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Note: This page contains sample records for the topic "ice internal combustion" 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.


1

Hydrogen Internal Combustion Engine (ICE) Vehicle Testing Activities  

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

Internal Combustion Internal Combustion Engine (ICE) Vehicle Testing Activities James Francfort Idaho National Laboratory 2 Paper #2006-01-0433 Presentation Outline Background and goal APS Alternative Fuel (Hydrogen) Pilot Plant - design and operations Fuel dispensing and prototype dispenser Hydrogen (H2) and HCNG (compressed natural gas) internal combustion engine (ICE) vehicle testing WWW Information 3 Paper #2006-01-0433 Background Advanced Vehicle Testing Activity (AVTA) is part of DOE's FreedomCAR and Vehicle Technologies Program These activities are conducted by the Idaho National Laboratory (INL) and the AVTA testing partner Electric Transportation Applications (ETA) 4 Paper #2006-01-0433 AVTA Goal Provide benchmark data for technology modeling, research and development programs, and help fleet managers and

2

Comparative evaluation of acoustical noise levels of Soleq Evcort EV and ICE (internal combustion engine) counterpart  

DOE Green Energy (OSTI)

The Idaho National Engineering Laboratory (INEL) evaluates Ev propulsion systems and components for the US Department of Energy (DOE) Electric and Hybrid Vehicle (EHV) Program. This paper describes an INEL study which compares the exterior and interior acoustic noise levels of an electric vehicle to its internal combustion engine (ICE) counterpart base vehicle, under various operating conditions. The electric vehicle was a converted 1988 Ford Escort station wagon, retrofitted with a DC electric powertrain developed by Soleq Corporation. A comparably-equipped gasoline-fueled ICE-powered Ford Escort station wagon provided the baseline acoustic noise levels with which to compare the electric vehicle. Measurements of the interior and exterior noise levels were obtained using a Bruel and Kjaer (B K) Type 2231 Modular Precision Sound Level Meter. The tests were conducted in accordance with applicable Society of Automotive Engineer's (SAE) standard practices at Chrysler's Arizona Proving Grounds in Wittmann, Arizona. The results indicate that radiated interior and exterior acoustic noise levels of the electric vehicle were noticeably quieter under acceleration and idly conditions. However, under constant speed operation the electric and the ICE exhibited essentially equivalent interior and exterior noise levels. 8 refs., 2 tabs.

MacDowall, R.D.

1990-01-01T23:59:59.000Z

3

Free Energy and Internal Combustion Engine Cycles  

E-Print Network (OSTI)

The performance of one type (Carnot) of Internal Combustion Engine (ICE) cycle is analyzed within the framework of thermodynamic free energies. ICE performance is different from that of an External Combustion Engine (ECE) which is dictated by Carnot's rule.

Harris, William D

2012-01-01T23:59:59.000Z

4

Internal combustion engine  

SciTech Connect

An improvement to an internal combustion engine is disclosed that has a fuel system for feeding a fuel-air mixture to the combustion chambers and an electrical generation system, such as an alternator. An electrolytic cell is attached adjacent to the engine to generate hydrogen and oxygen upon the application of a voltage between the cathode and anode of the electrolytic cell. The gas feed connects the electrolytic cell to the engine fuel system for feeding the hydrogen and oxygen to the engine combustion chambers. Improvements include placing the electrolytic cell under a predetermined pressure to prevent the electrolyte from boiling off, a cooling system for the electrolytic cell and safety features.

Valdespino, J.M.

1981-06-09T23:59:59.000Z

5

Low emission internal combustion engine  

DOE Patents (OSTI)

A low emission, internal combustion compression ignition engine having a cylinder, a piston movable in the cylinder and a pre-combustion chamber communicating with the cylinder near the top thereof and in which low emissions of NO.sub.x are achieved by constructing the pre-combustion chamber to have a volume of between 70% and 85% of the combined pre-chamber and main combustion chamber volume when the piston is at top dead center and by variably controlling the initiation of fuel injection into the pre-combustion chamber.

Karaba, Albert M. (Muskegon, MI)

1979-01-01T23:59:59.000Z

6

Advanced Vehicle Testing Activity: Other Internal Combustion...  

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

Other Internal Combustion Engine Vehicles to someone by E-mail Share Advanced Vehicle Testing Activity: Other Internal Combustion Engine Vehicles on Facebook Tweet about Advanced...

7

Internal Combustion Engine Advances for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

Internal combustion engines (ICEs) can play a potentially significant role as a distributed generation resource. This report provides intelligence on vendor programs and on advances in ICE technology that could lead to commercial offerings within a 2-5 year time frame.

1997-09-30T23:59:59.000Z

8

Contrôle de combustion en transitoires des moteurs à combustion interne.  

E-Print Network (OSTI)

??Cette thèse traite le problème du contrôle de combustion des moteurs automobiles à combustion interne. On propose une méthode complétant les stratégies de contrôle existantes… (more)

Hillion, Mathieu

2009-01-01T23:59:59.000Z

9

Internal combustion engine  

DOE Patents (OSTI)

An improved engine is provided that more efficiently consumes difficult fuels such as coal slurries or powdered coal. The engine includes a precombustion chamber having a portion thereof formed by an ignition plug. The precombustion chamber is arranged so that when the piston is proximate the head, the precombustion chamber is sealed from the main cylinder or the main combustion chamber and when the piston is remote from the head, the precombustion chamber and main combustion chamber are in communication. The time for burning of fuel in the precombustion chamber can be regulated by the distance required to move the piston from the top dead center position to the position wherein the precombustion chamber and main combustion chamber are in communication.

Baker, Quentin A. (P.O. Box 6477, San Antonio, TX 78209); Mecredy, Henry E. (1630-C W. 6th, Austin, TX 78703); O' Neal, Glenn B. (6503 Wagner Way, San Antonio, TX 78256)

1991-01-01T23:59:59.000Z

10

Hydrogen-fueled internal combustion engines.  

DOE Green Energy (OSTI)

The threat posed by climate change and the striving for security of energy supply are issues high on the political agenda these days. Governments are putting strategic plans in motion to decrease primary energy use, take carbon out of fuels and facilitate modal shifts. Taking a prominent place in these strategic plans is hydrogen as a future energy carrier. A number of manufacturers are now leasing demonstration vehicles to consumers using hydrogen-fueled internal combustion engines (H{sub 2}ICEs) as well as fuel cell vehicles. Developing countries in particular are pushing for H{sub 2}ICEs (powering two- and three-wheelers as well as passenger cars and buses) to decrease local pollution at an affordable cost. This article offers a comprehensive overview of H{sub 2}ICEs. Topics that are discussed include fundamentals of the combustion of hydrogen, details on the different mixture formation strategies and their emissions characteristics, measures to convert existing vehicles, dedicated hydrogen engine features, a state of the art on increasing power output and efficiency while controlling emissions and modeling.

Verhelst, S.; Wallner, T.; Energy Systems; Ghent Univ.

2009-12-01T23:59:59.000Z

11

Research on the Performance and Emission of a Port Fuel Injection Hydrogen Internal Combustion Engine  

Science Conference Proceedings (OSTI)

A 2.0L nature aspirate gasoline engine was modified to port fuel injection (PFI) hydrogen internal combustion engine (HICE) and a series dynamometer tests were carried out. The in-cylinder combustion process was analyzed, the performance, thermal efficiency ... Keywords: hydrogen ICE, performance, emission, combustion characteristics

Dawei Sun; Fushui Liu

2011-02-01T23:59:59.000Z

12

Research on the Performance and Emission of a Port Fuel Injection Hydrogen Internal Combustion Engine  

Science Conference Proceedings (OSTI)

A 2.0L nature aspirate gasoline engine was modified to port fuel injection (PFI) hydrogen internal combustion engine (HICE) and a series dynamometer tests were carried out. The in-cylinder combustion process was analyzed, the performance, thermal efficiency ... Keywords: hydrogen ICE, performance, emission, combustion characteristics

Dawei Sun; Fushui Liu

2010-12-01T23:59:59.000Z

13

Advanced Vehicle Testing Activity- Other Internal Combustion...  

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

Other Internal Combustion Engine Vehicles What's New 2012 Honda Civic CNG Baseline Performance Testing (PDF 292KB) 2013 Volkswagen Jetta TDI Baseline Performance Testing (PDF...

14

Advanced Vehicle Testing Activity: Hydrogen Internal Combustion...  

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

to someone by E-mail Share Advanced Vehicle Testing Activity: Hydrogen Internal Combustion Engine Vehicle Basics on Facebook Tweet about Advanced Vehicle Testing Activity:...

15

Advanced Vehicle Testing Activity: Other Internal Combustion...  

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

Other Internal Combustion Engine Vehicles The Advanced Vehicle Testing Activity (AVTA) is tasked by the U.S. Department of Energy's (DOE) Vehicle Technology Office (VTO) to conduct...

16

Insitu Oxygen Conduction Into Internal Combustion Chamber  

Insitu Oxygen Conduction Into Internal Combustion Chamber Note: The technology described above is an early stage opportunity. Licensing rights to this ...

17

Advanced Vehicle Testing Activity: Hydrogen Internal Combustion...  

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

to someone by E-mail Share Advanced Vehicle Testing Activity: Hydrogen Internal Combustion Engine Vehicle Specifications and Test Procedures on Facebook Tweet about Advanced...

18

Estimating the impact on fuel tax revenues from a changing light vehicle fleet with increased advanced internal combustion engine vehicles and electric vehicles.  

E-Print Network (OSTI)

??Advanced fuel economies in both traditional internal combustion engine vehicles (ICEs) and electric vehicles (EVs) have a strong influence on transportation revenue by reducing fuel… (more)

Hall, Andrea Lynn

2013-01-01T23:59:59.000Z

19

Internal combustion engine and method for control  

SciTech Connect

In one exemplary embodiment of the invention an internal combustion engine includes a piston disposed in a cylinder, a valve configured to control flow of air into the cylinder and an actuator coupled to the valve to control a position of the valve. The internal combustion engine also includes a controller coupled to the actuator, wherein the controller is configured to close the valve when an uncontrolled condition for the internal engine is determined.

Brennan, Daniel G

2013-05-21T23:59:59.000Z

20

Carburetor for internal combustion engines  

DOE Patents (OSTI)

A carburetor for internal combustion engines having a housing including a generally discoidal wall and a hub extending axially from the central portion thereof, an air valve having a relatively flat radially extending surface directed toward and concentric with said discoidal wall and with a central conoidal portion having its apex directed toward the interior of said hub portion. The housing wall and the radially extending surface of the valve define an air passage converging radially inwardly to form an annular valving construction and thence diverge into the interior of said hub. The hub includes an annular fuel passage terminating at its upper end in a circumferential series of micro-passages for directing liquid fuel uniformly distributed into said air passage substantially at said valving constriction at right angles to the direction of air flow. The air valve is adjustable axially toward and away from the discoidal wall of the carburetor housing to regulate the volume of air drawn into the engine with which said carburetor is associated. Fuel is delivered under pressure to the fuel metering valve and from there through said micro-passages and controlled cams simultaneously regulate the axial adjustment of said air valve and the rate of delivery of fuel through said micro-passages according to a predetermined ratio pattern. A third jointly controlled cam simultaneously regulates the ignition timing in accordance with various air and fuel supply settings. The air valve, fuel supply and ignition timing settings are all independent of the existing degree of engine vacuum.

Csonka, John J. (625 Linwood Ave., Buffalo, NY 14209); Csonka, Albert B. (109 Larchmont Rd., Buffalo, NY 14214)

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Internal combustion electric power hybrid power plant  

SciTech Connect

An internal combustion-electric motor hybrid power plant for an automotive vehicle is disclosed. The power plant includes an internal combustion engine and a direct current electric motor generator which are connected to a drive shaft for the vehicle. A clutch mechanism is provided to connect the internal combustion engine, the direct current electric motor generator and the drive shaft for selectively engaging and disengaging the drive shaft with the internal combustion engine and the motor generator. A storage battery is electrically connected to the motor generator to supply current to and receive current therefrom. Thermoelectric semi-conductors are arranged to be heated by the waste heat of the internal combustion engine. These thermoelectric semi-conductors are electrically connected to the battery to supply current thereto. The thermoelectric semi-conductors are mounted in contact with the outer surfaces of the exhaust pipe of the internal combustion engine and also with the outer surfaces of the cylinder walls of the engine.

Cummings, T.A.

1979-04-10T23:59:59.000Z

22

Research and development of hydrogen direct-injection internal combustion engine system  

Science Conference Proceedings (OSTI)

The research and development of hydrogen-internal combustion engine (ICE) system for heavy-duty trucks, with the goal of allowing carbon dioxide (CO2)-free operation in transportation department, has been carried out. The high-pressure hydrogen ... Keywords: NOx emission reduction, NOx storage reduction catalyst, carbon dioxide-free, direct injection, heavy-duty truck, high-pressure hydrogen injector, hydrogen, internal combustion engine

Yoshio Sato; Atsuhiro Kawamura; Tadanori Yanai; Kaname Naganuma; Kimitaka Yamane; Yasuo Takagi

2009-02-01T23:59:59.000Z

23

Two phase exhaust for internal combustion engine  

Science Conference Proceedings (OSTI)

An internal combustion engine having a reciprocating multi cylinder internal combustion engine with multiple valves. At least a pair of exhaust valves are provided and each supply a separate power extraction device. The first exhaust valves connect to a power turbine used to provide additional power to the engine either mechanically or electrically. The flow path from these exhaust valves is smaller in area and volume than a second flow path which is used to deliver products of combustion to a turbocharger turbine. The timing of the exhaust valve events is controlled to produce a higher grade of energy to the power turbine and enhance the ability to extract power from the combustion process.

Vuk, Carl T. (Denver, IA)

2011-11-29T23:59:59.000Z

24

2.61 Internal Combustion Engines, Spring 2004  

E-Print Network (OSTI)

Fundamentals of how the design and operation of internal combustion engines affect their performance, operation, fuel requirements, and environmental impact. Study of fluid flow, thermodynamics, combustion, heat transfer ...

Heywood, John B.

25

Jet plume injection and combustion system for internal combustion engines  

DOE Patents (OSTI)

An improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices from the cavities into the head space of the cylinder to form one or more turbulent jet plumes in the head space of the cylinder prior to ignition of the rich air/fuel mixture in the cavity of the jet plume generator. The portion of the rich air/fuel mixture remaining in the cavity of the generator is then ignited to provide a secondary jet, comprising incomplete combustion products which are injected into the cylinder to initiate combustion in the already formed turbulent jet plume. Formation of the turbulent jet plume in the head space of the cylinder prior to ignition has been found to yield a higher maximum combustion pressure in the cylinder, as well as shortening the time period to attain such a maximum pressure.

Oppenheim, Antoni K. (Kensington, CA); Maxson, James A. (Berkeley, CA); Hensinger, David M. (Albany, CA)

1993-01-01T23:59:59.000Z

26

Jet plume injection and combustion system for internal combustion engines  

DOE Patents (OSTI)

This invention is comprised of an improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices from the cavities into the head space of the cylinder to form one or more turbulent jet plumes in the head space of the cylinder prior to ignition of the rich air/fuel mixture in the cavity of the jet plume generator. The portion of the rich air/fuel mixture remaining in the cavity of the generator is then ignited to provide a secondary jet, comprising incomplete combustion products which are injected into the cylinder to initiate combustion in the already formed turbulent jet plume. Formation of the turbulent jet plume in the head space of the cylinder prior to ignition has been found to yield a higher maximum combustion pressure in the cylinder, as well as shortening the time period to attain such a maximum pressure.

Oppenheim, A.K.; Maxson, J.A.; Hensinger, D.M.

1992-12-31T23:59:59.000Z

27

Jet plume injection and combustion system for internal combustion engines  

DOE Patents (OSTI)

An improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices from the cavities into the head space of the cylinder to form one or more turbulent jet plumes in the head space of the cylinder prior to ignition of the rich air/fuel mixture in the cavity of the jet plume generator. The portion of the rich air/fuel mixture remaining in the cavity of the generator is then ignited to provide a secondary jet, comprising incomplete combustion products which are injected into the cylinder to initiate combustion in the already formed turbulent jet plume. Formation of the turbulent jet plume in the head space of the cylinder prior to ignition has been found to yield a higher maximum combustion pressure in the cylinder, as well as shortening the time period to attain such a maximum pressure. 24 figures.

Oppenheim, A.K.; Maxson, J.A.; Hensinger, D.M.

1993-12-21T23:59:59.000Z

28

Starting apparatus for internal combustion engines  

DOE Patents (OSTI)

This report is a patent description for a system to start an internal combustion engine. Remote starting and starting by hearing impaired persons are addressed. The system monitors the amount of current being drawn by the starter motor to determine when the engine is started. When the engine is started the system automatically deactivates the starter motor. Five figures are included.

Dyches, G.M.; Dudar, A.M.

1995-01-01T23:59:59.000Z

29

Twenty-Seventh Symposium (International) on Combustion/The Combustion Institute, 1998/pp. 28152820 FINGERING INSTABILITY IN SOLID FUEL COMBUSTION  

E-Print Network (OSTI)

2815 Twenty-Seventh Symposium (International) on Combustion/The Combustion Institute, 1998/pp. 2815­2820 FINGERING INSTABILITY IN SOLID FUEL COMBUSTION: THE CHARACTERISTIC SCALES OF THE DEVELOPED STATE ORY ZIK, Israel We present new results on the fingering instability in solid fuel combustion. The instability

Moses, Elisha

30

Findings of Hydrogen Internal Combustion Engine Durability  

DOE Green Energy (OSTI)

Hydrogen Internal Combustion Engine (HICE) technology takes advantage of existing knowledge of combustion engines to provide a means to power passenger vehicle with hydrogen, perhaps as an interim measure while fuel cell technology continues to mature. This project seeks to provide data to determine the reliability of these engines. Data were collected from an engine operated on a dynamometer for 1000 hours of continuous use. Data were also collected from a fleet of eight (8) full-size pickup trucks powered with hydrogen-fueled engines. In this particular application, the data show that HICE technology provided reliable service during the operating period of the project. Analyses of engine components showed little sign of wear or stress except for cylinder head valves and seats. Material analysis showed signs of hydrogen embrittlement in intake valves.

Garrett Beauregard

2010-12-31T23:59:59.000Z

31

HICEV AMERICA: HYDROGEN INTERNAL COMBUSTION ENGINE  

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

HICEV AMERICA: HICEV AMERICA: HYDROGEN INTERNAL COMBUSTION ENGINE VEHICLE (HICEV) TECHNICAL SPECIFICATIONS Revision 0 November 1, 2004 Prepared by Electric Transportation Applications HICEV America Vehicle Specification i TABLE OF CONTENTS Minimum Vehicle Requirements 1 1. Regulatory Requirements 7 2. Chassis 8 3. Vehicle Characteristics 10 4. Drive System 11 5. Vehicle Performance 12 6. Hydrogen Fuel Storage System (HFSS) 14 7. Additional Vehicle Systems 17 8. Documentation 18 Appendices Appendix A - Vehicle Data 19 Appendix B - FMVSS Certification Methodology 26 DB12/7/04 HICEV America Vehicle Specification 2 MINIMUM VEHICLE REQUIREMENTS The HICEV America Program is sponsored by the U.S. Department of Energy Office of Transportation Technology to provide for independent assessment of hydrogen fueled, internal

32

CSE - International Workshop on Photon Tools for Combustion and...  

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

International Workshop on Photon Tools for Combustion and Energy Conversion - Lodging GUEST HOUSE Argonne Guest House Please remember to make your lodging reservation directly...

33

CSE - International Workshop on Photon Tools for Combustion and...  

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

International Workshop on Photon Tools for Combustion and Energy Conversion Organizing Committee Robert S. Tranter, Co-chair (Argonne National Lab) Randall E. Winans, Co-chair...

34

Internal combustion engine using premixed combustion of stratified charges  

DOE Patents (OSTI)

During a combustion cycle, a first stoichiometrically lean fuel charge is injected well prior to top dead center, preferably during the intake stroke. This first fuel charge is substantially mixed with the combustion chamber air during subsequent motion of the piston towards top dead center. A subsequent fuel charge is then injected prior to top dead center to create a stratified, locally richer mixture (but still leaner than stoichiometric) within the combustion chamber. The locally rich region within the combustion chamber has sufficient fuel density to autoignite, and its self-ignition serves to activate ignition for the lean mixture existing within the remainder of the combustion chamber. Because the mixture within the combustion chamber is overall premixed and relatively lean, NO.sub.x and soot production are significantly diminished.

Marriott, Craig D. (Rochester Hills, MI); Reitz, Rolf D. (Madison, WI

2003-12-30T23:59:59.000Z

35

Method and device for diagnosing and controlling combustion instabilities in internal combustion engines operating in or transitioning to homogeneous charge combustion ignition mode  

DOE Patents (OSTI)

This invention is a method of achieving stable, optimal mixtures of HCCI and SI in practical gasoline internal combustion engines comprising the steps of: characterizing the combustion process based on combustion process measurements, determining the ratio of conventional and HCCI combustion, determining the trajectory (sequence) of states for consecutive combustion processes, and determining subsequent combustion process modifications using said information to steer the engine combustion toward desired behavior.

Wagner, Robert M [Knoxville, TN; Daw, Charles S [Knoxville, TN; Green, Johney B [Knoxville, TN; Edwards, Kevin D [Knoxville, TN

2008-10-07T23:59:59.000Z

36

Modeling piston skirt lubrication in internal combustion engines  

E-Print Network (OSTI)

Ever-increasing demand for reduction of the undesirable emissions from the internal combustion engines propels broader effort in auto industry to design more fuel efficient engines. One of the major focuses is the reduction ...

Bai, Dongfang, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

37

Control of Combustion Processes in an Internal Combustion Engine by Low-Temperature Plasma  

Science Conference Proceedings (OSTI)

A new method of operation of internal combustion engines enhances power and reduces fuel consumption and exhaust toxicity. Low-temperature plasma control combines working processes of thermal engines and steam machines into a single process.

E. A. Olenev

2002-07-01T23:59:59.000Z

38

Advanced Vehicle Testing Activity: Hydrogen Internal Combustion...  

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

F-150 16V Hydrogen ICE Conversion - Testing Results (PDF 110 KB) 2003 Ford F-150 Pickup Truck Ford F-150 HydrogenCNG Blended Fuels Performance Testing in a Ford F-150 (up to 30%...

39

NREL Showcases Hydrogen Internal Combustion Engine Bus, Helps DOE Set Standards for Outreach (Fact Sheet)  

SciTech Connect

This fact sheet describes the National Renewable Energy Laboratory's (NREL's) accomplishments in showcasing a Ford hydrogen-powered internal combustion engine (H2ICE) bus at The Taste of Colorado festival in Denver. NREL started using its U.S. Department of Energy-funded H2ICE bus in May 2010 as the primary shuttle vehicle for VIP visitors, members of the media, and new employees. In September 2010, NREL featured the bus at The Taste of Colorado. This was the first major outreach event for the bus. NREL's educational brochure, vehicle wrap designs, and outreach efforts serve as a model for other organizations with DOE-funded H2ICE buses. Work was performed by the Hydrogen Education Group and Market Transformation Group in the Hydrogen Technologies and Systems Center.

2010-11-01T23:59:59.000Z

40

8th International symposium on transport phenomena in combustion  

DOE Green Energy (OSTI)

The 8th International Symposium on Transport Phenomena in Combustion will be held in San Francisco, California, U.S.A., July 16-20, 1995, under the auspices of the Pacific Center of Thermal-Fluids Engineering. The purpose of the Symposium is to provide a forum for researchers and practitioners from around the world to present new developments and discuss the state of the art and future directions and priorities in the areas of transport phenomena in combustion. The Symposium is the eighth in a series; previous venues were Honolulu 1985, Tokyo 1987, Taipei 1988, Sydney 1991, Beijing 1992, Seoul 1993 and Acapulco 1994, with emphasis on various aspects of transport phenomena. The current Symposium theme is combustion. The Symposium has assembled a balanced program with topics ranging from fundamental research to contemporary applications of combustion theory. Invited keynote lecturers will provide extensive reviews of topics of great interest in combustion. Colloquia will stress recent advances and innovations in fire spread and suppression, and in low NO{sub x} burners, furnaces, boilers, internal combustion engines, and other practical combustion systems. Finally, numerous papers will contribute to the fundamental understanding of complex processes in combustion. This document contains abstracts of papers to be presented at the Symposium.

NONE

1995-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Industrial Combustion Emissions (ICE) model, Version 6. 0. Model-Simulation  

SciTech Connect

The Industrial Combustion Emissions (ICE) Model was developed by the Environmental Protection Agency for use by the National Acid Precipitation Assessment Program (NAPAP) in preparing future assessments of industrial-boiler emissions. The ICE Model user's manual includes a summary of user options and software characteristics, a description of the input data files, and a description of the procedures for operation of the ICE Model. Proper formatting of files and creation of job-control language are discussed. The ICE Model projects for each State the sulfur dioxide, sulfates, and nitrogen oxides emissions from fossil fuel combustion in industrial boilers. Projections of emissions and costs of boiler generation, including emission-control costs, are projected for the years 1985, 1990, 1995, 2000, 2010, 2020, and 2030.

Elliott, D.J.; Hogan, T.

1987-12-01T23:59:59.000Z

42

NREL Showcases Hydrogen Internal Combustion Engine Bus, Helps DOE Set Standards for Outreach (Fact Sheet), Hydrogen and Fuel Cell Technical Highlights (HFCTH)  

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

557 * November 2010 557 * November 2010 NREL Showcases Hydrogen Internal Combustion Engine Bus, Helps DOE Set Standards for Outreach National Renewable Energy Laboratory (NREL) Teams: Hydrogen Education, Melanie Caton; Market Transformation, Michael Ulsh Accomplishment: NREL started using its Ford hydrogen-powered internal combustion engine (H 2 ICE) bus in May 2010 as the primary shuttle vehicle for VIP visitors, members of the media, and new employees. As the first national laboratory to receive such a bus, NREL

43

Third international workshop on ice storage for cooling applications  

DOE Green Energy (OSTI)

The third international workshop on ice storage for cooling applications which was informal and interactive in nature, was open to persons interested in all ice-growing technologies and in ice storage, both seasonal and diurnal. Presentations were made on some 20 topics, ranging from freezers in Alaska to ice cooling of commercial jet aircraft. Workshop tours included visits to ice-storage systems at Commonwealth Edison's facilities in Bolingbrook and Des Plaines Valley, the A.C. Neilsen builing in Northbrook, and the new State of Illinois Center in Chicago. The first workshop in the present series considered the future of ice storage and predicted applications in the agricultural sector, desalinization, and commercial ice production. Progress has been rapid in the intervening two years, and an important topic at the third workshop was the possible use of ''warm ices'' (clathrate hydrates) for energy storage. This report consists primarily of abstracts of presentations made at the workshop. Persons wishing to obtain further information about particular papers should contact the speakers directly; speakers' addresses and telephone numbers are listed in this report.

Gorski, A.J. (comp.)

1986-04-01T23:59:59.000Z

44

Alcohol fuel conversion apparatus for internal combustion engines  

Science Conference Proceedings (OSTI)

An alcohol fuel conversion apparatus is described for internal combustion engines comprising: fuel storage means containing an alcohol fuel; primary heat exchanger means in fluid communication with the fuel storage means for transferring heat to pressurized alcohol contained within the heat exchanger means; a heat source for heating the heat exchange means; pressure relief valve means, in closed fluid communication with the primary heat exchange means, operable to release heated pressurized alcohol into an expansion chamber; converter means, including the expansion chamber, in fluid communication with the pressure relief valve means for receiving the heated pressurized alcohol and for the vaporization of the alcohol; carburetor means in fluid communication with the converter means for metering and mixing vaporized alcohol with air for proper combustion and for feeding the mixture to an internal combustion engine; and pump means for pressurized pumping of alcohol from the fuel storage means to the heat exchanger means, converter means, carburetor means, and to the engine.

Carroll, B.I.

1987-01-13T23:59:59.000Z

45

High efficiency stoichiometric internal combustion engine system  

DOE Patents (OSTI)

A power system including a stoichiometric compression ignition engine in which a roots blower is positioned in the air intake for the engine to control air flow. Air flow is decreased during part power conditions to maintain the air-fuel ratio in the combustion chamber of the engine at stoichiometric, thus enabling the use of inexpensive three-way catalyst to reduce oxides of nitrogen. The roots blower is connected to a motor generator so that when air flow is reduced, electrical energy is stored which is made available either to the roots blower to temporarily increase air flow or to the system electrical load and thus recapture energy that would otherwise be lost in reducing air flow.

Winsor, Richard Edward (Waterloo, IA); Chase, Scott Allen (Cedar Falls, IA)

2009-06-02T23:59:59.000Z

46

Numerical modeling of hydrogen-fueled internal combustion engines  

DOE Green Energy (OSTI)

The planned use of hydrogen as the energy carrier of the future introduces new challenges and opportunities, especially to the engine design community. Hydrogen is a bio-friendly fuel that can be produced from renewable resources and has no carbon dioxide combustion products; and in a properly designed ICE, almost zero NO{sub x} and hydrocarbon emissions can be achieved. Because of the unique properties of hydrogen combustion - in particular the highly wrinkled nature of the laminar flame front due to the preferential diffusion instability - modeling approaches for hydrocarbon gaseous fuels are not generally applicable to hydrogen combustion. This paper reports on the current progress to develop a engine design capability based on KIVA family of codes for hydrogen-fueled, spark-ignited engines in support of the National Hydrogen Program. A turbulent combustion model, based on a modified eddy-turnover model in conjunction with an intake flow valve model, is found to describe well the efficiency and NO{sub x} emissions of this engine satisfy the Equivalent Zero Emission Vehicle (EZEV) standard established by the California Resource Board. 26 refs., 10 figs., 1 tab.

Johnson, N.L.; Amsden, A.A.

1996-12-31T23:59:59.000Z

47

Multi-dimensional computation of compressible reacting flows through porous media to apply to Internal Combustion Engine simulation  

Science Conference Proceedings (OSTI)

In this work, a new multi-dimensional Finite Volume (FV) solver of partial differential equations (PDEs) for compressible and reacting flows through porous media has been developed. The solver makes use of a pseudo-staggered arrangement, in order to ... Keywords: CFD, Computational fluid dynamics, DPF, Diesel exhaust after-treatment simulation, Diesel particulate filters, ICE, Internal combustion engines, Numerical methods, Porous media solver

F. Piscaglia; A. Montorfano; A. Onorati

2010-10-01T23:59:59.000Z

48

Fuel injector nozzle for an internal combustion engine  

DOE Green Energy (OSTI)

A direct injection fuel injector includes a nozzle tip having a plurality of passages allowing fluid communication between an inner nozzle tip surface portion and an outer nozzle tip surface portion and directly into a combustion chamber of an internal combustion engine. A first group of the passages have inner surface apertures located substantially in a first common plane. A second group of the passages have inner surface apertures located substantially in at least a second common plane substantially parallel to the first common plane. The second group has more passages than the first group.

Cavanagh, Mark S. (Bloomington, IL); Urven, Jr., Roger L. (Colona, IL); Lawrence, Keith E. (Peoria, IL)

2008-11-04T23:59:59.000Z

49

Apparatus for photocatalytic destruction of internal combustion engine emissions during cold start  

DOE Patents (OSTI)

A method and apparatus for the destruction of emissions from an internal combustion engine wherein a substrate coated with TiO.sub.2 is exposed to a light source in the exhaust system of an internal combustion engine thereby catalyzing oxidation/reduction reactions between gaseous hydrocarbons, carbon monoxide, nitrogen oxides and oxygen in the exhaust of the internal combustion engine.

Janata, Jiri (Richland, WA); McVay, Gary L. (Richland, WA); Peden, Charles H. (West Richland, WA); Exarhos, Gregory J. (Richland, WA)

1998-01-01T23:59:59.000Z

50

Modeling the lubrication of the piston ring pack in internal combustion engines using the deterministic method  

E-Print Network (OSTI)

Piston ring packs are used in internal combustion engines to seal both the high pressure gas in the combustion chamber and the lubricant oil in the crank case. The interaction between the piston ring pack and the cylinder ...

Chen, Haijie

2011-01-01T23:59:59.000Z

51

Nitrogen enriched combustion of a natural gas internal combustion engine to reduce NO.sub.x emissions  

DOE Green Energy (OSTI)

A method and system for reducing nitrous oxide emissions from an internal combustion engine. An input gas stream of natural gas includes a nitrogen gas enrichment which reduces nitrous oxide emissions. In addition ignition timing for gas combustion is advanced to improve FCE while maintaining lower nitrous oxide emissions.

Biruduganti, Munidhar S. (Naperville, IL); Gupta, Sreenath Borra (Naperville, IL); Sekar, R. Raj (Naperville, IL); McConnell, Steven S. (Shorewood, IL)

2008-11-25T23:59:59.000Z

52

Partially-Premixed Flames in Internal Combustion Engines  

DOE Green Energy (OSTI)

This was a joint university-industry research program funded by the Partnerships for the Academic-Industrial Research Program (PAIR). The research examined partially premixed flames in laboratory and internal combustion engine environments at Vanderbilt University, University of Michigan, and General Motors Research and Development. At Vanderbilt University, stretched and curved ''tubular'' premixed flames were measured in a unique optically accessible burner with laser-induced spontaneous Raman scattering. Comparisons of optically measured temperature and species concentration profiles to detailed transport, complex chemistry simulations showed good correspondence at low-stretch conditions in the tubular flame. However, there were significant discrepancies at high-stretch conditions near flame extinction. The tubular flame predictions were found to be very sensitive to the specific hydrogen-air chemical kinetic mechanism and four different mechanisms were compared. In addition, the thermo-diffusive properties of the deficient reactant, H2, strongly affected the tubular flame structure. The poor prediction near extinction is most likely due to deficiencies in the chemical kinetic mechanisms near extinction. At the University of Michigan, an optical direct-injected engine was built up for laser-induced fluorescence imaging experiments on mixing and combustion under stratified charge combustion conditions with the assistance of General Motors. Laser attenuation effects were characterized both experimentally and numerically to improve laser imaging during the initial phase of the gasoline-air mixture development. Toluene was added to the isooctane fuel to image the fuel-air equivalence ratio in an optically accessible direct-injected gasoline engine. Temperature effects on the toluene imaging of fuel-air equivalence ratio were characterized. For the first time, oxygen imaging was accomplished in an internal combustion engine by combination of two fluorescence trackers, toluene and 3-pentanone. With this method, oxygen, fuel and equivalence ratio were measured in the cylinder. At General Motors, graduate students from the University of Michigan and Vanderbilt University worked with GM researchers to develop high-speed imaging methods for optically accessible direct-injection engines. Spark-emission spectroscopy was combined with high-speed spectrally-resolved combustion imaging in a direct-injected engine.

Robert W. Pitz; Michael C. Drake; Todd D. Fansler; Volker Sick

2003-11-05T23:59:59.000Z

53

A coal-water slurry fueled internal combustion engine and method for operating same  

DOE Patents (OSTI)

An internal combustion engine fueled with a coal-water slurry is described. About 90 percent of the coal-water slurry charge utilized in the power cycle of the engine is directly injected into the main combustion chamber where it is ignited by a hot stream of combustion gases discharged from a pilot combustion chamber of a size less than about 10 percent of the total clearance volume of main combustion chamber with the piston at top dead center. The stream of hot combustion gases is provided by injecting less than about 10 percent of the total coal-water slurry charge into the pilot combustion chamber and using a portion of the air from the main combustion chamber that has been heated by the walls defining the pilot combustion chamber as the ignition source for the coal-water slurry injected into the pilot combustion chamber.

McMillian, M.H.

1992-12-31T23:59:59.000Z

54

Coal-water slurry fuel internal combustion engine and method for operating same  

SciTech Connect

An internal combustion engine fueled with a coal-water slurry is described. About 90 percent of the coal-water slurry charge utilized in the power cycle of the engine is directly injected into the main combustion chamber where it is ignited by a hot stream of combustion gases discharged from a pilot combustion chamber of a size less than about 10 percent of the total clearance volume of main combustion chamber with the piston at top dead center. The stream of hot combustion gases is provided by injecting less than about 10 percent of the total coal-water slurry charge into the pilot combustion chamber and using a portion of the air from the main combustion chamber that has been heated by the walls defining the pilot combustion chamber as the ignition source for the coal-water slurry injected into the pilot combustion chamber.

McMillian, Michael H. (Fairmont, WV)

1992-01-01T23:59:59.000Z

55

1 Copyright 2003 by ASME 17th International Conference on Fluidised Bed Combustion  

E-Print Network (OSTI)

1 Copyright © 2003 by ASME 17th FBC 17th International Conference on Fluidised Bed Combustion May COMBUSTION OF HIGH-PVC SOLID WASTE WITH HCl RECOVERY Loay Saeed, Antti Tohka, Ron Zevenhoven* Helsinki.zevenhoven@hut.fi * Corresponding author ABSTRACT A process for two-stage combustion of high-PVC solid waste with HCl recovery

Zevenhoven, Ron

56

Exhaust gas recirculation system for an internal combustion engine  

SciTech Connect

An exhaust gas recirculation system for an internal combustion engine comprises an exhaust driven turbocharger having a low pressure turbine outlet in fluid communication with an exhaust gas conduit. The turbocharger also includes a low pressure compressor intake and a high pressure compressor outlet in communication with an intake air conduit. An exhaust gas recirculation conduit fluidly communicates with the exhaust gas conduit to divert a portion of exhaust gas to a low pressure exhaust gas recirculation branch extending between the exhaust gas recirculation conduit and an engine intake system for delivery of exhaust gas thereto. A high pressure exhaust gas recirculation branch extends between the exhaust gas recirculation conduit and the compressor intake and delivers exhaust gas to the compressor for mixing with a compressed intake charge for delivery to the intake system.

Wu, Ko-Jen

2013-05-21T23:59:59.000Z

57

Water cooled scavenged crankcase type otto internal combustion engine  

Science Conference Proceedings (OSTI)

In a system for a water cooled scavenged crankcase type two-cycle internal combustion engine comprising: a heat reclaimation system for extracting heat from an engine jacket for heating water supplied form an add-on reservoir via a heat exchanger located within the engine cylinder cooling system, the water being subsequently additionally heated by an exhaust pipe type heat exchanger to a superheated steam state and thence conveyed by a conduit to a steam lubricator for adjustably conveying in variably timed spaced succession intervals of regulated droplets of high viscous oil, fortified with adde graphite and tallow enrichment lubricant ingredients, and thence conveying such by steam at atmospheric pressure into an intake manifold which receives a carbureted air/fuel mixture into the crankcase via a manually operated auxiliary air intake device and way check valve and fire screen, due to suction effect of the piston up stroke action of the piston during engine operation.

Bidwell, H.

1988-10-25T23:59:59.000Z

58

Multiple fuel supply system for an internal combustion engine  

DOE Patents (OSTI)

A multiple fuel supply or an internal combustion engine wherein phase separation of components is deliberately induced. The resulting separation permits the use of a single fuel tank to supply components of either or both phases to the engine. Specifically, phase separation of a gasoline/methanol blend is induced by the addition of a minor amount of water sufficient to guarantee separation into an upper gasoline phase and a lower methanol/water phase. A single fuel tank holds the two-phase liquid with separate fuel pickups and separate level indicators for each phase. Either gasoline or methanol, or both, can be supplied to the engine as required by predetermined parameters. A fuel supply system for a phase-separated multiple fuel supply contained in a single fuel tank is described.

Crothers, William T. (Sunol, CA)

1977-01-01T23:59:59.000Z

59

Anti-overrunning device for an internal combustion engine  

Science Conference Proceedings (OSTI)

An anti-overrunning device is described for an internal combustion engine, comprising: (a) a carburetor having a venture passage for a fuel and air mixture, (b) a throttle valve in the passage movable to open and closed positions to regulate the effective area of the passage, (c) an actuator including a diaphragm responsive to pneumatic pressure operatively connected to the throttle valve, (d) an inertial pump comprising a housing having a weighted diaphragm mounted on an engine and subject to engine vibrations to develop pneumatic pressure, the inertial pump having an outlet connection to the actuator, and (e) a vibration sensor valve interposed in the outlet connection between the inertial pump and the actuator responsive to excessive vibration of the engine to connect the pump pressure to the actuator to cause movement of the throttle valve in a closing direction to reduce the speed of the engine.

Sejimo, Y.; Tsubai, T.; Tobinai, T.

1989-03-07T23:59:59.000Z

60

Anti-overrunning device for an internal combustion engine  

SciTech Connect

An anti-overrunning device for an internal combustion engine is described, consisting of (a) a carburetor having a venturi passage for a fuel and air mixture, (b) a throttle valve in the passage movable to open and closed positions to regulate the effective area of the passage, (c) an actuator including a diaphragm responsive to pneumatic pressure operatively connected to the throttle valve, (d) an inertial pump comprising a housing having a weighted diaphragm mounted on an engine and subject to engine vibrations to develop pneumatic pressure, the inertial pump having an inlet to receive atmospheric air and an outlet connected to the actuator, and (e) a vibration sensor in communication with the inertial pump inlet responsive to excessive vibration of the engine to connect the inlet to atmosphere to initiate pumping air from the outlet to the actuator to cause movement of the actuator diaphragm and the throttle valve in a closing direction to reduce the speed of the engine.

