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Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Durability Evaluation of Urea SCR Catalysts for Heavy Duty Diesel Engines  

DOE Green Energy (OSTI)

Assess the potential long-term durability of various SCR catalyst formulations for mobile heavy duty diesel application.

Koshkarian, Kent

2000-08-20T23:59:59.000Z

2

Heavy-duty diesel engine oil aging effects on emissions.  

E-Print Network (OSTI)

??Diesel engines are highly reliable, durable and are used for wide range of applications with low fuel usage owing to its higher thermal efficiency compared… (more)

Dam, Mrinmoy.

2010-01-01T23:59:59.000Z

3

Analysis of parasitic losses in heavy duty diesel engines  

E-Print Network (OSTI)

Fuel economy of large, on-road diesel engines has become even more critical in recent years for engine manufactures, vehicle OEMs, and truck operators, in view of pending CO2 emission regulations. Demands for increased ...

James, Christopher Joseph

2012-01-01T23:59:59.000Z

4

Department of Mechanical and Nuclear Engineering Spring 2012 Heavy-Duty Diesel Engine Friction Reduction Testing and Analysis  

E-Print Network (OSTI)

PENNSTATE Department of Mechanical and Nuclear Engineering Spring 2012 Heavy-Duty Diesel Engine Friction Reduction Testing and Analysis Overview Volvo Group Powertrain Engineering is interested in increasing fuel efficiency through the reduction of parasitic friction and pumping losses. A test cell

Demirel, Melik C.

5

Materials-Enabled High-Efficiency (MEHE) Heavy-Duty Diesel Engines  

DOE Green Energy (OSTI)

The purpose of this Cooperative Research and Development Agreement (CRADA) between UTBattelle, Inc. and Caterpillar, Inc. was to improve diesel engine efficiency by incorporating advanced materials to enable higher combustion pressures and temperatures necessary for improved combustion. The project scope also included novel materials for use in advanced components and designs associated with waste-heat recovery and other concepts for improved thermal efficiency. Caterpillar initially provided ORNL with a 2004 Tier 2 C15 ACERT diesel engine (designed for on-highway use) and two 600 hp motoring dynamometers. The first year of the CRADA effort was focused on establishing a heavy-duty experimental engine research cell. First year activities included procuring, installing and commissioning the cell infrastructure. Infrastructure components consisted of intake air handling system, water tower, exhaust handling system, and cell air conditioning. Other necessary infrastructure items included the fuel delivery system and bottled gas handling to support the analytical instrumentation. The second year of the CRADA focused on commissioning the dynamometer system to enable engine experimentation. In addition to the requirements associated with the dynamometer controller, the electrical system needed a power factor correction system to maintain continuity with the electrical grid. During the second year the engine was instrumented and baseline operated to confirm performance and commission the dynamometer. The engine performance was mapped and modeled according to requirements provided by Caterpillar. This activity was further supported by a Work-for-Others project from Caterpillar to evaluate a proprietary modeling system. A second Work-for-Others activity was performed to evaluate a novel turbocharger design. This project was highly successful and may lead to new turbocharger designs for Caterpillar heavy-duty diesel engines. During the third (and final) year of the CRADA, a novel valve material was evaluated to assess high temperature performance and durability. A series of prototype valves, composed of a unique nickel-alloy was placed in the engine head. The engine was aggressively operated using a transient test cycle for 200 hours. The valve recession was periodically measured to determine valve performance. Upon completion of the test the valves were removed and returned to Caterpillar for additional assessment. Industrial in-kind support was available throughout the project period. Review of the status and research results were carried out on a regular basis (meetings and telecons) which included direction for future work activities. A significant portion of the industrial support was in the form of information exchange and technical consultation.

Kass, M.; Veliz, M. (Caterpillar, Inc.)

2011-09-30T23:59:59.000Z

6

Characteristics of Emitted Carbonyl Compounds by using Biodiesel fuel with constant H2/O2 in a Heavy-Duty Diesel Engine.  

E-Print Network (OSTI)

??The emission tests were conducted under steady-state cycle condition in a heavy-duty diesel engine using 0% to 30% ratios of biodiesel fuel with constant H2/O2… (more)

Shih, Jia-Yu

2013-01-01T23:59:59.000Z

7

Implications to Heavy-Duty Diesel Emissions  

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

ORNL/TM-200015 ORNL/TM-200015 MANAGED BY UT-BATTELLE FOR THE DEPARTMENT OF ENERGY A Vector Approach to Regression Analysis and Its Implications to Heavy-Duty Diesel Emissions November 2000 Prepared by H. 1. McAdams AccaMath Services Carrolton, Illinois R. W. Crawford R.W. Crawford Energy Systems Tucson, Arizona G. R. Hadder Oak Ridge National Laboratory Oak Ridge, Tennessee - UT-BATTELLE -. ORNL-27 (4.00) II ORNL/TM-200015 A VECTOR APPROACH TO REGRESSION ANALYSIS AND ITS APPLICATION TO HEAVY-DUTY DIESEL EMISSIONS H. T. McAdams AccaMath Services Carrollton, Illinois R. W. Crawford RWCrawford Energy Systems Tucson, Arizona G. R. Hadder Oak Ridge National Laboratory Oak Ridge, Tennessee November 2000 Prepared for Office of Energy Effkiency and Renewable Energy

8

Development of high temperature liquid lubricants for low-heat rejection heavy duty diesel engines  

DOE Green Energy (OSTI)

Objective was to develop a liquid lubricant that will allow advanced diesel engines to operate at top ring reversal temperatures approaching 500 C and lubricant sump temperatures approaching 250 C. Base stock screening showed that aromatic esters and diesters has the lowest deposit level, compared to polyol esters, poly-alpha-olefins, or refined mineral oil of comparable viscosity. Classical aryl and alkyl ZDP antiwear additives are ineffective in reducing wear with aromatic esters; the phosphate ester was a much better antiwear additive, and polyol esters are more amenable to ZDP treatment. Zeolites and clays were evaluated for filtration.

Wiczynski, T.A.; Marolewski, T.A.

1993-03-01T23:59:59.000Z

9

Aftertreatment Technologies for Off-Highway Heavy-Duty Diesel Engines  

Science Conference Proceedings (OSTI)

The objective of this program was to explore a combination of advanced injection control and urea-selective catalytic reduction (SCR) to reduce the emissions of oxides of nitrogen (NOx) and particulate matter (PM) from a Tier 2 off-highway diesel engine to Tier 3 emission targets while maintaining fuel efficiency. The engine used in this investigation was a 2004 4.5L John Deere PowerTechTM; this engine was not equipped with exhaust gas recirculation (EGR). Under the original CRADA, the principal objective was to assess whether Tier 3 PM emission targets could be met solely by increasing the rail pressure. Although high rail pressure will lower the total PM emissions, it has a contrary effect to raise NOx emissions. To address this effect, a urea-SCR system was used to determine whether the enhanced NOx levels, associated with high rail pressure, could be reduced to Tier 3 levels. A key attraction for this approach is that it eliminates the need for a Diesel particulate filter (DPF) to remove PM emissions. The original CRADA effort was also performed using No.2 Diesel fuel having a maximum sulfur level of 500 ppm. After a few years, the CRADA scope was expanded to include exploration of advanced injection strategies to improve catalyst regeneration and to explore the influence of urea-SCR on PM formation. During this period the emission targets also shifted to meeting more stringent Tier 4 emissions for NOx and PM, and the fuel type was changed to ultra-low sulfur Diesel (ULSD) having a maximum sulfur concentration of 15 ppm. New discoveries were made regarding PM formation at high rail pressures and the influences of oxidation catalysts and urea-SCR catalysts. These results are expected to provide a pathway for lower PM and NOx emissions for both off- and on-highway applications. Industrial in-kind support was available throughout the project period. Review of the research results were carried out on a regular basis (annual reports and meetings) followed by suggestions for improvement in ongoing work and direction for future work. A significant portion of the industrial support was in the form of experimentation, data analysis, data exchange, and technical consultation.

Kass, M.D.

2008-07-15T23:59:59.000Z

10

Evaluating heavy-duty diesel engine aftertreatment devices with a split exhaust configuration.  

E-Print Network (OSTI)

??West Virginia University evaluated diesel oxidation catalysts (DOC) and lean-NOx catalysts as part of the Diesel Emissions Control-Sulfur Effects (DECSE) program. In order to perform… (more)

Corrigan, Eric R.

2001-01-01T23:59:59.000Z

11

Effects of diesel fuel combustion-modifier additives on In-cylinder soot formation in a heavy-duty Dl diesel engine.  

DOE Green Energy (OSTI)

Based on a phenomenological model of diesel combustion and pollutant-formation processes, a number of fuel additives that could potentially reduce in-cylinder soot formation by altering combustion chemistry have been identified. These fuel additives, or ''combustion modifiers'', included ethanol and ethylene glycol dimethyl ether, polyethylene glycol dinitrate (a cetane improver), succinimide (a dispersant), as well as nitromethane and another nitro-compound mixture. To better understand the chemical and physical mechanisms by which these combustion modifiers may affect soot formation in diesel engines, in-cylinder soot and diffusion flame lift-off were measured, using an optically-accessible, heavy-duty, direct-injection diesel engine. A line-of-sight laser extinction diagnostic was employed to measure the relative soot concentration within the diesel jets (''jetsoot'') as well as the rates of deposition of soot on the piston bowl-rim (''wall-soot''). An OH chemiluminescence imaging technique was utilized to measure the lift-off lengths of the diesel diffusion flames so that fresh oxygen entrainment rates could be compared among the fuels. Measurements were obtained at two operating conditions, using blends of a base commercial diesel fuel with various combinations of the fuel additives. The ethanol additive, at 10% by mass, reduced jet-soot by up to 15%, and reduced wall-soot by 30-40%. The other fuel additives also affected in-cylinder soot, but unlike the ethanol blends, changes in in-cylinder soot could be attributed solely to differences in the ignition delay. No statistically-significant differences in the diesel flame lift-off lengths were observed among any of the fuel additive formulations at the operating conditions examined in this study. Accordingly, the observed differences in in-cylinder soot among the fuel formulations cannot be attributed to differences in fresh oxygen entrainment upstream of the soot-formation zones after ignition.

Musculus, Mark P. (Sandia National Laboratories, Livermore, CA); Dietz, Jeff (The Lubrizol Corp.)

2005-07-01T23:59:59.000Z

12

Comparative study of heavy-duty engine operation with diesel fuel and ignition-improved methanol  

Science Conference Proceedings (OSTI)

Methanol can be made suitable for compression ignition engines by ignition-improving additives. The ignition improver demand can be minimized by increasing the compression ratio. The technical suitability of this fuel can be regarded as proven, since most of the problems connected with its use have been solved. Its economic viability, however, has still to be doubted. From an environmental point of view, ignition-improved methanol deserves great interest due to the total absence of soot in the exhaust and the considerably reduced NO/sub x/ emission.

Hardenberg, H.O.

1987-01-01T23:59:59.000Z

13

Alternative Fuels Data Center: Heavy-Duty Diesel Vehicle Vouchers - San  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Diesel Heavy-Duty Diesel Vehicle Vouchers - San Joaquin Valley to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Diesel Vehicle Vouchers - San Joaquin Valley on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Diesel Vehicle Vouchers - San Joaquin Valley on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Diesel Vehicle Vouchers - San Joaquin Valley on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Diesel Vehicle Vouchers - San Joaquin Valley on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Diesel Vehicle Vouchers - San Joaquin Valley on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Diesel Vehicle Vouchers - San Joaquin Valley on AddThis.com... More in this section... Federal

14

NOx Adsorbers for Heavy Duty Truck Engines-Testing and Simulation  

DOE Green Energy (OSTI)

This feasibility study of NOx adsorbers in heavy-duty diesel engines examined three configurations (dual-leg, single-leg and single-leg-bypass) in an integrated experimental setup, composed of a Detroit Diesel Class-8 truck engine, a catalyzed diesel particulate filter and the NOx absorber system. The setup also employed a reductant injection concept, sensors and advanced control strategies.

Hakim, N; Hoelzer, J.; Liu, Y.

2002-08-25T23:59:59.000Z

15

Effects of a Zeolite-Selective Catalytic Reduction System on Comprehensive Emissions from a Heavy-Duty Diesel Engine  

E-Print Network (OSTI)

and also from the same engine equipped with the exhaust aftertreatment system. The results have shown engine equipped with a zeolite urea-SCR aftertreatment system will be made to evaluate the effects to a baseline measurement from the same engine equipped with no exhaust aftertreatment system. The majority

Wu, Mingshen

16

Alternative fuels for heavy duty engines: Status of fleet trials  

DOE Green Energy (OSTI)

The overall objectives of Annex 3 are to collect, assess and disseminate data on the use of methanol and natural gas in heavy duty compression ignition engines. Originally, the objective was directed at methanol, but in 1990 the mandate of Annex 3 was broadened to include natural gas. This is the latest update on field trials using these two fuels. The report outlines progress being made and identifies major trends. The more important events since the last progress report include: the US Environmental Protection Agency (EPA) Certification of Detroit Diesel Corporation's 6V-92 methanol engine; the introduction of transit buses in Windsor, Ontario, Canada, using DDC methanol engines; an introduction of two DDC engined ethanol fueled transit buses at Regina, Saskatchewan, Canada; the testing of catalytic converters, by Detroit Diesel Corporation, with alcohol powered engines; the discontinuance of methanol in MAN engines/buses at Seattle Metro; a tender for over 100 methanol powered transit buses for South Coast Rapid Transit District (SCRTD), Los Angeles, California; the potential purchase of an additional 150 methanol powered buses for SCRTD, in addition to 10 buses for Sacramento Regional Transit District; and, the expanded interest of transit properties in using natural gas in both compressed natural gas (CNG) and liquefied natural gas (LNG) engines. 21 figs.

Not Available

1991-08-01T23:59:59.000Z

17

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Vehicle and Heavy-Duty Vehicle and Engine Search to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on AddThis.com... Heavy-Duty Vehicle and Engine Search Search our database to find and compare specific vehicles, engines, or hybrid propulsion systems and generate printable reports.

18

Natural Gas-optimized Advanced Heavy-duty Engine  

E-Print Network (OSTI)

Natural Gas-optimized Advanced Heavy-duty Engine Transportation Research PIER Transportation of natural gas vehicles as a clean alternative is currently limited to smaller engine displacements and spark ignition, which results in lower performance. A large displacement natural gas engine has

19

On-Road Remote Sensing of Heavy-duty Diesel Truck  

E-Print Network (OSTI)

On-Road Remote Sensing of Heavy-duty Diesel Truck Emissions in the Austin- San Marcos Area: August Denver, CO 80208 November 1998 UNIVERSITY Of DENVER #12;Remote Sensing of Heavy-duty Trucks in Austin be observed by probing the exhaust. In the process of measuring the ratios, the remote sensing unit results

Denver, University of

20

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Data  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Data Collection Methods to someone by E-mail Data Collection Methods to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Data Collection Methods on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Data Collection Methods on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Data Collection Methods on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Data Collection Methods on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Data Collection Methods on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Data Collection Methods on AddThis.com... Heavy-Duty Vehicle and Engine Data Collection Methods To maintain the Heavy-Duty Vehicle and Engine Search tool, the National

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

High temperature solid lubricant materials for heavy duty and advanced heat engines  

DOE Green Energy (OSTI)

Advanced engine designs incorporate higher mechanical and thermal loading to achieve efficiency improvements. This approach often leads to higher operating temperatures of critical sliding elements (e.g. piston ring/cylinder wall contacts and valve guides) which compromise the use of conventional and even advanced synthetic liquid lubricants. For these applications solid lubricants must be considered. Several novel solid lubricant composites and coatings designated PS/PM200 have been employed to dry and marginally oil lubricated contacts in advanced heat engines. These applications include cylinder kits of heavy duty diesels, and high temperature sterling engines, sidewall seals of rotary engines and various exhaust valve and exhaust component applications. The following paper describes the tribological and thermophysical properties of these tribomaterials and reviews the results of applying them to engine applications. Other potential tribological materials and applications are also discussed with particular emphasis to heavy duty and advanced heat engines.

DellaCorte, C.; Wood, J.C.

