered. By doing so, combustion is moved towards the lean blowout (LBO) limit. To improve the blowout characteristics of a burner, heat and radicals can be supplied to the flame zone. This can be achieved using a pre-chamber combustor. In this study, a central body burner, called the RPL (rich-pilot-lean) section, was used as a pre-chamber combustor to supply heat and radicals to a downscaled industrial burner. The flue gas from the RPL is mixed with the surrounding fresh mixture and form a second flame zone. This zone acts as a stabilizer for the investigated burner. The LBO limit was modeled using two perfectly stirred reactors (PSRs) in series, which allows the chemical influence on the LBO limit to be isolated. The resulting trends for the modeled LBO limit were in agreement with measured data. Increasing the equivalence ratio in the RPL section, thus increasing the energy supplied by the fuel, is a major contributor to combustion stability up to a limit where the temperature decrease is too large support combustion. For lean RPL combustion, the reactive species O, H and OH in combination affect the stability to a greater extent than the temperature alone. At rich equivalence ratios, the conversion of methane to hydrogen and carbon monoxide in the RPL section is a factor influencing the LBO limit. The results are compared with emission probe measurements that were used to investigate the LBO limit for methane and a generic syngas (10% CH4, 67.5% H2, and 22.5% CO). The syngas was also investigated after being diluted with nitrogen to a Wobbe index of 15 MJ/m3.

Ivan R. Sigfrid; Ronald Whiddon; Robert Collin; Jens Klingmann

2014-01-01T23:59:59.000Z

103

Prescribed Range Burning in Texas  

E-Print Network (OSTI)

and implement a prescribed burn, including predicting fire and weather behavior, topography, fuel, firing techniques, fire containment, safety precautions and costs. A graph illustrates factors that influence prescribed burning and a table shows the relationship...

White, Larry D.; Hanselka, C. Wayne

2000-04-25T23:59:59.000Z

104

13, 3226932289, 2013 Biomass burning  

E-Print Network (OSTI)

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

Dong, Xiquan

105

7, 1733917366, 2007 Biomass burning  

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

106

Experimental and modeling study of the effect of elevated pressure on lean high-hydrogen syngas flames  

Science Journals Connector (OSTI)

Abstract New laminar burning velocity measurements of 85:15% (by volume) H2–CO and H2–N2 mixtures with O2–He oxidizer are reported at lean conditions and elevated pressures (1–10 atm). Experiments are conducted using the heat flux method at initial temperature of 298 K. In this technique a near adiabatic flame is stabilized by balancing the heat loss from the flame to the burner with heat gain to the unburnt gas mixture such that no net heat loss to the burner is observed. A new facility was designed for such high pressure burner stabilized flame experiments. The results obtained are compared with five chemical kinetic schemes from literature for syngas mixtures at elevated pressures. Large differences are observed between the kinetic schemes and the experiments which can be attributed to certain key chemical reactions. A study of the kinetics is performed through reaction rate and sensitivity analysis which indicate that a high uncertainty still remains in important reactions that drive the production and consumption of species such as H, HO2 and OH. For lean mixtures the reaction H + O2(+M) = HO2(+M) contributes significantly to the deviation of models from the experiments. The present analysis in the lean mixture regime suggests the need for further studies in assessment and modification of rate constants for this reaction.

M. Goswami; J.G.H. van Griensven; R.J.M. Bastiaans; A.A. Konnov; L.P.H. de Goey

2014-01-01T23:59:59.000Z

107

Synergies of High-Efficiency Clean Combustion and Lean NOx Trap Catalysts  

Energy.gov (U.S. Department of Energy (DOE))

investigation of potential synergies of low emission advanced combustion techniques and advanced lean exhaust catalytic aftertreatment.

108

Stability and Mixing Characterization of Industrial Lean Premixed Nozzles  

NLE Websites -- All DOE Office Websites (Extended Search)

and Mixing Characterization of and Mixing Characterization of Industrial Lean Premixed Nozzles * Unique research capabilities have been developed for the study of fuel mixing and combustion instabilities in lean premixed combustors. * These capabilities have been used to characterize the performance of industrial lean premixed nozzles for Solar Turbines, United Technologies and General Electric. * This information has been used by the gas turbine manufacturers to gain understanding and new insights for the development of stable low emissions lean premixed combustors. Cooling ring Solar Turbines Centaur 50 Nozzle Stainless steel exhaust Fused silica combustor Photo of Stable Flame Photo of Unstable Flame InAs Detector HeNe Laser (3.39 μm) InAs Detector Centaur 50 Nozzle Measurement of equivalence ratio

109

Catalysts for Lean Engine Emission Control - Emissions & Emission Controls  

NLE Websites -- All DOE Office Websites (Extended Search)

Catalysts for Lean Engine Emission Control Catalysts for Lean Engine Emission Control Catalysts for controlling NOx from lean engines are studied in great detail at FEERC. Lean NOx Traps (LNTs) and Selective Catalytic Reduction (SCR) are two catalyst technologies of interest. Catalysts are studied from the nanoscale to full scale. On the nanoscale, catalyst powders are analyzed with chemisorptions techniques to determine the active metal surface area where catalysis occurs. Diffuse Reflectance Infrared Fourier Transform (DRIFT) spectroscopy is used to observe the chemical reactions occurring on the catalyst surface during catalyst operation. Both powder and coated catalyst samples are analyzed on bench flow reactors in controlled simulated exhaust environments to better characterize the chemical

110

McLean Electric Coop, Inc | Open Energy Information  

Open Energy Info (EERE)

McLean Electric Coop, Inc McLean Electric Coop, Inc Jump to: navigation, search Name McLean Electric Coop, Inc Place North Dakota Utility Id 12090 Utility Location Yes Ownership C NERC Location MRO NERC MRO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] Energy Information Administration Form 826[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Electric Heat Rate(Submeter-October to April) Off Peak Grain Drying Commercial Residential Rate Residential Three Phase Accounts Industrial Three Phase Irrigation Average Rates Residential: $0.0955/kWh Commercial: $0.0945/kWh Industrial: $0.0518/kWh The following table contains monthly sales and revenue data for McLean

111

Lean implementation across value stream in main rotor blade area  

E-Print Network (OSTI)

The primary goal for this project was to help expand the existing capability of Sikorsky's main rotor blade business from raw material (titanium) through final assembly. The project helped to facilitate the ongoing lean ...

Phoenix, Casey J. (Casey John)

2007-01-01T23:59:59.000Z

112

Lean Gasoline System Development for Fuel Efficient Small Car...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Small Car Lean Gasoline System Development for Fuel Efficient Small Car Vehicle Technologies Office Merit Review 2014: ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine...

113

Pt-free, Perovskite-based Lean NOx Trap Catalysts  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Conference Pt-free, Perovskite-based Lean NO x Trap Catalysts Gongshin Qi, Chang H. Kim, and Wei Li GM Global Research & Development 2010 DEER Conference Overview LNT Chemistry...

114

The Guide to Lean Enablers for Managing Engineering Programs  

E-Print Network (OSTI)

This document provides the findings of the Joint MIT?PMI?INCOSE Lean in Program Management Community of Practice that are based on a 1?year project executed during 2011 and 2012. The community was made up of selected subject ...

Oehmen, Josef

115

Planning a Prescribed Burn  

E-Print Network (OSTI)

drinks are best used when it?s over) Water or fire retardant in the ? pumpers Gasoline for the pumpers ? Diesel fuel and gas for the drip ? torches Lunch for the crew (a cooler with ? sandwich makings is handy) First aid kit ? Keys or combinations... in April with picloram to knock out my prickly pear.? Now you are heading in the right direction. Other reading Prescribed Range Burning in Texas. Texas AgriLife Extension Service. E-37. Acknowledgment The original manuscript on which...

Hanselka, C. Wayne

2009-04-01T23:59:59.000Z

116

Teaching lean construction: perspectives on theory and practice  

E-Print Network (OSTI)

required them to visit the glossary on the LCI website to identify all concepts addressed by the Airplane Game. In addition, within the first two weeks, he also introduced the Toyota Production System and Toyota Way principles (Liker 2003... of course readings introduced lean theory (the Toyota Way and value stream mapping) (Liker 2003), the transformation-flow-value (TFV) theory of production (Koskela 2000), and lean project delivery (definition, design, construction, and IPD). The second...

Tsao, Cynthia C. Y.; Azambuja, Marcelo; Hamzeh, Farook R.; Rybkowski, Zofia K.

2013-07-31T23:59:59.000Z

117

The Lean Innovation Roadmap - A Systematic Approach to Introducing Lean in Product Development Processes and Establishing a Learning Organization  

E-Print Network (OSTI)

The application of Lean principles in the field of product development is the subject of a growing number of publications. In the past, significant efforts have been undertaken to identify and describe the practices of a ...

Hoppmann, Joern

2009-06-26T23:59:59.000Z

118

Biomass burning and global change  

Science Journals Connector (OSTI)

The burning of living and dead biomass including forests savanna grasslands and agricultural wastes is much more widespread and extensive than previously believed and may consume as much as 8700 teragrams of dry biomass matter per year. The burning of this much biomass releases about 3940 teragrams of total carbon or about 3550 teragrams of carbon in the form of CO2 which is about 40% of the total global annual production of CO2. Biomass burning may also produce about 32% of the world’s annual production of CO 24% of the nonmethane hydrocarbons 20% of the oxides of nitrogen and biomass burn combustion products may be responsible for producing about 38% of the ozone in the troposphere. Biomass burning has increased with time and today is overwhelmingly human?initiated.

Joel S. Levine; Wesley R. Cofer III; Donald R. Cahoon Jr.; Edward L. Winsted; Brian J. Stocks

1992-01-01T23:59:59.000Z

119

Rayleigh/Raman/LIF measurements in a turbulent lean premixed combustor  

SciTech Connect

Much of the industrial electrical generation capability being added worldwide is gas-turbine engine based and is fueled by natural gas. These gas-turbine engines use lean premixed (LP) combustion to meet the strict NO{sub x} emission standards, while maintaining acceptable levels of CO. In conventional, diffusion flame gas turbine combustors, large amount of NO{sub x} forms in the hot stoichiometric zones via the Zeldovich (thermal) mechanism. Hence, lean premixed combustors are rapidly becoming the norm, since they are specifically designed to avoid these hot stoichiometric zones and the associated thermal NO{sub x}. However, considerable research and development are still required to reduce the NO{sub x} levels (25-40 ppmvd adjusted to 15% O{sub 2} with the current technology), to the projected goal of under 10 ppmvd by the turn of the century. Achieving this objective would require extensive experiments in LP natural gas (or CH{sub 4}) flames for understanding the combustion phenomena underlying the formation of the exhaust pollutants. Although LP combustion is an effective way to control NO{sub x}, the downside is that it increases the CO emissions. The formation and destruction of the pollutants (NO{sub x} and CO) are strongly affected by the fluid mechanics, the finite-rate chemistry, and their (turbulence-chemistry) interactions. Hence, a thorough understanding of these interactions is vital for controlling and reducing the pollutant emissions. The present research is contributing to this goal by providing a detailed nonintrusive laser based data set with good spatial and temporal resolutions of the pollutants (NO and CO) along with the major species, temperature, and OH. The measurements reported in this work, along with the existing velocity data on a turbulent LP combustor burning CH{sub 4}, would provide insight into the turbulence-chemistry interactions and their effect on pollutant formation.

Nandula, S.P.; Pitz, R.W. [Vanderbilt Univ., Nashville, TN (United States). Dept. of Mechanical Engineering; Barlow, R.S.; Fiechtner, G.J. [Sandia National Labs., Albuquerque, NM (United States)

1995-12-31T23:59:59.000Z

120

Lean Catalytic Combustion for Ultra-low Emissions at High Temperature in Gas-Turbine Burners  

Science Journals Connector (OSTI)

This illustrates the weak point of current catalytic combustion technology: the unavailability of catalytic systems stable at the temperature of the gas turbine inlet temperature. ... The possible feeds are methane, gaseous fuels, and gasified biomasses. ... In particular, the paper presents current development status and design challenges being addressed by Siemens Westinghouse Power Corp. for large industrial engines (>200 MW) and by Solar Turbines for smaller engines (Turbine Systems (ATS) program. ...

Fabrizio D’Alessandro; Giovanna Pacchiarotta; Alberto Rubino; Mauro Sperandio; Pierluigi Villa; Arturo Manrique Carrera; Reza Fakhrai; Gianluigi Marra; Annalisa Congiu

2010-12-16T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Development and application of management tools within a high-mix, low-volume lean aerospace manufacturing environment  

E-Print Network (OSTI)

The design and implementation of a lean production system is a complex task requiring an intimate understanding of the fundamental lean principles. Much of the published lean literature is written at a high level of ...

McKenney, Kevin (Kevin Bryan), 1977-

2005-01-01T23:59:59.000Z

122

ARM - Biomass Burning Observation Project (BBOP)  

NLE Websites -- All DOE Office Websites (Extended Search)

March 2013 BNL BBOP Website Contacts Larry Kleinman, Lead Scientist Arthur Sedlacek Biomass Burning Observation Project (BBOP) Biomass Burning Plants, trees, grass, brush, and...

123

Molecular Characterization of Biomass Burning Aerosols Using...  

NLE Websites -- All DOE Office Websites (Extended Search)

Biomass Burning Aerosols Using High Resolution Mass Spectrometry. Molecular Characterization of Biomass Burning Aerosols Using High Resolution Mass Spectrometry. Abstract: Chemical...

124

Heat loss reduction and hydrocarbon combustion in ultra-micro combustors for ultra-micro gas turbines  

Science Journals Connector (OSTI)

For the development of ultra-micro combustors for Ultra-Micro Gas Turbines (UMGT), heat loss reduction and hydrocarbon fuel use are the key issues. An approach for reducing the effect of heat loss in ultra-micro combustors was proposed. The heat loss ratio (HLR), which was defined as the ratio of heat loss rate from a combustor to heat release rate in the combustor, was related to the space heating rate (SHR), and experiments using some flat-flame ultra-micro combustors with hydrogen/air premixture exhibited the relation of HLR ? SHR?0.92/? (?, characteristic length of combustor). From the viewpoint of heat loss reduction, burning at high SHR in compact ultra-micro combustors is essential for a practical UMGT combustor. As for hydrocarbon combustion, the flat-flame burning method with and without catalyst was applied to propane fuel. The flat-flame combustor, having an inner diameter of 18.5 mm, a height of 3.5 mm, and a volume of 0.806 cm3, could form a propane flame successfully in the chamber without a catalyst and achieved an extremely high SHR of 3370 MW/(MPa m3). Flame stable region was wide enough, and the combustion efficiency achieved was more than 99.4% between the equivalence ratios of 0.5 and 0.7 at m ? a = 0.06 g / s . The flat-flame combustor using a Pt-impregnated porous plate showed catalytic combustion, but did not improve the combustion characteristic. On the other hand, the flat-flame combustor using a nozzle whose surface was covered with Pt showed a combination of catalytic and gas-phase combustion with improved combustion efficiency for a wider range of equivalence ratios, due to CO oxidation in the burned gas after gas-phase combustion in the chamber.

Takashi Sakurai; Saburo Yuasa; Taku Honda; Shoko Shimotori

2009-01-01T23:59:59.000Z

125

Be a Lean, Mean, Green Eating Machine | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine January 31, 2012 - 2:53pm Addthis Kristin Swineford Communication Specialist, Weatherization and Intergovernmental Programs Like most Americans, I watched the State of the Union to hear President Obama outline his goals for the year ahead, to understand his energy outlook and plans, and of course, to see what Michelle would be wearing (a stunning royal blue, of course). When listening to the President highlight his administration's clean energy initiatives, I couldn't help but remember the First Family's goals to reduce childhood obesity in America. By no surprise, the link between nationwide health improvement and energy efficiency efforts is strong. By reducing our demand for processed and imported foods, we can improve the

126

Be a Lean, Mean, Green Eating Machine | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine January 31, 2012 - 2:53pm Addthis Kristin Swineford Communication Specialist, Weatherization and Intergovernmental Programs Like most Americans, I watched the State of the Union to hear President Obama outline his goals for the year ahead, to understand his energy outlook and plans, and of course, to see what Michelle would be wearing (a stunning royal blue, of course). When listening to the President highlight his administration's clean energy initiatives, I couldn't help but remember the First Family's goals to reduce childhood obesity in America. By no surprise, the link between nationwide health improvement and energy efficiency efforts is strong. By reducing our demand for processed and imported foods, we can improve the

127

Microsoft Word - Draft Leaning Juniper II Tiered ROD _2_.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Leaning Juniper II Wind Project Leaning Juniper II Wind Project March 2009 B o n n e v i l l e P o w e r A d m i n i s t r a t i o n 1 INTRODUCTION The Bonneville Power Administration (BPA) has decided to offer contract terms for interconnection of up to 200 megawatts (MW) of power to be generated by the proposed Leaning Juniper II Wind Project (Wind Project) into the Federal Columbia River Transmission System (FCRTS). Iberdrola Renewables, Inc. (Iberdrola) proposes to construct and operate the proposed Wind Project in Gilliam County, Oregon, and has requested interconnection to the FCRTS at BPA's Jones Canyon Substation in Gilliam County, Oregon. BPA will expand this existing substation and install new equipment at the substation to accommodate this additional power into the FCRTS. BPA's decision to offer terms to interconnect the Wind Project is consistent with BPA's

128

16.852J / ESD.61J Integrating The Lean Enterprise, Fall 2002  

E-Print Network (OSTI)

Addresses some of the important issues involved with the planning, development, and implementation of lean enterprises. People, technology, process, and management dimensions of an effective lean manufacturing company are ...

Nightingale, Deborah J.

129

Lean effectiveness model for products and services : servicing existing systems in aerospace and technology  

E-Print Network (OSTI)

Enterprises undergo transformation for more efficient and effective performance and growth. The Lean Enterprise Self Assessment Tool (LESAT) is a product of the Lean Advancement Initiative (LAI) and the Massachusetts ...

Srivastava, Tina Prabha

2012-01-01T23:59:59.000Z

130

A lean enterprise approach for developing high speed rail in Japan and Portugal  

E-Print Network (OSTI)

This thesis explores and evaluates the application of the lean enterprise concept to the expansion and development of the high speed railway industry in Japan. The basic idea of the lean enterprise is increasing value-added ...

Iwamura, Nobuhiro

2007-01-01T23:59:59.000Z

131

Combustion lean limits fundamentals and their application to a SI hydrogen-enhanced engine concept  

E-Print Network (OSTI)

Operating an engine with excess air, under lean conditions, has significant benefits in terms of increased engine efficiency and reduced emissions. However, under high dilution levels, a lean limit is reached where combustion ...

Ayala, Ferran A. (Ferran Alberto), 1976-

2006-01-01T23:59:59.000Z

132

Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study on Sulfur Effects Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study on Sulfur Effects Presentation given...

133

DOE Will Convert Northeast Home Heating Oil Reserve to Ultra Low Sulfur  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE Will Convert Northeast Home Heating Oil Reserve to Ultra Low DOE Will Convert Northeast Home Heating Oil Reserve to Ultra Low Sulfur Distillate DOE Will Convert Northeast Home Heating Oil Reserve to Ultra Low Sulfur Distillate February 1, 2011 - 12:00pm Addthis Washington, DC - The current inventory of the Northeast Home Heating Oil Reserve will be converted to cleaner burning ultra low sulfur distillate to comply with new, more stringent fuel standards by some Northeastern states, the U.S. Department of Energy (DOE) said today. The State of New York and other Northeastern states are implementing more stringent fuel standards that require replacement of high sulfur (2,000 parts per million) heating oil to ultra low sulfur fuel (15 parts per million). As a result, DOE will sell the current inventory of the Northeast

134

DOE Will Convert Northeast Home Heating Oil Reserve to Ultra Low Sulfur  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Will Convert Northeast Home Heating Oil Reserve to Ultra Low Will Convert Northeast Home Heating Oil Reserve to Ultra Low Sulfur Distillate DOE Will Convert Northeast Home Heating Oil Reserve to Ultra Low Sulfur Distillate February 1, 2011 - 12:00pm Addthis Washington, DC - The current inventory of the Northeast Home Heating Oil Reserve will be converted to cleaner burning ultra low sulfur distillate to comply with new, more stringent fuel standards by some Northeastern states, the U.S. Department of Energy (DOE) said today. The State of New York and other Northeastern states are implementing more stringent fuel standards that require replacement of high sulfur (2,000 parts per million) heating oil to ultra low sulfur fuel (15 parts per million). As a result, DOE will sell the current inventory of the Northeast Home Heating Oil Reserve, a total of approximately 2 million barrels, and

135

Sun Life Financial announces McLean Budden will become a subsidiary of MFS Investment Management  

E-Print Network (OSTI)

Sun Life Financial announces McLean Budden will become a subsidiary of MFS Investment Management Earlier today, Sun Life Financial announced that McLean Budden will become a subsidiary of MFS InvestmentLean Budden funds offered through Sun Life Financial's Core Investment Selection. There are no immediate

Northern British Columbia, University of

136

Alliance Lean Design/Construct on a Small High Tech Project Proceedings IGLC `98  

E-Print Network (OSTI)

Alliance Lean Design/Construct on a Small High Tech Project Proceedings IGLC `98 ALLIANCE LEAN practitioner firms. It will grow even more dramatically through the formation of informal and formal alliances3 joined in an informal alliance and tested their conviction that Lean Design and Construction can

Tommelein, Iris D.

137

Category:Burns, OR | Open Energy Information  

Open Energy Info (EERE)

Burns, OR Burns, OR Jump to: navigation, search Go Back to PV Economics By Location Media in category "Burns, OR" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Burns OR PacifiCorp (Oregon).png SVFullServiceRestauran... 71 KB SVHospital Burns OR PacifiCorp (Oregon).png SVHospital Burns OR Pa... 74 KB SVLargeHotel Burns OR PacifiCorp (Oregon).png SVLargeHotel Burns OR ... 74 KB SVLargeOffice Burns OR PacifiCorp (Oregon).png SVLargeOffice Burns OR... 69 KB SVMediumOffice Burns OR PacifiCorp (Oregon).png SVMediumOffice Burns O... 71 KB SVMidriseApartment Burns OR PacifiCorp (Oregon).png SVMidriseApartment Bur... 72 KB SVOutPatient Burns OR PacifiCorp (Oregon).png SVOutPatient Burns OR ... 69 KB SVPrimarySchool Burns OR PacifiCorp (Oregon).png

138

Lean Supply Chain Management Value Stream Mapping & Logistics Costs Tracking  

E-Print Network (OSTI)

Lean Supply Chain Management Value Stream Mapping & Logistics Costs Tracking Supply Chain (physical, informational, financial) in order to have better insight on the logistics costs and the transit Stream Mapping method. The analysis is mainly focused on the global logistics and the production planning

Dalang, Robert C.

139

Lean NOx Reduction with Dual Layer LNT/SCR Catalysts  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Roles of ceria in LNT SCR: I ncreases NOx storage & NO conversion at low tem perature P rom otes W GS reaction Conditions: Lean: 500 ppm NO, 5% O 2 ; 60s Rich: 2.5% H 2 ; 5s X H2...

140

Turbulence-Chemistry Interaction in Lean Premixed Hydrogen Combustion  

E-Print Network (OSTI)

Turbulence-Chemistry Interaction in Lean Premixed Hydrogen Combustion A. J. Aspden1,2 , M. S. Day2 between fuel consumption and heat release. Keywords: turbulent premixed combustion, low Mach number flow or hydrogen-rich mixtures obtained from gasi- fication of coal or biomass. These types of fuels provide clean

Bell, John B.

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Biomass Burning Observation Project Specifically,  

NLE Websites -- All DOE Office Websites (Extended Search)

Burning Observation Project Burning Observation Project Specifically, the aircraft will obtain measurements of the microphysical, chemical, hygroscopic, and optical properties of aerosols. Data captured during BBOP will help scientists better understand how aerosols combine and change at a variety of distances and burn times. Locations Pasco, Washington. From July through September, the G-1 will be based out of its home base in Washington. From this location, it can intercept and measure smoke plumes from naturally occurring uncontrolled fires across Washington, Oregon, Idaho, Northern California, and Western Montana. Smoke plumes aged 0-5 hours are the primary targets for this phase of the campaign. Memphis, Tennessee. In October, the plane moves to Tennessee to sample prescribed

142

Open Burning (New Mexico) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Open Burning (New Mexico) Open Burning (New Mexico) Open Burning (New Mexico) < Back Eligibility Commercial Construction General Public/Consumer Industrial Residential Program Info Start Date 2003 State New Mexico Program Type Environmental Regulations Provider New Mexico Environment Department The New Mexico Environment Department's Air Quality Bureau regulates the open burning rules established by the Environmental Improvement Board. These rules are established to protect public health and welfare by establishing controls on pollution produced by open burning. Open burning is allowed for recreational and ceremonial purposes, for barbecuing, for heating purposes in fireplaces, for the noncommercial cooking of food for human consumption and for warming by small wood fires at construction

143

Mercury Emissions from Biomass Burning in China  

Science Journals Connector (OSTI)

Because the burned area products from remote sensors with medium resolution often miss the crop burning in fields due to its small size, we used the official statistics data at the provincial level to estimate the mercury emissions from crop residues burning in fields and biofuel combustion in homes. ... Although the amount of crop residues burnt in fields in China could not be reflected accurately in burned area products (MCD45A1) because of their small size, they could be located by MODIS fire counts data. ... Frequently burning grasslands in Africa and Australia, and agricultural waste burning globally, contribute relatively little to the Hg budget. ...

Xin Huang; Mengmeng Li; Hans R. Friedli; Yu Song; Di Chang; Lei Zhu

2011-09-27T23:59:59.000Z

144

Wood would burn  

Science Journals Connector (OSTI)

Absract In view of the world-wide problem of energy sustainability and greenhouse gas production (carbon dioxide), it is timely to review the issues involved in generating heat and power from all fuels and especially new (to the UK) solid fuels, including high moisture fuels such as wood, SRF, oil shale, tar sands and brown coal, which will become major international fuels as oil and gas become depleted. The combustion properties of some of these materials are significantly different from traditional coal, oil and gas fuels, however the technology proposed herein is also applicable to these conventional fuels. This paper presents some innovative combustion system options and the associated technical factors that must be considered for their implementation. For clarity of understanding, the novel concepts will be largely presented in terms of a currently developing solid fuel market; biomass wood chips. One of the most important characteristics of many solid fuels to be used in the future (including oil shale and brown coal) is their high moisture content of up to 60%. This could be removed by utilising low grade waste heat that is widely available in industry to dry the fuel and thus reduce transport costs. Burning such dried wood for power generation also increases the energy available from combustion and thus acts as a thermal transformer by upgrading the low grade heat to heat available at combustion temperatures. The alternative approach presented here is to recover the latent heat by condensing the extrinsic moisture and the water formed during combustion. For atmospheric combustion, the temperature of the condensed combustion products is below the dew point at about 55–65 °C and is only suitable for recovery in an efficient district heating system. However, in order to generate power from the latent heat, the condensation temperature must be increased to the level where the heat can be used in the thermodynamic power cycle. This can be achieved by increasing the combustion pressure to above 80 bar, resulting in the recovered latent heat being available at more than 200 °C. It can then be used to increase the cycle efficiency by about 15% by pre-heating the boiler water and/or combustion air etc. A further advantage is that the high pressure of the combustion gases also reduces the superheater tube stress since it can balance the steam pressure. The key advantage of this high pressure flue gas is that it is above the pressure at which carbon dioxide ‘condenses’ to a liquid or supercritical gas at atmospheric temperature. Thus when used with oxy-fuel combustion, the carbon dioxide flue gas from which the moisture has been condensed can be cooled to atmospheric temperature and the supercritical CO2 can be fed directly into the pipes leading to the sequestration site. An important consideration of these strategies is to ensure that non-condensable gases in the exhaust, including oxygen and nitrogen, do not adversely affect the ‘condensation’ processes. When oxy-fuel combustion is used, the flame temperature must be moderated by a cool diluent. Recycled carbon dioxide is often proposed for this duty. However, since the latent heat is recovered, the moisture or even additional water can fulfil this role. This latter option may be advantageous since it is more efficient to pump wood chip fuel in water into the high pressure zone rather than feed solid wood particles. Surplus water can be simply drained and the wet wood chips are a good fuel when the latent heat of the moisture in the fuel gases is recovered into the power cycle. Bearing in mind that it is much more efficient to pump a liquid to high pressure than to compress the same material as a gas, indicates that cryogenic oxygen is a suitable material to use for an efficient power station that generates energy from biomass (or other fuels such as coal etc). Finally, combustion of the hydrogen from the water–gas reaction with oxygen allows the steam temperature in the turbine to be increased to the “gas-turbine engine” range of 1000–1400 °C an

Jim Swithenbank; Qun Chen; Xiaohui Zhang; Vida Sharifi; Mohamed Pourkashanian

2011-01-01T23:59:59.000Z

145

McLean, Virginia: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

McLean, Virginia: Energy Resources McLean, Virginia: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 38.9342776°, -77.1774801° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.9342776,"lon":-77.1774801,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

146

Quantifying Energy Savings from Lean Manufacturing Productivity Increases  

E-Print Network (OSTI)

Quantifying Energy Savings from Lean Manufacturing Productivity Increases John Seryak Gary Epstein Mark D’Antonio Engineer jseryak@ers-inc.com President gepstein@ers-inc.com Vice President mdantonio@ers-inc.com Energy & Resource Solutions..., Inc. Haverhill, MA ABSTRACT A number of energy efficiency programs seek a reduction in the energy intensity of manufacturing processes. However, promoting energy efficiency through productivity improvements is not a widely accepted...

Seryak, J.; Epstein, G.; D'Antonio, M.

2006-01-01T23:59:59.000Z

147

Effect of H2/CO ratio and N2/CO2 dilution rate on laminar burning velocity of syngas investigated by direct measurement and simulation  

Science Journals Connector (OSTI)

Abstract Laminar burning velocities of syngas/air premixed flames, varying with H2/CO ratio (from 5/95 to 75/25) and N2 or CO2 dilution rate (from 0% to 60%), were accurately measured using a Teflon coated Heat Flux burner and OH-PLIF based Bunsen flame method. Experiments were carried out at atmospheric pressure and room temperature, with fuel/air equivalence ratios ranging from fuel-lean to fuel-rich. Coupled with experimental data, three chemical kinetic mechanisms, namely GRI-Mech 3.0, USC Mech II and Davis H2–CO mechanism, were validated. The Davis H2–CO and USC Mech II mechanisms appear to provide a better prediction for the laminar burning velocity. The laminar burning velocity variations with H2 and dilution gas contents were systematically investigated. For given dilution gas fraction, the laminar burning velocity reduction rate was enhanced as H2/CO ratio increasing. Effects of the syngas components and equivalence ratio variation on the concentrations of radical H and OH were also studied. It appears that there is a strong linear correlation between the laminar burning velocity and the maximum concentration of the H radical in the reaction zone for syngas. This characteristic is exclusively different from that in methane air premixed flame. These findings indicated that the high thermal diffusivity of the H radical played an important role in the laminar burning velocity enhancement and affected the laminar burning velocity reduction rate under dilution condition.

Z.H. Wang; W.B. Weng; Y. He; Z.S. Li; K.F. Cen

2014-01-01T23:59:59.000Z

148

Raymond Burns > Product Research Technologist - Exxon Mobile...  

NLE Websites -- All DOE Office Websites (Extended Search)

Raymond Burns Product Research Technologist - Exxon Mobile raymond.burns@gmail.com Formerly a member of the DiSalvo Group, Ray earned his PhD in August 2013...