Sejimo, Y.; Tsubai, T.; Tobinai, T.

1989-03-07T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Automatic fault diagnosis of internal combustion engine based on spectrogram and artificial neural network  

Science Conference Proceedings (OSTI)

This paper presents a signal analysis technique for internal combustion (IC) engine fault diagnosis based on the spectrogram and artificial neural network (ANN). Condition monitoring and fault diagnosis of IC engine through acoustic signal analysis is ... Keywords: acoustic analysis, fault diagnosis, internal combustion engine

Sandeep Kumar Yadav; Prem Kumar Kalra

2010-04-01T23:59:59.000Z

62

Proceedings: 14th International Symposium on Management and Use of Coal Combustion Products (CCPs), Volume 1  

Science Conference Proceedings (OSTI)

International research interest in coal combustion product (CCP) use continues to grow, with promising prospects for avoiding disposal costs, reducing greenhouse gas emissions, and generating revenue from CCP sales. Topics discussed at the 14th International Symposium on Management and Use of Coal Combustion Products included fundamental research on CCP use, product marketing, applied research, CCP management and environmental issues, and commercial CCP applications.

2001-01-04T23:59:59.000Z

63

Proceedings: 14th International Symposium on Management and Use of Coal Combustion Products (CCPs): Volume 2  

Science Conference Proceedings (OSTI)

International research interest in coal combustion product (CCP) use continues to grow, with promising prospects for avoiding disposal costs, reducing greenhouse gas emissions, and generating revenue from CCP sales. Topics discussed at the 14th International Symposium on Management and Use of Coal Combustion Products included fundamental research on CCP use, product marketing, applied research, CCP management and environmental issues, and commercial CCP applications.

2001-01-04T23:59:59.000Z

64

Microwave-Assisted Ignition for Improved Internal Combustion Engine Efficiency  

E-Print Network (OSTI)

thermal efficiency for electricity generation from combustible sources ( , or as a fraction of energy converted in the case of solar

DeFilippo, Anthony Cesar

2013-01-01T23:59:59.000Z

65

Traveling-Wave Thermoacoustic Engines With Internal Combustion  

DOE Patents (OSTI)

Thermoacoustic devices are disclosed wherein, for some embodiments, a combustion zone provides heat to a regenerator using a mean flow of compressible fluid. In other embodiments, burning of a combustible mixture within the combustion zone is pulsed in phase with the acoustic pressure oscillations to increase acoustic power output. In an example embodiment, the combustion zone and the regenerator are thermally insulated from other components within the thermoacoustic device.

Weiland, Nathan Thomas (Blacksburg, VA); Zinn, Ben T. (Atlanta, GA); Swift, Gregory William (Sante Fe, NM)

2004-05-11T23:59:59.000Z

66

Towards a detailed soot model for internal combustion engines  

Science Conference Proceedings (OSTI)

In this work, we present a detailed model for the formation of soot in internal combustion engines describing not only bulk quantities such as soot mass, number density, volume fraction, and surface area but also the morphology and chemical composition of soot aggregates. The new model is based on the Stochastic Reactor Model (SRM) engine code, which uses detailed chemistry and takes into account convective heat transfer and turbulent mixing, and the soot formation is accounted for by SWEEP, a population balance solver based on a Monte Carlo method. In order to couple the gas-phase to the particulate phase, a detailed chemical kinetic mechanism describing the combustion of Primary Reference Fuels (PRFs) is extended to include small Polycyclic Aromatic Hydrocarbons (PAHs) such as pyrene, which function as soot precursor species for particle inception in the soot model. Apart from providing averaged quantities as functions of crank angle like soot mass, volume fraction, aggregate diameter, and the number of primary particles per aggregate for example, the integrated model also gives detailed information such as aggregate and primary particle size distribution functions. In addition, specifics about aggregate structure and composition, including C/H ratio and PAH ring count distributions, and images similar to those produced with Transmission Electron Microscopes (TEMs), can be obtained. The new model is applied to simulate an n-heptane fuelled Homogeneous Charge Compression Ignition (HCCI) engine which is operated at an equivalence ratio of 1.93. In-cylinder pressure and heat release predictions show satisfactory agreement with measurements. Furthermore, simulated aggregate size distributions as well as their time evolution are found to qualitatively agree with those obtained experimentally through snatch sampling. It is also observed both in the experiment as well as in the simulation that aggregates in the trapped residual gases play a vital role in the soot formation process. (author)

Mosbach, Sebastian; Celnik, Matthew S.; Raj, Abhijeet; Kraft, Markus [Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA (United Kingdom); Zhang, Hongzhi R. [Department of Chemical Engineering, University of Utah, 1495 East 100 South, Kennecott Research Building, Salt Lake City, UT 84112 (United States); Kubo, Shuichi [Frontier Research Center, Toyota Central R and D Labs., Inc., Nagakute, Aichi 480-1192 (Japan); Kim, Kyoung-Oh [Higashifuji Technical Center, Toyota Motor Corporation, Mishuku 1200, Susono, Shizuoka 480-1193 (Japan)

2009-06-15T23:59:59.000Z

67

Mitigation of direct containment heating and hydrogen combustion events in ice condenser plants  

DOE Green Energy (OSTI)

Using Sequoyah as a representative plant, calculations have been performed with a developmental version of the CONTAIN computer code to assess the effectiveness of various possible improvements to ice condenser containments in mitigating severe accident scenarios involving direct containment heating (DCH) and/or hydrogen combustion. Mitigation strategies considered included backup power for igniters and/or air return fans, augmented igniter systems, containment venting, containment inerting, subatmospheric containment operation, reduced ice condenser bypass, and primary system depressurization. Various combinations of these improvements were also considered. Only inerting the containment or primary system depressurization combined with backup power supplies for the igniter systems resulted in large decreases in the peak pressures calculated to result from DCH events. Potential hydrogen detonation threats were also assessed; providing backup power for both the igniter systems and the air return fans would significantly reduce the potential for detonations but might not totally eliminate it. Sensitivity studies using the NUREG-1150 PRA methodology indicated that primary system depressurization combined with backup power for both igniters and fans could reduce the contribution to the mean risk potential of the class of events considered by about a factor of three. 7 refs., 6 figs., 6 tabs.

Williams, D.C.; Gregory, J.J. (Sandia National Labs., Albuquerque, NM (USA))

1990-10-01T23:59:59.000Z

68

Evaluation and silicon nitride internal combustion engine components  

DOE Green Energy (OSTI)

The feasibility of silicon nitride (Si[sub 3]N[sub 4]) use in internal combustion engines was studied by testing three different components for wear resistance and lower reciprocating mass. The information obtained from these preliminary spin rig and engine tests indicates several design changes are necessary to survive high-stress engine applications. The three silicon nitride components tested were valve spring retainers, tappet rollers, and fuel pump push rod ends. Garrett Ceramic Components' gas-pressure sinterable Si[sub 3]N[sub 4] (GS-44) was used to fabricate the above components. Components were final machined from densified blanks that had been green formed by isostatic pressing of GS-44 granules. Spin rig testing of the valve spring retainers indicated that these Si[sub 3]N[sub 4] components could survive at high RPM levels (9,500) when teamed with silicon nitride valves and lower spring tension than standard titanium components. Silicon nitride tappet rollers showed no wear on roller O.D. or I.D. surfaces, steel axles and lifters; however, due to the uncrowned design of these particular rollers the cam lobes indicated wear after spin rig testing. Fuel pump push rod ends were successful at reducing wear on the cam lobe and rod end when tested on spin rigs and in real-world race applications.

Voldrich, W. (Allied-Signal Aerospace Co., Torrance, CA (United States). Garrett Ceramic Components Div.)

1992-04-01T23:59:59.000Z

69

CSE - International Workshop on Photon Tools for Combustion and...  

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

and other large light sources to energy conversion research -- particularly to combustion and the productionstorage of energy from novel sources. The inaugural meeting was...

70

CSE - International Workshop on Photon Tools for Combustion and...  

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

Combustion Chair: Randall E. Winans, Argonne National Laboratory 1:55 Organic Radicals in Pyrolysis of Furans and Biomass-Based Fuels Barney Ellison University of Boulder at...

71

MECH 410N Outline-2010.doc MECH 410N -Internal Combustion Engines  

E-Print Network (OSTI)

MECH 410N Outline-2010.doc 01/09/2010 MECH 410N - Internal Combustion Engines COURSE OUTLINE 1-IGNITION ENGINES 2.1. Air-Standard & Fuel-Air Cycle analysis 2.2. Performance Criteria 2.3. SI Engine Combustion 3.2. The Limited Pressure Cycle 3.3. The fuel-air cycle with complete combustion 3.4. Turbocharged

72

Running out of steam. Part III. Development blues. [Alternatives to automotive internal combustion engines  

SciTech Connect

The history is given of systems that have been looked upon alternately as either strong competitors or engineering curiosities in the revived search to replace the Otto-cycle power plant with a cleaner, more efficient, and equally reliable passenger car engine. These recent efforts are largely attempts to polish up old technologies that were around long before a single model-T rolled off Henry Ford's first assembly line. The first steam vehicle, for example, hit the road more than 200 years ago and over the years has undergone considerable refinement. But, in spite of this long history and with the exception of short bursts of enthusiasm, the development of a steam-powered passenger car has never been high on the automobile industry's list of priorities. Some clues are given as to why this is true and why a number of ''think tank'' reports published over the past few years on the future role of steam-driven cars have ranged from mildly optimistic to forthrightly pessimistic. Electric vehicles have had a somewhat parallel history. They were early competitors with the Otto engine, but, unlike the steam cars, they have never completely disappeared. Indeed, for some special uses, they have outperformed all varieties of internal combustion engines (I.C.E.). Further inroads into the Otto-cycle car market, however, depend upon improved car design and the advancement of battery technology, an area of research that has been painfully slow in yielding results. Were it not for the wide public interest in environmental and resource issues that has been translated into new laws dealing with air pollution and resource management, the auto industry would have been content to sit on its I.C.E. for some time to come.

Reitze, A.W. Jr.

1977-01-01T23:59:59.000Z

73

Experimental Study of Air-Fuel Ratio Control Strategy for a Hydrogen Internal Combustion Engine  

Science Conference Proceedings (OSTI)

One of the most attractive combustive features for hydrogen fuel is its wide range of flammability. The wide flammability limits allow hydrogen engine to be operated at extremely lean air–fuel ratios compared to conventional fuels. Concepts for ... Keywords: Hydrogen internal combustion engine, Air/Fuel ratio, Control strategy

Zhong-yu Zhao; Fu-shui Liu

2010-11-01T23:59:59.000Z

74

Industrial Combustion Emissions (ICE) model, Version 6. 0. User's manual. Report for November 1984-August 1987  

SciTech Connect

This report is a user's manual for the Industrial Combustion Emissions (ICE) model. It summarizes user options and software characteristics, and describes both the input data files and procedures for operating the model. It discusses proper formatting of files and creation of job-control language. The model projects for each state the emissions of sulfur oxides, sulfates, and nitrogen oxides from fossil-fuel combustion in industrial boilers. Emissions and costs of boiler generation, including emission-control costs, are projected for the years 1985, 1990, 1995, 2000, 2010, 2020, and 2030.

Hogan, T.

1988-02-01T23:59:59.000Z

75

THE EFFECTS OF HYDROGEN ADDITION AND INTAKE-INDUCED SWIRL ON THE CHARACTERISTICS OF NATURAL GAS COMBUSTION IN A SINGLE-CYLINDER SPARK-IGNITED ENGINE.  

E-Print Network (OSTI)

??Compressed natural gas (CNG) is an alternative fuel of interest for internal combustion engines (ICEs) in the mass transit and vocational applications. Increasingly, due to… (more)

Corrigan, Melanie

2011-01-01T23:59:59.000Z

76

Effects of lubricant viscosity and surface texturing on ring-pack performance in internal combustion engines  

E-Print Network (OSTI)

The piston ring-pack contributes approximately 25% of the mechanical losses in an internal combustion engine. Both lubricant viscosity and surface texturing were investigated in an effort to reduce this ring-pack friction ...

Takata, Rosalind (Rosalind Kazuko), 1978-

2006-01-01T23:59:59.000Z

77

Modeling the structural behavior of the piston rings under different boundary conditions in internal combustion engines  

E-Print Network (OSTI)

In the process of designing internal combustion engine, piston ring plays an important role in fulfilling the requirements of camber gas sealing, friction reduction and lubrication oil consumption. The goal of this thesis ...

Xu, Dian

2010-01-01T23:59:59.000Z

78

Numerical modeling of piston secondary motion and skirt lubrication in internal combustion engines  

E-Print Network (OSTI)

Internal combustion engines dominate transportation of people and goods, contributing significantly to air pollution, and requiring large amounts of fossil fuels. With increasing public concern about the environment and ...

McClure, Fiona

2007-01-01T23:59:59.000Z

79

Water distillation using waste engine heat from an internal combustion engine  

E-Print Network (OSTI)

To meet the needs of forward deployed soldiers and disaster relief personnel, a mobile water distillation system was designed and tested. This system uses waste engine heat from the exhaust flow of an internal combustion ...

Mears, Kevin S

2006-01-01T23:59:59.000Z

80

Materials Reliability Program: Aging Management Strategies for Westinghouse and Combustion Engineering PWR Internals (MRP-232)  

Science Conference Proceedings (OSTI)

This report summarizes the aging management strategy development for Westinghouse and Combustion Engineering (CE) reactor internals. This report provides the technical basis for the aging management requirements of Westinghouse and CE reactor internals in the Pressurized Water Reactor (PWR) internals I&E guidelines (MRP-227-Rev. 0).

2008-12-22T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Near-inertial internal wave field in the Canada Basin from Ice-Tethered Profilers  

Science Conference Proceedings (OSTI)

Salinity and temperature profiles from drifting Ice-Tethered Profilers in the Beaufort Gyre region of the Canada Basin are used to characterize and quantify the regional near-inertial internal wave field over one year. Vertical displacements of ...

Hayley V. Dosser; Luc Rainville; John M. Toole

82

Modeling engine oil vaporization and transport of the oil vapor in the piston ring pack on internal combustion engines.  

E-Print Network (OSTI)

??A model was developed to study engine oil vaporization and oil vapor transport in the piston ring pack of internal combustion engines. With the assumption… (more)

Cho, Yeunwoo, 1973-

2004-01-01T23:59:59.000Z

83

http://rcc.its.psu.edu/hpc Simulation of In-Cylinder Processes in Internal Combustion Engines  

E-Print Network (OSTI)

http://rcc.its.psu.edu/hpc Simulation of In-Cylinder Processes in Internal Combustion Engines into clean and efficient turbulent combustion remains imperative. A single grand challenge was identified in a 2006 DOE workshop on clean and efficient combustion of 21st century transportation fuels [1]: "The

Bjørnstad, Ottar Nordal

84

"Optimization of efficiency of internal combustion engines via using  

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

Optimization of efficiency of internal combustion engines via using Optimization of efficiency of internal combustion engines via using spinning gas and non-spectroscopic method of determining gas constituents through rotation ..--.. Inventors Nathaniel Fisch, Vasily Geyko An important use of the disclosed approach is the improvement efficiency of thermal cycles and as result efficiency of engines. Different cycles and different ways of compression of spinning gas may be used to maximize possible efficiency gain. In conventional internal combustion engines, gas spinning is either not used at all or used only with the purpose of increasing turbulence and better mixing. In the disclosed method, gas rotation is used for energy storage, hence it allows an improvement in thermal cycle efficiency. To achieve significant effect related to

85

COMBUSTION  

E-Print Network (OSTI)

This document presents an overview of combustion as a waste management strategy in relation to the development of material-specific emission factors for EPA’s Waste Reduction Model (WARM). Included are estimates of the net greenhouse gas (GHG) emissions from combustion of most of the materials considered in WARM and several categories of mixed waste. 1. A SUMMARY OF THE GHG IMPLICATIONS OF COMBUSTION Combustion of municipal solid waste (MSW) results in emissions of CO 2 and N2O. Note that CO2 from combustion of biomass (such as paper products and yard trimmings) is not counted because it is biogenic (as explained in the Introduction & Overview chapter). WARM estimates emissions from combustion of MSW in waste-to-energy (WTE) facilities. WARM does not consider any recovery of materials from the MSW stream that may occur before MSW is delivered to the combustor. WTE facilities can be divided into three categories: (1) mass burn, (2) modular and (3) refusederived fuel (RDF). A mass burn facility generates electricity and/or steam from the combustion of

unknown authors

2012-01-01T23:59:59.000Z

86

Monitoring of some functional parameters for an internal-combustion engine  

Science Conference Proceedings (OSTI)

This work presents the achievement of a monitoring, recording, processing and interpretation concept, at laboratory scale, of some functional parameters for a spark-ignition engine, based on an electronic equipment, which measures the values of 17 parameters ... Keywords: cylinder, internal-combustion engine, pressure, sensors, speed

Sorin Ra?iu; Gabriel Nicolae Popa; Vasile Alexa

2008-11-01T23:59:59.000Z

87

Apparatus for improving gasoline comsumption, power and reducing emission pollutants of internal combustion engines  

Science Conference Proceedings (OSTI)

This patent describes an apparatus for improving performance and reducing fuel comsumption and emission pollutants from an internal combustion gasoline engine. This apparatus consists of: 1.) an internal combustion gasoline engine having, in part, an intake manifold and an exhaust manifold where the exhaust manifold is modified to include a manifold exhaust port; 2.) a modified internal combustion engine carburetor connected to the intake manifold on the engine; 3.) a positive crankcase ventilation valve (PCV) which has an input port conventionally connected to the internal combustion engine and also has a PCV output port; 4.) an automobile fuel pump having an input connected to a conventional fuel tank and having a fuel pump output port; 5.) a thermic reactor; 6.) a thermic reactor air cleaner pneumatically connected to the clean air input port on the thermic reactor; 7.) a catalytic gas injector; 8.) a fuel regulator/restrictor consisting of a solid block having a fuel pump input port and a carburetor output port.

Piedrafita, R.

1986-02-18T23:59:59.000Z

88

The railplug: A new ignitor for internal combustion engines  

SciTech Connect

A miniaturized railgun, termed the {open_quotes}railplug,{close_quotes} has been developed for use as an ignitor of combustible mixtures in engines. The device drives a plasma armature in a multishot mode with the aim of creating a line-source for ignition rather than the point source provided by traditional spark plugs. Railplugs have been fabricated in both parallel rail and co-axial rail geometries. The railplug differs from most plasma armature railguns in two striking ways: (1) no fuse or pellet is used to initially establish the plasma (the armature is simply the arc created by a high-voltage pulse), and (2) it operates over a range of elevated pressures (up to 500 psi). Consequently, the railplug power supply must provide a high voltage spike to breakdown the gap between the rails followed by a sustaining voltage that supplies current to drive the arc down the rails. Conceptually, this is the equivalent of combining the electrostatic problem of a sparkplug with the electrodynamic one of a railgun. Two power supply options that do this are outlined, as well as details of railplug geometries. Successes to date have demonstrated the firing of plugs for over 10{sup 4} shots at delivered arc energies of 1 J per shot. Rep rates have been demonstrated up to 50 Hz.

Faidley, R.W.; Darden, M.H.; Weldon, W.F.

1995-01-01T23:59:59.000Z

89

Developing an approach utilizing local deterministic analysis to predict the cycle friction of the piston ring-pack in internal combustion engines  

E-Print Network (OSTI)

Nowadays, a rapid growth of internal combustion (IC) engines is considered to be a major contributor to energy crisis. About 20% of the mechanical loss in internal combustion engines directly goes to the friction loss ...

Liu, Yang, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

90

Wavelet Analysis of Cycle-to-Cycle Pressure Variations in an Internal Combustion Engine  

E-Print Network (OSTI)

Using a continuous wavelet transform we have analyzed the cycle-to-cycle variations of pressure in an internal combustion engine. The time series of maximum pressure variations are examined for different loading and their wavelet power spectrum is calculated for each load. From the wavelet power spectrum we detected the presence of long, intermediate and short-term periodicities in the pressure signal. It is found that depending on the load, the long and intermediate-term periodicities may span several cycles, whereas the short-period oscillations tend to appear intermittently. Knowledge of these periodicities may be useful to develop effective control strategies for efficient combustion.

Asok K. Sen; Grzegorz Litak; Rodolfo Taccani; Robert Radu

2006-07-19T23:59:59.000Z

91

The effects of spark ignition parameters on the lean burn limit of natural gas combustion in an internal combustion engine  

E-Print Network (OSTI)

A full factorial experiment was conducted to determine the effects of internal combustion engine ignition parameters on the air-fuel ratio (A/F) lean limit of combustion with compressed natural gas (CNG). Spark electrical characteristics (voltage, current, power, energy and duration), electrode design, electrode gap and compression ratio were the control variables and A/F lean limit, fuel consumption and hydrocarbon and oxides of nitrogen emission concentrations were the response variables. Experiments were performed on a General Motors' 2.2 liter four cylinder engine. Spark electrical characteristics were varied by applying various primary voltages and secondary resistances to the production inductive ignition system, with the engine operating at two operating conditions, a light load and a road load, and with two compression ratios. Cylinder pressure data was acquired to quantify load and combustion stability. Spark electrical characteristics were acquired with a digital oscilloscope to quantify secondary spark electrical characteristics. The results indicated that the response variables were generally insensitive to all the control variables, except for compression ratio. However, contrary to the literature, the A/F lean limit and fuel efficiency degraded with a higher compression ratio. Single and multi-variant linear regressions were studied between the A/F lean limit and the spark electrical characteristics. The only statistically significant and notable finding was a multi-variant linear regression of the A/F lean limit to increasing spark duration and decreasing spark energy at the road load operating condition. Statistical significance of the effect of the ignition system control variables on the response variables was higher at the road load than the light load operating condition. Emissions responded as expected with the higher compression ratio.

Chlubiski, Vincent Daniel

1997-01-01T23:59:59.000Z

92

Method and apparatus for minimizing the fuel usage in an internal combustion engine  

SciTech Connect

An apparatus and method is disclosed for minimizing the fuel usage in an internal combustion engine. The subject invention is particularly adapted for use with an engine installation subject to varying loads and which includes a governor for varying fuel flow as a function of load. In operation, the combustibles in the exhaust gas of the engine is continuously monitored. The measured level of combustibles is then compared with a predetermined level corresponding to optimum efficiency. A controller is provided for varying the air/fuel ratio supplied to the engine for maximizing efficiency in correspondence with the preset level. By this arrangement, energy output is increased permitting the governor to further reduce fuel flow, thereby minimizing energy costs.

Smojven, R.R.

1984-09-18T23:59:59.000Z

93

Proceedings of the sixth international conference on fluidized bed combustion. Volume II. Technical sessions  

SciTech Connect

The Sixth International Conference on Fluidized Bed Combustion was held April 9-11, 1980, at the Atlanta Hilton, Atlanta, Georgia. It was sponsored by the US Department of Energy, the Electric Power Research Institute, the US Environmental Protection Agency, and the Tennessee Valley Authority. The papers covered recent developments in atmospheric and pressurized fluidized-bed combustion, especially the design, operation and control of pilot and demonstration plants. The cleanup of combustion products and the erosion, corrosion and fouling of gas turbines was emphasized also. Fifty-five papers from Volume 2 of the proceedings have been entered individually into EDB and ERA; five papers had been entered previously from other sources. (LTN)

none,

1980-08-01T23:59:59.000Z

94

Ice  

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

Ice Ice Nature Bulletin No. 661-A january 7, 1978 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation ICE There was a time when ice, cut on frozen ponds and lakes, was transported by fast clipper ships from New England to New Orleans where it was worth its weight in gold. Nowadays this cold brittle colorless substance is commonplace everywhere. Few people, however, know that ice is one of the strangest of all solids; and that, because of its unique properties, life on earth is what it is. Those properties are due to the distinctive structure of a molecule of water, formed of three elemental particles or atoms -- two of hydrogen and one of oxygen -- expressed by the familiar symbol, H2O. The three atoms are held together by two chemical bonds expressed by another symbol, H-O-H. Briefly, the unique properties of water, water vapor, and ice arise from that bonding and the arrangement of electron pairs around the oxygen atom.

95

Method for reducing peak phase current and decreasing staring time for an internal combustion engine having an induction machine  

DOE Patents (OSTI)

A method for reducing the starting time and reducing the peak phase currents for an internal combustion engine that is started using an induction machine starter/alternator. The starting time is reduced by pre-fluxing the induction machine and the peak phase currents are reduced by reducing the flux current command after a predetermined period of time has elapsed and concurrent to the application of the torque current command. The method of the present invention also provides a strategy for anticipating the start command for an internal combustion engine and determines a start strategy based on the start command and the operating state of the internal combustion engine.

Amey, David L. (Birmingham, MI); Degner, Michael W. (Farmington Hills, MI)

2002-01-01T23:59:59.000Z

96

Internal combustion engine with rotary valve assembly having variable intake valve timing  

DOE Patents (OSTI)

An internal combustion engine has rotary valves associated with movable shutters operable to vary the closing of intake air/fuel port sections to obtain peak volumetric efficiency over the entire range of speed of the engine. The shutters are moved automatically by a control mechanism that is responsive to the RPM of the engine. A foot-operated lever associated with the control mechanism is also used to move the shutters between their open and closed positions.

Hansen, Craig N. (Eden Prairie, MN); Cross, Paul C. (Shorewood, MN)

1995-01-01T23:59:59.000Z

97

Proceedings of the Sixth International Conference on Fluidized Bed Combustion. Volume 1. Plenary sessions  

Science Conference Proceedings (OSTI)

The Sixth International Conference on Fluidized Bed Combustion was held at the Atlanta Hilton, Atlanta, Georgia, April 9-11, 1980. The papers in this volume involved presentation of the research and development programs of the US (US DOE, TVA, EPRI and US EPA), United Kingdom, Federal Republic of Germany and the People's Republic of China. Eight papers from Vol. 1 (Plenary Sessions) of the proceedings have been entered individually into EDB and ERA. (LTN)

none,

1980-08-01T23:59:59.000Z

98

Modeling engine oil vaporization and transport of the oil vapor in the piston ring pack on internal combustion engines  

E-Print Network (OSTI)

A model was developed to study engine oil vaporization and oil vapor transport in the piston ring pack of internal combustion engines. With the assumption that the multi-grade oil can be modeled as a compound of several ...

Cho, Yeunwoo, 1973-

2004-01-01T23:59:59.000Z

99

A comparison between direct spark ignition and prechamber ignition in an internal combustion engine  

DOE Green Energy (OSTI)

We simulated the flow field and flame propagation near top dead center in a generic large-bore internal combustion engine using the COYOTE computer program, which is based on the full Navier-Stokes equations for a fluid mixture. The combustion chamber is a right circular cylinder, and the main charge is uniformly premixed. The calculations are axisymmetric. The results illustrate the differences in flow patterns, flame propagation, and thermal NO production between ignition with a spark plug and with a small prechamber. In the spark-ignited case, the flame propagates away from the spark plug approximately as a segment of a spherical surface, just as expected. With the prechamber, a high speed jet of hot combustion products shoots into the main chamber, quickly producing a large flame sheet that spreads along the piston face. The prechamber run consumes all of the fuel in half the time required by the spark-ignited case. The two cases produce comparable amounts of thermal NO at the end of fuel combustion.

Cloutman, L.D.

1993-12-03T23:59:59.000Z

100

Anvil Characteristics as Seen by C-POL during the Tropical Warm Pool International Cloud Experiment (TWP-ICE)  

Science Conference Proceedings (OSTI)

The Tropical Pacific Warm Pool International Cloud Experiment (TWP-ICE) took place in Darwin, Australia, in early 2006. C-band radar data were used to characterize tropical anvil (i.e., thick, nonprecipitating cloud associated with deep ...

Kaycee Frederick; Courtney Schumacher

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Apparatus and method for operating internal combustion engines from variable mixtures of gaseous fuels  

DOE Patents (OSTI)

An apparatus and method for utilizing any arbitrary mixture ratio of multiple fuel gases having differing combustion characteristics, such as natural gas and hydrogen gas, within an internal combustion engine. The gaseous fuel composition ratio is first sensed, such as by thermal conductivity, infrared signature, sound propagation speed, or equivalent mixture differentiation mechanisms and combinations thereof which are utilized as input(s) to a "multiple map" engine control module which modulates selected operating parameters of the engine, such as fuel injection and ignition timing, in response to the proportions of fuel gases available so that the engine operates correctly and at high efficiency irrespective of the gas mixture ratio being utilized. As a result, an engine configured according to the teachings of the present invention may be fueled from at least two different fuel sources without admixing constraints.

Heffel, James W. (Lake Matthews, CA); Scott, Paul B. (Northridge, CA); Park, Chan Seung (Yorba Linda, CA)

2011-11-01T23:59:59.000Z

102

The IceCube Collaboration:contributions to the 30 th International Cosmic Ray Conference (ICRC 2007),  

SciTech Connect

This paper bundles 40 contributions by the IceCube collaboration that were submitted to the 30th International Cosmic Ray Conference ICRC 2007. The articles cover studies on cosmic rays and atmospheric neutrinos, searches for non-localized, extraterrestrial {nu}{sub e}, {nu}{sub {mu}} and {nu}{sub {tau}} signals, scans for steady and intermittent neutrino point sources, searches for dark matter candidates, magnetic monopoles and other exotic particles, improvements in analysis techniques, as well as future detector extensions. The IceCube observatory will be finalized in 2011 to form a cubic-kilometer ice-Cherenkov detector at the location of the geographic South Pole. At the present state of construction, IceCube consists of 52 paired IceTop surface tanks and 22 IceCube strings with a total of 1426 Digital Optical Modules deployed at depths up to 2350 m. The observatory also integrates the 19 string AMANDA subdetector, that was completed in 2000 and extends IceCube's reach to lower energies. Before the deployment of IceTop, cosmic air showers were registered with the 30 station SPASE-2 surface array. IceCube's low noise Digital Optical Modules are very reliable, show a uniform response and record waveforms of arriving photons that are resolvable with nanosecond precision over a large dynamic range. Data acquisition, reconstruction and simulation software are running in production mode and the analyses, profiting from the improved data quality and increased overall sensitivity, are well under way.

IceCube Collaboration; Ackermann, M.

2007-11-02T23:59:59.000Z

103

Economics of electron beam and electrical discharge processing for post-combustion NO{sub x} control in internal combustion engines  

DOE Green Energy (OSTI)

This paper discusses the physics and chemistry of non-thermal plasma processing for post-combustion NO{sub x} control in internal combustion engines. A comparison of electron beam and electrical discharge processing is made regarding their power consumption, radical production, NO{sub x} removal mechanisms, and by-product formation. Pollution control applications present a good opportunity for transferring pulsed power techniques to the commercial sector. However, unless advances are made to drastically reduce the price and power consumption of electron beam sources and pulsed power systems, these plasma techniques will not become commercially competitive with conventional thermal or surface-catalytic methods.

Penetrante, B.M.

1993-08-02T23:59:59.000Z

104

The railplug: Development of a new ignitor for internal combustion engines. Final report  

DOE Green Energy (OSTI)

A three year investigation of a new type of ignitor for internal combustion engines has been performed using funds from the Advanced Energy Projects Program of The Basic Energy Sciences Division of the U.S. Department of Energy and with matching funding from Research Applications, Inc. This project was a spin-off of {open_quotes}Star Wars{close_quotes} defense technology, specifically the railgun. The {open_quotes}railplug{close_quotes} is a miniaturized railgun which produces a high velocity plume of plasma that is injected into the combustion chamber of an engine. Unlike other types of alternative ignitors, such as plasma jet ignitors, electromagnetic forces enhance the acceleration of the plasma generated by a railplug. Thus, for a railplug, the combined effects of electromagnetic and thermodynamic forces drive the plasma into the combustion chamber. Several engine operating conditions or configurations can be identified that traditionally present ignition problems, and might benefit from enhanced ignition systems. One of these is ultra-lean combustion in spark ignition (SI) engines. This concept has the potential for lowering emissions of NOx while simultaneously improving thermal efficiency. Unfortunately, current lean burn engines cannot be operated sufficiently lean before ignition related problems are encountered to offer any benefits. High EGR engines have similar potential for emissions improvement, but also experience similar ignition problems, particularly at idle. Other potential applications include diesel cold start, alcohol and dual fuel engines, and high altitude relight of gas turbines. The railplug may find application for any of the above. This project focused on three of these potential applications: lean burn SI engines, high EGR SI engines, and diesel cold start.

Matthews, R.D.; Nichols, S.P.; Weldon, W.F.

1994-11-29T23:59:59.000Z

105

Apparatus for controlling the air-fuel ratio in an internal combustion engine  

Science Conference Proceedings (OSTI)

Apparatus for controlling the air-fuel ratio in an internal combustion engine to substantially maintain the ratio at a predetermined value while the engine is operating under various load conditions. The engine has a carburetor with an air passageway through which air is drawn into the engine. Fuel is supplied to the carburetor through a fuel system and mixed with air passing through the carburetor. The presence of oxygen in the combustion products, which is a function of the air-fuel ratio of the mixture, is sensed and a first electrical signal representative of the oxygen content is supplied. The first electrical signal is compared with a predetermined reference level which is a function of the predetermined value to produce a second electrical signal having first and second signal elements, a first signal element being produced when the air-fuel ratio of the mixture is greater than the predetermined level and a second signal element being produced when the ratio is less than the level. A control responsive to the second electrical signal supplies to an air metering unit a control signal by which the quantity of air introduced into the fuel system is controlled. A change in the control signal is produced whenever the second electrical signal has a transition from one signal element to the other thereby for the air metering unit to change the quantity of air introduced into the fuel system conduit by an amount necessary to substantially maintain the air-fuel ratio at the predetermined value.

Gantzert, T.R.; Hicks, D.L.; Lindberg, A.W.

1981-07-21T23:59:59.000Z

106

Alternative Fuel Pilot Plant & Hydrogen Internal Combustion Engine Vehicle Testing  

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

RESEARCH & DEVELOPMENT RESEARCH & DEVELOPMENT Science Arizona Public Service Alternative Fuel Pilot Plant & Hydrogen Internal Combustion Engine Vehicle Testing Alternative Fuel Pilot Plant The Arizona Public Service Alternative Fuel Pilot Plant is a model alternative fuel refueling system, dispensing hydrogen, compressed natural gas (CNG), and hydrogen/ CNG blends (HCNG). The plant is used daily to fuel vehicles operated in Arizona Public Service's fleet. Hydrogen Subsystem The plant's hydrogen system consists of production, compression, storage, and dispensing. The hydrogen produced is suitable for use in fuel cell-powered vehicles, for which the minimum hydrogen purity goal is 99.999%. Hydrogen is produced using an electrolysis process that separates water into hydrogen and oxygen. At present, the hydrogen is

107

Analysis on driving forces of oil pumps for internal combustion engines  

Science Conference Proceedings (OSTI)

Measures to reduce friction losses for internal combustion engines have been promoted as a means to meet the recent socioeconomical demand for energy saving. This paper describes a unique study on oil pump driving forces as a part of such efforts. In this study, oil pump driving forces are divided into (1) pumping work, (2) gear intermeshing loss, (3) resistance by the viscosity of lubricating oil, (4) mechanical loss and (5) bearing friction loss. Individual driving forces have been analyzed by respective theories, which are synthesized into a theoretical equation. The comparison between the theoretically calculated values and measured values obtained by the tests has revealed that they are in good agreement, as being described in the text of the paper.

Baba, Y.; Hoshi, M.

1986-01-01T23:59:59.000Z

108

Hydrogen Station & ICE Vehicle Operations and Testing  

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

Hydrogen Station & ICE Vehicle Operations and Testing Jim Francfort for Lee Slezak WestStart CALSTART Hydrogen Internal Combustion Engine Symposium - February 2006 INL/CON-06-01109 Presentation Outline * Background and Goal * Arizona Public Service (APS) Alternative Fuel (Hydrogen) Pilot Plant - design and operations * Fuel Dispensing * Prototype Dispenser Testing * Hydrogen and HCNG Internal Combustion Engine (ICE) Vehicle Testing Activities * WWW Information AVTA Background and Goal * AVTA is part of the U.S. Department of Energy's FreedomCAR and Vehicle Technologies Program * These activities are conducted by the Idaho National Laboratory (INL) and the AVTA testing partner Electric Transportation Applications * AVTA Goal - Provide benchmark data for technology

109

ICES Training programme The International Council for the Exploration of the Sea (ICES) offers courses led by high-profile scientists and  

E-Print Network (OSTI)

: +45 3338 6700 Fax: +45 3393 4215 info@ices.dk You can find more information about: ICES HQ here Hotels tuition fee. Organization The course is organized by the ICES Secretariat as part of the ICES Training

110

Fundamental limitations of non-thermal plasma processing for internal combustion engine NO{sub x} control  

DOE Green Energy (OSTI)

This paper discusses the physics and chemistry of non-thermal plasma processing for post-combustion NO{sub x} control in internal combustion engines. A comparison of electron beam and electrical discharge processing is made regarding their power consumption, radical production, NO{sub x} removal mechanisms, and by product formation. Can non-thermal deNO{sub x} operate efficiently without additives or catalysts? How much electrical power does it cost to operate? What are the by-products of the process? This paper addresses these fundamental issues based on an analysis of the electron-molecule processes and chemical kinetics.

Penetrante, B.M.

1993-08-19T23:59:59.000Z

111

Evaluation and silicon nitride internal combustion engine components. Final report, Phase I  

DOE Green Energy (OSTI)

The feasibility of silicon nitride (Si{sub 3}N{sub 4}) use in internal combustion engines was studied by testing three different components for wear resistance and lower reciprocating mass. The information obtained from these preliminary spin rig and engine tests indicates several design changes are necessary to survive high-stress engine applications. The three silicon nitride components tested were valve spring retainers, tappet rollers, and fuel pump push rod ends. Garrett Ceramic Components` gas-pressure sinterable Si{sub 3}N{sub 4} (GS-44) was used to fabricate the above components. Components were final machined from densified blanks that had been green formed by isostatic pressing of GS-44 granules. Spin rig testing of the valve spring retainers indicated that these Si{sub 3}N{sub 4} components could survive at high RPM levels (9,500) when teamed with silicon nitride valves and lower spring tension than standard titanium components. Silicon nitride tappet rollers showed no wear on roller O.D. or I.D. surfaces, steel axles and lifters; however, due to the uncrowned design of these particular rollers the cam lobes indicated wear after spin rig testing. Fuel pump push rod ends were successful at reducing wear on the cam lobe and rod end when tested on spin rigs and in real-world race applications.

Voldrich, W. [Allied-Signal Aerospace Co., Torrance, CA (United States). Garrett Ceramic Components Div.

1992-04-01T23:59:59.000Z

112

Mixture of micronized coal powder with gaseous fuels for use in internal combustion engines  

DOE Patents (OSTI)

An improved fuel mixture for use in internal combustion engines is described. This fuel is an intimate mixture of micronized coal, having an average particle size of less than 100 microns, with a gaseous fuel selected from natural gas and coal-derived. The coal can be present from more than 0 percent to less than 100 percent, with generally the lower percentages being preferred. The addition of the coal to the gaseous fuel improves engine efficiency and power rating, and also decreases peak engine pressure allowing for higher compression ratios. An increase in the amount of the coal increases the oxides of sulfur while reducing the oxides of nitrogen in the exhaust. An increase in the amount of gas, on the other hand, increases the oxides of nitrogen but lowers oxides of sulfur. Accordingly, a preferred mixture will depend upon a particular application for the coal/gas fuel and thereby increases user fuel flexibility considerations. Modeling of the fuel mixture for use in a diesel engine is described. 3 figs., 3 tabs.

Carpenter, L.K.

1990-01-03T23:59:59.000Z

113

Anvil characteristics as seen by C-POL during the Tropical Warm Pool International Cloud Experiment (TWP-ICE)  

E-Print Network (OSTI)

The Tropical Pacific Warm Pool International Cloud Experiment (TWP-ICE) took place in Darwin, Australia in early 2006. C-band radar data from this experiment were used to characterize tropical anvil areal coverage, height, and thickness during the month-long field campaign. The morphology, evolution, and longevity of the anvil were analyzed as well as the relationship of the anvil to the rest of the precipitating system. In addition, idealized in-cloud radiative heating profiles were created based on the anvil observations. The anvil was separated into mixed (i.e., echo base below 6 km) and ice only categories. The experiment areal average coverage for both types of anvil was between 4-5% of the radar grid. Ice anvil thickness averaged 2.8 km and mixed anvil thickness averaged 6.7 km. No consistent diurnal signal was seen in the anvil, implying that the life cycle of the parent convection was of first order importance in determining the anvil height, thickness, and area. Areal peaks show that mixed anvil typically formed out of the stratiform region. Peak production in ice anvil usually followed the mixed anvil peak by 1-3 hr. Anvil typically lasted 4-10 hr after the initial convective rain area peak. The TWP-ICE experienced three distinct regimes: the active monsoon, dry monsoon, and break periods. During the entire experiment (except the active monsoon period) there was a strong negative correlation between ice anvil thickness and ice anvil height, a strong positive correlation between ice anvil area and thickness, and a greater variance in ice anvil bottom than ice anvil top. Anvil produced during the active regime had the most dramatic in-cloud radiative response with a maximum cooling of 0.45�° K day-1 at 12 km, a maximum heating of 3�° K day-1 at 9 km, and a secondary maximum heating of 1.2�° K day-1 at 5 km.