1994-10-01T23:59:59.000Z

22

Combustion Commonality and Differences Between HSDI and Heavy Duty Truck Engines  

DOE Green Energy (OSTI)

Experimental understanding of the diesel spray and combustion process at the fundamental level has helped advance the virtual lab simulation tools. The computational fluid dynamics (CFD)-based simulation has been globally verified in many engines, providing substantial credibility to the use of this technology in advanced engine development. This paper highlights the common aspects and differences between the smallbore HSDI and the larger displacement heavy-duty truck engine spray and combustion processes. Implications for combustion system strategies will be delineated. Detroit Diesel integrated ''Wired'' approach will be explained with pointers towards future tool enhancements.

Chen, Rong

2000-08-20T23:59:59.000Z

23

Review of Heavy-Duty Engine Combustion Research at Sandia National Laboratories  

DOE Green Energy (OSTI)

The objectives of this paper are to describe the research efforts in diesel engine combustion at Sandia National Laboratories' Combustion Research Facility and to provide recent experimental results. We have four diesel engine experiments supported by the Department of Energy, Office of Heavy Vehicle Technologies: a one-cylinder version of a Cummins heavy-duty engine, a diesel simulation facility, a one-cylinder Caterpillar engine to evaluate combustion of alternative fuels, and a homogeneous-charge, compression-ignition (HCCI) engine facility is under development. Recent experimental results to be discussed are: the effects of injection timing and diluent addition on late-combustion soot burnout, diesel-spray ignition and premixed-burn behavior, a comparison of the combustion characteristics of M85 (a mixture of 85% methanol and 15% gasoline) and DF2 (No.2 diesel reference fuel), and a description of our HCCI experimental program and modeling work.

Robert W. Carling; Gurpreet Singh

2000-06-19T23:59:59.000Z

24

Analysis of C1, C2, and C10 through C33 particle-phase and semi-volatile organic compound emissions from heavy-duty diesel engines  

E-Print Network (OSTI)

engines Aftertreatment technology Diesel particulate filter Chemical speciation a b s t r a c t To meet by individual aftertreatment components using the same engine and fuel has been assessed and published engine emissions have made it necessary to implement exhaust aftertreat- ment technology to lower

Wu, Mingshen

25

Performance evaluation of diesel particulate filters on heavy duty vehicles.  

E-Print Network (OSTI)

??Diesel particulate filters, or DPFs, are exhaust aftertreatment devices used to reduce exhaust emissions from diesel powered vehicles. Typical designs have a wall flow filter… (more)

Rosepiler, Stephen G.

2003-01-01T23:59:59.000Z

26

08FFL-0020Influence of High Fuel Rail Pressure and Urea Selective Catalytic Reduction on PM Formation in an Off-Highway Heavy-Duty Diesel Engine  

Science Conference Proceedings (OSTI)

The influence of fuel rail pressure (FRP) and urea-selective catalytic reduction (SCR) on particulate matter (PM) formation is investigated in this paper along with notes regarding the NOx and other emissions. Increasing FRP was shown to reduce the overall soot and total PM mass for four operating conditions. These conditions included two high speed conditions (2400 rpm at 540 and 270 Nm of torque) and two moderated speed conditions (1400 rpm at 488 and 325 Nm). The concentrations of CO2 and NOx increased with fuel rail pressure and this is attributed to improved fuel-air mixing. Interestingly, the level of unburned hydrocarbons remained constant (or increased slightly) with increased FRP. PM concentration was measured using an AVL smoke meter and scanning mobility particle sizer (SMPS); and total PM was collected using standard gravimetric techniques. These results showed that the smoke number and particulate concentrations decrease with increasing FRP. However the decrease becomes more gradual as very high rail pressures. Additionally, the total PM decreased with increasing FRP; however, the soluble organic fraction (SOF) reaches a maximum after which it declines with higher rail pressure. The total PM was collected for the two 1400 rpm conditions downstream of the engine, diesel oxidation catalyst, and a urea-SCR catalyst. The results show that significant PM reduction occurs in the SCR catalyst even during high rates of urea dosage. Analysis of the PM indicates that residual SOF is burned up in the SCR catalyst.

Kass, Michael D [ORNL; Domingo, Norberto [ORNL; Storey, John Morse [ORNL; Lewis Sr, Samuel Arthur [ORNL

2008-01-01T23:59:59.000Z

27

Heavy-duty diesel vehicle Nox? aftertreatment in 2010 : the infrastructure and compliance challenges of urea-SCR  

E-Print Network (OSTI)

Increasingly stringent heavy-duty vehicle emission regulations are prompting the use of PM and NOx aftertreatment systems in the US, the EU and Japan. In the US, the EPA Highway Diesel Rule, which will be fully implemented ...

Bodek, Kristian M

2008-01-01T23:59:59.000Z

28

Remote Sensing of In-Use Heavy-Duty Diesel Trucks  

E-Print Network (OSTI)

Remote Sensing of In-Use Heavy-Duty Diesel Trucks D A N I E L A . B U R G A R D , G A R Y A . B I this study suggest that on-road remote sensing can detect illegal, high sulfur fuel use from individual heavy,HDDvehiclesemissionshavereceivedgrowing attentioninavarietyofstudiessuchaschassisdynamometers (5, 6), in a tunnel (7), and remote sensing (8-10) as well as one critical review (4

Denver, University of

29

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

82 Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISL G 8.9L Additional Description: A heavy-duty truck designed for regional-haul applications....

30

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

T660 Tractor Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISX12 G Additional Description: A Class 8 heavy-duty truck designed for on-highway...

31

Vehicle Technologies Office: 2003 Diesel Engine Emissions Reduction...  

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

3: Fuels and Lubrication, Part 2 Emissions from Heavy-Duty Diesel Engine with Exhaust Gas Recirculation (EGR) using Oil Sands Derived Fuels Stuart Neill National Research...

32

On-Road Development of the C-Gas Plus Engine in Heavy-Duty Vehicles  

Science Conference Proceedings (OSTI)

Fact sheet details on-road development of C-Gas Plus natural gas engine in Viking Freight heavy-duty trucks, including emissions, fuel costs, and petroleum displacement.

Not Available

2003-06-01T23:59:59.000Z

33

Regulated Emissions from Biodiesel Tested in Heavy-Duty Engines Meeting 2004 Emission Standards  

DOE Green Energy (OSTI)

Biodiesel produced from soybean oil, canola oil, yellow grease, and beef tallow was tested in two heavy-duty engines. The biodiesels were tested neat and as 20% by volume blends with a 15 ppm sulfur petroleum-derived diesel fuel. The test engines were the following: 2002 Cummins ISB and 2003 DDC Series 60. Both engines met the 2004 U.S. emission standard of 2.5 g/bhp-h NO{sub x}+HC (3.35 g/kW-h) and utilized exhaust gas recirculation (EGR). All emission tests employed the heavy-duty transient procedure as specified in the U.S. Code of Federal Regulations. Reduction in PM emissions and increase in NO{sub x} emissions were observed for all biodiesels in all engines, confirming observations made in older engines. On average PM was reduced by 25% and NO{sub x} increased by 3% for the two engines tested for a variety of B20 blends. These changes are slightly larger in magnitude, but in the same range as observed in older engines. The cetane improver 2-ethyl hexyl nitrate was shown to have no measurable effect on NO{sub x} emissions from B20 in these engines, in contrast to observations reported for older engines. The effect of intake air humidity on NO{sub x} emissions from the Cummins ISB was quantified. The CFR NO{sub x}/humidity correction factor was shown to be valid for an engine equipped with EGR, operating at 1700 m above sea level, and operating on conventional or biodiesel.

McCormick, R. L.; Tennant, C. J.; Hayes, R. R.; Black, S.; Ireland, J.; McDaniel, T.; Williams, A.; Frailey, M.; Sharp, C. A.

2005-11-01T23:59:59.000Z

34

Development of a direct-injected natural gas engine system for heavy-duty vehicles: Final report phase 1  

DOE Green Energy (OSTI)

The transportation sector accounts for approximately 65% of US petroleum consumption. Consumption for light-duty vehicles has stabilized in the last 10--15 years; however, consumption in the heavy-duty sector has continued to increase. For various reasons, the US must reduce its dependence on petroleum. One significant way is to substitute alternative fuels (natural gas, propane, alcohols, and others) in place of petroleum fuels in heavy-duty applications. Most alternative fuels have the additional benefit of reduced exhaust emissions relative to petroleum fuels, thus providing a cleaner environment. The best long-term technology for heavy-duty alternative fuel engines is the 4-stroke cycle, direct injected (DI) engine using a single fuel. This DI, single fuel approach maximizes the substitution of alternative fuel for diesel and retains the thermal efficiency and power density of the diesel engine. This report summarizes the results of the first year (Phase 1) of this contract. Phase 1 focused on developing a 4-stroke cycle, DI single fuel, alternative fuel technology that will duplicate or exceed diesel power density and thermal efficiency, while having exhaust emissions equal to or less than the diesel. Although the work is currently on a 3500 Series DING engine, the work is viewed as a basic technology development that can be applied to any engine. Phase 1 concentrated on DING engine component durability, exhaust emissions, and fuel handling system durability. Task 1 focused on identifying primary areas (e.g., ignition assist and gas injector systems) for future durability testing. In Task 2, eight mode-cycle-averaged NO{sub x} emissions were reduced from 11.8 gm/hp-hr (baseline conditions) to 2.5 gm/hp-hr (modified conditions) on a 3501 DING engine. In Task 3, a state-of-the-art fuel handling system was identified.

NONE

2000-03-02T23:59:59.000Z

35

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Odyssey XLT Application: Bus - Shuttle Fuel Types: CNG, Hybrid - Diesel Electric Maximum Seating: 50 Hybrid System(s): Eaton - Diesel Electric Hybrid Additional Description:...

36

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

86HE Application: Tractor Fuel Type: Hybrid - Diesel Electric Power Source(s): Paccar - MX-13 Hybrid System(s): Eaton - Diesel Electric Hybrid...

37

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

T370 hybrid truck Application: Vocational truck Fuel Type: Hybrid - Diesel Electric Maximum Seating: 2 Hybrid System(s): Eaton - Diesel Electric Hybrid Additional Description:...

38

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Gillig Corp. - Diesel-Electric Hybrid Bus and CNG Bus Application: Bus - Transit Fuel Types: CNG, Hybrid - Diesel Electric Maximum Seating: 40 Power Source(s): Cummins Westport -...

39

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Freightliner - M2 106 Hybrid Applications: Tractor, Vocational truck Fuel Type: Hybrid - Diesel Electric...

40

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Compatible Vehicles: Vision Motor Corp. - Tyrano Eaton - Hybrid Drive System Fuel Type: Hybrid - Diesel Electric...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Kenworth - T370 diesel electric tractor Application: Tractor Fuel Type: Hybrid - Diesel Electric Maximum Seating: 3 Power Source(s): Paccar - PX-6 6.7L Hybrid System(s): Eaton -...

42

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

T270 hybrid Applications: Tractor, Vocational truck Fuel Type: Hybrid - Diesel Electric Power Source(s): Paccar - PX-6 6.7L Hybrid System(s): Eaton - Diesel Electric Hybrid...

43

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Kenworth - T270 hybrid Kenworth - T370 diesel electric tractor Peterbilt Motors - 337338 Peterbilt Motors - 330 Hybrid Paccar - PX-6 6.7L Fuel Type: Hybrid - Diesel Hydraulic...

44

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Compatible Vehicles: Hino - 195h Hino - Hino 5L Fuel Type: Hybrid - Diesel Hydraulic Displacement: 5.0 liters...

45

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

New Flyer - Xcelsior Applications: Bus - Transit, Trolley Fuel Types: CNG, LNG, Hydrogen, Electricity, Hybrid - Diesel Electric Maximum Seating: varies Power Source(s): Cummins...

46

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Thomas Built Buses - Saf-T-Liner C2e Hybrid Application: Bus - School Fuel Type: Hybrid - Diesel Electric Maximum Seating: 81...

47

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Peterbilt Motors - 320 HLA Application: Refuse hauler Fuel Type: Hybrid - Diesel Hydraulic Power Source(s): Cummins - ISL 8.9L Hybrid System(s):...

48

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Motor Coach Industries - D4500 CT Hybrid Commuter Coach Application: Bus - Transit Fuel Types: CNG, Hybrid - Diesel Electric Maximum Seating: 57 Power Source(s): Cummins Westport -...

49

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Hino - 195h Application: Vocational truck Fuel Type: Hybrid - Diesel Electric Power Source(s): Hino - Hino 5L Hybrid System(s): Hino - Hino Hybrid Drive...

50

The transportable heavy-duty engine emissions testing laboratory  

DOE Green Energy (OSTI)

West Virginia University has designed and constructed a Transportable Emissions Testing Laboratory for measuring emissions from heavy duty vehicles, such as buses and trucks operating on conventional and alternative fuels. The laboratory facility can be transported to a test site located at, or nearby, the home base of the vehicles to be tested. The laboratory has the capability of measuring vehicle emissions as the vehicle is operated under either transient or steady state loads and speeds. The exhaust emissions from the vehicle is sampled and the levels of the constituents of the emission are measured. The laboratory consists of two major units; a power absorber unit and an emissions measurement unit. A power absorber unit allows for the connection of a dynamic load to the drive train of the vehicle so that the vehicle can be driven'' through a test cycle while actually mounted on a stationary test bed. The emissions unit contains instrumentation and equipment which allows for the dilution of the vehicle's exhaust with air. The diluteed exhaust is sampled and analyzed to measure the level of concentration of those constituents which have been identified to have impact on the clean environment. Sampling probes withdraw diluted exhaust which is supplied to a number of different exhaust gas analysis instruments. The exhaust gas analysis instruments have the capability to measure the levels of the following exhaust gas constituents: carbon monoxide (CO), carbon dioxide (CO{sub 2}), oxides of nitrogen (NO{sub x}), unburned hydrocarbons (HC), formaldehyde (HCHO), methane and particulate matter. Additional instruments or sampling devices can be installed whenever measurements of additional constituents are desired. A computer based, data acquisition system is used to continuously monitor a wide range of parameters important to the operation of the test and to record the test results.

Not Available

1991-05-01T23:59:59.000Z

51

The transportable heavy-duty engine emissions testing laboratory  

SciTech Connect

West Virginia University has designed and constructed a Transportable Emissions Testing Laboratory for measuring emissions from heavy duty vehicles, such as buses and trucks operating on conventional and alternative fuels. The laboratory facility can be transported to a test site located at, or nearby, the home base of the vehicles to be tested. The laboratory has the capability of measuring vehicle emissions as the vehicle is operated under either transient or steady state loads and speeds. The exhaust emissions from the vehicle is sampled and the levels of the constituents of the emission are measured. The laboratory consists of two major units; a power absorber unit and an emissions measurement unit. A power absorber unit allows for the connection of a dynamic load to the drive train of the vehicle so that the vehicle can be driven'' through a test cycle while actually mounted on a stationary test bed. The emissions unit contains instrumentation and equipment which allows for the dilution of the vehicle's exhaust with air. The diluteed exhaust is sampled and analyzed to measure the level of concentration of those constituents which have been identified to have impact on the clean environment. Sampling probes withdraw diluted exhaust which is supplied to a number of different exhaust gas analysis instruments. The exhaust gas analysis instruments have the capability to measure the levels of the following exhaust gas constituents: carbon monoxide (CO), carbon dioxide (CO{sub 2}), oxides of nitrogen (NO{sub x}), unburned hydrocarbons (HC), formaldehyde (HCHO), methane and particulate matter. Additional instruments or sampling devices can be installed whenever measurements of additional constituents are desired. A computer based, data acquisition system is used to continuously monitor a wide range of parameters important to the operation of the test and to record the test results.

1991-05-01T23:59:59.000Z

52

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Nova Bus - LFS HEV Application: Bus - Transit Fuel Type: Hybrid - Diesel Electric Maximum Seating: 40 Power Source(s): Cummins - ISB 6.7L Hybrid System(s): Allison Transmission -...

53

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Nova Bus - LFS Artic HEV Application: Bus - Transit Fuel Type: Hybrid - Diesel Electric Maximum Seating: 62 Power Source(s): Cummins - ISB 6.7L Hybrid System(s): Allison...

54

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Axess Application: Bus - Transit Fuel Types: CNG, LNG, Hydrogen, Hybrid - Diesel Electric Maximum Seating: 41 Power Source(s): Cummins Westport - ISL G 8.9L Ballard Power Systems -...

55

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

North American Bus Industries - 42BRT Application: Bus - Transit Fuel Types: CNG, LNG, Hybrid - Diesel Electric Maximum Seating: 43 Power Source(s): Cummins Westport - ISL G 8.9L...