149

Applying Lean Concepts to Waste Site Closure - 13137  

SciTech Connect

Washington Closure Hanford (WCH) was selected by the U.S. Department of Energy, Richland Operations Office to manage the River Corridor Closure Project, a 10-year contract in which WCH will clean up 220 mi{sup 2} of contaminated land at the Hanford Site in Richland, Washington. In the summer of 2011, with Tri-Party (DOE-RL, Environmental Protection Agency and Washington State Department of Ecology) Agreement Milestones due at the end of the calendar year, standard work practices were challenged in regards to closure documentation development. The Lean process, a concept that maximizes customer value while minimizing waste, was introduced to WCH's Sample Design and Cleanup Verification organization with the intention of eliminating waste and maximizing efficiencies. The outcome of implementing Lean processes and concepts was impressive. It was determined that the number of non-value added steps far outnumbered the value added steps. Internal processing time, document size, and review times were all reduced significantly; relationships with the customer and the regulators were also improved; and collaborative working relationships with the Tri Parties have been strengthened by working together on Lean initiatives. (authors)

Proctor, M.L. [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)] [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)

2013-07-01T23:59:59.000Z

150

ULTRA-LIGHTWEIGHT CEMENT  

SciTech Connect

The objective of this project is to develop an improved ultra-lightweight cement using ultra-lightweight hollow glass spheres (ULHS). Work reported herein addresses tasks performed in the fourth quarter as well as the other three quarters of the past year. The subjects that were covered in previous reports and that are also discussed in this report include: Analysis of field laboratory data of active cement applications from three oil-well service companies; Preliminary findings from a literature review focusing on problems associated with ultra-lightweight cements; Summary of pertinent information from Russian ultra-lightweight cement literature review; and Comparison of compressive strengths of ULHS systems using ultrasonic and crush methods Results reported from the fourth quarter include laboratory testing of ULHS systems along with other lightweight cement systems--foamed and sodium silicate slurries. These comparison studies were completed for two different densities (10.0 and 11.5 lb/gal) and three different field application scenarios. Additional testing included the mechanical properties of ULHS systems and other lightweight systems. Studies were also performed to examine the effect that circulation by centrifugal pump during mixing has on breakage of ULHS.

Fred Sabins

2001-10-23T23:59:59.000Z

151

The burn bactericidal index: A bactericidal index specific for burn patients  

Science Journals Connector (OSTI)

The percentage of the body surface area burned together with the bactericidal capacity of polymorphs were found to have an influence on burned patients' resistance to infection. This new indicator of resistance to infection in burns, the Burn Bactericidal Index (BBI), was high in patients not susceptible to infection especially in patients vaccinated against Pseudomonas aeruginosa, but low in patients with extensive burns and in patients with septicaemia and other acute clinical infections.

E.A. Roe

1979-01-01T23:59:59.000Z

152

On the back of a cocktail napkin: An exploration of graphic definitions of lean construction  

E-Print Network (OSTI)

application to construction,” D. Tech. thesis, Helsinki Univ. of Technology, Espoo, Finland, (April 3). Koskela, L., Howell, G., Ballard, G., and Tommelein, I. (2002). “The foundations of lean...

Rybkowski, Zofia K.; Abdelhamid, Tariq; Forbes, Lincoln

2013-07-31T23:59:59.000Z

153

Effect of air flow rate and fuel moisture on the burning behaviours of biomass and simulated municipal solid wastes in packed beds  

Science Journals Connector (OSTI)

Combustion of biomass and municipal solid wastes is one of the key areas in the global cleaner energy strategy. But there is still a lack of detailed and systematically theoretical study on the packed bed burning of biomass and municipal solid wastes. The advantage of theoretical study lies in its ability to reveal features of the detailed structure of the burning process inside a solid bed, such as reaction zone thickness, combustion staging, rates of individual sub-processes, gas emission and char burning characteristics. These characteristics are hard to measure by conventional experimental techniques. In this paper, mathematical simulations as well as experiments have been carried out for the combustion of wood chips and the incineration of simulated municipal solid wastes in a bench-top stationary bed and the effects of primary air flow rate and moisture level in the fuel have been assessed over wide ranges. It is found that volatile release as well as char burning intensifies with an increase in the primary air flow until a critical point is reached where a further increase in the primary air results in slowing down of the combustion process; a higher primary airflow also reduces the char fraction burned in the final char-burning-only stage, shifts combustion in the bed to a more fuel-lean environment and reduces CO emission at the bed top; an increase in the moisture level in the fuel produces a higher flame front temperature in the bed at low primary air flow rates.

Y.B Yang; V.N Sharifi; J Swithenbank

2004-01-01T23:59:59.000Z

154

Burn  

E-Print Network (OSTI)

stream that meanders through the cavern. My guide tells me the brook was once a roaring river, two hundred million years ago this site was covered by an inland sea. He points out salamander and raccoon tracks in the mud as we hike past Mirror... While Painting a Red Canna: A Rhapsody 52 IV. New Poems Halloween 54 Alabaster Caverns 55 Subterranean Red 57 Ten Seconds After the Gun 58 Rock Wall 59 Following the Red Hills home 60...

Johnson, Vivian Kathleen

2008-01-01T23:59:59.000Z

155

As Sequences Flow: Proposal of Organizational Rules for `Lean Construction'Management Proceedings IGLC-7 399  

E-Print Network (OSTI)

and efficiency, unless new organizational strategies are developed. On one hand, these must be capableAs Sequences Flow: Proposal of Organizational Rules for `Lean Construction'Management Proceedings IGLC-7 399 AS SEQUENCES FLOW: PROPOSAL OF ORGANIZATIONAL RULES FOR `LEAN CONSTRUCTION

Tommelein, Iris D.

156

Applicability of Logistics Management in Lean Construction: a Case Study Approach in Brazilian Building Companies  

E-Print Network (OSTI)

Applicability of Logistics Management in Lean Construction: a Case Study Approach in Brazilian Building Companies Proceedings IGLC-7 147 APPLICABILITY OF LOGISTICS MANAGEMENT IN LEAN CONSTRUCTION Cardoso2 ABSTRACT Logistics management concepts and tools currently have a great value for several

Tommelein, Iris D.

157

Learning How to Learn Lean Construction Concepts and Principles Proceedings IGLC-7 411  

E-Print Network (OSTI)

on adult education and organizational learning. Some approaches to improve learning processes on Lean organizational learning, and experimentation with action and reflection on action. KEY WORDS Concepts, lean construction, learning, organizational learning. 1 MSc, Senior Lecturer at Universidade Estadual de Londrina

Tommelein, Iris D.

158

Actinide Burning in CANDU Reactors  

SciTech Connect

Actinide burning in CANDU reactors has been studied as a method of reducing the actinide content of spent nuclear fuel from light water reactors, and thereby decreasing the associated long term decay heat load. In this work simulations were performed of actinides mixed with natural uranium to form a mixed oxide (MOX) fuel, and also mixed with silicon carbide to form an inert matrix (IMF) fuel. Both of these fuels were taken to a higher burnup than has previously been studied. The total transuranic element destruction calculated was 40% for the MOX fuel and 71% for the IMF. (authors)

Hyland, B.; Dyck, G.R. [Atomic Energy of Canada Limited, Chalk River, Ontario, K0J 1J0 (Canada)

2007-07-01T23:59:59.000Z

159

Gasoline Ultra Fuel Efficient Vehicle  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Principal Investigator 13MY11 2011 DOE Vehicle Technologies Review Gasoline Ultra Fuel Efficient Vehicle ACE064 "This presentation does not contain any proprietary,...

160

Evaluation of synthetic-fuel character effects on rich-lean stationary gas-turbine combustion systems. Volume 2. Full-scale test program. Final report  

SciTech Connect

The effect of burner geometric scale on the emissions and performance produced by staged, rich lean combustors was investigated. Tests were conducted using a 25-cm diameter burner and the results obtained were compared with results previously obtained using a similar, but smaller (12.5-cm diameter) burner. The larger burner employed a convectively-cooled rich-burn section; the size of the burner is the size of the burner cans employed in the 25 Megawatt FT4 industrial gas turbine. Scale effects are of concern in staged rich/lean combustors because of the suspected critical importance of quench air jet penetration and fuel injector spray distribution, both processes being scaled dependent. Tests were conducted both with No. 2 petroleum distillate and with a nitrogen-bearing, middle-distillate synthetic fuel produced by the H-Coal process. Measurements of burner exit temperature profile, liner temperature, gaseous emission, and smoke emissions are presented and the results compared with subscale test results.

Kennedy, J.B.; McVey, J.B.; Rosfjord, T.J.; Russel, P.; Beal, G.

1983-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Excision and Skin Grafting of Thermal Burns  

Science Journals Connector (OSTI)

...such as loss of hand function or facial deformity. There are often psychological sequelae in burned patients, including post-traumatic stress disorder and depression. Pathophysiology and the Effect of Therapy. The pathophysiology of thermal injury is related to the initial distribution of heat within... A 45-year-old man presents with extensive burns after a house fire. Excision and grafting are recommended for management of his burns. Depending on the depth and extent of the burn, early excision and grafting promote wound healing, reduce the risk of infection, and shorten hospitalization but increase the need for blood transfusion, as compared with conservative management.

Orgill D.P.

2009-02-26T23:59:59.000Z

162

Pollution by cereal waste burning in Spain  

Science Journals Connector (OSTI)

In this paper, the amount of cereal waste burned in Spain, which represents the most important source of biomass burning in this country, is estimated. During the period between 1980 and 1998, an average mass of 8 Tg of cereal waste was burned annually, with remaining 1 Tg of ash on the cereal fields after combustion. By using emission factors previously calculated by Ortiz de Zárate et al. [Ortiz de Zárate, I., Ezcurra, A., Lacaux, J.P., Van Dihn, P., 2000. Emission factor estimates of cereal waste burning in Spain. Atmos. Environ. 34, 3183–3193.], it is deduced that pollutant emissions linked to cereal waste-burning process reach values of 11 Tg CO2, 80 Gg of TPM and 23 Gg of \\{NOx\\} year?1 during the cereal-burning period. These emissions represent 46% of total CO2 and 23% \\{NOx\\} emitted in Spain during the burning period that lasts 1 month after harvesting. Therefore, the relative importance of cereal waste burning as pollutant source in Spain almost during fire period becomes evident. Finally, our study allows to deduce that the production of 1 kg of cereal crop implies that 410 g of carbon and 3.3 g of nitrogen are going to be introduced into the atmosphere by this pollutant process. We estimate a total gaseous emission of 3.3 Tg of C and 25 Gg N as different pollutants by cereal waste burning.

I. Ortiz de Zárate; A. Ezcurra; J.P. Lacaux; P. Van Dinh; J. Díaz de Argandoña

2005-01-01T23:59:59.000Z

163

Burn site groundwater interim measures work plan.  

SciTech Connect

This Work Plan identifies and outlines interim measures to address nitrate contamination in groundwater at the Burn Site, Sandia National Laboratories/New Mexico. The New Mexico Environment Department has required implementation of interim measures for nitrate-contaminated groundwater at the Burn Site. The purpose of interim measures is to prevent human or environmental exposure to nitrate-contaminated groundwater originating from the Burn Site. This Work Plan details a summary of current information about the Burn Site, interim measures activities for stabilization, and project management responsibilities to accomplish this purpose.

Witt, Jonathan L. (North Wind, Inc., Idaho Falls, ID); Hall, Kevin A. (North Wind, Inc., Idaho Falls, ID)

2005-05-01T23:59:59.000Z

164

Uniform-burning matrix burner  

DOE Patents (OSTI)

Computer simulation was used in the development of an inward-burning, radial matrix gas burner and heat pipe heat exchanger. The burner and exchanger can be used to heat a Stirling engine on cloudy days when a solar dish, the normal source of heat, cannot be used. Geometrical requirements of the application forced the use of the inward burning approach, which presents difficulty in achieving a good flow distribution and air/fuel mixing. The present invention solved the problem by providing a plenum with just the right properties, which include good flow distribution and good air/fuel mixing with minimum residence time. CFD simulations were also used to help design the primary heat exchanger needed for this application which includes a plurality of pins emanating from the heat pipe. The system uses multiple inlet ports, an extended distance from the fuel inlet to the burner matrix, flow divider vanes, and a ring-shaped, porous grid to obtain a high-temperature uniform-heat radial burner. Ideal applications include dish/Stirling engines, steam reforming of hydrocarbons, glass working, and any process requiring high temperature heating of the outside surface of a cylindrical surface.

Bohn, Mark S. (Golden, CO); Anselmo, Mark (Arvada, CO)

2001-01-01T23:59:59.000Z

165

PHYSICS OF BURNING PHYSICS INACCESSIBLE TO  

E-Print Network (OSTI)

PHYSICS OF BURNING PLASMAS: PHYSICS INACCESSIBLE TO PRESENT FACILITIES FIRE Physics Workshop May 2000 F. Perkins and N. Sauthoff Princeton Plasma Physics Laboratory FIRE Workshop 1 May 2000 #12;OUTLINE · Introduction · Three Classes of Burning Plasma Physics inaccessable to contemporary tokamak

166

Philadelphians protest ocean burning of waste  

Science Journals Connector (OSTI)

Philadelphians protest ocean burning of waste ... A raucous, hostile crowd of Philadelphia residents shouted down Environmental Protection Agency officials last week at a public hearing on the agency's tentative decision to issue a research permit for an ocean burn of chemical wastes. ...

1986-01-20T23:59:59.000Z

167

The Energy Institute Live Green, Burn Clean  

E-Print Network (OSTI)

combustion in a Cummins ISB 5.9L MY2000 turbodiesel engine Sources of the "Biodiesel NOx" effect Fuel quality turbodiesel engine Sources of the "Biodiesel NOx" effect Fuel quality issues and blending level question: B2The Energy Institute Live Green, Burn Clean: Advancing Engines for Renewable Fuels Live Green, Burn

Lee, Dongwon

168

Fuel to Burn: Economics of Converting Forest  

E-Print Network (OSTI)

Fuel to Burn: Economics of Converting Forest Thinnings to Energy Using BioMax in Southern Oregon E a small-scale (100-kW) BioMax without a subsidy or tax credit, even if fuel were delivered to the plant; Christensen, Glenn. 2005. Fuel to burn: Economics of converting forest thinnings to energy using Bio

Fried, Jeremy S.

169

How the Lean Management System is Working on a Closure Project - 13242  

SciTech Connect

Washington Closure Hanford, LLC (WCH) manages the River Corridor Closure Project (RCCP), a 10-year contract, in which WCH will clean up 220 mi{sup 2} of contaminated land at the Hanford Site in Richland, Washington. Strategic planning sessions in 2009 identified key performance areas that were essential to closure and in which focused change could result in dramatic performance improvement. Lean Management Systems (Lean) was selected as the methodology to achieve the desired results. The Lean Process is built upon the fundamentals of the power of respect for people and the practice of continuous process improvement. Lean uses week-long, focused sessions that teach a selected team the techniques to recognize waste within their own work processes, propose potential solutions, and then conduct experiments during the week to test their solutions. In 2011, the Lean process was implemented in the Waste Operations organization. From there it was expanded to closure documents, field remediation, and decommissioning and demolition. WCH identified the following Lean focus areas: 1) closure document processes that required extensive internal preparation, and lengthy external review and approval cycles; 2) allocation of limited transportation and waste disposal resources to meet aggressive remediation schedules; 3) effective start-of-the-day routines in field operations; 4) improved excavation and load-out processes; and 5) approaches to strengthen safety culture and support disciplined operations. Since the introduction of Lean, RCCP has realized many successes and also gained some unexpected benefits. (authors)

Mowery, Carol [Washington Closure Hanford, 2620 Fermi, Richland, Washington, 99354 (United States)] [Washington Closure Hanford, 2620 Fermi, Richland, Washington, 99354 (United States)

2013-07-01T23:59:59.000Z

170

Reduction in biomass burning aerosol light absorption upon humidificat...  

NLE Websites -- All DOE Office Websites (Extended Search)

in biomass burning aerosol light absorption upon humidification: Roles of inorganically-induced hygroscopicity, Reduction in biomass burning aerosol light absorption upon...

171

Ultra Supercritical Steamside Oxidation  

SciTech Connect

Ultra supercritical (USC) power plants offer the promise of higher efficiencies and lower emissions, which are goals of the U.S. Department of Energy's Advanced Power Systems Initiatives. Most current coal power plants in the U.S. operate at a maximum steam temperature of 538 C. However, new supercritical plants worldwide are being brought into service with steam temperatures of up to 620 C. Current Advanced Power Systems goals include coal generation at 60% efficiency, which require steam temperatures of up to 760 C. This research examines the steamside oxidation of advanced alloys for use in USC systems, with emphasis placed on alloys for high- and intermediate-pressure turbine sections. Initial results of this research are presented.

Holcomb, Gordon R.; Cramer, Stephen D.; Covino, Bernard S., Jr.; Bullard, Sophie J.; Ziomek-Moroz, Malgorzata

2005-01-01T23:59:59.000Z

172

Dr B Gail McLean | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

B Gail McLean B Gail McLean Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Staff Listings/Contact Information What's New Research Areas Scientific Highlights Reports & Activities Principal Investigators' Meetings BES Home Staff Listings/Contact Information Dr. B Gail McLean Print Text Size: A A A RSS Feeds FeedbackShare Page Team Lead Photochemistry and Biochemistry Program Manager Photosynthetic Systems Office of Basic Energy Sciences SC-22.1/Germantown Building U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585-1290 E-Mail:gail.mclean@science.doe.gov Phone: (301) 903-7807 Fax: (301) 903-0271 Dr. Gail McLean is Lead for the Photochemistry and Biochemistry Team in the Chemical Sciences, Geosciences, and Biosciences Division of the Office of

173

Letterkenny Army Depot: The Army Teaches Business a Lesson in Lean Six Sigma  

E-Print Network (OSTI)

Letterkenny Army Depot: The Army Teaches Business a Lesson in Lean Six Sigma is a case study of Letterkenny Army Depot, one of five Army maintenance depots. Letterkenny recapitalizes missiles, HMMWV's, generators, and other ...

Harvey, Roger K.

2006-05-23T23:59:59.000Z

174

Relationships between organizational performance and change factors and manufacturing firms' leanness.  

E-Print Network (OSTI)

??The purpose of this non-experimental research study was to examine relationships between organizational performance and change (OP&C) factors and the perceived leanness and objective performance… (more)

Stone, Kyle Bradley

2010-01-01T23:59:59.000Z

175

A design strategy applied to sulfur resistant lean NOx̳ automotive catalysts  

E-Print Network (OSTI)

Catalyst poisoning due to sulfur compounds derived from fuel sulfur presents a major challenge, intractable thus far, to development of many advanced technologies for automotive catalysts such as the lean NOx, trap. Under ...

Tang, Hairong

2005-01-01T23:59:59.000Z

176

Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts  

Energy.gov (U.S. Department of Energy (DOE))

Presents latest progress in the development of a new type of lean NOx trapping catalyst based on heterogenous composite nanowires, which could potentially be used in gasoline and diesel engines.

177

Fuel Effects on a Low-Swirl Injector for Lean Premixed Gas Turbines  

E-Print Network (OSTI)

of Engineering for Gas Turbines and Power-Transactions ofInjector for Lean Premixed Gas Turbines D. Littlejohn and R.11. IC ENGINE AND GAS TURBINE COMBUSTION SHORT TITLE: Fuel

Littlejohn, David

2008-01-01T23:59:59.000Z

178

Development of a process for continuous creation of lean value in product development organizations  

E-Print Network (OSTI)

Ideas and methodologies of lean product development were developed into tools and processes that help product development organizations improve their performances. The definition of waste in product development processes ...

Kato, Jin

2005-01-01T23:59:59.000Z

179

Lean Enterprise Self-Assessment Tool (LESAT) Version 1.0  

E-Print Network (OSTI)

The LESAT Development Team solicited input from a wide variety of LAI consortium members to determine the set of factors considered most important in transitioning to a lean enterprise. The team determined an overarching ...

Lean Advancement Initiative

180

United States Air Force Air Logistics Centers : lean enterprise transformation and associated capabilities  

E-Print Network (OSTI)

Lean enterprise transformation entails a complementary set of initiatives and efforts executed over a substantial period of time, in a consistent and coordinated manner, at all levels of the enterprise. It builds upon ...

Cohen, Jessica L. (Jessica Lauren)

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Comparative Investigation of Blade Lean Effect in Hydrogen?Fueled Combustion Turbine  

Science Journals Connector (OSTI)

Recently environmental problems have been actively researched all over the world. To overcome air pollution and fossil fuel exhaustion we have been investigating a hydrogen?fueled propulsion system. In the system hydrogen is injected from the turbine blade and/or vane surface. The system can realize higher power lighter weight and lower emission than conventional systems. However there exist many problems for the realization. One of them is the extremely high temperature region appearing on the wall. In the present study we clarify the effect of blade lean on the generation of high temperature region. The combusting turbulent flowfield around a normal a compound lean and a reverse compound lean blades are simulated using RANS and 5?step reduced combustion model. Comparing the numerical results it is confirmed that compound lean is promising to suppress the high temperature region.

R. Nakamura; M. Suzuki; M. Yamamoto

2011-01-01T23:59:59.000Z

182

Combining Low-Temperature Combustion with Lean-NOx Trap Yields...  

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

and Posters 2005deerhuff.pdf More Documents & Publications Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study on Sulfur Effects Reductant Utilization in a LNT + SCR...

183

Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study on Sulfur Effects Jim Parks (parksjeii@ornl.gov), Matt Swartz, Shean Huff, Brian West Oak Ridge National Laboratory...

184

Mature weights and lean maturing patterns of diverse breedtypes of cattle  

E-Print Network (OSTI)

MATURE WEIGHTS AND LEAN MATURING PATTERNS OF DIVERSE BREEDTYPES OF CATTLE A Thesis by MOHAMMAD HASAN RAJAB Submitted to the Graduate College of Texas ABM University in partial fulfullment of the requirement for the degree of MASTER... OF SCIENCE May 1983 Major Subject: Animal Breeding MATURE WEIGHTS AND LEAN MATURING PATTERNS OF DIVERSE BREEDTYPES OF CATTLE A Thesis by MOHAMMAD HASAN RAJAB Approved as to style and content by: (Co-Chairman of Committee) Gerald M. Smith (Co...

Rajab, Mohammad Hasan

1983-01-01T23:59:59.000Z

185

Army urged to resume burning chemical arms  

Science Journals Connector (OSTI)

Army urged to resume burning chemical arms ... Under baseline, the weapon is disassembled into four components—the chemical agent, energetic materials, metal parts, and dunnage (waste)—with each incinerated separately. ...

1994-02-14T23:59:59.000Z

186

Wood-Burning Heating System Deduction  

Energy.gov (U.S. Department of Energy (DOE))

This statute allows individual taxpayers a deduction for the purchase and installation of a wood-burning heating system. The deduction is equal to the total cost of purchase and installation for...

187

Global observations of desert dust and biomass burning aerosols  

E-Print Network (OSTI)

Global observations of desert dust and biomass burning aerosols Martin de Graaf KNMI #12; Outline · Absorbing Aerosol Index - Theory · Absorbing Aerosol Index - Reality · Biomass burning.6 Biomass burning over Angola, 09 Sep. 2004 Absorbing Aerosol Index PMD image #12;biomass burning ocean

Graaf, Martin de

188

Treatment of a severe alkali burn  

Science Journals Connector (OSTI)

The case history of a 20-year-old male patient who sustained an 85 per cent total body surface area alkali burn to his skin, after falling into a caustic lime pit, is reported. Considerable problems regarding the correct estimate of burn wound depth, predominant location of the deepest burn on the posterior half of the body, appropriate wound coverage, and lack of sufficient skin graft donor sites required a complex treatment plan. Excisions to fascia and intradermal debridement were required to achieve an appropriate bed for wound closure. Five per cent mafenide acetate solution (Sulfamylon) was applied to prevent burn wound sepsis. Human allografts and Biobrane were used extensively to achieve temporary wound closure, to provide mechanical protection of freshly autografted wounds, and to prevent desiccation following application of cultured epidermal autografts on to debrided wounds and split thickness skin grafted donor sites. The case illustrates a number of problems associated with the evaluation and treatment of patients suffering severe alkali burns, and demonstrates the implementation of both established and evolving technologies in the management of these injuries.

D. Erdmann; J. Hussmann; J.O. Kucan

1996-01-01T23:59:59.000Z

189

Ultra-Deepwater Advisory Committee  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra-Deepwater Advisory Committee Ultra-Deepwater Advisory Committee Minutes of Meeting of June 21, 2007 Crystal City Marriott, Arlington, VA Executive Session Bill Hochheiser, the Committee Management Officer (CMO), welcomed the Ultra- Deepwater Advisory Committee (hereafter referred to as the Committee) at 8:35 a.m. on June 21, 2007. Bill noted that he shared the CMO responsibilities with Elena Melchert but, although she was not able to attend the meeting, she sent her regards to the Committee members. The Agenda for the meeting and Committee Member Sign-in sheet are provided as Appendix 1 and Appendix 2, respectively. After appointment and administration of Oath of Office for special Government employees, the Committee was briefed on conflict of interest statutes and the

190

Paradigm Shift: Burning Coal to Geothermal  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Paradigm Shift: Burning Coal Paradigm Shift: Burning Coal to Geothermal" November 20, 2012 jlowe@bsu.edu 765.285.2805 Ball State University Ball State University Administration Building 1899 Ball State 1920s Ball State University Ball State University (4) Coal Fired Boilers Installed 1941/1955 (3) Natural Gas Fired Boilers Installed in the 1970s Heat and Chilled Water Plant Operations Heat Plant: 4 Coal Fired Boilers 3 Natural Gas Fired Boilers 320,000 Lbs/Hr nameplate 240,000 Lbs/Hr current 700,000,000 Lbs/Year Chilled Water Plant: 5 Electrical Centrifugal Chillers 9,300 ton capacity 25,000,000 Ton Hours/Year Pollutants Produced from Burning 36,000 tons of Coal * Carbon Dioxide 85,000 tons (Global Warming)

191

Evaluating greenhouse gas emissions inventories for agricultural burning using satellite observations of active fires  

E-Print Network (OSTI)

Regulation of agricultural waste burning occurs at multipleexample, agricultural waste burning is managed by individualalso take agricultural waste- burning emissions into

Lin, Hsiao-Wen; Jin, Yufang; Giglio, Louis; Foley, Jonathan A; Randerson, James T

2012-01-01T23:59:59.000Z

192

Do biomass burning aerosols intensify drought in equatorial Asia during El Niño?  

E-Print Network (OSTI)

fication of drought-induced biomass burning in Indonesiavariability in global biomass burning emissions from 1997 toChemistry and Physics Do biomass burning aerosols intensify

Tosca, M. G; Randerson, J. T; Zender, C. S; Flanner, M. G; Rasch, P. J

2010-01-01T23:59:59.000Z

193

Biomass burning contribution to black carbon in the Western United States Mountain Ranges  

E-Print Network (OSTI)

and the atmosphere from biomass burning, Climatic Change, 2,Chemistry and Physics Biomass burning contribution to black2011 Y. H. Mao et al. : Biomass burning contribution to

2011-01-01T23:59:59.000Z

194

Biomass burning and urban air pollution over the Central Mexican Plateau  

E-Print Network (OSTI)

J. D. Crounse et al. : Biomass burning pollution overChemistry and Physics Biomass burning and urban airprimary anthropogenic and biomass burning organic aerosols

2009-01-01T23:59:59.000Z

195

Diesel de Azufre Ultra Bajo  

NLE Websites -- All DOE Office Websites (Extended Search)

Diesel de Azufre Ultra Bajo Diesel de Azufre Ultra Bajo ULSD LSD Off-Road Diesel para Carretera de Azufre Ultra Bajo (máximo de 15 ppm de azufre). Se requiere su uso en todos los motores y vehículos diesel de carretera modelos 2007 y posteriores. También se recomienda su uso en todos los vehículos y motores diesel. Diesel para Carretera Bajo en Azufre (máximo de 500 ppm de azufre). Aviso: La ley federal prohíbe su uso en vehículos y motores modelos 2007 y posteriores, su uso podría dañarlos. Combustible Diesel que no es para Carretera (puede exceder 500 ppm de azufre). Aviso: La ley federal prohíbe su uso en vehículos y motores que no son de carretera, su uso podría dañarlos. Los consumidores con vehículos modelo 2007 ó posteriores deben utilizar solo diesel ultra bajo de azufre (ULSD). El ULSD es un diesel de

196

Ultra High Energy Cosmic Rays  

Science Journals Connector (OSTI)

We discuss briefly the phenomenon of the Ultra High Energy Cosmic Rays (UHECR) particles of energy approaching and exceeding 1011 GeV. The world experimental statistics contains a small number of events but their existence is a puzzle. Its solution may lead to exciting discoveries in high energy particle astrophysics as well as in particle physics and astronomy.

Todor Stanev

2004-01-01T23:59:59.000Z

197

Ultra-wideband digital baseband  

E-Print Network (OSTI)

The FCC approved the use of Ultra-wideband signals for communication purposes in February 2002 in the band from 3.1GHz to 10.6GHz, effectively opening 7.5GHz of free unlicensed bandwidth. There are two main constraints for ...

Blázquez-Fernández, Raúl, 1975-

2006-01-01T23:59:59.000Z

198

ASSESSMENTOF BURNING-PLASMA PHENOMENA COMPACTIGNITION TOKAMAK  

E-Print Network (OSTI)

Report+ on ASSESSMENTOF BURNING-PLASMA PHENOMENA . in a COMPACTIGNITION TOKAMAK presented-coil tokamak configurations that would achieve ignition under presently accepted scaling laws. Studies the extent to which these compact tokamak ignition experiments can resolve the technical issue of under

199

First Sustained Burning Plasma. Starts in 2019.  

E-Print Network (OSTI)

-T fusion power density is approximated by: Plasma pressure in atmospheres We need >1MWm-3 for an economic system -- need a few Atmospheres of plasma pressure. Can we hold it with a magnetic field? MagneticITER JET (to scale) JET (to scale) First Sustained Burning Plasma. Starts in 2019. BASIC PARAMETERS

200

THE BURNING OF BIOMASS Economy, Environment, Health  

E-Print Network (OSTI)

THE BURNING OF BIOMASS Economy, Environment, Health Kees Kolff, MD, MPH April 21, 2012 #12;OUR TRUCKS OF BIOMASS/ DAY (Currently 82) #12;BAD FOR THE ECONOMY · Taxpayers will pay 50% - tax credits, etc · Not a cogen project so only 25% efficient · Biomass better for biofuels, not electricity · MILL JOBS

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

U S Burning Plasma Organization:U.S. Burning Plasma Organization: Supporting US Scientific Contributions to  

E-Print Network (OSTI)

Community (TTF,...) US Technology Community · USBPO mission is to coordinate US Burning Plasma related research to advance science USBPO Director, Jim Van Dam, also serves as US IPO Chief Scientist, assuring

202

EPA aide wary about burning waste at sea  

Science Journals Connector (OSTI)

EPA aide wary about burning waste at sea ... An Environmental Protection Agency official has cautioned that a proposal by Chemical Waste Management (CWM) to perform a research burn of chemical wastes at sea should be permitted only if stringent conditions are met. ... During 19 days of burns, EPA would conduct research to determine the incinerator emissions' composition, transport, and effect on marine life. ...

1986-05-12T23:59:59.000Z

203

Plasma Materials Interaction Issues For Burning Plasma Experiments  

E-Print Network (OSTI)

Plasma Materials Interaction Issues For Burning Plasma Experiments M. Ulrickson Presented · Introduction to Burning Plasmas · Plasma Materials Interaction Phenomena · Materials Issues · Summary #12;MAU 4 ­ Resistance to neutron damage #12;MAU 5 11/15/2001 The FIRE Burning Plasma Device · A compact high field

204

LAMINAR BURNING VELOCITY OF GASOLINES WITH ADDITION OF ETHANOL  

E-Print Network (OSTI)

1 LAMINAR BURNING VELOCITY OF GASOLINES WITH ADDITION OF ETHANOL P. Dirrenberger1 , P.A. Glaude*1 (2014) 162-169" DOI : 10.1016/j.fuel.2013.07.015 #12;2 LAMINAR BURNING VELOCITY OF GASOLINES, Sweden Abstract The adiabatic laminar burning velocities of a commercial gasoline and of a model fuel (n

Boyer, Edmond

205

Project Recap Lack of a lean system within the purchasing department of Saint-Gobain's PPL  

E-Print Network (OSTI)

Project Recap Lack of a lean system within the purchasing department of Saint-Gobain's PPL getting/examining QAD system reports and cross-department communication. The objective of this project the purchasing department. PSU Consultants have focused on Saint-Gobain's QAD system and communication procedures

Demirel, Melik C.