Frederick, Kaycee Loretta

2006-12-01T23:59:59.000Z

114

Modeling the performance of the piston ring-pack with consideration of non-axisymmetric characteristics of the power cylinder system in internal combustion engines  

E-Print Network (OSTI)

The performance of the piston ring-pack is directly associated with the friction, oil consumption, wear, and blow-by in internal combustion engines. Because of non-axisymmetric characteristics of the power cylinder system, ...

Liu, Liang, 1971-

2005-01-01T23:59:59.000Z

115

COMBUSTION-GENERATED INDOOR AIR POLLUTION  

E-Print Network (OSTI)

Pollutants from Indoor Combustion Sources: I. Field Measure-Characteristics in Two Stage Combustion, paper presented atInternational) on Combustion, August, 1974, Tokyo, Japan. 8

Hollowell, C.D.

2011-01-01T23:59:59.000Z

116

Using Biofuel Tracers to Study Alternative Combustion Regimes  

E-Print Network (OSTI)

1979. J.B. Heywood, Internal Combustion Engine Fundamentals.Ignition Engine with Optimal Combustion Control. ” US PatentIntroduction to Internal Combustion Engines (3rd Edition).

Mack, John Hunter; Flowers, Daniel L.; Buchholz, Bruce A.; Dibble, Robert W.

2006-01-01T23:59:59.000Z

117

FNS Presentation - Hydrogen Station & Hydrogen ICE Vehicles Operation  

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

Hydrogen Station & Hydrogen ICE Hydrogen Station & Hydrogen ICE Vehicle Operations Federal Network for Sustainability Idaho Falls, Idaho - July 2006 Jim Francfort INL/CON-06-11569 Presentation Outline * Background & Goal * Arizona Public Service (APS) Alternative Fuel (Hydrogen) Pilot Plant - design & operations * Fuel Dispensing * Hydrogen & HCNG Internal Combustion Engine (ICE) Vehicle Testing Activities * Briefly, other AVTA Activities * WWW Information 2 AVTA Background & Goal * Advanced Vehicle Testing Activity (AVTA) is part of the U.S. Department of Energy's (DOE) FreedomCAR and Vehicle Technologies Program * These activities are conducted by the Idaho National Laboratory (INL) & the AVTA testing partner Electric Transportation Applications (ETA) * AVTA Goal - Provide benchmark data for technology

118

Japanese industrial research on lean combustion: A case study: International Research Monitoring Program  

DOE Green Energy (OSTI)

In recent years, Japanese automakers have introduced a number of successful lean-combustion engines. These engines, in addition to the general expertise in building small cars, have made the Japanese automobiles into the gas mileage champions of the US market. The lean-combustion engines also provide very satisfactory performance and acceptable emissions. United States automakers and research managers, who were probably better informed about lean-combustion than the Japanese were, actively investigated lean-combustion but did not develop an engine. This report examines the basis for the Japanese innovations, the research that took the Japanese past the US state of the art to permit engine development. A preliminary review of recent (1980s) Japanese literature did not turn up strong evidence of new research activity in the lean-combustion area, but did provide background on new engines developed by several major manufacturers. The study was conducted solely through the Japanese and US published literature, with emphasis on early research conducted in the 1970s. This report presents an example of how Japanese research progress can be examined by reviewing the Japanese research literature. Although useful information was obtained by this method, it is still difficult to get a complete picture. When reviewing the literature, as was done for this report, one must remember that the marginal use of references by Japanese researchers obscures prior work, as does the tendency of the Japanese to publish several articles on similar or identical topics. 50 refs., 15 figs.

Hane, G.J.; Hutchinson, R.A.

1987-08-01T23:59:59.000Z

119

On the wall jet from the ring crevice of an internal combustion engine  

DOE Green Energy (OSTI)

Numerical simulations and experiments of the jetting of gases from the ring crevices of a laboratory engine shortly after exhaust valve opening showed an unanticipated radial flow of the crevice gases into the main combustion chamber. We report well-resolved numerical simulations of a wall jet that show that this radial motion is driven by vorticity generation in the wall boundary layer and at the corner of the piston crown.

Cloutman, L.D. [Lawrence Livermore National Lab., CA (United States); Green, R.M. [Sandia National Labs., Livermore, CA (United States)

1996-05-01T23:59:59.000Z

120

Method and apparatus utilizing valve throttling and charge stratification in the operation of an internal combustion engine  

Science Conference Proceedings (OSTI)

In an internal combustion engine this patent describes means forming a combustion chamber, a spark plug in the chamber, a piston disposed in the chamber for reciprocable movement toward and away from the spark plug, a valve member, circular seat means for the valve member, means for varying the lift of the valve member, a generally cylindrical shroud corresponding generally to the size of the seat means. The cylindrical shroud is relieved only in the direction of the spark plug so that, when the valve member is moved relative to the shroud by the lift-varying means, a stratified mixture of air and fuel is directed toward the spark plug until the lift-varying means causes the valve member to pass beyond the shroud so that during the initial lift of the valve member the stratified air and fuel mixture is directed solely toward the spark plug until the valve member passes beyond the shroud and the air and fuel mixture is directed generally through a 360/sup 0/ arc after the valve member passes beyond the shroud, and means limiting the lift of the valve member so that it does not pass the shroud during lighter loads, whereby the air and fuel mixture is directed primarily toward the spark plug until the valve member passes beyond the shroud.

Burandt, C.O.

1988-02-16T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Studying the Internal Ballistics of a Combustion Driven Potato Cannon using High-speed Video  

E-Print Network (OSTI)

A potato cannon was designed to accommodate several different experimental propellants and have a transparent barrel so the movement of the projectile could be recorded on high-speed video (at 2000 frames per second). Both combustion chamber and barrel were made of polyvinyl chloride (PVC). Five experimental propellants were tested: propane (C3H8), acetylene (C2H2), ethanol (C2H6O), methanol (CH4O), and butane (C4H10). The amount of each experimental propellant was calculated to approximate a stoichometric mixture and considering the Upper Flammability Limit (UFL) and the Lower Flammability Limit (LFL), which in turn were affected by the volume of the combustion chamber. Cylindrical projectiles were cut from raw potatoes so that there was an airtight fit, and each weighed 50 (+/- 0.5) grams. For each trial, position as a function of time was determined via frame by frame analysis. Five trials were taken for each experimental propellant and the results analyzed to compute velocity and acceleration as functions...

Courtney, E D S

2013-01-01T23:59:59.000Z

122

Hydrogen ICE Vehicle Testing Activities  

DOE Green Energy (OSTI)

The Advanced Vehicle Testing Activity teamed with Electric Transportation Applications and Arizona Public Service to develop and monitor the operations of the APS Alternative Fuel (Hydrogen) Pilot Plant. The Pilot Plant provides 100% hydrogen, and hydrogen and compressed natural gas (H/CNG)-blended fuels for the evaluation of hydrogen and H/CNG internal combustion engine (ICE) vehicles in controlled and fleet testing environments. Since June 2002, twenty hydrogen and H/CNG vehicles have accumulated 300,000 test miles and 5,700 fueling events. The AVTA is part of the Department of Energy’s FreedomCAR and Vehicle Technologies Program. These testing activities are managed by the Idaho National Laboratory. This paper discusses the Pilot Plant design and monitoring, and hydrogen ICE vehicle testing methods and results.

J. Francfort; D. Karner

2006-04-01T23:59:59.000Z

123

A retrospective survey of the use of laboratory tests to simulate internal combustion engine materials tribology problems  

DOE Green Energy (OSTI)

Progress in the Field of tribology strongly parallels, and has always been strongly driven by, developments and needs in transportation and related industries. Testing of candidate materials for internal combustion engine applications has historically taken several routes: (1) replacement of parts in actual engines subjected to daily use, (2) testing in special, instrumented test engines, (3) and simulative testing in laboratory tribometers using relatively simple specimens. The advantages and disadvantages of each approach are reviewed using historical examples. A four-decade, retrospective survey of the tribomaterials literature focused on the effectiveness of laboratory simulations for engine materials screening. Guidelines for designing and ducting successful tribology laboratory simulations will be discussed. These concepts were used to design a valve wear simulator at Oak Ridge National Laboratory.

Blau, P.J.

1992-12-31T23:59:59.000Z

124

A research plan to study emissions from small internal combustion engines. Final report Sep 78-Sep 79  

SciTech Connect

The report examines some of the requirements for investigating the environmental status of small internal combustion (IC) engines. These engines range in size from 1.5 to 15 hp and power a variety of equipment operated by homeowners and industry. With EPA's general growing concern of identifying sources of potentially carcinogenic emissions, a possibility exists that these small IC engines are a problem source. Research to characterize emissions from IC engines has largely been limited to critical pollutants, even though the small IC engine is an incomplete combustor. It follows that some carcinogens and other hazardous compounds are probable. The basic requirements addressed in the report include analytical equipment, experimental systems design, and statistical experimental design.

Murrell, J.W.

1980-04-01T23:59:59.000Z

125

Investigation of spark discharge processes and ignition systems for spark-ignited internal combustion engines  

E-Print Network (OSTI)

Spark ignition of the air-fuel mixture at the appropriate time is important for successful flame initiation and complete combustion thereafter without unnecessary emissions. The physical and chemical reactions taking place between the spark plug electrodes during spark delivery determine the intensity of the spark and subsequent flame initiation. The energy of spark and the duration of its delivery are dependent on the ignition system design. The characteristics of the spark plug determine the interaction of the spark with the air-fuel mixture. The compression pressure, combustion chamber temperature and mixture motion at the time of spark generation play a significant role in the flame initiation process. All of these parameters are responsible for the resulting spark discharge and flame initiation process. The objectives of this research include investigation of the different phases of spark discharge and development of a thermodynamic analysis to determine the rate of change of the spark kernel temperature with time during the initial phases of the spark discharge. The effect of spark energy delivery rate, heat transfer losses and mass entrainment on the spark kernel temperature was determined through the thermodynamic analysis. This research also includes an evaluation of the various types of conventional as well as high-energy ignition systems for lean burn engines. An experimental ignition system was constructed to determine the effect of ignition energy, spark plug electrode geometry and gas pressure on the characteristics of the spark discharge. Images of spark discharge were captured through photography using three different types of electrode geometries and also by varying the pressure and by changing the ignition energy using different condensers in the ignition system. Finally, the results of the thermodynamic analysis were compared with the results from the experiment.

Khare, Yogesh Jayant

2000-01-01T23:59:59.000Z

126

Proceedings: 15th International American Coal Ash Association Symposium on Management and Use of Coal Combustion Products (CCPs): Bu ilding Partnerships for Sustainability  

Science Conference Proceedings (OSTI)

The theme of the symposium is "building partnerships for sustainability." Topics discussed at the 15th International Symposium on Management and Use of CCPs included fundamental coal combustion product (CCP) use research, product marketing, applied research, CCP management and environmental issues, and commercial uses. There is a continuing international research interest in CCP use because of the prospects of avoiding disposal costs, reducing greenhouse gas emissions, and generating revenue from CCP sales.

2003-04-28T23:59:59.000Z

127

Proceedings: 15th International American Coal Ash Association Symposium on Management and Use of Coal Combustion Products (CCPs): Bu ilding Partnerships for Sustainability  

Science Conference Proceedings (OSTI)

Topics discussed at the 15th International American Coal Ash Association (ACAA) Symposium, "Management and Use of Coal Combustion Products (CCPs)," included fundamental CCP use, research, product marketing, applied research, CCP management and environmental issues, and commercial uses. There is a continuing international research interest in CCP use because of its commercial value and its environmental benefits, such as reducing greenhouse gas emissions, reducing landfill needs, and utilizing recycled ma...

2003-01-02T23:59:59.000Z

128

COMBUSTION OF COAL IN AN OPPOSED FLOW DIFFUSION BURNER  

E-Print Network (OSTI)

J.M. , liThe F1uidised Combustion of Coal," Sixteenth Sm osium {International} on Combustion, August 1976 (to beof Various Polymers Under Combustion Conditions," Fourteenth

Chin, W.K.

2010-01-01T23:59:59.000Z

129

Internal variability in projections of twenty-first century Arctic sea ice loss: Role of the large-scale atmospheric circulation  

Science Conference Proceedings (OSTI)

Internal variability in twenty-first century summer Arctic sea ice loss and its relationship to the large-scale atmospheric circulation is investigated in a 39-member Community Climate System Model version 3 (CCSM3) ensemble for the period 2000–...

Justin J. Wettstein; Clara Deser

130

INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'07 28 -31 AUGUST 2007, CITE DES SCIENCES ET DE L'INDUSTRIE, PARIS, FRANCE  

E-Print Network (OSTI)

and the solution evolve parallel. Then, we explain that the complexity of the medical devices needs specificINTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'07 28 - 31 AUGUST 2007, CITE DES SCIENCES ET, there is such a difficulty of medical terms routinely employed by the surgeon to explain his need, which causes to reduction

Paris-Sud XI, Université de

131

Investigation of a rotary valving system with variable valve timing for internal combustion engines: Final technical report  

DOE Green Energy (OSTI)

The objective of the program was to provide a functional demonstration of the Hansen Rotary Valving System with Variable Valve timing (HRVS/VVT), capable of throttleless inlet charge control, as an alternative to conventional poppet-valves for use in spark ignited internal combustion engines. The goal of this new technology is to secure benefits in fuel economy, broadened torque band, vibration reduction, and overhaul accessibility. Additionally, use of the variable valve timing capability to vary the effective compression ratio is expected to improve multi-fuel tolerance and efficiency. Efforts directed at the design of HRVS components proved to be far more extensive than had been anticipated, ultimately requiring that proof-trial design/development work be performed. Although both time and funds were exhausted before optical or ion-probe types of in-cylinder investigation could be undertaken, a great deal of laboratory data was acquired during the course of the design/development work. This laboratory data is the basis for the information presented in this Final Report.

Cross, P.C.; Hansen, C.N.

1994-11-18T23:59:59.000Z

132

COMBUSTION-GENERATED INDOOR AIR POLLUTION  

E-Print Network (OSTI)

x A Emission Characteristics in Two Stage Combustion. PaperInternational) on Combustion, Tokyo (August, 1974). Chang,fll , J I ___F J "J LBL-S9lS COMBUSTION-GENERATED INDOOR AIR

Hollowell, C.D.

2010-01-01T23:59:59.000Z

133

Rheology of Discrete Failure Regimes of Anisotropic Sea Ice  

Science Conference Proceedings (OSTI)

A rheological model of sea ice is presented that incorporates the orientational distribution of ice thickness in leads embedded in isotropic floe ice. Sea ice internal stress is determined by coulombic, ridging and tensile failure at orientations ...

Alexander V. Wilchinsky; Daniel L. Feltham

2012-07-01T23:59:59.000Z

134

Combustibles Alternativos  

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

Combustibles Alternativos Dispensador de Combustible Alternativo Los combustibles alternativos estn derivados de otras fuentes adems del petrleo. Unos son producidos en el...

135

Definition: Combustion | Open Energy Information  

Open Energy Info (EERE)

Combustion Combustion Jump to: navigation, search Dictionary.png Combustion The process of burning; chemical oxidation accompanied by the generation of light and heat.[1][2] View on Wikipedia Wikipedia Definition "Burning" redirects here. For combustion without external ignition, see spontaneous combustion. For the vehicle engine, see internal combustion engine. For other uses, see Burning (disambiguation) and Combustion (disambiguation). Error creating thumbnail: Unable to create destination directory This article's introduction section may not adequately summarize its contents. To comply with Wikipedia's lead section guidelines, please consider modifying the lead to provide an accessible overview of the article's key points in such a way that it can stand on its own as a

136

Performance, Efficiency, and Emissions Characterization of Reciprocating Internal Combustion Engines Fueled with Hydrogen/Natural Gas Blends  

Science Conference Proceedings (OSTI)

Hydrogen is an attractive fuel source not only because it is abundant and renewable but also because it produces almost zero regulated emissions. Internal combustion engines fueled by compressed natural gas (CNG) are operated throughout a variety of industries in a number of mobile and stationary applications. While CNG engines offer many advantages over conventional gasoline and diesel combustion engines, CNG engine performance can be substantially improved in the lean operating region. Lean operation has a number of benefits, the most notable of which is reduced emissions. However, the extremely low flame propagation velocities of CNG greatly restrict the lean operating limits of CNG engines. Hydrogen, however, has a high flame speed and a wide operating limit that extends into the lean region. The addition of hydrogen to a CNG engine makes it a viable and economical method to significantly extend the lean operating limit and thereby improve performance and reduce emissions. Drawbacks of hydrogen as a fuel source, however, include lower power density due to a lower heating value per unit volume as compared to CNG, and susceptibility to pre-ignition and engine knock due to wide flammability limits and low minimum ignition energy. Combining hydrogen with CNG, however, overcomes the drawbacks inherent in each fuel type. Objectives of the current study were to evaluate the feasibility of using blends of hydrogen and natural gas as a fuel for conventional natural gas engines. The experiment and data analysis included evaluation of engine performance, efficiency, and emissions along with detailed in-cylinder measurements of key physical parameters. This provided a detailed knowledge base of the impact of using hydrogen/natural gas blends. A four-stroke, 4.2 L, V-6 naturally aspirated natural gas engine coupled to an eddy current dynamometer was used to measure the impact of hydrogen/natural gas blends on performance, thermodynamic efficiency and exhaust gas emissions in a reciprocating four stroke cycle engine. The test matrix varied engine load and air-to-fuel ratio at throttle openings of 50% and 100% at equivalence ratios of 1.00 and 0.90 for hydrogen percentages of 10%, 20% and 30% by volume. In addition, tests were performed at 100% throttle opening, with an equivalence ratio of 0.98 and a hydrogen blend of 20% to further investigate CO emission variations. Data analysis indicated that the use of hydrogen/natural gas fuel blend penalizes the engine operation with a 1.5 to 2.0% decrease in torque, but provided up to a 36% reduction in CO, a 30% reduction in NOX, and a 5% increase in brake thermal efficiency. These results concur with previous results published in the open literature. Further reduction in emissions can be obtained by retarding the ignition timing.

Kirby S. Chapman; Amar Patil

2007-06-30T23:59:59.000Z

137

The IceCube Collaboration:contributions to the 30 th International Cosmic Ray Conference (ICRC 2007),  

E-Print Network (OSTI)

total of 5 neutrino event triggers were initiated by AMANDA-in deep IceCube. Events that trigger both the surface arraya common run control, trigger- ing, event building and

Ackermann, M.; IceCube Collaboration

2008-01-01T23:59:59.000Z

138

Testing ice microphysics parameterizations in the NCAR Community Atmospheric Model Version 3 using Tropical Warm Pool–International Cloud Experiment data  

SciTech Connect

Cloud properties have been simulated with a new double-moment microphysics scheme under the framework of the single column version of NCAR CAM3. For comparisons, the same simulation was made with the standard single-moment microphysics scheme of CAM3. Results from both simulations were compared favorably with observations during the Tropical Warm Pool- International Cloud Experiment by US Department of Energy Atmospheric Radiation Program in terms of the temporal variation and vertical distribution of cloud fraction and cloud condensate. Major differences between the two simulations are in the magnitude and distribution of ice water content within the mixed-phase cloud during the monsoon period, though the total frozen water (snow plus ice) content is similar. The ice mass content in the mixed-phase cloud from the new scheme is larger than that from the standard scheme, and extends 2 km further downward, which are closer to observations. The dependence of the frozen water mass fraction in total condensate on temperature from the new scheme is also closer to available observations. Outgoing longwave radiation (OLR) at the top of the atmosphere (TOA) from the simulation with the new scheme is in general larger than that with the standard scheme, while the surface downward longwave radiation is similar. Sensitivity tests suggest that different treatments of the ice effective radius contribute significantly to the difference in the TOA OLR in addition to cloud water path. The deep convection process affects both TOA OLR and surface downward longwave radiation. The over-frequently-triggered deep convention process in the model is not the only mechanism for the excess middle and high level clouds. Further evaluation especially for ice cloud properties based on in-situ data is needed.

Wang, Weiguo; Liu, Xiaohong; Xie, Shaocheng; Boyle, James; McFarlane, Sally A.

2009-07-23T23:59:59.000Z

139

CATALYZED COMBUSTION IN A FLAT PLATE BOUNDARY LAYER I. EXPERIMENTAL MEASUREMENTS AND COMPARISON WITH NUMERICAL CALCULATIONS  

E-Print Network (OSTI)

l~ Roberts, "Catathermal Combustion: A New Process for Lm'l-significant gas phase combustion is induced by the presenceInternational) on Combustion (to be published), The

Robben, R.

2010-01-01T23:59:59.000Z

140

THE COMBUSTION OF SOLVENT REPINED COAL IN AN OPPOSED FLOW DIFFUSION FLAME  

E-Print Network (OSTI)

pyrolysis of various polymers under combustion conditions.Fourteenth Symposium (International) on Combustion,The Combustion Institute Pittsburgh, 1177. Chin, W.K. and

Chin, W.K.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

CATALYZED COMBUSTION IN A FLAT PLATE BOUNDARY LAYER II. NUMERICAL CALCULATIONS  

E-Print Network (OSTI)

D.G. , Fourteenth Sympo- sium (International) on Combustion,The Combustion Institute, Pittsburgh, 107 (1973). Wilson,Program for Calculation of Combustion Reaction Equilibrium

Schefer, R.

2010-01-01T23:59:59.000Z

142

Tropical Warm Pool International Cloud Experiment (TWP-ICE): Cloud and Rain Characteristics in the Australian Monsoon  

SciTech Connect

The impact of oceanic convection on its environment and the relationship between the characteristics of the convection and the resulting cirrus characteristics is still not understood. An intense airborne measurement campaign combined with an extensive network of ground-based observations is being planned for the region near Darwin, Northern Australia, during January-February, 2006, to address these questions. The Tropical Warm Pool – International Cloud Experiment (TWP-ICE) will be the first field program in the tropics that attempts to describe the evolution of tropical convection, including the large scale heat, moisture, and momentum budgets, while at the same time obtaining detailed observations of cloud properties and the impact of the clouds on the environment. The emphasis will be on cirrus for the cloud properties component of the experiment. Cirrus clouds are ubiquitous in the tropics and have a large impact on their environment but the properties of these clouds are poorly understood. A crucial product from this experiment will be a dataset suitable to provide the forcing and testing required by cloud-resolving models and parameterizations in global climate models. This dataset will provide the necessary link between cloud properties and the models that are attempting to simulate them. The experiment is a collaboration between the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program, the Bureau of Meteorology (BoM), the National Aeronautics and Space Administration (NASA), the European Commission DG RTD-1.2, and several United States, Australian, Canadian, and European Universities. This experiment will be undertaken over a 4-week period in early 2006. January and February corresponds to the wet phase of the Australia monsoon. This season has been selected because, despite Darwin’s coastal location, the convection that occurs over and near Darwin at this time is largely of maritime origin with a large fetch over water. Based on previous experiments, the convection appears typical of maritime convection with widespread convection that has complex organization, but is not as deep or as intense as continental or coastal convection. Therefore, it is expected that the convection and cloud characteristics will be representative of conditions typical for wide areas of the tropics.

PT May; C Jakob; JH Mather

2004-05-30T23:59:59.000Z

143

Arctic Sea ice model sensitivities.  

SciTech Connect

Arctic sea ice is an important component of the global climate system and, due to feedback effects, the Arctic ice cover is changing rapidly. Predictive mathematical models are of paramount importance for accurate estimates of the future ice trajectory. However, the sea ice components of Global Climate Models (GCMs) vary significantly in their prediction of the future state of Arctic sea ice and have generally underestimated the rate of decline in minimum sea ice extent seen over the past thirty years. One of the contributing factors to this variability is the sensitivity of the sea ice state to internal model parameters. A new sea ice model that holds some promise for improving sea ice predictions incorporates an anisotropic elastic-decohesive rheology and dynamics solved using the material-point method (MPM), which combines Lagrangian particles for advection with a background grid for gradient computations. We evaluate the variability of this MPM sea ice code and compare it with the Los Alamos National Laboratory CICE code for a single year simulation of the Arctic basin using consistent ocean and atmospheric forcing. Sensitivities of ice volume, ice area, ice extent, root mean square (RMS) ice speed, central Arctic ice thickness,and central Arctic ice speed with respect to ten different dynamic and thermodynamic parameters are evaluated both individually and in combination using the Design Analysis Kit for Optimization and Terascale Applications (DAKOTA). We find similar responses for the two codes and some interesting seasonal variability in the strength of the parameters on the solution.

Peterson, Kara J.; Bochev, Pavel Blagoveston; Paskaleva, Biliana Stefanova

2010-12-01T23:59:59.000Z

144

Preheated Combustion Air (International Fact Sheet), Energy Tips-Process Heating, Process Heating Tip Sheet #1c  

Science Conference Proceedings (OSTI)

This English/Chinese international tip sheet provides information for optimizing industrial process heating systems and includes measurements in metric units.

Not Available

2010-10-01T23:59:59.000Z

145

U.S. Department of Energy FreedomCar & Vehicle Technologies Program CARB Executive Order Exemption Process for a Hydrogen-fueled Internal Combustion engine Vehicle -- Status Report  

DOE Green Energy (OSTI)

The CARB Executive Order Exemption Process for a Hydrogen-fueled Internal Combustion Engine Vehicle was undertaken to define the requirements to achieve a California Air Resource Board Executive Order for a hydrogenfueled vehicle retrofit kit. A 2005 to 2006 General Motors Company Sierra/Chevrolet Silverado 1500HD pickup was assumed to be the build-from vehicle for the retrofit kit. The emissions demonstration was determined not to pose a significant hurdle due to the non-hydrocarbon-based fuel and lean-burn operation. However, significant work was determined to be necessary for Onboard Diagnostics Level II compliance. Therefore, it is recommended that an Experimental Permit be obtained from the California Air Resource Board to license and operate the vehicles for the durability of the demonstration in support of preparing a fully compliant and certifiable package that can be submitted.

Not Available

2008-04-01T23:59:59.000Z

146

MN Center for Renewable Energy: Cellulosic Ethanol, Optimization of Bio-fuels in Internal Combustion Engines, & Course Development for Technicians in These Areas  

DOE Green Energy (OSTI)

This final report for Grant #DE-FG02-06ER64241, MN Center for Renewable Energy, will address the shared institutional work done by Minnesota State University, Mankato and Minnesota West Community and Technical College during the time period of July 1, 2006 to December 30, 2008. There was a no-cost extension request approved for the purpose of finalizing some of the work. The grant objectives broadly stated were to 1) develop educational curriculum to train technicians in wind and ethanol renewable energy, 2) determine the value of cattails as a biomass crop for production of cellulosic ethanol, and 3) research in Optimization of Bio-Fuels in Internal Combustion Engines. The funding for the MN Center for Renewable Energy was spent on specific projects related to the work of the Center.

John Frey

2009-02-22T23:59:59.000Z

147

ME 374C Combustion Engine Processes ABET EC2000 syllabus  

E-Print Network (OSTI)

ME 374C ­ Combustion Engine Processes Page 1 ABET EC2000 syllabus ME 374C ­ Combustion Engine combustion engines, fuels, carburetion, combustion, exhaust emissions, knock, fuel injection, and factors to an appropriate major sequence in engineering. Textbook(s): Internal Combustion Engines and Automotive Engineering

Ben-Yakar, Adela

148

Coal Combustion Science  

SciTech Connect

The objective of this activity is to support the Office of Fossil Energy in executing research on coal combustion science. This activity consists of basic research on coal combustion that supports both the Pittsburgh Energy Technology Center Direct Utilization Advanced Research and Technology Development Program, and the International Energy Agency Coal Combustion Science Project. Specific tasks for this activity include: (1) coal devolatilization - the objective of this risk is to characterize the physical and chemical processes that constitute the early devolatilization phase of coal combustion as a function of coal type, heating rate, particle size and temperature, and gas phase temperature and oxidizer concentration; (2) coal char combustion -the objective of this task is to characterize the physical and chemical processes involved during coal char combustion as a function of coal type, particle size and temperature, and gas phase temperature and oxygen concentration; (3) fate of mineral matter during coal combustion - the objective of this task is to establish a quantitative understanding of the mechanisms and rates of transformation, fragmentation, and deposition of mineral matter in coal combustion environments as a function of coal type, particle size and temperature, the initial forms and distribution of mineral species in the unreacted coal, and the local gas temperature and composition.

Hardesty, D.R. (ed.); Fletcher, T.H.; Hurt, R.H.; Baxter, L.L. (Sandia National Labs., Livermore, CA (United States))

1991-08-01T23:59:59.000Z

149

A Climatological Study of Internal Gravity Waves in the Atmospheric Boundary Layer Overlying the Brunt Ice Shelf, Antarctica  

Science Conference Proceedings (OSTI)

Internal gravity waves are frequently observed in stably stratified regions of the atmospheric boundary layer. In order to determine the statistical influence of such waves on the dynamics of the boundary layer it is necessary to compile ...

J. M. Rees; J. C. W. Denholm-Price; J. C. King; P. S. Anderson

2000-02-01T23:59:59.000Z

150

Hydrogen Fuel Pilot Plant and Hydrogen ICE Vehicle Testing  

DOE Green Energy (OSTI)

The U.S. Department Energy's Advanced Vehicle Testing Activity (AVTA) teamed with Electric Transportation Applications (ETA) and Arizona Public Service (APS) to develop the APS Alternative Fuel (Hydrogen) Pilot Plant that produces and compresses hydrogen on site through an electrolysis process by operating a PEM fuel cell in reverse; natural gas is also compressed onsite. The Pilot Plant dispenses 100% hydrogen, 15 to 50% blends of hydrogen and compressed natural gas (H/CNG), and 100% CNG via a credit card billing system at pressures up to 5,000 psi. Thirty internal combustion engine (ICE) vehicles (including Daimler Chrysler, Ford and General Motors vehicles) are operating on 100% hydrogen and 15 to 50% H/CNG blends. Since the Pilot Plant started operating in June 2002, they hydrogen and H/CNG ICE vehicels have accumulated 250,000 test miles.

J. Francfort (INEEL)

2005-03-01T23:59:59.000Z

151

hydrogen pilot plant, H2ICE vehicle testing INL alternative energy vehicles  

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

Hydrogen Pilot Plant, H2ICE Hydrogen Pilot Plant, H2ICE Vehicle Testing, & INL Alternative Energy Vehicles (Advanced Vehicle Testing Activity) Jim Francfort Discovery Center of Idaho - September 2005 INL/CON-05-00694 AVTA Presentation Outline * Arizona Public Service's Alternative Fuel (Hydrogen) Pilot Plant Design and Operations * Hydrogen internal combustion engine vehicle testing * Oil bypass filter system evaluation * Diesel engine idling testing * INL alternative fuel infrastructure * INL alternative fuel fleet * WWW information APS Alternative Fuel (Alt-Fuel) Pilot Plant - Partners * Arizona Public Service (APS) * Electric Transportation Applications (ETA) * Idaho National Laboratory (INL) * Started operations - 2002 Alt-Fuel Pilot Plant & Vehicle Testing - Objectives * Evaluate the safety & reliability of operating ICE

152

DOE Hydrogen Analysis Repository: Future Fuel Cell and Internal...  

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

Future Fuel Cell and Internal Combustion Engine Automobile Technologies Project Summary Full Title: Future Fuel Cell and Internal Combustion Engine Automobile Technologies: A...

153

Combustion Safety Overview  

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

March 1-2, 2012 March 1-2, 2012 Building America Stakeholders Meeting Austin, Texas Combustion Safety in the Codes Larry Brand Gas Technology Institute Acknowledgement to Paul Cabot - American Gas Association 2 | Building America Program www.buildingamerica.gov Combustion Safety in the Codes Widely adopted fuel gas codes: * National Fuel Gas Code - ANSI Z223.1/NFPA 54, published by AGA and NFPA (NFGC) * International Fuel Gas Code - published by the International Code Council (IFGC) * Uniform Plumbing Code published by IAPMO (UPC) Safety codes become requirements when adopted by the Authority Having Jurisdiction (governments or fire safety authorities) 3 | Building America Program www.buildingamerica.gov Combustion Safety in the Codes Formal Relationships Between these codes: - The IFGC extracts many safety

154

Predictive modeling of combustion processes  

E-Print Network (OSTI)

Recently, there has been an increasing interest in improving the efficiency and lowering the emissions from operating combustors, e.g. internal combustion (IC) engines and gas turbines. Different fuels, additives etc. are ...

Sharma, Sandeep, Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

155

International Journal of Engineering & Technology IJET-IJENS Vol: 11 No: 03 7 Co-combustion of Biosolids with Wood Pellets in a  

E-Print Network (OSTI)

Abstract- Co-combustion of biosolids with coal or other biomass fuel can play a significant role in combustion facilities for energy production and waste management policy context. This paper presents the results of an experimental study to investigate the use of biosolids for cocombustion with wood pellets in a wood pellet stove. Fuel property, gas emissions and stove efficiency are compared. In regard to fuel properties, proximate analysis, ultimate analysis and heating values are determined and emissions of carbon monoxide (CO), nitrogen oxides (NOx) and sulphur dioxide (SO2) are measured and compared. Pilot scale combustion tests revealed that cocombustion of 10 % biosolids with 90% wood pellets resulted in successful combustion without any significant degradation of efficiency and emissions. Nitrogen oxides (NOx) emissions were found to be proportional with the N2 content in the fuel. Sulphur dioxide (SO2) emissions were negligible. Index Terms- Biosolids, co-combustion, wood pellet stove, performance and emissions.

Wood Pellet Stove; Murari Mohon Roy; Animesh Dutta; Kenny Corscadden; Peter Havard

2011-01-01T23:59:59.000Z

156

Computational Combustion  

DOE Green Energy (OSTI)

Progress in the field of computational combustion over the past 50 years is reviewed. Particular attention is given to those classes of models that are common to most system modeling efforts, including fluid dynamics, chemical kinetics, liquid sprays, and turbulent flame models. The developments in combustion modeling are placed into the time-dependent context of the accompanying exponential growth in computer capabilities and Moore's Law. Superimposed on this steady growth, the occasional sudden advances in modeling capabilities are identified and their impacts are discussed. Integration of submodels into system models for spark ignition, diesel and homogeneous charge, compression ignition engines, surface and catalytic combustion, pulse combustion, and detonations are described. Finally, the current state of combustion modeling is illustrated by descriptions of a very large jet lifted 3D turbulent hydrogen flame with direct numerical simulation and 3D large eddy simulations of practical gas burner combustion devices.

Westbrook, C K; Mizobuchi, Y; Poinsot, T J; Smith, P J; Warnatz, J

2004-08-26T23:59:59.000Z

157

Advanced Combustion  

Science Conference Proceedings (OSTI)

Topics covered in this presentation include: the continued importance of coal; related materials challenges; combining oxy-combustion & A-USC steam; and casting large superalloy turbine components.

Holcomb, Gordon R. [NETL

2013-03-05T23:59:59.000Z

158

Engine spray combustion modeling using unified spray model with dynamic mesh refinement.  

E-Print Network (OSTI)

??The primary objective of this study is to improve the spray and combustion modeling of internal combustion engines using dynamic mesh refinement. The first part… (more)

Kolakaluri, Ravi

2009-01-01T23:59:59.000Z

159

Method of combustion for dual fuel engine  

DOE Patents (OSTI)

Apparatus and a method of introducing a primary fuel, which may be a coal water slutty, and a high combustion auxiliary fuel, which may be a conventional diesel oil, into an internal combustion diesel engine comprises detecting the load conditions of the engine, determining the amount of time prior to the top dead center position of the piston to inject the main fuel into the combustion chamber, and determining the relationship of the timing of the injection of the auxiliary fuel into the combustion chamber to achieve a predetermined specific fuel consumption, a predetermined combustion efficiency, and a predetermined peak cylinder firing pressure.

Hsu, Bertrand D. (Erie, PA); Confer, Gregory L. (Erie, PA); Shen, Zujing (Erie, PA); Hapeman, Martin J. (Edinboro, PA); Flynn, Paul L. (Fairview, PA)

1993-12-21T23:59:59.000Z

160

Method of combustion for dual fuel engine  

DOE Patents (OSTI)

Apparatus and a method of introducing a primary fuel, which may be a coal water slurry, and a high combustion auxiliary fuel, which may be a conventional diesel oil, into an internal combustion diesel engine comprises detecting the load conditions of the engine, determining the amount of time prior to the top dead center position of the piston to inject the main fuel into the combustion chamber, and determining the relationship of the timing of the injection of the auxiliary fuel into the combustion chamber to achieve a predetermined specific fuel consumption, a predetermined combustion efficiency, and a predetermined peak cylinder firing pressure. 19 figures.

Hsu, B.D.; Confer, G.L.; Zujing Shen; Hapeman, M.J.; Flynn, P.L.

1993-12-21T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Characterization of a Modified Hexagonal Silver Iodide Ice Nucleus Aerosol  

Science Conference Proceedings (OSTI)

A new ice nucleant aerosol was produced by combustion of a 2% AgI-0.5 mole % Bil3-NH4I-acetone-water solution. The ice nucleating effectiveness of this aerosol is an order of magnitude greater than AgI alone at ?10°C. An X-ray powder analysis ...

Paul T. Scott; William G. Finnegan; Peter C. Sinclair

1989-08-01T23:59:59.000Z

162

A TWP-ICE High-Level Cloud Case Study  

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

A TWP-ICE High-Level Cloud Case Study Mace, Gerald University of Utah Category: Field Campaigns The Tropical Warm Pool International Cloud Experiment (TWP ICE) was conducted near...

163

Archimedean Ice  

E-Print Network (OSTI)

The striking boundary dependency (the Arctic Circle phenomenon) exhibited in the ice model on the square lattice extends to other planar set-ups. We present these findings for the triangular and the Kagome lattices. Critical connectivity results guarantee that ice configurations can be generated using the simplest and most efficient local actions. Height functions are utilized throughout the analysis. At the end there is a surprise in store: on the remaining Archimedean lattice for which the ice model can be defined, the 3.4.6.4. lattice, the long range behavior is completely different from the other cases.

Kari Eloranta

2009-09-22T23:59:59.000Z

164

NETL: Combustion Technologies  

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

Summary for the Combustion Program The Combustion Technologies Product promotes the advancement of coal combustion power generation for use in industrial, commercial, and utility...

165

COMBUSTION RESEARCH - FY-1979  

E-Print Network (OSTI)

Optical Measurement of Combustion Products by Zeeman Atomicand T. Hadeishi • . . • . • . • • . • Combustion Sources offrom Pulverized Coal Combustion J. Pennucci, R. Greif, F.

,

2012-01-01T23:59:59.000Z

166

Hydrogen ICE  

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

Chevrolet Silverado 1500HD Hydrogen ICE 1 Conversion Vehicle Specifications Engine: 6.0 L V8 Fuel Capacity: 10.5 GGE Nominal Tank Pressure: 5,000 psi Seatbelt Positions: Five...

167

Advanced Combustion  

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

Systems Systems Advanced Combustion Background Conventional coal-fired power plants utilize steam turbines to generate electricity, which operate at efficiencies of 35-37 percent. Operation at higher temperatures and pressures can lead to higher efficiencies, resulting in reduced fuel consumption and lower greenhouse gas emissions. Higher efficiency also reduces CO2 production for the same amount of energy produced, thereby facilitating a reduction in greenhouse gas emissions. When combined, oxy-combustion comes with an efficiency hit, so it will actually increase the amount of CO2 to be captured. But without so much N2 in the flue gas, it will be easier and perhaps more efficient to capture, utilize and sequester. NETL's Advanced Combustion Project and members of the NETL-Regional University

168

Ice Fishing  

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

Ice Fishing Ice Fishing Nature Bulletin No. 327-A January 11, 1969 Forest Preserve District of Cook County Richard B. Ogilvie, President Roland F. Eisenbeis, Supt. of Conservation ICE FISHING We have a peculiar class of people known as the "Frosty-toed Tribe". As soon as winter comes and the ice permits, they put on all the clothes they own and what they can borrow, pack their automobiles with equipment, and start early in the morning for some inland body of water or a bay along one of the Great Lakes. Usually, two or three go together and they may drive 50 or 100 miles. For hours, even in below zero weather, they huddle around holes cut in the ice, fishing patiently, sustained by hope, hot coffee, and a lot of conversation. Some days a man may catch nothing. Other days he may bring home all the law allows. Sometimes he fishes vainly until almost sundown and then begins to haul them in, all of the same kind and size, as fast as he can re-bait his hook. In the meantime, other anglers have rushed over, cut holes, and are fishing all around him -- usually in vain, because one of the strange things about ice fishing is that, although you may catch fish out of one hole, you may get nothing out of another only a few feet from it, using the same kind of bait at the same depth. There are a lot of hotly contested theories but nobody knows why. After watching and questioning scores of ice fishermen, some of them noted for their prowess, we find that although each has his own secret techniques and favorite spots, good catches seem more a matter of luck than skill. Although they are sluggish and don't fight, fish caught in winter have the firmest flesh and finest flavor. The biggest thrill comes from the skillet.

169

Method and system for controlled combustion engines  

DOE Patents (OSTI)

A system for controlling combustion in internal combustion engines of both the Diesel or Otto type, which relies on establishing fluid dynamic conditions and structures wherein fuel and air are entrained, mixed and caused to be ignited in the interior of a multiplicity of eddies, and where these structures are caused to sequentially fill the headspace of the cylinders.