56

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

60BRT Application: Bus - Transit Fuel Types: CNG, LNG, Hybrid - Diesel Electric Maximum Seating: 43 Power Source(s): Cummins Westport - ISL G 8.9L Cummins - ISL 8.9L Hybrid...

57

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

E-Z Rider II BRT Application: Bus - Transit Fuel Types: CNG, LNG, Hybrid - Diesel Electric Maximum Seating: 33 Power Source(s): Cummins Westport - ISL G 8.9L Cummins - ISB 6.7L...

58

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

IC Bus - HC Hybrid Series Application: Bus - Shuttle Fuel Type: Hybrid - Diesel Electric Maximum Seating: 45 Power Source(s): Navistar - MaxxForce DT Hybrid System(s): Eaton -...

59

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

North American Bus Industries - CompoBus Application: Bus - Transit Fuel Types: CNG, Hybrid - Diesel Electric Maximum Seating: 47 Power Source(s): Cummins Westport - ISL G 8.9L...

60

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

DesignLine Corp. - EcoSaver IV Application: Bus - Transit Fuel Types: Hybrid - CNG Electric, Hybrid - Diesel Electric Maximum Seating: 40 Power Source(s): Capstone Turbine Corp. -...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

60BRT North American Bus Industries - 31LFW 35LFW 40LFW ElDorado National - E-Z Rider II BRT ElDorado National - Axess Gillig Corp. - Diesel-Electric Hybrid Bus and CNG Bus...

62

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

31LFW 35LFW 40LFW Application: Bus - Transit Fuel Types: CNG, Hybrid - Diesel Electric Maximum Seating: 40 Power Source(s): Cummins Westport - ISL G 8.9L Cummins - ISL 8.9L...

63

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

LFX Application: Bus - Transit Fuel Type: Hybrid - Diesel Electric Maximum Seating: Varies Power Source(s): Cummins - ISL 8.9L Cummins - ISB 6.7L Hybrid System(s): Allison...

64

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Autocar - E3 Hybrid Application: Refuse hauler Fuel Type: Hybrid - Diesel Electric Power Source(s): Cummins - ISL 8.9L Hybrid System(s): Parker Hannifin Corp. - RunWise...

65

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Peterbilt Motors - 386HE Kenworth - T370 hybrid truck Kenworth - T270 hybrid IC Bus - HC Hybrid Series Turtle Top - Odyssey XLT Kenworth - T370 diesel electric tractor Thomas Built...

66

A Vector Approach to Regression Analysis and Its Implications to Heavy-Duty Diesel Emissions  

DOE Green Energy (OSTI)

An alternative approach is presented for the regression of response data on predictor variables that are not logically or physically separable. The methodology is demonstrated by its application to a data set of heavy-duty diesel emissions. Because of the covariance of fuel properties, it is found advantageous to redefine the predictor variables as vectors, in which the original fuel properties are components, rather than as scalars each involving only a single fuel property. The fuel property vectors are defined in such a way that they are mathematically independent and statistically uncorrelated. Because the available data set does not allow definitive separation of vehicle and fuel effects, and because test fuels used in several of the studies may be unrealistically contrived to break the association of fuel variables, the data set is not considered adequate for development of a full-fledged emission model. Nevertheless, the data clearly show that only a few basic patterns of fuel-property variation affect emissions and that the number of these patterns is considerably less than the number of variables initially thought to be involved. These basic patterns, referred to as ''eigenfuels,'' may reflect blending practice in accordance with their relative weighting in specific circumstances. The methodology is believed to be widely applicable in a variety of contexts. It promises an end to the threat of collinearity and the frustration of attempting, often unrealistically, to separate variables that are inseparable.

McAdams, H.T.

2001-02-14T23:59:59.000Z

67

Engines - Emissions Control - cerium-oxide catalyst, diesel,...  

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

Emissions Control Heavy duty diesel vehicles product particulate matter emissions. The U.S. Environmental Protection Agency regulations require that heavy-duty diesel vehicles have...

68

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Champion Bus Inc. - CTS - Front Engine Application: Bus - Shuttle Fuel Type: CNG Maximum Seating: 32 Power Source(s): Cummins Westport - ISL G 8.9L...

69

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Blue Bird Corp. - All American Rear Engine Application: Bus - School Fuel Type: CNG Maximum Seating: 84 Power Source(s): Cummins Westport - ISL G 8.9L...

70

THE EFFECTS OF BIODIESEL BLENDS AND ARCO EC-DIESEL ON EMISSIONS from LIGHT HEAVY-DUTY DIESEL VEHICLES  

DOE Green Energy (OSTI)

Chassis dynamometer tests were performed on 7 light heavy-duty diesel trucks comparing the emissions of a California diesel fuel with emissions from 4 other fuels: ARCO EC-diesel (EC-D) and three 20% biodiesel blends (1 yellow grease and 2 soy-based). The EC-D and the yellow grease biodiesel blend both showed significant reductions in THC and CO emissions over the test vehicle fleet. EC-D also showed reductions in PM emission rates. NOx emissions were comparable for the different fuel types over the range of vehicles tested. The soy-based biodiesel blends did not show significant or consistent emissions differences over all test vehicles. Total carbon accounted for more than 70% of the PM mass for 4 of the 5 sampled vehicles. Elemental and organic carbon ratios varied significantly from vehicle-to-vehicle but showed very little fuel dependence. Inorganic species represented a smaller portion of the composite total, ranging from 0.2 to 3.3% of the total PM. Total PAH emissions ranged from approximately 1.8 mg/mi to 67.8 mg/mi over the different vehicle/fuel combinations representing between 1.6 and 3.8% of the total PM mass.

Durbin, Thomas

2001-08-05T23:59:59.000Z

71

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Blue Bird Corp. - Vision Application: Bus - School Fuel Type: Propane Maximum Seating: 77 Power Source(s): Ford Motor Co. - 6.8L V10 Engine - Roush CleanTech liquid propane fuel...

72

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Blue Bird Corp. - Micro Bird G5 Application: Bus - School Fuel Type: Propane Maximum Seating: 30 Power Source(s): Ford Motor Co. - 6.8L V10 Engine - Roush CleanTech liquid propane...

73

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Blue Bird Corp. - Vision Blue Bird Corp. - Micro Bird G5 Ford Motor Co. - 6.8L V10 Engine - Roush CleanTech liquid propane fuel system Fuel Type: Propane Displacement: 6.8...

74

The ethanol heavy-duty truck fleet demonstration project  

DOE Green Energy (OSTI)

This project was designed to test and demonstrate the use of a high- percentage ethanol-blended fuel in a fleet of heavy-duty, over-the- road trucks, paying particular attention to emissions, performance, and repair and maintenance costs. This project also represents the first public demonstration of the use of ethanol fuels as a viable alternative to conventional diesel fuel in heavy-duty engines.

NONE

1997-06-01T23:59:59.000Z

75

CONTROL OF DIESEL ENGINE UREA SELECTIVE CATALYTIC REDUCTION SYSTEMS.  

E-Print Network (OSTI)

??A systematic nonlinear control methodology for urea-SCR systems applicable for light-to-heavy-duty Diesel engine platforms in a variety of on-road, off-road, and marine applications is developed… (more)

Hsieh, Ming-Feng

2010-01-01T23:59:59.000Z

76

Just the Basics: Diesel Engine  

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

Today's direct-injection diesel Today's direct-injection diesel engines are more rugged, powerful, durable, and reliable than gasoline engines, and use fuel much more efficiently, as well. Diesel Engines Yesterday, Today, and Tomorrow Diesels are workhorse engines. That's why you find them powering heavy- duty trucks, buses, tractors, and trains, not to mention large ships, bulldozers, cranes, and other construction equipment. In the past, diesels fit the stereotype of muscle-bound behe- moths. They were dirty and sluggish, smelly and loud. That image doesn't apply to today's diesel engines, however, and tomorrow's diesels will show even greater improvements. They will be even more fuel efficient, more flexible in the fuels they can use, and also much cleaner in emissions. How Diesel Engines Work

77

Development of a Heavy-Duty Diesel Modal Emissions and Fuel Consumption Model  

E-Print Network (OSTI)

1997), “Emission from CNG and diesel Refuse Haulers Using1997), “Emission from CNG and diesel Refuse Haulers Using

Barth, Matthew; Younglove, Theodore; Scora, George

2005-01-01T23:59:59.000Z

78

Getting performance without sacrificing economy or emissions control in a heavy-duty LPG engine  

SciTech Connect

A commercial 637 CID liquefied petroleum gas (LPG) engine was evaluated as a candidate powerplant for new bus purchases and/or as a replacement for obsolete LPG engines currently being used in metropolitan Chicago bus service. Limited route service experience with LPG conversion of a gasoline engine indicated both its potential and the need for its optimization in order to take advantage of the unique characteristics of LPG. The engine-dynamometer study, with emphasis on fuel system-ignition relationships, led to substantial improvement in fuel economy without depreciation of engine power. The 637 CID LPG engine fuel economy was increased from an average of 1.77 mpg for 1965 to 1971 to 2.60 mpg for the Dec. 1971 to April 1972 period in Chicago field tests. Cylinder head redesign permitted lean mixture operation that reduced exhaust emissions to levels calculated to conform to the 1973 Federal standards and the 1973-1974 California Air Resources Board requirements for heavy-duty engines. The exhaust emissions data obtained with the optimized 7.5:1 CR engine based on the California 13-mode cycle were 8.3 g/bhp/hr carbon monoxide and 9.9 g/bhp/hr hydrocarbons plus nitrogen dioxide.

Mengelkamp, R.A.; Linnard, R.E.

1973-01-01T23:59:59.000Z

79

Materials - Catalysts for Diesel Engines  

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

Argonne's deNOx Catalyst Begins Extensive Diesel Engine Exhaust Testing Argonne's deNOx Catalyst Begins Extensive Diesel Engine Exhaust Testing denox monolith Argonne's deNOx catalyst can be prepared as a powder or a monolith. chris marshall Principal investigator Chris Marshall shows the monolith form of the Argonne deNOx catalyst with a sensor inserted for testing. doug longman Mechanical engineer Doug Longman inserts the instrumented deNOx catalyst monolith into the aftertreatment chamber of Argonne's heavy-duty Caterpillar diesel test engine. Background Diesel engines, while efficient, produce many undesirable combustion byproducts in their exhaust. While we tend to think of the sooty exhaust products we see as the bad stuff, it is the less-visible exhaust products such as nitrogen oxides (NOx) that create bigger problems.

80

Investigation of Solid Particle Number Measurement of Engine Emissions  

E-Print Network (OSTI)

using the same engine and aftertreatment system [ 27] andaftertreatment for pm and nox reduction on heavy-duty diesel engineaftertreatment systems. At the Euro IV heavy-duty engine

Zheng, Zhongqing

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Diesel-fueled solid oxide fuel cell auxiliary power units for heavy-duty vehicles  

DOE Green Energy (OSTI)

This paper explores the potential of solid oxide fuel cells (SOFCS) as 3--10 kW auxiliary power units for trucks and military vehicles operating on diesel fuel. It discusses the requirements and specifications for such units, and the advantages, challenges, and development issues for SOFCS used in this application. Based on system design and analysis, such systems should achieve efficiencies approaching 40% (lower heating value), with a relatively simple system configuration. The major components of such a system are the fuel cell stack, a catalytic autothermal reformer, and a spent gas burner/air preheater. Building an SOFC-based auxiliary power unit is not straightforward, however, and the tasks needed to develop a 3--10 kW brassboard demonstration unit are outlined.

Krause, T.; Kumar, R.; Krumpelt, M.

2000-05-15T23:59:59.000Z

82

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Compatible Vehicles: Compatible Vehicles: Cargotec - Ottawa 4x2 Elgin Sweeper Company - Broom Bear/Crosswind/Eagle/Pelican North American Bus Industries - 60BRT North American Bus Industries - 31LFW / 35LFW / 40LFW ElDorado National - E-Z Rider II BRT ElDorado National - Axess ElDorado National - XHF Champion Bus Inc. - CTS - Front Engine Motor Coach Industries - D4500 CT Hybrid Commuter Coach Gillig Corp. - Diesel-Electric Hybrid Bus and CNG Bus Freightliner - Business Class M2 112 Blue Bird Corp. - All American Rear Engine Capacity Trucks - TJ9000 Heil Environmental - RapidRail McNeilus - Rear Load (Std, HD, XC, Tag, MS, Metro-Pak) McNeilus - CNG Cement Mixer North American Bus Industries - 42BRT Heil Environmental - DuraPack Python Heil Environmental - Rear Loader Thomas Built Buses - Saf-T-Liner HDX CNG

83

Cermet Filters To Reduce Diesel Engine Emissions  

DOE Green Energy (OSTI)

Pollution from diesel engines is a significant part of our nation's air-quality problem. Even under the more stringent standards for heavy-duty engines set to take effect in 2004, these engines will continue to emit large amounts of nitrogen oxides and particulate matter, both of which affect public health. To address this problem, the Idaho National Engineering and Environmental Laboratory (INEEL) invented a self-cleaning, high temperature, cermet filter that reduces heavy-duty diesel engine emissions. The main advantage of the INEEL cermet filter, compared to current technology, is its ability to destroy carbon particles and NOx in diesel engine exhaust. As a result, this technology is expected to improve our nation's environmental quality by meeting the need for heavy-duty diesel engine emissions control. This paper describes the cermet filter technology and the initial research and development effort.Diesel engines currently emit soot and NOx that pollute our air. It is expected that the U.S. Environmental Protection Agency (EPA) will begin tightening the regulatory requirements to control these emissions. The INEEL's self-cleaning, high temperature cermet filter provides a technology to clean heavy-duty diesel engine emissions. Under high engine exhaust temperatures, the cermet filter simultaneously removes carbon particles and NOx from the exhaust gas. The cermet filter is made from inexpensive starting materials, via net shape bulk forming and a single-step combustion synthesis process, and can be brazed to existing structures. It is self-cleaning, lightweight, mechanically strong, thermal shock resistant, and has a high melting temperature, high heat capacity, and controllable thermal expansion coefficient. The filter's porosity is controlled to provide high removal efficiency for carbon particulate. It can be made catalytic to oxidize CO, H2, and hydrocarbons, and reduce NOx. When activated by engine exhaust, the filter produces NH3 and light hydrocarbon gases that can effectively destroy the NOx in the exhaust. The following sections describe cermet filter technology and properties of the INEEL filter.

Kong, Peter

2001-08-05T23:59:59.000Z

84

Emission and Performance Comparison of the Natural Gas C-Gas Plus Engine in Heavy-Duty Trucks: Final Report  

DOE Green Energy (OSTI)

Subcontractor report details results of on-road development and emissions characteristics of C-Gas Plus natural gas engine in Viking Freight heavy duty trucks. The objective of this project was to develop, on road and in service, a natural gas truck/bus engine (the C-Gas Plus) with higher horsepower, lower cost, and better performance and diagnostics than the previous C8.3G natural gas engine. The engine was to have an advanced engine management control system to enable implementation of proven technologies that improve engine performance and power density (hp/L). The C-Gas Plus engine was designed to meet the following objectives: (1) Higher engine ratings (280 hp and 850 ft-lb torque for the C-Gas Plus) than the C8.3G natural gas engine; (2) Lower capital cost than the C8.3G engine; and (3) Low emission standards: California Air Resources Board (CARB) low-NO{sub x} (oxides of nitrogen) (2.0 g/bhp-h) and U.S. Environmental Protection Agency (EPA) Clean Fuel Fleet Program ultra-low emission vehicle (ULEV) emission certifications.

Lyford-Pike, E. J.

2003-04-01T23:59:59.000Z

85

The transportable heavy-duty engine emissions testing laboratory. Annual progress report, April 1990--April 1991  

SciTech Connect

West Virginia University has designed and constructed a Transportable Emissions Testing Laboratory for measuring emissions from heavy duty vehicles, such as buses and trucks operating on conventional and alternative fuels. The laboratory facility can be transported to a test site located at, or nearby, the home base of the vehicles to be tested. The laboratory has the capability of measuring vehicle emissions as the vehicle is operated under either transient or steady state loads and speeds. The exhaust emissions from the vehicle is sampled and the levels of the constituents of the emission are measured. The laboratory consists of two major units; a power absorber unit and an emissions measurement unit. A power absorber unit allows for the connection of a dynamic load to the drive train of the vehicle so that the vehicle can be ``driven`` through a test cycle while actually mounted on a stationary test bed. The emissions unit contains instrumentation and equipment which allows for the dilution of the vehicle`s exhaust with air. The diluteed exhaust is sampled and analyzed to measure the level of concentration of those constituents which have been identified to have impact on the clean environment. Sampling probes withdraw diluted exhaust which is supplied to a number of different exhaust gas analysis instruments. The exhaust gas analysis instruments have the capability to measure the levels of the following exhaust gas constituents: carbon monoxide (CO), carbon dioxide (CO{sub 2}), oxides of nitrogen (NO{sub x}), unburned hydrocarbons (HC), formaldehyde (HCHO), methane and particulate matter. Additional instruments or sampling devices can be installed whenever measurements of additional constituents are desired. A computer based, data acquisition system is used to continuously monitor a wide range of parameters important to the operation of the test and to record the test results.