206

Numerical simulation of Lewis number effects on lean premixed turbulent flames  

E-Print Network (OSTI)

turbulent flames for lean hydrogen, propane and methane mixtures in two dimensions. Each simulation or syngas, obtained from coal gasification, has sparked interest in the development of burners that can for propane, methane and hydrogen using de- tailed chemistry and transport, corresponding to Le > 1, Le 1

207

Lean and Steering Motorcycle Dynamics Reconstruction : An Unknown Input HOSMO Approach  

E-Print Network (OSTI)

Lean and Steering Motorcycle Dynamics Reconstruction : An Unknown Input HOSMO Approach L. Nehaoua1. For this purpose, we consider a unknown input high order sliding mode observer (UIHOSMO). First, a motorcycle- flected by an important increase of motorcycle's fatalities. Recent statistics confirm this fact

Paris-Sud XI, Université de

208

Observer Design for Motorcycle's Lean and Steering Dynamics Estimation: a Takagi-Sugeno Approach  

E-Print Network (OSTI)

Observer Design for Motorcycle's Lean and Steering Dynamics Estimation: a Takagi-Sugeno Approach Dalil Ichalal, Hichem Arioui and Sa¨id Mammar Abstract-- In this paper, a nonlinear motorcycle model]. Development of safety systems for cars has reached a certain maturity. Unfortunately, for motorcycles

Paris-Sud XI, Université de

209

Physical and Chemical Characterization of Particulate and Gas phase Emissions from Biomass Burning  

E-Print Network (OSTI)

of the pile as waste. Waste burning is not permitted in manyagricultural residue/waste burning, residential wood

Hosseini, Seyedehsan

2012-01-01T23:59:59.000Z

210

Impulsive-choice patterns for food in genetically lean and obese Zucker rats  

Science Journals Connector (OSTI)

Behavioral-economic studies have shown that differences between lean and obese Zuckers in food consumption depend on the response requirement for food. Since a response requirement inherently increases the delay to reinforcement, differences in sensitivity to delay may also be a relevant mechanism of food consumption in the obese Zucker rat. Furthermore, the endocannabinoid neurotransmitter system has been implicated in impulsivity, but studies that attempt to characterize the effects of cannabinoid drugs (e.g., rimonabant) on impulsive choice may be limited by floor effects. The present study aimed to characterize impulsive-choice patterns for sucrose using an adjusting-delay procedure in genetically lean and obese Zuckers. Ten lean and ten obese Zucker rats chose between one lever that resulted in one pellet after a standard delay (either 1 s or 5 s) and a second lever that resulted in two or three pellets after an adjusting delay. After behavior stabilized under baseline, rimonabant (0–10 mg/kg) was administered prior to some choice sessions in the two-pellet condition. Under baseline, obese Zuckers made more impulsive choices than leans in three of the four standard-delay/pellet conditions. Additionally, in the 2-pellet condition, rimonabant increased impulsive choice in lean rats in the 1-s standard-delay condition; however, rimonabant decreased impulsive choice in obese rats in the 1-s and 5-s standard-delay conditions. These data suggest that genetic factors that influence impulsive choice are stronger in some choice conditions than others, and that the endocannabinoid system may be a relevant neuromechanism.

Steven R. Boomhower; Erin B. Rasmussen; Tiffany S. Doherty

2013-01-01T23:59:59.000Z

211

Conversion of lean oil absorption process to extraction process for conditioning natural gas  

SciTech Connect

In an absorption process for the removal of C/sub 2/+ hydrocarbons from a natural gas stream by absorbing the C/sub 2/+ hydrocarbons with a lean oil to produce a residue gas stream of pipeline quality and a rich oil from which the C/sub 2/+ hydrocarbons are recovered, this patent describes the improvement which comprises providing the capability, of selectively extracting the C/sub 2/+ hydrocarbons from the gas stream with a lean preferential physical solvent according to the maximum recoveries and to the selected degrees of (a) ethane in amounts ranging up to 95%, (b) propane in amounts ranging up to 100%, (c) butane in amounts ranging up to 100%, or (d) pentanes and higher molecular weight hydrocarbons in amounts ranging up to 100% by: A. selecting an absorber plant, which is used for recovering maximum quantities of the C/sub 2/+ hydrocarbons from the gas stream while using lean oils as solvent for the C/sub 2/+ hydrocarbons; B. selecting a preferential physical solvent which is selective for ethane and heavier hydrocarbon components of the gas stream ; C. replacing the oils in the selected absorber plant with a selected volume of the selected preferential physical solvent; and D. while using the equipment in extraction mode, contacting the gas stream with the lean preferential physical solvent at a selected flow rate within the range of 0.001-0.5 gallon of lean solvent per standard cubic foot of the gas stream to produce a residue gas stream of pipeline specifications and a rich solvent stream containing the ethane and heavier hydrocarbon components.

Mehra, Y.R.

1987-09-29T23:59:59.000Z

212

Impact of Trash Burning on Air Quality in Mexico City  

Science Journals Connector (OSTI)

designed to simulate waste generated by a "recycling" and a "nonrecycling" family in a 208-L (55-gal) burn barrel at the EPA's Open Burning Test Facility. ... Four test burns were made in which the amt. of waste placed in the barrel varied from 6.4 to 13.6 kg and the amt. ... The results of this study indicate that backyard burning emits more PCDDs/PCDFs on a mass of refuse burned basis than various types of municipal waste combustors (MWCs). ...

A. Hodzic; C. Wiedinmyer; D. Salcedo; J. L. Jimenez

2012-03-29T23:59:59.000Z

213

Ultra High Temperature | Open Energy Information  

Open Energy Info (EERE)

Ultra High Temperature Ultra High Temperature Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: Ultra High Temperature Dictionary.png Ultra High Temperature: No definition has been provided for this term. Add a Definition Sanyal Temp Classification This temperature scheme was developed by Sanyal in 2005 at the request of DOE and GEA, as reported in Classification of Geothermal Systems: A Possible Scheme. Extremely Low Temperature Very Low Temperature Low Temperature Moderate Temperature High Temperature Ultra High Temperature Steam Field Reservoir fluid greater than 300°C is considered by Sanyal to be "ultra high temperature". "Such reservoirs are characterized by rapid development of steam saturation in the reservoir and steam fraction in the mobile fluid phase upon

214

Applying lean thinking to improve the production process of a traditional medium-size British manufacturing company  

Science Journals Connector (OSTI)

A well-organised implementation of lean manufacturing strategy will lead to excellent operations system and continuous improvement through the removal of non-value-added activities. This case study uses value-stream-mapping to investigate non-value-added activities, simply show how lean manufacturing implementation can intelligibility result a framework of improvement. The implementation and improvements will be depicted in the area of lead time, cycle time and quality by applying lean concepts like circle-shape on production line, 5S and Kaizen team on the shop floor of a British medium-size company.

Salman Sigari; Robin Clark

2013-01-01T23:59:59.000Z

215

Emissions of Polychlorinated Dibenzodioxins and Dibenzofurans and Polychlorinated Biphenyls from Uncontrolled Burning of Garden and Domestic Waste (Backyard Burning)  

Science Journals Connector (OSTI)

Straw and plastic (polyethylene) film used for wrapping silage were included, since burnings of these wastes on agricultural fields is considered to be one of the most common types of uncontrolled waste combustions in Sweden. ... To obtain fundamental information on dioxin emissions from an open burning 8 wastes which were likely amenable to be burnt wildly or suspected to generate high levels of dioxins were subjected to an open burning simulation in a special adapted furnace. ... designed to simulate waste generated by a "recycling" and a "nonrecycling" family in a 208-L (55-gal) burn barrel at the EPA's Open Burning Test Facility. ...

Björn Hedman; Morgan Näslund; Calle Nilsson; Stellan Marklund

2005-10-13T23:59:59.000Z

216

Polycyclic aromatic hydrocarbons (PAHs) in burning and non-burning coal waste piles  

Science Journals Connector (OSTI)

The coal waste material that results from Douro Coalfield exploitation was analyzed by gas chromatography with mass spectrometry (GC–MS) for the identification and quantification of the 16 polycyclic aromatic hydrocarbons (PAHs), defined as priority pollutants. It is expected that the organic fraction of the coal waste material contains \\{PAHs\\} from petrogenic origin, and also from pyrolytic origin in burning coal waste piles. The results demonstrate some similarity in the studied samples, being phenanthrene the most abundant PAH followed by fluoranthene and pyrene. A petrogenic contribution of \\{PAHs\\} in unburned samples and a mixture of \\{PAHs\\} from petrogenic and pyrolytic sources in the burning/burnt samples were identified. The lowest values of the sum of the 16 priority \\{PAHs\\} found in burning/burnt samples and the depletion LMW \\{PAHs\\} and greater abundance of HMW \\{PAHs\\} from the unburned coal waste material relatively to the burning/burnt material demonstrate the thermal transformation attributed to the burning process. The potential environmental impact associated with the coal waste piles are related with the release of petrogenic and pyrolytic \\{PAHs\\} in particulate and gaseous forms to soils, sediments, groundwater, surface water, and biodiversity.

Joana Ribeiro; Tais Silva; Joao Graciano Mendonca Filho; Deolinda Flores

2012-01-01T23:59:59.000Z

217

ULTRA-DEEP WATER ADVISORY COMMITTEE FINDINGS AND  

Energy Savers (EERE)

ULTRA-DEEP WATER ADVISORY COMMITTEE FINDINGS AND RECOMMENDATIONS 2014 ULTRA-DEEPWATER ADVISORY COMMITTEE COMMITTEE FINDINGS AND RECOMMENDATIONS i Table of Contents Research and...

218

Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum...  

Energy Savers (EERE)

Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program The...

219

Ultra Clean and Efficient Natural Gas Reciprocating Engine for...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra Clean and Efficient Natural Gas Reciprocating Engine for CHP - Presentation by Dresser Waukesha, June 2011 Ultra Clean and Efficient Natural Gas Reciprocating Engine for CHP...

220

Ultra-High Resolution Electron Microscopy for Catalyst Characterizatio...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra-High Resolution Electron Microscopy for Catalyst Characterization Ultra-High Resolution Electron Microscopy for Catalyst Characterization 2011 DOE Hydrogen and Fuel Cells...

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

AVTA: 2010 Honda Civic HEV with Experimental Ultra Lead Acid...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2010 Honda Civic HEV with Experimental Ultra Lead Acid Battery Testing Results AVTA: 2010 Honda Civic HEV with Experimental Ultra Lead Acid Battery Testing Results The Vehicle...

222

Ultra Efficient Combined Heat, Hydrogen, and Power System - Fact...  

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

Ultra Efficient Combined Heat, Hydrogen, and Power System - Fact Sheet, 2011 Ultra Efficient Combined Heat, Hydrogen, and Power System - Fact Sheet, 2011 FuelCell Energy, Inc., in...

223

Ultra Efficient Combined Heat, Hydrogen, and Power System - Presentati...  

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

Ultra Efficient Combined Heat, Hydrogen, and Power System - Presentation by FuelCell Energy, June 2011 Ultra Efficient Combined Heat, Hydrogen, and Power System - Presentation by...

224

A prospect for achieving more efficient combustion of Kuznetsk lean coal in a boiler with dry-ash removal  

Science Journals Connector (OSTI)

A new high-efficient technology for staged combustion of Kuznetsk lean coal in PK-10 boilers with dry-ash removal is proposed, which ... It is expected that more reliable, economically efficient, and environmenta...

A. M. Arkhipov; A. V. Roor

2013-06-01T23:59:59.000Z

225

Ultra-short pulse generator  

DOE Patents (OSTI)

An inexpensive pulse generating circuit is disclosed that generates ultra-short, 200 picosecond, and high voltage 100 kW, pulses suitable for wideband radar and other wideband applications. The circuit implements a nonlinear transmission line with series inductors and variable capacitors coupled to ground made from reverse biased diodes to sharpen and increase the amplitude of a high-voltage power MOSFET driver input pulse until it causes non-destructive transit time breakdown in a final avalanche shock wave diode, which increases and sharpens the pulse even more. 5 figures.

McEwan, T.E.

1993-12-28T23:59:59.000Z

226

Microgap ultra-violet detector  

DOE Patents (OSTI)

A microgap ultra-violet detector of photons with wavelengths less than 400 run (4000 Angstroms) which comprises an anode and a cathode separated by a gas-filled gap and having an electric field placed across the gap. Either the anode or the cathode is semi-transparent to UV light. Upon a UV photon striking the cathode an electron is expelled and accelerated across the gap by the electric field causing interactions with other electrons to create an electron avalanche which contacts the anode. The electron avalanche is detected and converted to an output pulse.

Wuest, Craig R. (Danville, CA); Bionta, Richard M. (Livermore, CA)

1994-01-01T23:59:59.000Z

227

Microgap ultra-violet detector  

DOE Patents (OSTI)

A microgap ultra-violet detector of photons with wavelengths less than 400 run (4,000 Angstroms) which comprises an anode and a cathode separated by a gas-filled gap and having an electric field placed across the gap is disclosed. Either the anode or the cathode is semi-transparent to UV light. Upon a UV photon striking the cathode an electron is expelled and accelerated across the gap by the electric field causing interactions with other electrons to create an electron avalanche which contacts the anode. The electron avalanche is detected and converted to an output pulse. 2 figs.

Wuest, C.R.; Bionta, R.M.

1994-09-20T23:59:59.000Z

228

Ultra-short pulse generator  

DOE Patents (OSTI)

An inexpensive pulse generating circuit is disclosed that generates ultra-short, 200 picosecond, and high voltage 100 kW, pulses suitable for wideband radar and other wideband applications. The circuit implements a nonlinear transmission line with series inductors and variable capacitors coupled to ground made from reverse biased diodes to sharpen and increase the amplitude of a high-voltage power MOSFET driver input pulse until it causes non-destructive transit time breakdown in a final avalanche shockwave diode, which increases and sharpens the pulse even more.

McEwan, Thomas E. (Livermore, CA)

1993-01-01T23:59:59.000Z

229

DeLone & McLean IS Success Model in Evaluating Knowledge Transfer in a Virtual Learning Environment  

Science Journals Connector (OSTI)

DeLone & McLean's success model has been actively used since its first introduction in 1992. In this article, the authors extend this model to describe the success of knowledge sharing in an information system that included a part of the knowledge ... Keywords: Apprenticeship, DeLone & McLean Success Model, Knowledge Management, Knowledge Sharing, Systems Analysis, User Attitudes, Virtual Learning Environment

Raija Halonen; Heli Thomander; Elisa Laukkanen

2010-04-01T23:59:59.000Z

230

Composite model for the anisotropic elastic moduli of lean oil shale  

SciTech Connect

A model to predict the anisotropic elastic moduli of lean oil shale is formulated. Deformation of a homogeneous ellipsoidal inclusion in a host matrix is used as the basis for computing the deformation of the composite. Both inclusions and the host rock are presumed to be separately isotropic. Anisotropy of the composite arises from the nonspherical shape of the kerogen inclusions. Six parameters are needed to quantify the model fully: 2 elastic moduli for the host rock, 2 for the inclusions, the kerogen content, and the inclusion aspect ratio. The model is compared to a set of statically measured elastic moduli. Good agreement with lean oil shale data was found. However, some systematic differences appear in comparison with moduli measured ultrasonically. 20 references.

Rundle, J.B.; Schuler, K.W.

1981-02-01T23:59:59.000Z

231

On-engine evaluation of emission characteristics of a variable geometry lean-premixed combustor  

SciTech Connect

The design and on-engine testing of a lean-premixed, low-NO{sub x} combustor for a simple-cycle, single-shaft, 250-kW gas turbine engine of a pressure ratio of eight are described. A variable-geometry system composed of butterfly air valves was used to control the combustor air split between combustion and dilution. Fuel was staged to a direct-injection pilot burner, and a lean-premixed main burner was fitted to the combustor liner. The NO{sub x} emissions with natural gas fueling were found to be less than 20 ppm (at 5% O{sub 2}) at and near full-load conditions with combustion efficiencies greater than 99.8%. Emissions data from early high-pressure rig tests of the combustor hardware are also presented.

Yamada, H.; Shimodaira, K.; Hayashi, S. [National Aerospace Lab., Tokyo (Japan). Thermofluid Dynamics Div.

1997-01-01T23:59:59.000Z

232

Analytic network process model for sustainable lean and green manufacturing performance indicator  

Science Journals Connector (OSTI)

Sustainable manufacturing is regarded as the most complex manufacturing paradigm to date as it holds the widest scope of requirements. In addition its three major pillars of economic environment and society though distinct have some overlapping among each of its elements. Even though the concept of sustainability is not new the development of the performance indicator still needs a lot of improvement due to its multifaceted nature which requires integrated approach to solve the problem. This paper proposed the best combination of criteria en route a robust sustainable manufacturing performance indicator formation via Analytic Network Process (ANP). The integrated lean green and sustainable ANP model can be used to comprehend the complex decision system of the sustainability assessment. The finding shows that green manufacturing is more sustainable than lean manufacturing. It also illustrates that procurement practice is the most important criteria in the sustainable manufacturing performance indicator.

2014-01-01T23:59:59.000Z

233

Initial Estimates of Mercury Emissions to the Atmosphere from Global Biomass Burning  

Science Journals Connector (OSTI)

Frequently burning grasslands in Africa and Australia, and agricultural waste burning globally, contribute relatively little to the mercury budget. ... Savannas burn frequently (intentionally or by accident), typically annually or biannually, while boreal forest burns at 50?200 year time scales, and wet tropical forests rarely burn at all. ... Total C emissions tracked burning in forested areas (including deforestation fires in the tropics), whereas burned area was largely controlled by savanna fires which responded to different environmental and human factors. ...

H.R. Friedli; A.F. Arellano; S. Cinnirella; N. Pirrone

2009-04-15T23:59:59.000Z

234

Survey instrument to facilitate continuous improvement of lean teaching materials: a first-run study  

E-Print Network (OSTI)

offers full emergency, medical, and surgical services; for five years in a row the facility has been named as one of “America’s 50 best hospitals.” Approximately two months before the start of the workshop, the owner’s representative contacted his most... General Contractors of America. “Lean Construction Education Program,” (April 1, 2012) College of Saint Benedict and Saint John’s University. “The Red/Black Game.”

Rybkowski, Zofia K.; Munankami, Manish; Smith, James P.; Kulkarni, Aditi

2012-07-17T23:59:59.000Z

235

Ultra-Deepwater Production Systems  

SciTech Connect

The report herein is a summary of the work performed on three projects to demonstrate hydrocarbon drilling and production methods applicable to deep and ultra deepwater field developments in the Gulf of Mexico and other like applications around the world. This work advances technology that could lead to more economic development and exploitation of reserves in ultra-deep water or remote areas. The first project is Subsea Processing. Its scope includes a review of the ''state of the art'' in subsea components to enable primary production process functions such as first stage liquids and gas separation, flow boosting, chemical treatment, flow metering, etc. These components are then combined to allow for the elimination of costly surface production facilities at the well site. A number of studies were then performed on proposed field development projects to validate the economic potential of this technology. The second project involved the design and testing of a light weight production riser made of composite material. The proposed design was to meet an actual Gulf of Mexico deepwater development project. The various engineering and testing work is reviewed, including test results. The third project described in this report encompasses the development and testing of a close tolerance liner drilling system, a new technology aimed at reducing deepwater drilling costs. The design and prototype testing in a test well are described in detail.

Ken L. Smith; Marc E. Leveque

2005-05-31T23:59:59.000Z

236

Schoenberg, Chang, Keeley, Pompa, Woods, Xu. Burning Index. 1 RH: Burning index in Los Angeles  

E-Print Network (OSTI)

A Critical Assessment of the Burning Index in Los Angeles County, California Frederic Paik Schoenberg Research Center, Sequoia-Kings Canyon National Parks, Three Rivers, CA 93271. D Department of Ecology and wildfires in Los Angeles County, California from January 1976 to December 2000 reveals that although the BI

Schoenberg, Frederic Paik (Rick)

237

Schoenberg, Chang, Pompa, Woods, Xu. Burning Index. 1 RH: Burning index in Los Angeles  

E-Print Network (OSTI)

Assessment of the Burning Index in Los Angeles County, California Frederic Paik SchoenbergA,E , Chien Research Center, Sequoia-Kings Canyon National Parks, Three Rivers, CA 93271. D Department of Ecology and wildfires in Los Angeles County, California from January 1976 to December 2000 reveals that although the BI

Schoenberg, Frederic Paik (Rick)

238

Life Satisfaction Over the First Five Years Following Burn Injury  

E-Print Network (OSTI)

.......................................................................... 88 1 CHAPTER I INTRODUCTION In the United States, approximately 500,000 individuals present annually for treatment of burns; about 40,000 of whom require hospitalization (Esselman, 2007). These individuals are typically men, ages 20... year after hospitalization is almost universally a time of high distress for individuals with burn injuries (Patterson & Ford, 2000). The psychological distress following burn injury is said to be the “most disabling of secondary complications...

Hoskins, Jessica Lynne

2012-10-19T23:59:59.000Z

239

Veto likely on ocean burning of toxic wastes  

Science Journals Connector (OSTI)

Veto likely on ocean burning of toxic wastes ... Ocean incineration of toxic wastes has been under study for some time, and EPA has authorized test burns as far back as 1974. ... (where more than 6000 people showed up), and Mobile, Ala., where the issues of transporting the waste safely to the burn site and what advantages ocean incineration has over land incineration were hotly debated. ...

1984-04-30T23:59:59.000Z

240

Alkyl Amides and Nitriles as Novel Tracers for Biomass Burning  

Science Journals Connector (OSTI)

Ammonia emissions into the atmosphere have been reported for numerous sources, as for example natural decay in soils, sewage treatment plants, livestock waste, and ammonia-based fertilizers (42, 43). ... Anal. of emissions from the burning of dried tropical grasses and agricultural wastes in a small-scale app. ... under the smoldering conditions of residential wood combustion, as compared to the active burning of forest fires and slash burns, incomplete combustion resulted in the preservation of high levels of the natural products. ...

Bernd R. T. Simoneit; A. I. Rushdi; M. R. bin Abas; B. M. Didyk

2002-11-23T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Fly ash utilization in McLean County, North Dakota. Topical report, Task 7.25  

SciTech Connect

In 1989, the McLean County Commissioners requested assistance from personnel at the University of North Dakota Energy and Environmental Research Center (EERC) with the construction of a section of road and a boat ramp in their county. Assistance was sought from the EERC because the county`s construction plans called for partial replacement of the lime and portland cement normally used for soil stabilization with fly ash. Since the EERC had recently conducted several research projects dealing with the use of coal combustion by-products for road construction, the commissioners requested that EERC personnel help to determine appropriate formulas for the stabilized soil mixtures to be used for both the road and boat ramp applications. An additional incentive was provided when the management of the Coal Creek Power Plant offered to donate the necessary fly ash at no cost. This project was performed as a joint venture between McLean County and the EERC. The EERC was primarily responsible for conducting a laboratory testing program to develop soil stabilization mixtures for the two construction activities. These mixtures were to contain a relatively high percentage of fly ash and to exhibit sufficient strength and durability so that the road and boat ramp would both have a service life of 20 years or more. McLean County would be primarily responsible for the road and boat ramp construction activities. The funding for the EERC portion of the project was provided by the US Department of Energy through a joint venture support program.

Moretti, C.J.

1993-03-01T23:59:59.000Z

242

Microsoft Word - Deep-Burn awards news release _2_.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Department of Energy announced it has selected teams led by Idaho National Laboratory and Argonne National Laboratory to advance the technology of nuclear fuel "Deep-Burn," in...

243

Geopolymeric Agent for Immobilization of Radioactive Ashes after Biomass Burning  

Science Journals Connector (OSTI)

Solidification of low-level radioactive wastes obtained after biomass burning was studied. Two solidification modes using Portland...- 6 g cm- 2 day- 1.... Thus, su...

A. D. Chervonnyi; N. A. Chervonnaya

2003-03-01T23:59:59.000Z

244

Reflective Terahertz Imaging for early diagnosis of skin burn severity  

E-Print Network (OSTI)

the brand area is also visualized in the THz images of thebrand shape is discernible as early as the post burn THz image.

TEWARI, PRIYAMVADA

2013-01-01T23:59:59.000Z

245

Emissions from Open Burning of Simulated Military Waste from Forward Operating Bases  

Science Journals Connector (OSTI)

Emissions from two different burning scenarios, so-called “burn piles/pits” and an air curtain burner/“burn box”, were compared using simulated FOB waste from municipal and commercial sources. ... Aerial- and ground-sampled emissions from three prescribed forest burns in the southeastern U.S. were compared to emissions from laboratory open burn tests using biomass from the same locations. ...

Johanna Aurell; Brian K. Gullett; Dirk Yamamoto

2012-09-19T23:59:59.000Z

246

Ultra-wideband directional sampler  

DOE Patents (OSTI)

The Ultra-Wideband (UWB) Directional Sampler is a four port device that combines the function of a directional coupler with a high speed sampler. Two of the four ports operate at a high sub-nanosecond speed, in "real time", and the other two ports operate at a slow millisecond-speed, in "equivalent time". A signal flowing inbound to either of the high speed ports is sampled and coupled, in equivalent time, to the adjacent equivalent time port while being isolated from the opposite equivalent time port. A primary application is for a time domain reflectometry (TDR) situation where the reflected pulse returns while the outbound pulse is still being transmitted, such as when the reflecting discontinuity is very close to the TDR apparatus.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

247

Ultra-cold molecule production.  

SciTech Connect

The production of Ultra-cold molecules is a goal of many laboratories through out the world. Here we are pursuing a unique technique that utilizes the kinematics of atomic and molecular collisions to achieve the goal of producing substantial numbers of sub Kelvin molecules confined in a trap. Here a trap is defined as an apparatus that spatially localizes, in a known location in the laboratory, a sample of molecules whose temperature is below one degree absolute Kelvin. Further, the storage time for the molecules must be sufficient to measure and possibly further cool the molecules. We utilize a technique unique to Sandia to form cold molecules from near mass degenerate collisions between atoms and molecules. This report describes the progress we have made using this novel technique and the further progress towards trapping molecules we have cooled.

Ramirez-Serrano, Jamie; Chandler, David W.; Strecker, Kevin; Rahn, Larry A.

2005-12-01T23:59:59.000Z

248

Ultra-wideband directional sampler  

DOE Patents (OSTI)

The Ultra-Wideband (UWB) Directional Sampler is a four port device that combines the function of a directional coupler with a high speed sampler. Two of the four ports operate at a high sub-nanosecond speed, in ``real time``, and the other two ports operate at a slow millisecond-speed, in ``equivalent time``. A signal flowing inbound to either of the high speed ports is sampled and coupled, in equivalent time, to the adjacent equivalent time port while being isolated from the opposite equivalent time port. A primary application is for a time domain reflectometry (TDR) situation where the reflected pulse returns while the outbound pulse is still being transmitted, such as when the reflecting discontinuity is very close to the TDR apparatus. 3 figs.

McEwan, T.E.

1996-05-14T23:59:59.000Z

249

Tropical biomass burning smoke plume size, shape, reflectance, and age based on 2001â??2009 MISR imagery of Borneo  

E-Print Network (OSTI)

C. S. Zender et al. : Tropical biomass burning smoke plumeslaboratory measurements of biomass-burning emis- sions: 1.aerosol optical depth biomass burning events: a comparison

Zender, C. S; Krolewski, A. G; Tosca, M. G; Randerson, J. T

2012-01-01T23:59:59.000Z

250

Analysis of Tracer Dispersion During a Prescribed Forest Burn  

E-Print Network (OSTI)

become a method to manage forest health, while preventing uncontrolled wild land fire. Low intensity, prescribed burns release less carbon dioxide than wildfires of the same size and may be used as a strategy. The ultimate goal of the project is to use the data from the burn, along with modeling techniques to improve

Collins, Gary S.

251

UNCORRECTED 2 Burning biodiversity: Woody biomass use by commercial  

E-Print Network (OSTI)

UNCORRECTED PROOF 2 Burning biodiversity: Woody biomass use by commercial 3 and subsistence groups Biodiversity Science, Conservation International, 1919 M St., Washington, DC 20036, USA 7 c Energy as: Lisa Naughton-Treves et al., Burning biodiversity: Woody biomass use by commercial

Kammen, Daniel M.

252

Prioritizing Burn-Injured Patients During a Disaster  

Science Journals Connector (OSTI)

The U.S. government has mandated that, in a catastrophic event, metropolitan areas need to be capable of caring for 50 burn-injured patients per million population. In New York City, this corresponds to 400 patients. There are currently 140 burn beds ... Keywords: disaster planning, healthcare, triage

Carri W. Chan; Linda V. Green; Yina Lu; Nicole Leahy; Roger Yurt

2013-04-01T23:59:59.000Z

253

Stellar Burning Falk Herwig, Alexander Heger, and Frank  

E-Print Network (OSTI)

]. In these objects, a thermonuclear runaway of the helium shell on top of an electron-degenerate core (a young White implications for the production of neutron- rich elements. log Tlog Teffeff Figure 1-- A thermonuclear runaway stellar conditions. We will include a stellar equation of state as well as thermonuclear burning (TN burn

Herwig, Falk

254

Study of composite cement containing burned oil shale  

E-Print Network (OSTI)

Study of composite cement containing burned oil shale Julien Ston Supervisors : Prof. Karen properties. SCMs can be by-products from various industries or of natural origin, such as shale. Oil shale correctly, give a material with some cementitious properties known as burned oil shale (BOS). This study

Dalang, Robert C.

255

Process May Reduce Pollution From Burning Coal Refuse Piles  

Science Journals Connector (OSTI)

Process May Reduce Pollution From Burning Coal Refuse Piles ... The process uses a heavy liquid to separate marketable high-ash coal from nonburnable waste rock. ... Nearly 500 mountains of coal refuse, waste material from coal cleaning operations, are burning uncontrollably in 15 states in the U.S., according to a Bureau of Mines survey. ...

1965-01-25T23:59:59.000Z

256

Microsoft PowerPoint - burns.ppt  

NLE Websites -- All DOE Office Websites (Extended Search)

Evaluation of Low Evaluation of Low Tank Level Mixing Technologies for DOE High Level Waste Tank Retrieval (10516) Heather Burns Andrew Fellinger and Richard Minichan Savannah River National Laboratory March 7 - 11, 2010 Phoenix, Arizona Waste Management Symposia 2010 SRNL-STI-2010-00139 2 W A S T E M A N A G E M E N T S Y M P O S I A 2 0 1 0 Agenda Overview Background Why a retrieval knowledge center Initial objectives / goals Low Level Mixing Addressing a challenge through technology demonstration Evaluation criteria Instrumentation Test matrix HOW DID WE GET THERE? WHERE DID WE GO? "Building a Foundation" The challenges that lead to gaps in retrieval Development and mock-up of retrieval technologies 3 W A S T E M A N A G E M E N T S Y M P O S I A 2 0 1 0 Background -

257

High Pressure Burn Rate Measurements on an Ammonium Perchlorate Propellant  

SciTech Connect

High pressure deflagration rate measurements of a unique ammonium perchlorate (AP) based propellant are required to design the base burn motor for a Raytheon weapon system. The results of these deflagration rate measurements will be key in assessing safety and performance of the system. In particular, the system may experience transient pressures on the order of 100's of MPa (10's kPSI). Previous studies on similar AP based materials demonstrate that low pressure (e.g. P < 10 MPa or 1500 PSI) burn rates can be quite different than the elevated pressure deflagration rate measurements (see References and HPP results discussed herein), hence elevated pressure measurements are necessary in order understand the deflagration behavior under relevant conditions. Previous work on explosives have shown that at 100's of MPa some explosives will transition from a laminar burn mechanism to a convective burn mechanism in a process termed deconsolidative burning. The resulting burn rates that are orders-of-magnitude faster than the laminar burn rates. Materials that transition to the deconsolidative-convective burn mechanism at elevated pressures have been shown to be considerably more violent in confined heating experiments (i.e. cook-off scenarios). The mechanisms of propellant and explosive deflagration are extremely complex and include both chemical, and mechanical processes, hence predicting the behavior and rate of a novel material or formulation is difficult if not impossible. In this work, the AP/HTPB based material, TAL-1503 (B-2049), was burned in a constant volume apparatus in argon up to 300 MPa (ca. 44 kPSI). The burn rate and pressure were measured in-situ and used to calculate a pressure dependent burn rate. In general, the material appears to burn in a laminar fashion at these elevated pressures. The experiment was reproduced multiple times and the burn rate law using the best data is B = (0.6 {+-} 0.1) x P{sup (1.05{+-}0.02)} where B is the burn rate in mm/s and P is the pressure in units of MPa. Details of the experimental method, results and data analysis are discussed herein and briefly compared to other AP based materials that have been measured in this apparatus.