Oppenheim, A. K. (Berkeley, CA)

1990-01-01T23:59:59.000Z

170

Dynamic implementation in organizing an ice hockey tournament.  

E-Print Network (OSTI)

??The aim of this thesis is to follow, describe and evaluate the phases of organizing internationally recognized ice hockey tournament. The authors were following the… (more)

Ijäs, Juhani

2012-01-01T23:59:59.000Z

171

Engine Valve Actuation For Combustion Enhancement  

DOE Patents (OSTI)

A combustion chamber valve, such as an intake valve or an exhaust valve, is briefly opened during the compression and/or power strokes of a 4-stroke combustion cycle in an internal combustion engine (in particular, a diesel or CI engine). The brief opening may (1) enhance mixing withing the combustion chamber, allowing more complete oxidation of particulates to decrease engine emissions; and/or may (2) delay ignition until a more desirable time, potentially allowing a means of timing ignition in otherwise difficult-to-control conditions, e.g., in HCCI (Homogeneous Charge Compression Ignition) conditions.

Reitz, Rolf Deneys (Madison, WI); Rutland, Christopher J. (Madison, WI); Jhavar, Rahul (Madison, WI)

2004-05-18T23:59:59.000Z

172

Engine valve actuation for combustion enhancement  

DOE Patents (OSTI)

A combustion chamber valve, such as an intake valve or an exhaust valve, is briefly opened during the compression and/or power strokes of a 4-strokes combustion cycle in an internal combustion engine (in particular, a diesel or CI engine). The brief opening may (1) enhance mixing withing the combustion chamber, allowing more complete oxidation of particulates to decrease engine emissions; and/or may (2) delay ignition until a more desirable time, potentially allowing a means of timing ignition in otherwise difficult-to-control conditions, e.g., in HCCI (Homogeneous Charge Compression Ignition) conditions.

Reitz, Rolf Deneys (Madison, WI); Rutland, Christopher J. (Madison, WI); Jhavar, Rahul (Madison, WI)

2008-03-04T23:59:59.000Z

173

Advanced Combustion  

Science Conference Proceedings (OSTI)

The activity reported in this presentation is to provide the mechanical and physical property information needed to allow rational design, development and/or choice of alloys, manufacturing approaches, and environmental exposure and component life models to enable oxy-fuel combustion boilers to operate at Ultra-Supercritical (up to 650{degrees}C & between 22-30 MPa) and/or Advanced Ultra-Supercritical conditions (760{degrees}C & 35 MPa).

Holcomb, Gordon R. [NETL

2013-03-11T23:59:59.000Z

174

Radar and Radiation Properties of Ice Clouds  

Science Conference Proceedings (OSTI)

The authors derive relations of the equivalent radar reflectivity Ze and extinction coefficient ? of ice clouds and confirm the theory by in situ aircraft observations during the First International Satellite Cloud Climatology Project Regional ...

David Atlas; Sergey Y. Matrosov; Andrew J. Heymsfield; Ming-Dah Chou; David B. Wolff

1995-11-01T23:59:59.000Z

175

A hybrid 2-zone/WAVE engine combustion model for simulating combustion instabilities during dilute operation  

Science Conference Proceedings (OSTI)

Internal combustion engines are operated under conditions of high exhaust gas recirculation (EGR) to reduce NO x emissions and promote enhanced combustion modes such as HCCI. However, high EGR under certain conditions also promotes nonlinear feedback between cycles, leading to the development of combustion instabilities and cyclic variability. We employ a two-zone phenomenological combustion model to simulate the onset of combustion instabilities under highly dilute conditions and to illustrate the impact of these instabilities on emissions and fuel efficiency. The two-zone in-cylinder combustion model is coupled to a WAVE engine-simulation code through a Simulink interface, allowing rapid simulation of several hundred successive engine cycles with many external engine parametric effects included. We demonstrate how this hybrid model can be used to study strategies for adaptive feedback control to reduce cyclic combustion instabilities and, thus, preserve fuel efficiency and reduce emissions.

Edwards, Kevin Dean [ORNL; Wagner, Robert M [ORNL; Chakravarthy, Veerathu K [ORNL; Daw, C Stuart [ORNL; Green Jr, Johney Boyd [ORNL

2006-01-01T23:59:59.000Z

176

Ice Storm Database and Ice Severity Maps  

Science Conference Proceedings (OSTI)

Historical icing information has several valuable uses in overhead transmission line ice loading design and research. Previously, this type of information was neither readily available nor easily acquired. This report describes the creation of an electronic ice storm database and regional ice severity maps for the United States.

1996-12-17T23:59:59.000Z

177

Simulation of lean premixed turbulent combustion  

E-Print Network (OSTI)

turbulent methane combustion. Proc. Combust. Inst. , 29:in premixed turbulent combustion. Proc. Combust. Inst. ,for zero Mach number combustion. Combust. Sci. Technol. ,

2008-01-01T23:59:59.000Z

178

Vehicle Technologies Office: Advanced Combustion Engines  

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

Combustion Engines Combustion Engines Improving the efficiency of internal combustion engines is one of the most promising and cost-effective near- to mid-term approaches to increasing highway vehicles' fuel economy. The Vehicle Technologies Office's research and development activities address critical barriers to commercializing higher efficiency, very low emissions advanced internal combustion engines for passenger and commercial vehicles. This technology has great potential to reduce U.S. petroleum consumption, resulting in greater economic, environmental, and energy security. Already offering outstanding drivability and reliability to over 230 million passenger vehicles, internal combustion engines have the potential to become substantially more efficient. Initial results from laboratory engine tests indicate that passenger vehicle fuel economy can be improved by more than up to 50 percent, and some vehicle simulation models estimate potential improvements of up to 75 percent. Advanced combustion engines can utilize renewable fuels, and when combined with hybrid electric powertrains could have even further reductions in fuel consumption. As the EIA reference case forecasts that by 2035, more than 99 percent of light- and heavy-duty vehicles sold will still have internal combustion engines, the potential fuel savings is tremendous.

179

Heat recovery anti-icing system  

SciTech Connect

A heat recovery anti-icing system is disclosed. The heat recovery system includes a blower which removes air from the air flow path of a combustion turbine power generating system and circulates the air through a heat exchanger located in the exhaust stack of the combustion turbine. The heated air circulating through the heat exchanger is returned to an inlet filter compartment in the air flow path so as to maintain the temperature of the air in the inlet filter compartment at an elevated level.

Cummins, J.R.

1982-05-11T23:59:59.000Z

180

Combustion Technologies Group  

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

Combustion Technologies Group Combustion research generates the fundamental physical and chemical knowledge on the interaction between flame and turbulence. Experimental and...

Note: This page contains sample records for the topic "ice internal combustion" 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

NETL: Combustion Technologies  

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

with Combustion A number of companies are participating in DOE's evaluation of Combustion Systems products. The list below gives you access to each participant company's home page....

182

E-Alerts: Combustion, engines, and propellants (reciprocation and rotating combustion engines). E-mail newsletter  

Science Conference Proceedings (OSTI)

Design, performance, and testing of reciprocating and rotating engines of various configurations for all types of propulsion. Includes internal and external combustion engines; engine exhaust systems; engine air systems components; engine structures; stirling and diesel engines.

NONE

1999-04-01T23:59:59.000Z

183

Glossary Term - Dry Ice  

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

Deuteron Previous Term (Deuteron) Glossary Main Index Next Term (Electron) Electron Dry Ice A block of dry ice sublimating on a table. Dry ice is the solid form of carbon dioxide...

184

Effect of market fuel variation and cetane improvers on CAI combustion in a GDI engine  

E-Print Network (OSTI)

There is continued interest in improving the fuel conversion efficiency of internal combustion engines and simultaneously reducing their emissions. One promising technology is that of Controlled Auto Ignition (CAI) combustion. ...

Cedrone, Kevin David

2010-01-01T23:59:59.000Z

185

In Situ, Airborne Instrumentation: Addressing and Solving Measurement Problems in Ice Clouds  

E-Print Network (OSTI)

A meeting of 31 international experts on in situ measurements from aircraft was held to identify unresolved questions concerning ice formation and evolution in ice clouds, assess the current state of instrumentation that ...

Cziczo, Daniel James

186

Transport Properties for Combustion Modeling  

E-Print Network (OSTI)

a critical role in combustion processes just as chemicalparameters are essential for combustion modeling; molecularwith Application to Combustion. Transport Theor Stat 2003;

Brown, N.J.

2010-01-01T23:59:59.000Z

187

Vehículos de Célula de Combustible  

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

de Clula de Combustible Vehculo de Clula de Combustible Honda Clarity FCX Los vehculos de clula de combustible (FCVs)tambin llamados de pila de combustibletienen el...

188

Combustion 2000  

SciTech Connect

This report is a presentation of work carried out on Phase II of the HIPPS program under DOE contract DE-AC22-95PC95144 from June 1995 to March 2001. The objective of this report is to emphasize the results and achievements of the program and not to archive every detail of the past six years of effort. These details are already available in the twenty-two quarterly reports previously submitted to DOE and in the final report from Phase I. The report is divided into three major foci, indicative of the three operational groupings of the program as it evolved, was restructured, or overtaken by events. In each of these areas, the results exceeded DOE goals and expectations. HIPPS Systems and Cycles (including thermodynamic cycles, power cycle alternatives, baseline plant costs and new opportunities) HITAF Components and Designs (including design of heat exchangers, materials, ash management and combustor design) Testing Program for Radiative and Convective Air Heaters (including the design and construction of the test furnace and the results of the tests) There are several topics that were part of the original program but whose importance was diminished when the contract was significantly modified. The elimination of the subsystem testing and the Phase III demonstration lessened the relevance of subtasks related to these efforts. For example, the cross flow mixing study, the CFD modeling of the convective air heater and the power island analysis are important to a commercial plant design but not to the R&D product contained in this report. These topics are of course, discussed in the quarterly reports under this contract. The DOE goal for the High Performance Power Plant System ( HIPPS ) is high thermodynamic efficiency and significantly reduced emissions. Specifically, the goal is a 300 MWe plant with > 47% (HHV) overall efficiency and {le} 0.1 NSPS emissions. This plant must fire at least 65% coal with the balance being made up by a premium fuel such as natural gas. To achieve these objectives requires a change from complete reliance of coal-fired systems on steam turbines (Rankine cycles) and moving forward to a combined cycle utilizing gas turbines (Brayton cycles) which offer the possibility of significantly greater efficiency. This is because gas turbine cycles operate at temperatures well beyond current steam cycles, allowing the working fluid (air) temperature to more closely approach that of the major energy source, the combustion of coal. In fact, a good figure of merit for a HIPPS design is just how much of the enthalpy from coal combustion is used by the gas turbine. The efficiency of a power cycle varies directly with the temperature of the working fluid and for contemporary gas turbines the optimal turbine inlet temperature is in the range of 2300-2500 F (1260-1371 C). These temperatures are beyond the working range of currently available alloys and are also in the range of the ash fusion temperature of most coals. These two sets of physical properties combine to produce the major engineering challenges for a HIPPS design. The UTRC team developed a design hierarchy to impose more rigor in our approach. Once the size of the plant had been determined by the choice of gas turbine and the matching steam turbine, the design process of the High Temperature Advanced Furnace (HITAF) moved ineluctably to a down-fired, slagging configuration. This design was based on two air heaters: one a high temperature slagging Radiative Air Heater (RAH) and a lower temperature, dry ash Convective Air Heater (CAH). The specific details of the air heaters are arrived at by an iterative sequence in the following order:-Starting from the overall Cycle requirements which set the limits for the combustion and heat transfer analysis-The available enthalpy determined the range of materials, ceramics or alloys, which could tolerate the temperatures-Structural Analysis of the designs proved to be the major limitation-Finally the commercialization issues of fabrication and reliability, availability and maintenance. The program that has s

A. Levasseur; S. Goodstine; J. Ruby; M. Nawaz; C. Senior; F. Robson; S. Lehman; W. Blecher; W. Fugard; A. Rao; A. Sarofim; P. Smith; D. Pershing; E. Eddings; M. Cremer; J. Hurley; G. Weber; M. Jones; M. Collings; D. Hajicek; A. Henderson; P. Klevan; D. Seery; B. Knight; R. Lessard; J. Sangiovanni; A. Dennis; C. Bird; W. Sutton; N. Bornstein; F. Cogswell; C. Randino; S. Gale; Mike Heap

2001-06-30T23:59:59.000Z

189

Solution Combustion Synthesis Impregnated Layer Combustion Synthesis is a Novel  

E-Print Network (OSTI)

Solution Combustion Synthesis Impregnated Layer Combustion Synthesis is a Novel Methodology Engineering University of Notre Dame University of Notre Dame #12;Outline: Overview of combustion synthesis Reaction system Combustion front analaysis Theoretical model results Conclusions Acknowledgements #12

Mukasyan, Alexander

190

Arctic ice islands  

SciTech Connect

The development of offshore oil and gas resources in the Arctic waters of Alaska requires offshore structures which successfully resist the lateral forces due to moving, drifting ice. Ice islands are floating, a tabular icebergs, up to 60 meters thick, of solid ice throughout their thickness. The ice islands are thus regarded as the strongest ice features in the Arctic; fixed offshore structures which can directly withstand the impact of ice islands are possible but in some locations may be so expensive as to make oilfield development uneconomic. The resolution of the ice island problem requires two research steps: (1) calculation of the probability of interaction between an ice island and an offshore structure in a given region; and (2) if the probability if sufficiently large, then the study of possible interactions between ice island and structure, to discover mitigative measures to deal with the moving ice island. The ice island research conducted during the 1983-1988 interval, which is summarized in this report, was concerned with the first step. Monte Carlo simulations of ice island generation and movement suggest that ice island lifetimes range from 0 to 70 years, and that 85% of the lifetimes are less then 35 years. The simulation shows a mean value of 18 ice islands present at any time in the Arctic Ocean, with a 90% probability of less than 30 ice islands. At this time, approximately 34 ice islands are known, from observations, to exist in the Arctic Ocean, not including the 10-meter thick class of ice islands. Return interval plots from the simulation show that coastal zones of the Beaufort and Chukchi Seas, already leased for oil development, have ice island recurrences of 10 to 100 years. This implies that the ice island hazard must be considered thoroughly, and appropriate safety measures adopted, when offshore oil production plans are formulated for the Alaskan Arctic offshore. 132 refs., 161 figs., 17 tabs.

Sackinger, W.M.; Jeffries, M.O.; Lu, M.C.; Li, F.C.

1988-01-01T23:59:59.000Z

191

CO2 Emissions from Fuel Combustion | Open Energy Information  

Open Energy Info (EERE)

CO2 Emissions from Fuel Combustion CO2 Emissions from Fuel Combustion Jump to: navigation, search Tool Summary Name: CO2 Emissions from Fuel Combustion Agency/Company /Organization: International Energy Agency Sector: Energy Topics: Baseline projection, GHG inventory Resource Type: Dataset, Publications Website: www.iea.org/co2highlights/co2highlights.pdf CO2 Emissions from Fuel Combustion Screenshot References: CO2 Emissions from Fuel Combustion[1] Overview "This annual publication contains: estimates of CO2 emissions by country from 1971 to 2008 selected indicators such as CO2/GDP, CO2/capita, CO2/TPES and CO2/kWh CO2 emissions from international marine and aviation bunkers, and other relevant information" Excel Spreadsheet References ↑ "CO2 Emissions from Fuel Combustion"

192

HYDROGEN ASSISTED DIESEL COMBUSTION.  

E-Print Network (OSTI)

??In this study, the effect of hydrogen assisted diesel combustion on conventional and advanced combustion modes was investigated on a DDC/VM Motori 2.5L, 4-cylinder, turbocharged,… (more)

Lilik, Gregory

2008-01-01T23:59:59.000Z

193

A Wind Tunnel and Theoretical Study of the Melting Behavior of Atmospheric Ice Particles. II: A Theoretical Study for Frozen Drops of Radius < 500 ?m  

Science Conference Proceedings (OSTI)

The internal and external heat transfer of a melting spherical ice particles less than 500 ?m radius has been investigated theoretically. The effect of an internal circulation and eccentric location of the ice core was modeled. These two effects ...

R. M. Rasmussen; V. Levizzani; H. R. Pruppacher

1984-02-01T23:59:59.000Z

194

NETL: IEP – Post-Combustion CO2 Emissions Control - Oxy-Combustion  

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

IEP - Oxy-Combustion CO2 Emissions Control IEP - Oxy-Combustion CO2 Emissions Control Oxy-Combustion Technology Development for Industrial-Scale Boiler Applications Project No.: DE-NT0005290 Alstom oxy-combustion test facility Alstom oxy-combustion test facility. Alstom will develop an oxyfuel firing system design specifically for retrofit to tangential-fired (T-fired) boilers and provide information to address the technical gaps for commercial boiler design. Several oxyfuel system design concepts, such as internal flue gas recirculation and various oxygen injection schemes, will be evaluated for cost-effectiveness in satisfying furnace design conditions in a T-fired boiler. The evaluation will use an array of tools, including Alstom's proprietary models and design codes, along with 3-D computational fluid dynamics modeling. A

195

Combustion oscillation control  

SciTech Connect

Premixing of fuel and air can avoid high temperatures which produce thermal NOx, but oscillating combustion must be eliminated. Combustion oscillations can also occur in Integrated Gasification Combined Cycle turbines. As an alternative to design or operating modifications, METC is investigating active combustion control (ACC) to eliminate oscillations; ACC uses repeated adjustment of some combustion parameter to control the variation in heat release that drives oscillations.

Richards, G.A.; Janus, M.C.

1996-12-31T23:59:59.000Z

196

Proceedings: Coal Combustion Workshop  

Science Conference Proceedings (OSTI)

The primary objective of the 2007 Coal Combustion workshop was to present a holistic view of the various combustion processes required for minimal emissions, peak performance, and maximum reliability in a coal-fired power plant. The workshop also defined needs for future RD in coal combustion technology.

2008-01-09T23:59:59.000Z

197

Medical ice slurry production device  

DOE Patents (OSTI)

The present invention relates to an apparatus for producing sterile ice slurries for medical cooling applications. The apparatus is capable of producing highly loaded slurries suitable for delivery to targeted internal organs of a patient, such as the brain, heart, lungs, stomach, kidneys, pancreas, and others, through medical size diameter tubing. The ice slurry production apparatus includes a slurry production reservoir adapted to contain a volume of a saline solution. A flexible membrane crystallization surface is provided within the slurry production reservoir. The crystallization surface is chilled to a temperature below a freezing point of the saline solution within the reservoir such that ice particles form on the crystallization surface. A deflector in the form of a reciprocating member is provided for periodically distorting the crystallization surface and dislodging the ice particles which form on the crystallization surface. Using reservoir mixing the slurry is conditioned for easy pumping directly out of the production reservoir via medical tubing or delivery through other means such as squeeze bottles, squeeze bags, hypodermic syringes, manual hand delivery, and the like.

Kasza, Kenneth E. (Palos Park, IL); Oras, John (Des Plaines, IL); Son, HyunJin (Naperville, IL)

2008-06-24T23:59:59.000Z

198

Modeling and Rendering Physically-Based Wood Combustion  

Science Conference Proceedings (OSTI)

Rendering of wood combustion has received some attention recently, but prior work has not incorporated effects of internal wood properties such as density variation (i.e. "grain") and pre-combustion processes such as drying. In this paper we present ...

Roderick M. Riensche; Robert R. Lewis

2009-11-01T23:59:59.000Z

199

Aging of Accreted Ice  

Science Conference Proceedings (OSTI)

The effect of annealing in accreted ice has been investigated for artificially grown ice deposits after 100 days of storage in a deep freeze unit. Cross sections of the cylindrical deposits have been cut and replicated soon after growth and ...

F. Prodi; L. Levi

1980-06-01T23:59:59.000Z

200

ARM - Measurement - Ice nuclei  

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

to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Ice nuclei Small particles around which ice particles form. Categories Cloud Properties...

Note: This page contains sample records for the topic "ice internal combustion" 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

Anemometry in Icing Conditions  

Science Conference Proceedings (OSTI)

The accuracy of wind measurements in icing conditions is discussed, and wind tunnel calibrations as well as field comparisons are presented for three heated anemometers that use different measuring principles. It is pointed out that ice-free ...

Lasse Makkonen; Pertti Lehtonen; Lauri Helle

2001-09-01T23:59:59.000Z

202

Table 8.5a Consumption of Combustible Fuels for Electricity ...  

U.S. Energy Information Administration (EIA)

Wood 8: Waste 9: Short Tons: Barrels: Short Tons: Barrels: Thousand Cubic Feet: ... For 1949–1979, data are for gas turbine and internal combustion plant use of ...

203

Table 8.5b Consumption of Combustible Fuels for Electricity ...  

U.S. Energy Information Administration (EIA)

Wood 8: Waste 9: Thousand Short Tons: Thousand Barrels: Thousand Short Tons: ... For 1949-1979, data are for gas turbine and internal combustion plant use of petroleum.

204

Table 8.5a Consumption of Combustible Fuels for Electricity ...  

U.S. Energy Information Administration (EIA)

Wood 8: Waste 9: Thousand Short Tons: Thousand Barrels: Thousand Short Tons: ... For 1949-1979, data are for gas turbine and internal combustion plant use of petroleum.

205

Table 8.5a Consumption of Combustible Fuels for Electricity ...  

U.S. Energy Information Administration (EIA)

For 1949–1979, data are for gas turbine and internal combustion plant use of petroleum. For 1980–2000, ... 8 Wood and wood-derived fuels.

206

Ice electrode electrolytic cell  

DOE Patents (OSTI)

This invention relates to a method and apparatus for removing heavy metals from waste water, soils, or process streams by electrolytic cell means. The method includes cooling a cell cathode to form an ice layer over the cathode and then applying an electric current to deposit a layer of the heavy metal over the ice. The metal is then easily removed after melting the ice. In a second embodiment, the same ice-covered electrode can be employed to form powdered metals.

Glenn, David F. (Idaho Falls, ID); Suciu, Dan F. (Idaho Falls, ID); Harris, Taryl L. (Idaho Falls, ID); Ingram, Jani C. (Idaho Falls, ID)

1993-01-01T23:59:59.000Z

207

Ice electrode electrolytic cell  

DOE Patents (OSTI)

This invention relates to a method and apparatus for removing heavy metals from waste water, soils, or process streams by electrolytic cell means. The method includes cooling a cell cathode to form an ice layer over the cathode and then applying an electric current to deposit a layer of the heavy metal over the ice. The metal is then easily removed after melting the ice. In a second embodiment, the same ice-covered electrode can be employed to form powdered metals.

Glenn, D.F.; Suciu, D.F.; Harris, T.L.; Ingram, J.C.

1993-04-06T23:59:59.000Z

208

Stability of ferroelectric ice  

E-Print Network (OSTI)

We theoretically study the stability conditions of the ferroelectric ice of the Cmc21 structure, which has been considered, for decades, one of the most promising candidates of the low temperature proton-ordered phase of pure ice Ih. It turned out that the Cmc21 structure is stable only with a certain amount of dopant and the true proton-ordered phase of pure ice Ih remains to be found at lower temperature. Implication for spin ice is mentioned.

Iitaka, Toshiaki

2010-01-01T23:59:59.000Z

209

Ice electrode electrolytic cell  

DOE Patents (OSTI)

This invention relates to a method and apparatus for removing heavy metals from waste water, soils, or process streams by electrolytic cell means. The method includes cooling a cell cathode to form an ice layer over the cathode and then applying an electric current to deposit a layer of the heavy metal over the ice. The metal is then easily removed after melting the ice. In a second embodiment, the same ice-covered electrode can be employed to form powdered metals.

Glenn, D.F.; Suciu, D.F.; Harris, T.L.; Ingram, J.C.

1992-12-31T23:59:59.000Z

210

Ice Formation in Gas-Diffusion Layers  

SciTech Connect

Under sub-freezing conditions, ice forms in the gas-diffusion layer (GDL) of a proton exchange membrane fuel cell (PEMFC) drastically reducing cell performance. Although a number of strategies exist to prevent ice formation, there is little fundamental understanding of the mechanisms of freezing within PEMFC components. Differential scanning calorimetry (DSC) is used to elucidate the effects of hydrophobicity (Teflon® loading) and water saturation on the rate of ice formation within three commercial GDLs. We find that as the Teflon® loading increases, the crystallization temperature decreases due to a change in internal ice/substrate contact angle, as well as the attainable level of water saturation. Classical nucleation theory predicts the correct trend in freezing temperature with Teflon® loading.

Dursch, Thomas; Radke, Clayton J.; Weber, Adam Z.

2010-07-10T23:59:59.000Z

211

Predictions and Studies with a One-Dimensional Ice–Ocean Model  

Science Conference Proceedings (OSTI)

A coupled one-dimensional ice-ocean model is used for studies of Arctic phenomena. The ice-snow system is represented by the simplified thermodynamic ice model of Semtner and a dynamic approximation that neglects the internal stresses. The ocean ...

Shelley H. Riedlinger; Alex Warn-Varnas

1990-10-01T23:59:59.000Z

212

Boiler using combustible fluid  

DOE Patents (OSTI)

A fluid fuel boiler is described comprising a combustion chamber, a cover on the combustion chamber having an opening for introducing a combustion-supporting gaseous fluid through said openings, means to impart rotation to the gaseous fluid about an axis of the combustion chamber, a burner for introducing a fluid fuel into the chamber mixed with the gaseous fluid for combustion thereof, the cover having a generally frustro-conical configuration diverging from the opening toward the interior of the chamber at an angle of between 15/sup 0/ and 55/sup 0/; means defining said combustion chamber having means defining a plurality of axial hot gas flow paths from a downstream portion of the combustion chamber to flow hot gases into an upstream portion of the combustion chamber, and means for diverting some of the hot gas flow along paths in a direction circumferentially of the combustion chamber, with the latter paths being immersed in the water flow path thereby to improve heat transfer and terminating in a gas outlet, the combustion chamber comprising at least one modular element, joined axially to the frustro-conical cover and coaxial therewith. The modular element comprises an inner ring and means of defining the circumferential, radial, and spiral flow paths of the hot gases.

Baumgartner, H.; Meier, J.G.

1974-07-03T23:59:59.000Z

213

Advanced Vehicle Testing Activity: Hydrogen Internal Combustion...  

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

blends in real time and delivers 15, 20, 30 and 50% hydrogen and compressed natural gas (CNG), can be found in Hydrogen, CNG, and HCNG Dispenser System - Prototype Report (PDF 409...

214

Advanced Vehicle Testing Activity- Hydrogen Internal Combustion...  

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

Applications (ETA) to construct and operate a hydrogen and compressed natural gas (HCNG) generation and fueling facility in Phoenix, Arizona. The HCNG facility provides pure...

215

Advanced Vehicle Testing Activity: Hydrogen Internal Combustion...  

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

is that they can run on pure hydrogen or a blend of hydrogen and compressed natural gas (CNG). That fuel flexibility is very attractive as a means of addressing the widespread lack...

216

Combustion Analysis Software Package for Internal ...  

Technology Marketing Summary. Researchers at the Colorado State University Engines and Energy Conversion Laboratory have developed a complete software ...

217

APPENDIX B: CARBON DIOXIDE CAPTURE TECHNOLOGY SHEETS PRE-COMBUSTION SOLVENTS  

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

CARBON DIOXIDE CAPTURE TECHNOLOGY SHEETS PRE-COMBUSTION SOLVENTS PRE-COMBUSTION SORBENTS PRE-COMBUSTION MEMBRANES POST-COMBUSTION SOLVENTS POST-COMBUSTION SORBENTS POST-COMBUSTION MEMBRANES OXY-COMBUSTION OXYGEN PRODUCTION CHEMICAL LOOPING ADVANCED COMPRESSION R&D COLLABORATIONS B-1 APPENDIX B: CARBON DIOXIDE CAPTURE TECHNOLOGY SHEETS APPENDIX B: CARBON DIOXIDE CAPTURE TECHNOLOGY SHEETS NATIONAL ENERGY TECHNOLOGY LABORATORY PRE-COMBUSTION SOLVENTS B-6 SRI International - CO 2 Capture Using AC-ABC Processt B-7 PRE-COMBUSTION SORBENTS B-14 TDA Research - CO 2 Capture for Low-Rank Coal IGCC Systems B-15 URS Group - Sorbent Development for WGS B-18 Air Products and Chemicals - Advanced Acid Gas Separation B-24 Ohio State University-Department of Chemical Engineering - Calcium Looping for Hydrogen Production B-33

218

Precision Combustion, Inc  

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

Developing Reliable, Cost Effective Fuel Processors. Abstract: Precision Combustion, Inc. (PCI) is developing ultra-compact Fuel Processing systems for a range of Fuel Cells and...

219

Low NOx combustion  

DOE Patents (OSTI)

Combustion of hydrocarbon liquids and solids is achieved with less formation of NOx by feeding a small amount of oxygen into the fuel stream.

Kobayashi, Hisashi (Putnam Valley, NY); Bool, III, Lawrence E. (Aurora, NY)

2008-10-21T23:59:59.000Z

220

Low NOx combustion  

DOE Patents (OSTI)

Combustion of hydrocarbon liquids and solids is achieved with less formation of NOx by feeding a small amount of oxygen into the fuel stream.

Kobayashi; Hisashi (Putnam Valley, NY), Bool, III; Lawrence E. (Aurora, NY)

2007-06-05T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Light Duty Efficient, Clean Combustion  

SciTech Connect

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy's Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: (1) Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today's state-of-the-art diesel engine on the FTP city drive cycle; (2) Develop and design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements; (3) Maintain power density comparable to that of current conventional engines for the applicable vehicle class; and (4) Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: (1) A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target; (2) An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system; (3) Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system; (4) Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle - Additional technical barriers exist for the no NOx aftertreatment engine; (5) Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated; (6) The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing; (7) The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment; (8) The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment; (9) Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines); and (10) Key subsystems developed include - sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system. An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light-Duty Vehicles (ATP-LD) started in 2010.

Donald Stanton

2010-12-31T23:59:59.000Z

222

Light Duty Efficient, Clean Combustion  

DOE Green Energy (OSTI)

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy's Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: (1) Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today's state-of-the-art diesel engine on the FTP city drive cycle; (2) Develop and design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements; (3) Maintain power density comparable to that of current conventional engines for the applicable vehicle class; and (4) Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: (1) A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target; (2) An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system; (3) Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system; (4) Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle - Additional technical barriers exist for the no NOx aftertreatment engine; (5) Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated; (6) The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing; (7) The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment; (8) The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment; (9) Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines); and (10) Key subsystems developed include - sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system. An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light-Duty Vehicles (ATP-LD) started in 2010.

Donald Stanton

2010-12-31T23:59:59.000Z

223

Light Duty Efficient, Clean Combustion  

SciTech Connect

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy’s Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: 1. Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today’s state-ofthe- art diesel engine on the FTP city drive cycle 2. Develop & design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements. 3. Maintain power density comparable to that of current conventional engines for the applicable vehicle class. 4. Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: ? A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target ? An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system ? Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system ? Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle – Additional technical barriers exist for the no NOx aftertreatment engine ? Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated. ? The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing. ? The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment. ? The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment ? Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines) ? Key subsystems developed include – sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light- Duty Vehicles (ATP-LD) started in 2010.

Stanton, Donald W

2011-06-03T23:59:59.000Z

224

Coal combustion science. Quarterly progress report, April 1993--June 1993  

Science Conference Proceedings (OSTI)

This document is a quarterly status report of the Coal Combustion Science Project that is being conducted at the Combustion Research Facility, Sandia National Laboratories. The information reported is for Apr-Jun 1993. The objective of this work is to support the Office of Fossil Energy in executing research on coal combustion science. This project consists of basic research on coal combustion that supports both the PETC Direct Utilization Advanced Research and Technology Development Program, and the International Energy Agency Coal Combustion Science Project. The objective of the kinetics and mechanisms of pulverized coal char combustion task is to characterize the combustion behavior of selected US coals under conditions relevant to industrial pulverized coal-fired furnaces. Work is being done in four areas: kinetics of heterogeneous fuel particle populations; char combustion kinetics at high carbon conversion; the role of particle structure and the char formation process in combustion and; unification of the Sandia char combustion data base. This data base on the high temperature reactivities of chars from strategic US coals will permit identification of important fuel-specific trends and development of predictive capabilities for advanced coal combustion systems. The objective of the fate of inorganic material during coal combustion task is the establish a quantitative understanding of the mechanisms and rates of transformation, fragmentation, and deposition of inorganic material during coal combustion as a function of coal type, particle size and temperature, the initial forms and distribution of inorganic species in the unreacted coal, and the local gas temperature and composition. In addition, optical diagnostic capabilities are being developed for in situ, real-time detection of inorganic vapor species and surface species during ash deposition. Selected papers have been indexed separately for inclusion in the Energy Science and Technology Database.

Hardesty, D.R. [ed.

1994-05-01T23:59:59.000Z

225

Past experiences with automotive external combustion engines  

SciTech Connect

GMR (General Motors Research Laboratories, now GM R and D Center) has a history of improving the internal combustion engine, especially as it relates to automotive use. During the quarter century from 1950--75, considerable effort was devoted to evaluating alternative powerplants based on thermodynamic cycles different from those on which the established spark-ignition and diesel engines are founded. Two of these, the steam engine and the Stirling engine, incorporated external combustion. Research on those two alternatives is reviewed. Both were judged to fall short of current needs for commercial success as prime movers for conventional automotive vehicles.

Amann, C.A.

1999-07-01T23:59:59.000Z

226

COMBUSTION SOURCES OF NITROGEN COMPOUNDS  

E-Print Network (OSTI)

Rasmussen, R.A. (1976). Combustion as a source of nitrousx control for stationary combustion sources. Prog. Energy,CA, March 3-4, 1977 COMBUSTION SOURCES OF NITROGEN COMPOUNDS

Brown, Nancy J.

2011-01-01T23:59:59.000Z

227

Fifteenth combustion research conference  

Science Conference Proceedings (OSTI)

The BES research efforts cover chemical reaction theory, experimental dynamics and spectroscopy, thermodynamics of combustion intermediates, chemical kinetics, reaction mechanisms, combustion diagnostics, and fluid dynamics and chemically reacting flows. 98 papers and abstracts are included. Separate abstracts were prepared for the papers.

NONE

1993-06-01T23:59:59.000Z

228

Transport Properties for Combustion Modeling  

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

Transport Properties for Combustion Modeling Title Transport Properties for Combustion Modeling Publication Type Journal Article Year of Publication 2011 Authors Brown, Nancy J.,...

229

Liquid Nitrogen Ice Cream  

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

Liquid Nitrogen Ice Cream If you have access to liquid nitrogen and the proper safety equipment and training, try this in place of your normal cryogenics demonstration Download...

230

An ice lithography instrument  

SciTech Connect

We describe the design of an instrument that can fully implement a new nanopatterning method called ice lithography, where ice is used as the resist. Water vapor is introduced into a scanning electron microscope (SEM) vacuum chamber above a sample cooled down to 110 K. The vapor condenses, covering the sample with an amorphous layer of ice. To form a lift-off mask, ice is removed by the SEM electron beam (e-beam) guided by an e-beam lithography system. Without breaking vacuum, the sample with the ice mask is then transferred into a metal deposition chamber where metals are deposited by sputtering. The cold sample is then unloaded from the vacuum system and immersed in isopropanol at room temperature. As the ice melts, metal deposited on the ice disperses while the metals deposited on the sample where the ice had been removed by the e-beam remains. The instrument combines a high beam-current thermal field emission SEM fitted with an e-beam lithography system, cryogenic systems, and a high vacuum metal deposition system in a design that optimizes ice lithography for high throughput nanodevice fabrication. The nanoscale capability of the instrument is demonstrated with the fabrication of nanoscale metal lines.

Han, Anpan [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States); Chervinsky, John [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Branton, Daniel [Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts 02138 (United States); Golovchenko, J. A. [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States); School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States)

2011-06-15T23:59:59.000Z

231

Transporting Dry Ice  

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

Requirements for Shipping Dry Ice IATA PI 904 Source: Reg of the Day from ERCweb 2006 Environmental Resource Center | 919-469-1585 | webmaster@ercweb.com http:...

232

Mobile Ice Nucleus Spectrometer  

SciTech Connect

This first year report presents results from a computational fluid dynamics (CFD) study to assess the flow and temperature profiles within the mobile ice nucleus spectrometer.

Kulkarni, Gourihar R.; Kok, G. L.

2012-05-07T23:59:59.000Z

233

Computation of azimuthal combustion instabilities in an helicopter combustion chamber  

E-Print Network (OSTI)

Computation of azimuthal combustion instabilities in an helicopter combustion chamber C. Sensiau to compute azimuthal combustion instabilities is presented. It requires a thermoacoustic model using a n - formulation for the coupling between acoutics and combustion. The parameters n and are computed from a LES

Nicoud, Franck

234

Recrutement d'un assistant mandat (F/H) au sein de l'Universit de Mons -Facult Polytechnique -Service de Thermique et Combustion  

E-Print Network (OSTI)

- Service de Thermique et Combustion N° de l'offre: UMONS/: 36 Avis interne Avis externeAvis interne/externe au sein de: Faculté Polytechnique Thermique et Combustion L'Université de Mons recrute un doctorat dans le domaine de combustion. Participation à l'encadrement des étudiants (exercices et travaux

Dupont, Stéphane

235

Theoretical studies on hydrogen ignition and droplet combustion  

E-Print Network (OSTI)

1.2 Droplet Combustion . . . . . . . . . . . . .Combustion . . . . . . . . . . . . . . . . . . . . . . . . . .Lewis, B. and von Elbe, G. Combustion, Flames and Explosions

Del Álamo, Gonzalo

2006-01-01T23:59:59.000Z

236

Skin supersolidity slipperizing ice  

E-Print Network (OSTI)

Consistency between theory predictions and measurements and calculations revealed that the skin of ice, containing water molecules with fewer than four neighbours, forms a supersolid phase that is highly polarized, elastic, hydrophobic, with ultra-low density and high thermal stability. The supersolidity of skin sliperizes ice.

Xi Zhang; Yongli Huang; a Zengsheng Ma; Yichun Zhou; Chang Q Sun

2013-10-03T23:59:59.000Z

237

Reionization on ice  

E-Print Network (OSTI)

The case for substantial far infrared ice emission in local ultraluminous infrared galaxies, expected based on the presence of mid-infrared ice absorption in their spectra and the known far infrared optical properties of ice, is still largely unsupported by direct observation owing to insufficient far infrared spectral coverage. Some marginal supportive evidence is presented here. A clear consequence of far infrared ice emission is the need to extend the range of redshifts considered for submillimeter sources. This is demonstrated via the example of HDF 850.1. The solid phase of the ISM during reionization may be dominated by ice, and this could lead to the presence of reionization sources in submillimeter source catalogs. Submillimeter sources not detected at 24 micron in the GOODS-N field are examined. Two candidate reionization sources are identified at 3.6 micron through possible Gunn-Peterson saturation in the Z band.

C. C. Dudley; M. Imanishi; P. R. Maloney

2006-02-15T23:59:59.000Z

238

Coal combustion products (CCPs  

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

combustion products (CCPs) combustion products (CCPs) are solid materials produced when coal is burned to generate electricity. Since coal provides the largest segment of U.S. electricity generation (45 percent in 2010), finding a sustainable solution for CCPs is an important environmental challenge. When properly managed, CCPs offer society environmental and economic benefits without harm to public health and safety. Research supported by the U.S. Department of Energy's (DOE) Office of Fossil Energy (FE) has made an important contribution in this regard. Fossil Energy Research Benefits Coal Combustion Products Fossil Energy Research Benefits

239

Gas turbine combustion instability  

DOE Green Energy (OSTI)

Combustion oscillations are a common problem in development of LPM (lean premix) combustors. Unlike earlier, diffusion style combustors, LPM combustors are especially susceptible to oscillations because acoustic losses are smaller and operation near lean blowoff produces a greater combustion response to disturbances in reactant supply, mixing, etc. In ongoing tests at METC, five instability mechanisms have been identified in subscale and commercial scale nozzle tests. Changes to fuel nozzle geometry showed that it is possible to stabilize combustion by altering the timing of the feedback between acoustic waves and the variation in heat release.

Richards, G.A.; Lee, G.T.

1996-09-01T23:59:59.000Z

240

Amplified Inception of European Little Ice Age by Sea Ice–Ocean–Atmosphere Feedbacks  

Science Conference Proceedings (OSTI)

The inception of the Little Ice Age (~1400–1700 AD) is believed to have been driven by an interplay of external forcing and climate system internal variability. While the hemispheric signal seems to have been dominated by solar irradiance and ...

Flavio Lehner; Andreas Born; Christoph C. Raible; Thomas F. Stocker

2013-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Amplified inception of European Little Ice Age by sea ice-ocean-atmosphere feedbacks  

Science Conference Proceedings (OSTI)

The inception of the Little Ice Age (~1400-1700 AD) is believed to have been driven by an interplay of external forcing and climate system-internal variability. While the hemispheric signal seems to have been dominated by solar irradiance and ...

Flavio Lehner; Andreas Born; Christoph C. Raible; Thomas F. Stocker

242

Photo of Spray Combustion Chamber  

Science Conference Proceedings (OSTI)

NIST Spray Combustion Chamber. NIST, National Institute of Standards and Technology, Material Measurement Laboratory, ...