1991-05-01T23:59:59.000Z

86

Assessment of heavy-duty gasoline and diesel vehicles in California: population and use patterns. Final report, June 1983-March 1985  

Science Conference Proceedings (OSTI)

The report presents an inventory of Vehicle Miles Travelled (VMT) in California by heavy-duty vehicles (HDV) in each of the 58 counties and 14 air basins. To compile the inventory, PES used data generated by two California Department of Transportation (CAL TRANS) annual studies. These data were supplemented by several types of auxiliary data compiled by a literature search, a special truck traffic survey on 21 different routes selected from city and county roads, and an owner/operator telephone questionnaire on vehicle usage of 622 randomly selected HDV's. Out-of-state truck activities in California were estimated by analyzing data from the 1976 Interstate Transportation and Traffic Engineering Survey and the 1971 Institute of Transportation and Traffic Engineering Survey.

Horie, Y.; Rapoport, R.; Pantalone, J.

1985-07-01T23:59:59.000Z

87

HEAVY-DUTY VEHICLE IN USE EMISSION PERFORMANCE  

DOE Green Energy (OSTI)

Engines for heavy-duty vehicles are emission certified by running engines according to specified load pattern or duty cycle. In the US, the US Heavy-Duty Transient cycle has been in use already for a number of years, and Europe is, according to the requirements of the Directive 1999/96/EC gradually switching to transient-type testing. Evaluating the in-use emission performance of heavy-duty vehicles presents a problem. Taking engines out of vehicles for engine dynamometer testing is difficult and costly. In addition, engine dynamometer testing does not take into account the properties of the vehicle itself (i.e. mass, transmission etc.). It is also debatable, how well the standardized duty cycles reflect real-life -driving patterns. VTT Processes has recently commissioned a new emission laboratory for heavy-duty vehicles. The facility comprises both engine test stand and a fully transient heavy-duty chassis dynamometer. The roller diameter of the dynamometer is 2.5 meters. Regulated emissions are measured using a full-flow CVS system. The HD vehicle chassis dynamometer measurements (emissions, fuel consumption) has been granted accreditation by the Centre of Metrology and Accreditation (MIKES, Finland). A national program to generate emission data on buses has been set up for the years 2002-2004. The target is to generate emission factors for some 50 different buses representing different degree of sophistication (Euro 1 to Euro5/EEV, with and without exhaust gas aftertreatment), different fuel technologies (diesel, natural gas) and different ages (the effect of aging). The work is funded by the Metropolitan Council of Helsinki, Helsinki City Transport, The Ministry of Transport and Communications Finland and the gas company Gasum Oy. The International Association for Natural Gas Vehicles (IANGV) has opted to buy into the project. For IANGV, VTT will deliver comprehensive emission data (including particle size distribution and chemical and biological characterization of particles) for up-to-date diesel and natural gas vehicles. The paper describes the methodology used for the measurements on buses, the test matrix and some preliminary emission data on both regulated and unregulated emissions.

Nylund, N; Ikonen, M; Laurikko, J

2003-08-24T23:59:59.000Z

88

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Allison Transmission (2) Azure Dynamics (1) BAE Systems (1) DesignLine Allison Transmission (2) Azure Dynamics (1) BAE Systems (1) DesignLine Corp. (1) Eaton (3) Hino (1) Parker Hannifin Corp. (1) Proterra (1) Smith Electric Vehicles (1) Fuel Type All Hybrid - Diesel Electric (8) Hybrid - Gasoline Electric (1) Application All Bus - School (4) Bus - Shuttle (2) Bus - Transit (6) Refuse hauler (2) Tractor (2) Trolley (2) Vocational truck (2) Go Compare Allison Transmission - Allison H 40 EP Allison Transmission - Allison H 50 EP Azure Dynamics - Balance Parallel Hybrid Drive BAE Systems - HybriDrive DesignLine Corp. - ECOSaver IV Eaton - Diesel Electric Hybrid Eaton - Hybrid Drive System Eaton - Hybrid Hydraulic Launch Assist (HLA) Hino - Hino Hybrid Drive Parker Hannifin Corp. - RunWise Proterra - ProDrive System Smith Electric Vehicles - 120 kw induction motor with Lithium-ion batteries

89

Demonstration of a Low-NOx Heavy-Duty Natural Gas Engine  

DOE Green Energy (OSTI)

Results of a Next Generation Natural Gas Vehicle engine research project: A Caterpillar C-12 natural gas engine with Clean Air Power Dual-Fuel technology and exhaust gas recirculation demonstrated low NOx and PM emissions.

Not Available

2004-02-01T23:59:59.000Z

90

Study of Fuel Property Effects Using Future Low Emissions Heavy Duty Truck Engine Hardware  

DOE Green Energy (OSTI)

Fuel properties have had substantial impact on engine emissions. Fuel impact varies with engine technology. An assessment of fuel impact on future low emission designs was needed as part of an EMAEPA-API study effort

Li, Sharon

2000-08-20T23:59:59.000Z

91

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ballard Power Systems (3) Balqon (3) Bosch Rexroth (1) Boulder Electric Ballard Power Systems (3) Balqon (3) Bosch Rexroth (1) Boulder Electric Vehicle (1) Capstone Turbine Corp. (2) Cummins (2) Cummins Westport (2) Electric Vehicles International (1) Enova Systems (1) Ford Motor Co. (5) General Motors (5) Hino (1) KEM (1) Navistar (1) Paccar (2) Smith Electric Vehicles (2) UQM (2) UTC Power (1) Valence (1) Vision Motor Corp. (2) Volvo (1) Westport Innovations (1) Fuel Type All CNG (8) Electricity (11) Ethanol (2) Hybrid - Diesel Hydraulic (5) Hydrogen (3) LNG (4) Propane (10) Application All Bus - School (6) Bus - Shuttle (9) Bus - Transit (11) Refuse hauler (2) Street sweeper (5) Tractor (13) Trolley (3) Van (9) Vocational truck (16) Go Compare Ballard Power Systems - FCvelocity-HD6 fuel cell Ballard Power Systems - Hydrogen Fuel Cell

92

Study and program plan for improved heavy duty gas turbine engine ceramic component development  

DOE Green Energy (OSTI)

A five-year program plan was generated from the study activities with the objectives of demonstrating a fuel economy of 213 mg/W . h (0.35 lb/hp-hr) brake specific fuel consumption by 1981 through use of ceramic materials, with conformance to current and projected Federal noise and emission standards, and to demonstrate a commercially viable engine. Study results show that increased turbine inlet and regenerator inlet temperatures, through the use of ceramic materials, contribute the greatest amount to achieving fuel economy goals. Further, improved component efficiencies (for the compressor, gasifier turbine, power turbine, and regenerator disks show significant additional gains in fuel economy. Fuel saved in a 500,000-mile engine life, risk levels involved in development, and engine-related life cycle costs for fleets (100 units) of trucks and buses were used as criteria to select work goals for the planned program.

Helms, H.E.

1977-05-01T23:59:59.000Z

93

Study of deposit formation inside diesel injectors nozzles  

E-Print Network (OSTI)

Diesel engines are widely used in heavy duty transportation applications such as in trucks, buses and ships because of their reliability and high torque output. A key diesel technology is the injection system which is ...

Wang, YinChun, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

94

Advanced Diesel Engine Component Development Program, final report - tasks 4-14  

DOE Green Energy (OSTI)

The Advanced Diesel Engine Component Development (ADECD) Program is a multi-year, multi-phase effort to develop and demonstrate the critical technology needed to advance the heavy-duty low heat rejection (LHR) engine concept for the long-haul, heavy-duty truck market. The ADECD Program has been partitioned into two phases. The first phase, Phase 1, was completed in 1986, resulting in definition of the Advanced Diesel Reference Engine (ADRE)III. The second phase, Phase 11/111, examines the feasibility of the ADRE concepts for application to the on-highway diesel engine. Phase 11/111 is currently underway. This project is sponsored by the U.S. Department of Energy, Office of Transportation Technologies. The work has been performed by the Detroit Diesel Corporation (DDC) under Contract DEN3-329 with the NASA Lewis Research Center, who provide project management and technical direction.

Kaushal, T.S.; Weber, K.E.

1994-11-01T23:59:59.000Z

95

Coal-fueled high-speed diesel engine development: Task 2, Market assessment and economic analysis  

DOE Green Energy (OSTI)

Based on the preliminary coal engine design developed, this task was conducted to identify the best opportunity(s) to enter the market with the future coal-fueled, high-speed diesel engine. The results of this market and economic feasibility assessment will be used to determine what specific heavy duty engine application(s) are most attractive for coal fuel, and also define basic economic targets for the engine to be competitive.

Not Available

1991-12-01T23:59:59.000Z

96

Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst: Final Report, 24 February 2004 -- 23 February 2006  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Waste Hauler with Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst Final Report February 24, 2004 - February 23, 2006 T. Reppert Mack Trucks, Inc. Allentown, Pennsylvania J. Chiu Southwest Research Institute San Antonio, Texas Subcontract Report NREL/SR-540-38222 September 2005 Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst Final Report February 24, 2004 - February 23, 2006 T. Reppert Mack Trucks, Inc. Allentown, Pennsylvania J. Chiu Southwest Research Institute San Antonio, Texas NREL Technical Monitor: R. Parish Prepared under Subcontract No. ZCI-4-32049-01 Subcontract Report NREL/SR-540-38222 September 2005 National Renewable Energy Laboratory

97

Near and long term efficiency improvements to natural gas heavy duty engines. Quarterly technical progress report, July 1, 1997--September 30, 1997  

DOE Green Energy (OSTI)

Trucking Research Institute (TRI) in cooperation with the Department of Energy Office of Heavy Vehicle Technologies (DOE), South Coast Air Quality Management District (SCAQMD), and Gas Research Institute (GRI), requests proposals designed to support the Natural Gas Engine Enhanced Efficiency Program. This effort, which contains Programs A & B, is designed to fund projects that advance both the part and full load fuel efficiency of heavy-duty (250 hp plus) natural gas engines. Approximately $1.2 million will be available in Program A to fund up to three projects. These projects may target either or both near-term, and longer-term engine efficiency goals in addition, it is possible that one of the projects funded under Program A will be selected for additional funding for up to 42 months under Program B funding amounts are to be determined.

NONE

1997-10-10T23:59:59.000Z

98

Using LNG as a Fuel in Heavy-Duty Tractors  

DOE Green Energy (OSTI)

Recognizing the lack of operational data on alternative fuel heavy-truck trucks, NREL contracted with the Trucking Research Institute (TRI) in 1994 to obtain a cooperative agreement with Liquid Carbonic. The purpose of this agreement was to (1) purchase and operate liquid natural gas- (LNG-) powered heavy-duty tractor-trailers with prototype Detroit Diesel Corporation (DDC) Series 60 natural gas (S60G) engines in over-the-road commercial service applications; and (2) collect and provide operational data to DDC to facilitate the on-road prototype development of the engine and to NREL for the Alternative Fuels Data Center. The vehicles operated from August 1994 through April of 1997 and led to a commercially available, emissions-certified S60G in 1998. This report briefly documents the engine development, the operational characteristics of LNG, and the lessons learned during the project.

Liquid Carbonic, Inc. and Trucking Research Institute

1999-08-09T23:59:59.000Z

99

Hennepin County`s experience with heavy-duty ethanol vehicles  

DOE Green Energy (OSTI)

From November 1993 to October 1996, Hennepin County, which includes Minneapolis, field-tested two heavy-duty snowplow/road maintenance trucks fueled by ethanol. The overall objective of this program was to collect data from original equipment manufacturer alternative fuel heavy-duty trucks, along with comparable data from a similarly configured diesel-powered vehicle, to establish economic, emissions, performance, and durability data for the alternative fuel technology. These ethanol trucks, along with an identical third truck equipped with a diesel engine, were operated year round to maintain the Hennepin county roads. In winter, the trucks were run in 8-hour shifts plowing and hauling snow from urban and suburban roads. For the rest of the year, the three trucks were used to repair and maintain these same roads. As a result of this project, a considerable amount of data was collected on E95 fuel use, as well as maintenance, repair, emissions, and operational characteristics. Maintenance and repair costs of the E95 trucks were considerably higher primarily due to fuel filter and fuel pump issues. From an emissions standpoint, the E95 trucks emitted less particulate matter and fewer oxides of nitrogen but more carbon monoxide and hydrocarbons. Overall, the E95 trucks operated as well as the diesel, as long as the fuel filters were changed frequently. This project was a success in that E95, a domestically produced fuel from a renewable energy source, was used in a heavy-duty truck application and performed the same rigorous tasks as the diesel counterparts. The drawbacks to E95 as a heavy-duty fuel take the form of higher operational costs, higher fuel costs, shorter range, and the lack of over-the-road infrastructure.

NONE

1998-01-01T23:59:59.000Z

100

Clean Diesel Engine Component Improvement Program Diesel Truck Thermoelectric Generator  

SciTech Connect

Hi-Z Technology, Inc. (Hi-Z) is currently developing four different auxiliary generator designs that are used to convert a portion (5 to 20%) of the waste heat from vehicle engines exhaust directly to electricity. The four designs range from 200 Watts to 10 kW. The furthest along is the 1 kW Diesel Truck Thermoelectric Generator (DTTEG) for heavy duty Class 8 Diesel trucks, which, under this program, has been subjected to 543,000 equivalent miles of bouncing and jarring on PACCARâ??s test track. Test experience on an earlier version of the DTTEG on the same track showed the need for design modifications incorporated in DTTEG Mod 2, such as a heavy duty shock mounting system and reinforcement of the electrical leads mounting system, the thermocouple mounting system and the thermoelectric module restraints. The conclusion of the 543,000 mile test also pointed the way for an upgrading to heavy duty hose or flex connections for the internal coolant connections for the TEG, and consideration of a separate lower temperature cooling loop with its own radiator. Fuel savings of up to $750 per year and a three to five year payback are believed to be possible with the 5 % efficiency modules. The economics are expected to improve considerably to approach a two year payback when the 5 kW to 10 kW generators make it to the market in a few years with a higher efficiency (20%) thermoelectric module system called Quantum Wells, which are currently under development by Hi-Z. Ultimately, as automation takes over to reduce material and labor costs in the high volume production of QW modules, a one year payback for the 5 kW to10 kW generator appears possible. This was one of the stated goals at the beginning of the project. At some future point in time, with the DTTEG becoming standard equipment on all trucks and automobiles, fuel savings from the 25% conversion of exhaust heat to useable electricity nationwide equates to a 10% reduction in the 12 to 15 million barrels per day of imported oil, that much less air pollution, and an equivalent reduction in the trade deficit, which is expected to lower the inflation rate.

N.B. Elsner; J.C. Bass; S. Ghamaty; D. Krommenhoek; A. Kushch; D. Snowden; S. Marchetti

2005-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Improving Energy Use in Heavy-Duty Vehicles  

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

advances in consumer automobiles may dominate the headlines, but heavy-duty trucks and trains also have challenges that need to be addressed. From excessive idling to engine wear,...

102

Development of a direct-injected natural gas engine system for heavy-duty vehicles: Final report phase 2  

DOE Green Energy (OSTI)

This report summarizes the results of Phase 2 of this contract. The authors completed four tasks under this phase of the subcontract. (1) They developed a computational fluid dynamics (CFD) model of a 3500 direct injected natural gas (DING) engine gas injection/combustion system and used it to identify DING ignition/combustion system improvements. The results were a 20% improvement in efficiency compared to Phase 1 testing. (2) The authors designed and procured the components for a 3126 DING engine (300 hp) and finished assembling it. During preliminary testing, the engine ran successfully at low loads for approximately 2 hours before injector tip and check failures terminated the test. The problems are solvable; however, this phase of the program was terminated. (3) They developed a Decision & Risk Analysis model to compare DING engine technology with various other engine technologies in a number of commercial applications. The model shows the most likely commercial applications for DING technology and can also be used to identify the sensitivity of variables that impact commercial viability. (4) MVE, Inc., completed a preliminary design concept study that examines the major design issues involved in making a reliable and durable 3,000 psi LNG pump. A primary concern is the life of pump seals and piston rings. Plans for the next phase of this program (Phase 3) have been put on indefinite hold. Caterpillar has decided not to fund further DING work at this time due to limited current market potential for the DING engine. However, based on results from this program, the authors believe that DI natural gas technology is viable for allowing a natural gas-fueled engine to achieve diesel power density and thermal efficiency for both the near and long terms.