Glascoe, E A; Tan, N

2010-04-21T23:59:59.000Z

258

Method and apparatus to measure the depth of skin burns  

DOE Patents (OSTI)

A new device for measuring the depth of surface tissue burns based on the rate at which the skin temperature responds to a sudden differential temperature stimulus. This technique can be performed without physical contact with the burned tissue. In one implementation, time-dependent surface temperature data is taken from subsequent frames of a video signal from an infrared-sensitive video camera. When a thermal transient is created, e.g., by turning off a heat lamp directed at the skin surface, the following time-dependent surface temperature data can be used to determine the skin burn depth. Imaging and non-imaging versions of this device can be implemented, thereby enabling laboratory-quality skin burn depth imagers for hospitals as well as hand-held skin burn depth sensors the size of a small pocket flashlight for field use and triage.

Dickey, Fred M. (Albuquerque, NM); Holswade, Scott C. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

259

ULTRA BARRIER TOPSHEET (UBT) FOR FLEXIBLE PHOTOVOLTAICS  

SciTech Connect

This slide-show presents 3M photovoltaic-related products, particularly flexible components. Emphasis is on the 3M Ultra Barrier Solar Films. Topics covered include reliability and qualification testing and flexible photovoltaic encapsulation costs.

DeScioli, Derek

2013-06-01T23:59:59.000Z

260

Ultra High Efficiency Electric Motor Generator  

Science Journals Connector (OSTI)

The Ultra High Efficiency Electric Motor Generator is an exciting opportunity to leverage ... in green technology. Marand currently produces this motor/generator at our Moorabbin facility for application ... sola...

Jeff Brown

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

ULTRA BARRIER TOPSHEET (UBT) FOR FLEXIBLE PHOTOVOLTAICS  

SciTech Connect

This poster describes the 3M Ultra-Barrier Solar Film and its application; production scale-up and data; reliability and qualification testing; and improvements in the next generation.

Alan, Nachtigal; Berniard, Tracie; Murray, Bill; Roehrig, Mark; Schubert, Charlene; Spagnola, Joseph; Weigel, Mark

2013-01-01T23:59:59.000Z

262

Optical interferometry at ultra low temperatures  

Science Journals Connector (OSTI)

We have developed optical, interferometric methods for investigations of interfaces at ultra low temperatures. In our scheme conventional optical...3He down to 0.6 mK whereas a slow-scan camera has been...?6). Th...

P. J. Hakonen; H. Alles; A. V. Babkin; J. P. Ruutu

1995-10-01T23:59:59.000Z

263

MIPAS observations of organic tracers for biomass burning and intercontinental transport  

E-Print Network (OSTI)

MIPAS observations of organic tracers for biomass burning and intercontinental transport observations of organic tracers for biomass burning and intercontinental transport Introduction Suite - Oxford - September 2009 #12;MIPAS observations of organic tracers for biomass burning

264

Atmospheric polycyclic aromatic hydrocarbons and isomer ratios as tracers of biomass burning emissions in Northern India  

Science Journals Connector (OSTI)

Emission from large-scale post-harvest agricultural-waste burning (paddy-residue burning during October–November and wheat-residue burning in April–May) is a conspicuous feature ... in northern India. The poor an...

Prashant Rajput; M. M. Sarin; Deepti Sharma…

2014-04-01T23:59:59.000Z

265

E-Print Network 3.0 - american biomass burning Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

biomass burning Search Powered by Explorit Topic List Advanced Search Sample search results for: american biomass burning Page: << < 1 2 3 4 5 > >> 1 Recent biomass burning in the...

266

Emission characteristics of black carbon in anthropogenic and biomass burning plumes over California  

E-Print Network (OSTI)

fuel (FF) combustion and biomass burning (BB), respectively. The enhancements of BC and LSP in BBEmission characteristics of black carbon in anthropogenic and biomass burning plumes over. (2012), Emission characteristics of black carbon in anthropogenic and biomass burning plumes over

Jimenez, Jose-Luis

267

Obese and lean Zucker rats demonstrate differential sensitivity to rates of food reinforcement in a choice procedure  

Science Journals Connector (OSTI)

The obese Zucker rat carries two recessive fa alleles that result in the expression of an obese phenotype. Obese Zuckers have higher food intake than lean controls in free-feed studies in which rats have ready access to a large amount of one type of food. The present study examined differences in obese and lean Zucker rats using concurrent schedules of reinforcement, which more ecologically models food selection using two food choices that have limited, but generally predictable availability. Lever-pressing of ten lean (Fa/Fa or Fa/fa) and ten obese (fa/fa) Zucker rats was placed under three concurrent variable interval variable interval (conc VI VI) schedules of sucrose and carrot reinforcement, in which the programmed reinforcer ratios for 45-mg food pellets were 5:1, 1:1, and 1:5. Allocation of responses to the two food alternatives was characterized using the generalized matching equation, which allows sensitivity to reinforcer rates (a) and bias toward one alternative (log k) to be quantified. All rats showed a bias toward sucrose, though there were no differences between lean and obese Zucker rats. In addition, obese Zucker rats exhibited higher sensitivity to reinforcement rates than lean rats. This efficient pattern of responding was related to overall higher deliveries of food pellets. Effective matching for food, then, may be another behavioral pattern that contributes to an obese phenotype.

Jessica L. Buckley; Erin B. Rasmussen

2012-01-01T23:59:59.000Z

268

E-Print Network 3.0 - acute burn patients Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

: Burns & Plastic Surgery Care for Adults and Paediatrics 12;Studying Nursing & Health Care at Glasgow... Certificate in Burns & Plastic Surgery Care for Adults and...

269

Ultra-wideband impedance sensor  

DOE Patents (OSTI)

The ultra-wideband impedance sensor (UWBZ sensor, or Z-sensor) is implemented in differential and single-ended configurations. The differential UWBZ sensor employs a sub-nanosecond impulse to determine the balance of an impedance bridge. The bridge is configured as a differential sample-and-hold circuit that has a reference impedance side and an unknown impedance side. The unknown impedance side includes a short transmission line whose impedance is a function of the near proximity of objects. The single-ended UWBZ sensor eliminates the reference side of the bridge and is formed of a sample and hold circuit having a transmission line whose impedance is a function of the near proximity of objects. The sensing range of the transmission line is bounded by the two-way travel time of the impulse, thereby eliminating spurious Doppler modes from large distant objects that would occur in a microwave CW impedance bridge. Thus, the UWBZ sensor is a range-gated proximity sensor. The Z-sensor senses the near proximity of various materials such as metal, plastic, wood, petroleum products, and living tissue. It is much like a capacitance sensor, yet it is impervious to moisture. One broad application area is the general replacement of magnetic sensors, particularly where nonferrous materials need to be sensed. Another broad application area is sensing full/empty levels in tanks, vats and silos, e.g., a full/empty switch in water or petroleum tanks.

McEwan, Thomas E. (Livermore, CA)

1999-01-01T23:59:59.000Z

270

Ultra-wideband impedance sensor  

DOE Patents (OSTI)

The ultra-wideband impedance sensor (UWBZ sensor, or Z-sensor) is implemented in differential and single-ended configurations. The differential UWBZ sensor employs a sub-nanosecond impulse to determine the balance of an impedance bridge. The bridge is configured as a differential sample-and-hold circuit that has a reference impedance side and an unknown impedance side. The unknown impedance side includes a short transmission line whose impedance is a function of the near proximity of objects. The single-ended UWBZ sensor eliminates the reference side of the bridge and is formed of a sample and hold circuit having a transmission line whose impedance is a function of the near proximity of objects. The sensing range of the transmission line is bounded by the two-way travel time of the impulse, thereby eliminating spurious Doppler modes from large distant objects that would occur in a microwave CW impedance bridge. Thus, the UWBZ sensor is a range-gated proximity sensor. The Z-sensor senses the near proximity of various materials such as metal, plastic, wood, petroleum products, and living tissue. It is much like a capacitance sensor, yet it is impervious to moisture. One broad application area is the general replacement of magnetic sensors, particularly where nonferrous materials need to be sensed. Another broad application area is sensing full/empty levels in tanks, vats and silos, e.g., a full/empty switch in water or petroleum tanks. 2 figs.

McEwan, T.E.

1999-03-16T23:59:59.000Z

271

Ultra-precision positioning assembly  

DOE Patents (OSTI)

An apparatus and method is disclosed for ultra-precision positioning. A slide base provides a foundational support. A slide plate moves with respect to the slide base along a first geometric axis. Either a ball-screw or a piezoelectric actuator working separate or in conjunction displaces the slide plate with respect to the slide base along the first geometric axis. A linking device directs a primary force vector into a center-line of the ball-screw. The linking device consists of a first link which directs a first portion of the primary force vector to an apex point, located along the center-line of the ball-screw, and a second link for directing a second portion of the primary force vector to the apex point. A set of rails, oriented substantially parallel to the center-line of the ball-screw, direct movement of the slide plate with respect to the slide base along the first geometric axis and are positioned such that the apex point falls within a geometric plane formed by the rails. The slide base, the slide plate, the ball-screw, and the linking device together form a slide assembly. Multiple slide assemblies can be distributed about a platform. In such a configuration, the platform may be raised and lowered, or tipped and tilted by jointly or independently displacing the slide plates.

Montesanti, Richard C. (San Francisco, CA); Locke, Stanley F. (Livermore, CA); Thompson, Samuel L. (Pleasanton, CA)

2002-01-01T23:59:59.000Z

272

Oil/gas separator for installation at burning wells  

DOE Patents (OSTI)

An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

Alonso, C.T.; Bender, D.A.; Bowman, B.R.; Burnham, A.K.; Chesnut, D.A.; Comfort, W.J. III; Guymon, L.G.; Henning, C.D.; Pedersen, K.B.; Sefcik, J.A.; Smith, J.A.; Strauch, M.S.

1993-03-09T23:59:59.000Z

273

Oil/gas separator for installation at burning wells  

SciTech Connect

An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait`s oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

Alonso, C.T.; Bender, D.A.; Bowman, B.R. [and others

1991-12-31T23:59:59.000Z

274

Burning hazardous waste in cement kilns  

SciTech Connect

The cement manufacturing process is one of the oldest in the world, having been in practice for over 2000 years. It is also one of the most energy intensive, with up to 65 percent of the cost of the product attributable to energy consumption. In addition to high energy demand, the process conditions include extremely high temperatures. Cement clinker forms when the correct mixture of raw materials is heated to 2650/sup 0/ F. This requires combustion temperatures exceeding 3000/sup 0/ F. under oxidizing conditions. To accomplish this, gas temperatures above 2000/sup 0/ F. occur for several seconds (typically five seconds), which is much longer than residence times in permitted hazardous waste incinerators. These conditions are extremely favorable to the destruction of organic compounds and have led to extensive investigation into the potential for burning hazardous waste in cement kilns. Cement kilns consuming hazardous wastes have been tested for air emissions under various operating conditions. The substantial body of information on the emissions and handling of hazardous wastes from these studies has demonstrated that effective destruction of wastes can be accomplished with the added benefits of energy conservation and no significant change in air emissions.

Chadbourne, J.F.; Helmsteller, A.J.

1983-06-01T23:59:59.000Z

275

Spectral hole burning for stopping light  

SciTech Connect

We propose a protocol for storage and retrieval of photon wave packets in a {lambda}-type atomic medium. This protocol derives from spectral hole burning and takes advantages of the specific properties of solid-state systems at low temperature, such as rare-earth ion-doped crystals. The signal pulse is tuned to the center of the hole that has been burnt previously within the inhomogeneously broadened absorption band. The group velocity is strongly reduced, being proportional to the hole width. This way the optically carried information and energy are carried over to the off-resonance optical dipoles. Storage and retrieval are performed by conversion to and from ground-state Raman coherence by using brief {pi} pulses. The protocol exhibits some resemblance with the well-known electromagnetically induced transparency process. It also presents distinctive features such as the absence of coupling beam. In this paper we detail the various steps of the protocol, summarize the critical parameters, and theoretically examine the recovery efficiency.

Lauro, R.; Chaneliere, T.; Le Goueet, J.-L. [Laboratoire Aime Cotton, CNRS UPR3321, Universite Paris Sud, Batiment 505, Campus Universitaire, 91405 Orsay (France)

2009-05-15T23:59:59.000Z

276

Syngas production from wood pellet using filtration combustion of lean natural gas–air mixtures  

Science Journals Connector (OSTI)

Abstract A common method for the production of hydrogen and syngas is solid fuel gasification. This paper discusses the experimental results obtained from the combustion of lean natural gas–air mixtures in a porous medium composed of aleatory alumina spheres and wood pellets, called hybrid bed. Temperature, velocity, and chemical products (H2, CO, CO2, CH4) of the combustion waves were recorded experimentally in an inert bed (baseline) and hybrid bed (with a volume wood fraction of 50%), for equivalence ratios (?) from 0.3 to 1.0, and a constant filtration velocity of 15 cm/s. Upstream, downstream and standing combustion waves were observed for inert and hybrid bed. The maximum hydrogen conversion in hybrid filtration combustion is found to be ?99% at ? = 0.3. Results demonstrate that wood gasification process occurs with high temperature (1188 K) and oxygen available, and the lean hybrid filtration process can be used to reform solid fuels into hydrogen and syngas.

Karina Araus; Felipe Reyes; Mario Toledo

2014-01-01T23:59:59.000Z

277

Options for CO2-lean hydrogen export from Norway to Germany  

Science Journals Connector (OSTI)

Norway is a nation with an abundant supply of energy, both from fossil and renewable resources. Due to limited domestic demand, Norway is today exporting large amounts of petroleum products. For the future, various options for export of CO2-lean energy exist, both from Northern and Southern Norway, and both from fossil sources (including carbon capture and storage), and renewable energies (particularly wind power). Transport vectors are hydrogen pipelines, liquid hydrogen ships and HVDC cables, and a plausible customer is central Europe due to its proximity, high population density and lack of domestic energy resources. Within the framework of the “NorWays” project, various options to deliver energy for hydrogen-based transportation from Norway to Germany were studied. Eight CO2-lean well-to-wheel energy export chains were evaluated with respect to efficiency, GHG emissions and other environmental impacts, costs and utilisation of Norwegian R&D experience. In the chosen scenarios, energy export via hydrogen pipelines and ships appeared energetically and economically interesting against existing approaches as NG and electricity export. Furthermore, increased utilisation of Norwegian R&D experience and higher value creation is anticipated by the export of a higher refined product.

Christoph Stiller; Ann Mari Svensson; Steffen Møller-Holst; Ulrich Bünger; Kari Aamodt Espegren; Øystein Bindesbøll Holm; Asgeir Tomasgård

2008-01-01T23:59:59.000Z

278

ARM - Field Campaign - Biomass Burning Observation Project - BBOP  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsBiomass Burning Observation Project - BBOP govCampaignsBiomass Burning Observation Project - BBOP Campaign Links BNL BBOP Website ARM Aerial Facility Payload Science Plan Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Biomass Burning Observation Project - BBOP 2013.07.01 - 2013.10.24 Website : http://campaign.arm.gov/bbop/ Lead Scientist : Larry Kleinman For data sets, see below. Description This field campaign will address multiple uncertainties in aerosol intensive properties, which are poorly represented in climate models, by means of aircraft measurements in biomass burning plumes. Key topics to be investigated are: Aerosol mixing state and morphology Mass absorption coefficients (MACs) Chemical composition of non-refractory material associated with

279

ARM - News from the Biomass Burn Observation Project  

NLE Websites -- All DOE Office Websites (Extended Search)

Project (BBOP)News from the Biomass Burn Observation Project Related Links BBOP Home Outreach News & Press Backgrounder (PDF, 2.1MB) Images ARM flickr site ARM Data Discovery...

280

Reversal of Catabolism by Beta-Blockade after Severe Burns  

Science Journals Connector (OSTI)

...-isotope methods and serial body-composition scanning to determine that beta-blockade with propranolol diminishes wasting of skeletal-muscle protein after severe burns. Thirteen severely burned children were given propranolol for up to four weeks and had a decrease in resting energy expenditure, without... Patients with severe burns have catecholamine-mediated hypermetabolism, including pronounced muscle-protein catabolism, that adversely affects recovery. In a prospective, randomized study, 13 children with severe burns were given oral propranolol for up to four weeks in an attempt to interrupt this process, and 12 served as controls. Beta-blockade decreased resting energy expenditure and increased net muscle-protein balance by 82 percent, as compared with a 27 percent decrease in net muscle-protein balance in the control group.

Herndon D.N.Hart D.W.Wolf S.E.Chinkes D.L.Wolfe R.R.

2001-10-25T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Purifying rotary kiln waste gases in chamotte burning  

Science Journals Connector (OSTI)

A study of the operation of electric filters connected to rotary kilns for burning clay into chamotte showed that to increase the dust extraction efficiency it is necessary: with dust concentrations in the gas...

Yu. I. Chander; S. Z. Belinskii; L. G. Borisovskii

282

Nonphotochemical hole burning and dispersive kinetics in amorphous solids.  

E-Print Network (OSTI)

??Results of an extensive study, covering burn intensities in the nW to {dollar}?{dollar}W/cm{dollar}2{dollar} range, of dispersive hole growth kinetics are reported for Oxazine 720 in… (more)

Kenney, Michael Joseph

1990-01-01T23:59:59.000Z

283

Issues to be Addressed Next Step MFE Burning Plasma Experiment  

E-Print Network (OSTI)

of risk into burning plasma initiatives. The level of acceptable risk is clearly a matter of personal with Acceptably Small Elms ALL of these Issues are the subject of active research at ALL major experimental

284

Presented at UFA Burning Plasma Science Workshop II  

E-Print Network (OSTI)

Idaho National Engineering Laboratory Lawrence Livermore National Laboratory Massachusetts Institute, Madison, WI · Charge for First and Second meetings Scientific value of a Burning Plasma experiment Scientific readiness to proceed with such an experiment Is the FIRE mission scientifically appropriate

285

Actinide burning in the integral fast reactor  

SciTech Connect

During the past few years, Argonne National Laboratory has been developing the integral fast reactor (IFR), an advanced liquid-metal reactor concept. In the IFR, the inherent properties of liquid-metal cooling are combined with a new metallic fuel and a radically different refining process to allow breakthroughs in passive safety, fuel cycle economics, and waste management. A key feature of the IFR concept is its unique pyroprocessing. Pyroprocessing has the potential to radically improve long-term waste management strategies by exploiting the following attributes: 1. Minor actinides accompany plutonium product stream; therefore, actinide recycling occurs naturally. Actinides, the primary source of long-term radiological toxicity, are removed from the waste stream and returned to the reactor for in situ burning, generating useful energy. 2. High-level waste volume from pyroprocessing call be reduced substantially as compared with direct disposal of spent fuel. 3. Decay heat loading in the repository can be reduced by a large factor, especially for the long-term burden. 4. Low-level waste generation is minimal. 5. Troublesome fission products, such as [sup 99]Tc, [sup 129]I, and [sup 14]C, are contained and immobilized. Singly or in combination, the foregoing attributes provide important improvements in long-term waste management in terms of the ease in meeting technical performance requirements (perhaps even the feasibility of demonstrating that technical performance requirements can be met) and perhaps also in ultimate public acceptance. Actinide recycling, if successfully developed, could well help the current repository program by providing an opportunity to enhance capacity utilization and by deferring the need for future repositories. It also represents a viable technical backup option in the event unforeseen difficulties arise in the repository licensing process.

Chang, Y.I. (Argonne National Lab., IL (United States))

1993-01-01T23:59:59.000Z

286

Ultra-Efficient and Power-Dense Electric Motors | Department...  

Energy Savers (EERE)

Ultra-Efficient and Power-Dense Electric Motors Ultra-Efficient and Power-Dense Electric Motors electricmotors.pdf More Documents & Publications Advance Patent Waiver W(A)2009-030...

287

Development of Ultra-low Platinum Alloy Cathode Catalyst for...  

Energy Savers (EERE)

Development of Ultra-low Platinum Alloy Cathode Catalyst for PEM Fuel Cells Development of Ultra-low Platinum Alloy Cathode Catalyst for PEM Fuel Cells These slides were presented...

288

Faculty Position in Ultra High Precision Robotics & Manufacturing  

E-Print Network (OSTI)

, manipulation and metrology systems targeting additive manufacturing; · New kinematics, quasi-perfect guidings, actuators, transmission systems, sensors and methods targeting ultra-high precision additive manufacturingFaculty Position in Ultra High Precision Robotics & Manufacturing at the Ecole Polytechnique

Candea, George

289

Single particle size and fluorescence spectra from emissions of burning materials in a tube furnace to simulate burn pits  

Science Journals Connector (OSTI)

A single-particle fluorescence spectrometer (SPFS) and an aerodynamic particle sizer were used to measure the fluorescence spectra and particle size distribution from the particulate emissions of 12 different burning

Yong-Le Pan; Joshua D. T. Houck; Pamela A. Clark; Ronald G. Pinnick

2013-08-01T23:59:59.000Z

290

Sun Ultra 2 System at a Glance Product Specifications  

E-Print Network (OSTI)

Sun Ultra 2 System at a Glance Product Specifications Sun Ultra 2 Model 2170 Sun Ultra 2 Models 1200 and 2200 Sun Ultra 2 Models 1300 and 2300 Dimensions and weight 450 mm x 130 mm x 444 mm (Wx Optional SunCDTM 4x or 12x drive Optional 4-mm DDS2 tape Optional 8-mm tape 14-GB 8-mm tape 2.5-GB 0

MacAdam, Keith

291

ULTRA-LOW-ENERGY HIGH-CURRENT ION SOURCE  

E-Print Network (OSTI)

ULTRA-LOW-ENERGY HIGH-CURRENT ION SOURCE (ULEHIIS) Materialenergy, high-intensity ion source (ULEHIIS) for materials

Anders, Andre

2010-01-01T23:59:59.000Z

292

Design guidelines and evaluation of an ergonomic chair feature capable of providing support to forward-leaning postures  

E-Print Network (OSTI)

female to the 95th percentile male, to establish the range of potential forward-leaning postures. The design of a Support-Arm for use with current ergonomic chairs was discussed and design feature specifications were then provided. A Latin Square...

Stevens, Edward Martin

2005-02-17T23:59:59.000Z

293

Reducing Heavy-Haul Railcar Maintenance Costs and Improving Terminal Performance Using Technology: A Lean Production Approach  

E-Print Network (OSTI)

operations. This research applies Lean Manufacturing methods to the railcar maintenance process industries to improve production and manufacturing efficiency. In the 2000s, various production management with terminal dwell [3,4]. In addition, Logan suggested that for every 15% reduction in systemwide average

Illinois at Urbana-Champaign, University of

294

Study of Reasons for the Adoption of Lean Production in the Automobile Industry: Questions for the AEC Industries  

E-Print Network (OSTI)

Study of Reasons for the Adoption of Lean Production in the Automobile Industry: Questions IN THE AUTOMOBILE INDUSTRY: QUESTIONS FOR THE AEC INDUSTRIES Scott Featherston1 ABSTRACT The primary intent in opting for an alternative? Were there pressures that gave automobile producers no option but to alter

Tommelein, Iris D.

295

Novel Composite Materials Demonstrate Ultra-sensitivity  

NLE Websites -- All DOE Office Websites (Extended Search)

2, Issue 25 2, Issue 25 Novel Composite Materials Demonstrate Ultra-sensitivity Gold nanowires on graphite templates used in gas sensing application page 2 Coronary Stent Wins Technology Transfer Award page 4 University of Oregon Team Wins Competition for Commercializing NETL Technology page 5 the ENERGY lab NATIONAL ENERGY TECHNOLOGY LABORATORY 2 Novel Composite Materials Demonstrate Ultra-sensitivity-Gold nanowires on graphite templates used in gas sensing applications ____________________2 Coronary Stent Wins Technology Transfer Award ________4 University of Oregon Team Wins Competition for Commercializing NETL Technology __________________5 NETL & WVU Researchers Design New Catalysts for CO 2 Management ___________________________________6 Structurally Dynamic MOF Sorbent Selectively Adsorbs

296

Clean-Burning Wood Stove Grant Program (Maryland) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Clean-Burning Wood Stove Grant Program (Maryland) Clean-Burning Wood Stove Grant Program (Maryland) Clean-Burning Wood Stove Grant Program (Maryland) < Back Eligibility Residential Savings Category Bioenergy Program Info Start Date 09/07/2012 State Maryland Program Type State Rebate Program Rebate Amount Stick Burning Stove: $500 Pellet Burning Stove: $700 The Maryland Energy Administration (MEA) now offers the Clean Burning Wood Stove Grant program as part of its Residential Clean Energy Grant Program. The Clean Burning Wood Stove Grant program offers a flat grant award of $500 for stick burning wood stoves and $700 for pellet burning wood stoves that meet program eligibility requirements. Basic requirements for grant funding include: *The property must serve as primary residence *Clean burning wood stove must replace existing electric or non-natural gas

297

Potential health impacts of burning coal beds and waste banks  

Science Journals Connector (OSTI)

Uncontrolled release of pollutants from burning coal beds and waste banks presents potential environmental and human health hazards. On a global scale, the emissions of large volumes of greenhouse gases from burning coal beds may contribute to climate change that alters ecosystems and patterns of disease occurrence. On regional and local scales, the emissions from burning coal beds and waste banks of acidic gases, particulates, organic compounds, and trace elements can contribute to a range of respiratory and other human health problems. Although there are few published reports of health problems caused by these emissions, the potential for problems can be significant. In India, large numbers of people have been displaced from their homes because of health problems caused by emissions from burning coal beds. Volatile elements such as arsenic, fluorine, mercury, and selenium are commonly enriched in coal deposits. Burning coal beds can volatilize these elements, which then can be inhaled, or adsorbed on crops and foods, taken up by livestock or bioaccumulated in birds and fish. Some of these elements can condense on dust particles that can be inhaled or ingested. In addition, selenium, arsenic, lead, tin, bismuth, fluorine, and other elements condense where the hot gaseous emissions come in contact with ambient air, forming mats of concentrated efflorescent minerals on the surface of the ground. These mats can be leached by rainwater and washed into local water bodies providing other potential routes of exposure. Although there are little data linking burning coal beds and waste banks to known health problems, a possibly analogous situation exists in rural China where mineralized coal burned in a residential environment has caused widespread and severe health problems such as fluorosis and arseniasis.

Robert B Finkelman

2004-01-01T23:59:59.000Z

298

Modeling and Control of Lean Premixed Combustion Dynamics for Gas Turbines  

NLE Websites -- All DOE Office Websites (Extended Search)

Virginia Active Combustion Control Group Virginia Active Combustion Control Group Tech Virginia VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY Reacting Flows Laboratory Modeling and Control of Lean Premixed Combustion Dynamics for Gas Turbines Virginia Tech Principal Investigator: Uri Vandsburger SCIES Project 02- 01- SR099 DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded (05/01/02, 36 Month Duration) $ 756,700 Total Contract Value ($ 603,600 DOE) Virginia Active Combustion Control Group Tech Virginia VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY Reacting Flows Laboratory Gas Turbine Technology Needs DLN/LP Gas Turbines * Improved Combustion Stability * Improved Design Methodology With a focus on: - Thermoacoustics

299

Catalytic igniters and their use to ignite lean hydrogen-air mixtures  

DOE Patents (OSTI)

A catalytic igniter which can ignite a hydrogen-air mixture as lean as 5.5% hydrogen with induction times ranging from 20 s to 400 s, under conditions which may be present during a loss-of-liquid-coolant accident at a light water nuclear reactor comprises (a) a perforate catalytically active substrate, such as a platinum coated ceramic honeycomb or wire mesh screen, through which heated gases produced by oxidation of the mixture can freely flow and (b) a plurality of thin platinum wires mounted in a thermally conductive manner on the substrate and positioned thereon so as to be able to receive heat from the substrate and the heated gases while also in contact with unoxidized gases.

McLean, William J. (Oakland, CA); Thorne, Lawrence R. (Livermore, CA); Volponi, Joanne V. (Livermore, CA)

1988-01-01T23:59:59.000Z

300

The Laboratory at 70: A proud history, leaning forward to shape the future  

NLE Websites -- All DOE Office Websites (Extended Search)

Director's Column Director's Column Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit The Laboratory at 70: A proud history, leaning forward to shape the future Seventy years ago, the U.S. Army and the University of California joined together to undertake perhaps the most influential effort of the 20th century: the Manhattan Project. February 1, 2013 dummy image Read our archives. Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email The Laboratory plans wide-ranging activities to celebrate its 70th anniversary, with a full roster of lectures and events open to the public. Seventy years ago on the Pajarito Plateau, the U.S. Army and the University of California joined together to undertake perhaps the most

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Ultra- and extremely high energy neutrino astronomy  

E-Print Network (OSTI)

Scientific motivations for ultra- and extremely high energy neutrino astronomy are considered. Sources and expected fluxes of EHE/UHE neutrinos are briefly discussed. Operating and planned experiments on astrophysical neutrino detection are reviewed focusing on deep underwater/ice Cherenkov neutrino telescopes.

I. Sokalski

2005-01-05T23:59:59.000Z

302

Ultra-wideband radar sensors and networks  

DOE Patents (OSTI)

Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a heart and respiration monitor combined with the motion sensor further improves discrimination.

Leach, Jr., Richard R; Nekoogar, Faranak; Haugen, Peter C

2013-08-06T23:59:59.000Z

303

Ultra Thin Quantum Well Materials  

SciTech Connect

This project has enabled Hi-Z technology Inc. (Hi-Z) to understand how to improve the thermoelectric properties of Si/SiGe Quantum Well Thermoelectric Materials. The research that was completed under this project has enabled Hi-Z Technology, Inc. (Hi-Z) to satisfy the project goal to understand how to improve thermoelectric conversion efficiency and reduce costs by fabricating ultra thin Si/SiGe quantum well (QW) materials and measuring their properties. In addition, Hi-Z gained critical new understanding on how thin film fabrication increases the silicon substrate's electrical conductivity, which is important new knowledge to develop critical material fabrication parameters. QW materials are constructed with alternate layers of an electrical conductor, SiGe and an electrical insulator, Si. Film thicknesses were varied, ranging from 2nm to 10nm where 10 nm was the original film thickness prior to this work. The optimum performance was determined at a Si and SiGe thickness of 4nm for an electrical current and heat flow parallel to the films, which was an important conclusion of this work. Essential new information was obtained on how the Si substrate electrical conductivity increases by up to an order of magnitude upon deposition of QW films. Test measurements and calculations are accurate and include both the quantum well and the substrate. The large increase in substrate electrical conductivity means that a larger portion of the electrical current passes through the substrate. The silicon substrate's increased electrical conductivity is due to inherent impurities and thermal donors which are activated during both molecular beam epitaxy and sputtering deposition of QW materials. Hi-Z's forward looking cost estimations based on future high performance QW modules, in which the best Seebeck coefficient and electrical resistivity are taken from separate samples predict that the electricity cost produced with a QW module could be achieved at <$0.35/W. This price would open many markets for waste heat recovery applications. By installing Hi-Z's materials in applications in which electricity could be produced from waste heat sources could result in significant energy savings as well as emissions reductions. For example, if QW thermoelectric generators could be introduced commercially in 2015, and assuming they could also capture an additional 0.1%/year of the available waste heat from the aluminum, steel, and iron industries, then by 2020, their use would lead to a 2.53 trillion Btu/year reduction in energy consumption. This translates to a $12.9 million/year energy savings, and 383.6 million lb's of CO2 emissions reduction per year. Additionally, Hi-Z would expect that the use of QW TE devices in the automotive, manufacturing, and energy generation industries would reduce the USA's petroleum and fossil fuel dependence, and thus significantly reduce emissions from CO2 and other polluting gasses such as NOx, SOx, and particulate matter (PM), etc.