2013-07-15T23:59:59.000Z

243

Four Lectures on Turbulent Combustion  

E-Print Network (OSTI)

Four Lectures on Turbulent Combustion N. Peters Institut f¨ur Technische Mechanik RWTH Aachen Turbulent Combustion: Introduction and Overview 1 1.1 Moment Methods in Modeling Turbulence with Combustion and Velocity Scales . . . . . . . . . . . 11 1.4 Regimes in Premixed Turbulent Combustion

Peters, Norbert

244

Sandia Combustion Research: Technical review  

SciTech Connect

This report contains reports from research programs conducted at the Sandia Combustion Research Facility. Research is presented under the following topics: laser based diagnostics; combustion chemistry; reacting flow; combustion in engines and commercial burners; coal combustion; and industrial processing. Individual projects were processed separately for entry onto the DOE databases.

NONE

1995-07-01T23:59:59.000Z

245

A combustion model for IC engine combustion simulations with multi-component fuels  

Science Conference Proceedings (OSTI)

Reduced chemical kinetic mechanisms for the oxidation of representative surrogate components of a typical multi-component automotive fuel have been developed and applied to model internal combustion engines. Starting from an existing reduced mechanism for primary reference fuel (PRF) oxidation, further improvement was made by including additional reactions and by optimizing reaction rate constants of selected reactions. Using a similar approach to that used to develop the reduced PRF mechanism, reduced mechanisms for the oxidation of n-tetradecane, toluene, cyclohexane, dimethyl ether (DME), ethanol, and methyl butanoate (MB) were built and combined with the PRF mechanism to form a multi-surrogate fuel chemistry (MultiChem) mechanism. The final version of the MultiChem mechanism consists of 113 species and 487 reactions. Validation of the present MultiChem mechanism was performed with ignition delay time measurements from shock tube tests and predictions by comprehensive mechanisms available in the literature. A combustion model was developed to simulate engine combustion with multi-component fuels using the present MultiChem mechanism, and the model was applied to simulate HCCI and DI engine combustion. The results show that the present multi-component combustion model gives reliable performance for combustion predictions, as well as computational efficiency improvements through the use of reduced mechanism for multi-dimensional CFD simulations. (author)

Ra, Youngchul; Reitz, Rolf D. [Engine Research Center, University of Wisconsin-Madison (United States)

2011-01-15T23:59:59.000Z

246

Engine Combustion & Efficiency - FEERC  

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

Engine Combustion & Efficiency Engine Combustion & Efficiency ORNL currently and historically supports the U.S. DOE on multi-cylinder and vehicle applications of diesel combustion, lean burn gasoline combustion, and low temperature combustion processes, and performs principal research on efficiency enabling technologies including emission controls, thermal energy recovery, and bio-renewable fuels. Research areas span from fundamental concepts to engine/vehicle integration and demonstration with a particular emphasis on the following areas: Thermodynamics for identifying and characterizing efficiency opportunities for engine-systems as well as the development of non-conventional combustion concepts for reducing fundamental combustion losses. Nonlinear sciences for improving the physical understanding and

247

Ice Cream with a Heart Create a new Clemson Ice  

E-Print Network (OSTI)

Ice Cream with a Heart Contest! Create a new Clemson Ice Cream flavor! Raise money for your favorite charity! Win a free Clemson Ice Cream party for your organization! Enter at www organizations. The contest is called Ice Cream with a Heart and its purpose is to help student organizations

Bolding, M. Chad

248

Spontaneous Human Combustion  

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

Spontaneous Human Combustion Spontaneous Human Combustion Name: S. Phillips. Age: N/A Location: N/A Country: N/A Date: N/A Question: One of our 8th grade students has tried to find information in our library about spontaneous human combustion, but to no avail. Could you tell us where we might locate a simple reference, or provide some in information about this subject for him. Replies: Sorry, but this is definitely "fringe science"...try asking in bookstores. I seem to recall one of those "believe it or not" type of TV shows did an episode on spontaneous human combustion a few years ago in which they reported on some British scientists who investigated this purported phenomenon. Remember that people (back in the Dark Ages, and before) used to believe in "spontaneous generation" of certain plants and animals because they were not aware of the reproduction methods used by those plants and animals.

249

IN SITU COMBUSTION  

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

a combustion zone that moves through the formation toward production wells, providing a steam drive and an intense gas drive for the recovery of oil. This process is sometimes...

250

NETL: Combustion Technologies  

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

Combustion Technology (June 15-16, 1999) Animal Waste Remediation Roundtable PDF-78KB Advanced Coal-Based Power and Environmental Systems '98 Conference (July 21-23, 1998)...

251

Just the Basics: Combustion  

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

diesel fuel, transportation- based combustion accounts for the majority of our fossil fuel use in the United States, which has led the U.S. to demand a lot of imported oil....

252

METC Combustion Research Facility  

SciTech Connect

The objective of the Morgantown Energy Technology Center (METC) high pressure combustion facility is to provide a mid-scale facility for combustion and cleanup research to support DOE`s advanced gas turbine, pressurized, fluidized-bed combustion, and hot gas cleanup programs. The facility is intended to fill a gap between lab scale facilities typical of universities and large scale combustion/turbine test facilities typical of turbine manufacturers. The facility is now available to industry and university partners through cooperative programs with METC. High pressure combustion research is also important to other DOE programs. Integrated gasification combined cycle (IGCC) systems and second-generation, pressurized, fluidized-bed combustion (PFBC) systems use gas turbines/electric generators as primary power generators. The turbine combustors play an important role in achieving high efficiency and low emissions in these novel systems. These systems use a coal-derived fuel gas as fuel for the turbine combustor. The METC facility is designed to support coal fuel gas-fired combustors as well as the natural gas fired combustor used in the advanced turbine program.

Halow, J.S.; Maloney, D.J.; Richards, G.A.

1993-11-01T23:59:59.000Z

253

Coal combustion system  

SciTech Connect

In a coal combustion system suitable for a gas turbine engine, pulverized coal is transported to a rich zone combustor and burned at an equivalence ratio exceeding 1 at a temperature above the slagging temperature of the coal so that combustible hot gas and molten slag issue from the rich zone combustor. A coolant screen of water stretches across a throat of a quench stage and cools the combustible gas and molten slag to below the slagging temperature of the coal so that the slag freezes and shatters into small pellets. The pelletized slag is separated from the combustible gas in a first inertia separator. Residual ash is separated from the combustible gas in a second inertia separator. The combustible gas is mixed with secondary air in a lean zone combustor and burned at an equivalence ratio of less than 1 to produce hot gas motive at temperature above the coal slagging temperature. The motive fluid is cooled in a dilution stage to an acceptable turbine inlet temperature before being transported to the turbine.

Wilkes, Colin (Lebanon, IN); Mongia, Hukam C. (Carmel, IN); Tramm, Peter C. (Indianapolis, IN)

1988-01-01T23:59:59.000Z

254

Sandia Combustion Research Program  

DOE Green Energy (OSTI)

During the late 1970s, in response to a national energy crisis, Sandia proposed to the US Department of Energy (DOE) a new, ambitious program in combustion research. Shortly thereafter, the Combustion Research Facility (CRF) was established at Sandia's Livermore location. Designated a ''user facility,'' the charter of the CRF was to develop and maintain special-purpose resources to support a nationwide initiative-involving US inventories, industry, and national laboratories--to improve our understanding and control of combustion. This report includes descriptions several research projects which have been simulated by working groups and involve the on-site participation of industry scientists. DOE's Industry Technology Fellowship program, supported through the Office of Energy Research, has been instrumental in the success of some of these joint efforts. The remainder of this report presents results of calendar year 1988, separated thematically into eleven categories. Referred journal articles appearing in print during 1988 and selected other publications are included at the end of Section 11. Our traditional'' research activities--combustion chemistry, reacting flows, diagnostics, engine and coal combustion--have been supplemented by a new effort aimed at understanding combustion-related issues in the management of toxic and hazardous materials.

Johnston, S.C.; Palmer, R.E.; Montana, C.A. (eds.) [eds.

1988-01-01T23:59:59.000Z

255

Pulsed jet combustion generator for premixed charge engines  

DOE Patents (OSTI)

A method and device for generating pulsed jets which will form plumes comprising eddie structures, which will entrain a fuel/air mixture from the head space of an internal combustion engine, and mixing this fuel/air mixture with a pre-ignited fuel/air mixture of the plumes thereby causing combustion of the reactants to occur within the interior of the eddie structures.

Oppenheim, A. K. (Berkeley, CA); Stewart, H. E. (Alameda, CA); Hom, K. (Hercules, CA)

1990-01-01T23:59:59.000Z

256

Fish Smother Under Ice  

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

Smother Under Ice Smother Under Ice A BULLETIN FOR THE CHICAGO PUBLIC SCHOOLS DESIGNED FOR INCLUSION IN THE WEEKLY ANNOUNCEMENT SENT OUT FROM THE OFFICE OF SUPT. WILLIAM H. JOHNSON Clayton F. Smith, President Roberts Mann, Superintendent of Conservation February 1, 1945 Nature Bulletin No. 1 FOREST PRESERVE NOTES Grown-ups, who used to kive on a farm or in a small town, are fond of talking about the old-fashioned winters "when I was a boy" and the winters that grandpa used to tell about. Well, one would have to go back a long, long time to find a winter as severe as this one. FISH SMOTHER UNDER ICE Lakes and streams breathe the same as living things. When they are covered with ice and snow they cannot get air and they much hold their breath until the ice thaws. While they are holding their breath the oxygen in the water is gradually used up by the living things sealed up in it -- fish, plants "bugs", snails, and hosts of microscopic life. If the ice lasts long enough, these living things die one after another as each kind reaches the point where it cannot stand any further oxygen starvation. Sometimes temporary relief is given by rains and melting snow that bring fresh, serated water under the ice, but no method of artificial respiration has been found that works. Sometimes, too, when water plants get enough sunlight through clear ice they produce small amounts of oxygen and delay the suffocation of the fish, etc.; but when snow and cloudy ice cuts off the light this does not happen.

257

Vortex ice in nanostructured superconductors  

SciTech Connect

We demonstrate using numerical simulations of nanostructured superconductors that it is possible to realize vortex ice states that are analogous to square and kagome ice. The system can be brought into a state that obeys either global or local ice rules by applying an external current according to an annealing protocol. We explore the breakdown of the ice rules due to disorder in the nanostructure array and show that in square ice, topological defects appear along grain boundaries, while in kagome ice, individual defects appear. We argue that the vortex system offers significant advantages over other artificial ice systems.

Reichhardt, Charles [Los Alamos National Laboratory; Reichhardt, Cynthia J [Los Alamos National Laboratory; Libal, Andras J [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

258

Coal Combustion Products | Department of Energy  

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

Combustion Products Coal Combustion Products Coal combustion products (CCPs) are solid materials produced when coal is burned to generate electricity. Since coal provides the...

259

Building America Expert Meeting: Combustion Safety | Department...  

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

Meeting: Combustion Safety Building America Expert Meeting: Combustion Safety This is a meeting overview of "The Best Approach to Combustion Safety in a Direct Vent World, held...

260

Coal Combustion Products | Department of Energy  

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

Coal Combustion Products Coal Combustion Products Coal combustion products (CCPs) are solid materials produced when coal is burned to generate electricity. Since coal provides the...

Note: This page contains sample records for the topic "ice internal combustion" 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

Ignition of Combustion Modified Polyurethane Foam  

E-Print Network (OSTI)

Modeling of smoldering combustion propagation," Prog. Energysmoldering to flaming combustion of horizontally orientedThermal decomposition, combustion and fire-retardancy of

Putzeys, Olivier; Fernandez-Pello, Carlos; Urban, Dave L.

2005-01-01T23:59:59.000Z

262

A Generalized Pyrolysis Model for Combustible Solids  

E-Print Network (OSTI)

decomposition fronts in wood,” Combustion and Flame 139: 16–dynamics modeling of wood combustion,” Fire Safety Journalduring the pyrolysis of wood,” Combustion and Flame 17: 79–

Lautenberger, Chris

2007-01-01T23:59:59.000Z

263

Enlaces de Vehículos de Combustible Fexible  

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

combustible flexible provista por el Alternative Fuels & Advanced Vehicles Data Center (AFDC) del DOE Vehculos de Combustible Flexible: Una alternativa de combustible renovable...

264

DIFFRACTION STUDIES OF ICE Alexe BOSAK  

E-Print Network (OSTI)

as ice-nine [K. Vonnegut, Cat's Cradle] #12;Phase diagram of water #12;Phase diagram of water Here we areDIFFRACTION STUDIES OF ICE Alexeï BOSAK European Synchrotron Radiation Facility #12;Ice as the mild threat ice Ih the only ice in the crust #12;Ice as the absolute weapon Ice IX : melting point 45.8°C

Titov, Anatoly

265

Prediction of Vessel Icing  

Science Conference Proceedings (OSTI)

Vessel icing from wave-generated spray is a severe hazard to expanded marine operations in high latitudes. Hardships in making observations during operations, combined with differences in vessel type and heading, have resulted in great ...

J. E. Overland; C. H. Pease; R. W. Preisendorfer; A. L. Comiskey

1986-12-01T23:59:59.000Z

266

Sublimation of Ice Crystals  

Science Conference Proceedings (OSTI)

Recent experiments on the sublimation of single crystals of ice in an atmosphere of air indicate that the sublimation rate is diffusion limited and initially solid prismatic crystals evolve into time-independent shapes similar to confocal ...

Jon Nelson

1998-03-01T23:59:59.000Z

267

Global Warming, Soot, Ice  

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

Global Warming, Soot, Ice Speaker(s): James Hansen Date: November 7, 2003 - 12:00pm Location: 90-3122 Irreversible "dangerous anthropogenic interference" with the climate system...

268

Global ice sheet modeling  

Science Conference Proceedings (OSTI)

The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed.

Hughes, T.J.; Fastook, J.L. [Univ. of Maine, Orono, ME (United States). Institute for Quaternary Studies

1994-05-01T23:59:59.000Z

269

Contractor SOW Template - ICE | Department of Energy  

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

SOW Template - ICE Contractor SOW Template - ICE Contractor SOW Template - ICE.pdf More Documents & Publications Contractor SOW Template - ICR Statement of Work (SOW) Template...

270

Combustible structural composites and methods of forming combustible structural composites  

DOE Patents (OSTI)

Combustible structural composites and methods of forming same are disclosed. In an embodiment, a combustible structural composite includes combustible material comprising a fuel metal and a metal oxide. The fuel metal is present in the combustible material at a weight ratio from 1:9 to 1:1 of the fuel metal to the metal oxide. The fuel metal and the metal oxide are capable of exothermically reacting upon application of energy at or above a threshold value to support self-sustaining combustion of the combustible material within the combustible structural composite. Structural-reinforcing fibers are present in the composite at a weight ratio from 1:20 to 10:1 of the structural-reinforcing fibers to the combustible material. Other embodiments and aspects are disclosed.

Daniels, Michael A. (Idaho Falls, ID); Heaps, Ronald J. (Idaho Falls, ID); Steffler, Eric D (Idaho Falls, ID); Swank, William D. (Idaho Falls, ID)

2011-08-30T23:59:59.000Z

271

The Tropical Warm Pool International Cloud Experiment  

Science Conference Proceedings (OSTI)

A comprehensive dataset describing tropical cloud systems and their environmental setting and impacts has been collected during the Tropical Warm Pool International Cloud Experiment (TWP-ICE) and Aerosol and Chemical Transport in Tropical ...

Peter T. May; James H. Mather; Geraint Vaughan; Keith N. Bower; Christian Jakob; Greg M. McFarquhar; Gerald G. Mace

2008-05-01T23:59:59.000Z

272

Thermal ignition combustion system  

DOE Patents (OSTI)

The thermal ignition combustion system comprises means for providing walls defining an ignition chamber, the walls being made of a material having a thermal conductivity greater than 20 W/m C and a specific heat greater than 480 J/kg C with the ignition chamber being in constant communication with the main combustion chamber, means for maintaining the temperature of the walls above a threshold temperature capable of causing ignition of a fuel, and means for conducting fuel to the ignition chamber. 8 figs.

Kamo, R.; Kakwani, R.M.; Valdmanis, E.; Woods, M.E.

1988-04-19T23:59:59.000Z

273

Vehicle Technologies Office: Advanced Combustion Engines  

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

Advanced Combustion Advanced Combustion Engines to someone by E-mail Share Vehicle Technologies Office: Advanced Combustion Engines on Facebook Tweet about Vehicle Technologies Office: Advanced Combustion Engines on Twitter Bookmark Vehicle Technologies Office: Advanced Combustion Engines on Google Bookmark Vehicle Technologies Office: Advanced Combustion Engines on Delicious Rank Vehicle Technologies Office: Advanced Combustion Engines on Digg Find More places to share Vehicle Technologies Office: Advanced Combustion Engines on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Advanced Combustion Engines Combustion Engines Emission Control Waste Heat Recovery Fuels & Lubricants Materials Technologies Advanced Combustion Engines

274

Vehicle Technologies Office: Combustion Engine Research  

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

Combustion Engine Combustion Engine Research to someone by E-mail Share Vehicle Technologies Office: Combustion Engine Research on Facebook Tweet about Vehicle Technologies Office: Combustion Engine Research on Twitter Bookmark Vehicle Technologies Office: Combustion Engine Research on Google Bookmark Vehicle Technologies Office: Combustion Engine Research on Delicious Rank Vehicle Technologies Office: Combustion Engine Research on Digg Find More places to share Vehicle Technologies Office: Combustion Engine Research on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Advanced Combustion Engines Combustion Engines Emission Control Waste Heat Recovery Fuels & Lubricants Materials Technologies Combustion Engine Research

275

Application and Practice of Regenerative Combustion Technology ...  

Science Conference Proceedings (OSTI)

Regenerative Combustion burning alternative to traditional flow control system is ... that regenerative combustion have many advantage in energy conservation ...

276

A Generalized Pyrolysis Model for Combustible Solids  

E-Print Network (OSTI)

different stages of combustion,” Biomass and Bioenergy 23:biomass pyrolysis,” to appear in Progress in Energy and Combustion

Lautenberger, Chris

2007-01-01T23:59:59.000Z

277

Reversed flow fluidized-bed combustion apparatus  

DOE Patents (OSTI)

The present invention is directed to a fluidized-bed combustion apparatus provided with a U-shaped combustion zone. A cyclone is disposed in the combustion zone for recycling solid particulate material. The combustion zone configuration and the recycling feature provide relatively long residence times and low freeboard heights to maximize combustion of combustible material, reduce nitrogen oxides, and enhance sulfur oxide reduction.

Shang, Jer-Yu (Fairfax, VA); Mei, Joseph S. (Morgantown, WV); Wilson, John S. (Morgantown, WV)

1984-01-01T23:59:59.000Z

278

Ice cream headache  

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

Ice cream headache Ice cream headache Name: fath Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: What causes an "ice cream headache"? Are they dangerous? What would happen if I induced an ice cream headache when I had a regular headache? Replies: This is really a neat question. I am certainly no expert on headaches, but it has a lot to do blood circulation in the sinuses and around and within the brain. Why do some people get them easily and other seem resistant? The cold might restrict blood flow which is the basis for the problem. An Ice cream headache can be turned "on" or "off" by adjusting the rate of consumption, Slurpees work best, so really cold stuff enhances the effect. Are there stages: cold sensation, lingering headache, subsiding headache, warming, etc? Does the cold actually create similar headache "conditions" or does the brain confused cause it cannot directly feel pain? The difference in people is probably due to differences in arteriole branching and general circulation. In my experience smokers get worse headaches than nonsmokers of the same age. Do you find a similar trend? I am trying to stimulate discussion!

279

Packed Bed Combustion: An Overview  

E-Print Network (OSTI)

Packed Bed Combustion: An Overview William Hallett Dept. of Mechanical Engineering Université d'Ottawa - University of Ottawa #12;Packed Bed Combustion - University of Ottawa - CICS 2005 Introduction air fuel feedproducts xbed grate Packed Bed Combustion: fairly large particles of solid fuel on a grate, air supplied

Hallett, William L.H.

280

Superheated fuel injection for combustion of liquid-solid slurries  

DOE Patents (OSTI)

A method and device for obtaining, upon injection, flash evaporation of a liquid in a slurry fuel to aid in ignition and combustion. The device is particularly beneficial for use of coal-water slurry fuels in internal combustion engines such as diesel engines and gas turbines, and in external combustion devices such as boilers and furnaces. The slurry fuel is heated under pressure to near critical temperature in an injector accumulator, where the pressure is sufficiently high to prevent boiling. After injection into a combustion chamber, the water temperature will be well above boiling point at a reduced pressure in the combustion chamber, and flash boiling will preferentially take place at solid-liquid surfaces, resulting in the shattering of water droplets and the subsequent separation of the water from coal particles. This prevents the agglomeration of the coal particles during the subsequent ignition and combustion process, and reduces the energy required to evaporate the water and to heat the coal particles to ignition temperature. The overall effect will be to accelerate the ignition and combustion rates, and to reduce the size of the ash particles formed from the coal.

Robben, Franklin A. (Berkeley, CA)

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Superheated fuel injection for combustion of liquid-solid slurries  

DOE Patents (OSTI)

A method and device are claimed for obtaining, upon injection, flash evaporation of a liquid in a slurry fuel to aid in ignition and combustion. The device is particularly beneficial for use of coal-water slurry fuels in internal combustion engines such as diesel engines and gas turbines, and in external combustion devices such as boilers and furnaces. The slurry fuel is heated under pressure to near critical temperature in an injector accumulator, where the pressure is sufficiently high to prevent boiling. After injection into a combustion chamber, the water temperature will be well above boiling point at a reduced pressure in the combustion chamber, and flash boiling will preferentially take place at solid-liquid surfaces, resulting in the shattering of water droplets and the subsequent separation of the water from coal particles. This prevents the agglomeration of the coal particles during the subsequent ignition and combustion process, and reduces the energy required to evaporate the water and to heat the coal particles to ignition temperature. The overall effect will be to accelerate the ignition and combustion rates, and to reduce the size of the ash particles formed from the coal. 2 figs., 2 tabs.

Robben, F.A.

1984-10-19T23:59:59.000Z

282

Fragments, Combustion and Earthquakes  

E-Print Network (OSTI)

This paper is devoted to show the advantages of introducing a geometric viewpoint and a non extensive formulation in the description of apparently unrelated phenomena: combustion and earthquakes. Here, it is shown how the introduction of a fragmentation analysis based on that formulation leads to find a common point for description of these phenomena

Oscar Sotolongo-Costa; Antonio Posadas

2005-03-16T23:59:59.000Z

283

Renewable Energy Laboratory Development for Biofuels Advanced Combustion Studies  

DOE Green Energy (OSTI)

The research advanced fundamental science and applied engineering for increasing the efficiency of internal combustion engines and meeting emissions regulations with biofuels. The project developed a laboratory with new experiments and allowed investigation of new fuels and their combustion and emissions. This project supports a sustainable domestic biofuels and automotive industry creating economic opportunities across the nation, reducing the dependence on foreign oil, and enhancing U.S. energy security. The one year period of research developed fundamental knowledge and applied technology in advanced combustion, emissions and biofuels formulation to increase vehicle's efficiency. Biofuelsâ?? combustion was investigated in a Compression Ignition Direct Injection (DI) to develop idling strategies with biofuels and an Indirect Diesel Injection (IDI) intended for auxiliary power unit.

Soloiu, Valentin

2012-03-31T23:59:59.000Z

284

SIAM Conference on Numerical Combustion Sedona, AZ May 9-12, 2004  

Science Conference Proceedings (OSTI)

The Society for Industrial and Applied Mathematics hosted the Tenth International Conference on Numerical Combustion held May 9-12, 2004 in Sedona, Arizona. This distinguished conference series began in 1985 in Sophia Antipolis, France and was followed by conferences in San Francisco, California (1987), Juan les Pins, France (1989), St. Petersburg Beach, Florida (1991), Garmisch, Germany (1993), New Orleans, Louisiana (1996), York, England (1998), Amelia Island, Florida (2000), and Sorrento, Italy (2002). SIAM is widely recognized as the originator and the U.S. anchor of this important meeting whose topics concerns the applied mathematics and computation associated with combustion and reactive flow. In particular, the International Numerical Combustion Symposiums have become one of the international major venues for research on direct simulation and modeling turbulent reacting flow. It is also one of the major international venues for theoretical work in reacting flows. This meeting drew approximately 200 participants from 30 countries whose research included the topics in turbulence, kinetics, detonation, flames, pollution, microgravity, micro-combustion, ignition, applications of parallel processing, tera-scale computation of combustion applications, material synthesis, droplets and sprays, heterogeneous combustion, energetic materials (propellants and explosives), engine and furnace combustion, fires, numerical methods and, software engineering for combustion applications.

None

2004-09-23T23:59:59.000Z

285

Recent Great Lakes Ice Trends  

Science Conference Proceedings (OSTI)

Analysis of ice observations made by cooperative observers from shoreline stations reveals significant changes in the ice season on the North American Great Lakes over the past 35years. Although the dataset is highly inhomogeneous and year-to-...

Howard P. Hanson; Claire S. Hanson; Brenda H. Yoo

1992-05-01T23:59:59.000Z

286

ARM - Measurement - Ice water content  

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

to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Ice water content The concentration (massvol) of ice water particles in a cloud....

287

A recent bifurcation in Arctic sea-ice cover  

E-Print Network (OSTI)

There is ongoing debate over whether Arctic sea-ice has already passed a 'tipping point', or whether it will do so in future, with several recent studies arguing that the loss of summer sea ice does not involve a bifurcation because it is highly reversible in models. Recently developed methods can detect and sometimes forewarn of bifurcations in time-series data, hence we applied them to satellite data for Arctic sea-ice cover. Here we show that a new low ice cover state has appeared from 2007 onwards, which is distinct from the normal state of seasonal sea ice variation, suggesting a bifurcation has occurred from one attractor to two. There was no robust early warning signal of critical slowing down prior to this bifurcation, consistent with it representing the appearance of a new ice cover state rather than the loss of stability of the existing state. The new low ice cover state has been sampled predominantly in summer-autumn and seasonal forcing combined with internal climate variability are likely respons...

Livina, Valerie N

2012-01-01T23:59:59.000Z

288

Method of improving fuel combustion efficiency  

Science Conference Proceedings (OSTI)

This patent describes a method of operating an internal combustion engine. It comprises: vaporizing a gasoline-alcohol fuel mixture by heating it in a chamber to above the final boiling point of the gasoline at one atmosphere pressure in the absence of air to form a vaporized gasoline-alcohol fuel mixture and immediately mixing the vaporized gasoline-alcohol fuel mixture with air in a carburetor without forming liquid droplets in the mixture and then immediately combusting the mixture in the engine in substantially a vaporized state. The gasoline comprises a mixture of hydrocarbons: the mixture having an intermediate carbon range relative to c{sub 4}-C{sub 12} fuel.

Talbert, W.L.

1990-09-11T23:59:59.000Z

289

Scaling properties of sea ice deformation from buoy dispersion P. Rampal,1,2  

E-Print Network (OSTI)

in a gas or two people in a crowd, two nearby pieces of sea ice gradually move apart and disperse [MartinScaling properties of sea ice deformation from buoy dispersion analysis P. Rampal,1,2 J. Weiss,1 D. The deformation is derived from the dispersion of pairs of drifting buoys, using the IABP (International Arctic

Lindsay, Ron

290

Dry Ice vs. Pipette Experiment Description  

E-Print Network (OSTI)

Dry Ice vs. Pipette Experiment Description Dry ice (solid) is put into the bulb of a pipette, plastic pipette 1 ice cube sized piece of dry ice Butter knife (or some object to break dry ice) Gloves (surgical gloves will not work, they must protect hands from dry ice) Safety glasses for demonstrator

291

Ice maker safety control  

Science Conference Proceedings (OSTI)

In a refrigeration apparatus including an evaporator, a defrost heater for defrosting the evaporator, a defrost thermostat having a switch for de-energizing the defrost heater at a preselected high temperature of the evaporator, and an ice making apparatus having a mold, a mold heater, and a control circuit controllably energized the mold heater, a safety control for the ice making apparatus is described comprising: means for thermally coupling the defrost thermostat with the mold; and means electrically connecting the defrost thermostat switch with the control circuit for de-energizing the mold heater at a preselected high temperature of the mold to prevent overheating thereof.

Linstromberg, W.J.

1988-05-03T23:59:59.000Z

292

Searching for Cosmic Accelerators via IceCube  

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

Searching for Cosmic Searching for Cosmic Accelerators via IceCube Searching for Cosmic Accelerators via IceCube Berkeley Lab Researchers Part of an International Hunt November 21, 2013 Lynn Yarris, lcyarris@lbl.gov, 510.486.5375 Bert.jpg This event display shows "Bert," one of two neutrino events discovered at IceCube whose energies exceeded one petaelectronvolt (PeV). The colors show when the light arrived, with reds being the earliest, succeeded by yellows, greens and blues. The size of the circle indicates the number of photons observed. (Courtesy of IceCube Lab) In our universe there are particle accelerators 40 million times more powerful than the Large Hadron Collider (LHC) at CERN. Scientists don't know what these cosmic accelerators are or where they are located, but new

293

Ice–Ice Collisions: An Ice Multiplication Process in Atmospheric Clouds  

Science Conference Proceedings (OSTI)

Ice in atmospheric clouds undergoes complex physical processes, interacting especially with radiation, which leads to serious impacts on global climate. After their primary production, atmospheric ice crystals multiply extensively by secondary ...

J.-I. Yano; V. T. J. Phillips

2011-02-01T23:59:59.000Z

294

CYCLE-BY-CYCLE COMBUSTION VARIATIONS IN SPARK-IGNITED ENGINES Engineering Technology Division, Oak Ridge National Laboratory, Oak Ridge TN 37831-8088 USA  

E-Print Network (OSTI)

CYCLE-BY-CYCLE COMBUSTION VARIATIONS IN SPARK-IGNITED ENGINES C.S. DAW Engineering Technology-2053 USA ABSTRACT Under constant nominal operating conditions, internal combustion engines can exhibit sub- stantial variation in combustion efficiency from one cycle to the next. Previous researchers have attempted

Tennessee, University of

295

No Slide Title  

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

vehicle with internal combustion engine (ICE) only 3 Comparison of Vehicle Technology * Hybrid Electric Vehicle (HEV) with ICE and electric drive * Does not plug in to electric...

296

THE SPITZER ICE LEGACY: ICE EVOLUTION FROM CORES TO PROTOSTARS  

Science Conference Proceedings (OSTI)

Ices regulate much of the chemistry during star formation and account for up to 80% of the available oxygen and carbon. In this paper, we use the Spitzer c2d Legacy ice survey, complimented with data sets on ices in cloud cores and high-mass protostars, to determine standard ice abundances and to present a coherent picture of the evolution of ices during low- and high-mass star formation. The median ice composition H{sub 2}O:CO:CO{sub 2}:CH{sub 3}OH:NH{sub 3}:CH{sub 4}:XCN is 100:29:29:3:5:5:0.3 and 100:13:13:4:5:2:0.6 toward low- and high-mass protostars, respectively, and 100:31:38:4:-:-:- in cloud cores. In the low-mass sample, the ice abundances with respect to H{sub 2}O of CH{sub 4}, NH{sub 3}, and the component of CO{sub 2} mixed with H{sub 2}O typically vary by ice components, XCN, and CH{sub 3}OH vary by factors 2-10 between the lower and upper quartile. The XCN band correlates with CO, consistent with its OCN{sup -} identification. The origin(s) of the different levels of ice abundance variations are constrained by comparing ice inventories toward different types of protostars and background stars, through ice mapping, analysis of cloud-to-cloud variations, and ice (anti-)correlations. Based on the analysis, the first ice formation phase is driven by hydrogenation of atoms, which results in an H{sub 2}O-dominated ice. At later prestellar times, CO freezes out and variations in CO freezeout levels and the subsequent CO-based chemistry can explain most of the observed ice abundance variations. The last important ice evolution stage is thermal and UV processing around protostars, resulting in CO desorption, ice segregation, and the formation of complex organic molecules. The distribution of cometary ice abundances is consistent with the idea that most cometary ices have a protostellar origin.

Oeberg, Karin I. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02139 (United States); Boogert, A. C. Adwin [IPAC, NASA Herschel Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Pontoppidan, Klaus M. [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Van den Broek, Saskia; Van Dishoeck, Ewine F. [Leiden Observatory, Leiden University, 2300 RA Leiden (Netherlands); Bottinelli, Sandrine [Centre d'Etude Spatiale des Rayonnements (CESR), CNRS-UMR 5187, 31028 Toulouse Cedex 4 (France); Blake, Geoffrey A. [California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA 91125 (United States); Evans, Neal J. [Department of Astronomy, University of Texas at Austin, Austin, TX 78712 (United States)

2011-10-20T23:59:59.000Z

297

Observed Large-Scale Structures and Diabatic Heating and Drying Profiles during TWP-ICE  

Science Conference Proceedings (OSTI)

This study documents the characteristics of the large-scale structures and diabatic heating and drying profiles observed during the Tropical Warm Pool–International Cloud Experiment (TWP-ICE), which was conducted in January–February 2006 in ...

Shaocheng Xie; Timothy Hume; Christian Jakob; Stephen A. Klein; Renata B. McCoy; Minghua Zhang

2010-01-01T23:59:59.000Z

298

A Comparison of the Water Budgets between Clouds from AMMA and TWP-ICE  

Science Conference Proceedings (OSTI)

Two field campaigns, the African Monsoon Multidisciplinary Analysis (AMMA) and the Tropical Warm Pool–International Cloud Experiment (TWP-ICE), took place in 2006 near Niamey, Niger, and Darwin, Northern Territory, Australia, providing extensive ...

Xiping Zeng; Wei-Kuo Tao; Scott W. Powell; Robert A. Houze Jr.; Paul Ciesielski; Nick Guy; Harold Pierce; Toshihisa Matsui

2013-02-01T23:59:59.000Z

299

Coal Combustion Products Extension Program  

SciTech Connect

This final project report presents the activities and accomplishments of the ''Coal Combustion Products Extension Program'' conducted at The Ohio State University from August 1, 2000 to June 30, 2005 to advance the beneficial uses of coal combustion products (CCPs) in highway and construction, mine reclamation, agricultural, and manufacturing sectors. The objective of this technology transfer/research program at The Ohio State University was to promote the increased use of Ohio CCPs (fly ash, FGD material, bottom ash, and boiler slag) in applications that are technically sound, environmentally benign, and commercially competitive. The project objective was accomplished by housing the CCP Extension Program within The Ohio State University College of Engineering with support from the university Extension Service and The Ohio State University Research Foundation. Dr. Tarunjit S. Butalia, an internationally reputed CCP expert and registered professional engineer, was the program coordinator. The program coordinator acted as liaison among CCP stakeholders in the state, produced information sheets, provided expertise in the field to those who desired it, sponsored and co-sponsored seminars, meetings, and speaking at these events, and generally worked to promote knowledge about the productive and proper application of CCPs as useful raw materials. The major accomplishments of the program were: (1) Increase in FGD material utilization rate from 8% in 1997 to more than 20% in 2005, and an increase in overall CCP utilization rate of 21% in 1997 to just under 30% in 2005 for the State of Ohio. (2) Recognition as a ''voice of trust'' among Ohio and national CCP stakeholders (particularly regulatory agencies). (3) Establishment of a national and international reputation, especially for the use of FGD materials and fly ash in construction applications. It is recommended that to increase Ohio's CCP utilization rate from 30% in 2005 to 40% by 2010, the CCP Extension Program be expanded at OSU, with support from state and federal agencies, utilities, trade groups, and the university, to focus on the following four specific areas of promise: (a) Expanding use in proven areas (such as use of fly ash in concrete); (b) Removing or reducing regulatory and perceptual barriers to use (by working in collaboration with regulatory agencies); (c) Developing new or under-used large-volume market applications (such as structural fills); and (d) Placing greater emphasis on FGD byproducts utilization.

Tarunjit S. Butalia; William E. Wolfe

2006-01-11T23:59:59.000Z

300

NETL: Combustion Technologies  

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

Abbreviations & Acronyms Abbreviations & Acronyms Reference Shelf Solicitations & Awards Abbreviations & Acronyms The Combustion Technologies Product uses a number of abbreviations and acronyms. This web page gives you a definition of frequently used terms, as follows: 1½-Generation PFBC -- A PFBC plant where the hot (about 1400ºF) PFBC exhaust gases are used as a vitiated air supply for a natural gas combustor supplying high-temperature gas (above 2000ºF) to a combustion turbine expander (synonym for "PFB-NGT"). 1st-Generation PFBC -- Commercial PFBC technology where an unfired low-temperature (below 1650ºF) ruggedized turbine expander expands PFBC exhaust gases (synonym for "PFB-EGT"). 2nd-Generation PFBC (see synonyms: "APFBC," "PFB-CGT") -- Advanced PFBC where a carbonizer (mild gasifier) provides hot (about 1400ºF) coal-derived synthetic fuel gas to a special topping combustor. The carbonizer char is burned in the PFBC, and the PFBC exhaust is used as a hot (about 1400ºF) vitiated air supply for the topping combustor. The syngas and vitiated air are burned in a topping combustor to provide high-temperature gas (above 1700ºF) to a combustion turbine expander.

Note: This page contains sample records for the topic "ice internal combustion" 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

NETL: Combustion Technologies  

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

Nebraska Public Power District's Sheldon Station with APFBC Technology Nebraska Public Power District's Sheldon Station with APFBC Technology FBC Repower APFBC AES Greenidge APFBC Dan River FBC, APFBC Four Corners CHIPPS H.F. Lee Products Summary Sheldon Summary APFBC Sheldon GFBCC Sheldon APFBC L.V. Sutton Contents: APFBC Repowering Project Summary Key Features Site Layout Performance Environmental Characteristics Cost Other Combustion Systems Repowering Study Links: A related study is underway that would repower Sheldon Unit 1 and Unit 2 with gasification fluidized-bed combined cycle technology (GFBCC). CLICK HERE to find out more about repowering the Sheldon station with GFBCC instead. APFBC Repowering Project Summary Click on picture to enlarge Advanced circulating pressurized fluidized-bed combustion combined cycle systems (APFBC) are systems with jetting-bed pressurized fluidized-bed (PFB) carbonizer/gasifier and circulating PFBC combustor. The PFB carbonizer and PFBC both operate at elevated pressures (10 to 30 times atmospheric pressure) to provide syngas for operating a gas turbine topping combustor giving high cycle energy efficiency. The remaining char from the PFB carbonizer is burned in the pressurized PFBC. The combustion gas from the PFB also feeds thermal energy to the gas turbine topping combustor. This provides combined cycle plant efficiency on coal by providing the opportunity to generate electricity using both high efficiency gas turbines and steam.

302

Hail ice impact on composite structures at glancing angles  

E-Print Network (OSTI)

investigation of high velocity ice impacts on woven carbon/and ice sphere. .by trailing ice fragments. ..

Funai, Sho

2012-01-01T23:59:59.000Z

303

Combustion Research Facility | A Department of Energy Office...  

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

Heavy-Duty Heavy-Duty Low-Temperature and Diesel Combustion HCCISCCI Engine Fundamentals Spray Combustion Automotive Low-Temperature Diesel Combustion DISI Combustion...

304

Measurement of spray combustion processes  

SciTech Connect

A free jet configuration was chosen for measuring noncombusting spray fields and hydrocarbon-air spray flames in an effort to develop computational models of the dynamic interaction between droplets and the gas phase and to verify and refine numerical models of the entire spray combustion process. The development of a spray combustion facility is described including techniques for laser measurements in spray combustion environments and methods for data acquisition, processing, displaying, and interpretation.

Peters, C.E.; Arman, E.F.; Hornkohl, J.O.; Farmer, W.M.

1984-04-01T23:59:59.000Z

305

Municipal Waste Combustion (New Mexico)  

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

This rule establishes requirements for emissions from, and design and operation of, municipal waste combustion units. "Municipal waste" means all materials and substances discarded from residential...

306

Image Content Engine (ICE)  

SciTech Connect

The Image Content Engine (ICE) is being developed to provide cueing assistance to human image analysts faced with increasingly large and intractable amounts of image data. The ICE architecture includes user configurable feature extraction pipelines which produce intermediate feature vector and match surface files which can then be accessed by interactive relational queries. Application of the feature extraction algorithms to large collections of images may be extremely time consuming and is launched as a batch job on a Linux cluster. The query interface accesses only the intermediate files and returns candidate hits nearly instantaneously. Queries may be posed for individual objects or collections. The query interface prompts the user for feedback, and applies relevance feedback algorithms to revise the feature vector weighting and focus on relevant search results. Examples of feature extraction and both model-based and search-by-example queries are presented.

Brase, J M

2007-03-26T23:59:59.000Z

307

Surface Melting over Ice Shelves and Ice Sheets as Assessed from Modeled Surface Air Temperatures  

Science Conference Proceedings (OSTI)

Summer surface melting plays an important role in the evolution of ice shelves and their progenitor ice sheets. To explore the magnitude of surface melt occurring over modern ice shelves and ice sheets in a climate scenario forced by ...