Cox, G.B.; DelVecchio, K.A.; Hays, W.J.; Hiltner, J.D.; Nagaraj, R.; Emmer, C.

2000-03-02T23:59:59.000Z

103

Reducing Diesel Engine Emissions  

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

Reducing Reducing Diesel Engine Emissions 2 0 1 0 Green TransporTaTion TechnoloGies Compared to traditional gasoline engines, diesel engines require less maintenance, generate energy more efficiently, and produce less carbon dioxide emissions. But when uncontrolled, diesel engines churn out harmful emissions like particu- late matter (PM) and nitrogen oxides (NO x ). Researchers at Argonne National Laboratory are currently working to develop

104

Feature - Fuel Economy for Medium- and Heavy-Duty Vehicles  

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

New Report Looks at Fuel Economy for Medium- and Heavy-Duty Vehicles New Report Looks at Fuel Economy for Medium- and Heavy-Duty Vehicles heavy duty trucks Argonne researcher Aymeric Rousseau was part of a National Academy of Science (NAS) committee established to make recommendations on improving and regulating fuel consumption for medium- and heavy-duty vehicles. On March 31, the committee issued a report that evaluates various technologies and methods that could improve the fuel economy of these vehicles. As a system analysis engineer at Argonne's Center for Transportation Research, Rousseau contributed his expertise on vehicle modeling and simulation to the committee, which was comprised of 19 members from industry, research organizations and academia. Rousseau, who leads the development of Argonne's PSAT and Autonomie software tools, helped the committee determine how modeling and simulation tools can be used to:

105

FUEL CONSUMPTION AND COST SAVINGS OF CLASS 8 HEAVY-DUTY TRUCKS POWERED BY NATURAL GAS  

Science Conference Proceedings (OSTI)

We compare the fuel consumption and greenhouse gas emissions of natural gas and diesel heavy-duty (HD) class 8 trucks under consistent simulated drive cycle conditions. Our study included both conventional and hybrid HD trucks operating with either natural gas or diesel engines, and we compare the resulting simulated fuel efficiencies, fuel costs, and payback periods. While trucks powered by natural gas engines have lower fuel economy, their CO2 emissions and costs are lower than comparable diesel trucks. Both diesel and natural gas powered hybrid trucks have significantly improved fuel economy, reasonable cost savings and payback time, and lower CO2 emissions under city driving conditions. However, under freeway-dominant driving conditions, the overall benefits of hybridization are considerably less. Based on payback period alone, non-hybrid natural gas trucks appear to be the most economic option for both urban and freeway driving environments.

Gao, Zhiming [ORNL; LaClair, Tim J [ORNL; Daw, C Stuart [ORNL; Smith, David E [ORNL

2013-01-01T23:59:59.000Z

106

Diesel Engine Analysis Guide  

Science Conference Proceedings (OSTI)

This guide provides a thorough background on diesel engine analysis including combustion, vibration, and ultrasonic analysis theory. Interpretation of results is also provided. This guide is intended to enable nuclear utility personnel to make informed decisions regarding the nature and use of diesel engine analysis, including how to set up an effective program, how to establish analysis guidelines, how to make use of the resulting data to plan maintenance, determine the causes of off-design operating co...

1997-10-09T23:59:59.000Z

107

Heavy-Duty Stoichiometric Compression Ignition Engine with Improved Fuel Economy over Alternative Technologies for Meeting 2010 On-Highway Emission  

Science Conference Proceedings (OSTI)

The objectives of the reported work were: to apply the stoichiometric compression ignition (SCI) concept to a 9.0 liter diesel engine; to obtain engine-out NO{sub x} and PM exhaust emissions so that the engine can meet 2010 on-highway emission standards by applying a three-way catalyst for NO{sub x} control and a particulate filter for PM control; and to simulate an optimize the engine and air system to approach 50% thermal efficiency using variable valve actuation and electric turbo compounding. The work demonstrated that an advanced diesel engine can be operated at stoichiometric conditions with reasonable particulate and NOx emissions at full power and peak torque conditions; calculated that the SCI engine will operate at 42% brake thermal efficiency without advanced hardware, turbocompounding, or waste heat recovery; and determined that EGR is not necessary for this advanced concept engine, and this greatly simplifies the concept.

Kirby J. Baumgard; Richard E. Winsor

2009-12-31T23:59:59.000Z

108

Demonstration of Air-Power-Assist Engine Technology for Clean Combustion and Direct Energy Recovery in Heavy Duty Application  

SciTech Connect

The first phase of the project consists of four months of applied research, starting from September 1, 2005 and was completed by December 31, 2005. During this time, the project team heavily relied on highly detailed numerical modeling techniques to evaluate the feasibility of the APA technology. Specifically, (i) A GT-Power{sup TM}engine simulation model was constructed to predict engine efficiency at various operating conditions. Efficiency was defined based on the second-law thermodynamic availability. (ii) The engine efficiency map generated by the engine simulation was then fed into a simplified vehicle model, which was constructed in the Matlab/Simulink environment, to predict fuel consumption of a refuse truck on a simple collection cycle. (iii) Design and analysis work supporting the concept of retrofitting an existing Sturman Industries Hydraulic Valve Actuation (HVA) system with the modifications that are required to run the HVA system with Air Power Assist functionality. A Matlab/Simulink model was used to calculate the dynamic response of the HVA system. Computer aided design (CAD) was done in Solidworks for mechanical design and hydraulic layout. At the end of Phase I, 11% fuel economy improvement was predicted. During Phase II, the engine simulation group completed the engine mapping work. The air handling group made substantial progress in identifying suppliers and conducting 3D modelling design. Sturman Industries completed design modification of the HVA system, which was reviewed and accepted by Volvo Powertrain. In Phase II, the possibility of 15% fuel economy improvement was shown with new EGR cooler design by reducing EGR cooler outlet temperature with APA engine technology from Air Handling Group. In addition, Vehicle Simulation with APA technology estimated 4 -21% fuel economy improvement over a wide range of driving cycles. During Phase III, the engine experimental setup was initiated at VPTNA, Hagerstown, MD. Air Handling system and HVA system were delivered to VPTNA and then assembly of APA engine was completed by June 2007. Functional testing of APA engine was performed and AC and AM modes testing were completed by October 2007. After completing testing, data analysis and post processing were performed. Especially, the models were instrumental in identifying some of the key issues with the experimental HVA system. Based upon the available engine test results during AC and AM modes, the projected fuel economy improvement over the NY composite cycle is 14.7%. This is close to but slightly lower than the originally estimated 18% from ADVISOR simulation. The APA project group demonstrated the concept of APA technology by using simulation and experimental testing. However, there are still exists of technical challenges to meet the original expectation of APA technology. The enabling technology of this concept, i.e. a fully flexible valve actuation system that can handle high back pressure from the exhaust manifold is identified as one of the major technical challenges for realizing the APA concept.

Hyungsuk Kang; Chun Tai

2010-05-01T23:59:59.000Z

109

Comparative Analysis on the Effects of Diesel Particulate Filter and  

E-Print Network (OSTI)

with no aftertreatment devices to establish a baseline measurement and also on the same engine equipped first with a DPF and secondary emissions significantly. Introduction Advances in diesel engine and aftertreatment technologies, samples were first collected from a heavy-duty diesel engine with no aftertreatment system to establish

Wu, Mingshen

110

Diesel Engine Alternatives  

DOE Green Energy (OSTI)

There are basically three different modes of combustion possible for use in reciprocating engines. These include, diffusion burning, as occurs in current diesel engines, flame propagation combustion such as used in conventional SI engines, and homogeneous combustion such as is used in the SwRI HCCI engine. Diesel engines currently offer significant fuel consumption benefits relative to other powerplants for on and off road applications; however, costs and efficiency may become problems as the emissions standards become even more stringent. This presentation presents a discussion of the potentials of HCCI and flame propagation engines as alternatives to the diesel engines. It is suggested that as the emissions standards become more and more stringent, the advantages of the diesel may disappear. The potential for HCCI is limited by the availability of the appropriate fuel. The potential of flame propagation engines is limited by several factors including knock, EGR tolerance, high BMEP operation, and throttling. These limitations are discussed in the context of potential for improvement of the efficiency of the flame propagation engine.

Ryan, T

2003-08-24T23:59:59.000Z

111

Transportable Heavy Duty Emissions Testing Laboratory and Research Program  

DOE Green Energy (OSTI)

The objective of this program was to quantify the emissions from heavy-duty vehicles operating on alternative fuels or advanced fuel blends, often with novel engine technology or aftertreatment. In the first year of the program West Virginia University (WVU) researchers determined that a transportable chassis dynamometer emissions measurement approach was required so that fleets of trucks and buses did not need to be ferried across the nation to a fixed facility. A Transportable Heavy-Duty Vehicle Emissions Testing Laboratory (Translab) was designed, constructed and verified. This laboratory consisted of a chassis dynamometer semi-trailer and an analytic trailer housing a full scale exhaust dilution tunnel and sampling system which mimicked closely the system described in the Code of Federal Regulations for engine certification. The Translab was first used to quantify emissions from natural gas and methanol fueled transit buses, and a second Translab unit was constructed to satisfy research demand. Subsequent emissions measurement was performed on trucks and buses using ethanol, Fischer-Tropsch fuel, and biodiesel. A medium-duty chassis dynamometer was also designed and constructed to facilitate research on delivery vehicles in the 10,000 to 20,000lb range. The Translab participated in major programs to evaluate low-sulfur diesel in conjunction with passively regenerating exhaust particulate filtration technology, and substantial reductions in particulate matter were recorded. The researchers also participated in programs to evaluate emissions from advanced natural gas engines with closed loop feedback control. These natural gas engines showed substantially reduced levels of oxides of nitrogen. For all of the trucks and buses characterized, the levels of carbon monoxide, oxides of nitrogen, hydrocarbons, carbon dioxide and particulate matter were quantified, and in many cases non-regulated species such as aldehydes were also sampled. Particle size was also quantified during selected studies. A laboratory was established at WVU to provide for studies which supported and augmented the Translab research, and to provide for development of superior emissions measurement systems. This laboratory research focused on engine control and fuel sulfur issues. In recent years, as engine and aftertreatment technologies advanced, emissions levels were reduced such that they were at or below the Translab detectable limits, and in the same time frame the US Environmental Protection Agency required improved measurement methodologies for engine emissions certification. To remain current and relevant, the researchers designed a new Translab analytic system, housed in a container which can be transported on a semi-trailer. The new system's dilution tunnel flow was designed to use a subsonic venturi with closed loop control of blower speed, and the secondary dilution and particulate matter filter capture were designed to follow new EPA engine certification procedures. A further contribution of the program has been the development of techniques for creating heavy-duty vehicle test schedules, and the creation of schedules to mimic a variety of truck and bus vocations.

David Lyons

2008-03-31T23:59:59.000Z

112

IMPACT OF OXYGENATED FUEL ON DIESEL ENGINE PERFORMANCE AND EMISSIONS  

DOE Green Energy (OSTI)

As evidenced by recent lawsuits brought against operators of large diesel truck fleets [1] and by the Consent Decree brought against the heavy-duty diesel manufacturers [2], the environmental and health effects of diesel engine emissions continue to be a significant concern. Reduction of diesel engine emissions has traditionally been achieved through a combination of fuel system, combustion chamber, and engine control modifications [3]. Catalytic aftertreatment has become common on modern diesel vehicles, with the predominant device being the diesel oxidation catalytic converter [3]. To enable advanced after-treatment devices and to directly reduce emissions, significant recent interest has focused on reformulation of diesel fuel, particularly the reduction of sulfur content. The EPA has man-dated that diesel fuel will have only 15 ppm sulfur content by 2007, with current diesel specifications requiring around 300 ppm [4]. Reduction of sulfur will permit sulfur-sensitive aftertreatment devices, continuously regenerating particulate traps, NOx control catalysts, and plasma assisted catalysts to be implemented on diesel vehicles [4]. Another method of reformulating diesel fuel to reduce emissions is to incorporate oxygen in the fuel, as was done in the reformulation of gasoline. The use of methyl tertiary butyl ether (MTBE) in reformulated gasoline has resulted in contamination of water resources across the country [5]. Nonetheless, by relying on the lessons learned from MTBE, oxygenation of diesel fuel may be accomplished without compromising water quality. Oxygenation of diesel fuel offers the possibility of reducing particulate matter emissions significantly, even for the current fleet of diesel vehicles. The mechanism by which oxygen content leads to particulate matter reductions is still under debate, but recent evidence shows clearly that ''smokeless'' engine operation is possible when the oxygen content of diesel fuel reaches roughly 38% by weight [6]. The potential improvements in energy efficiency within the transportation section, particularly in sport utility vehicles and light-duty trucks, that can be provided by deployment of diesel engines in passenger cars and trucks is a strong incentive to develop cleaner burning diesel engines and cleaner burning fuels for diesel engines. Thus, serious consideration of oxygenated diesel fuels is of significant practical interest and value to society. In the present work, a diesel fuel reformulating agent, CETANERTM, has been examined in a popular light-medium duty turbodiesel engine over a range of blending ratios. This additive is a mixture of glycol ethers and can be produced from dimethyl ether, which itself can be manufactured from synthesis gas using Air Products' Liquid Phase Dimethyl Ether (LPDME TM) technology. CETANERTM is a liquid, has an oxygen content of 36 wt.%, has a cetane number over 100 and is highly miscible in diesel fuel. This combination of physical and chemical properties makes CETANERTM an attractive agent for oxygenating diesel fuel. The present study considered CETANERTM ratios from 0 to 40 wt.% in a California Air Resources Board (CARB) specification diesel fuel. Particulate matter emissions, gaseous emissions and in-cylinder pressure traces were monitored over the AVL 8-Mode engine test protocol [7]. This paper presents the results from these measurements and discusses the implications of using high cetane number oxygenates in diesel fuel reformulation.

Boehman, Andre L.

2000-08-20T23:59:59.000Z

113

Heavy-Duty Emissions Control: Plasma-Facilitated vs Reformer-Assisted Lean NOx Catalysis  

DOE Green Energy (OSTI)

Progress has been made in the control of combustion processes to limit the formation of environmentally harmful species, but lean burn vehicles, such as those powered by diesel engines used for the majority of commercial trucking and off-road applications, remain a major source of nitrogen oxides (NOx) and particulate matter (PM) emissions. Tighter control of the combustion process coupled with exhaust gas recirculation has brought emissions in line with 2004 targets worldwide. Additional modifications to the engine control system, somewhat limited NOx control, and PM filters will likely allow the 2007 limits to be met for the on-highway regulations for heavy-duty engines in the United States. Concern arises when the NOx emission limit of 0.2 g/bhphr set for the year 2010 is considered.

(1)Aardahl, C; (1)Rozmiarek, R; (1)Rappe, K; (1)Mendoza, D (2)Park, P

2003-08-24T23:59:59.000Z

114

Opportunities for Low Cost Titanium in Reduced Fuel Consumption, Improved Emissions, and Enhanced Durability Heavy Duty Vehicles  

DOE Green Energy (OSTI)

The purpose of this study was to determine which components of heavy-duty highway vehicles are candidates for the substitution of titanium materials for current materials if the cost of those Ti components is very significantly reduced from current levels. The processes which could be used to produce those low cost components were also investigated. Heavy-duty highway vehicles are defined as all trucks and busses included in Classes 2C through 8. These include heavy pickups and vans above 8,500 lbs. GVWR, through highway tractor trailers. Class 8 is characterized as being a very cyclic market, with ''normal'' year volume, such as in 2000, of approximately 240,000 new vehicles. Classes 3-7 are less cyclic, with ''normal'' i.e., year 2000, volume totaling approximately 325,000 new vehicles. Classes 3-8 are powered about 88.5% by diesel engines, and Class 2C at very roughly 83% diesel. The engine portion of the study therefore focused on diesels. Vehicle production volumes were used in estimates of the market size for candidate components.