Dr Saeid Ghamaty

2012-08-16T23:59:59.000Z

304

UltraDots Inc formely UltraPhotonics | Open Energy Information  

Open Energy Info (EERE)

UltraDots Inc formely UltraPhotonics UltraDots Inc formely UltraPhotonics Jump to: navigation, search Name UltraDots Inc (formely UltraPhotonics ) Place Fremont, California Zip CA 94539 Product Nanotechnology company developing "quantum dot" technology for a range of energy, communications and medical applications. Originally included photovoltaics, but this application seems to no longer be the focus. Coordinates 44.2605°, -88.880509° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.2605,"lon":-88.880509,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

305

Nonphotochemical hole burning and dispersive kinetics in amorphous solids  

SciTech Connect

Results covering burn intensities in the nW to {mu}W/cm{sup 2} range, of dispersive hole growth kinetics are reported for Oxazine 720 in glycerol glasses and polyvinyl alcohol polymer films and their deuterated analogues. A theoretical model which employs a distribution function for the hole burning rate constant based upon a Gaussian distribution for the tunnel parameter is shown to accurately describe the kinetic data. This model incorporates the linear electron-phonon coupling. A method for calculating the nonphotochemical quantum yield is presented which utilizes the Gaussian distribution of tunnel parameters. The quantum yield calculation can be extended to determine a quantum yield as a function of hole depth. The effect of spontaneous hole filling is shown to be insignificant over the burn intensity range studied. Average relaxation rates for hole burning are {approximately}8 orders of magnitude greater than for hole filling. The dispersive kinetics of hole burning are observed to be independent over the temperature range of these experiments, 1.6 to 7.0 K. 6 refs., 20 figs., 1 tab.

Kenney, M.J.

1990-09-21T23:59:59.000Z

306

Ultra-Deepwater Advisory Committee | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra-Deepwater Advisory Ultra-Deepwater Advisory Committee Ultra-Deepwater Advisory Committee Ultra-deepwater architecture and technology. | Graphic courtesy of FMC Ultra-deepwater architecture and technology. | Graphic courtesy of FMC Mission The Secretary of Energy, in response to provisions of Subtitle J, Sec. 999 of the Energy Policy Act of 2005, must carry out a program of research, development, demonstration, and commercial application of technologies for ultra-deepwater and onshore unconventional natural gas and other petroleum resource exploration and production, including addressing the technology challenges for small producers, safe operations, and environmental mitigation (including reduction of greenhouse gas emissions and sequestration of carbon). The Department's Ultra-Deepwater Advisory Committee (UDAC) was established

307

Experiments related to the resuspension of aerosols during hydrogen burns  

SciTech Connect

We have performed seven ''add-on'' experiments in two large combustion facilities to investigate the capability of hydrogen burns to remove simulated structural and fission product aerosols previously deposited on small metal discs that have surfaces prototypical of those found in nuclear reactor containments. Our results suggest that hydrogen combustion provides an especially effective mechanism for removal (and, presumably, resuspension) of sedimented aerosols produced in a hypothetical nuclear reactor core-degradation or core-melting accident. The presence of condensing steam does not seem to assure adhesion of sedimented aerosols during hydrogen burns. Differences are exhibited between different surfaces as well as between types of aerosol. In-depth studies will be required to assess the impact exposure of sedimented aerosols to hydrogen burns might have on the radiological source term.

Nelson, L.S.; Guay, K.P.

1987-01-01T23:59:59.000Z

308

Theory of Antineutrino Monitoring of Burning MOX Plutonium Fuels  

E-Print Network (OSTI)

This letter presents the physics and feasibility of reactor antineutrino monitoring to verify the burnup of plutonium loaded in the reactor as a Mixed Oxide (MOX) fuel. It examines the magnitude and temporal variation in the antineutrino signals expected for different MOX fuels, for the purposes of nuclear accountability and safeguards. The antineutrino signals from reactor-grade and weapons-grade MOX are shown to be distinct from those from burning low enriched uranium. Thus, antineutrino monitoring could be used to verify the destruction of plutonium in reactors, though verifying the grade of the plutonium being burned is found to be more challenging.

Hayes, A C; Nieto, Michael Martin; WIlson, W B

2011-01-01T23:59:59.000Z

309

Theory of Antineutrino Monitoring of Burning MOX Plutonium Fuels  

E-Print Network (OSTI)

This letter presents the physics and feasibility of reactor antineutrino monitoring to verify the burnup of plutonium loaded in the reactor as a Mixed Oxide (MOX) fuel. It examines the magnitude and temporal variation in the antineutrino signals expected for different MOX fuels, for the purposes of nuclear accountability and safeguards. The antineutrino signals from reactor-grade and weapons-grade MOX are shown to be distinct from those from burning low enriched uranium. Thus, antineutrino monitoring could be used to verify the destruction of plutonium in reactors, though verifying the grade of the plutonium being burned is found to be more challenging.

A. C. Hayes; H. R. Trellue; Michael Martin Nieto; W. B. WIlson

2011-10-03T23:59:59.000Z

310

Completion of the INEEL's WERF Incinerator Trial Burn  

SciTech Connect

This paper describes the successes and challenges associated with Resource Conservation and Recovery Act (RCRA) permitting of the Idaho National Engineering and Environmental Laboratory's (INEEL) Waste Experimental Reduction Facility (WERF) hazardous and mixed waste incinerator. Topics to be discussed include facility modifications and problems, trial burn results and lessons learned in each of these areas. In addition, a number of challenges remain including completion and final issue of RCRA Permit and implementation of all the permit requirements. Results from the trial burn demonstrated that the operating conditions and procedures will result in emissions that are satisfactorily protective of human health, the environment, and are in compliance with Federal and State regulations.

Branter, Curtis Keith; Conley, Dennis Allen; Corrigan, Shannon James; Moser, David Roy

1999-05-01T23:59:59.000Z

311

Completion of the INEEL's WERF Incinerator Trial Burn  

SciTech Connect

This paper describes the successes and challenges associated with Resource Conservation and Recovery Act (RCRA) permitting of the Idaho National Engineering and Environmental Laboratory's (INEEL) Waste Experimental Reduction Facility (WERF) hazardous and mixed waste incinerator. Topics to be discussed include facility modifications and problems, trial burn results and lessons learned in each of these areas. In addition, a number of challenges remain including completion and final issue of the RCRA Permit and implementation of all the permit requirements. Results from the trial burn demonstrated that the operating conditions and procedures will result in emissions that are satisfactorily protective of human health, the environment, and are in compliance with Federal and State regulations.

C. K. Branter; D. A. Conley; D. R. Moser; S. J. Corrigan

1999-05-01T23:59:59.000Z

312

Burning for Improvement of Macartney Rose-Infested Coastal Prairie.  

E-Print Network (OSTI)

for ~u:nd,mt white-tailed deer (Odocoileus virginianus lIO~lUlatlO?n. The pasture in which the experimental are located is usually grazed by cattle from late to late fall . Experimental Burns were installed as headfires at 2- to 3-month in February... for ~u:nd,mt white-tailed deer (Odocoileus virginianus lIO~lUlatlO?n. The pasture in which the experimental are located is usually grazed by cattle from late to late fall . Experimental Burns were installed as headfires at 2- to 3-month in February...

Gordon, R.A.; Scifres, C.J.

1977-01-01T23:59:59.000Z

313

The implementation dynamics of continuous improvement throughout the corporate hierarchy based on lean six sigma at DTE energy by Timothy David Quinn.  

E-Print Network (OSTI)

This dissertation comprises a case study and formal simulation model of DTE Energy's Lean Six Sigma continuous-improvement (CI) program from its inception in 1998 through the end of 2009. The case history is based on ...

Quinn, Timothy David

2011-01-01T23:59:59.000Z

314

CASE STUDY: From Three to One: Integrating a High Performance Work Organization Process, Lean Production, and Activity Based Costing Change Initiatives  

E-Print Network (OSTI)

In 1997 Boeing’s Wichita Division and the International Association of Machinists and Aerospace Workers agreed to launch a “High Performance Work Organization” (HPWO) process. This followed the introduction of a Lean ...

Kochan, Thomas A.

2000-01-01T23:59:59.000Z

315

An Assessment of the Degree of Implementation of the Lean Aerospace Initiative Principles and Practices within the US Aerospace and Defense Industry  

E-Print Network (OSTI)

This report is a formal documentation of the results of an assessment of the degree to which Lean Principles and Practices have been implemented in the US Aerospace and Defense Industry. An Industry Association team prepared ...

Shaw, Thomas E.

316

High-Bandwidth Modulation of H2/Syngas Fuel to Control Combustion Dynamics in Micro-Mixing Lean Premix - Parker Hannifin  

NLE Websites -- All DOE Office Websites (Extended Search)

Bandwidth Modulation of H Bandwidth Modulation of H 2 /Syngas Fuel to Control Combustion Dynamics in Micro-Mixing Lean Premix-Parker Hannifin Background In this congressionally directed project, Parker Hannifin Corporation (Parker), in cooperation with Georgia Institute of Technology (Georgia Tech), will enhance its micro-mixing injector platform to improve combustion operability in lean premix turbine systems by attenuating the combustion dynamics. This will be accomplished

317

Advanced Materials for Ultra Supercritical Boiler Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Road Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4721 robert.romanosky@netl.doe.gov Patricia a. Rawls Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-5882 patricia.rawls@netl.doe.gov Robert M. Purgert Prime Contractor and Administrator Energy Industries of Ohio 6100 Oak Tree Boulevard, Suite 200 Independence, OH 44131-6914 216-643-2952 purgert@msn.com AdvAnced MAteriAls for UltrA sUpercriticAl Boiler systeMs Description A consortium led by the U.S. Department of Energy (DOE) Office of Fossil Energy (FE) has conducted the first phase of a multiyear program to develop materials technology for use in advanced ultra supercritical (USC) coal-fired power plants. The advanced materials developed in this project are essential for construction of

318

Two Novel Ultra-Incompressible Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Two Novel Ultra-Incompressible Materials Print Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and Berkeley Lab working at ALS Beamlines 12.2.2 and 12.3.2 has now synthesized and characterized two novel bulk rhenium nitrides, Re2N and Re3N. Both phases are extremely incompressible, and Re3N is also better placed for potential technological applications than are other incompressible transition-metal carbides and nitrides of the period-six elements because it can be formed at relatively moderate pressures and temperatures.

319

Two Novel Ultra-Incompressible Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Two Novel Ultra-Incompressible Materials Print Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and Berkeley Lab working at ALS Beamlines 12.2.2 and 12.3.2 has now synthesized and characterized two novel bulk rhenium nitrides, Re2N and Re3N. Both phases are extremely incompressible, and Re3N is also better placed for potential technological applications than are other incompressible transition-metal carbides and nitrides of the period-six elements because it can be formed at relatively moderate pressures and temperatures.

320

Two Novel Ultra-Incompressible Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Two Novel Ultra-Incompressible Materials Print Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and Berkeley Lab working at ALS Beamlines 12.2.2 and 12.3.2 has now synthesized and characterized two novel bulk rhenium nitrides, Re2N and Re3N. Both phases are extremely incompressible, and Re3N is also better placed for potential technological applications than are other incompressible transition-metal carbides and nitrides of the period-six elements because it can be formed at relatively moderate pressures and temperatures.

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Two Novel Ultra-Incompressible Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Two Novel Ultra-Incompressible Materials Print Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and Berkeley Lab working at ALS Beamlines 12.2.2 and 12.3.2 has now synthesized and characterized two novel bulk rhenium nitrides, Re2N and Re3N. Both phases are extremely incompressible, and Re3N is also better placed for potential technological applications than are other incompressible transition-metal carbides and nitrides of the period-six elements because it can be formed at relatively moderate pressures and temperatures.

322

Physics with ultra-low energy antiprotons  

SciTech Connect

The experimental observation that all forms of matter experience the same gravitational acceleration is embodied in the weak equivalence principle of gravitational physics. However no experiment has tested this principle for particles of antimatter such as the antiproton or the antihydrogen atom. Clearly the question of whether antimatter is in compliance with weak equivalence is a fundamental experimental issue, which can best be addressed at an ultra-low energy antiproton facility. This paper addresses the issue. 20 refs.

Holtkamp, D.B.; Holzscheiter, M.H.; Hughes, R.J. (Los Alamos National Lab., NM (USA))

1989-01-01T23:59:59.000Z

323

Reducing Pausing at Rich-to-Lean Schedule Transitions: Effects of Variable-Ratio Schedules and Noncontingent Timeouts  

E-Print Network (OSTI)

-schedule component), which may maintain responding in the lean component when there is insufficient reinforcement. 4 General Introduction The Basic Problem: Pausing on FR Schedules Fixed-ratio (FR) schedules require that a certain number of responses occur.... In the context of a FR schedule, pausing may be considered counterproductive (or maladaptive) because it postpones the receipt of a reinforcer for a food-deprived organism. A host of variables affect pausing on FR schedules; for example, pausing increases as a...

Brewer, Adam Thornton

2012-08-31T23:59:59.000Z

324

Ignition and Burn in a Small Magnetized Fuel Target  

E-Print Network (OSTI)

LASNEX calculations of a small magnetized target show high gain at a velocity significantly lower than needed for unmagnetized targets. Its cryogenic fuel layer appears to be raised to an equilibrium ignition temperature of about 2 keV by the radiation from the burning magnetized fuel.

Kirkpatrick, Ronald C

2014-01-01T23:59:59.000Z

325

BURNING BURIED SUNSHINE: HUMAN CONSUMPTION OF ANCIENT SOLAR ENERGY  

E-Print Network (OSTI)

BURNING BURIED SUNSHINE: HUMAN CONSUMPTION OF ANCIENT SOLAR ENERGY JEFFREY S. DUKES Department of as a vast store of solar energy from which society meets >80% of its current energy needs. Here, using of ancient solar energy decline, humans are likely to use an increasing share of modern solar resources. I

Dukes, Jeffrey

326

LIBERTY TOLERANT COTTON: WEED CONTROL AND CROP TOLERANCE Brent Burns  

E-Print Network (OSTI)

LIBERTY TOLERANT COTTON: WEED CONTROL AND CROP TOLERANCE Brent Burns Texas Tech University Lubbock Acres planted with herbicide-tolerant cotton varieties have steadily increased since their introduction in 1995. Recently, the bar gene was introduced into Coker 312 cotton plants for tolerance to Liberty

Mukhtar, Saqib

327

More than words : a biography of Daniel Francis Burns  

E-Print Network (OSTI)

Daniel Francis Burns was born in Ireland in 1888 and immigrated to the United States in 1912. He married Mary O'Neill in 1923 and had a family of seven children. He worked as a police officer in the Boston Police Department ...

Burns, Matthew R. (Matthew Robert)

2005-01-01T23:59:59.000Z

328

PRESENTATION TO NRC BURNING PLASMA PANEL DR. STEPHEN O. DEAN  

E-Print Network (OSTI)

1 PRESENTATION TO NRC BURNING PLASMA PANEL DR. STEPHEN O. DEAN PRESIDENT FUSION POWER ASSOCIATES REACTORS ! FISSION PRODUCT DEACTIVATION ! HAZARDOUS WASTE PROCESSING ! RECYCLING OF MATERIALS ! FUSION ! UNRESOLVED WASTE DISPOSAL ISSUE EPRI DID PREPARE TWO REPORTS ON FUSION, IN 1992 AND 1994 ! Report of the 1992

329

Firm sues to hasten burning of waste at sea  

Science Journals Connector (OSTI)

In an effort to force a decision on its bid to perform a research burn of chemical wastes at sea, Chemical Waste Management is suing both the Environmental Protection Agency and the National Oceanic & Atmospheric Administration. The company wants the U.S. ...

1986-03-24T23:59:59.000Z

330

A New Type Heat Exchanger for Coal Burning Boilers  

Science Journals Connector (OSTI)

To make the best of heat energy in the flue gas exhausted from a coal burning boiler, the design proposal for a new type of heat exchanger was put forward in the paper. Via the new type of heat exchanger, temperature of the flue gas can be decreased ... Keywords: waste heat utilization, energy conservation, special heat exchanger, economizer

Bingwen Zhang; Yingjin Zhang

2010-06-01T23:59:59.000Z

331

Paediatric medical trauma: The impact on parents of burn survivors  

Science Journals Connector (OSTI)

In order to identify parents at risk of developing ongoing psychological distress after their child has sustained a burn a greater understanding of paediatric medical trauma is required. Aim To investigate the impact of exposure to paediatric trauma on parents of children with a burn and to identify risk factors and relationships between psychological distress and resilience. Methods Sixty-three parents were recruited. Parents completed standardised assessments measuring symptoms of posttraumatic stress disorder (PTSD), depression, anxiety, stress, and resilience within one week of the burn occurring. Statistical analysis included t-tests, Kruskal–Wallis one way ANOVA and Spearman's Roe. Results Parents experienced significantly more symptoms of PTSD (p = 0.001) than a comparative community population. Factors including having a daughter, witnessing the event, feeling helpless or having past traumatic experiences significantly influenced symptoms of psychological distress and resilience (p = 0.05). Conclusion Parents of burn survivors experience significant psychological distress with low levels of resilience. As part of standard routine care health professionals should screen parents to identify those at greatest risk and provide effective evidence based interventions aimed at improving resilience and reducing stress.

Sarah McGarry; Sonya Girdler; Ann McDonald; Jane Valentine; Fiona Wood; Catherine Elliott

2013-01-01T23:59:59.000Z

332

The impact of infield biomass burning on PM levels and its chemical composition  

Science Journals Connector (OSTI)

In the South of Italy, it is common for farmers to burn pruning waste from olive trees in spring. In order to evaluate the impact of the biomass burning source on the physical and chemical characteristics ... ope...

P. Dambruoso; G. de Gennaro; A. Di Gilio…

2014-12-01T23:59:59.000Z

333

Burning of Hydrocarbon Fuels Directly in a Water-Based Heat Carrier  

Science Journals Connector (OSTI)

A principal possibility of burning hydrocarbon fuels directly in a water-based heat carrier is demonstrated. The first experimental results are presented by an example of burning acetylene in water with initia...

V. S. Teslenko; V. I. Manzhalei; R. N. Medvedev…

2010-07-01T23:59:59.000Z

334

Physical and Chemical Characterization of Particulate and Gas phase Emissions from Biomass Burning  

E-Print Network (OSTI)

during the open combustion of biomass in the laboratory, J.J. R. , and Veres, P. : Biomass burning in Siberia andOpen burning of agricultural biomass: Physical and chemical

Hosseini, Seyedehsan

2012-01-01T23:59:59.000Z

335

Recovery Boiler Modeling: An Improved Char Burning Model Including Sulfate Reduction and Carbon Removal  

E-Print Network (OSTI)

gasification, reactions between oxygen and combustibles in the boundary layer, and integration of sulfate reduction and sulfide reoxidation into the char burning process. Simulations using the model show that for typical recovery boiler conditions, char burning...

Grace, T. M.; Wag, K. J.; Horton, R. R.; Frederick, W. J.

336

Applied modelling for bio and lean gas fired micro gas turbines  

Science Journals Connector (OSTI)

This contribution presents the outcome of applied Computational Fluid Dynamics for analysis of combustion technologies to find an efficient firing mode for use of bio and low calorific gaseous fuels in micro gas turbine combustors. The combustion technologies considered are based on the new concepts of Flameless Oxidation and Continued Staged Air. To optimise these concepts to burn low calorific gaseous fuels manifold numerical simulations were carried out using the CFD code FLUENT. The results achieved showed the influence of the fuel compositions on the flow behaviour inside the combustion chamber, reaction zone, flame structure and pollutant emissions.

A. Al-Halbouni; A. Giese; M. Flamme; K. Goerner

2006-01-01T23:59:59.000Z

337

Materials for Ultra-Supercritical Steam Power Plants  

NLE Websites -- All DOE Office Websites (Extended Search)

for Advanced Ultra-Supercritical for Advanced Ultra-Supercritical Steam Power Plants Background The first ultra-supercritical (USC) steam plants in the U.S. were designed, constructed, and operated in the late 1950s. The higher operating temperatures and pressures in USC plants were designed to increase the efficiency of steam plants. However, materials performance problems forced the reduction of steam temperatures in these plants, and discouraged further developmental efforts on low heat-rate units.

338

ULTRA-DEEP WATER ADVISORY COMMITTEE FINDINGS AND  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ULTRA-DEEP WATER ADVISORY COMMITTEE FINDINGS AND RECOMMENDATIONS 2014 ULTRA-DEEPWATER ADVISORY COMMITTEE COMMITTEE FINDINGS AND RECOMMENDATIONS i Table of Contents Research and Development Program Committee ............................................ 1 Sunset Committee .................................................................................................. 5 Advisory Committee Members ........................................................................... 7 ULTRA-DEEPWATER ADVISORY COMMITTEE COMMITTEE FINDINGS AND RECOMMENDATIONS 1 Research and Development Program Committee The R&D Program Subcommittee of the UDAC notes that the 2014 Annual Plan has continued to take into account safety and environment in several aspects of the proposed

339

Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneratio...  

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

Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel...

340

Performance of Ultra Thin White Topping in Oklahoma.  

E-Print Network (OSTI)

??Asphalt pavements would benefit from a low maintenance rehabilitation technique. Modern technology in the form of placement of a thin concrete overlay or ultra thin… (more)

Rotithor, Hari Ganesh

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

The origin of ultra high energy cosmic rays  

E-Print Network (OSTI)

We briefly discuss some open problems and recent developments in the investigation of the origin and propagation of ultra high energy cosmic rays (UHECRs).

Pasquale Blasi

2005-12-16T23:59:59.000Z

342

Ultra-high Resolution Electron Microscopy for Catalyst Characterizatio...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

high Resolution Electron Microscopy for Catalyst Characterization Ultra-high Resolution Electron Microscopy for Catalyst Characterization 2009 DOE Hydrogen Program and Vehicle...

343

Ultra-High Resolution Electron Microscopy for Catalyst Characterizatio...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

High Resolution Electron Microscopy for Catalyst Characterization Ultra-High Resolution Electron Microscopy for Catalyst Characterization 2010 DOE Vehicle Technologies and Hydrogen...

344

Variable Temperature Ultra-High Vacuum Scanning Tunneling Microscope...  

NLE Websites -- All DOE Office Websites (Extended Search)

Vacuum Scanning Tunneling Microscope The Omicron variable temperature ultra-high vacuum (UHV) scanning tunneling microscope (VTSTM) is designed to study the structure of both clean...

345

Liquid fuels perspective on ultra low carbon vehicles | Department...  

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

fuels perspective on ultra low carbon vehicles Fuels challenges in the evolving global energy market deer11simnick.pdf More Documents & Publications Green Racing Initiative:...

346

Ultra Large Castings for Lightweight Vehicle Structures ?AMD...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Maryland. merit08mccarty6.pdf More Documents & Publications Ultra Large Castings For Lightweight Vehicle Structures Magnesium Powertrain Cast Components Project (AMD 304)...

347

LIMITATIONS ON MEASURING A TRANSVERSE PROFILE OF ULTRA- DENSE...  

NLE Websites -- All DOE Office Websites (Extended Search)

LIMITATIONS ON MEASURING A TRANSVERSE PROFILE OF ULTRA- DENSE ELECTRON BEAMS WITH SCINTILLATORS A. Murokh * , J. Rosenzweig, University of California, Los Angeles, CA 90095-1547,...

348

US Burning Plasma Workshop Oak Ridge National Laboratory US Contributions to ITER Project (US ITER)  

E-Print Network (OSTI)

US Burning Plasma Workshop Oak Ridge National Laboratory US Contributions to ITER Project (US ITER Plasma Workshop Oak Ridge, TN December 7, 2005 #12;US Burning Plasma Workshop Oak Ridge National '06 Expectations · Summary #12;US Burning Plasma Workshop Oak Ridge National Laboratory Highlights

349

Direct and semi-direct aerosol effects of Southern African1 biomass burning aerosol2  

E-Print Network (OSTI)

1 Direct and semi-direct aerosol effects of Southern African1 biomass burning aerosol2 Naoko effects of biomass burning aerosols from Southern African fires9 during July-October are investigated region the overall TOA radiative effect from the23 biomass burning aerosols is almost zero due

Wood, Robert

350

Direct and semidirect aerosol effects of southern African biomass burning aerosol  

E-Print Network (OSTI)

Direct and semidirect aerosol effects of southern African biomass burning aerosol Naoko Sakaeda,1 2011; published 21 June 2011. [1] Direct and semidirect radiative effects of biomass burning aerosols static stability. Over the entire region the overall TOA radiative effect from the biomass burning

Wood, Robert

351

Biomass burning emission inventory with daily resolution: Application to aircraft observations of Asian outflow  

E-Print Network (OSTI)

Biomass burning emission inventory with daily resolution: Application to aircraft observations for biomass burning using AVHRR satellite observations of fire activity corrected for data gaps and scan angle biomass burning in SE Asia was a major contributor to the outflow of Asian pollution observed in TRACE

Palmer, Paul

352

Evolution of biomass burning aerosol properties from an agricultural fire in southern Africa  

E-Print Network (OSTI)

Evolution of biomass burning aerosol properties from an agricultural fire in southern Africa Steven Met Office C-130 within a distinct biomass burning plume during the Southern AFricAn Regional science, and P. R. Buseck, Evolution of biomass burning aerosol properties from an agricultural fire in southern

Highwood, Ellie

353

Particle and Gas Emissions from a Simulated Coal-Burning Household Fire Pit  

Science Journals Connector (OSTI)

Particle and Gas Emissions from a Simulated Coal-Burning Household Fire Pit ... Chinese anthracite and bituminous coals produce different amounts of emissions when burned in a fire pit that simulates common rural household use of these fuels. ... Here we present emissions from burning 15 different fuels in a laboratory system designed to mimic the fire pits used in Xuan Wei County, China. ...

Linwei Tian; Donald Lucas; Susan L. Fischer; S. C. Lee; S. Katharine Hammond; Catherine P. Koshland

2008-02-21T23:59:59.000Z

354

Evaluation of candida precipitin and agglutinin tests for the diagnosis of systemic candidiasis in burn patients.  

Science Journals Connector (OSTI)

...hospitals and did not include any burn patients. However, in a study on burn patients, the germ tube dispersion...disease entities are apparent pit- falls for this test. This...of systemic candidiasis in the burn patient. Our goal was to determine...

I A Holder; P J Kozinn; E J Law

1977-09-01T23:59:59.000Z

355

Maglev Launch: Ultra?low Cost, Ultra?high Volume Access to Space for Cargo and Humans  

Science Journals Connector (OSTI)

Despite decades of efforts to reduce rocket launch costs improvements are marginal. Launch cost to LEO for cargo is ?$10 000 per kg of payload and to higher orbit and beyond much greater. Human access to the ISS costs $20 million for a single passenger. Unless launch costs are greatly reduced large scale commercial use and human exploration of the solar system will not occur. A new approach for ultra low cost access to space—Maglev Launch—magnetically accelerates levitated spacecraft to orbital speeds 8 km/sec or more in evacuated tunnels on the surface using Maglev technology like that operating in Japan for high speed passenger transport. The cost of electric energy to reach orbital speed is less than $1 per kilogram of payload. Two Maglev launch systems are described the Gen?1System for unmanned cargo craft to orbit and Gen?2 for large?scale access of human to space. Magnetically levitated and propelled Gen?1 cargo craft accelerate in a 100 kilometer long evacuated tunnel entering the atmosphere at the tunnel exit which is located in high altitude terrain (?5000 meters) through an electrically powered “MHD Window” that prevents outside air from flowing into the tunnel. The Gen?1 cargo craft then coasts upwards to space where a small rocket burn ?0.5 km/sec establishes the final orbit. The Gen?1 reference design launches a 40 ton 2 meter diameter spacecraft with 35 tons of payload. At 12 launches per day a single Gen?1 facility could launch 150 000 tons annually. Using present costs for tunneling superconductors cryogenic equipment materials etc. the projected construction cost for the Gen?1 facility is 20 billion dollars. Amortization cost plus Spacecraft and O&M costs total $43 per kg of payload. For polar orbit launches sites exist in Alaska Russia and China. For equatorial orbit launches sites exist in the Andes and Africa. With funding the Gen?1 system could operate by 2020 AD. The Gen?2 system requires more advanced technology. Passenger spacecraft enter the atmosphere at 70 000 feet where deceleration is acceptable. A levitated evacuated launch tube is used with the levitation force generated by magnetic interaction between superconducting cables on the levitated launch tube and superconducting cables on the ground beneath. The Gen?2 system could launch 100’s of thousands of passengers per year and operate by 2030 AD. Maglev launch will enable large human scale exploration of space thousands of gigawatts of space solar power satellites for beamed power to Earth a robust defense against asteroids and comets and many other applications not possible now.

James Powell; George Maise; John Rather

2010-01-01T23:59:59.000Z

356

Time-dependent inversion estimates of global biomass-burning CO emissions using Measurement of Pollution in the Troposphere (MOPITT) measurements  

E-Print Network (OSTI)

fuel/biofuel combustion (FFBF), biomass burning (BIOM) andsource from fuel combustion as well as biomass burning of

Arellano, Avelino F; Kasibhatla, Prasad S; Giglio, Louis; van der Werf, Guido R; Randerson, James T; Collatz, G. James

2006-01-01T23:59:59.000Z

357

Ultra-low contact resistance at an epitaxial metal/oxide heterojunctio...  

NLE Websites -- All DOE Office Websites (Extended Search)

Ultra-low contact resistance at an epitaxial metaloxide heterojunction through interstitial site doping. Ultra-low contact resistance at an epitaxial metaloxide heterojunction...

358

E-Print Network 3.0 - approach enabling ultra-long Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

do not address... generation of optical line systems that support ultra long-haul transmission uses broadband Raman... for understanding control dynamics in ultra long- haul...

359

Astronomy with ultra high-energy particles  

E-Print Network (OSTI)

Recent measurements of the properties of cosmic rays above 10^17 eV are summarized and implications on our contemporary understanding of their origin are discussed. Cosmic rays with energies exceeding 10^20 eV have been measured, they are the highest-energy particles in the Universe. Particles at highest energies are expected to be only marginally deflected by magnetic fields and they should point towards their sources on the sky. Recent results of the Pierre Auger Observatory have opened a new window to the Universe - astronomy with ultra high-energy particles.

Joerg R. Hoerandel

2008-03-20T23:59:59.000Z

360

Ultra-high vacuum photoelectron linear accelerator  

DOE Patents (OSTI)

An rf linear accelerator for producing an electron beam. The outer wall of the rf cavity of said linear accelerator being perforated to allow gas inside said rf cavity to flow to a pressure chamber surrounding said rf cavity and having means of ultra high vacuum pumping of the cathode of said rf linear accelerator. Said rf linear accelerator is used to accelerate polarized or unpolarized electrons produced by a photocathode, or to accelerate thermally heated electrons produced by a thermionic cathode, or to accelerate rf heated field emission electrons produced by a field emission cathode.

Yu, David U.L.; Luo, Yan

2013-07-16T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Ultra Accelerated Testing of PV Module Components  

SciTech Connect

Using concentrated natural sunlight at the NREL High Flux Solar Furnace, we have exposed several materials to acceleration factors of up to 400 times the normal outdoor UV exposure dose. This accelerated rate allows the exposure of materials such that a year of outdoor exposure can be simulated in about 5 hours. We have studied the solarization of cerium containing glass, the degradation of ethylene vinyl acetate laminated between borosilicate glass, and the yellowing of standard polystyrene test coupons. The first two candidates are of interest to the photovoltaics (PV) program, and the last candidate material is a widely used dosimeter for ultra violet (UV) exposure in accelerated weathering chambers

Pitts, J. R.; King, D. E.; Bingham, C.; Czanderna, A. W.