Jeremy G. Fyke; Lionel Carter; Andrew Mackintosh; Andrew J. Weaver; Katrin J. Meissner

2010-04-01T23:59:59.000Z

308

The Spitzer ice legacy: Ice evolution from cores to protostars  

E-Print Network (OSTI)

Ices regulate much of the chemistry during star formation and account for up to 80% of the available oxygen and carbon. In this paper, we use the Spitzer c2d ice survey, complimented with data sets on ices in cloud cores and high-mass protostars, to determine standard ice abundances and to present a coherent picture of the evolution of ices during low- and high-mass star formation. The median ice composition H2O:CO:CO2:CH3OH:NH3:CH4:XCN is 100:29:29:3:5:5:0.3 and 100:13:13:4:5:2:0.6 toward low- and high-mass protostars, respectively, and 100:31:38:4:-:-:- in cloud cores. In the low-mass sample, the ice abundances with respect to H2O of CH4, NH3, and the component of CO2 mixed with H2O typically vary by ice components, XCN and CH3OH vary by factors 2-10 between the lower and upper quartile. The XCN band correlates with CO, consistent with its OCN- identification. The origin(s) of the different levels of ice abundance variations are cons...

Oberg, Karin I; Pontoppidan, Klaus M; Broek, Saskia van den; van Dishoeck, Ewine F; Bottinelli, Sandrine; Blake, Geoffrey A; Evans, Neal J

2011-01-01T23:59:59.000Z

309

Ice slurry cooling research: Storage tank ice agglomeration and extraction  

DOE Green Energy (OSTI)

A new facility has been built to conduct research and development on important issues related to implementing ice slurry cooling technology. Ongoing studies are generating important information on the factors that influence ice particle agglomeration in ice slurry storage tanks. The studies are also addressing the development of methods to minimize and monitor agglomeration and improve the efficiency and controllability of tank extraction of slurry for distribution to cooling loads. These engineering issues impede the utilization of the ice slurry cooling concept that has been under development by various groups.

Kasza, K. [Argonne National Lab., IL (United States); Hayashi, Kanetoshi [NKK Corp., Kawasaki (Japan)

1999-08-01T23:59:59.000Z

310

Advanced Combustion Engine R&D: Goals, Strategies, and Top Accomplishments  

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

Although internal combustion engines have been used Although internal combustion engines have been used for more than a century, significant improvements in energy efficiency and emissions reduction are still possible. In fact, boosting the efficiency of internal combustion engines is one of the most promising and cost-effective approaches to increasing vehicle fuel economy over the next 30 years. The United States can cut its transportation fuel use 20%-40% through commercialization of advanced engines-resulting in greater economic, environmental, and energy security. Using these engines in hybrid and plug-in hybrid electric vehicles will enable even greater fuel savings benefits. The Advanced Combustion Engine R&D subprogram of the U.S. Department of Energy's Vehicle Technologies Program (VTP) is improving the fuel economy of

311

Closed loop air cooling system for combustion turbines  

DOE Patents (OSTI)

Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts. 1 fig.

Huber, D.J.; Briesch, M.S.

1998-07-21T23:59:59.000Z

312

Closed loop air cooling system for combustion turbines  

DOE Patents (OSTI)

Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts.

Huber, David John (North Canton, OH); Briesch, Michael Scot (Orlando, FL)

1998-01-01T23:59:59.000Z

313

Climate Impacts of Ice Nucleation  

SciTech Connect

Several different ice nucleation parameterizations in two different General Circulation Models are used to understand the effects of ice nucleation on the mean climate state, and the climate effect of aerosol perturbations to ice clouds. The simulations have different ice microphysical states that are consistent with the spread of observations. These different states occur from different parameterizations of the ice cloud nucleation processes, and feature different balances of homogeneous and heterogeneous nucleation. At reasonable efficiencies, consistent with laboratory measurements and constrained by the global radiative balance, black carbon has a small (-0.06 Wm?2) and not statistically significant climate effect. Indirect effects of anthropogenic aerosols on cirrus clouds occur mostly due to increases in homogeneous nucleation fraction as a consequence of anthropogenic sulfur emissions. The resulting ice indirect effects do not seem strongly dependent on the ice micro-physical balance, but are slightly larger for those states with less homogeneous nucleation in the base state. The total ice AIE is estimated at 0.26±0.09 Wm?2 (1? uncertainty). This represents an offset of 20-30% of the simulated total Aerosol Indirect Effect for ice and liquid clouds.

Gettelman, A.; Liu, Xiaohong; Barahona, Donifan; Lohmann, U.; Chen, Chih-Chieh

2012-10-19T23:59:59.000Z

314

Backhand tecniques in ice hockey.  

E-Print Network (OSTI)

??The main objective of this project based multimedia thesis is to show video material of how to use a backhand side of the ice hockey… (more)

Luoma, Matti

2012-01-01T23:59:59.000Z

315

Utilization ROLE OF COAL COMBUSTION  

E-Print Network (OSTI)

Center for Products Utilization ROLE OF COAL COMBUSTION PRODUCTS IN SUSTAINABLE CONSTRUCTION and Applied Science THE UNIVERSITY OF WISCONSIN - MILWAUKEE #12;ROLE OF COAL COMBUSTION PRODUCTS, Federal Highway Administration, Washington, DC., U.S.A. SYNOPSIS Over one hundred million tonnes of coal

Wisconsin-Milwaukee, University of

316

Method for in situ combustion  

DOE Patents (OSTI)

This invention relates to an improved in situ combustion method for the recovery of hydrocarbons from subterranean earth formations containing carbonaceous material. The method is practiced by penetrating the subterranean earth formation with a borehole projecting into the coal bed along a horizontal plane and extending along a plane disposed perpendicular to the plane of maximum permeability. The subterranean earth formation is also penetrated with a plurality of spaced-apart vertical boreholes disposed along a plane spaced from and generally parallel to that of the horizontal borehole. Fractures are then induced at each of the vertical boreholes which project from the vertical boreholes along the plane of maximum permeability and intersect the horizontal borehole. The combustion is initiated at the horizontal borehole and the products of combustion and fluids displaced from the earth formation by the combustion are removed from the subterranean earth formation via the vertical boreholes. Each of the vertical boreholes are, in turn, provided with suitable flow controls for regulating the flow of fluid from the combustion zone and the earth formation so as to control the configuration and rate of propagation of the combustion zone. The fractures provide a positive communication with the combustion zone so as to facilitate the removal of the products resulting from the combustion of the carbonaceous material.

Pasini, III, Joseph (Morgantown, WV); Shuck, Lowell Z. (Morgantown, WV); Overbey, Jr., William K. (Morgantown, WV)

1977-01-01T23:59:59.000Z

317

Quality Issues in Combustion LES  

Science Conference Proceedings (OSTI)

Combustion LES requires modelling of physics beyond the flow-field only. These additional models lead to further quality issues and an even stronger need to quantify simulation and modelling errors. We illustrate stability problems, the need for consistent ... Keywords: Combustion, Error landscape, LES, Large-Eddy simulation, Quality, Turbulence

A. M. Kempf; B. J. Geurts; T. Ma; M. W. Pettit; O. T. Stein

2011-10-01T23:59:59.000Z

318

Measurement Technology for Benchmark Spray Combustion ...  

Science Conference Proceedings (OSTI)

Benchmark Spray Combustion Database. ... A1, uncertainty budget for the fuel flow rate. A2, uncertainty budget for the combustion air flow rate. ...

2013-07-15T23:59:59.000Z

319

Turbulent Combustion Properties of Premixed Syngases  

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

Turbulent Combustion Properties of Premixed Syngases Title Turbulent Combustion Properties of Premixed Syngases Publication Type Journal Article Year of Publication 2009 Authors...

320

Hydrogen engine and combustion control process  

DOE Patents (OSTI)

Hydrogen engine with controlled combustion comprises suction means connected to the crankcase reducing or precluding flow of lubricating oil or associated gases into the combustion chamber.

Swain, Michael R. (Coral Gables, FL); Swain, Matthew N. (Miami, FL)

1997-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Improved Engine Design Through More Efficient Combustion ...  

Improved Engine Design Through More Efficient Combustion Simulations The Multi-Zone Combustion Model (MCM) is a software tool that enables ...

322

Advanced Computational Methods for Turbulence and Combustion...  

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

Advanced Computational Methods for Turbulence and Combustion Advanced Computational Methods for Turbulence and Combustion Bell.png Key Challenges: Development and application of...

323

Modeling of Ice Accretion on Wires  

Science Conference Proceedings (OSTI)

A time-dependent numerical model of ice accretion on wires, such as overhead conductors, is presented. Simulations of atmospheric icing are made with the model in order to examine the dependence of the accreted ice amount on atmospheric ...

Lasse Makkonen

1984-06-01T23:59:59.000Z

324

ICE Raids: Compounding Production, Contradiction, and Capitalism  

E-Print Network (OSTI)

is just a cheap way of boosting ICE ‘criminal alien’ arrestRegardless of whether or not ICE is motivated by maintainingWorkers in America: Factories and ICE Raids Produce Citizens

Reas, Elizabeth I

2009-01-01T23:59:59.000Z

325

Climate, Ocean and Sea Ice Modeling  

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

Climate, Ocean and Sea Ice Modeling (COSIM) Summary The COSIM project develops advanced ocean and ice models for evaluating the role of ocean and ice in high-latitude climate...

326

Virtual Floe Ice Drift Forecast Model Intercomparison  

Science Conference Proceedings (OSTI)

Both sea ice forecast models and methods to measure their skill are needed for operational sea ice forecasting. Two simple sea ice models are described and tested here. Four different measures of skill are also tested. The forecasts from the ...

Robert W. Grumbine

1998-09-01T23:59:59.000Z

327

Theory of amorphous ices  

E-Print Network (OSTI)

We use large-deviation theory to study nonequilibrium transitions between amorphous solids and liquid in an atomistic model of supercooled water. Along with nonequilibrium transitions between the ergodic liquid and two distinct amorphous solids, we establish coexistence between the two amorphous solids, a finding that is consistent with experiment. The phase diagram we predict includes a nonequilibrium triple point where the two amorphous phases and the liquid coexist. While the amorphous solids are long-lived and slowly-aging glasses, their melting leads quickly to the formation of ice. This irreversible behavior is demonstrated in our theoretical treatment and compared with experiment.

David T Limmer; David Chandler

2013-06-20T23:59:59.000Z

328

BISICLES Captures Details of Retreating Antarctic Ice  

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

BISICLES Captures Details of Retreating Antarctic Ice BISICLES Captures Details of Retreating Antarctic Ice March 30, 2013 | Tags: Climate Research, Hopper, Math & Computer Science...

329

Biogeochemistry in Sea Ice: CICE model developments  

SciTech Connect

Polar primary production unfolds in a dynamic sea ice environment, and the interactions of sea ice with ocean support and mediate this production. In spring, for example, fresh melt water contributes to the shoaling of the mixed layer enhancing ice edge blooms. In contrast, sea ice formation in the fall reduces light penetration to the upper ocean slowing primary production in marine waters. Polar biogeochemical modeling studies typically consider these types of ice-ocean interactions. However, sea ice itself is a biogeochemically active medium, contributing a significant and, possibly, essential source of primary production to polar regions in early spring and fall. Here we present numerical simulations using the Los Alamos Sea Ice Model (CICE) with prognostic salinity and sea ice biogeochemistry. This study investigates the relationship between sea ice multiphase physics and sea ice productivity. Of particular emphasis are the processes of gravity drainage, melt water flushing, and snow loading. During sea ice formation, desalination by gravity drainage facilitates nutrient exchange between ocean and ice maintaining ice algal blooms in early spring. Melt water flushing releases ice algae and nutrients to underlying waters limiting ice production. Finally, snow loading, particularly in the Southern Ocean, forces sea ice below the ocean surface driving an upward flow of nutrient rich water into the ice to the benefit of interior and freeboard communities. Incorporating ice microphysics in CICE has given us an important tool for assessing the importance of these processes for polar algal production at global scales.

Jeffery, Nicole [Los Alamos National Laboratory; Hunke, Elizabeth [Los Alamos National Laboratory; Elliott, Scott [Los Alamos National Laboratory; Turner, Adrian [Los Alamos National Laboratory

2012-06-18T23:59:59.000Z

330

Combustion in porous media  

DOE Green Energy (OSTI)

A 2.8-liter tube-shaped combustion vessel was constructed to study flame propagation and quenching in porous media. For this experiment, hydrogen-air flames propagating horizontally into abed of 6 mm diameter glass beads were studied. Measurements of pressure and temperature along the length of the tube were used to observe flame propagation of quenching. The critical hydrogen concentration for Hz-air mixtures was found to be 11.5%, corresponding to a critical Peclet number of Pe* = 37. This value is substantially less than the value of Pe* = 65 quoted in the literature, for example Babkin et al. (1991). It is hypothesized that buoyancy and a dependence of Pe on the Lewis number account for the discrepancy between these two results.

Dillon, J. [California Inst. of Technology, CA (US)

1999-09-01T23:59:59.000Z

331

NETL: Combustion Technologies  

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

Gas Turbines for APFBC Gas Turbines for APFBC FBC Repower Simple Description Detailed Description APFBC Specs GTs for APFBC Suited for Repowering Existing Power Plants with Advanced Pressurized Fluidized-Bed Combined Cycles APFBC combined cycles have high energy efficiency levels because they use modern, high-temperature, high-efficiency gas turbines as the core of a combined power cycle. This web page discusses a current U.S. Department of Energy project that is evaluating combustion turbines suited for repowering existing steam plants. The natural-gas-fueled version of the Siemens Westinghouse Power Corporation W501F. Modified versions of this gas turbine core are suited for operating in APFBC power plants. Contents: Introduction APFBC Repowering Considerations

332

Group combustion of liquid fuel in laminar spray jet  

SciTech Connect

The present study examines the global configuration, detailed structure, and combustion characteristic of sprays under various firing conditions represented by various principal parameters including group combustion number, fuel-air mass ratio, Reynolds number, and spray angle. A system of conservation equations of spray flames in an axisymmetric configuration is solved by a finite-difference method for n-Butylbenzen (C/sub 10/H/sub 14/). An extensive spray sensitivity study reveals remarkable insight into the group flame structure which can be adopted as a basic engineering criteria for spray flame classification. It can be used to develop practical guides for the design of atomizers and burners. Highlights of the study are described in the following. There are three principal spray group combustion modes that may occur independently in a spray burner. These combustion modes are external, internal and critical group combustion modes, according to the relative magnitude of the length of the flame and the spray jet. The external group flame, located outside the spray jet is deemed to be the principal combustion configuration of practical spray flame. Predicted spray structure of the external flame is found to be in good agreement with the experimental observations. In particular, axial and radial distributions of major spray variables, droplet size, number density of droplet, concentration of fuel and oxidizer, velocities, and temperature, together with the flame contour and jet boundary are in qualitative agreement with the laboratory scale kerosene spray flame reported by Onuma and coworkers (1974, 1976). The existence of an air deficient fuel rich combustible mixture in the spray core is expected to provoke significant thermal decomposition of the hydrocarbon and also facilitate the formation of soot and particles.

Kim, H.Y.

1982-01-01T23:59:59.000Z

333

Title: Radar-observed convective characteristics during TWP-ICE  

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

Title: Radar-observed convective characteristics during TWP-ICE Title: Radar-observed convective characteristics during TWP-ICE Schumacher, Courtney Texas A&M University Houze, Robert University of Washington May, Peter Bureau or Meteorology Research Centre Frederick, Kaycee Cetrone, Jasmine Vallgren, Andreas Category: Field Campaigns This poster will describe the radar dataset obtained in the Tropical Warm Pool International Cloud Experiment (TWP-ICE), which is to take place 20 January - 14 February 2006 in the vicinity of Darwin, Australia. We will describe the convective systems observed during the project by two scanning C-band Doppler radars, one of which will provide dual-polarization measurements, and ARM's vertically pointing cloud radar and lidar installations. In addition, we will discuss the potential for combining

334

Droplet Combustion and Non-Reactive Shear-Coaxial Jets with Transverse Acoustic Excitation  

E-Print Network (OSTI)

Related Works in Droplet Combustion . . . . . . . .of Acoustics on Droplet Combustion . . . . . . . . . . . .Fuel Droplet Combustion . . . . . . . . . . . . . . .

Teshome, Sophonias

2012-01-01T23:59:59.000Z

335

On the role of external combustion engines for on-site power generation  

SciTech Connect

Stationary external combustion engines are prime movers that have potential for becoming viable power generation machines in both the residential/commercial and industrial sectors. These large engines are being developed with the capability to employ alternative and/or non-scarce fuels. Energy sources under consideration include coal, coal derived liquids and gases, low-grade petroleum residues, biomass, and municipal wastes. Advantages of external combustion engines relative to conventional prime movers are: greater fuel efficiency, reduced environmental impacts (noise and emissions), and a high degree of fuel flexibility. External combustion engines include steam turbines, Stirling cycle engines, and externally-fired Brayton gas turbines. Among the various applications for external combustion engines are: total energy plants, ICES, industrial cogeneration, small municipal generating plants, and pumping stations. It is not necessary for all the heat supplied an external combustion engine to come from a single source. Various non-coal sources that can be used either independently or integrated with others to supply heat to external combustion engines include solar energy, municipal wastes, biomass, and geothermal. Stirling engine based systems are described. The development of the Stirling engine is briefly discussed. (MCW)

Holtz, R.E.; Uherka, K.L.

1979-01-01T23:59:59.000Z

336

ARM - Measurement - Cloud ice particle  

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

ice particle ice particle ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud ice particle Particles made of ice found in clouds. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments MET : Surface Meteorological Instrumentation Field Campaign Instruments REPLICATOR : Balloon-borne Ice Crystal Replicator CPI : Cloud Particle Imager CVI-AIR : Counterflow Virtual Impactor LEARJET : Lear Jet PARTIMG : Particle imager UAV-PROTEUS-MICRO : Proteus Cloud Microphysics Instruments

337

Dynamics of ice shelf rift propagation and iceberg calving inferred from geodetic and seismic observations  

E-Print Network (OSTI)

2. Ice Shelves . . . . . . . . . . . . . . . . .5. Ice Rheology . . . . . . . . . . . . . 6.vi Calving Glaciers and Ice

Bassis, Jeremy N.

2007-01-01T23:59:59.000Z

338

Particulate waste product combustion system  

SciTech Connect

An apparatus is described for incinerating combustion material within a fluidized bed, including the steps of: feeding the material into a fluidizing zone within which the bed is formed; introducing combustion supporting gas to the fluidizing zone in a plurality of inflow streams of different velocities insufficient to fluidize the material; continuously agitating the material to mechanically fluidize the same within the fluidizing zone during combustion and cause displacement of residual ash from the zone; and withdrawing the residual ash from a discharge location in the apparatus outside of the fluidizing zone.

Chastain, C.E.; King, D.R.

1986-05-20T23:59:59.000Z

339

EIA - International Energy Outlook 2010  

Gasoline and Diesel Fuel Update (EIA)

Emissions Emissions International Energy Outlook 2010 Graphic Data - Emissions Figure 103. World energy-related carbon dioxide emissions, 2007-2035 Figure 104. World energy-related carbon dioxide emissions by fuel type, 1990-2035 Figure 105. U.S.energy-related carbon dioxide emissions by fuel in IEO2009 and IEO2010, 2007, 2015, and 2035 Figure 106. Average annual growth in energy-related carbon dioxide emissions in OECD economies, 2007-2035 Figure 107. Average annual growth in energy-related carbon dioxide emissions in the Non-OECD economies, 2007-2035 Figure 108. World carbon dioxide emissions from liquids combustion, 1990-2035 Figure 109. World carbon dioxide emissions from natural gas combustion, 1990-2035 Figure 110. World carbon dioxide emissions from coal combustion, 1990-2035

340

COMBUSTION SYNTHESIS OF ADVANCED MATERIALS: PRINCIPLESAND APPLICATIONS  

E-Print Network (OSTI)

COMBUSTION SYNTHESIS OF ADVANCED MATERIALS: PRINCIPLESAND APPLICATIONS Arvind Varma, Alexander S. Gasless Combustion SynthesisFrom Elements B. Combustion Synthesis in Gas-Solid Systems C. Products of Thermite-vpe SHS D. Commercial Aspects IV. Theoretical Considerations A. Combustion Wave Propagation Theory

Mukasyan, Alexander

Note: This page contains sample records for the topic "ice internal combustion" 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

COMBUSTION ISSUES AND APPROACHES FOR CHEMICAL MICROTHRUSTERS  

E-Print Network (OSTI)

1 COMBUSTION ISSUES AND APPROACHES FOR CHEMICAL MICROTHRUSTERS Richard A. Yetter, Vigor Yang, Ming and the effects of downsizing on combustion performance. In particular, combustion of liquid nitromethane in a thruster combustion chamber with a volume of 108 mm3 and diameter of 5 mm was experimentally investigated

Yang, Vigor

342

The Combustion Institute 5001 Baum Boulevard  

E-Print Network (OSTI)

The Combustion Institute 5001 Baum Boulevard Pittsburgh, Pennsylvania, USA 15213-1851 CENTRAL STATES SECTION OF THE COMBUSTION INSTITUTE CALL FOR PAPERS TECHNICAL MEETING - SPRING 2002 COMBUSTION 7-9, 2002 #12;CENTRAL STATES SECTION OF THE COMBUSTION INSTITUTE www.cssci.org CALL FOR PAPERS

Tennessee, University of

343

Residential Wood Residential wood combustion (RWC) is  

E-Print Network (OSTI)

Residential Wood Combustion Residential wood combustion (RWC) is increasing in Europe because PM2.5. Furthermore, other combustion- related sources of OA in Europe may need to be reassessed. Will it affect global OA emission estimates? Combustion of biofuels is globally one of the major OA sources

344

Determination of Ice Water Path Over the ARM SGP Using Combined Surface and Satellite Datasets  

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

Determination of Ice Water Path Over the ARM SGP Using Determination of Ice Water Path Over the ARM SGP Using Combined Surface and Satellite Datasets J. Huang, M. M. Khaiyer, and P. W. Heck Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis and B. Lin Atmospheric Sciences National Aeronautics and Space Administration Langley Research Center Hampton, Virginia T.-F. Fan Science Applications International Corporation Hampton, Virginia Introduction Global information of cloud ice water path (IWP) is urgently needed for testing of global climate models (GCMs) and other applications. Accurate quantification of the IWP is essential for characterizing the hydrological and radiation budget. For example, the reflection of shortwave radiation by ice clouds reduces the solar energy reaching the earth's surface. Ice clouds can also trap the longwave radiation

345

High Efficiency, Clean Combustion  

DOE Green Energy (OSTI)

Energy use in trucks has been increasing at a faster rate than that of automobiles within the U.S. transportation sector. According to the Energy Information Administration (EIA) Annual Energy Outlook (AEO), a 23% increase in fuel consumption for the U.S. heavy duty truck segment is expected between 2009 to 2020. The heavy duty vehicle oil consumption is projected to grow between 2009 and 2050 while light duty vehicle (LDV) fuel consumption will eventually experience a decrease. By 2050, the oil consumption rate by LDVs is anticipated to decrease below 2009 levels due to CAFE standards and biofuel use. In contrast, the heavy duty oil consumption rate is anticipated to double. The increasing trend in oil consumption for heavy trucks is linked to the vitality, security, and growth of the U.S. economy. An essential part of a stable and vibrant U.S. economy is a productive U.S. trucking industry. Studies have shown that the U.S. gross domestic product (GDP) is strongly correlated to freight transport. Over 90% of all U.S. freight tonnage is transported by diesel power and over 75% is transported by trucks. Given the vital role that the trucking industry plays in the economy, improving the efficiency of the transportation of goods was a central focus of the Cummins High Efficient Clean Combustion (HECC) program. In a commercial vehicle, the diesel engine remains the largest source of fuel efficiency loss, but remains the greatest opportunity for fuel efficiency improvements. In addition to reducing oil consumption and the dependency on foreign oil, this project will mitigate the impact on the environment by meeting US EPA 2010 emissions regulations. Innovation is a key element in sustaining a U.S. trucking industry that is competitive in global markets. Unlike passenger vehicles, the trucking industry cannot simply downsize the vehicle and still transport the freight with improved efficiency. The truck manufacturing and supporting industries are faced with numerous challenges to reduce oil consumption and greenhouse gases, meet stringent emissions regulations, provide customer value, and improve safety. The HECC program successfully reduced engine fuel consumption and greenhouse gases while providing greater customer valve. The US EPA 2010 emissions standard poses a significant challenge for developing clean diesel powertrains that meet the DoE Vehicle Technologies Multi-Year Program Plan (MYPP) for fuel efficiency improvement while remaining affordable. Along with exhaust emissions, an emphasis on heavy duty vehicle fuel efficiency is being driven by increased energy costs as well as the potential regulation of greenhouse gases. An important element of the success of meeting emissions while significantly improving efficiency is leveraging Cummins component technologies such as fuel injection equipment, aftertreatment, turbomahcinery, electronic controls, and combustion systems. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 55% peak brake thermal efficiency for the engine plus aftertreatment system. The first step in developing high efficiency clean products has been supported by the DoE co-sponsored HECC program. The objectives of the HECC program are: (1) To design and develop advanced diesel engine architectures capable of achieving US EPA 2010 emission regulations while improving the brake thermal efficiency by 10% compared to the baseline (a state of the art 2007 production diesel engine). (2) To design and develop components and subsystems (fuel systems, air handling, controls, etc) to enable construction and development of multi-cylinder engines. (3) To perform an assessment of the commercial viability of the newly developed engine technology. (4) To specify fuel properties conducive to improvements in emissions, reliability, and fuel efficiency for engines using high-efficiency clean combustion (HECC) technologies. To demonstrate the technology is compatible with B2

Donald Stanton

2010-03-31T23:59:59.000Z

346

A Comparison of Measured and Modeled Broadband Fluxes from Aircraft Data during the ICE '89 Field Experiment  

Science Conference Proceedings (OSTI)

During the 1989 intensive field campaign of the International Cirrus Experiment (ICE) over the North Sea, broadband radiative fluxes were measured in, above, and below cirrus cloud by a number of European meteorological research aircraft. One ...

R. W. Saunders; G. Brogniez; J. C. Buriez; R. Meerkötter; P. Wendling

1992-08-01T23:59:59.000Z

347

Combustion modeling in waste tanks  

DOE Green Energy (OSTI)

This paper has two objectives. The first one is to repeat previous simulations of release and combustion of flammable gases in tank SY-101 at the Hanford reservation with the recently developed code GASFLOW-II. The GASFLOW-II results are compared with the results obtained with the HMS/TRAC code and show good agreement, especially for non-combustion cases. For combustion GASFLOW-II predicts a steeper pressure rise than HMS/TRAC. The second objective is to describe a so-called induction parameter model which was developed and implemented into GASFLOW-II and reassess previous calculations of Bureau of Mines experiments for hydrogen-air combustion. The pressure time history improves compared with the one-step model, and the time rate of pressure change is much closer to the experimental data.

Mueller, C.; Unal, C. [Los Alamos National Lab., NM (United States); Travis, J.R. [Los Alamos National Lab., NM (United States)]|[Forschungszentrum Karlsruhe (Germany). Inst. fuer Reaktorsicherheit

1997-08-01T23:59:59.000Z

348

Plum Combustion | Open Energy Information  

Open Energy Info (EERE)

Plum Combustion Plum Combustion Jump to: navigation, search Name Plum Combustion Place Atlanta, Georgia Product Combustion technology, which reduces NOx-emissions. Coordinates 33.748315°, -84.391109° 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":33.748315,"lon":-84.391109,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

349

Fluctuations in combustion-driven MHD generators  

DOE Green Energy (OSTI)

Results of an experimental and theoretical investigation of inherent fluctuations that occur within combustion-driven MHD generators are presented. The primary concern was to determine the presence and effects of axially-propagating, linear hydrodynamic traveling-waves of the magnetoacoustic and magnetoentropic types. The possible development of large fluctuations in high magnetic interaction MHD generators caused by hydrodynamic traveling-waves propagating with increasing amplitude was considered. Experimentally, time-resolved measurements of pressures, electrode currents, and internal differential voltages within a laboratory-scale, combustion-driven MHD generator facility were analyzed. A special probe-tube microphone provided a sensitive measurement of the pressure fluctuations within a combustion-driven MHD generator duct. The time-resolved measurements were analyzed in terms of statistical properties such as relative fluctuation levels, spectraldensity functions, cross-correlation coefficients, and coherence and relative phase functions. The presence and subsequent electrical effects of axially-propagating acoustic and entropy waves were observed. At low mean fluid velocities during MHD generator operation with high current densities, 1.0 Amp/cm/sup 2/, and with applied magnetic field, 2.4 Tesla, fluctuations in the current-magnetic field interaction force caused by the electrical conductivity variations associated with the entropy waves resulted in a threefold increase in pressure fluctuation levels within the upstream part of the MHD duct. Hydrodynamic traveling-waves within an MHD duct were theoretically investigated by considering a first-order linearization analysis of the controlling, quasi-one dimensional fluid and electrical equations of an MHD generator. Comparisons between experimental results and a theoretical model were in qualitative agreement.

Barton, J.P.

1980-08-01T23:59:59.000Z

350

Reducing mode circulating fluid bed combustion  

DOE Patents (OSTI)

A method for combustion of sulfur-containing fuel in a circulating fluid bed combustion system wherein the fuel is burned in a primary combustion zone under reducing conditions and sulfur captured as alkaline sulfide. The reducing gas formed is oxidized to combustion gas which is then separated from solids containing alkaline sulfide. The separated solids are then oxidized and recycled to the primary combustion zone.

Lin, Yung-Yi (Katy, TX); Sadhukhan, Pasupati (Katy, TX); Fraley, Lowell D. (Sugarland, TX); Hsiao, Keh-Hsien (Houston, TX)

1986-01-01T23:59:59.000Z

351

Passive solar roof ice melter  

Science Conference Proceedings (OSTI)

An elongated passive solar roof ice melter is placed on top of accumulated ice and snow including an ice dam along the lower edge of a roof of a heated building and is held against longitudinal movement with respect to itself. The melter includes a bottom wall having an upper surface highly absorbent to radiant solar energy; a first window situated at right angles with respect to the bottom wall, and a reflecting wall connecting the opposite side edges of the bottom wall and the first window. The reflecting wall has a surface facing the bottom wall and the window which is highly reflective to radiant solar energy. Radiant solar energy passes through the first window and either strikes the highly absorbent upper surface of the bottom wall or first strikes the reflecting wall to be reflected down to the upper surface of the bottom wall. The heat generated thereby melts through the ice below the bottom wall causing the ice dam to be removed between the bottom wall and the top of the roof and immediately adjacent to the ice melter along the roof. Water dammed up by the ice dam can then flow down through this break in the dam and drain out harmlessly onto the ground. This prevents dammed water from seeping back under the shingles and into the house to damage the interior of the house.

Deutz, R.T.

1981-09-29T23:59:59.000Z

352

Thallium in Coal Combustion Products  

Science Conference Proceedings (OSTI)

Thallium is a naturally occurring trace element that is present in coal and coal combustion products (CCPs). Thallium is of interest because it has a relatively low maximum contaminant level (MCL) in drinking water. This Technical Brief provides EPRI data on thallium in CCPs, along with general information on its occurrence, health effects, and treatment. Most of the information presented is summarized from the 2008 EPRI Technical Report 1016801, Chemical Constituents in Coal Combustion Product Leachate: ..

2013-11-27T23:59:59.000Z

353

Oxy-Combustion Activities Worldwide  

Science Conference Proceedings (OSTI)

This report reviews oxy-combustion development activities throughout the world. The report opens by reviewing carbon dioxide (CO2) capture technologies and their relative advantages and disadvantages before focusing on oxy-combustion concepts and giving details on potential designs. It then delves into each sub-system (air separation, oxy boiler, gas quality control, and CO2 purification) giving the latest updates on technologies and associated development issues, pulling from work reported at the Second...

2012-06-26T23:59:59.000Z

354

Forecast Verification of the Polar Ice Prediction System (PIPS) Sea Ice Concentration Fields  

Science Conference Proceedings (OSTI)

The National Ice Center relies upon a coupled ice–ocean model called the Polar Ice Prediction System (PIPS) to provide guidance for its 24–120-h sea ice forecasts. Here forecast skill assessments of the sea ice concentration (C) fields from PIPS ...

Michael L. Van Woert; Cheng-Zhi Zou; Walter N. Meier; Philip D. Hovey; Ruth H. Preller; Pamela G. Posey

2004-06-01T23:59:59.000Z

355

The first turbulent combustion  

E-Print Network (OSTI)

The first turbulent combustion arises in a hot big bang cosmological model Gibson (2004) where nonlinear exothermic turbulence permitted by quantum mechanics, general relativity, multidimensional superstring theory, and fluid mechanics cascades from Planck to strong force freeze out scales with gravity balancing turbulent inertial-vortex forces. Interactions between Planck scale spinning and non-spinning black holes produce high Reynolds number turbulence and temperature mixing with huge Reynolds stresses driving the rapid inflation of space. Kolmogorovian turbulent temperature patterns are fossilized as strong-force exponential inflation stretches them beyond the scale of causal connection ct where c is light speed and t is time. Fossil temperature turbulence patterns seed nucleosynthesis, and then hydro-gravitational structure formation in the plasma epoch, Gibson (1996, 2000). Evidence about formation mechanisms is preserved by cosmic microwave background temperature anisotropies. CMB spectra indicate hydro-gravitational fragmentation at supercluster to galaxy masses in the primordial plasma with space stretched by \\~10^50. Bershadskii and Sreenivasan (2002, 2003) CMB multi-scaling coefficients support a strong turbulence origin for the anisotropies prior to the plasma epoch.

Carl H. Gibson

2005-01-19T23:59:59.000Z

356

Co-combustion feasibility study. Final report  

DOE Green Energy (OSTI)

This report investigates the technical and economic feasibility of co-combusting municipal sewage sludge produced by the Saratoga County Sewer District No. 1 with paper mill sludge produced by the Cottrell Paper Company, Encore Paper Company, International Paper Company, Mohawk Paper Mills, and TAGSONS Papers at the Saratoga County Sewer District No. 1`s secondary wastewater treatment plant and recovering any available energy products. The co-combustion facility would consist of sludge and wood chip storage and conveying systems, belt filter presses, screw presses, fluidized-bed incinerators, venturi scrubbers and tray cooling systems, ash dewatering facilities, heat recovery steam generators, gas-fired steam superheaters, and a back-pressure steam turbine system. Clean waste wood chips would be used as an auxiliary fuel in the fluidized-bed incinerators. It is recommended that the ash produced by the proposed facility be beneficially used, potentially as a raw material in the manufacture of cement and/or as an interim barrier layer in landfills.

Handcock, D.J. [Clough, Harbour and Associates, Albany, NY (United States)

1995-01-01T23:59:59.000Z

357

Particulate emissions from combustion of biomass in conventional combustion (air) and oxy-combustion conditions.  

E-Print Network (OSTI)

??Oxy-fuel combustion is a viable technology for new and existing coal-fired power plants, as it facilitates carbon capture and thereby, can reduce carbon dioxide emissions.… (more)

Ruscio, Amanda

2013-01-01T23:59:59.000Z

358

Pre-Combustion Carbon Capture Research | Department of Energy  

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

Pre-Combustion Carbon Capture Research Pre-combustion capture refers to removing CO2 from fossil fuels before combustion is completed. For example, in gasification processes a...

359

Ice_slurry_fact_sheet  

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

new approach to saving stroke and cardiac arrest victims by using a specially engineered ice slurry to cool organs. The technology is also being investigated as a way to improve...

360

Method of forming clathrate ice  

DOE Patents (OSTI)

A method of forming clathrate ice in a supercooled water-based liquid contained in a vessel is disclosed. Initially, an oscillator device is located in the liquid in the vessel. The oscillator device is then oscillated ultrasonically so that small crystals are formed in the liquid. These small crystals serve as seed crystals for ice formation in the liquid and thereby prevent supercooling of the liquid. Preferably, the oscillating device is controlled by a thermostat which initiates operation of the oscillator device when the temperature of the liquid is lowered to the freezing point. Thereafter, the operation of the oscillator device is terminated when ice is sensed in the liquid by an ice sensor.

Hino, Toshiyuki (Tokyo, JP); Gorski, Anthony J. (Lemont, IL)

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Method of forming calthrate ice  

DOE Patents (OSTI)

A method of forming clathrate ice in a supercooled water-based liquid contained in a vessel is disclosed. Initially, an oscillator device is located in the liquid in the vessel. The oscillator device is then oscillated ultransonically so that small crystals are formed in the liquid. Thes small crystals serve as seed crystals for ice formation in the liquid and thereby prevent supercooling of the liquid. Preferably, the oscillating device is controlled by a thermostat which initiates operation of the oscillator device when the temperature of the liquid is lowered to the freezing point. Thereafter, the operation of the oscillator device is terminated when ice is sensed in the liquid by an ice sensor.

Hino, T.; Gorski, A.J.

1985-09-30T23:59:59.000Z

362

Melting of Ice under Pressure  

SciTech Connect

The melting of ice under pressure is investigated with a series of first principles molecular dynamics simulations. In particular, a two-phase approach is used to determine the melting temperature of the ice-VII phase in the range of 10 to 50 GPa. Our computed melting temperatures are consistent with existing diamond anvil cell experiments. We find that for pressures between 10 to 40 GPa, ice melts as a molecular solid. For pressures above {approx}45 GPa there is a sharp increase in the slope of the melting curve due to the presence of molecular dissociation and proton diffusion in the solid, prior to melting. The onset of significant proton diffusion in ice-VII as a function of increasing temperature is found to be gradual and bears many similarities to that of a type-II superionic solid.

Schwegler, E; Sharma, M; Gygi, F; Galli, G

2008-07-31T23:59:59.000Z

363

An Inverse Method for Tracking Ice Motion in the Marginal Ice Zone Using Sequential Satellite Images  

Science Conference Proceedings (OSTI)

A new method for tracking ice motion and estimating ocean surface currents from sequential satellite images is presented. It is particularly suited for the marginal ice zone. A simple ice advection model, driven by wind and surface currents, is ...

Mark Buehner; Keith R. Thompson; Ingrid Peterson

1997-12-01T23:59:59.000Z

364

Effects of Surface Roughness and Surface Energy on Ice Adhesion ...  

Science Conference Proceedings (OSTI)

Ice adheres to steel surfaces when the environment temperature is low. In many cases, ice formation on surfaces is unwanted; therefore, anti-icing techniques ...

365

ICR-ICE Standard Operating Procedures | Department of Energy  

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

ICR-ICE Standard Operating Procedures ICR-ICE Standard Operating Procedures ICE-ICR SOP.pdf More Documents & Publications External Independent Review (EIR) Standard Operating...

366

Ice structures, patterns, and processes: A view across the ice-fields  

E-Print Network (OSTI)

We look ahead from the frontiers of research on ice dynamics in its broadest sense; on the structures of ice, the patterns or morphologies it may assume, and the physical and chemical processes in which it is involved. We highlight open questions in the various fields of ice research in nature; ranging from terrestrial and oceanic ice on Earth, to ice in the atmosphere, to ice on other solar system bodies and in interstellar space.

Bartels-Rausch, Thorsten; Cartwright, Julyan H E; Escribano, Rafael; Finney, John L; Grothe, Hinrich; Gutiérrez, Pedro J; Haapala, Jari; Kuhs, Werner F; Pettersson, Jan B C; Price, Stephen D; Sainz-Díaz, C Ignacio; Stokes, Debbie J; Strazzulla, Giovanni; Thomson, Erik S; Trinks, Hauke; Uras-Aytemiz, Nevin; 10.1103/RevModPhys.84.885

2012-01-01T23:59:59.000Z

367

Turbulent Combustion in SDF Explosions  

Science Conference Proceedings (OSTI)

A heterogeneous continuum model is proposed to describe the dispersion and combustion of an aluminum particle cloud in an explosion. It combines the gas-dynamic conservation laws for the gas phase with a continuum model for the dispersed phase, as formulated by Nigmatulin. Inter-phase mass, momentum and energy exchange are prescribed by phenomenological models. It incorporates a combustion model based on the mass conservation laws for fuel, air and products; source/sink terms are treated in the fast-chemistry limit appropriate for such gasdynamic fields, along with a model for mass transfer from the particle phase to the gas. The model takes into account both the afterburning of the detonation products of the C-4 booster with air, and the combustion of the Al particles with air. The model equations were integrated by high-order Godunov schemes for both the gas and particle phases. Numerical simulations of the explosion fields from 1.5-g Shock-Dispersed-Fuel (SDF) charge in a 6.6 liter calorimeter were used to validate the combustion model. Then the model was applied to 10-kg Al-SDF explosions in a an unconfined height-of-burst explosion. Computed pressure histories are compared with measured waveforms. Differences are caused by physical-chemical kinetic effects of particle combustion which induce ignition delays in the initial reactive blast wave and quenching of reactions at late times. Current simulations give initial insights into such modeling issues.