Kraft, E.H.

2002-07-22T23:59:59.000Z

115

Demonstration of Automated Heavy-Duty Vehicles  

E-Print Network (OSTI)

by compressed natural gas (CNG) in spark-ignition engines,buses are powered by a CNG spark-ignition engine, providedno matter whether it is a CNG or a diesel engine [4, 5].

2006-01-01T23:59:59.000Z

116

Alternative Fuels Data Center: Heavy-Duty Idle Reduction Requirement  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Idle Heavy-Duty Idle Reduction Requirement to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Idle Reduction Requirement on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Idle Reduction Requirement on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Idle Reduction Requirement on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Idle Reduction Requirement on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Idle Reduction Requirement on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Idle Reduction Requirement on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Heavy-Duty Idle Reduction Requirement Heavy-duty vehicles with a gross vehicle weight rating greater than 8,500

117

Emissions from Buses with DDC 6V92 Engines Using Synthetic Diesel Fuel  

DOE Green Energy (OSTI)

Synthetic diesel fuel can be made from a variety of feedstocks, including coal, natural gas and biomass. Synthetic diesel fuels can have very low sulfur and aromatic content, and excellent autoignition characteristics. Moreover, synthetic diesel fuels may also economically competitive with California diesel fuel if .roduced in large volumes. Previous engine laboratory and field tests using a heavy-duty chassis dynamometer indicate that synthetic diesel fuel made using the Fischer-Tropsch (F-T) catalytic conversion process is a promising alternative fuel, because it can be used in unmodified diesel engines, and can reduce exhaust emissions substantially. The objective of this study was a preliminary assessment of the emissions from older model transit operated on Mossgas synthetic diesel fuel. The study compared emissions from transit buses operating on Federal no. 2 Diesel fuel, Mossgas synthetic diesel (MGSD), and a 50/50 blend of the two fuels. The buses were equipped with unmodified Detroit Diesel 6V92 2-stroke diesel engines. Six 40-foot buses were tested. Three of the buses had recently rebuilt engines and were equipped with an oxidation catalytic converter. Vehicle emissions measurements were performed using West Virginia University's unique transportable chassis dynamometer. The emissions were measured over the Central Business District (CBD) driving cycle. The buses performed well on both neat and blended MGSD fuel. Three buses without catalytic converters were tested. Compared to their emissions when operating on Federal no. 2 diesel fuel, these buses emitted an average of 5% lower oxides of nitrogen (NOx) and 20% lower particulate matter (PM) when operating on neat MGSD fuel. Catalyst equipped buses emitted an average of 8% lower NOx and 31% lower PM when operating on MGSD than when operating on Federal no. 2 diesel fuel.

Paul Norton; Keith Vertin; Nigel N. Clark; Donald W. Lyons; Mridul Gautam; Stephen Goguen; James Eberhardt

1999-05-03T23:59:59.000Z

118

Coal-liquid fuel/diesel engine operating compatibility. Final report  

DOE Green Energy (OSTI)

This work is intended to assess the possibilities of using coal-derived liquids (CDL) represented by a specific type (SRC II) and shale-derived distillate fuel in blends of petroleum-derived fuels in medium-speed, high-output, heavy-duty diesel engines. Conclusions are as follows: (1) Blends of solvent refined coal and diesel fuel may be handled safely by experienced diesel engine mechanics. (2) A serious corrosion problem was found in the fuel pump parts when operating with solvent refined coal blended with petroleum. It is expected that a metallurgy change can overcome this problem. (3) Proper selection of materials for the fuel system is required to permit handling coal-derived liquid fuels. (4) A medium speed, high horsepower, 4-cycle diesel engine can be operated on blends of solvent refined coal and petroleum without serious consequences save the fuel system corrosion previously mentioned. This is based on a single, short durability test. (5) As represented by the product evaluated, 100% shale-derived distillate fuel may be used in a medium speed, high horsepower, 4-cycle diesel engine without significant consequences. (6) The shale product evaluated may be blended with petroleum distillate or petroleum residual materials and used as a fuel for medium speed, high horsepower, 4-cycle diesel engines. 7 references, 24 figures, 20 tables.

Hoffman, J.G.; Martin, F.W.

1983-09-01T23:59:59.000Z

119

VARIABLE CHARGE MOTION FOR 2007-2010 DIESEL ENGINES  

DOE Green Energy (OSTI)

The use of direct injection diesel engines in US heavy duty pickup truck applications is becoming increasingly popular with over 250,000 produced in 2002. The high torque density and greatly improved fuel consumption offer distinct advantages to the end user. 2007 and 2010 emissions legislation will present another set of technical and product cost challenges to this type of powertrain. The introduction of efficient aftertreatment systems is mandatory to the success of these engines but optimization of engine-out emissions is also a critical element. Much has been written on the improvements in modern fuel systems which offer great flexibility for the direct introduction of fuel into the cylinder. This paper presents complementary technologies which allow improved air/fuel mixing processes by the additional flexibility of variable in-cylinder charge motion. This approach is particularly applicable to pick-up truck engines, which require high BMEP levels across a wide engine speed range to offer the driveability demanded by the consumer. Design solutions for 2 valve and 4 valve engines are presented along with the potential emissions and fuel consumption benefits.

Maier, J

2003-08-24T23:59:59.000Z

120

Alternative Fuels Data Center: Heavy-Duty Vehicle Emissions Reduction  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Vehicle Heavy-Duty Vehicle Emissions Reduction Grants to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Vehicle Emissions Reduction Grants on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Vehicle Emissions Reduction Grants on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle Emissions Reduction Grants on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle Emissions Reduction Grants on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Vehicle Emissions Reduction Grants on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Vehicle Emissions Reduction Grants on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Heavy-Duty Vehicle Emissions Reduction Grants

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles  

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

Medium- and Medium- and Heavy-Duty Vehicles to someone by E-mail Share Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Facebook Tweet about Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Twitter Bookmark Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Google Bookmark Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Delicious Rank Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Digg Find More places to share Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on AddThis.com... Home Overview Light-Duty Vehicles Medium- and Heavy-Duty Vehicles Transit Vehicles Trucks Idle Reduction Oil Bypass Filter Airport Ground Support Equipment Medium and Heavy Duty Hybrid Electric Vehicles

122

Beyond Diesel - Renewable Diesel  

DOE Green Energy (OSTI)

CTTS fact sheet describing NREL's new Renewable Fuels and Lubricants (ReFUEL) Research Laboratory, which will be used to facilitate increased renewable diesel use in heavy-duty vehicles.

Not Available

2002-07-01T23:59:59.000Z

123

SELECTIVE CATALYTIC REDUCTION OF DIESEL ENGINE NOX EMISSIONS USING ETHANOL AS A REDUCTANT  

DOE Green Energy (OSTI)

NOx emissions from a heavy-duty diesel engine were reduced by more than 90% and 80% utilizing a full-scale ethanol-SCR system for space velocities of 21000/h and 57000/h respectively. These results were achieved for catalyst temperatures between 360 and 400 C and for C1:NOx ratios of 4-6. The SCR process appears to rapidly convert ethanol to acetaldehyde, which subsequently slipped past the catalyst at appreciable levels at a space velocity of 57000/h. Ammonia and N2O were produced during conversion; the concentrations of each were higher for the low space velocity condition. However, the concentration of N2O did not exceed 10 ppm. In contrast to other catalyst technologies, NOx reduction appeared to be enhanced by initial catalyst aging, with the presumed mechanism being sulfate accumulation within the catalyst. A concept for utilizing ethanol (distilled from an E-diesel fuel) as the SCR reductant was demonstrated.

(1)Kass, M; Thomas, J; Lewis, S; Storey, J; Domingo, N; Graves, R (2) Panov, A

2003-08-24T23:59:59.000Z

124

Hydrocarbon and Electrical Requirements in the Plasma During Treatment of NOx in Light-Duty Diesel Engine Exhaust  

DOE Green Energy (OSTI)

This paper examines the hydrocarbon (C{sub 1}/NO{sub x} ratio) and electrical energy density (ratio of power to exhaust flow rate) requirements in the plasma during plasma-assisted catalytic reduction of NO{sub x}. The requirements for treatment of NO{sub x} in heavy-duty and light-duty diesel engines are compared. It is shown that, for light-duty applications, the plasma can significantly enhance the catalytic reduction of NO{sub x} with little fuel penalty incurred in the plasma process.

Penetrante, B.; Brusasco,R.M.; Merritt, B.T.; Vogtlin, G.E.

1999-10-28T23:59:59.000Z

125

SCR SYSTEMS FOR HEAVY DUTY TRUCKS: PROGRESS TOWARDS MEETING EURO 4 EMISSION STANDARDS IN 2005  

DOE Green Energy (OSTI)

Emissions of diesel engines contain some components, which support the generation of smog and which are classified hazardous. Exhaust gas aftertreatment is a powerful tool to reduce the NOx and Particulate emissions. The NOx-emission can be reduced by the SCR technology. SCR stands for Selective Catalytic Reduction. A reduction agent has to be injected into the exhaust upstream of a catalyst. On the catalyst the NOx is reduced to N2 (Nitrogen) and H2O (Water). This catalytic process was developed in Japan about 30 years ago to reduce the NOx emission of coal-fired power plants. The first reduction agent used was anhydrous ammonia (NH3). SCR technology was used with diesel engines starting mid of the 80s. First applications were stationary operating generator-sets. In 1991 a joint development between DaimlerChrysler, MAN, IVECO and Siemens was started to use SCR technology for the reduction of heavy duty trucks. Several fleet tests demonstrated the durability of the systems. To day, SCR technology is the most promising technology to fulfill the new European Regulations EURO 4 and EURO 5 being effective Oct. 2005 and Oct. 2008. The efficient NOx reduction of the catalyst allows an engine calibration for low fuel consumption. DaimlerChrysler decided to use the SCR technology on every heavy duty truck and bus in Europe and many other truck manufacturers will introduce SCR technology to fulfill the 2005 emission regulation. The truck manufacturers in Europe agreed to use aqueous solution of Urea as reducing agent. The product is called AdBlue. AdBlue is a non toxic, non smelling liquid. The consumption is about 5% of the diesel fuel consumption to reduce the NOx emissions. A small AdBlue tank has to be installed to the vehicle. With an electronically controlled dosing system the AdBlue is injected into the exhaust. The dosing system is simple and durable. It has proven its durability during winter and summer testing as well as in fleet tests. The infrastructure for AdBlue is under evaluation in Europe by Urea Producers and Mineral Oil companies to be readily available in time. Urea is one of the most common chemical products in the world and the production and the distribution very much experienced. However, a pure grade is needed for automotive application and requires special attention.

Frank, W; Huethwohl, G; Maurer, B

2003-08-24T23:59:59.000Z

126

Advanced radiation techniques for inspection of diesel engine combustion chamber materials components. Final report  

DOE Green Energy (OSTI)

Heavy duty truck engines must meet stringent life cycle cost and regulatory requirements. Meeting these requirements has resulted in convergence on 4-stroke 6-in-line, turbocharged, and after-cooled engines with direct-injection combustion systems. These engines provide much higher efficiencies (42%, fuel consumption 200 g/kW-hr) than automotive engines (31%, fuel consumption 270 g/kW-hr), but at higher initial cost. Significant near-term diesel engine improvements are necessary and are spurred by continuing competitive, Middle - East oil problems and Congressional legislation. As a result of these trends and pressures, Caterpillar has been actively pursuing a low-fuel consumption engine research program with emphasis on product quality through process control and product inspection. The goal of this project is to combine the nondestructive evaluation and computational resources and expertise available at LLNL with the diesel engine and manufacturing expertise of the Caterpillar Corporation to develop in-process monitoring and inspection techniques for diesel engine combustion chamber components and materials. Early development of these techniques will assure the optimization of the manufacturing process by design/inspection interface. The transition from the development stage to the manufacturing stage requires a both a thorough understanding of the processes and a way of verifying conformance to process standards. NDE is one of the essential tools in accomplishing both elements and in this project will be integrated with Caterpillar`s technological and manufacturing expertise to accomplish the project goals.

NONE

1995-10-09T23:59:59.000Z

127

Emissions From Various Biodiesel Sources Compared to a Range of Diesel Fuels in DPF Equipped Diesel Engines  

DOE Green Energy (OSTI)

The purpose of this study was to measure the impact of various sources of petroleum-based and bio-based diesel fuels on regulated emissions and fuel economy in diesel particulate filter (DPF) equipped diesel engines. Two model year 2008 diesel engines were tested with nine fuels including a certification ultra-low sulfur diesel (ULSD), local ULSD, high aromatic ULSD, low aromatic ULSD, and twenty percent blends of biodiesel derived from algae, camelina, soy, tallow, and yellow grease. Regulated emissions were measured over the heavy duty diesel transient test cycle. Measurements were also made of DPF-out particle size distribution and total particle count from a 13-mode steady state test using a fast mobility particle sizer. Test engines were a 2008 Cummins ISB and a 2008 International Maxx Force 10, both equipped with actively regenerated DPFs. Fuel consumption was roughly 2% greater over the transient test cycle for the B20 blends versus certification ULSD in both engines, consistent with the slightly lower energy content of biodiesel. Unlike studies conducted on older model engines, these engines equipped with diesel oxidation catalysts and DPFs showed small or no measurable fuel effect on the tailpipe emissions of total hydrocarbons (THC), carbon monoxide (CO) and particulate matter (PM). No differences in particle size distribution or total particle count were seen in a comparison of certification ULSD and B20 soy, with the exception of engine idling conditions where B20 produced a small reduction in the number of nucleation mode particles. In the Cummins engine, B20 prepared from algae, camelina, soy, and tallow resulted in an approximately 2.5% increase in nitrogen oxides (NO{sub x}) compared to the base fuel. The International engine demonstrated a higher degree of variability for NO{sub x} emissions, and fuel effects could not be resolved (p > 0.05). The group of petroleum diesel test fuels produced a range of NO{sub x} emissions very similar to that caused by blending of biodiesel. Test cycles where an active regeneration of the DPF occurred resulted in a nearly threefold increase in NO{sub x} emissions and a 15% increase in fuel consumption. The full quantification of DPF regeneration events further complicates the accurate calculation of fuel impacts on emissions and fuel consumption.

Williams, A.; Burton, J.; Christensen, E.; McCormick, R. L.; Tester, J.

2011-01-01T23:59:59.000Z

128

Heavy-Duty Stoichiometric Compression Ignition Engine with Improved Fuel Economy over Alternative Technologies for Meeting 2010 On-Highway Emission  

DOE Green Energy (OSTI)

determined that EGR is not necessary for this advanced concept engine, and this greatly simplifies the concept.

Kirby J. Baumgard; Richard E. Winsor

2009-12-31T23:59:59.000Z

129

The Engineering Meetings Board has approved this paper for publication. It has successfully completed SAE's peer review process under the supervision of the session organizer. This process requires a minimum of three (3) reviews by industry experts.  

E-Print Network (OSTI)

through the use of engine optimization, aftertreatment system integration, and ultra-low sulfur diesel of Chemical Species from Heavy-Duty Diesel Engines and the Effects of Modern Aftertreatment Technology Z in increased emissions of HC and CO for engines without aftertreatment systems [9]. However, for the 2007

Wu, Mingshen

130

BPM Diesel Engineering | Open Energy Information  

Open Energy Info (EERE)

Diesel Engineering" Retrieved from "http:en.openei.orgwindex.php?titleBPMDieselEngineering&oldid342997" Categories: Clean Energy Organizations Companies Organizations...

131

Diesel Engine Light Truck Application  

DOE Green Energy (OSTI)

The Diesel Engine Light Truck Application (DELTA) program consists of two major contracts with the Department of Energy (DOE). The first one under DE-FC05-97-OR22606, starting from 1997, was completed in 2001, and consequently, a final report was submitted to DOE in 2003. The second part of the contract was under DE-FC05-02OR22909, covering the program progress from 2002 to 2007. This report is the final report of the second part of the program under contract DE-FC05-02OR22909. During the course of this contract, the program work scope and objectives were significantly changed. From 2002 to 2004, the DELTA program continued working on light-duty engine development with the 4.0L V6 DELTA engine, following the accomplishments made from the first part of the program under DE-FC05-97-OR22606. The program work scope in 2005-2007 was changed to the Diesel Particulate Filter (DPF) soot layer characterization and substrate material assessment. This final report will cover two major technical tasks. (1) Continuation of the DELTA engine development to demonstrate production-viable diesel engine technologies and to demonstrate emissions compliance with significant fuel economy advantages, covering progress made from 2002 to 2004. (2) DPF soot layer characterization and substrate material assessment from 2005-2007.