1998-10-28T23:59:59.000Z

362

Materials development for ultra-supercritical boilers  

SciTech Connect

Progress is reported on a US Department of Energy project to develop high temperature, corrosion resistant alloys for use in ultra-supercritical steam cycles. The aim is to achieve boiler operation at 1,400{sup o}F/5,000 psi steam conditions with 47% net cycle efficiency. Most ferritic steel tested such as T92 and Save 12 showed severe corrosion. Nickel-based alloys, especially IN 740 and CCA 617, showed greatest resistance to oxidation with no evidence of exfoliation. Laboratory and in-plant tests have begun. 2 figs.

NONE

2005-09-30T23:59:59.000Z

363

Kleinman 2013 Biomass Burn Plan B.ppt  

NLE Websites -- All DOE Office Websites (Extended Search)

if There are Few Fires? if There are Few Fires? Fire Plan Major focus is to sample fires in near-field where there are rapid changes, with a particular emphasis on soot, brown carbon, and SOA This includes sampling other sources for contrast Urban, Long range transport Plan B Same instruments can be used for multiple purposes Year to Year Burn Variability Fire Data from FINN version 1.0, courtesy of Christine Wiedinmyer Areas are ~ 1000 km by 1000 km centered on Pasco, WA and Little Rock, AK Year to year variability in Monthly Fire Emissions ~ factor of 10. Year to Year Burn Variability Fire Data from FINN version 1.0, courtesy of Christine Wiedinmyer Large year to year variability in Fire Counts Sometimes, 2 week periods between fire activity Other Soot/Brown Carbon Sources

364

NETL: News Release - Combustion Optimization Systems - Cleaner Coal Burning  

NLE Websites -- All DOE Office Websites (Extended Search)

"Combustion Optimization System" - Cleaner Coal Burning at Lower Costs "Combustion Optimization System" - Cleaner Coal Burning at Lower Costs DOE Joins with Sunflower Electric to Outfit Kansas Coal Plant with Lower Cost System to Cut Air Emissions FINNEY COUNTY, KS - A unique combination of high-tech combustion modifications and sophisticated control systems will be tested on a Kansas coal-fired power plant as part of the federal government's efforts to show how new technology can reduce air emissions and save costs for ratepayers. - Sunflower Electric's Holcomb Station - Sunflower Electric's Holcomb Station will be outfitted with a combination of innovative hardware and software to further reduce air emissions. - The U.S. Department of Energy and Sunflower Electric Power Corporation have signed an agreement to use the utility's Holcomb Station power plant in

365

New Computer Codes Unlock the Secrets of Cleaner Burning Coal  

NLE Websites -- All DOE Office Websites (Extended Search)

Codes Codes Unlock the Secrets of Cleaner Burning Coal New Computer Codes Unlock the Secrets of Cleaner Burning Coal March 29, 2012 | Tags: Advanced Scientific Computing Research (ASCR), Combustion, Franklin, Hopper Linda Vu, lvu@lbl.gov, +1 510 495 2402 The Polk Power Station near Mulberry, Florida, is an Integrated Gasification Combined Cycle gasification plant. It is capable of generating 313 megawatts of electricity - 250 megawatts of which are supplied to the electric grid. The plant's gas cleaning technology removes more than 98 percent of the sulfur in coal, converting it to a commercial product. Nitrogen oxide emissions are reduced by more than 90 percent. (Photo courtesy of DOE-NETL) Approximately half of all electricity used in the United States comes from

366

Type Ia Supernova: Burning and Detonation in the Distributed Regime  

E-Print Network (OSTI)

A simple, semi-analytic representation is developed for nuclear burning in Type Ia supernovae in the special case where turbulent eddies completely disrupt the flame. The speed and width of the ``distributed'' flame front are derived. For the conditions considered, the burning front can be considered as a turbulent flame brush composed of corrugated sheets of well-mixed flames. These flames are assumed to have a quasi-steady-state structure similar to the laminar flame structure, but controlled by turbulent diffusion. Detonations cannot appear in the system as long as distributed flames are still quasi-steady-state, but this condition is violated when the distributed flame width becomes comparable to the size of largest turbulent eddies. When this happens, a transition to detonation may occur. For current best estimates of the turbulent energy, the most likely density for the transition to detonation is in the range 0.5 - 1.5 x 10^7 g cm^{-3}.

S. E. Woosley

2007-09-26T23:59:59.000Z

367

Delineation of a coal burn edge with seismic refraction  

SciTech Connect

Coal seams in many areas of western United States have ignited and burned for considerable distances underground. The boundary between the coal and clinker needs to be defined for determination of reserves. Field tests of a seismic refraction method were conducted at Kerr-McGee Coal Corp's open pit Clovis Point mine near Gillette, Wyoming. Explosive sources were detonated in shot holes in the pit floor. Geophone lines, laid on the surface beyond the edge of the pit, crossed from an area of known coal to an area of clinker. Delays in arrival times correlated with the expected beginning of the clinker zone. Waves passing through the clinker also exhibit a significant attenuation. A magnetic survey concluded along the seismic lines showed anomalies in the regions where seismic data indicated the burn edge.

Sontag, K.D.; Wolfe, P.J.

1984-05-01T23:59:59.000Z

368

Data Summary Report D-Area Burning/Rubble Pits  

SciTech Connect

The purpose of this report is to verify that all analytical data collected at the D-Area Burning/Rubble Pits at the Savannah River Site for use in developing risk assessment and potential remediation procedures have been validated at the appropriate level. Any discrepancies or reasons why the data should be rejected for this purpose will be addressed. This report documents the data validation procedures used by Environmental Monitoring Section, Exploration Resources, and RUST Environment {ampersand} Infrastructure for Assigning qualifiers.

Palmer, E.R. [Westinghouse Savannah River Company, AIKEN, SC (United States)

1994-10-01T23:59:59.000Z

369

The Pierre Auger Observatory: Perspectives on Ultra-High Energy  

E-Print Network (OSTI)

¨ue, Argentina Abstract The Pierre Auger Observatory for ultra-high energy cosmic rays is under constructionThe Pierre Auger Observatory: Perspectives on Ultra-High Energy Cosmic Rays Tiina Suomij¨arvi1 in Argentina. The Observatory will consist when completed of 1600 water Cerenkov tanks and 24 fluorescence

Paris-Sud XI, Université de

370

Emission factor estimates of cereal waste burning in Spain  

Science Journals Connector (OSTI)

Every year more than 5 million ha of cereal fields are affected by fires in order to eliminate cereal waste in Spain. The characteristics of this type of fire with intense flames are similar to those of the African dry savanna heading fires. This paper surveys the atmospheric emission caused by this process by combining results of field and combustion chamber experiments. Combustion chamber experiments show that during the flaming phase 88% of the fire exposed carbon is converted into CO2 and during the smoldering phase this percentage changes to 74%. These combustion chamber experiments also show that the soluble part of the aerosols emitted during the course of fires only represent 3% of the total particulate matter (TPM) produced, being the ions K+ and CI? the predominant ones. The cereal waste fire process can be represented by an arithmetic combination that takes into account the amounts of mass burned during the two phases of the fire: 0.90 flaming +0.10 smoldering. Emission factor estimates from field burning experiment are 13±7 g TPM kg?1(dm) and 2.8±0.2 g NOx kg?1 (dm). Finally, we obtain average emissions of 80–130 Gg TPM, 17–28 Gg NOx, 210–350 Gg CO and 8–14 Tg CO2 in Spain. These emissions represent nearly 25% of the total \\{NOx\\} and 50% of the total CO2 emissions by other pollution sources during the burning period in Spain.

I. Ortiz de Zárate; A. Ezcurra; J.P. Lacaux; Pham Van Dinh

2000-01-01T23:59:59.000Z

371

BIOMASS BURNING IN THE AMAZON: LINKS BETWEEN BURNING, SCIAMACHY TRACE GASES, AND AEROSOL AND SURFACE PROPERTIES FROM THE ORAC-AATSR RETRIEVAL  

E-Print Network (OSTI)

BIOMASS BURNING IN THE AMAZON: LINKS BETWEEN BURNING, SCIAMACHY TRACE GASES, AND AEROSOL, OX1 3PU, UK 2: Science and Technology Facilities Council Rutherford Appleton Laboratory, Harwell://www.iup.uni-bremen.de/sciamachy/ · ESA (A)ATSR World Fire Atlas: http://dup.esrin.esa.it/ionia/wfa/index.asp · MODIS Fire and Thermal

Oxford, University of

372

Particulate matter characteristics during agricultural waste burning in Taichung City, Taiwan  

Science Journals Connector (OSTI)

Agricultural waste burning is performed after harvest periods in June and November in Taiwan. Typically, farmers use open burning to dispose of excess rice straw. PM2.5 and PM2.5–10 measurements were conducted at National Chung Hsing University in Taichung City using a dichotomous sampler. The sampling times were during straw burning periods after rice harvest during 2002–2005. Ionic species including SO42?, NO3?, NH4+, K+, Ca2+, Cl? and Na+ and carbonaceous species (EC and OC) in PM2.5 and PM2.5–10 were analyzed. The results showed that the average PM2.5 and PM2.5–10 concentrations were 123.6 and 31.5 ?g m?3 during agricultural waste burning periods and 32.6 and 21.4 ?g m?3 during non-waste burning periods, respectively. The fine aerosol ionic species including Cl?, K+ and NO3? increased 11.0, 6.7 and 5.5 times during agricultural burning periods compared with periods when agricultural waste burning is not performed. K+ was found mainly in the fine mode during agricultural burning. High nitrogen oxidation ratio was found during agricultural waste burning periods which might be caused by the conversion of Nitrogen dioxide (NO2) to NO3?. It is concluded that agricultural waste burning with low dispersion often causes high PM2.5 and gases pollutant events.

Man-Ting Cheng; Chuen-Liang Horng; Yi-Ru Su; Li-Kai Lin; Yu-Chi Lin; Charles C.-K. Chou

2009-01-01T23:59:59.000Z

373

Interference mechanisms of acoustic/convective disturbances in a swirl-stabilized lean-premixed combustor  

Science Journals Connector (OSTI)

Interference mechanisms of acoustic/convective disturbances were experimentally investigated in a swirl-stabilized lean-premixed gas turbine combustor operated with natural gas fuel and air at atmospheric pressure and elevated temperature. Interference between azimuthal and acoustic velocity disturbances at high-amplitude limit cycle oscillations is characterized in detail as a function of axial swirler location, oscillation frequency, and mean nozzle velocity. We show that both the frequency and the intensity of self-excited instabilities in a model gas turbine combustor are correlated with axial swirler position, which indicates that a vorticity wave generated at the swirl vanes is a primary source of convective disturbances in the absence of equivalence ratio nonuniformities. Flame transfer function measurements confirm that the linear/nonlinear heat release response is a strong function of axial swirler location, even when unforced flame structures remain unchanged. The key parameter controlling this phenomenon is the phase difference between the azimuthal and acoustic velocity perturbations at the combustor dump plane; the phase difference is affected by swirler location, frequency, mean velocity, and the speed of sound. It was found that out-of-phase interference between azimuthal and acoustic velocity disturbances at the combustor inlet yields large flame angle fluctuations in relation to swirl number fluctuations, and therefore the formation of a coherent structure is hindered due to high kinematic viscosity within the vortex formation region. In-phase interference mechanisms, on the other hand, lead to high-amplitude limit cycle oscillations. This interference mechanism is then explored in the presence of temporal equivalence ratio nonuniformities, in which two different sources of convective mechanisms should be considered simultaneously in connection with acoustic velocity perturbations and the vortex dynamics. Results reveal that equivalence ratio oscillation has a significant effect on the strength of combustion-acoustic interactions. Strong self-excited instabilities of partially premixed flames are produced by in-phase interactions between acoustic velocity and equivalence ratio oscillations, which are governed by fuel injection location, frequency, mean nozzle velocity, and fuel injector impedance. At this phase condition, unburned reactants with high equivalence ratio impinge on the flame front with high inlet velocity, potentially causing large fluctuations of heat release rate.

Kyu Tae Kim; Dom A. Santavicca

2013-01-01T23:59:59.000Z

374

Multilayer ultra-high-temperature ceramic coatings  

DOE Patents (OSTI)

A coated carbon-carbon composite material with multiple ceramic layers to provide oxidation protection from ultra-high-temperatures, where if the carbon-carbon composite material is uninhibited with B.sub.4C particles, then the first layer on the composite material is selected from ZrB.sub.2 and HfB.sub.2, onto which is coated a layer of SiC coated and if the carbon-carbon composite material is inhibited with B.sub.4C particles, then protection can be achieved with a layer of SiC and a layer of either ZrB.sub.2 and HfB.sub.2 in any order.

Loehman, Ronald E. (Albuquerque, NM); Corral, Erica L. (Tucson, AZ)

2012-03-20T23:59:59.000Z

375

Ultra-accelerated natural sunlight exposure testing  

DOE Patents (OSTI)

Process and apparatus for providing ultra accelerated natural sunlight exposure testing of samples under controlled weathering without introducing unrealistic failure mechanisms in exposed materials and without breaking reciprocity relationships between flux exposure levels and cumulative dose that includes multiple concurrent levels of temperature and relative humidity at high levels of natural sunlight comprising: a) concentrating solar flux uniformly; b) directing the controlled uniform sunlight onto sample materials in a chamber enclosing multiple concurrent levels of temperature and relative humidity to allow the sample materials to be subjected to accelerated irradiance exposure factors for a sufficient period of time in days to provide a corresponding time of about at least a years worth of representative weathering of the sample materials.

Jorgensen, Gary J. (Pine, CO); Bingham, Carl (Lakewood, CO); Goggin, Rita (Englewood, CO); Lewandowski, Allan A. (Evergreen, CO); Netter, Judy C. (Westminster, CO)

2000-06-13T23:59:59.000Z

376

Ultra supercritical turbines--steam oxidation  

SciTech Connect

Ultra supercritical (USC) power plants offer the promise of higher efficiencies and lower emissions, which are goals of the U.S. Department of Energy?s Advanced Power Systems Initiatives. Most current coal power plants in the U.S. operate at a maximum steam temperature of 538?C. However, new supercritical plants worldwide are being brought into service with steam temperatures of up to 620?C. Current Advanced Power Systems goals include coal generation at 60% efficiency, which would require steam temperatures of up to 760?C. This research examines the steamside oxidation of advanced alloys for use in USC systems, with emphasis placed on alloys for high- and intermediate-pressure turbine sections. Initial results of this research are presented.

Holcomb, Gordon R.; Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Ziomek-Moroz, Margaret; Alman, David E.

2004-01-01T23:59:59.000Z

377

Ultra-high density diffraction grating  

SciTech Connect

A diffraction grating structure having ultra-high density of grooves comprises an echellette substrate having periodically repeating recessed features, and a multi-layer stack of materials disposed on the echellette substrate. The surface of the diffraction grating is planarized, such that layers of the multi-layer stack form a plurality of lines disposed on the planarized surface of the structure in a periodical fashion, wherein lines having a first property alternate with lines having a dissimilar property on the surface of the substrate. For example, in one embodiment, lines comprising high-Z and low-Z materials alternate on the planarized surface providing a structure that is suitable as a diffraction grating for EUV and soft X-rays. In some embodiments, line density of between about 10,000 lines/mm to about 100,000 lines/mm is provided.

Padmore, Howard A.; Voronov, Dmytro L.; Cambie, Rossana; Yashchuk, Valeriy V.; Gullikson, Eric M.

2012-12-11T23:59:59.000Z

378

Microsoft Word - Deep-Burn awardee team members _2_.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

DEEP-BURN AWARDEES RECIPIENTS RECIPIENT TEAM MEMBERS Advanced Modeling and Simulation Capability R&D for $1 million University of Chicago Argonne Argonne National Laboratory Oak Ridge National Laboratory Lawrence Livermore National Lab University of Michigan Transuranic Management Capabilities R&D for $6.3 million Battelle Energy Alliance, LLC Idaho National Laboratory Oak Ridge National Laboratory Argonne National Laboratory Los Alamos National Laboratory University of California, Berkeley University of Wisconsin University of Tennessee University of Nevada Las Vegas North Carolina State University Georgia Institute of Technology Pennsylvania State University Idaho State University Texas A&M University Logos Technologies

379

Height Replacement of Selected Woody Plants Following Burning or Shredding.  

E-Print Network (OSTI)

for effectively suppressing w e y plants to levels which allow im- proved forage responses from pastures. Although few woody plants are killed by cool-season burns, the live topgrowth is usu- ally r e d u d to near ground level and forage production... descriptions by site. The Claypan Prairie range site is typified by. kparita soils on nemly levd to gerrtlp&loping up- lands in claw p x b i t y to small d r d n a ~ e s . ' Slopes p ubally less than f krceiitt but -On- ally inmeam to-3 m e h t . Wfls...

Hamilton, W.T.; Kitchen, L.M.; Scifres, C.J.

1981-01-01T23:59:59.000Z

380

Testing of the Burns-Milwaukee`s Sun Oven  

SciTech Connect

A Burns-Milwaukee Sun Oven was tested at Sandia`s Solar Thermal Test Facility. It was instrumented with five type K thermocouples to determine warm-up rates when empty and when a pot containing two liters of water was placed inside. It reached inside air temperatures above 160{degrees}C (320{degrees}F). It heated two liters of water from room temperatures to 80{degrees}C, (175{degrees}F), in 75 minutes. Observations were also made on the cooling and reheating rates during a cloud passage. The adverse effects of wind on operation of the solar oven was also noted.

Moss, T.A.

1997-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

TIBER: Tokamak Ignition/Burn Experimental Research. Final design report  

SciTech Connect

The Tokamak Ignition/Burn Experimental Research (TIBER) device is the smallest superconductivity tokamak designed to date. In the design plasma shaping is used to achieve a high plasma beta. Neutron shielding is minimized to achieve the desired small device size, but the superconducting magnets must be shielded sufficiently to reduce the neutron heat load and the gamma-ray dose to various components of the device. Specifications of the plasma-shaping coil, the shielding, coaling, requirements, and heating modes are given. 61 refs., 92 figs., 30 tabs. (WRF)

Henning, C.D.; Logan, B.G.; Barr, W.L.; Bulmer, R.H.; Doggett, J.N.; Johnson, B.M.; Lee, J.D.; Hoard, R.W.; Miller, J.R.; Slack, D.S.

1985-11-01T23:59:59.000Z

382

Emissions from Small-Scale Burns of Simulated Deployed U.S. Military Waste  

Science Journals Connector (OSTI)

Piles of simulated military waste were constructed, burned, and emissions sampled at the U.S. Environmental Protection Agency (EPA) Open Burn Testing Facility (OBTF), Research Triangle Park, NC. ... The lack of sufficient and safe off-base waste treatment methods in the deployed environment, combined with limited numbers of waste management devices such as incinerators, have forced continued reliance on open burning in “burn pits” as an expedient method of volume reduction and treatment for solid waste during the conflicts in Afghanistan and Iraq. ... (4) In response, the U.S. Department of Defense (DOD) has published guidance regulating burn pit operations, including limiting their use and prohibiting the burning of recyclable plastics. ...

Brian D. Woodall; Dirk P. Yamamoto; Brian K. Gullett; Abderrahmane Touati

2012-09-04T23:59:59.000Z

383

Facile Catalytic Combustion of Rice Husk and Burning Temperature Dependence of the Ashes  

Science Journals Connector (OSTI)

Facile Catalytic Combustion of Rice Husk and Burning Temperature Dependence of the Ashes ... However, these traditional applications are of low profits, and in many cases, RH is discarded as agricultural waste, which is mostly burned in open heaps (8). ... The utilization of a vibrofluidized bed of catalysts makes it possible to burn RH at decreased temperatures (10), but the millimetric catalyst particles are ill dispersed over the RH pieces, limiting the catalytic effect. ...

Liangming Xiong; Edson H. Sekiya; Shigetaka Wada; Kazuya Saito

2009-10-27T23:59:59.000Z

384

A University Consortium on Low Temperature Combustion (LTC) for...  

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

A University Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines A University Consortium on High Pressure, Lean Combustion for Efficient and Clean IC...

385

Climate Impacts of Biomass Burning Aerosols: Constraining the Chemicophysical Properties of Fresh and Aged Particles.  

E-Print Network (OSTI)

??Biomass burning is one of the largest contributors of particles and trace gases to the atmosphere. This work focuses on constraining the impacts that biomass… (more)

Giordano, Michael

2014-01-01T23:59:59.000Z

386

Experimental restoration treatments for burn pile fire scars in conifer forests of the Front Range, Colorado.  

E-Print Network (OSTI)

??Drastic changes in soil physical, chemical, and biotic properties following slash pile burning and their lasting effects on vegetation cover have been well documented in… (more)

Shanklin, Amber

2014-01-01T23:59:59.000Z

387

Burning Behaviour of Heavy Gas Oil from the Canadian Oil Sands.  

E-Print Network (OSTI)

??This work presents the first systematic investigation and characterisation of the burning behaviour of untreated heavy gas oil from the Canadian oil sands, an intermediate… (more)

Mulherin, Patrick

2014-01-01T23:59:59.000Z

388

Indoor Levels of Polycyclic Aromatic Hydrocarbons in Homes with or without Wood Burning for Heating  

Science Journals Connector (OSTI)

Indoor Levels of Polycyclic Aromatic Hydrocarbons in Homes with or without Wood Burning for Heating ... One wood-burning home had a boiler located in a shelter outside the house and was excluded from the study. ... The concentrations of BaP in the wood-burning homes (0.52 ng/m3) were within the range reported for an American home during operation of different airtight wood stoves (20) and for seven homes during wood burning in airtight wood stoves (21). ...

Pernilla Gustafson; Conny Östman; Gerd Sällsten

2008-06-07T23:59:59.000Z

389

Burning biodiversity: Woody biomass use by commercial and subsistence groups in western Uganda's forests  

E-Print Network (OSTI)

Burning biodiversity: Woody biomass use by commercial and subsistence groups in western Uganda biomass energy from natural forests in western Uganda. While domestic consumers use the most species

Kammen, Daniel M.

390

Application of the microwave technique for burning-rate measurement in high-energy composite materials  

Science Journals Connector (OSTI)

A facility designed to determine the current burning rate of high-energy composite materials is described. Methodical aspects of processing the...

A. S. Zharkov; M. G. Potapov; V. P. Lushev…

391

Interannual variability in global biomass burning emissions from 1997 to 2004  

E-Print Network (OSTI)

F. : Retrieval of biomass combustion rates and totals fromM. C. : Fuel biomass and combustion factors associated within global biomass burning emissions combustion factor.

van der Werf, G. R; Randerson, J. T; Giglio, L.; Collatz, G. J; Kasibhatla, P. S; Arellano, A. F

2006-01-01T23:59:59.000Z

392

Observations of nonmethane organic compounds during ARCTAS - Part 1: Biomass burning emissions and plume enhancements  

E-Print Network (OSTI)

from smoldering combustion of biomass measured by open-pathorganic species from biomass combustion, J. Geophys. Res. ,Biomass Burning Plume Origin Plume Age, Days a Modified Combustion

2011-01-01T23:59:59.000Z

393

Research on methanol-burning, two-stroke engines  

SciTech Connect

In looking for the possibility of burning methanol in the two-stroke marine diesel engine, Mitsubishi decided that its investigations would be for a pure methanol-burning engine. Since ignition of methanol by the straight forward diesel cycle is not attainable, Mitsubishi decided to use glow plugs for ignition. The result has been the adaptation of the 450 mm bore test engine, at Nagasaki, with a special cylinder head carrying two methanol precombustion chambers and two main methanol injectors. Results from the tests at Nagasaki showed that NO[sub x] formation was no more than 500 ppm at full load, while thermal efficiency was at least equal to that of a straight diesel engine. A base model ship for Japanese coastal waters operation is being studied. Plans of the ship have been sent to the Japanese classification society, NK, and they include a separate methanol treatment room and storage tanks. The committee concluded that a methanol-engined ship of about 1000 dwt can be operated economically with a relatively small increase in freight rate. Lower crew costs are part of that equation, because of an expected decrease in machinery maintenance. Conceptual approval for the project is now being sought with NK. 2 figs.

Wilson, K.

1994-04-01T23:59:59.000Z

394

Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra-Deepwater and Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program The Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research Program, launched by the Energy Policy Act of 2005 (EPAct), is a public/private partnership valued at $400 million over eight years that is designed to benefit consumers by developing technologies to increase America's domestic oil and gas production and reduce the Nation's dependency on foreign imports. Key aspects of the program include utilizing a non-profit consortium to manage the research, establishing two federal advisory committees, and funding of $50 million per year derived from royalties, rents, and bonuses from federal onshore

395

Ultra-Efficient Home Design | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra-Efficient Home Design Ultra-Efficient Home Design Ultra-Efficient Home Design April 26, 2012 - 9:52am Addthis All Kaupuni Village homes in Oahu, Hawaii, incorporate energy efficiency and renewable energy technologies to produce as much energy as they consume. Credit: Kenneth Kelly, NREL. All Kaupuni Village homes in Oahu, Hawaii, incorporate energy efficiency and renewable energy technologies to produce as much energy as they consume. Credit: Kenneth Kelly, NREL. What does this mean for me? Lower energy bills and improved comfort Energy reliability and security Environmental sustainability How does it work? Ultra-efficient home design reduces home energy use and meets all or part of the reduced energy requirements with on-site renewable energy systems, such as solar water heating and solar electricity.

396

Ultra-Bright Source Of Polarization-Entangled Photons  

NLE Websites -- All DOE Office Websites (Extended Search)

Ultra-Bright Source Of Polarization-Entangled Photons Ultra-Bright Source Of Polarization-Entangled Photons Ultra-Bright Source Of Polarization-Entangled Photons Utilizing the process of spontaneous parametric down-conversion in a novel crystal geometry, a source of polarization-entangled photon pairs has been provided that is more than ten times brighter, per unit of pump power, than previous sources, with another factor of 30 to 75 expected to be readily achievable. Available for thumbnail of Feynman Center (505) 665-9090 Email Ultra-Bright Source Of Polarization-Entangled Photons Utilizing the process of spontaneous parametric down-conversion in a novel crystal geometry, a source of polarization-entangled photon pairs has been provided that is more than ten times brighter, per unit of pump power, than previous sources, with another factor of 30 to 75 expected to be readily

397

Range-energy relation for ultra-relativistic muons  

Science Journals Connector (OSTI)

A range-energy relation for ultra-relativistic muons is calculated: 1) extending the calculation...4...GeV; 2) emploing the Murota-Ueda-Tanaka theory, for the pair production energy loss; 3) utilizing for the nuc...

C. Castagnoli; A. De Maeco; R. Scrimaglio

1964-01-01T23:59:59.000Z

398

Muons of very and ultra-high energy cosmic rays  

Science Journals Connector (OSTI)

In many cosmic rays experiments at very and ultra-high energies, an excess of muons (including those of very high energy, >100 TeV) is observed that cannot ... compositions, and especially the observed excesses o...

A. G. Bogdanov; R. P. Kokoulin…

2013-11-01T23:59:59.000Z

399

Design of wind turbines with Ultra-High Performance Concrete  

E-Print Network (OSTI)

Ultra-High Performance Concrete (UHPC) has proven an asset for bridge design as it significantly reduces costs. However, UHPC has not been applied yet to wind turbine technology. Design codes do not propose any recommendations ...

Jammes, François-Xavier

2009-01-01T23:59:59.000Z

400

Synthesis and fluid interaction of ultra long carbon nanotubes  

E-Print Network (OSTI)

The successful integration for carbon nanotubes in future electronic applications relies on advances in their synthesis. In this work optimization of growth parameters was conducted to obtain ultra long carbon nanotubes. ...

Hofmann, Mario

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

ITP Industrial Distributed Energy: Ultra Efficient Combined Heat...  

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

Ultra Efficient Combined Heat, Hydrogen, and Power System A High-Temperature Fuel Cell to Provide On-site Process Reducing Gas, Clean Power, and Heat The project will utilize...

402

Ultra-weak sector, Higgs boson mass, and the dilaton  

SciTech Connect

The Higgs boson mass may arise from a portal coupling to a singlet field $\\sigma$ which has a very large VEV $f \\gg m_\\text{Higgs}$. This requires a sector of "ultra-weak" couplings $\\zeta_i$, where $\\zeta_i \\lesssim m_\\text{Higgs}^2 / f^2$. Ultra-weak couplings are technically naturally small due to a custodial shift symmetry of $\\sigma$ in the $\\zeta_i \\rightarrow 0$ limit. The singlet field $\\sigma$ has properties similar to a pseudo-dilaton. We engineer explicit breaking of scale invariance in the ultra-weak sector via a Coleman-Weinberg potential, which requires hierarchies amongst the ultra-weak couplings.

Allison, Kyle [University of Oxford; Hill, Christopher T. [FNAL; Ross, Graham G. [University of Oxford

2014-11-01T23:59:59.000Z

403

An ultra miniature pinch-focus discharge Leopoldo Soto1  

E-Print Network (OSTI)

Abstract As a way to investigate the minimum energy to produce a pinch plasma focus discharge, an ultra optimized plasma foci. It is interesting note that plasma parameters practically constant in plasma focus

Paris-Sud XI, Université de

404

Construction of an ultra-low temperature scanning tunneling microscope  

Science Journals Connector (OSTI)

We describe designs and specifications of an ultra-low temperature scanning tunneling microscope developed at ... works over a wide temperature range between 90 mK and 300 K with atomic resolution as...

Hiroshi Fukuyama; Hiroki Tan; Tetsuya Handa…

1996-01-01T23:59:59.000Z

405

Studying coherence in ultra-cold atomic gases  

E-Print Network (OSTI)

This thesis will discuss the study of coherence properties of ultra-cold atomic gases. The atomic systems investigated include a thermal cloud of atoms, a Bose-Einstein condensate and a fermion pair condensate. In each ...

Miller, Daniel E. (Daniel Edward)

2007-01-01T23:59:59.000Z

406

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

21 - 10030 of 29,416 results. 21 - 10030 of 29,416 results. Download CX-007613: Categorical Exclusion Determination Next Generation Ultra Lean Burn Powertrain CX(s) Applied: A9 Date: 01/10/2012 Location(s): California Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-007613-categorical-exclusion-determination Download CX-007614: Categorical Exclusion Determination Next Generation Ultra Lean Burn Powertrain CX(s) Applied: B3.6 Date: 01/10/2012 Location(s): Michigan Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-007614-categorical-exclusion-determination Download CX-007615: Categorical Exclusion Determination Henderson Family Young Mens Christian Association CX(s) Applied: B5.1, B5.2 Date: 01/10/2012 Location(s): North Carolina

407

Categorical Exclusion Determinations: National Energy Technology Laboratory  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

January 10, 2012 January 10, 2012 CX-007615: Categorical Exclusion Determination Henderson Family Young Mens Christian Association CX(s) Applied: B5.1, B5.2 Date: 01/10/2012 Location(s): North Carolina Offices(s): National Energy Technology Laboratory January 10, 2012 CX-007614: Categorical Exclusion Determination Next Generation Ultra Lean Burn Powertrain CX(s) Applied: B3.6 Date: 01/10/2012 Location(s): Michigan Offices(s): National Energy Technology Laboratory January 10, 2012 CX-007613: Categorical Exclusion Determination Next Generation Ultra Lean Burn Powertrain CX(s) Applied: A9 Date: 01/10/2012 Location(s): California Offices(s): National Energy Technology Laboratory January 10, 2012 CX-007612: Categorical Exclusion Determination Geological Characterization of the South Georgia Rift Basin for Source

408

Reply to comment by J. L. Lean on ``Estimated solar contribution to the global surface warming using the ACRIM TSI satellite composite''  

E-Print Network (OSTI)

Reply to comment by J. L. Lean on ``Estimated solar contribution to the global surface warming contributed at least 10­30% of the 0.40 ± 0.04 K global surface warming) depends crucially on the adoption, because it lacks any upward trend between solar cycles 21­23, the solar contribution to the global warming

Scafetta, Nicola

409

Ultra-Scale Computing for Emergency Evacuation  

SciTech Connect

Emergency evacuations are carried out in anticipation of a disaster such as hurricane landfall or flooding, and in response to a disaster that strikes without a warning. Existing emergency evacuation modeling and simulation tools are primarily designed for evacuation planning and are of limited value in operational support for real time evacuation management. In order to align with desktop computing, these models reduce the data and computational complexities through simple approximations and representations of real network conditions and traffic behaviors, which rarely represent real-world scenarios. With the emergence of high resolution physiographic, demographic, and socioeconomic data and supercomputing platforms, it is possible to develop micro-simulation based emergency evacuation models that can foster development of novel algorithms for human behavior and traffic assignments, and can simulate evacuation of millions of people over a large geographic area. However, such advances in evacuation modeling and simulations demand computational capacity beyond the desktop scales and can be supported by high performance computing platforms. This paper explores the motivation and feasibility of ultra-scale computing for increasing the speed of high resolution emergency evacuation simulations.