Kuhl, A L; Bell, J B; Beckner, V E

2009-11-12T23:59:59.000Z

368

HCCI Combustion: Analysis and Experiments  

DOE Green Energy (OSTI)

Homogeneous charge compression ignition (HCCI) is a new combustion technology that may develop as an alternative to diesel engines with high efficiency and low NOx and particulate matter emissions. This paper describes the HCCI research activities being currently pursued at Lawrence Livermore National Laboratory and at the University of California Berkeley. Current activities include analysis as well as experimental work. On analysis, we have developed two powerful tools: a single zone model and a multi-zone model. The single zone model has proven very successful in predicting start of combustion and providing reasonable estimates for peak cylinder pressure, indicated efficiency and NOX emissions. This model is being applied to develop detailed engine performance maps and control strategies, and to analyze the problem of engine startability. The multi-zone model is capable of very accurate predictions of the combustion process, including HC and CO emissions. The multi-zone model h as applicability to the optimization of combustion chamber geometry and operating conditions to achieve controlled combustion at high efficiency and low emissions. On experimental work, we have done a thorough evaluation of operating conditions in a 4-cylinder Volkswagen TDI engine. The engine has been operated over a wide range of conditions by adjusting the intake temperature and the fuel flow rate. Satisfactory operation has been obtained over a wide range of operating conditions. Cylinder-to-cylinder variations play an important role in limiting maximum power, and should be controlled to achieve satisfactory performance.

Salvador M. Aceves; Daniel L. Flowers; Joel Martinez-Frias; J. Ray Smith; Robert Dibble; Michael Au; James Girard

2001-05-14T23:59:59.000Z

369

STRUCTURE-BASED PREDICTIVE MODEL FOR COAL CHAR COMBUSTION  

Science Conference Proceedings (OSTI)

Progress was made this period on a number of tasks. A significant advance was made in the incorporation of macrostructural ideas into high temperature combustion models. Work at OSU by R. Essenhigh in collaboration with the University of Stuttgart has led to a theory that the zone I / II transition in char combustion lies within the range of conditions of interest for pulverized char combustion. The group has presented evidence that some combustion data, previously interpreted with zone II models, in fact takes place in the transition from zone II to zone 1. This idea was used at Brown to make modifications to the CBK model (a char kinetics package specially designed for carbon burnout prediction, currently used by a number of research and furnace modeling groups in academia and industry). The resulting new model version, CBK8, shows improved ability to predict extinction behavior in the late stages of combustion, especially for particles with low ash content. The full development and release of CBK8, along with detailed descriptions of the role of the zone 1/2 transition will be reported on in subsequent reports. ABB-CE is currently implementing CBK7 into a special version of the CFD code Fluent for use in the modeling and design of their boilers. They have been appraised of the development, and have expressed interest in incorporating the new feature, realizing full CBK8 capabilities into their combustion codes. The computational chemistry task at OSU continued to study oxidative pathways for PAH, with emphasis this period on heteroatom containing ring compounds. Preliminary XPS studies were also carried out. Combustion experiments were also carried out at OSU this period, leading to the acquisition of samples at various residence times and the measurement of their oxidation reactivity by nonisothermal TGA techniques. Several members of the project team attended the Carbon Conference this period and made contacts with representatives from the new FETC Consortium for Premium Carbon Products from Coal. Possibilities for interactions with this new center will be explored. Also this period, an invited review paper was prepared for the 27th International Symposium on Combustion, to be held in Boulder, Colorado in August. The paper is entitled; "Structure, Properties, and Reactivity of Solid Fuels," and reports on a number of advances made in this collaborative project.

CHRISTOPHER M. HADAD; JOSEPH M. CALO; ROBERT H. ESSENHIGH; ROBERT H. HURT

1998-09-11T23:59:59.000Z

370

Combustion instability modeling and analysis  

DOE Green Energy (OSTI)

It is well known that the two key elements for achieving low emissions and high performance in a gas turbine combustor are to simultaneously establish (1) a lean combustion zone for maintaining low NO{sub x} emissions and (2) rapid mixing for good ignition and flame stability. However, these requirements, when coupled with the short combustor lengths used to limit the residence time for NO formation typical of advanced gas turbine combustors, can lead to problems regarding unburned hydrocarbons (UHC) and carbon monoxide (CO) emissions, as well as the occurrence of combustion instabilities. The concurrent development of suitable analytical and numerical models that are validated with experimental studies is important for achieving this objective. A major benefit of the present research will be to provide for the first time an experimentally verified model of emissions and performance of gas turbine combustors. The present study represents a coordinated effort between industry, government and academia to investigate gas turbine combustion dynamics. Specific study areas include development of advanced diagnostics, definition of controlling phenomena, advancement of analytical and numerical modeling capabilities, and assessment of the current status of our ability to apply these tools to practical gas turbine combustors. The present work involves four tasks which address, respectively, (1) the development of a fiber-optic probe for fuel-air ratio measurements, (2) the study of combustion instability using laser-based diagnostics in a high pressure, high temperature flow reactor, (3) the development of analytical and numerical modeling capabilities for describing combustion instability which will be validated against experimental data, and (4) the preparation of a literature survey and establishment of a data base on practical experience with combustion instability.

Santoro, R.J.; Yang, V.; Santavicca, D.A. [Pennsylvania State Univ., University Park, PA (United States); Sheppard, E.J. [Tuskeggee Univ., Tuskegee, AL (United States). Dept. of Aerospace Engineering

1995-12-31T23:59:59.000Z

371

Apparatus and method for operating internal combustion engines ...  

Solar Photovoltaic; Solar Thermal; Startup America; Vehicles and Fuels; Wind Energy; ... The Regents of the University of California (Oakland, CA) Application Number:

372

Microwave-Assisted Ignition for Improved Internal Combustion Engine Efficiency  

E-Print Network (OSTI)

Collisions with Carbon Dioxide. ” J. Phys. Chem. Ref. Data,of the harmful impact of carbon dioxide emissions. Chapterof atmospheric carbon dioxide have intensified the

DeFilippo, Anthony Cesar

2013-01-01T23:59:59.000Z

373

Alternative Fuel Pilot Plant & Hydrogen Internal Combustion Engine...  

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

a model alternative fuel refueling system, dispensing hydrogen, compressed natural gas (CNG), and hydrogenCNG blends (HCNG). The plant is used daily to fuel vehicles operated in...

374

Microwave-Assisted Ignition for Improved Internal Combustion Engine Efficiency  

E-Print Network (OSTI)

contiguous United States crude oil production would peakthose associated with conventional oil. The problem has thusbiomass, coal, and whale oil for heat and light, harnessing

DeFilippo, Anthony Cesar

2013-01-01T23:59:59.000Z

375

CSE - International Workshop on Photon Tools for Combustion and...  

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

- Conversion Travel View Argonne Site Map Argonne National Laboratory is about 45 minutes by car from each of the two major Chicago airports, O'Hare and Midway (see map)....

376

Variable Stroke Crank Shaft for an Internal Combustion Engine.  

E-Print Network (OSTI)

??Our planet is continuously being depleted of its natural resources leading to a need to conserve energy and the environment. One of the major energy… (more)

Ismail, Fareed

2012-01-01T23:59:59.000Z

377

Animal fat (tallow) as fuel for stationary internal combustion engines.  

E-Print Network (OSTI)

??The main aim of this thesis is to verify the suitability of waste animal fat, obtained from animal by-products in a process called rendering, as… (more)

Piaszyk, Jakub

2012-01-01T23:59:59.000Z

378

A survey of carbon monoxide and nitrogen dioxide in indoor ice arenas in Vermont  

Science Conference Proceedings (OSTI)

Because of the history of health problems traceable to the exhaust of ice resurfacing machines, state sanitarians used detector tubes to measure carbon monoxide (CO) and nitrogen dioxide (NO[sub 2]) levels in enclosed ice arenas in Vermont during high school hockey games. Five of eight arenas had average game CO measurements of 30 ppm carbon monoxide or more. Two of the three periods of play had average CO readings in excess of 100 ppm in one arena. Only six arenas had the complete series of nitrogen dioxide measurements. One had an average game NO[sub 2] level of 1.2 ppm. Two had one or more periods of play that averaged in excess of 0.5 ppm. Despite the ample documentation of the hazards of operating combustion-powered resurfacing machines inside enclosed ice arenas, a significant portion of the arenas had undesirable levels of carbon monoxide or nitrogen dioxide. Ice arenas should be routinely monitored for air contaminants. Considerations should be given to the purchase of electric ice resurfacing machines for new arenas and arenas that have air contamination that cannot be resolved with ventilation.

Paulozzi, L.J. (Vermont Health Dept., Burlington, VT (United States)); Spengler, R.F.; Vogt, R.L.; Carney, J.K.

1993-12-01T23:59:59.000Z

379

Combustion heater for oil shale  

DOE Patents (OSTI)

A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650 to 700/sup 0/C for use as a process heat source.

Mallon, R.; Walton, O.; Lewis, A.E.; Braun, R.

1983-09-21T23:59:59.000Z

380

Combustion heater for oil shale  

DOE Patents (OSTI)

A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650.degree.-700.degree. C. for use as a process heat source.

Mallon, Richard G. (Livermore, CA); Walton, Otis R. (Livermore, CA); Lewis, Arthur E. (Los Altos, CA); Braun, Robert L. (Livermore, CA)

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Engine Combustion Network Experimental Data  

DOE Data Explorer (OSTI)

Maintained by the Engine Combustion Department of Sandia National Laboratories, data currently available on the website includes reacting and non-reacting sprays in a constant-volume chamber at conditions typical of diesel combustion. The data are useful for model development and validation because of the well-defined boundary conditions and the wide range of conditions employed. A search utility displays data based on experimental conditions such as ambient temperature, ambient density, injection pressure, nozzle size, fuel, etc. Experiment-related visualizations are also available. The search utility for experimental data is located at http://public.ca.sandia.gov/ecn/cvdata/frameset.html (Specialized Interface)

382

Transonic Combustion Inc | Open Energy Information  

Open Energy Info (EERE)

Transonic Combustion Inc Transonic Combustion Inc Jump to: navigation, search Name Transonic Combustion, Inc. Place Camarillo, California Zip CA 93012 Sector Efficiency, Renewable Energy Product Transonic Combustion, Inc. is a US based research & development company focused on developing ultra-high efficiency automotive engines that run on gasoline and bio-renewable flex fuels. References Transonic Combustion, Inc.[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Transonic Combustion, Inc. is a company located in Camarillo, California . References ↑ "Transonic Combustion, Inc." Retrieved from "http://en.openei.org/w/index.php?title=Transonic_Combustion_Inc&oldid=352376

383

Engine control system for multiple combustion modes  

Science Conference Proceedings (OSTI)

To reduce the emission by Diesel-engine in railway traction, continuous development and innovation in combustion, sensing net, control method and strategies are required to met the legal requirements. Multiple combustion modes by Diesel engines can reduce ...

D. Bonta; V. Tulbure; Cl. Festila

2008-05-01T23:59:59.000Z

384

TURBULENT FRBRNNING MVK130 Turbulent Combustion  

E-Print Network (OSTI)

TURBULENT F�RBR�NNING MVK130 Turbulent Combustion Poäng: 3.0 Betygskala: TH Valfri för: M4 to combustion, McGraw-Hill 1996. #12;

385

Method for storing radioactive combustible waste  

DOE Patents (OSTI)

A method is described for preventing pressure buildup in sealed containers which contain radioactively contaminated combustible waste material by adding an oxide getter material to the container so as to chemically bind sorbed water and combustion product gases. (Official Gazette)

Godbee, H.W.; Lovelace, R.C.

1973-10-01T23:59:59.000Z

386

Large-Scale Hydrogen Combustion Experiments  

Science Conference Proceedings (OSTI)

Large-scale combustion experiments show that deliberate ignition can limit hydrogen accumulation in reactor containments. The collected data allow accurate evaluation of containment pressures and temperatures associated with hydrogen combustion.

1988-10-18T23:59:59.000Z

387

Ross Ice Shelf in situ radio-frequency ice attenuation  

E-Print Network (OSTI)

We have measured the in situ average electric field attenuation length for radio-frequency signals broadcast vertically through the Ross Ice Shelf. We chose a location, Moore Embayment, south of Minna Bluff, known for its high reflectivity at the ice-sea interface. We confirmed specular reflection and used the return pulses to measure the average attenuation length from 75-1250 MHz over the round-trip distance of 1155 m. We find the average electric field attenuation length to vary from 500 m at 75 MHz to 300 m at 1250 MHz, with an experimental uncertainty of 55 to 15 m. We discuss the implications for neutrino telescopes that use the radio technique and include the Ross Ice Shelf as part of their sensitive volume.

Taylor Barrella; Steven Barwick; David Saltzberg

2010-11-02T23:59:59.000Z

388

Theoretical studies on hydrogen ignition and droplet combustion  

E-Print Network (OSTI)

Combustion Theory Second Edition, Addison-Wesley, Red- woodCombustion Theory. Second Edition, Addison-Wesley, Red- wood

Del Álamo, Gonzalo

2006-01-01T23:59:59.000Z

389

Combustion Synthesis of Silicon Carbide 389 Combustion Synthesis of Silicon Carbide  

E-Print Network (OSTI)

Combustion Synthesis of Silicon Carbide 389 X Combustion Synthesis of Silicon Carbide Alexander S. Mukasyan University of Notre Dame USA 1. Introduction Combustion synthesis (CS) is an effective technique by which combustion synthesis can occur: self - propagating high-temperature synthesis (SHS) and volume

Mukasyan, Alexander

390

ME 6990 -Combustion Catalog Data: ME 6990: Combustion. Sem. 2. Class 3, Credit 3 (el.).  

E-Print Network (OSTI)

ME 6990 - Combustion Catalog Data: ME 6990: Combustion. Sem. 2. Class 3, Credit 3 (el.). Physical and chemical aspects of basic combustion phenomena. Classification of flames. Measurement of laminar flame. Fuels. Atomization and evaporation of liquid fuels. Theories of ignition, stability and combustion

Panchagnula, Mahesh

391

Supersonic combustion studies using a multivariate quadrature based method for combustion modeling  

E-Print Network (OSTI)

Supersonic combustion studies using a multivariate quadrature based method for combustion modeling function (PDF) of thermochemical variables can be used for accurately computing the combustion source term of predictive models for supersonic combustion is a critical step in design and development of scramjet engines

Raman, Venkat

392

Apparatus for closed-loop combustion control in internal combustion engines  

SciTech Connect

Schematically disclosed is an engine control apparatus wherein cylinder pressure is sensed before and after the top dead center position. Desired cylinder pressure curves are stored in a microcomputer for a range of engine speed-load combinations. By electrically comparing the actual pressure-time curve with the desired pressure curve for the existing speed-load combination it should be possible to generate an error signal representing deviation of actual engine performance from the desired performance, i.e., a permissible plus or minus band following the desired curve. The invention would provide a control action using only three parameters, namely engine speed, engine load and cylinder pressure.

Cheklich, G.E.

1983-03-10T23:59:59.000Z

393

Combustion Synthesis of Doped Calcium Cobaltate Thermoelectric ...  

Science Conference Proceedings (OSTI)

Symposium, Innovative Processing and Synthesis of Ceramics, Glasses and Composites. Presentation Title, Combustion Synthesis of Doped Calcium Cobaltate ...

394

Review of Combustion Modification Emerging Technologies  

Science Conference Proceedings (OSTI)

Combustion modification emerging technologies for coal-fired boilers represent new developments in NOx control through changes in the fuel/air mixing of the combustion process. Technologies examined in this report fall into the categories of low-NOX burners (LNB), overfire air (OFA), enriched combustion, and combustion diagnostics. The technology reviews are comprised of the following sections where sufficient information was available: background, NOX reduction principle, performance and experience base...

2008-02-26T23:59:59.000Z

395

Oxy-combustion Boiler Material Development  

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

Oxy-combustion Boiler Material Oxy-combustion Boiler Material Development Background In an oxy-combustion system, combustion air (79 percent nitrogen, 21 percent oxygen) is replaced by oxygen and recycled flue gas (carbon dioxide [CO 2 ] and water), eliminating nitrogen in the flue gas stream. When applied to an existing boiler, the flue gas recirculation rate is adjusted to enable the boiler to maintain its original air-fired heat absorption performance, eliminating the need to derate the boiler

396

Polarization dependence of radiowave propagation through Antarctic ice  

E-Print Network (OSTI)

Using a bistatic radar system on the ice surface, we have studied radiofrequency reflections off internal layers in Antarctic ice at the South Pole. In our measurement, the total propagation time of ~ns-duration, vertically broadcast radio signals, as a function of polarization axis in the horizontal plane, provides a direct probe of the geometry-dependence of the ice permittivity to depths of 1--2 km. Previous studies in East Antarctica have interpreted the measured azimuthal dependence of reflected signals as evidence for birefringent-induced interference effects, which are proposed to result from preferred alignment of the crystal orientation fabric (COF) axis. To the extent that COF alignment results from the bulk flow of ice across the Antarctic continent, we would expect a measurable birefringent asymmetry at South Pole, as well. Although we also observe clear dependence of reflected amplitude on polarization angle in our measurements, we do not observe direct evidence for birefringent-induced time-delay effects at the level of 0.1 parts per mille.

Dave Z. Besson

2008-03-30T23:59:59.000Z

397

Relative Dispersion of Ice Crystals in Seeded Cumuli  

Science Conference Proceedings (OSTI)

Relative dispersion of ice crystals was measured in 30 seeded cumulus clouds. A quasi-instantaneous, vertical area source of ice was generated by releasing dry-ice pellets from an airplane. The ice concentration distribution and relative ...

Jeffrey C. Weil; R. Paul Lawson; Alfred R. Rodi

1993-06-01T23:59:59.000Z

398

Ice Energy | Open Energy Information  

Open Energy Info (EERE)

Ice Energy Ice Energy Jump to: navigation, search Logo: Ice Energy Name Ice Energy Address 9351 Eastman Park Drive Place Windsor, Colorado Zip 80550 Sector Renewable energy Product Energy Storage Year founded 2003 Number of employees 51-200 Phone number 970-545-3630 Website http://www.ice-energy.com/ Coordinates 40.4651775°, -104.882° 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":40.4651775,"lon":-104.882,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

399

Dynamic instabilities in spark-ignited combustion engines with high exhaust gas recirculation  

DOE Green Energy (OSTI)

We propose a cycle-resolved dynamic model for combustion instabilities in spark-ignition engines operating with high levels of exhaust gas recirculation (EGR). High EGR is important for increasing fuel efficiency and implementing advanced low-emission combustion modes such as homogenous charge compression ignition (HCCI). We account for the complex combustion response to cycle-to-cycle feedback by utilizing a global probability distribution that describes the pre-spark state of in-cylinder fuel mixing. The proposed model does a good job of simulating combustion instabilities observed in both lean-fueling engine experiments and in experiments where nitrogen dilution is used to simulate some of the combustion inhibition of EGR. When used to simulate high internal EGR operation, the model exhibits a range of global bifurcations and chaos that appear to be very robust. We use the model to show that it should be possible to reduce high EGR combustion instabilities by switching from internal to external EGR. We also explain why it might be helpful to deliberately stratify the fuel in the pre-spark gas mixture. It might be possible to extend the simple approach used in this model to other chemical reaction systems with spatial inhomogeneity.

Daw, C Stuart [ORNL; FINNEY, Charles E A [ORNL

2011-01-01T23:59:59.000Z

400

Combustor nozzle for a fuel-flexible combustion system  

DOE Patents (OSTI)

A combustor nozzle is provided. The combustor nozzle includes a first fuel system configured to introduce a syngas fuel into a combustion chamber to enable lean premixed combustion within the combustion chamber and a second fuel system configured to introduce the syngas fuel, or a hydrocarbon fuel, or diluents, or combinations thereof into the combustion chamber to enable diffusion combustion within the combustion chamber.

Haynes, Joel Meier (Niskayuna, NY); Mosbacher, David Matthew (Cohoes, NY); Janssen, Jonathan Sebastian (Troy, NY); Iyer, Venkatraman Ananthakrishnan (Mason, OH)

2011-03-22T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Fifteen Lectures on Laminar and Turbulent Combustion  

E-Print Network (OSTI)

Fifteen Lectures on Laminar and Turbulent Combustion N. Peters RWTH Aachen Ercoftac Summer School in Combustion Systems 1 Lecture 2: Calculation of Adiabatic Flame Temperatures and Chemical Equilibria 20: Laminar Diffusion Flames: Different Flow Geometries 156 Lecture 11: Turbulent Combustion: Introduction

Peters, Norbert

402

Combustion joining of refractory materials: Carboncarbon composites  

E-Print Network (OSTI)

Combustion joining of refractory materials: Carbon­carbon composites Jeremiah D.E. White Department­carbon composite is achieved by employing self-sustained, oxygen-free, high-temperature combustion reactions to a used "core" to produce a brake that meets the performance specifications. The combustion-joining (CJ

Mukasyan, Alexander

403

Reduced No.sub.x combustion method  

DOE Patents (OSTI)

A combustion method enabling reduced NO.sub.x formation wherein fuel and oxidant are separately injected into a combustion zone in a defined velocity relation, combustion gases are aspirated into the oxidant stream prior to intermixture with the fuel, and the fuel is maintained free from contact with oxygen until the intermixture.

Delano, Mark A. (Briarcliff Manor, NY)

1991-01-01T23:59:59.000Z

404

INTEGRAL CATALYTIC COMBUSTION/FUEL REFORMING  

E-Print Network (OSTI)

INTEGRAL CATALYTIC COMBUSTION/FUEL REFORMING FOR GAS TURBINE Prepared For: California Energy REPORT (FAR) INTEGRAL CATALYTIC COMBUSTION/FUEL REFORMING FOR GAS TURBINE CYCLES EISG AWARDEE University://www.energy.ca.gov/research/index.html. #12;Page 1 Integral Catalytic Combustion/Fuel Reforming for Gas Turbine Cycles EISG Grant # 99

405

international risk governance council Policy Brief  

E-Print Network (OSTI)

, such as natural gas, ammonia, or hydrogen production. Regulation of transport and geological storage must "To continue to extract and combust the world's rich endowment of oil, coal, peat, and natural gas of an injection well, In Salah Gas. Courtesy of BP #12;international risk governance council Regulation of Carbon

Thomas, David D.

406

The Future of Combustion Turbine Technology for Industrial and Utility Power Generation  

E-Print Network (OSTI)

Low capital cost and ample low-cost natural gas supplies will make natural gas-fired combustion turbine systems the power generation technology of choice over the next decade. Against the background of earlier use by electric utilities, this paper examines the status, economic outlook, and future directions of combustion turbine technology for industrial and utility power generation. The discussion takes into account the ongoing deregulation and increasing competition that are shaping the electric power generation business. Included is a comparison between heavy-duty industrial combustion turbines and their rapidly evolving competition, aeroderivative machines, with emphasis on the appropriate application of each. The prospects for future improvements in the cost and performance of combustion turbines are reviewed, and the likely impact of advanced combustion turbine power generation concepts is considered. Also summarized is the outlook for power generation fuels, including the longer term reemergence of coal and the potential for widespread use of coal gasification-based combustion turbine systems. The paper draws heavily from a technical, economic, and business analysis, Combustion Turbine Power Systems, recently completed by SFA Pacific. The analysis was sponsored by an international group of energy companies that includes utilities, independent power producers (IPPs), and power industry equipment vendors.

Karp, A. D.; Simbeck, D. R.

1994-04-01T23:59:59.000Z

407

BIBLIOGRAPHY ON INTERNAL COMBUSTION ENGINES 1. F. Obert, Internal Combustion Engines and Air Pollution, Intext Educational Publishers, 1973  

E-Print Network (OSTI)

depend on vari- ous factors: engine temperature and load, aftertreatment de- vices and dilution-11545-2010 © Author(s) 2010. CC Attribution 3.0 License. Atmospheric Chemistry and Physics Impact of aftertreatment aftertreatment systems. One vehicle lacked exhaust aftertreatment devices, one ve- hicle was equipped

Entekhabi, Dara

408

Boron in Coal Combustion Products  

Science Conference Proceedings (OSTI)

This Technical Brief summarizes EPRI data on boron in CCPs, along with general information on its occurrence, health effects, and treatment. Much of the information presented is summarized from the 2005 EPRI technical report 1005258, Chemical Constituents in Coal Combustion Product Leachate: Boron, and is updated where appropriate.

2012-12-30T23:59:59.000Z

409

Pressurized fluidized-bed combustion  

SciTech Connect

If pressurised fluidised-bed combustion is to be used in combined cycle electricity generation, gas turbines must be made reliable and flue gas emission standards must be met. This report examines the issues of particulate cleaning before the turbine and stack, as well as recent work on the development of advanced gas filters.

Yeager, K.

1983-06-01T23:59:59.000Z

410

ICE Solar | Open Energy Information  

Open Energy Info (EERE)

ICE Solar ICE Solar Jump to: navigation, search Name ICE Solar Place Hyderabad, Andhra Pradesh, India Sector Solar Product India-based company focused on solar PV engineering, procurement and construction opportunities. Coordinates 17.6726°, 77.5971° 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":17.6726,"lon":77.5971,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

411

NETL: 2009 Conference Proceedings - Pre-combustion CO2 Capture Kick-off  

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

Pre-combustion CO2 Capture Kick-off Meetings Pre-combustion CO2 Capture Kick-off Meetings Pittsburgh, PA November 12-13, 2009 Table of Contents Disclaimer Presentations PRESENTATIONS Welcome/Sequestration Program Overview [PDF-842KB] Sean Plasynski, Sequestration Technology Manager Hydrogen Selective Ex-foliated Zeolite Membranes [PDF-3.4MB] University Of Minnesota Designing and Validating Ternary Pd Alloys for Optimum Sulfur/Carbon Resistance in Hydrogen Separation and Carbon Capture Membrane Systems Using High-Throughput Combinatorial Methods [PDF-746KB] Pall Corporation Pre-Combustion Carbon Dioxide Capture by a New Dual-Phase Ceramic-Carbonate Membrane Reactor [PDF-1.7MB] Arizona State University CO2 Capture from IGCC Gas Streams Using the AC-ABC Process [PDF-842KB] SRI International A Low-Cost, High-Efficiency Regenerable Sorbent for Pre-Combustion CO2 Capture [PDF-1.2MB]

412

NETL: IEP – Oxy-Combustion CO2 Emissions Control - CANMET CO2  

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

– Oxy-Combustion CO2 Emissions Control – Oxy-Combustion CO2 Emissions Control CANMET CO2 Consortium-O2/CO2 Recycle Combustion Project No.: IEA-CANMET-CO2 (International Agreement) Photograph of CANMET's Vertical Combustor Research Facility. Photograph of CANMET’s Vertical Combustor Research Facility. The CANMET carbon dioxide (CO2) consortium will conduct research to further the development of oxy-combustion for retrofit to coal-fired power plants. Research activities include: (1) modeling of an advanced, supercritical pressure oxy-coal plant, including an analysis of the impact of oxygen (O2) purity and O2 partial enrichment, overall process performance, and cost; (2) testing of pilot-scale CO2 capture and compression; (3) investigating CO2 phase change at liquid and supercritical states in gas mixtures

413

Ice Formation in Gas-Diffusion Layers  

E-Print Network (OSTI)

of California. Ice Formation in Gas-Diffusion Layers Thomasconditions, ice forms in the gas-diffusion layer (GDL) of areaction of reactant gases (1). A number of strategies exist

Dursch, Thomas

2013-01-01T23:59:59.000Z

414

Modeling Sea Ice Transport Using Incremental Remapping  

Science Conference Proceedings (OSTI)

Sea ice models contain transport equations for the area, volume, and energy of ice and snow in various thickness categories. These equations typically are solved with first-order-accurate upwind schemes, which are very diffusive; with second-...

William H. Lipscomb; Elizabeth C. Hunke

2004-06-01T23:59:59.000Z

415

Quantum Ice : a quantum Monte Carlo study  

E-Print Network (OSTI)

Ice states, in which frustrated interactions lead to a macroscopic ground-state degeneracy, occur in water ice, in problems of frustrated charge order on the pyrochlore lattice, and in the family of rare-earth magnets collectively known as spin ice. Of particular interest at the moment are "quantum spin ice" materials, where large quantum fluctuations may permit tunnelling between a macroscopic number of different classical ground states. Here we use zero-temperature quantum Monte Carlo simulations to show how such tunnelling can lift the degeneracy of a spin or charge ice, stabilising a unique "quantum ice" ground state --- a quantum liquid with excitations described by the Maxwell action of 3+1-dimensional quantum electrodynamics. We further identify a competing ordered "squiggle" state, and show how both squiggle and quantum ice states might be distinguished in neutron scattering experiments on a spin ice material.

Nic Shannon; Olga Sikora; Frank Pollmann; Karlo Penc; Peter Fulde

2011-05-20T23:59:59.000Z

416

Why Sequence Lake Vostok accretion ice?  

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

Sequence Lake Vostok accretion ice? Lake Vostok is the largest known subglacial lake in central Antarctica, though it's been buried under 4 kilometers (nearly 2.5 miles) of ice for...

417

Microsoft Word - IceMountainFinal.docx  

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

Tumbled-down boulders, called talus, on Ice Mountain's north- western slope collect ice during the winter. In the summer, cold air flows out of vents in the base of the talus,...

418

Icing Conditions Encountered by a Research Aircraft  

Science Conference Proceedings (OSTI)

The characteristics of clouds which have led to airframe icing on an instrumented Beechcraft Super King Air are summarized. The icing encounters occurred at altitudes from 0–8000 m MSL, in summer and winter, in stratiform and cumuliform clouds, ...

Wayne R. Sand; William A. Cooper; Marcia K. Politovich; Donald L. Veal

1984-10-01T23:59:59.000Z

419

Ice Crystal Replication with Common Plastic Solutions  

Science Conference Proceedings (OSTI)

Use of common plastics, i.e., polystyrene, Plexiglas (polymethyl methacrylate) and Lexan (polycarbonate), was investigated for ice crystal replication. The results suggest that all common plastics tested are usable for ice crystal replication ...

Tsuneya Takahashi; Norihiko Fukuta

1988-02-01T23:59:59.000Z

420

Airplane Instrument to Detect Ice Particles  

Science Conference Proceedings (OSTI)

A simple instrument that detects ice particles has been developed for use in airplane studies of thunderstorms. Although sophisticated instruments are available for imaging atmospheric ice particles, the spatial resolution of the particle ...

J. J. Jones; C. Grotbeck; B. Vonnegut

1989-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Light Scattering by Single Natural Ice Crystals  

Science Conference Proceedings (OSTI)

During the South Pole Ice Crystal Experiment, angular scattering intensities (ASIs) of single ice crystals formed in natural conditions were measured for the first time with the polar nephelometer instrument. The microphysical properties of the ...

Valery Shcherbakov; Jean-François Gayet; Brad Baker; Paul Lawson

2006-05-01T23:59:59.000Z

422

Sound Scattering from Sea Ice: Aspects Relevant to Ice-Draft Profiling by Sonar  

Science Conference Proceedings (OSTI)

Accurate discrimination between thin ice and open water using sonar is an important practical concern for the calibration of ice-draft observations and for the use of ice-profiling sonar in climate-related studies of sea ice. To guide improvement ...

Humfrey Melling

1998-08-01T23:59:59.000Z

423

Smoothed particle hydrodynamics non-Newtonian model for ice-sheet and ice-shelf dynamics  

Science Conference Proceedings (OSTI)

We propose a new three-dimensional smoothed particle hydrodynamics (SPH) non-Newtonian model to study coupled ice-sheet and ice-shelf dynamics. Most existing ice-sheet numerical models use grid-based Eulerian discretizations, and are usually restricted ... Keywords: Grounding line, Ice sheet, Non-Newtonian fluid, Smoothed particle hydrodynamics

W. Pan, A. M. Tartakovsky, J. J. Monaghan

2013-06-01T23:59:59.000Z

424

ICE™ and ICE/T™: tools to assist in compiler design and implementation  

Science Conference Proceedings (OSTI)

ICE (Intermediate Code Engine) and ICE/T (ICE/Translator) are compiler back ends that execute on a Java Virtual Machine (JVM). They allow the student to complete a working compiler quickly and can execute on any platform that supplies a JVM. ICE is a ... Keywords: back-end, compiler, project, translator

Truman Parks Boyer; Mohsen Chitsaz

2004-12-01T23:59:59.000Z

425

Gas isotopes in ice reveal a vegetated central Greenland during ice sheet invasion  

E-Print Network (OSTI)

on the ground surface as snow- drift and the ice sheet during a growing phase, with a mixing ratio of the localGas isotopes in ice reveal a vegetated central Greenland during ice sheet invasion R. Souchez,1 J prevailing during build-up of the Greenland Ice Sheet (GIS) are not yet established. Here we use results from

Chappellaz, Jérôme

426

Global simulations of ice nucleation and ice supersaturation with an improved cloud scheme in the Community  

E-Print Network (OSTI)

and supersaturation in CAM. The new model is able to reproduce field observations of ice mass and mixed phase cloudGlobal simulations of ice nucleation and ice supersaturation with an improved cloud scheme; accepted 3 June 2010; published 28 September 2010. [1] A processbased treatment of ice supersaturation

Gettelman, Andrew

427

Off peak ice storage generation  

DOE Green Energy (OSTI)

Due to the high costs associated with peak demand charges imposed by most electrical companies today, various means of shifting the peak HVAC load have been identified by the industry. This paper discusses the results of a study based upon a building site located in the high desert of the southwestern United States that evaluated ice storage as a mechanism of operating cost reductions. The discussion addresses both the seasonal and the annual cost and energy impacts of an ice storage system when used in place of an air-to-air heat pump system.

Davis, R.E.; Cerbo, F.J.

1985-01-01T23:59:59.000Z

428

Application in Advanced Laparoscopic Procedures: Medical Ice...  

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

Applications Homeland Security Applications Biomedical Applications Medical Ice Slurry Coolants for Inducing Targeted-OrganTissue Protective Cooling Technology...

429

CO{sub 2} ICE TOWARD LOW-LUMINOSITY EMBEDDED PROTOSTARS: EVIDENCE FOR EPISODIC MASS ACCRETION VIA CHEMICAL HISTORY  

Science Conference Proceedings (OSTI)

We present Spitzer IRS spectroscopy of CO{sub 2} ice bending mode spectra at 15.2 {mu}m toward 19 young stellar objects (YSOs) with luminosity lower than 1 L{sub Sun} (3 with luminosity lower than 0.1 L{sub Sun }). Ice on dust grain surfaces can encode the history of heating because pure CO{sub 2} ice forms only at elevated temperature, T > 20 K, and thus around protostars of higher luminosity. Current internal luminosities of YSOs with L ice at radii where typical envelopes begin. The presence of detectable amounts of pure CO{sub 2} ice would signify a higher past luminosity. Many of the spectra require a contribution from a pure, crystalline CO{sub 2} component, traced by the presence of a characteristic band splitting in the 15.2 {mu}m bending mode. About half of the sources (9 out of 19) in the low-luminosity sample have evidence for pure CO{sub 2} ice, and 6 of these have significant double-peaked features, which are very strong evidence of pure CO{sub 2} ice. The presence of the pure CO{sub 2} ice component indicates that the dust temperature, and hence luminosity of the central star/accretion disk system, must have been higher in the past. An episodic accretion scenario, in which mixed CO-CO{sub 2} ice is converted to pure CO{sub 2} ice during each high-luminosity phase, explains the presence of pure CO{sub 2} ice, the total amount of CO{sub 2} ice, and the observed residual C{sup 18}O gas.

Kim, Hyo Jeong; Evans, Neal J. II [Department of Astronomy, University of Texas at Austin, 2515 Speedway, Stop C1400 Austin, TX 78712-1205 (United States); Dunham, Michael M. [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520 (United States); Lee, Jeong-Eun [Department of Astronomy and Space Science, Kyung Hee University, Yongin-si, Gyeonggi-do 446-701 (Korea, Republic of); Pontoppidan, Klaus M., E-mail: hyojeong@astro.as.utexas.edu [Space Telescope Science Institute, Baltimore, MD 21218 (United States)

2012-10-10T23:59:59.000Z

430

Combustion engineering issues for solid fuel systems  

SciTech Connect

The book combines modeling, policy/regulation and fuel properties with cutting edge breakthroughs in solid fuel combustion for electricity generation and industrial applications. This book provides real-life experiences and tips for addressing the various technical, operational and regulatory issues that are associated with the use of fuels. Contents are: Introduction; Coal Characteristics; Characteristics of Alternative Fuels; Characteristics and Behavior of Inorganic Constituents; Fuel Blending for Combustion Management; Fuel Preparation; Conventional Firing Systems; Fluidized-Bed Firing Systems; Post-Combustion Emissions Control; Some Computer Applications for Combustion Engineering with Solid Fuels; Gasification; Policy Considerations for Combustion Engineering.

Bruce Miller; David Tillman [Pennsylvania State University, University Park, PA (United States). Energy Institute

2008-05-15T23:59:59.000Z

431

ICED'07/368 1 INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'07  

E-Print Network (OSTI)

. Durability 5. Maintenance intervals 3. Electrical Efficiency in use (including load variation) 6. Adequacy: Electricity + Heat Water management in the system ­ External Water Supply Load ­ Output Current Figure 7 knowledge in the shape of a network of interlinked contradictions. First, an overview of forecasting methods

Paris-Sud XI, Université de

432

SPECIALREPORT95-18 Structural Ice Control  

E-Print Network (OSTI)

described in this review are not limited to confluence ice situations. A second phase of the work unit will examine and select confluences with known ice problems for detailed analysis. A third phase will combineSPECIALREPORT95-18 Structural Ice Control Review of Existing Methods Andrew M. Tuthill July 1995

433

Combustion diagnostic for active engine feedback control  

DOE Patents (OSTI)

This invention detects the crank angle location where combustion switches from premixed to diffusion, referred to as the transition index, and uses that location to define integration limits that measure the portions of heat released during the combustion process that occur during the premixed and diffusion phases. Those integrated premixed and diffusion values are used to develop a metric referred to as the combustion index. The combustion index is defined as the integrated diffusion contribution divided by the integrated premixed contribution. As the EGR rate is increased enough to enter the low temperature combustion regime, PM emissions decrease because more of the combustion process is occurring over the premixed portion of the heat release rate profile and the diffusion portion has been significantly reduced. This information is used to detect when the engine is or is not operating in a low temperature combustion mode and provides that feedback to an engine control algorithm.

Green, Jr., Johney Boyd (Knoxville, TN); Daw, Charles Stuart (Knoxville, TN); Wagner, Robert Milton (Knoxville, TN)

2007-10-02T23:59:59.000Z

434

Black carbon aerosols and the third polar ice cap  

SciTech Connect

Recent thinning of glaciers over the Himalayas (sometimes referred to as the third polar region) have raised concern on future water supplies since these glaciers supply water to large river systems that support millions of people inhabiting the surrounding areas. Black carbon (BC) aerosols, released from incomplete combustion, have been increasingly implicated as causing large changes in the hydrology and radiative forcing over Asia and its deposition on snow is thought to increase snow melt. In India BC emissions from biofuel combustion is highly prevalent and compared to other regions, BC aerosol amounts are high. Here, we quantify the impact of BC aerosols on snow cover and precipitation from 1990 to 2010 over the Indian subcontinental region using two different BC emission inventories. New estimates indicate that Indian BC emissions from coal and biofuel are large and transport is expected to expand rapidly in coming years. We show that over the Himalayas, from 1990 to 2000, simulated snow/ice cover decreases by {approx}0.9% due to aerosols. The contribution of the enhanced Indian BC to this decline is {approx}36%, similar to that simulated for 2000 to 2010. Spatial patterns of modeled changes in snow cover and precipitation are similar to observations (from 1990 to 2000), and are mainly obtained with the newer BC estimates.

Menon, Surabi; Koch, Dorothy; Beig, Gufran; Sahu, Saroj; Fasullo, John; Orlikowski, Daniel

2010-04-15T23:59:59.000Z

435

Calmac Ice Storage Test report  

DOE Green Energy (OSTI)

The Ice Storage Test Facility (ISTF) is designed to test commercial ice storage systems. Calmac provided a storage tank equipped with coils designed for use with a secondary fluid system. The Calmac ice storage system was tested over a wide range of operating conditions. Measured system performance during charging was similar to that reported by the manufacturer. Both the measured average and minimum brine temperatures were in close agreement with Calmac's literature values, and the ability to fully charge the tank was relatively unaffected by charging rate and brine flow rate. During discharge cycles, the storage tank outlet temperature was strongly affected by the discharge rate. The discharge capacity was dependent upon both the selected discharge rate and maximum allowable tank outlet temperature. Based on these tests, storage tank selection must depend most strongly on the discharge conditions required to serve the load. This report describes Calmac system performance fully under both charging and discharging conditions. Companion reports describe ISTF test procedures and ice-making efficiency test results that are common to many of the units tested. 11 refs., 31 figs., 9 tabs.

Stovall, T.K.

1991-08-01T23:59:59.000Z

436

An Energy Analysis of the Catalytic Combustion Burner  

E-Print Network (OSTI)

The gas boilers of conventional flame always produce varying degrees of combustion products NOx and CO, which pollute the environment and waste energy. As a new way of combustion, catalytic combustion breaks the flammable limits of conventional flame combustion, and realizes the combustion of ultra-natural gas/air mixture under the flammable limits. Its combustion efficiency is higher, which improves the ratio of energy utilization. Applying the catalytic combustion to gas boilers could solve the gas boilers' lower combustion efficiency, and achieve energy savings. On the basis of the catalytic combustion burner, the catalytic combustion burner was designed according to the catalytic combustion and water heaters. In this paper, we analyzed the heat loss and thermal efficiency of the catalytic combustion burner, and compared it to that of flame combustion boilers. The results showed that catalytic combustion burner ?'s heat loss is not so high as originally considered, and its pollutant emissions are lower.