None

2007-12-31T23:59:59.000Z

132

Simulated fuel economy and emissions performance during city and interstate driving for a heavy-duty hybrid truck  

Science Conference Proceedings (OSTI)

We compare simulated fuel economy and emissions for both conventional and hybrid class 8 heavy-duty diesel trucks operating over multiple urban and highway driving cycles. Both light and heavy freight loads were considered, and all simulations included full aftertreatment for NOx and particulate emissions controls. The aftertreatment components included a diesel oxidation catalyst (DOC), urea-selective catalytic NOx reduction (SCR), and a catalyzed diesel particulate filter (DPF). Our simulated hybrid powertrain was configured with a pre-transmission parallel drive, with a single electric motor between the clutch and gearbox. A conventional HD truck with equivalent diesel engine and aftertreatment was also simulated for comparison. Our results indicate that hybridization can significantly increase HD fuel economy and improve emissions control in city driving. However, there is less potential hybridization benefit for HD highway driving. A major factor behind the reduced hybridization benefit for highway driving is that there are fewer opportunities to utilize regenerative breaking. Our aftertreatment simulations indicate that opportunities for passive DPF regeneration are much greater for both hybrid and conventional trucks during highway driving due to higher sustained exhaust temperatures. When passive DPF regeneration is extensively utilized, the fuel penalty for particulate control is virtually eliminated, except for the 0.4%-0.9% fuel penalty associated with the slightly higher exhaust backpressure.

Daw, C Stuart [ORNL; Gao, Zhiming [ORNL; Smith, David E [ORNL; LaClair, Tim J [ORNL; Pihl, Josh A [ORNL; Edwards, Kevin Dean [ORNL

2013-01-01T23:59:59.000Z

133

Advanced Vehicle Testing Activity - Medium and Heavy Duty Hybrid...  

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

an electric vehicle. Medium and heavy duty HEV testing results to date are posted below. Vehicle Testing Reports INL Hybrid Shuttle Busses INL Hybrid Shuttle Busses INL Hybrid...

134

A Distributed Framework for Coordinated Heavy-duty Vehicle ...  

E-Print Network (OSTI)

Dec 28, 2013 ... Abstract: Heavy-duty vehicles traveling in a single file with small intervehicle distances experience a reduced aerodynamic drag and therefore ...

135

OVERVIEW OF EMERGING CLEAN DIESEL ENGINE TECHNOLOGY  

DOE Green Energy (OSTI)

Diesel engines are the most realistic technology to achieve a major improvement in fuel economy in the next decade. In the US light truck market, i.e. Sport Utility Vehicles , pick-up trucks and mini-vans, diesel engines can more than double the fuel economy of similarly rated spark ignition (SI) gasoline engines currently in these vehicles. These new diesel engines are comparable to the SI engines in noise levels and 0 to 60 mph acceleration. They no longer have the traditional ''diesel smell.'' And the new diesel engines will provide roughly twice the service life. This is very significant for resale value which could more than offset the initial premium cost of the diesel engine over that of the SI gasoline engine. So why are we not seeing more diesel engine powered personal vehicles in the U.S.? The European auto fleet is comprised of a little over 30 percent diesel engine powered vehicles while current sales are about 50 percent diesel. In France, over 70 percent of the luxury class cars i.e. Mercedes ''S'' Class, BMW 700 series etc., are sold with the diesel engine option selected. Diesel powered BMW's are winning auto races in Germany. These are a typical of the general North American perspective of diesel powered autos. The big challenge to commercial introduction of diesel engine powered light trucks and autos is compliance with the Environmental Protection Agency (EPA) Tier 2, 2007 emissions standards. Specifically, 0.07gm/mile Oxides of Nitrogen (NOx) and 0.01 gm/mile particulates (PM). Although the EPA has set a series of bins of increasing stringency until the 2007 levels are met, vehicle manufacturers appear to want some assurance that Tier 2, 2007 can be met before they commit an engine to a vehicle.

Fairbanks, John

2001-08-05T23:59:59.000Z

136

Staged direct injection diesel engine  

DOE Patents (OSTI)

A diesel engine having staged injection for using lower cetane number fuels than No. 2 diesel fuel. The engine includes a main fuel injector and a pilot fuel injector. Pilot and main fuel may be the same fuel. The pilot injector injects from five to fifteen percent of the total fuel at timings from 20.degree. to 180.degree. BTDC depending upon the quantity of pilot fuel injected, the fuel cetane number and speed and load. The pilot fuel injector is directed toward the centerline of the diesel cylinder and at an angle toward the top of the piston, avoiding the walls of the cylinder. Stratification of the early injected pilot fuel is needed to reduce the fuel-air mixing rate, prevent loss of pilot fuel to quench zones, and keep the fuel-air mixture from becoming too fuel lean to become effective. In one embodiment, the pilot fuel injector includes a single hole for injection of the fuel and is directed at approximately 48.degree. below the head of the cylinder.

Baker, Quentin A. (San Antonio, TX)

1985-01-01T23:59:59.000Z

137

Heavy Duty Truck Engine Advancement Adoption  

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

petroleum consumption. According to the DOE Energy Information Administration's Annual Energy Outlook (AEO) 2009, U.S. heavy truck fuel consumption will increase 23 percent between...

138

Vehicle Technologies Office: 2004 Diesel Engine Emissions Reduction (DEER)  

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

Diesel Engine Diesel Engine Emissions Reduction (DEER) Conference Presentations to someone by E-mail Share Vehicle Technologies Office: 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentations on Facebook Tweet about Vehicle Technologies Office: 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentations on Twitter Bookmark Vehicle Technologies Office: 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentations on Google Bookmark Vehicle Technologies Office: 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentations on Delicious Rank Vehicle Technologies Office: 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentations on Digg Find More places to share Vehicle Technologies Office: 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentations on

139

Vehicle Technologies Office: 2006 Diesel Engine-Efficiency and...  

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

Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations to someone by E-mail Share Vehicle Technologies Office: 2006 Diesel Engine-Efficiency and Emissions...

140

Argonne TTRDC - Engines - Compression-Ignition - diesel, fuel...  

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

Compression Ignition Engines Clean Diesel Technologies for Greener Performance Mechanical engineer Alan Kastengren examines a diesel injection nozzle used in Argonne's X-ray spray...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Vehicle Technologies Office: 2002 Diesel Engine Emissions Reduction...  

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

a Medium-Duty Diesel Engine Shawn Whitacre National Renewable Energy Lab (PDF 356 KB) Natural Oils -- The Next Generation of Diesel Engine Lubricants? Joe Perez The...

142

Modeling the effects of late cycle oxygen enrichment on diesel engine combustion and emissions.  

DOE Green Energy (OSTI)

A multidimensional simulation of Auxiliary Gas Injection (AGI) for late cycle oxygen enrichment was exercised to assess the merits of AGI for reducing the emissions of soot from heavy duty diesel engines while not adversely affecting the NO{sub x} emissions of the engine. Here, AGI is the controlled enhancement of mixing within the diesel engine combustion chamber by high speed jets of air or another gas. The engine simulated was a Caterpillar 3401 engine. For a particular operating condition of this engine, the simulated soot emissions of the engine were reduced by 80% while not significantly affecting the engine-out NO{sub x} emissions compared to the engine operating without AGI. The effects of AGI duration, timing, and orientation are studied to confirm the window of opportunity for realizing lower engine-out soot while not increasing engine out NO{sub x} through controlled enhancement of in-cylinder mixing. These studies have shown that this window occurs during the late combustion cycle, from 20 to 60 crank angle degrees after top-dead-center. During this time, the combustion chamber temperatures are sufficiently high that soot oxidation increases in response in increased mixing, but the temperature is low enough that NO{sub x} reactions are quenched. The effect of the oxygen composition of the injected air is studied for the range of compositions between 21% and 30% oxygen by volume. This is the range of oxygen enrichment that is practical to produce from an air separation membrane. Simulations showed that this level of oxygen enrichment is insufficient to provide an additional benefit by either increasing the level of soot oxidation or prolonging the window of opportunity for increasing soot oxidation through enhanced mixing.

Mather, D. K.; Foster, D. E.; Poola, R. B.; Longman, D. E.; Chanda, A.; Vachon, T. J.

2002-02-28T23:59:59.000Z

143

Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Book)  

DOE Green Energy (OSTI)

Today's fleets are increasingly interested in medium-duty and heavy-duty vehicles that use alternative fuels or advanced technologies that can help reduce operating costs, meet emissions requirements, improve fleet sustainability, and support U.S. energy independence. Vehicle and engine manufacturers are responding to this interest with a wide range of options across a steadily growing number of vehicle applications. This guide provides an overview of alternative fuel power systems?including engines, microturbines, electric motors, and fuel cells?and hybrid propulsion systems. The guide also offers a list of individual medium- and heavy-duty vehicle models listed by application, along with associated manufacturer contact information, fuel type(s), power source(s), and related information.

Not Available

2013-08-01T23:59:59.000Z

144

Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicle...  

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

2003 City of Los Angeles Bureau of Sanitation Advanced Technology Vehicles in Service: LNG Heavy-Duty Trucks Coca-Cola Hybrid Electric Delivery Trucks Coca-Cola Refreshments...

145

Solid Oxide Fuel Cell Development for Auxiliary Power in Heavy Duty Vehicle Applications  

Science Conference Proceedings (OSTI)

Changing economic and environmental needs of the trucking industry is driving the use of auxiliary power unit (APU) technology for over the road haul trucks. The trucking industry in the United States remains the key to the economy of the nation and one of the major changes affecting the trucking industry is the reduction of engine idling. Delphi Automotive Systems, LLC (Delphi) teamed with heavy-duty truck Original Equipment Manufacturers (OEMs) PACCAR Incorporated (PACCAR), and Volvo Trucks North America (VTNA) to define system level requirements and develop an SOFC based APU. The project defines system level requirements, and subsequently designs and implements an optimized system architecture using an SOFC APU to demonstrate and validate that the APU will meet system level goals. The primary focus is on APUs in the range of 3-5 kW for truck idling reduction. Fuels utilized were derived from low-sulfur diesel fuel. Key areas of study and development included sulfur remediation with reformer operation; stack sensitivity testing; testing of catalyst carbon plugging and combustion start plugging; system pre-combustion; and overall system and electrical integration. This development, once fully implemented and commercialized, has the potential to significantly reduce the fuel idling Class 7/8 trucks consume. In addition, the significant amounts of NOx, CO2 and PM that are produced under these engine idling conditions will be virtually eliminated, inclusive of the noise pollution. The environmental impact will be significant with the added benefit of fuel savings and payback for the vehicle operators / owners.

Daniel T. Hennessy

2010-06-15T23:59:59.000Z

146

Update on Engine Combustion Research at Sandia National Laboratories  

DOE Green Energy (OSTI)

The objectives of this paper are to describe the research efforts in diesel engine combustion at Sandia National Laboratories' Combustion Research Facility and to provide recent experimental results. We have four diesel engine experiments supported by the Department of Energy, Office of Heavy Vehicle Technologies: a one-cylinder version of a Cummins heavy-duty engine, a diesel simulation facility, a one-cylinder Caterpillar engine to evaluate combustion of alternative fuels, and a homogeneous-charge, compression ignition (HCCI) engine. Recent experimental results of diesel combustion research will be discussed and a description will be given of our HCCI experimental program and of our HCCI modeling work.

Jay Keller; Gurpreet Singh

2001-05-14T23:59:59.000Z

147

A homogenous combustion catalyst for fuel efficiency improvements in diesel engines fuelled with diesel and biodiesel.  

E-Print Network (OSTI)

??[Truncated abstract] The ferrous picrate based homogeneous combustion catalyst has been claimed to promote diesel combustion and improve fuel efficiency in diesel engines. However, the… (more)

Zhu, Mingming

2012-01-01T23:59:59.000Z

148

Vehicle Technologies Office: 2008 Diesel Engine-Efficiency and Emissions  

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

8 Diesel 8 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations to someone by E-mail Share Vehicle Technologies Office: 2008 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Facebook Tweet about Vehicle Technologies Office: 2008 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Twitter Bookmark Vehicle Technologies Office: 2008 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Google Bookmark Vehicle Technologies Office: 2008 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Delicious Rank Vehicle Technologies Office: 2008 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Digg

149

Vehicle Technologies Office: 2007 Diesel Engine-Efficiency and Emissions  

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

7 Diesel 7 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations to someone by E-mail Share Vehicle Technologies Office: 2007 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Facebook Tweet about Vehicle Technologies Office: 2007 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Twitter Bookmark Vehicle Technologies Office: 2007 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Google Bookmark Vehicle Technologies Office: 2007 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Delicious Rank Vehicle Technologies Office: 2007 Diesel Engine-Efficiency and Emissions Research (DEER) Conference Presentations on Digg

150

Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Truck Idle Heavy-Duty Truck Idle Reduction Technologies to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on AddThis.com... More in this section... Idle Reduction Benefits & Considerations Heavy-Duty Vehicles Onboard Equipment Truck Stop Electrification

151

Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Requirements  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Truck Idle Heavy-Duty Truck Idle Reduction Requirements to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Requirements on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Requirements on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Requirements on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Requirements on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Requirements on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Requirements on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Heavy-Duty Truck Idle Reduction Requirements

152

Alternative Fuels Data Center: Heavy-Duty Emissions Reduction Grant Program  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Emissions Heavy-Duty Emissions Reduction Grant Program to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Emissions Reduction Grant Program on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Emissions Reduction Grant Program on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Emissions Reduction Grant Program on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Emissions Reduction Grant Program on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Emissions Reduction Grant Program on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Emissions Reduction Grant Program on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Heavy-Duty Emissions Reduction Grant Program

153

OH radical imaging in a DI diesel engine and the structure of the early diffusion flame  

DOE Green Energy (OSTI)

Laser-sheet imaging studies have considerably advanced our understanding of diesel combustion; however, the location and nature of the flame zones within the combusting fuel jet have been largely unstudied. To address this issue, planar laser-induced fluorescence (PLIF) imaging of the OH radical has been applied to the reacting fuel jet of a direct-injection diesel engine of the ``heavy-duty`` size class, modified for optical access. An Nd:YAG-based laser system was used to pump the overlapping Q{sub 1}9 and Q{sub 2}8 lines of the (1,0) band of the A{yields}X transition at 284.01 nm, while the fluorescent emission from both the (0,O) and (1, I) bands (308 to 320 nm) was imaged with an intensified video camera. This scheme allowed rejection of elastically scattered laser light, PAH fluorescence, and laser-induced incandescence. OH PLIF is shown to be an excellent diagnostic for diesel diffusion flames. The signal is strong, and it is confined to a narrow region about the flame front because the threebody recombination reactions that reduce high flame-front OH concentrations to equilibrium levels occur rapidly at diesel pressures. No signal was evident in the fuel-rich premixed flame regions where calculations and burner experiments indicate that OH concentrations will be below detectable limits. Temporal sequences of OH PLIF images are presented showing the onset and development of the early diffusion flame up to the time that soot obscures the images. These images show that the diffusion flame develops around the periphery of the-downstream portion of the reacting fuel jet about half way through the premixed burn spike. Although affected by turbulence, the diffusion flame remains at the jet periphery for the rest of the imaged sequence.

Dec, J.E.; Coy, E.B.

1996-03-01T23:59:59.000Z

154

THE DIESEL ENGINE'S CHALLENGE IN THE NEW MILLENIUM  

DOE Green Energy (OSTI)

Diesel engines are the dominant propulsion engine of choice for most of the commercial surface transportation applications in the world. Consider agricultural uses: Diesel engine power is used to prepare the soil, transport the bulk seed or seedlings, pump irrigation water, and spray fertilizers, mechanically harvest some crops and distribute the produce to market. Diesel engines power virtually all of the off-highway construction equipment. Deep water commercial freighters or containerships are almost all diesel engine powered. The passenger ships are primarily either diesel or a combination of diesel and gas turbine, referred to as CODAG or CODOG.

Fairbanks, John W.