Bhaduri, Budhendra L [ORNL; Nutaro, James J [ORNL; Liu, Cheng [ORNL; Zacharia, Thomas [ORNL

2010-01-01T23:59:59.000Z

410

Optical interferometry at ultra low temperatures  

SciTech Connect

We have developed optical, interferometric methods for investigations of interfaces at ultra low temperatures. In our scheme conventional optical windows are avoided: laser illumination (He-Ne) is guided into the cryostat via a single-mode optical fiber and images are taken using a CCD sensor mounted inside the 4-K vacuum can. A real-time video camera has been successfully used in investigations of superfluid {sup 3}He down to 0.6 mK whereas a slow-scan camera has been employed for optimal contrast in low-intensity imaging of liquid/solid interfaces (reflection coefficient {approximately}10{sup -6}). The investigated topics include (1) superfluid {sup 3}He surface in rotation and during rapid deceleration, (2) hydrodynamics of thin superfluid {sup 3}He layers, (3) superfluid/solid interface in {sup 4}He, and (4) wetting of superfluid {sup 4}He by normal {sup 3}He in phase separated mixtures. A vertical resolution of 10 nm and even below has been achieved in these studies.

Hakonen, P.J.; Alles, H.; Babkin, A.V.; Ruutu, J.P. [Helsinki Univ. of Technology, Espoo (Finland)

1995-10-01T23:59:59.000Z

411

Flames in Type Ia Supernova: Deflagration-Detonation Transition in the Oxygen Burning Flame  

E-Print Network (OSTI)

Flames in Type Ia Supernova: Deflagration-Detonation Transition in the Oxygen Burning Flame S. E of these regions can be supersonic and could initiate a detonation. Subject headings: supernovae: general a late time transition of the thermonuclear burning to a detonation wave (e.g., Hoflich et al. 1995

412

Annual Broomweed [Gutierrezia dracuncu-Zoides(DC.) Blake] Response to Burning and  

E-Print Network (OSTI)

GENE TOWNE AND CLENTON OWENSBY The influence of artfficial mulch additions and mulch removal with fall mulch additions, and to mulch removal with fall, winter, and spring burning. Study Area and MethodsAnnual Broomweed [Gutierrezia dracuncu- Zoides(DC.) Blake] Response to Burning and Mulch Addition

Owensby, Clenton E.

413

Soot from the burning of fossil fuels and solid biofuels contributes far more to global  

E-Print Network (OSTI)

Soot from the burning of fossil fuels and solid biofuels contributes far more to global warming Researchers ScienceDaily (July 30, 2010) -- Soot from the burning of fossil fuels and solid biofuels analyzed the impacts of soot from fossil fuels -- diesel, coal, gasoline, jet fuel -- and from solid

414

Exploring the Frontiers of Burning Science Dale Meade and the FIRE Team  

E-Print Network (OSTI)

Exploring the Frontiers of Burning Science Dale Meade and the FIRE Team ITC-12 / APFA '01 Meeting, and it produces negligible nuclear waste or pollutants." What should we do to be ready? By end of January conduct the base fusion sciences program 2. Directs DOE to submit a plan for construction of a U.S. Burning Plasma

415

Biomass Burning in the Tropics: Impact on Atmospheric Chemistry and Biogeochemical Cycles  

Science Journals Connector (OSTI)

...that the prompt release of CO2 to the...as the net CO2 release from deforestation...somewhat, as a fraction of the burned...formation in fires. Fearnside and...burning also releases another greenhouse...for a greater fraction of the increase...mid-latitude forest fires. Considering...

Paul J. Crutzen; Meinrat O. Andreae

1990-12-21T23:59:59.000Z

416

Design and Optimization of Future Aircraft for Assessing the Fuel Burn Trends of Commercial  

E-Print Network (OSTI)

aircraft R1 Maximum payload at maximum range SFC Engine specific fuel consumption Sref Reference area STADesign and Optimization of Future Aircraft for Assessing the Fuel Burn Trends of Commercial Francisco, CA 94104, U.S.A. Accurately predicting the fuel burn performance and CO2 emissions of future

Alonso, Juan J.

417

Interannual and seasonal variability of biomass burning emissions constrained by satellite observations  

E-Print Network (OSTI)

--composition and chemistry; KEYWORDS: Biomass burning, interannual seasonal variation Citation: Duncan, B. N., R. V. Martin, A. C. Staudt, R. Yevich, and J. A. Logan, Interannual and seasonal variability of biomass burning [Malingreau, 1990; Stricker et al., 1995; Hsu et al., 1996; Cooke et al., 1996; Justice et al., 1996; Herman

Jacob, Daniel J.

418

Formation of Ozone and Growth of Aerosols in Young Smoke Plumes from Biomass Burning  

E-Print Network (OSTI)

Physics and Chemistry Abstract The combustion of biomass is a major source of atmospheric trace gasesFormation of Ozone and Growth of Aerosols in Young Smoke Plumes from Biomass Burning by Matthew and Planetary Sciences #12;Formation of Ozone and Growth of Aerosols in Young Smoke Plumes from Biomass Burning

419

An assessment of biofuel use and burning of agricultural waste in the developing world Rosemarie Yevich  

E-Print Network (OSTI)

, and population densities influence these types of biomass burning, simple glo- bal characterizations was used in the developing world in 1985; of this 66% was burned in Asia, and 21% and 13% in Africa%, 29%, and 13% of biofuel use in Asia, Latin America, and Africa, and 41% and 51% of the biofuel use

Jacob, Daniel J.

420

TAILORING THE PLATEAU BURNING RATES OF COMPOSITE PROPELLANTS BY THE USE OF NANOSCALE ADDITIVES  

E-Print Network (OSTI)

(223 ?m) and 30% or 20% binder composed of IPDI-cured HTPB with Tepanol. Propellants’ burning rates were tested using a strand bomb between 500 and 2500 psi (34.0-170.1 atm). Analysis of the burning rate data shows that the crystal phase and synthesis...

Stephens, Matthew

2010-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Tailoring the plateau burning rates of composite propellants by the use of nanoscale additives  

E-Print Network (OSTI)

(223 ?m) and 30% or 20% binder composed of IPDI-cured HTPB with Tepanol. Propellants’ burning rates were tested using a strand bomb between 500 and 2500 psi (34.0-170.1 atm). Analysis of the burning rate data shows that the crystal phase and synthesis...

Stephens, Matthew Aaron

2009-05-15T23:59:59.000Z

422

TIME-VARYING FLAME IONIZATION SENSING APPLIED TO NATURAL GAS AND PROPANE BLENDS IN A PRESSURIZED LEAN PREMIXED (LPM) COMBUSTOR  

SciTech Connect

In-situ monitoring of combustion phenomena is a critical need for optimal operation and control of advanced gas turbine combustion systems. The concept described in this paper is based on naturally occurring flame ionization processes that accompany the combustion of hydrocarbon fuels. Previous work has shown that flame ionization techniques may be applied to detect flashback, lean blowout, and some aspects of thermo-acoustic combustion instabilities. Previous work has focused on application of DC electric fields. By application of time-varying electric fields, significant improvements to sensor capabilities have been observed. These data have been collected in a lean premixed combustion test rig operating at 0.51-0.76 MPa (5-7.5 atm) with air preheated to 588 K (600°F). Five percent of the total fuel flow is injected through the centerbody tip as a diffusion pilot. The fuel composition is varied independently by blending approximately 5% (volume) propane with the pipeline natural gas. The reference velocity through the premixing annulus is kept constant for all conditions at a nominal value of 70 m/s. The fuel-air equivalence ratio is varied independently from 0.46 – 0.58. Relative to the DC field version, the time-varying combustion control and diagnostic sensor (TV-CCADS) shows a significant improvement in the correlation between the measured flame ionization current and local fuel-air equivalence ratio. In testing with different fuel compositions, the triangle wave data show the most distinct change in flame ionization current in response to an increase in propane content. Continued development of this sensor technology will improve the capability to control advanced gas turbine combustion systems, and help address issues associated with variations in fuel supplies.

D. L. Straub; B. T. Chorpening; E. D. Huckaby; J. D. Thornton; W. L. Fincham

2008-06-13T23:59:59.000Z

423

Mercury Control Technologies for Electric Utilities Burning Lignite Coal  

NLE Websites -- All DOE Office Websites (Extended Search)

Mercury control technologies for Mercury control technologies for electric utilities Burning lignite coal Background In partnership with a number of key stakeholders, the U.S. Department of Energy's Office of Fossil Energy (DOE/FE), through its National Energy Technology Laboratory (NETL), has been carrying out a comprehensive research program since the mid-1990s focused on the development of advanced, cost-effective mercury (Hg) control technologies for coal-fired power plants. Mercury is a poisonous metal found in coal, which can be harmful and even toxic when absorbed from the environment and concentrated in animal tissues. Mercury is present as an unwanted by-product of combustion in power plant flue gases, and is found in varying percentages in three basic chemical forms(known as speciation): particulate-bound mercury, oxidized

424

Advanced atomization concept for CWF burning in small combustors  

SciTech Connect

The present project involves the second phase of research on a new concept in coal-water fuel (CWF) atomization that is applicable to burning in small combustors. It is intended to address the most important problem associated with CWF combustion; i.e., production of small spray droplets in an efficient manner by an atomization device. Phase 1 of this work was successfully completed with the development of an opposed-jet atomizer that met the goals of the first contract. Performance as a function of operating conditions was measured, and the technical feasibility of the device established in the Atlantic Research Atomization Test Facility employing a Malvern Particle Size Analyzer. Testing then proceeded to a combustion stage in a test furnace at a firing rate of 0.5 to 1.5 MMBtu/H.

Heaton, H.; McHale, E.

1991-01-01T23:59:59.000Z

425

Explosive hydrogen burning during type I X-ray bursts  

SciTech Connect

Explosive hydrogen burning in type I X-ray bursts (XRBs) is driven by charged particle reactions creating isotopes with masses up to A {approx} 100. Since charged particle reactions in a stellar environment are very temperature sensitive, we use a realistic time-dependent general relativistic and self-consistent model of type I X-ray bursts to provide accurate values of the burst temperatures and densities. This allows a detailed and accurate time-dependent identification of the reaction flow from the surface layers through the convective region and the ignition region to the neutron star ocean. Using this, we determine the relative importance of specific nuclear reactions in the X-ray burst.

Fisker, J L; Schatz, H; Thielemann, F

2007-06-11T23:59:59.000Z

426

Pellet fuelling requirements to allow self-burning on a helical-type fusion reactor  

Science Journals Connector (OSTI)

Pellet refuelling conditions to sustain a self-burning plasma have been investigated by extrapolating the confinement property of the LHD plasma, which appears to be governed by a gyro-Bohm-type confinement property. The power balance of the burning plasma is calculated taking into account the profile change with pellet deposition and subsequent density relaxation. A self-burning plasma is achieved within the scope of conventional pellet injection technology. However, a very small burn-up rate of 0.18% is predicted. Higher velocity pellet injection is effective in improving the burn-up rate by deepening particle deposition, whereas deep fuelling leads to undesirable fluctuation of the fusion output.

R. Sakamoto; J. Miyazawa; H. Yamada; S. Masuzaki; A. Sagara; the FFHR Design Group

2012-01-01T23:59:59.000Z

427

Pollution Caused by Agricultural Waste Burning and Possible Alternate Uses of Crop Stubble: A Case Study of Punjab  

Science Journals Connector (OSTI)

Crop residue burning is one among the many sources of air pollution. Burning of farm waste causes severe pollution of land and water ... Straw carbon, nitrogen and sulphur are completely burnt and lost to the atm...

Parmod Kumar; Laxmi Joshi

2013-01-01T23:59:59.000Z

428

Requirements: Date of Event: ___________ You must obtain a signed burn permit from Campus Fire Safety or Public Safety.  

E-Print Network (OSTI)

to obtain a permit. Open burning must be 50 feet away from nearest field, brush, or structure. The fire pit: Open burning - bonfires, camp fires, open pits, etc. Only an approved enclosed fire pit structure canRequirements: Date of Event: ___________ You must obtain a signed burn permit from Campus Fire

Royer, Dana

429

Oxidation of ketone groups in transported biomass burning aerosol from the 2008 Northern California Lightning Series fires  

E-Print Network (OSTI)

, Ketone, Biomass burning, Fossil fuel combustion 1. Introduction Globally the two largest sources of primary organic aerosol are fossil fuel combustion (2-28 Tg C yr-1 ) and biomass burning (31-45 Tg C yr-1Oxidation of ketone groups in transported biomass burning aerosol from the 2008 Northern California

Russell, Lynn

430

Characterizing the Aging of Biomass Burning Organic Aerosol by Use of Mixing Ratios: A Meta-analysis of Four Regions  

E-Print Network (OSTI)

and combustion conditions in determining OA loadings from biomass burning. 1. INTRODUCTION Biomass burningCharacterizing the Aging of Biomass Burning Organic Aerosol by Use of Mixing Ratios: A Meta: Characteristic organic aerosol (OA) emission ratios (ERs) and normalized excess mixing ratios (NEMRs) for biomass

Jimenez, Jose-Luis

431

Oxidation of ketone groups in transported biomass burning aerosol from the 2008 Northern California Lightning Series fires  

E-Print Network (OSTI)

., 2000), making SOA from fossil fuel combustion, biogenic, and biomass burning emissions a potentiallyOxidation of ketone groups in transported biomass burning aerosol from the 2008 Northern California in revised form 20 July 2010 Accepted 21 July 2010 Keywords: Organic carbon particles Ketone Biomass burning

Russell, Lynn

432

2008 Annual Plan for the Ultra-Deepwater and Unconventional Natural...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program 2008 Annual Plan for the Ultra-Deepwater and...

433

2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural...  

Energy Savers (EERE)

2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program 2007 Annual Plan for the Ultra-Deepwater and...

434

Microsoft PowerPoint - 15.1130_Jeff Baker_Final Ultra-High Efficiency...  

Office of Environmental Management (EM)

130Jeff BakerFinal Ultra-High Efficiency Commercial Buildings Microsoft PowerPoint - 15.1130Jeff BakerFinal Ultra-High Efficiency Commercial Buildings Microsoft PowerPoint -...

435

Hot Gas Filtration of Fine and Ultra fine Particles with Liquid...  

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

Hot Gas Filtration of Fine and Ultra fine Particles with Liquid Phase Sintered SiC Ceramic DPF Hot Gas Filtration of Fine and Ultra fine Particles with Liquid Phase Sintered SiC...

436

Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic Catalysts Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic Catalysts This presentation...

437

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ultra-Low Sulfur diesel Update & Future Light Duty Diesel Ultra-Low Sulfur diesel Update & Future Light Duty Diesel Presentation given at DEER 2006, August 20-24, 2006, Detroit,...

438

Influence of local waste burning on atmospheric aerosol properties in urban environment  

Science Journals Connector (OSTI)

Aerosols affect the radiative energy budget on both the regional and global scales. The wavelength-dependent aerosol optical depth (AOD) is a fundamental determinant of the amount by which extra-terrestrial incoming sunlight and outgoing terrestrial radiation are being attenuated in the atmosphere. The present study addresses the influence of local waste burning on aerosol characteristics, black carbon (BC) aerosol mass concentration and spectral solar irradiance using ground-based measurements over the tropical urban environment of Hyderabad, India. AOD has been observed to be maximum during burning days compared to normal days. Aerosol size spectra suggest bimodal distributions during pre-and post-burning periods and trimodal distributions during burning periods. Angstrom wavelength exponent estimated from spectral variation of AOD suggested dominance of accumulation mode particle loading during burning days compared to normal days. Diurnal variation of BC on normal days showed a broad nocturnal peak during ?20:00 to ?24:00 h with a maximum value of BC aerosol concentration of ?14,000 ng m?3 whereas on local waste burning days enormous increases in BC concentrations have been observed with a peak at ?60,000 ng m?3. Relative attenuation of global solar irradiance during burning days has been found to be of the order of 30% in the visible and 28% in the near-infrared regions. The results are discussed in detail in this paper.

K. Madhavi Latha; K.V.S. Badarinath

2006-01-01T23:59:59.000Z

439

Cereal waste burning pollution observed in the town of Vitoria (northern Spain)  

Science Journals Connector (OSTI)

Agricultural waste burning is a widespread practice throughout the world but there is little information about its pollutant impact. This paper deals with a preliminary study of the pollution observed in Vitoria (Northern Spain) caused by cereal waste burning. The mean hourly flux of pollutants produced by cereal waste burning fires can reach values of 1.4 kt of CO2, 13 t of TPM and 3 t of \\{NOx\\} in the area around Vitoria. Measurements obtained in the area of emission and inside fire plumes show high ratios (NO2/NOx) indicating that nitrogen oxides emitted by the source undergo a rapid transformation in the same area of emission. Results relating to aerosol composition collected in Vitoria during burning periods show an increase in the concentration of K+, NO3? and Cl? ions, that are inter-correlated. The modification of the ionic composition of aerosols also affects the chemistry of the rain collected in Vitoria. During the burning period, it is particularly noticeable that anthropogenic pollution (usually identifiable by the correlation between SO42? and NO3? concentrations) disappears, indicating the existence of an independent source of NO3? not linked to the SO42? source. Similar results were deduced studying BAPMON data collected in Spain during cereal waste burning. Finally, we note that ozone concentration measured at Vitoria is not affected by the pollution generated by the burning fires.

A. Ezcurra; I. Ortiz de Zárate; Pham Vhan Dhin; J.P. Lacaux

2001-01-01T23:59:59.000Z

440

Hole burning with pressure and electric field: A window on the electronic structure and energy transfer dynamics of bacterial antenna complexes  

SciTech Connect

Light-harvesting (LH) complexes of cyclic (C{sub n}) symmetry from photosynthetic bacteria are studied using absorption and high pressure- and Stark-hole burning spectroscopies. The B800 absorption band of LH2 is inhomogeneously broadened while the B850 band of LH2 and the B875 band of the LH1 complex exhibit significant homogeneous broadening due to ultra-fast inter-exciton level relaxation. The B800{r_arrow}B850 energy transfer rate of ({approximately}2 ps){sup {minus}1} as determined by hole burning and femtosecond pump-probe spectroscopies, is weakly dependent on pressure and temperature, both of which significantly affect the B800-B850 energy gap. The resilience is theoretically explained in terms of a modified Foerster theory with the spectral overlap provided by the B800 fluorescence origin band and weak vibronic absorption bands of B850. Possible explanations for the additional sub-picosecond relaxation channel of B800 observed with excitation on the blue side of B800 are given. Data from pressure and temperature dependent studies show that the B800 and B850 bacteriochlorophyll a (BChl a) molecules are weakly and strongly excitonically coupled, respectively, which is consistent with the X-ray structure of LH2. The B875 BChl a molecules are also strongly coupled. It is concluded that electron-exchange, in addition to electrostatic interactions, is important for understanding the strong coupling of the B850 and B875 rings. The large linear pressure shifts of {approximately}{minus}0.6 cm{sup {minus}1}/MPa associated with B850 and B875 can serve as important benchmarks for electronic structure calculations.

Wu, H.M.

1999-02-12T23:59:59.000Z

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Investigation of laser-driven proton acceleration using ultra-short, ultra-intense laser pulses  

SciTech Connect

We report optimization of laser-driven proton acceleration, for a range of experimental parameters available from a single ultrafast Ti:sapphire laser system. We have characterized laser-generated protons produced at the rear and front target surfaces of thin solid targets (15 nm to 90 {mu}m thicknesses) irradiated with an ultra-intense laser pulse (up to 10{sup 20} W Dot-Operator cm{sup -2}, pulse duration 30 to 500 fs, and pulse energy 0.1 to 1.8 J). We find an almost symmetric behaviour for protons accelerated from rear and front sides, and a linear scaling of proton energy cut-off with increasing pulse energy. At constant laser intensity, we observe that the proton cut-off energy increases with increasing laser pulse duration, then roughly constant for pulses longer than 300 fs. Finally, we demonstrate that there is an optimum target thickness and pulse duration.

Fourmaux, S.; Gnedyuk, S.; Lassonde, P.; Payeur, S.; Pepin, H.; Kieffer, J. C. [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada); Buffechoux, S.; Albertazzi, B. [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada); LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Capelli, D.; Antici, P. [LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Dipartimento SBAI, Sapienza, Universita di Roma, Via Scarpa 16, 00161 Roma (Italy); Levy, A.; Fuchs, J. [LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Lecherbourg, L.; Marjoribanks, R. S. [Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto, Ontario M5S 1A7 (Canada)

2013-01-15T23:59:59.000Z

442

Emission and transport of cesium-137 from boreal biomass burning in the summer of 2010  

SciTech Connect

While atmospheric concentrations of cesium-137 have decreased since the nuclear testing era, resuspension of Cs-137 during biomass burning provides an ongoing emission source. The summer of 2010 was an intense biomass burning season in western Russia, with high levels of particulate matter impacting air quality and visibility. A radionuclide monitoring station in western Russia shows enhanced airborne Cs-137 concentrations during the wildfire period. Since Cs-137 binds to aerosols, satellite observations of aerosols and fire occurrences can provide a global-scale context for Cs-137 emissions and transport during biomass burning events.

Strode, S.; Ott, Lesley E.; Pawson, Steven; Bowyer, Ted W.

2012-05-09T23:59:59.000Z

443

Corrective Action Plan for Corrective Action Unit 490: Station 44 Burn Area, Tonopah Test Range, Nevada  

SciTech Connect

Corrective Action Unit (CAU) 490, Station 44 Burn Area is located on the Tonopah Test Range (TTR). CAU 490 is listed in the Federal Facility Agreement and Consent Order (FFACO, 1996) and includes for Corrective Action Sites (CASs): (1) Fire Training Area (CAS 03-56-001-03BA); (2) Station 44 Burn Area (CAS RG-56-001-RGBA); (3) Sandia Service Yard (CAS 03-58-001-03FN); and (4) Gun Propellant Burn Area (CAS 09-54-001-09L2).

K. B. Campbell

2002-04-01T23:59:59.000Z

444

The Effects of Fuel Distribution, Velocity Distribution, and Fuel Composition on Static and Dynamic Instabilities and NOx Emissions in Lean Premixed Combustors  

NLE Websites -- All DOE Office Websites (Extended Search)

Distribution, and Fuel Composition on Static and Dynamic Instabilities and NO x Emissions in Lean Premixed Combustors Principal Investigator: Domenic A. Santavicca SCIES Project 03-01-SR109 DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded (7/01/03, 36 month duration) $403,777 Total Contract Value ($403,777 DOE) * Lower Emissions * Improved Static and Dynamic Stability * Fuel Versatility * Improved Design Methodology UTSR Workshop,10-18-05,DAS Gas Turbine Technology Needs * to determine the effect of combustor operating conditions on the static and dynamic stability characteristics of lean premixed combustors operating on natural gas and coal-derived syngas fuels * to develop a methodology for predicting the effect of

445

Transverse liquid fuel jet breakup, burning, and ignition  

SciTech Connect

An analytical/numerical study of the breakup, burning, and ignition of liquid fuels injected transversely into a hot air stream is conducted. The non-reacting liquid jet breakup location is determined by the local sonic point criterion first proposed by Schetz, et al. (1980). Two models, one employing analysis of an elliptical jet cross-section and the other employing a two-dimensional blunt body to represent the transverse jet, have been used for sonic point calculations. An auxiliary criterion based on surface tension stability is used as a separate means of determining the breakup location. For the reacting liquid jet problem, a diffusion flame supported by a one-step chemical reaction within the gaseous boundary layer is solved along the ellipse surface in subsonic crossflow. Typical flame structures and concentration profiles have been calculated for various locations along the jet cross-section as a function of upstream Mach numbers. The integrated reaction rate along the jet cross-section is used to predict ignition position, which is found to be situated near the stagnation point. While a multi-step reaction is needed to represent the ignition process more accurately, the present calculation does yield reasonable predictions concerning ignition along a curved surface.

Li, H.

1990-01-01T23:59:59.000Z

446

Transverse liquid fuel jet breakup, burning, and ignition  

SciTech Connect

An analytical/numerical study of the breakup, burning, and ignition of liquid fuels injected transversely into a hot air stream is conducted. The non-reacting liquid jet breakup location is determined by the local sonic point criterion first proposed by Schetz, et al. (1980). Two models, one employing analysis of an elliptical jet cross-section and the other employing a two-dimensional blunt body to represent the transverse jet, have been used for sonic point calculations. An auxiliary criterion based on surface tension stability is used as a separate means of determining the breakup location. For the reacting liquid jet problem, a diffusion flame supported by a one-step chemical reaction within the gaseous boundary layer is solved along the ellipse surface in subsonic crossflow. Typical flame structures and concentration profiles have been calculated for various locations along the jet cross-section as a function of upstream Mach numbers. The integrated reaction rate along the jet cross-section is used to predict ignition position, which is found to be situated near the stagnation point. While a multi-step reaction is needed to represent the ignition process more accurately, the present calculation does yield reasonable predictions concerning ignition along a curved surface.

Li, H.

1990-12-31T23:59:59.000Z

447

Dispersion model development for open burn/open detonation sources  

SciTech Connect

The disposal of obsolete munitions, propellants, and manufacturing wastes is conducted at Department of Defense (DOD) and Department of Energy (DOE) facilities. The most common disposal method is open burning (OB) and open detonation (OD) of the material, which occurs in an earthen pit or bermed area. OB/OD operations generate air pollutants and require predictions of pollutant concentrations. The pollutants include SO{sub 2}, NO{sub x}, particulates, volatile organic compounds and toxic materials such as metals, semivolatile organics, etc. Dispersion models are used to estimate pollutant concentrations given the source and meteorological conditions. However, there is currently no recommended EPA dispersion model to address OB/OD sources. Due to the constraints of existing models, a model development program was initiated under the DOD/DOE Strategic Environmental Research and Development Program. In Section 2, the authors give an overview of the model design which is divided into simple and research components. Sections 3 and 4 describe the simple component which includes Gaussian puff and analytic plume models.

Weil, J.C.; Templeman, B. [Univ. of Colorado, Boulder, CO (United States); Banta, R.; Weber, R. [NOAA-ETL, Boulder, CO (United States). Environmental Research Labs.; Mitchell, W. [Environmental Protection Agency, Research Triangle Park, NC (United States)

1996-12-31T23:59:59.000Z

448

Interaction of fast particles and Alfven modes in burning plasmas  

SciTech Connect

In this paper we study the interaction of fast particles with Alfvenic instabilities in Tokamak plasmas, with reference to present-day experiments that exploit strong energetic particle heating (namely, JT-60U) and the consistency of proposed ITER burning plasma scenarios. Concerning JT-60U, two different types of bursting modes have been observed by MHD spectrography in auxiliary heated (NNB) discharges. One of these modes has been dubbed fast frequency sweeping (fast FS) mode. It is characterized by a timescale of the order of few milliseconds and frequencies branching upwards and downwards. The other mode, called the abrupt large-amplitude event (ALE), has shorter timescale (order of hundred microseconds) and larger amplitude. On the occurrence of ALEs, a significant reduction of the neutron emission rate in the central plasma region is observed. Such a change has been attributed to a redistribution of the energetic ions, with a marked reduction of their on-axis density. We present an interpretation of these experimental observations, based on the results of nonlinear particle simulations performed by the Hybrid MHD-Gyrokinetic Code HMGC.Concerning ITER, monotonic-q (scenario 2) and reversed-shear (scenario 4) equilibria are considered. Also an ITER hybrid scenario is examined and quantitatively compared with the previous ones. The transition from the low-amplitude Alfvenic instability saturation to the secondary excitation of a stronger mode is addressed, and its effect on the energetic particle transport analyzed.

Vlad, G.; Briguglio, S.; Fogaccia, G.; Zonca, F. [Associazione EURATOM-ENEA, CR ENEA-Frascati, Via E. Fermi 45, 00044 Frascati (Rome) (Italy)

2006-11-30T23:59:59.000Z

449

The EBR-II X501 Minor Actinide Burning Experiment  

SciTech Connect

The X501 experiment was conducted in EBR-II as part of the IFR (Integral Fast Reactor) program to demonstrate minor actinide burning through the use of a homogeneous recycle scheme. The X501 subassembly contained two metallic fuel elements loaded with relatively small quantities of americium and neptunium. Interest in the behavior of minor actinides (MA) during fuel irradiation has prompted further examination of existing X501 data, and generation of new data where needed in support of the U.S. waste transmutation effort. The X501 experiment is one of the few minor actinide-bearing fuel irradiation tests conducted worldwide and knowledge can be gained by understanding the changes in fuel behavior due to addition of MA’s. Of primary interest are the affect of the MA’s on fuel-cladding-chemical-interaction, and the redistribution behavior of americium. The quantity of helium gas release from the fuel and any effects of helium on fuel performance are also of interest. It must be stressed that information presented at this time is based on the limited PIE conducted in 1995-1996, and currently represents a set of observations rather than a complete understanding of fuel behavior. This paper provides a summary of the X501 fabrication, characterization, irradiation, and post irradiation examination.

M. K. Meyer; S. L. Hayes; W. J. Carmack; H. Tsai

2009-07-01T23:59:59.000Z

450

The EBR-II X501 Minor Actinide Burning Experiment  

SciTech Connect

The X501 experiment was conducted in EBR-II as part of the IFR (Integral Fast Reactor) program to demonstrate minor actinide burning through the use of a homogeneous recycle scheme. The X501 subassembly contained two metallic fuel elements loaded with relatively small quantities of americium and neptunium. Interest in the behavior of minor actinides (MA) during fuel irradiation has prompted further examination of existing X501 data, and generation of new data where needed in support of the U.S. waste transmutation effort. The X501 experiment is one of the few minor actinide-bearing fuel irradiation tests conducted worldwide and knowledge can be gained by understanding the changes in fuel behavior due to addition of MA’s. Of primary interest are the affect of the MA’s on fuel-cladding-chemical-interaction, and the redistribution behavior of americium. The quantity of helium gas release from the fuel and any effects of helium on fuel performance are also of interest. It must be stressed that information presented at this time is based on the limited PIE conducted in 1995-1996, and currently represents a set of observations rather than a complete understanding of fuel behavior.