Dong, Q.; Zhang, S.; Duan, Z.; Zhou, Q.

2006-01-01T23:59:59.000Z

437

Pseudo-isothermal ice-crystallization kinetics in the gas-diffusion layer  

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

Pseudo-isothermal ice-crystallization kinetics in the gas-diffusion layer Pseudo-isothermal ice-crystallization kinetics in the gas-diffusion layer of a fuel cell from differential scanning calorimetry Title Pseudo-isothermal ice-crystallization kinetics in the gas-diffusion layer of a fuel cell from differential scanning calorimetry Publication Type Journal Article Year of Publication 2013 Authors Dursch, Thomas J., Monica A. Ciontea, Gregory J. Trigub, Clayton J. Radke, and Adam Z. Weber Journal International Journal of Heat and Mass Transfer Volume 60 Pagination 450 - 458 Date Published 5/2013 ISSN 00179310 Keywords crystallization, differential scanning calorimetry, gas-diffusion layer, Heat Transfer, kinetics, melt, nonisothermal crystallization, nucleation, polyesters, polymer crystallization, solidification Abstract Non-isothermal ice-crystallization kinetics in the fibrous gas-diffusion layer (GDL) of a proton-exchange-membrane fuel cell is investigated using differential scanning calorimetry (DSC). Non-isothermal ice-crystallization rates and ice-crystallization temperatures are obtained from heat-flow measurements in a water-saturated commercial GDL at cooling rates of 2.5, 5, 10, and 25 K/min. Our previously developed isothermal ice-crystallization rate expression is extended to non-isothermal crystallization to predict ice-crystallization kinetics in a GDL at various cooling rates. Agreement between DSC experimental results and theory is good. Both show that as the cooling rate increases, ice-crystallization rates increase and crystallization temperatures decrease monotonically. Importantly, we find that the cooling rate during crystallization has a negligible effect on the crystallization rate when crystallization times are much faster than the time to decrease the sample temperature by the subcooling. Based on this finding, we propose a pseudo-isothermal method for obtaining non-isothermal crystallization kinetics using isothermal crystallization kinetics evaluated at the non-isothermal crystallization temperature.

438

Laboratory Measurements of the Drag Force on a Family of Two-Dimensional Ice Keel Models in a Two-Layer Flow  

Science Conference Proceedings (OSTI)

A review of the upper structure of the Arctic Ocean and its overlying ice cover suggests that significant potential exists for the generation of internal wave fields by the deeper drafts of the pressure ridge keels. Laboratory measurements are ...

H. D. Pite; D. R. Topham; B. J. van Hardenberg

1995-12-01T23:59:59.000Z

439

A Process Study of the Dependence of Ice Crystal Absorption on Particle Geometry: Application to Aircraft Radiometric Measurements of Cirrus Cloud in the Terrestrial Window Region  

Science Conference Proceedings (OSTI)

The processes that contribute to the absorption of infrared radiation by atmospheric ice crystals are studied. The processes are separated into the geometric optics (i.e., refraction, internal, and external reflection) and above-edge (i.e., the ...

A. J. Baran; P. N. Francis; P. Yang

2003-01-01T23:59:59.000Z

440

Low Temperature Combustion Demonstrator for High Efficiency Clean Combustion  

SciTech Connect

The project which extended from November 2005 to May of 2010 demonstrated the application of Low Temperature Combustion (LTC) with engine out NOx levels of 0.2 g/bhp-hr throughout the program target load of 12.6bar BMEP. The project showed that the range of loads could be extended to 16.5bar BMEP, therefore matching the reference lug line of the base 2007 MY Navistar 6.4L V8 engine. Results showed that the application of LTC provided a dramatic improvement over engine out emissions when compared to the base engine. Furthermore LTC improved thermal efficiency by over 5% from the base production engine when using the steady state 13 mode composite test as a benchmark. The key enablers included improvements in the air, fuel injection, and cooling systems made in Phases I and II. The outcome was the product of a careful integration of each component under an intelligent control system. The engine hardware provided the conditions to support LTC and the controller provided the necessary robustness for a stable combustion. Phase III provided a detailed account on the injection strategy used to meet the high load requirements. During this phase, the control strategy was implemented in a production automotive grade ECU to perform cycle-by-cycle combustion feedback on each of the engine cylinders. The control interacted on a cycle base with the injection system and with the Turbo-EGR systems according to their respective time constants. The result was a unique system that could, first, help optimize the combustion system and maintain high efficiency, and secondly, extend the steady state results to the transient mode of operation. The engine was upgraded in Phase IV with a Variable Valve Actuation system and a hybrid EGR loop. The impact of the more versatile EGR loop did not provide significant advantages, however the application of VVA proved to be an enabler to further extend the operation of LTC and gain considerable benefits in fuel economy and soot reduction. Finally, the transient demonstration was performed in Phase IV. The project demonstrated the achievement of meeting US10 emissions without NOx aftertreatment. The successful execution of the project has served to highlight the effectiveness of closely matched combustion predictive tools to engine testing. It has further served to highlight the importance of key technologies and future areas of research and development. In this regard, recommendations are made towards further improvements in the areas of engine hardware, fuel injection systems, controls and fuels.

Ojeda, William de

2010-07-31T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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441

Transportable Combustion Turbine Demonstration Project  

Science Conference Proceedings (OSTI)

New York State Electric and Gas Corporation (NYSEG) installed a 7.15-MW Solar® Taurus™ 70 (nominal 7 MW) gas combustion turbine (CT) at its State Street substation in Auburn, New York. As a demonstration project supported through EPRI's Tailored Collaboration (TC) program, it is intended to aid in better understanding the "complete picture" for siting this particular technology as a distributed resource (DR).

2001-12-14T23:59:59.000Z

442

Control circuit for combustion systems  

SciTech Connect

A control circuit is described for gas fired burners and the like such as are employed in commercial laundry fabric ironers requiring the energization of a blower motor and the resulting opening of a gas valve and ignition of a gas burner only after an air pressure sensitive switch is actuated through the operation of the blower motor for purging the system of combustible gases.

Kamberg, E.

1981-11-10T23:59:59.000Z

443

Oil shale combustion/retorting  

SciTech Connect

The Morgantown Energy Technology Center (METC) conducted a number of feasibility studies on the combustion and retorting of five oil shales: Celina (Tennessee), Colorado, Israeli, Moroccan, and Sunbury (Kentucky). These studies generated technical data primarily on (1) the effects of retorting conditions, (2) the combustion characteristics applicable to developing an optimum process design technology, and (3) establishing a data base applicable to oil shales worldwide. During the research program, METC applied the versatile fluidized-bed process to combustion and retorting of various low-grade oil shales. Based on METC's research findings and other published information, fluidized-bed processes were found to offer highly attractive methods to maximize the heat recovery and yield of quality oil from oil shale. The principal reasons are the fluidized-bed's capacity for (1) high in-bed heat transfer rates, (2) large solid throughput, and (3) selectivity in aromatic-hydrocarbon formation. The METC research program showed that shale-oil yields were affected by the process parameters of retorting temperature, residence time, shale particle size, fluidization gas velocity, and gas composition. (Preferred values of yields, of course, may differ among major oil shales.) 12 references, 15 figures, 8 tables.

Not Available

1983-05-01T23:59:59.000Z

444

Is combustion of plastics desirable?  

Science Conference Proceedings (OSTI)

Managing waste will always entail some tradeoffs. All of the three options--recycling, landfilling and combustion--have some disadvantages. Even landfilling, which produces no emissions, fails to take advantage of the energy value inherent in plastic. Waste combustion, on the other hand, recovers the energy in plastic materials and reduces the volume of disposed solid waste by up to 90% of its initial preburn volumes. However, this management option generates emissions and produces an ash residue that must be managed. As demonstrated by recent test burns, improvements in combustion and air-pollution-control technology have dramatically reduced the health risks from emissions and ash. Recent studies have shown that plastics--in quantities even higher than those normally found in municipal solid waste--do not adversely affect levels of emissions or the quality of ash from waste-to-energy facilities. In addition, waste-to-energy facilities may be a relatively economical source of fuel, and may be a more economic solution to waste management than the other available options. A waste-to-energy plant generally produces electricity that is sold to the electric utilities for approximately six cents per kilowatt-hour, a rate that is competitive with those offered by nuclear power plants and power plants that generate energy by burning fossil fuels.

Piasecki, B.; Rainey, D. [Rensselaer Polytechnic Inst., Troy, NY (United States). Lally School of Management and Technology; Fletcher, K.

1998-07-01T23:59:59.000Z

445

FEM analysis of in-flight ice break-up  

Science Conference Proceedings (OSTI)

Using a fracture mechanics framework, this paper presents a finite element method to simulate the break-up of ice accreted on the wings of aircraft. The fully automated ice break-up module is integrated in FENSAP-ICE [1,2], which is an in-flight ice ... Keywords: Finite element methods, Fracture mechanics, Ice break-up, Ice shedding, In-flight icing, Multi-physics phenomenon

Shiping Zhang; Oubai El Kerdi; Rooh A. Khurram; Wagdi G. Habashi

2012-09-01T23:59:59.000Z

446

Remote sensing and GIS technology in the Global Land Ice Measurements from Space (GLIMS) Project  

Science Conference Proceedings (OSTI)

Global Land Ice Measurements from Space (GLIMS) is an international consortium established to acquire satellite images of the world's glaciers, analyze them for glacier extent and changes, and to assess these change data in terms of forcings. The consortium ... Keywords: Database, Glaciers, Open-source GIS, Remote sensing

Bruce Raup; Andreas Kääb; Jeffrey S. Kargel; Michael P. Bishop; Gordon Hamilton; Ella Lee; Frank Paul; Frank Rau; Deborah Soltesz; Siri Jodha Singh Khalsa; Matthew Beedle; Christopher Helm

2007-01-01T23:59:59.000Z

447

Minimizing Discomfort during the injection of Radiesse™ with the use of either local anesthetic or ice  

E-Print Network (OSTI)

Comite SL, Storwick GS. Ice minimizes discomfort associatedeither local anesthetic or ice Stephen Comite MD 1 , Alexisinvolves the use of an ice cube for anesthesia. Ice has been

Comite, Stephen; Greene, Alexis; Cieszynski, Sabina A; Zaroovabeli, Pauline; Marks, Karen

2007-01-01T23:59:59.000Z

448

Ice Initiation by Aerosol Particles: Measured and Predicted Ice Nuclei Concentrations versus Measured Ice Crystal Concentrations in an Orographic Wave Cloud  

Science Conference Proceedings (OSTI)

The initiation of ice in an isolated orographic wave cloud was compared with expectations based on ice nucleating aerosol concentrations and with predictions from new ice nucleation parameterizations applied in a cloud parcel model. Measurements ...

T. Eidhammer; P. J. DeMott; A. J. Prenni; M. D. Petters; C. H. Twohy; D. C. Rogers; J. Stith; A. Heymsfield; Z. Wang; K. A. Pratt; K. A. Prather; S. M. Murphy; J. H. Seinfeld; R. Subramanian; S. M. Kreidenweis

2010-08-01T23:59:59.000Z

449

Sandia Combustion Research Program: Annual report, 1986  

DOE Green Energy (OSTI)

This report presents research results of the past year, divided thematically into some ten categories. Publications and presentations arising from this work are included in the appendix. Our highlighted accomplishment of the year is the announcement of the discovery and demonstration of the RAPRENOx process. This new mechanism for the elimination of nitrogen oxides from essentially all kinds of combustion exhausts shows promise for commercialization, and may eventually make a significant contribution to our nation's ability to control smog and acid rain. The sections of this volume describe the facility's laser and computer system, laser diagnostics of flames, combustion chemistry, reacting flows, liquid and solid propellant combustion, mathematical models of combustion, high-temperature material interfaces, studies of engine/furnace combustion, coal combustion, and the means of encouraging technology transfer. 182 refs., 170 figs., 12 tabs.

Not Available

1986-01-01T23:59:59.000Z

450

NETL: IEP – Post-Combustion CO2 Emissions Control - Characterization and  

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

Characterization and Prediction of Oxy-Combustion Impacts in Existing Coal-fired Boilers Characterization and Prediction of Oxy-Combustion Impacts in Existing Coal-fired Boilers Project No.: DE-NT0005288 Pilot-scale 100 kW oxy-fuel combustor Pilot-scale 100 kW oxy-fuel combustor Reaction Engineering International will conduct multi-scale experiments, coupled with mechanism development and computational fluid dynamics modeling, to evaluate the impacts of retrofitting existing coal-fired boilers for oxy-combustion. Test data will be obtained from oxy-combustion experiments at the 0.1-kilowatt (kW), 100-kW, and 1.2-megawatt scale. Related Papers and Publications: Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers [PDF-9MB] (Nov 2013) Final Project Review Meeting, Pittsburgh, PA, November 6, 2013. Characterization of Oxy-Combustion Impacts in Existing Coal-Fired Boilers [PDF-1.67MB] (July 2013)

451

Comparative study of combustion product emissions of Pakistani coal briquettes and traditional Pakistani domestic fuels  

DOE Green Energy (OSTI)

A comparative emissions study was conducted on combustion products of various solid domestic cooking fuels; the objective was to compare relative levels of organic and inorganic toxic emissions from traditional Pakistani fuels (wood, wood charcoal, and dried animal dung) with manufactured low-rank coal briquettes (Lakhra and Sor- Range coals) under conditions simulating domestic cooking. A small combustion shed 12 m[sup 3] internal volume, air exchange rate 14 h[sup [minus]1] was used to simulate south Asian cooking rooms. 200-g charges of the various fuels were ignited in an Angethi stove located inside the shed, then combusted to completion; effluents from this combustion were monitored as a function of time. Measurements were made of respirable particulates, volatile and semi-volatile organics, CO, SO[sub 2], and NO[sub x]. Overall it appears that emissions from coal briquettes containing combustion amendments (slaked lime, clay, and potassium nitrate oxidizer) are no greater than emissions from traditional fuels, and in some cases are significantly lower; generally, emissions are highest for all fuels in the early stages of combustion.

Wachter, E.A.; Gammage, R.B.; Haas, J.W. III; Wilson, D.L. (Oak Ridge National Lab., TN (United States)); DePriest, J.C.; Wade, J. (Midwest Technical, Inc., Oak Ridge, TN (United States)); Ahmad, N.; Sibtain, F.; Zahid Raza, M. (Pakistan Council of Scientific and Industrial Research Labs., Karachi (Pakistan))

1992-10-01T23:59:59.000Z

452

Comparative study of combustion product emissions of Pakistani coal briquettes and traditional Pakistani domestic fuels  

DOE Green Energy (OSTI)

A comparative emissions study was conducted on combustion products of various solid domestic cooking fuels; the objective was to compare relative levels of organic and inorganic toxic emissions from traditional Pakistani fuels (wood, wood charcoal, and dried animal dung) with manufactured low-rank coal briquettes (Lakhra and Sor- Range coals) under conditions simulating domestic cooking. A small combustion shed 12 m{sup 3} internal volume, air exchange rate 14 h{sup {minus}1} was used to simulate south Asian cooking rooms. 200-g charges of the various fuels were ignited in an Angethi stove located inside the shed, then combusted to completion; effluents from this combustion were monitored as a function of time. Measurements were made of respirable particulates, volatile and semi-volatile organics, CO, SO{sub 2}, and NO{sub x}. Overall it appears that emissions from coal briquettes containing combustion amendments (slaked lime, clay, and potassium nitrate oxidizer) are no greater than emissions from traditional fuels, and in some cases are significantly lower; generally, emissions are highest for all fuels in the early stages of combustion.

Wachter, E.A.; Gammage, R.B.; Haas, J.W. III; Wilson, D.L. [Oak Ridge National Lab., TN (United States); DePriest, J.C.; Wade, J. [Midwest Technical, Inc., Oak Ridge, TN (United States); Ahmad, N.; Sibtain, F.; Zahid Raza, M. [Pakistan Council of Scientific and Industrial Research Labs., Karachi (Pakistan)

1992-10-01T23:59:59.000Z

453

System issues and tradeoffs associated with syngas production and combustion  

DOE Green Energy (OSTI)

The purpose of this article is to provide an overview of the basic technology of coal gasification for the production of syngas and the utilization of that syngas in power generation. The common gasifier types, fixed/moving bed, fluidized bed, entrained flow, and transport, are described, and accompanying typical product syngas compositions are shown for different coal ranks. Substantial variation in product gas composition is observed with changes in gasifier and coal feed type. Fuel contaminants such as sulfur, nitrogen, ash, as well as heavy metals such as mercury, arsenic, and selenium, can be removed to protect the environment and downstream processes. A variety of methods for syngas utilization for power production are discussed, including both present (gas turbine and internal combustion engines) and future technologies, including oxy-fuel, chemical looping, fuel cells, and hybrids. Goals to improve system efficiencies, further reduce NOx emissions, and provide options for CO2 sequestration require advancements in many aspects of IGCC plants, including the combustion system. Areas for improvements in combustion technology that could minimize these tradeoffs between cost, complexity, and performance are discussed.

Casleton, K.H.; Richards, G.A.; Breault, R.W.

2008-06-01T23:59:59.000Z

454

Surrogate Model Development for Fuels for Advanced Combustion Engines  

Science Conference Proceedings (OSTI)

The fuels used in internal-combustion engines are complex mixtures of a multitude of different types of hydrocarbon species. Attempting numerical simulations of combustion of real fuels with all of the hydrocarbon species included is highly unrealistic. Thus, a surrogate model approach is generally adopted, which involves choosing a few representative hydrocarbon species whose overall behavior mimics the characteristics of the target fuel. The present study proposes surrogate models for the nine fuels for advanced combustion engines (FACE) that have been developed for studying low-emission, high-efficiency advanced diesel engine concepts. The surrogate compositions for the fuels are arrived at by simulating their distillation profiles to within a maximum absolute error of 4% using a discrete multi-component (DMC) fuel model that has been incorporated in the multi-dimensional computational fluid dynamics (CFD) code, KIVA-ERC-CHEMKIN. The simulated surrogate compositions cover the range and measured concentrations of the various hydrocarbon classes present in the fuels. The fidelity of the surrogate fuel models is judged on the basis of matching their specific gravity, lower heating value, hydrogen/carbon (H/C) ratio, cetane number, and cetane index with the measured data for all nine FACE fuels.

Anand, Krishnasamy [University of Wisconsin, Madison; Ra, youngchul [University of Wisconsin, Madison; Reitz, Rolf [University of Wisconsin; Bunting, Bruce G [ORNL

2011-01-01T23:59:59.000Z

455

NETL: IEP – Post-Combustion CO2 Emissions Control - Oxy-Combustion Boiler  

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

Oxy-Combustion Boiler Material Development Oxy-Combustion Boiler Material Development Project No.: DE-NT0005262 CLICK ON IMAGE TO ENLARGE Foster Wheeler Oxy-combustion CFD Graphic The objectives of this Foster Wheeler Corporation-managed program are to assess the corrosion characteristics of oxy-combustion relative to air-fired combustion; identify the corrosion mechanisms involved; and determine the effects of oxy-combustion on conventional boiler tube materials, conventional protective coatings, and alternative materials and coatings when operating with high to low sulfur coals. The program involves the prediction of oxy-combustion gas compositions by computational fluid dynamic calculations, exposure of coupons of boiler materials and coverings coated with coal ash deposit to simulated oxy-combustion gases in electric

456

NISTIR 6458 Characterization of the Inlet Combustion Air in  

E-Print Network (OSTI)

NISTIR 6458 Characterization of the Inlet Combustion Air in NIST's Reference Spray Combustion January 2000 #12;ii Contents page Introduction 1 Reference Spray Combustion Facility 3 Numerical;1 Characterization of the Inlet Combustion Air in NIST's Reference Spray Combustion Facility: Effect of Vane Angle

Magee, Joseph W.

457

International Fuel Technology Inc | Open Energy Information  

Open Energy Info (EERE)

Fuel Technology Inc Fuel Technology Inc Jump to: navigation, search Name International Fuel Technology Inc Place St. Louis, Missouri Zip 63105 Product Supplier of environmentally friendly surfactant-based fuel additives designed to significantly reduce harmful emissions produced from internal combustion engines. References International Fuel Technology Inc[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. International Fuel Technology Inc is a company located in St. Louis, Missouri . References ↑ "International Fuel Technology Inc" Retrieved from "http://en.openei.org/w/index.php?title=International_Fuel_Technology_Inc&oldid=347044" Categories: Clean Energy Organizations

458

ENGINE COMBUSTION CONTROL VIA FUEL REACTIVITY ...  

A compression ignition engine uses two or more fuel charges having two or more reactivities to control the timing and duration of combustion. In a ...

459

Investigation of Solution Combustion Synthesis and Precipitation ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of Solution Combustion Synthesis and Precipitation Synthesis Conditions on TiO2 and ZnO Nanopowder Characteristics

460

High Performance Alloys for Advanced Combustion Systems  

Science Conference Proceedings (OSTI)

For steam turbines, it is necessary to raise temperatures in excess of 700?C. For gas turbines, raising the temperature also works but migrating the combustion ...

Note: This page contains sample records for the topic "ice internal combustion" 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

Session Overview: Heterogeneous Combustion Randall E. Winans...  

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

Heterogeneous Combustion Randall E. Winans, Session Chair X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA Heterogeneous...

462

Pyrolysis reactor and fluidized bed combustion chamber  

DOE Patents (OSTI)

A solid carbonaceous material is pyrolyzed in a descending flow pyrolysis reactor in the presence of a particulate source of heat to yield a particulate carbon containing solid residue. The particulate source of heat is obtained by educting with a gaseous source of oxygen the particulate carbon containing solid residue from a fluidized bed into a first combustion zone coupled to a second combustion zone. A source of oxygen is introduced into the second combustion zone to oxidize carbon monoxide formed in the first combustion zone to heat the solid residue to the temperature of the particulate source of heat.

Green, Norman W. (Upland, CA)

1981-01-06T23:59:59.000Z

463

Combustion Process Contact NETL Technology Transfer Group  

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

the Reactivity and Capacity of Oxygen Carriers for the Chemical Looping Combustion Process Contact NETL Technology Transfer Group techtransfer@netl.doe.gov February 2013 This...

464

Vehicle Technologies Office: Combustion and Emission Control  

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

and fuel formulation to arrive at the most cost-effective approach to optimizing advanced combustion engine efficiency and performance while reducing emissions to near-zero levels....

465

Combustion turbine operation and optimization model.  

E-Print Network (OSTI)

??Combustion turbine performance deterioration, quantified by loss of system power, is an artifact of increased inlet air temperature and continuous degradation of the machine. Furthermore,… (more)

Sengupta, Jeet

2012-01-01T23:59:59.000Z

466

Premixed Combustion of Hydrogen Augmented Natural Gas  

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

premixed combustion * Effective for emission reduction with natural gas * High hydrogen flame speed requires care in premixer design for SGH fuels * UC Irvine study quantifies...

467

2, 4378, 2006 Ice-driven CO2  

E-Print Network (OSTI)

- dred thousand years, CO2 and ice volume (marine 18 O) have varied in phase both at the 41 000-yearCPD 2, 43­78, 2006 Ice-driven CO2 feedback on ice volume W. F. Ruddiman Title Page Abstract Discussions is the access reviewed discussion forum of Climate of the Past Ice-driven CO2 feedback on ice

Paris-Sud XI, Université de

468

Hydrogen program combustion research: Three dimensional computational modeling  

DOE Green Energy (OSTI)

We have significantly increased our computational modeling capability by the addition of a vertical valve model in KIVA-3, code used internationally for engine design. In this report the implementation and application of the valve model is described. The model is shown to reproduce the experimentally verified intake flow problem examined by Hessel. Furthermore, the sensitivity and performance of the model is examined for the geometry and conditions of the hydrogen-fueled Onan engine in development at Sandia National Laboratory. Overall the valve model is shown to have comparable accuracy as the general flow simulation capability in KIVA-3, which has been well validated by past comparisons to experiments. In the exploratory simulations of the Onan engine, the standard use of the single kinetic reaction for hydrogen oxidation was found to be inadequate for modeling the hydrogen combustion because of its inability to describe both the observed laminar flame speed and the absence of autoignition in the Onan engine. We propose a temporary solution that inhibits the autoignition without sacrificing the ability to model spark ignition. In the absence of experimental data on the Onan engine, a computational investigation was undertaken to evaluate the importance of modeling the intake flow on the combustion and NO{sub x} emissions. A simulation that began with the compression of a quiescent hydrogen-air mixture was compared to a simulation of the full induction process with resolved opening and closing of the intake valve. Although minor differences were observed in the cylinder-averaged pressure, temperature, bulk-flow kinetic energy and turbulent kinetic energy, large differences where observed in the hydrogen combustion rate and NO{sub x} emissions. The flow state at combustion is highly heterogeneous and sensitive to the details of the bulk and turbulent flow and that an accurate simulation of the Onan engine must include the modeling of the air-fuel induction.

Johnson, N.L.; Amsden, A.A.; Butler, T.D.

1995-05-01T23:59:59.000Z

469

Climate, Ocean and Sea Ice Modeling (COSIM)  

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

Earth, Space Sciences » Earth, Space Sciences » Climate, Ocean and Sea Ice Modeling (COSIM) Climate, Ocean and Sea Ice Modeling (COSIM) The COSIM project develops advanced ocean and ice models for evaluating the role of ocean and ice in high-latitude climate change and projecting the impacts of high-latitude change on regions throughout the globe. Get Expertise Phil Jones COSIM Email Matthew Hecht COSIM Email Elizabeth Hunke COSIM Email Mat Maltrud COSIM Email Bill Lipscomb COSIM Email Scott Elliott COSIM Email Todd Ringler COSIM Email We are also developing a set of next-generation ocean and ice models with variable resolution horizontal grids to focus resolution on regions of interest or regions where specific processes (like eddies) need to be resolved. Summary The COSIM project develops advanced ocean and ice models for evaluating the

470

ice rheology in HadCM3  

E-Print Network (OSTI)

Abstract. We present results of an implementation of the Elastic Viscous Plastic (EVP) sea ice dynamics scheme into the Hadley Centre coupled ocean-atmosphere climate model HadCM3. Although the large-scale simulation of sea ice in HadCM3 is quite good with this model, the lack of a full dynamical model leads to errors in the detailed representation of sea ice and limits our confidence in its future predictions. We find that introducing the EVP scheme results in a worse initial simulation of the sea ice. This paper documents various enhancements made to improve the simulation, resulting in a sea ice simulation that is better than the original HadCM3 scheme overall. Importantly, it is more physically based and provides a more solid foundation for future development. We then consider the interannual variability of the sea ice in the new model and demonstrate improvements over the HadCM3 simulation. 1

W. M. Connolley; A. B. Keen; A. J. Mclaren

2006-01-01T23:59:59.000Z

471

Dependence of Sea Ice Yield-Curve Shape on Ice Thickness  

Science Conference Proceedings (OSTI)

In this note, the authors discuss the contribution that frictional sliding of ice floes (or floe aggregates) past each other and pressure ridging make to the plastic yield curve of sea ice. Using results from a previous study that explicitly ...

Alexander V. Wilchinsky; Daniel L. Feltham

2004-12-01T23:59:59.000Z

472

Modeling Thermodynamic Ice–Ocean Interactions at the Base of an Ice Shelf  

Science Conference Proceedings (OSTI)

Models of ocean circulation beneath ice shelves are driven primarily by the heat and freshwater fluxes that are associated with phase changes at the ice–ocean boundary. Their behavior is therefore closely linked to the mathematical description of ...

David M. Holland; Adrian Jenkins

1999-08-01T23:59:59.000Z

473

A Thermodynamic Coupled Ice-Ocean Model of the Marginal Ice Zone  

Science Conference Proceedings (OSTI)

A coupled ice-ocean model for thermodynamic growth of sea ice suitable for coupling with a similar dynamic model is considered. The model is balanced locally in that no horizontal (or vertical) advection or diffusion of properties are considered. ...

Lars Petter Røed

1984-12-01T23:59:59.000Z

474

Assessment of Aircraft Icing Potential and Maximum Icing Altitude from Geostationary Meteorological Satellite Data  

Science Conference Proceedings (OSTI)

A satellite product that displays regions of aircraft icing potential, along with corresponding cloud-top heights, has been developed using data from the Geostationary Operational Environmental Satellite (GOES) imager and sounder. The icing ...

Gary P. Ellrod; Andrew A. Bailey

2007-02-01T23:59:59.000Z

475

Measurement of South Pole ice transparency with the IceCube LED calibration system  

E-Print Network (OSTI)

The IceCube Neutrino Observatory, approximately 1 km^3 in size, is now complete with 86 strings deployed in the Antarctic ice. IceCube detects the Cherenkov radiation emitted by charged particles passing through or created in the ice. To realize the full potential of the detector, the properties of light propagation in the ice in and around the detector must be well understood. This report presents a new method of fitting the model of light propagation in the ice to a data set of in-situ light source events collected with IceCube. The resulting set of derived parameters, namely the measured values of scattering and absorption coefficients vs. depth, is presented and a comparison of IceCube data with simulations based on the new model is shown.

IceCube Collaboration; M. G. Aartsen; R. Abbasi; Y. Abdou; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; D. Altmann; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; V. Baum; R. Bay; J. J. Beatty; S. Bechet; J. Becker Tjus; K. -H. Becker; M. Bell; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; A. Bernhard; D. Bertrand; D. Z. Besson; G. Binder; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; S. Bohaichuk; C. Bohm; D. Bose; S. Böser; O. Botner; L. Brayeur; A. M. Brown; R. Bruijn; J. Brunner; S. Buitink; M. Carson; J. Casey; M. Casier; D. Chirkin; B. Christy; K. Clark; F. Clevermann; S. Cohen; D. F. Cowen; A. H. Cruz Silva; M. Danninger; J. Daughhetee; J. C. Davis; C. De Clercq; S. De Ridder; P. Desiati; M. de With; T. DeYoung; J. C. Díaz-Vélez; M. Dunkman; R. Eagan; B. Eberhardt; J. Eisch; R. W. Ellsworth; S. Euler; P. A. Evenson; O. Fadiran; A. R. Fazely; A. Fedynitch; J. Feintzeig; T. Feusels; K. Filimonov; C. Finley; T. Fischer-Wasels; S. Flis; A. Franckowiak; R. Franke; K. Frantzen; T. Fuchs; T. K. Gaisser; J. Gallagher; L. Gerhardt; L. Gladstone; T. Glüsenkamp; A. Goldschmidt; G. Golup; J. A. Goodman; D. Góra; D. Grant; A. Groß; M. Gurtner; C. Ha; A. Haj Ismail; A. Hallgren; F. Halzen; K. Hanson; D. Heereman; P. Heimann; D. Heinen; K. Helbing; R. Hellauer; S. Hickford; G. C. Hill; K. D. Hoffman; R. Hoffmann; A. Homeier; K. Hoshina; W. Huelsnitz; P. O. Hulth; K. Hultqvist; S. Hussain; A. Ishihara; E. Jacobi; J. Jacobsen; G. S. Japaridze; K. Jero; O. Jlelati; B. Kaminsky; A. Kappes; T. Karg; A. Karle; J. L. Kelley; J. Kiryluk; F. Kislat; J. Kläs; S. R. Klein; J. -H. Köhne; G. Kohnen; H. Kolanoski; L. Köpke; C. Kopper; S. Kopper; D. J. Koskinen; M. Kowalski; M. Krasberg; G. Kroll; J. Kunnen; N. Kurahashi; T. Kuwabara; M. Labare; H. Landsman; M. J. Larson; M. Lesiak-Bzdak; J. Leute; J. Lünemann; J. Madsen; R. Maruyama; K. Mase; H. S. Matis; F. McNally; K. Meagher; M. Merck; P. Mészáros; T. Meures; S. Miarecki; E. Middell; N. Milke; J. Miller; L. Mohrmann; T. Montaruli; R. Morse; R. Nahnhauer; U. Naumann; H. Niederhausen; S. C. Nowicki; D. R. Nygren; A. Obertacke; S. Odrowski; A. Olivas; M. Olivo; A. O'Murchadha; L. Paul; J. A. Pepper; C. Pérez de los Heros; C. Pfendner; D. Pieloth; N. Pirk; J. Posselt; P. B. Price; G. T. Przybylski; L. Rädel; K. Rawlins; P. Redl; E. Resconi; W. Rhode; M. Ribordy; M. Richman; B. Riedel; J. P. Rodrigues; C. Rott; T. Ruhe; B. Ruzybayev; D. Ryckbosch; S. M. Saba; T. Salameh; H. -G. Sander; M. Santander; S. Sarkar; K. Schatto; M. Scheel; F. Scheriau; T. Schmidt; M. Schmitz; S. Schoenen; S. Schöneberg; L. Schönherr; A. Schönwald; A. Schukraft; L. Schulte; O. Schulz; D. Seckel; S. H. Seo; Y. Sestayo; S. Seunarine; C. Sheremata; M. W. E. Smith; M. Soiron; D. Soldin; G. M. Spiczak; C. Spiering; M. Stamatikos; T. Stanev; A. Stasik; T. Stezelberger; R. G. Stokstad; A. Stößl; E. A. Strahler; R. Ström; G. W. Sullivan; H. Taavola; I. Taboada; A. Tamburro; S. Ter-Antonyan; S. Tilav; P. A. Toale; S. Toscano; M. Usner; D. van der Drift; N. van Eijndhoven; A. Van Overloop; J. van Santen; M. Vehring; M. Voge; M. Vraeghe; C. Walck; T. Waldenmaier; M. Wallraff; R. Wasserman; Ch. Weaver; M. Wellons; C. Wendt; S. Westerhoff; N. Whitehorn; K. Wiebe; C. H. Wiebusch; D. R. Williams; H. Wissing; M. Wolf; T. R. Wood; C. Xu; D. L. Xu; X. W. Xu; J. P. Yanez; G. Yodh; S. Yoshida; P. Zarzhitsky; J. Ziemann; S. Zierke; A. Zilles; M. Zoll

2013-01-22T23:59:59.000Z

476

Automated Ice-Tethered Profilers for Seawater Observations under Pack Ice in All Seasons  

Science Conference Proceedings (OSTI)

An automated, easily deployed Ice-Tethered Profiler (ITP) instrument system, developed for deployment on perennial sea ice in the polar oceans to measure changes in upper ocean water properties in all seasons, is described, and representative ...

R. Krishfield; J. Toole; A. Proshutinsky; M-L. Timmermans

2008-11-01T23:59:59.000Z

477

Ice Accretion on Wires and Anti-Icing Induced by Joule Effect  

Science Conference Proceedings (OSTI)

This study concerns both the formation of ice accreted around wires due to rotation from gravitational and aerodynamic forces, and the anti-icing induced by the Joule effect. The experiments have been carried out in an instrumented wind tunnel ...

P. Personne; J-F. Gayet

1988-02-01T23:59:59.000Z

478

Siple Coast Ice Streams in a General Antarctic Ice Sheet Model  

Science Conference Proceedings (OSTI)

In an earlier paper by Verbitsky and Saltzman, a vertically integrated, high-resolution, nonlinearly viscous, nonisothermal ice sheet model was presented to calculate the “present-day” equilibrium regime of the Antarctic ice sheet. Steady-state ...

Mikhail Verbitsky

2005-07-01T23:59:59.000Z

479

Manifold methods for methane combustion  

SciTech Connect

Objective is to develop a new method for studying realistic chemistry in turbulent methane combustion with NO{sub x} mechanism. The realistic chemistry is a simplification to a more detailed chemistry based on the manifold method; accuracy is determined by interaction between the transport process and the chemical reaction. In this new (tree) method, probability density function or partially stirred reactor calculations are performed. Compared with the reduced mechanism, manifold, and tabulation methods, the new method overcomes drawbacks of the reduced mechanism method and preserves the advantages of the manifold method. Accuracy is achieved by specifying the size of the cell.

Yang, B.; Pope, S.B. [Cornell Univ., Ithaca, NY (United States)

1995-12-31T23:59:59.000Z

480

Nanotechnology Combustion Sensors: Prototype Development  

Science Conference Proceedings (OSTI)

The release of nitrogen oxides (NOx) and sulfur dioxide (SO2) from the combustion of fossil fuels and other sources is linked to various ecosystem impacts and human health effects, including acid rain, coastal eutrophication, damage to forest ecosystems, chronic bronchitis, respiratory problems, and heart attacks. The U.S. Environmental Protection Agency (EPA) estimates that in 2003, total NOx and SO2 emissions from various sources in the United States were 20.8 million tons and 15.9 million tons, respec...

2008-12-23T23:59:59.000Z

Note: This page contains sample records for the topic "ice internal combustion" 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

Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS  

DOE Green Energy (OSTI)

Combustion chamber deposits (CCDs) in internal combustion engines have been studied by various techniques to understand the relationship of performance degradation with deposit quantity and structure. XPS, XAS, NMR, and elemental analysis have offered insight into the bulk structure of C, H, N, O and metal components [1]. MS has offered some information about compound structure, but results are limited due to the insolubility and complexity of the materials. Recent advances in MS have opened new possibilities for analysis of CCDs. Here we report initial findings on the carbon structure of these deposits determined by ESI-TOF-MS and MADLI-TOF-MS.

Reynolds, J G; Shields, S J; Roos, J W

2001-06-14T23:59:59.000Z

482

IceT users' guide and reference.  

Science Conference Proceedings (OSTI)

The Image Composition Engine for Tiles (IceT) is a high-performance sort-last parallel rendering library. In addition to providing accelerated rendering for a standard display, IceT provides the unique ability to generate images for tiled displays. The overall resolution of the display may be several times larger than any viewport that may be rendered by a single machine. This document is an overview of the user interface to IceT.

Moreland, Kenneth D.

2011-01-01T23:59:59.000Z

483

IceT users' guide and reference.  

Science Conference Proceedings (OSTI)

The Image Composition Engine for Tiles (IceT) is a high-performance sort-last parallel rendering library. In addition to providing accelerated rendering for a standard display, IceT provides the unique ability to generate images for tiled displays. The overall resolution of the display may be several times larger than any viewport that may be rendered by a single machine. This document is an overview of the user interface to IceT.

Moreland, Kenneth D.

2009-06-01T23:59:59.000Z

484

COMBUSTION RESEARCH PROGRAM. CHAPTER FROM ENERGY & ENVIRONMENT ANNUAL REPORT 1977  

E-Print Network (OSTI)

Applied to Turbulent Combustion Flows J. W. Daily and C.Metals from Pulverized Coal Combustion P. Sherman and F.Applied to Turbulent Combustion Flows J. W. Daily and C.

Authors, Various

2011-01-01T23:59:59.000Z

485

Ice in Clouds Experiment–Layer Clouds. Part II: Testing Characteristics of Heterogeneous Ice Formation in Lee Wave Clouds  

Science Conference Proceedings (OSTI)

Heterogeneous ice nucleation is a source of uncertainty in models that represent ice clouds. The primary goal of the Ice in Clouds Experiment–Layer Clouds (ICE-L) field campaign was to determine if a link can be demonstrated between ice ...

P. R. Field; A. J. Heymsfield; B. J. Shipway; P. J. DeMott; K. A. Pratt; D. C. Rogers; J. Stith; K. A. Prather

2012-03-01T23:59:59.000Z

486

Fire in the Ice, Winter 2005  

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

Understanding Methane Understanding Methane Hydrate Behavior .................... 1 Quantitative Assessment of Marine Gas Hydrates ............. 5 New Method for Gas Hydrate Production .............................. 8 Announcements .................. 12 * International Workshop * Chiba, Hedberg Abstracts * Chemists Highlight Hydrates * NETL Solicits Proposals * IODP Planning Two Cruises * Gulf of Mexico Expedition * TOUGH-Fx Training Offered Spotlight on Research ........ 16 Dr. Frank R. Rack CONTACT POINT Ray Boswell National Energy Technology Laboratory (304) 285-4541 (304) 285-4216 fax Ray.Boswell@netl.doe.gov The Fire in the Ice Newsletter is also available online at our website www.netl.doe.gov/scngo/ Natural%20Gas/hydrates T H E N A T I O N A L E N E R G Y T E C H N O L O G Y L A B O R A T O R Y M E T H A N E H Y D R A T E N E W S L E T T E R Vol. 5, Iss. 1

487

Microparticulate Ice Slurry For Renal Hypothermia: Laparoscopic...  

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

MICROPARTICULATE ICE SLURRY FOR RENAL HYPOTHERMIA : LAPAROSCOPIC PARTIAL NEPHRECTOMY IN A PORCINE MODEL Sergey Shikanov a * , Mark Wille a , Michael Large a , Aria Razmaria a ,...

488

Ice Fall Doctors 5, Changing Route  

E-Print Network (OSTI)

Base Camp. The recordings span a wide variety of topics from making and drinking chang to the work of Mount Everest's 'ice fall doctors'....

Loomis, Molly

489

Development of ice self-release mechanisms  

DOE Green Energy (OSTI)

This study reports the results of a series of experiments that investigated a thermal storage technology whereby slush ice is grown on a submerged cold surface, and the resultant growth of slush ice releases without auxiliary thermal or mechanical means. The process investigated consists of growing slush ice from an electrolyte solution of low molarity. The cold surface (substrate) upon which the slush ice forms is submerged in the bulk solution. As the buoyancy force on the ice crystals exceeds the adhesion of the slush ice to the cold surface, the slush ice is forced from the substrate and floats away to the top of the solution. The results of this study reveal the relative insensitivity of the