Jon Carmack; S. L. Hayes; M. K. Meyer; H. Tsai

2008-06-01T23:59:59.000Z

451

Vertical feed stick wood fuel burning furnace system  

DOE Patents (OSTI)

A new and improved stove or furnace for efficient combustion of wood fuel including a vertical feed combustion chamber for receiving and supporting wood fuel in a vertical attitude or stack, a major upper portion of the combustion chamber column comprising a water jacket for coupling to a source of water or heat transfer fluid and for convection circulation of the fluid for confining the locus of wood fuel combustion to the bottom of the vertical gravity feed combustion chamber. A flue gas propagation delay channel extending from the laterally directed draft outlet affords delayed travel time in a high temperature environment to assure substantially complete combustion of the gaseous products of wood burning with forced air as an actively induced draft draws the fuel gas and air mixture laterally through the combustion and high temperature zone. Active sources of forced air and induced draft are included, multiple use and circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

Hill, Richard C. (Orono, ME)

1984-01-01T23:59:59.000Z

452

Vertical feed stick wood fuel burning furnace system  

DOE Patents (OSTI)

A stove or furnace for efficient combustion of wood fuel includes a vertical feed combustion chamber (15) for receiving and supporting wood fuel in a vertical attitude or stack. A major upper portion of the combustion chamber column comprises a water jacket (14) for coupling to a source of water or heat transfer fluid for convection circulation of the fluid. The locus (31) of wood fuel combustion is thereby confined to the refractory base of the combustion chamber. A flue gas propagation delay channel (34) extending laterally from the base of the chamber affords delayed travel time in a high temperature refractory environment sufficient to assure substantially complete combustion of the gaseous products of wood burning with forced air prior to extraction of heat in heat exchanger (16). Induced draft draws the fuel gas and air mixture laterally through the combustion chamber and refractory high temperature zone to the heat exchanger and flue. Also included are active sources of forced air and induced draft, multiple circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

Hill, Richard C. (Orono, ME)

1982-01-01T23:59:59.000Z

453

Effects of Resistance Trainging and -hydroxy--methylbutyrate (HMB) on Muscle Fiber CSA and Lean Body Mass in Aged Rats: A DTI and DEXA Study  

E-Print Network (OSTI)

Body Mass in Aged Rats: A DTI and DEXA Study I. S. Masad1,2 , Y-M. Park3 , S-R. Lee3 , J. M. Wilson3 strength and lean body mass (LBM) [7, 8], were investigated in a pre-clinical model of aged rats during resistance training (RT). Methods: Experimental setup: Sixteen 19-month-old Sprague-Dawley female rats were

McQuade, D. Tyler

454

Emissions of Polychlorinated Dibenzo-p-dioxins and Polychlorinated Dibenzofurans from the Open Burning of Household Waste in Barrels  

Science Journals Connector (OSTI)

This study measured the emissions of several pollutants, including polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/PCDFs), from burning mixtures designed to simulate waste generated by a “recycling” and a “nonrecycling” family in a 208-L (55-gal) burn barrel at the EPA's Open Burning Test Facility. ... Four test burns were made in which the amount of waste placed in the barrel varied from 6.4 to 13.6 kg and the amount actually burned varied from 46.6% to 68.1%. ... This study included a survey of 187 residents in rural counties of Illinois to determine the quantity and type of wastes burned, the management of the ash, and the motivation for burning. ...

Paul M. Lemieux; Christopher C. Lutes; Judith A. Abbott; Kenneth M. Aldous

2000-01-04T23:59:59.000Z

455

A University Consortium on Efficient and Clean High-Pressure...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines A University Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines 2010 DOE Vehicle Technologies and...

456

>Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic  

NLE Websites -- All DOE Office Websites (Extended Search)

Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Cement Production, and Gas Flaring for 1995 on a One Degree Grid Cell Basis (NDP-058a) Prepared by Antoinette L. Brenkert Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-6290 Date Published: February 1998 (Revised for the Web: 2003) CONTENTS Abstract Documentation file for Data Base NDP-058a (2-1998) Data Base NDP-058a (2-1998) Abstract Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Cement Production, and Gas Flaring for 1995 on a One Degree Grid Cell Basis. (March 1998) Antoinette L. Brenkert DOI: 10.3334/CDIAC/ffe.ndp058.2003 This data package presents the gridded (one degree latitude by one degree longitude) summed emissions from fossil-fuel burning, hydraulic cement

457

Water quality as affected by season and prescribed burning, Post Oak Savannah, Texas  

E-Print Network (OSTI)

Variation in nutrient and sediment loss via runoff is responsive to precipitation patterns, site characteristics, and disturbance. Fire is necessary for natural maintenance of most grasslands and savannahs. Prescribed burning is an effective...

Landry, Mark S

2012-06-07T23:59:59.000Z

458

Modeling the impacts of biomass burning on air quality in and around Mexico City  

E-Print Network (OSTI)

The local and regional impacts of open fires and trash burning on ground-level ozone (O[subscript 3]) and fine carbonaceous aerosols in the Mexico City Metropolitan Area (MCMA) and surrounding region during two high fire ...

Lei, W.

459

Investigation of the optical and cloud forming properties of pollution, biomass burning, and mineral dust aerosols  

E-Print Network (OSTI)

properties of a biomass burning aerosol generated from fires on the Yucatan Peninsula. Measured aerosol size distributions and size-resolved hygroscopicity and volatility were used to infer critical supersaturation distributions of the distinct particle types...

Lee, Yong Seob

2006-08-16T23:59:59.000Z

460

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

E-Print Network (OSTI)

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 ...

Jeong, Gill-Ran

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Practical delay modeling of externally recirculated burned gas fraction for Spark-Ignited Engines  

E-Print Network (OSTI)

. INTRODUCTION AND COMPARISON WITH DIESEL EXHAUST GAS RECIRCULATION To prevent the malicious knock phenomenon. Scheme of the intake burned gas fraction dynamics. In the seemingly similar context of automotive Diesel

462

Using Coupled Mesoscale Experiments and Simulations to Investigate High Burn-Up Oxide Fuel Thermal Conductivity  

Science Journals Connector (OSTI)

Nuclear energy is a mature technology with a small carbon footprint. However, work is needed to make current reactor technology more accident tolerant and to allow reactor fuel to be burned in a reactor for longe...

Melissa C. Teague; Bradley S. Fromm; Michael R. Tonks; David P. Field

2014-10-01T23:59:59.000Z

463

Cost–Performance Analysis and Optimization of Fuel-Burning Thermoelectric Power Generators  

Science Journals Connector (OSTI)

Energy cost analysis and optimization of thermoelectric (TE) power generators burning fossil fuel show a lower initial cost ... The produced heat generates electric power. Unlike waste heat recovery systems, the ...

Kazuaki Yazawa; Ali Shakouri

2013-07-01T23:59:59.000Z

464

Methods of reducing emissions of nitrogen oxides at thermal power plants burning solid domestic waste  

Science Journals Connector (OSTI)

Essentially all the major methods of reducing the emissions of nitrogen oxides from flue gases employed in power generation have been tested on plants in Moscow which burn solid domestic waste for production of h...

A. N. Tugov; V. F. Moskvichev

2009-01-01T23:59:59.000Z

465

Combustion aerosols formed during burning of radioactively contaminated materials: Experimental results  

SciTech Connect

Safety assessments and environmental impact statements for nuclear fuel cycle facilities require an estimate of potential airborne releases. Radioactive aerosols generated by fires were investigated in experiments in which combustible solids and liquids were contaminated with radioactive materials and burned. Uranium in powder and liquid form was used to contaminate five fuel types: polychloroprene, polystyrene, polymethylmethacrylate, cellulose, and a mixture of 30% tributylphosphate (TBP) in kerosene. Heat flux, oxygen concentration, air flow, contaminant concentration, and type of ignition were varied in the experiments. The highest release (7.1 wt %) came from burning TBP/kerosene over contaminated nitric acid. Burning cellulose contaminated with uranyl nitrate hexahydrate liquid gave the lowest release (0.01 wt %). Rate of release and particle size distribution of airborne radioactive particles were highly dependent on the type of fuel burned.

Halverson, M.A.; Ballinger, M.Y.; Dennis, G.W.

1987-03-01T23:59:59.000Z

466

Characterization of tree macroremains production in a recently burned conifer forest in northern Québec, Canada  

Science Journals Connector (OSTI)

The production of plant macroremains was studied in a conifer forest twomonths after it burned in 1996 in...Piceamariana) and jack pine (Pinusbanksiana) were determined by sampling around individual trees.Both sp...

Yves Bégin; Dominique Marguerie

2002-04-01T23:59:59.000Z

467

Proton emission imaging of the nuclear burn in inertial confinement fusion experiments  

E-Print Network (OSTI)

A proton core imaging system has been developed and extensively used for measuring the nuclear burn regions of inertial confinement fusion implosions. These imaging cameras, mounted to the 60-beam OMEGA laser facility, use ...

DeCiantis, Joseph Loreto

2005-01-01T23:59:59.000Z

468

Lateral Current Density Distribution and Spatial Hole Burning in Quantum Cascade Lasers  

Science Journals Connector (OSTI)

We have investigated non-uniformity of the lateral current density and lateral hole burning in Quantum Cascaded lasers, e.g., the current density in the mode center is 1.8 times that...

Huang, Xue; Dikmelik, Yamac; Gmachl, Claire F

469

Linking Burn Severity to Soil Infiltartion and Runoff in a Montane Watershed: Boulder, Colorado  

E-Print Network (OSTI)

Forest fires have an enormous impact on biotic and abiotic variables that control runoff and soil properties in watersheds. Because wildfires do not have a uniform effect on the burned area, significant variability occurs between areas of different...

Ahlstrom, Anna 1988-

2012-11-28T23:59:59.000Z

470

Assessment of an Industrial Wet Oxidation System for Burning Waste and Low-Grade Fuels  

E-Print Network (OSTI)

"Stone & Webster Engineering Corporation, under Department of Energy sponsorship, is developing a wet oxidation system to generate steam for industrial processes by burning industrial waste materials and low-grade fuels. The program involves...

Bettinger, J.; Koppel, P.; Margulies, A.

471

Nuclear-quadrupole optical hole burning in the stoichiometric material EuP5O14  

Science Journals Connector (OSTI)

Hole burning, which is attributed to optical pumping of nuclear-quadrupole levels, has been observed in the stoichiometric rare-earth compound, EuP5O14. The long...

Macfarlane, R M; Genack, A Z; Weitz, D A; Shelby, R M

1980-01-01T23:59:59.000Z

472

Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods  

E-Print Network (OSTI)

This thesis examines the effects of nanoparticle, metal-oxide additives on the burning rate of composite solid propellants. Recent advancements in chemical synthesis techniques have allowed for the production of improved solid rocket propellant nano...

Allen, Tyler Winston

2013-04-29T23:59:59.000Z

473

Theoretical study of the recording density limit of photochemical hole-burning memory  

Science Journals Connector (OSTI)

To clarify the potential of photochemical hole-burning memory systems, we study the theoretical recording-density limit of such systems. Shot noise and material noise are considered...

Murase, Norio; Horie, Kazuyuki; Terao, Motoyasu; Ojima, Masahiro

1992-01-01T23:59:59.000Z

474

Ultra-high energy cosmic rays, spiral galaxies and magnetars  

Science Journals Connector (OSTI)

......locations of the ultra-high energy Auger events with a well defined...all the 27 UHECR events with energies larger than 57 EeV detected...2004, 2008), operating in Argentina since 2004, is located at...exposure is independent of the energy of the detected events and......

G. Ghisellini; G. Ghirlanda; F. Tavecchio; F. Fraternali; G. Pareschi

2008-10-01T23:59:59.000Z

475

Design Considerations for Ultra-Low Energy Wireless Microsensor Nodes  

E-Print Network (OSTI)

. The most familiar sources of ambient energy include solar power, thermal gradients, radio-frequency (RF to retain local energy storage. Coupling energy- harvesting techniques with some form of energy storage canDesign Considerations for Ultra-Low Energy Wireless Microsensor Nodes Benton H. Calhoun, Student

Chandrakasan, Anantha

476

Ultra-Fast Photodiodes for Terahertz Generation E. Rouvalis1  

E-Print Network (OSTI)

Ultra-Fast Photodiodes for Terahertz Generation E. Rouvalis1 , C. C. Renaud1 and A. J. Seeds1 1 Photodiode is realised as a broadband and high-efficiency photomixer while the frequency response advantage-power photomixers is essential. 2. Travelling-Wave Uni-Travelling Carrier Photodiode (TW-UTC-PD). Bandwidth

Haddadi, Hamed

477

BBN Technical Memorandum No. TM-2023 Ultra Low Latency MANETs  

E-Print Network (OSTI)

in turn point to short ranges. Finally, many MANETs need to be energy conserving which again implies Moulton Street Cambridge, MA 02138 Approved for Public Release. Distribution Unlimited #12;Ultra Low communication ranges foretell MANETs with very large diameters. Indeed, an architecture where dense low

Ramanathan, Ram

478

Carbon RRLs Carbon RRLs towards Ultra-compact HII Regions  

E-Print Network (OSTI)

Carbon RRLs Carbon RRLs towards Ultra-compact HII Regions Dana S. Balser D. Anish Roshi (Raman (Agnes Scott College) #12;Carbon RRLs Carbon Radio Recombination Lines (RRLs) NGC 2024 (Orion B) IC 1795 (W3) Palmer et al. (1967) #12;Carbon RRLs Photodissociation Regions (PDRs) Hollenbach & Tielens (1997

Balser, Dana S.

479

Population difference thermometry for ultra-low temperatures  

SciTech Connect

The authors report measurements of the asymmetry of the intensities of the quadrupolar fine structure of NMR lines in ferromagnetic MnSb down to 30 mK. The asymmetry ratios provide a means of measuring the temperature, and is an example of the use of population difference thermometry as a primary thermometer for ultra-low temperatures. 5 refs., 2 figs.

Andersen, P.M.; Sullivan, N.S.; Andraka, B.; Xia, J.S.; Adams, E.D. [Univ. of Florida, Gainesville (United States)

1992-11-01T23:59:59.000Z

480

An Ultra-Wearable, Wireless, Low Power ECG Monitoring System  

E-Print Network (OSTI)

An Ultra-Wearable, Wireless, Low Power ECG Monitoring System Chulsung Park and Pai H. Chou., Suite 107 San Diego, CA 92121, USA Abstract-- Wearable electrocardiograph (ECG) monitoring systems today performance to gold standard ECG electrodes, has been developed. This paper presents a description

Shinozuka, Masanobu

Note: This page contains sample records for the topic "ultra lean burn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Ultraslow Wave Nuclear Burning of Uranium-Plutonium Fissile Medium on Epithermal Neutrons  

E-Print Network (OSTI)

For a fissile medium, originally consisting of uranium-238, the investigation of fulfillment of the wave burning criterion in a wide range of neutron energies is conducted for the first time, and a possibility of wave nuclear burning not only in the region of fast neutrons, but also for cold, epithermal and resonance ones is discovered for the first time. For the first time the results of the investigation of the Feoktistov criterion fulfillment for a fissile medium, originally consisting of uranium-238 dioxide with enrichments 4.38%, 2.00%, 1.00%, 0.71% and 0.50% with respect to uranium-235, in the region of neutron energies 0.015-10.0eV are presented. These results indicate a possibility of ultraslow wave neutron-nuclear burning mode realization in the uranium-plutonium media, originally (before the wave initiation by external neutron source) having enrichments with respect to uranium-235, corresponding to the subcritical state, in the regions of cold, thermal, epithermal and resonance neutrons. In order to validate the conclusions, based on the slow wave neutron-nuclear burning criterion fulfillment depending on the neutron energy, the numerical modeling of ultraslow wave neutron-nuclear burning of a natural uranium in the epithermal region of neutron energies (0.1-7.0eV) was conducted for the first time. The presented simulated results indicate the realization of the ultraslow wave neutron-nuclear burning of the natural uranium for the epithermal neutrons.

V. D. Rusov; V. A. Tarasov; M. V. Eingorn; S. A. Chernezhenko; A. A. Kakaev; V. M. Vashchenko; M. E. Beglaryan

2014-09-25T23:59:59.000Z

482

2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural 2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program 2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program 2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas Annual report on ultra-deepwater natural gas, etc, required by Energy Policy Act of 2005, Subtitle J, Section 999 2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program More Documents & Publications 2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program 2007 Annual Plan

483

Fast Ignition: Nuclear Fusion with UltraFast Ignition: Nuclear Fusion with Ultra--intenseintense LASERsLASERs  

E-Print Network (OSTI)

pellet composed of deuterium and tritium. In the fast ignition regime a secondy p g g p p g g laser, nearly limitless, fuel source. Fusion via Fast Ignition MethodUltra-Intense Laser Research atFusion via Direct Drive Method U Strathclyde IgnitionCompression IgnitionCompression · Very intense lasers (shown

Strathclyde, University of

484

Ion kinetic effects on the ignition and burn in ICF Ion kinetic effects on the ignition and burn of ICF targets  

E-Print Network (OSTI)

and burn of the thermonuclear fuel in inertial confinement fusion pellets at the ion kinetic level to treat fusion products (suprathermal -particles) in a self-consistent manner with the thermal bulk enhancement of fusion products leads to a significant reduction of the fusion yield. I. MOTIVATION AND CONTEXT

485

Carbon, water, and heat flux responses to experimental burning and drought  

NLE Websites -- All DOE Office Websites (Extended Search)

Carbon, water, and heat flux responses to experimental burning and drought Carbon, water, and heat flux responses to experimental burning and drought in a tallgrass prairie Title Carbon, water, and heat flux responses to experimental burning and drought in a tallgrass prairie Publication Type Journal Article Year of Publication 2012 Authors Fischer, Marc L., Margaret S. Torn, David P. Billesbach, Geoffrey Doyle, Brian Northup, and Sebastien C. Biraud Journal Agricultural and Forest Meteorology Volume 166-167 Pagination 169-174 Keywords Carbon exchange, eddy covariance, Fire, Grassland, Prairie, Water stress Abstract Drought and fire are common disturbances to grassland ecosystems. We report two years of eddy covariance ecosystem-atmosphere fluxes and biometric variables measured in nearby burned and unburned pastures in the US Southern Great Plains. Over the course of the experiment, annual precipitation (∼600 mm yr-1) was lower than the long term mean (∼860 mm yr-1). Soil moisture decreased from productive conditions in March 2005 dry, unproductive conditions during the growing season starting in March 2006. Just prior to the burn in early March 2005, burned and unburned pastures contained 520 ± 60 and 360 ± 40 g C m-2 of total above ground biomass (AGB) and litter, respectively. The fire removed approximately 200 g C m-2 of litter and biomass. In the 2005 growing season following the burn, maximum green AGB was 450 ± 60 and 270 ± 40 g C m-2, with corresponding cumulative annual net ecosystem carbon exchange (NEE) of -330 and -150 g C m-2 for the burned and unburned pastures, respectively. In contrast to NEE, cumulative mean sensible heat and water fluxes were approximately equal in both pastures during the growing season, suggesting either an increase in water use efficiency or a decrease in evaporation in the burned relative to the unburned pasture. In the 2006 growing season, dry conditions decreased carbon uptake and latent heat, and increased sensible heat fluxes. Peak AGB was reduced to 210 ± 30 g C m-2 and 140 ± 30 g C m-2 in the burned and unburned pastures, respectively, while NEE was near zero. These results suggest that the lack of precipitation was responsible for most of the interannual variation in carbon exchange for these un-irrigated prairie pastures.

486

Ultra-cold atomic matter and quantum information My group studies various many-body states of ultra cold atoms and  

E-Print Network (OSTI)

Ultra-cold atomic matter and quantum information My group studies various many-body states of ultra cold atoms and investigates possible applications towards quantum computation. Two subjects studies of nematic Mott states and dimerized valence bond states of spin-one atoms. We also have

Plotkin, Steven S.

487

Texas A&M AgriLife Extension Service Procedures 24.01.01.X0.09 Outdoor Burning  

E-Print Network (OSTI)

during cold weather. 2.3 Domestic waste burning at a private residence when collection is not providedTexas A&M AgriLife Extension Service Procedures 24.01.01.X0.09 Outdoor Burning Approved: October 5 Review: August 27, 2014 Texas A&M AgriLife Extension Service Procedure 24.01.01.X0.09 Outdoor Burning

488

Texas A&M AgriLife Research Procedures 24.01.01.A0.09 Outdoor Burning  

E-Print Network (OSTI)

during cold weather. 2.3 Domestic waste burning at a private residence when collection is not providedTexas A&M AgriLife Research Procedures 24.01.01.A0.09 Outdoor Burning Approved: October 5, 2000: August 27, 2014 Texas A&M AgriLife Research Procedure 24.01.01.A0.09 Outdoor Burning Page 1 of 2

489

Ultra-High Efficiency and Low-Emissions Combustion Technology for Manufacturing Industries  

SciTech Connect

The purpose of this research was to develop and test a transformational combustion technology for high temperature furnaces to reduce the energy intensity and carbon footprint of U.S. manufacturing industries such as steel, aluminum, glass, metal casting, and petroleum refining. A new technology based on internal and/or external Flue Gas Recirculation (FGR) along with significant enhancement in flame radiation was developed. It produces "Radiative Flameless Combustion (RFC)" and offers tremendous energy efficiency and pollutant reduction benefits over and above the now popular "flameless combustion." It will reduce the energy intensity (or fuel consumption per unit system output) by more than 50% and double the furnace productivity while significantly reducing pollutants and greenhouse gas emissions (10^3 times reduction in NOx and 10 times reduction in CO & hydrocarbons and 3 times reduction in CO2). Product quality improvements are also expected due to uniform radiation, as well as, reduction in scale/dross formation is expected because of non-oxidative atmosphere. RFC is inexpensive, easy to implement, and it was successfully tested in a laboratory-scale furnace at the University of Michigan during the course of this work. A first-ever theory with gas and particulate radiation was also developed. Numerical programs were also written to design an industrial-scale furnace. Nine papers were published (or are in the process of publication). We believe that this early stage research adequately proves the concept through laboratory experiments, modeling and computational models. All this work is presented in the published papers. Important conclusions of this work are: (1) It was proved through experimental measurements that RFC is not only feasible but a very beneficial technology. (2) Theoretical analysis of RFC was done in (a) spatially uniform strain field and (b) a planar momentum jet where the strain rate is neither prescribed nor uniform. Four important non-dimensional parameters controlling RFC in furnaces were identified. These are: (i) The Boltzmann number; (ii) The Damkohler number, (iii) The dimensionless Arrhenius number, and (iv) The equivalence ratio. Together they define the parameter space where RFC is possible. It was also found that the Damkohler number must be small for RFC to exist and that the Boltzmann number expands the RFC domain. The experimental data obtained during the course of this work agrees well with the predictions made by the theoretical analysis. Interestingly, the equivalence ratio dependence shows that it is easier to establish RFC for rich mixtures than for lean mixtures. This was also experimentally observed. Identifying the parameter space for RFC is necessary for controlling the RFC furnace operation. It is hoped that future work will enable the methodology developed here to be applied to the operation of real furnaces, with consequent improvement in efficiency and pollutant reduction. To reiterate, the new furnace combustion technology developed enables intense radiation from combustion products and has many benefits: (i) Ultra-High Efficiency and Low-Emissions; (ii) Uniform and intense radiation to substantially increase productivity; (iii) Oxygen-free atmosphere to reduce dross/scale formation; (iv) Provides multi-fuel capability; and (v) Enables carbon sequestration if pure oxygen is used for combustion.

Atreya, Arvind

2013-04-15T23:59:59.000Z

490

Laminar burning velocity with oxygen-enriched air of syngas produced from biomass gasification  

Science Journals Connector (OSTI)

Abstract Several studies on the laminar burning velocity of syngas mixtures have been conducted by various researchers. However, in most of these studies, dry air was used as the oxidizer, whereas very few studies have been conducted on syngas combustion in oxygen – enriched air. In this work, a numerical and experimental study on the laminar burning velocity of a mixture of H2, CO and N2 (20:20:60 vol%) was performed using air enriched with oxygen as the oxidizer, varying the oxygen content from 21% up to 35% for different equivalence ratios. Numerical calculations were conducted using three detailed reaction mechanisms and transport properties. Flames were generated using contoured slot-type nozzle burners, and Schlieren images were used to determine the laminar burning velocity with the angle method. The experiments were performed under the conditions of Medellin (1550 m.a.s.l.), 0.838 atm and 298 K. The laminar burning velocity increases with the concentration of the oxygen in the mixture due to the increase of the reaction rate; for a stoichiometric mixture, the laminar burning velocity increases by almost 25% with an increment of 4% of oxygen in the oxidant. However, the flammability limits also increase, allowing stable flames to exist in a wider range of equivalence ratios.

Hernando A. Yepes; Andres A. Amell

2013-01-01T23:59:59.000Z

491

Study of the burning capability of the los alamos ATW system  

Science Journals Connector (OSTI)

The aim of calculations is to evaluate the evolution of the infinite multiplication factor (k inf) during the irradiation of minor actinides High Level Waste (HLW) and Plutonium. The most important results are independently verified with Monte Carlo calculations. The relative importance of the main parameters affecting the k inf was investigated by performing calculations with several minor actinide and plutonium concentrations as well as different 238U decontamination factors for HLW. The merit figure value for minor actinide alone considering a constant neutron flux indicates that the best results are reached for minor actinide concentration equal to PWR spent fuel. The best plutonium burning results are obtained for a concentration (50.23 g/l) equal to the half of PWR spent fuel one. The simulations lead to two different reactor concepts: one for HLW burning and the other for plutonium burning purposes. To burn the HLW the most suitable reactor is an homogeneous one. This kind of reactor can effectively be utilised to burn minor actinide in low concentration (namely the PWR spent fuel). On the other hand an heterogeneous reactor with channels filled by all actinides present in PWR spent fuel with the exclusion of U isotopes with a concentration of 50 g/l can be studied.

P. A. Landeyro; A. Buccafurni; A. Orazi

1995-01-01T23:59:59.000Z

492

Ambient measurements of light-absorption by agricultural waste burning organic aerosols  

Science Journals Connector (OSTI)

Absorption properties (absorption Ångstrom exponent and mass absorption efficiency) of agricultural waste burning organic aerosols (AWB-OA) and their impact on total absorption were investigated in Cairo (Egypt) during the post-harvest rice straw burning autumn season. At 370 nm, AWB-OA were found to account for more than 25% of total absorption on average for the period of study (and for ?50% during intense biomass burning events), pointing out the major role potentially played by such particles on light absorption at short wavelengths. The absorption exponent obtained for AWB-OA (?3.5) is consistent with values previously reported for biomass burning brown carbon. In addition, AWB-OA were found to exhibit high mass absorption efficiencies at the near ultraviolet/mid-visible regions (e.g. 3.2±1.6 m2 g?1 at 370 nm and 0.8±0.4 m2 g?1 at 520 nm). Such findings clearly illustrate the need to take light absorption by organic aerosols into account for a better estimate of the radiative impact of biomass burning aerosols.

Olivier Favez; Stéphane C. Alfaro; Jean Sciare; Hélène Cachier; Magdy M. Abdelwahab

2009-01-01T23:59:59.000Z

493

Effects of surface voids on burning rate measurements of pulverized coal at diffusion-limited conditions  

SciTech Connect

This research explores the effects of voids (pores on the particle surface that are deeper than their surface radius) on burning area at diffusion-limited combustion conditions. Scanning electron microscopy and digital processing of images of quenched particles were used to quantify surface void area, perimeter, and reacting void wall area for voids with diameters larger than 1 {micro}m. After careful analysis, the most accurate determination of particle burning area at diffusion-limited conditions was achieved by measuring particle surface area using the technique of discrete revolution, subtracting surface void area, and adding reacting void wall area. In situ measurements of reacting coal particle temperatures and images were taken for three coals and spherocarb particles at conditions that limit the formation of CO{sub 2} from reacting carbon under various oxygen concentrations and heating rates. The results of these experiments indicate that correcting the measured surface area for void area and reacting void wall area produces calculated burning rates closely matching diffusion-limited burning rates for all conditions and all coals investigated. These results suggest that void area effects should be included for accurate determination of burning area at diffusion-limited conditions.

Bayless, D.J.; Schroeder, A.R.; Peters, J.E.; Buckius, R.O. [Univ. of Illinois, Urbana, IL (United States). Dept. of Mechanical and Industrial Engineering] [Univ. of Illinois, Urbana, IL (United States). Dept. of Mechanical and Industrial Engineering

1997-01-01T23:59:59.000Z

494

Magnetic horizons of ultra-high energy cosmic rays  

E-Print Network (OSTI)

The propagation of ultra-high energy cosmic rays in extragalactic magnetic fields can be diffusive, depending on the strength and properties of the fields. In some cases the propagation time of the particles can be comparable to the age of the universe, causing a suppression in the flux measured on Earth. In this work we use magnetic field distributions from cosmological simulations to assess the existence of a magnetic horizon at energies around 10$^{18}$ eV.

Batista, Rafael Alves

2014-01-01T23:59:59.000Z

495

Double Pair Production by Ultra High Energy Cosmic Ray Photons  

E-Print Network (OSTI)

With use of CompHEP package we've made the detailed estimate of the influence of double e+e- pair production by photons (DPP) on the propagation of ultra high energy electromagnetic cascade. We show that in the models in which cosmic ray photons energy reaches few thousand EeV refined DPP analysis may lead to substantial difference in predicted photon spectrum compared to previous rough estimates.

S. V. Demidov; O. E. Kalashev

2008-12-22T23:59:59.000Z

496

Ultra-Thin Metal Films for Enhanced Solar Absorption  

E-Print Network (OSTI)

This paper presents modelled results for optical absorption in ultra-thin films of nickel, gold and silver over the solar spectrum. It is found in the case of nickel there is an optimum thickness for maximum solar absorption around 10-13nm. This effect is not observed for gold or silver. It is postulated that this is an interference effect occurring due the particular real and imaginary refractive profile of nickel across the solar spectrum.

Ahmad, N; Teng, M; Cryan, M J

2012-01-01T23:59:59.000Z

497

Ultra-high energy cosmic rays from Quark Novae  

E-Print Network (OSTI)

We explore acceleration of ions in the Quark Nova (QN) scenario, where a neutron star experiences an explosive phase transition into a quark star (born in the propeller regime). In this picture, two cosmic ray components are isolated: one related to the randomized pulsar wind and the other to the propelled wind, both boosted by the ultra-relativistic Quark Nova shock. The latter component acquires energies $10^{15} {\\rm eV}wind, achieves ultra-high energies $E> 10^{18.6}$ eV. The composition is dominated by ions present in the pulsar wind in the energy range above $10^{18.6}$ eV, while at energies below $10^{18}$ eV the propelled ejecta, consisting of the fall-back neutron star crust material from the explosion, is the dominant one. Added to these two components, the propeller injects relativistic particles with Lorentz factors $\\Gamma_{\\rm prop.} \\sim 1-1000$, later to be accelerated by galactic supernova shocks. The QN model appears to be able to account for the extragalactic cosmic rays above the ankle and to contribute a few percent of the galactic cosmic rays below the ankle. We predict few hundred ultra-high energy cosmic ray events above $10^{19}$ eV for the Pierre Auger detector per distant QN, while some thousands are predicted for the proposed EUSO and OWL detectors.

R. Ouyed; P. Keränen; J. Maalampi

2003-01-29T23:59:59.000Z

498

Supplementary information for manuscript Burning of Olive Tree Branches: A Major Organic Aerosol Emission Source in the  

E-Print Network (OSTI)

consisted of a Shimadzu QP2010 Ultra equipped with an AOC 20i autoinjector. 1 l of the sample was injected

Meskhidze, Nicholas

499

2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 Annual Plan for the Ultra-Deepwater and Unconventional Natural 7 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program 2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program Annual report on ultra-deepwater, etc. natural gas research program required by Energy Policy Act of 2005, Subtitle J, Section 999 2007 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program More Documents & Publications 2007 Annual Plan Recommendations: Draft 2008 Section 999 Annual Plan 2008 Annual Plan for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Research and Development Program

500

A Test of the Aversive Transition Account: Extended Pausing Following Signaled Rich-Lean Transitions on Multiple Fixed-Ratio Schedules in Fischer 344 and Lewis Rats  

E-Print Network (OSTI)

, Fischer 344 rats paused longer than Lewis rats at signaled rich-lean transitions at most ratio values. Control procedures suggest this difference is not due to motoric differences between rat strains. 4 A fixed-ratio (FR) schedule delivers a... reinforcer after n responses, where n is the size of the ratio (Ferster & Skinner, 1957). Responding on FR schedules is characterized by a ?break-and-run? pattern composed of a period of nonresponding (a break, or pause) after each reinforcer followed by a...

Brewer, Adam Thornton

2009-12-16T23:59:59.000Z