2000-08-20T23:59:59.000Z

155

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology  

DOE Green Energy (OSTI)

Caterpillar's Technology & Solutions Division conceived, designed, built and tested an electric turbocompound system for an on-highway heavy-duty truck engine. The heart of the system is a unique turbochargerr with an electric motor/generator mounted on the shaft between turbine and compressor wheels. When the power produced by the turbocharger turbine exceeds the power of the compressor, the excess power is converted to electrical power by the generator on the turbo shaft; that power is then used to help turn the crankshaft via an electric motor mounted in the engine flywheel housing. The net result is an improvement in engine fuel economy. The electric turbocompound system provides added control flexibility because it is capable of varying the amount of power extracted from the exhaust gases, thus allowing for control of engine boost. The system configuration and design, turbocharger features, control system development, and test results are presented.

Hopman, Ulrich,; Kruiswyk, Richard W.

2005-07-05T23:59:59.000Z

156

Alternative Fuels Data Center: Clean Fuel Contracts for Heavy-Duty  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Clean Fuel Contracts Clean Fuel Contracts for Heavy-Duty Equipment to someone by E-mail Share Alternative Fuels Data Center: Clean Fuel Contracts for Heavy-Duty Equipment on Facebook Tweet about Alternative Fuels Data Center: Clean Fuel Contracts for Heavy-Duty Equipment on Twitter Bookmark Alternative Fuels Data Center: Clean Fuel Contracts for Heavy-Duty Equipment on Google Bookmark Alternative Fuels Data Center: Clean Fuel Contracts for Heavy-Duty Equipment on Delicious Rank Alternative Fuels Data Center: Clean Fuel Contracts for Heavy-Duty Equipment on Digg Find More places to share Alternative Fuels Data Center: Clean Fuel Contracts for Heavy-Duty Equipment on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Clean Fuel Contracts for Heavy-Duty Equipment

157

Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Truck Stop Truck Stop Electrification for Heavy-Duty Trucks to someone by E-mail Share Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Facebook Tweet about Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Twitter Bookmark Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Google Bookmark Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Delicious Rank Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Digg Find More places to share Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on AddThis.com... More in this section... Idle Reduction Benefits & Considerations Heavy-Duty Vehicles

158

Alternative Fuels Data Center: Heavy-Duty Vehicle Greenhouse Gas Emissions  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Vehicle Heavy-Duty Vehicle Greenhouse Gas Emissions Regulations to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Vehicle Greenhouse Gas Emissions Regulations on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Vehicle Greenhouse Gas Emissions Regulations on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle Greenhouse Gas Emissions Regulations on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle Greenhouse Gas Emissions Regulations on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Vehicle Greenhouse Gas Emissions Regulations on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Vehicle Greenhouse Gas Emissions Regulations on AddThis.com... More in this section... Federal

159

Alternative Fuels Data Center: Heavy-Duty Alternative Fuel and Advanced  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Alternative Heavy-Duty Alternative Fuel and Advanced Vehicle Purchase Vouchers to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Alternative Fuel and Advanced Vehicle Purchase Vouchers on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Alternative Fuel and Advanced Vehicle Purchase Vouchers on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Alternative Fuel and Advanced Vehicle Purchase Vouchers on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Alternative Fuel and Advanced Vehicle Purchase Vouchers on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Alternative Fuel and Advanced Vehicle Purchase Vouchers on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Alternative Fuel and Advanced Vehicle Purchase Vouchers on AddThis.com...

160

Advanced Vehicle Testing Activity - Diesel Engine Idling Test  

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

Diesel Engine Idling Test In support of the Department of Energys FreedomCAR and Vehicle Technologies Program goal to minimize diesel engine idling and reduce the consumption of...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Engines - Fuel Injection and Spray Research - Diesel Sprays  

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

Diesel Sprays Diesel Sprays Chris Powell and fuel spray xray beamline Christopher Powell, an engine research scientist, fits a specially designed X-ray pressure window to a high-pressure chamber used in diesel spray research. These windows allow Argonne researchers to use X-rays to probe diesel sprays under the high-density conditions found in diesel engines. Diesel sprays Diesel engines are significantly more fuel-efficient than their gasoline counterparts, so wider adoption of diesels in the U.S. would decrease the nationÂ’s petroleum consumption. However, diesels emit much higher levels of pollutants, especially particulate matter and NOx (nitrogen oxides). These emissions have prevented more manufacturers from introducing diesel passenger cars. Researchers are exploring ways to reduce pollution formation in the engine

162

Light-duty diesel engine development status and engine needs  

DOE Green Energy (OSTI)

This report reviews, assesses, and summarizes the research and development status of diesel engine technology applicable to light-duty vehicles. In addition, it identifies specific basic and applied research and development needs in light-duty diesel technology and related health areas where initial or increased participation by the US Government would be desirable. The material presented in this report updates information provided in the first diesel engine status report prepared by the Aerospace Corporation for the Department of Energy in September, 1978.

Not Available

1980-08-01T23:59:59.000Z

163

3M heavy duty roto peen: Baseline report; Greenbook (chapter)  

SciTech Connect

The heavy-duty roto peen technology is being evaluated at Florida International University (FIU) as a baseline technology. It is a commercially available technology and has been used for various projects at locations throughout the country. In conjunction with FIU`s evaluation of efficiency and cost, this report covers the human factors assessment for safety and health issues. The heavy-duty roto peen allows for the selective removal of concrete substrates. The peen is a tungsten carbide shot brazed to a hardened steel rivet that is supported by a heavy-duty flexible flap. The shot rivet is kept captive to the tool by mounting the roto peen in a slotted hub. The heavy-duty roto peen is designed to be used with several commercially available pieces of equipment. The equipment being used will determine the width of each pass. The equipment being used with the roto peen is then connected to a vacuum system for dust collection during scabbling. The safety and health evaluation during the human factors assessment focused on two main areas: noise and dust.

NONE

1997-07-31T23:59:59.000Z

164

3M heavy duty roto peen: Baseline report  

SciTech Connect

The heavy-duty roto peen technology was being evaluated at Florida International University (FIU) as a baseline technology. It is a commercially available technology and has been used for various projects at locations throughout the country. In conjunction with FIU`s evaluation of efficiency and cost, this report covers the human factors assessment for safety and health issues. The heavy-duty roto peen allows for the selective removal of concrete substrates. The peen is a tungsten carbide shot brazed to a hardened steel rivet that is supported by a heavy-duty flexible flap. The shot rivet is kept captive to the tool by mounting the roto peen in a slotted hub. The heavy-duty roto peen is designed to be used with several commercially available pieces of equipment. The equipment being used will determine the width of each pass. The equipment being used with the roto peen is then connected to a vacuum system for dust collection during scabbling. The safety and health evaluation during the human factors assessment focused on two main areas: noise and dust.

NONE

1997-07-31T23:59:59.000Z

165

Impact of Heavy Duty Vehicle Emissions Reductions on Global Climate  

Science Conference Proceedings (OSTI)

The impact of a specified set of emissions reductions from heavy duty vehicles on climate change is calculated using the MAGICC 5.3 climate model. The integrated impact of the following emissions changes are considered: CO2, CH4, N2O, VOC, NOx, and SO2. This brief summarizes the assumptions and methods used for this calculation.

Calvin, Katherine V.; Thomson, Allison M.

2010-08-01T23:59:59.000Z

166

Bus Research and Testing Program Heavy-duty Chassis Dynamometer and Emissions Testing Facility  

E-Print Network (OSTI)

Bus Research and Testing Program Heavy-duty Chassis Dynamometer and Emissions Testing Facility, hydrocarbons and carbon dioxide from transit buses and heavy-duty vehicles when they are tested on simulated includes a heavy-duty chassis dynamometer, required for conducting these tests, as well as a heavy

Lee, Dongwon

167

Modeling Species Inhibition of NO Oxidation in Urea-SCR Catalysts for Diesel Engine NOx Control  

DOE Green Energy (OSTI)

Urea-selective catalytic reduction (SCR) catalysts are regarded as the leading NOx aftertreatment technology to meet the 2010 NOx emission standards for on-highway vehicles running on heavy-duty diesel engines. However, issues such as low NOx conversion at low temperature conditions still exist due to various factors, including incomplete urea thermolysis, inhibition of SCR reactions by hydrocarbons and H2O. We have observed a noticeable reduction in the standard SCR reaction efficiency at low temperature with increasing water content. We observed a similar effect when hydrocarbons are present in the stream. This effect is absent under fast SCR conditions where NO ~ NO2 in the feed gas. As a first step in understanding the effects of such inhibition on SCR reaction steps, kinetic models that predict the inhibition behavior of H2O and hydrocarbons on NO oxidation are presented in the paper. A one-dimensional SCR model was developed based on conservation of species equations and was coded as a C-language S-function and implemented in Matlab/Simulink environment. NO oxidation and NO2 dissociation kinetics were defined as a function of the respective adsorbate’s storage in the Fe-zeolite SCR catalyst. The corresponding kinetic models were then validated on temperature ramp tests that showed good match with the test data. Such inhibition models will improve the accuracy of model based control design for integrated DPF-SCR aftertreatment systems.

Devarakonda, Maruthi N.; Tonkyn, Russell G.; Tran, Diana N.; Lee, Jong H.; Herling, Darrell R.

2011-04-20T23:59:59.000Z

168

Modeling Species Inhibition of NO oxidation in Urea-SCR Catalysts for Diesel Engine NOx Control  

DOE Green Energy (OSTI)

Urea-selective catalytic reduction (SCR) catalysts are regarded as the leading NOx aftertreatment technology to meet the 2010 NOx emission standards for on-highway vehicles running on heavy-duty diesel engines. However, issues such as low NOx conversion at low temperature conditions still exist due to various factors, including incomplete urea thermolysis, inhibition of SCR reactions by hydrocarbons and H2O. We have observed a noticeable reduction in the standard SCR reaction efficiency at low temperature with increasing water content. We observed a similar effect when hydrocarbons are present in the stream. This effect is absent under fast SCR conditions where NO ~ NO2 in the feed gas. As a first step in understanding the effects of such inhibition on SCR reaction steps, kinetic models that predict the inhibition behavior of H2O and hydrocarbons on NO oxidation are presented in the paper. A one-dimensional SCR model was developed based on conservation of species equations and was coded as a C-language S-function and implemented in Matlab/Simulink environment. NO oxidation and NO2 dissociation kinetics were defined as a function of the respective adsorbate’s storage in the SCR catalyst. The corresponding kinetic models were then validated on temperature ramp tests that showed good match with the test data.

Devarakonda, Maruthi N.; Tonkyn, Russell G.; Tran, Diana N.; Lee, Jong H.; Herling, Darrell R.

2010-09-15T23:59:59.000Z

169

Demonstrating and evaluating heavy-duty alternative fuel operations  

DOE Green Energy (OSTI)

The principal objectives of this project was to understand the effects of using an alternative fuel on a truck operating fleet through actual operation of trucks. Information to be gathered was expected to be anecdotal, as opposed to statistically viable, because the Trucking Research institute (TRI) recognized that projects could not attract enough trucks to produce statistically credible volumes of data. TRI was to collect operational data, and provide them to NREL, who would enter the data into the alternative fuels database being constructed for heavy-duty trucks at the time. NREL would also perform data analysis, with the understanding that the demonstrations were generally pre-production model engines and vehicles. Other objectives included providing information to the trucking industry on the availability of alternative fuels, developing the alternative fuels marketplace, and providing information on experience with alternative fuels. In addition to providing information to the trucking industry, an objective was for TRI to inform NREL and DOE about the industry, and give feedback on the response of the industry to developments in alternative fuels in trucking. At the outset, only small numbers of vehicles participated in most of the projects. Therefore, they had to be considered demonstrations of feasibility, rather than data gathering tests from which statistically significant conclusions might be drawn. Consequently, data gathered were expected to be useful for making estimates and obtaining valuable practical lessons. Project data and lessons learned are the subjects of separate project reports. This report concerns itself with the work of TRI in meeting the overall objectives of the TRI-NREL partnership.

Peerenboom, W. [Trucking Research Inst., Alexandria, VA (United States)] [Trucking Research Inst., Alexandria, VA (United States)

1998-02-01T23:59:59.000Z

170

Heavy Vehicle and Engine Resource Guide  

DOE Green Energy (OSTI)

A comprehensive product catalog of medium and heavy-duty engines and vehicles with alternative fuel and advanced powertrain options.

Not Available

2001-10-01T23:59:59.000Z

171

Exploring Low Emission Lubricants for Diesel Engines  

DOE Green Energy (OSTI)

A workshop to explore the technological issues involved with the removal of sulfur from lubricants and the development of low emission diesel engine oils was held in Scottsdale, Arizona, January 30 through February 1, 2000. It presented an overview of the current technology by means of panel discussions and technical presentations from industry, government, and academia.

Perez, J. M.

2000-07-06T23:59:59.000Z

172

Vehicle Technologies Office: 2005 Diesel Engine Emissions Reduction...  

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

391 KB) Lung Toxicity and Mutagenicity of Emissions from Heavy-Duty Compressed Natural Gas (CNG)-Powered Vehicles Joe Mauderly Lovelace Respiratory Research Institute (PDF 325...

173

Vibrational energy transfer in a diesel engine  

Science Conference Proceedings (OSTI)

The paths of vibrational energy transfer in a diesel engine were investigated in order to obtain insight into ways of reducing this transfer to the exterior surfaces and thereby reduce the radiated noise. The engine was tested in a nonrunning condition with simulated internal forces in order to study the different transfer paths separately. Vibration response measurements were made of individual engine components and lumped?parameter models were developed to simulate this response. These models were then used to determine component design changes that would reduce the energy transfer. Two design changes were implemented in the engine and a reduction of the energy transfer was achieved as predicted.

R. G. DeJong; R. H. Lyon

1977-01-01T23:59:59.000Z

174

Utilization of alternative fuels in diesel engines:  

DOE Green Energy (OSTI)

The thrust of this resarch program has been to determine the effect of various alternative and synthetic fuels on the performance and emissions from Diesel engines. The purpose of research was to investigate the various fuels for extension of existing supplies or as emergency substitutes for Diesel fuels. Thus, the work did not emphasize optimization of the engines for a given fuel;the engines were generally run at manufacturers specifications for conventional fuels. During the various studies, regulated and unregualted emissions were investigated and the biological activity of the soluble organics on the particulate emissions was determined using the Ames test procedure. During the present contract period, three experimental programs were carried out. The first program investigated the utilization of methane and propane in an indirect injection, multicylinder engine. In the other two studies, a single cylinder direct injection Diesel engine was used to investigate the performance and emission characteristics of synthetic fuels derived from tar sands and oil shale and of three fuels derived from coal by the Exxon Donor Solvent (EDS) process. The body of this report consists of three chapters which summarize the experimental equipment, procedures, and major results from the studies of methane and propane fumigation, of synthetic fuels from oil shale and tar sands and of the coal-derived fuels.

Not Available

1987-06-01T23:59:59.000Z

175

Argonne TTRDC - Feature - Five Myths About Diesel Engines  

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

Five Myths About Diesel Engines Five Myths About Diesel Engines by Louise Lerner Steve Ciatti Steve Ciatti in the Engine Research Facility Diesel engines, long confined to trucks and ships, are garnering more interest for their fuel efficiency and reduced carbon dioxide emissions relative to gasoline engines. Argonne mechanical engineer Steve Ciatti takes a crack at some of the more persistent myths surrounding the technology. Myth #1: Diesel is dirty. "We all have this image of trucks belching out dirty black smoke," Ciatti said. This smoke is particulate matter from diesel exhaust: soot and small amounts of other chemicals produced by the engine. But EPA emissions requirements have significantly tightened, and diesel engines now have to meet the same criteria as gasoline engines. They do

176

The Intelligent Study on Diesel-LNG Dual Fuel Marine Diesel Engine  

Science Conference Proceedings (OSTI)

In this article, a diesel engine named "X6170ZC" has been converted into a dual-fuel engine of diesel and liquefied natural gas (LNG). The principle, composition and characteristics of electronic control system for the engine have been introduced. An ... Keywords: engine, dual-fuel, intelligent

Zhang Liang

2012-03-01T23:59:59.000Z

177

Emissions Benefits From Renewable Fuels and Other Alternatives for Heavy-Duty Vehicles  

E-Print Network (OSTI)

a wide range of engine and aftertreatment configurations. 6–differences in the engine and aftertreatment technologies,especially as diesel engine and aftertreatment technology

Hajbabaei, Maryam

2013-01-01T23:59:59.000Z

178

Clean and Efficient Diesel Engine  

DOE Green Energy (OSTI)

Task 1 was to design study for fuel-efficient system configuration. The objective of task 1 was to perform a system design study of locomotive engine configurations leading to a 5% improvement in fuel efficiency. Modeling studies were conducted in GT-Power to perform this task. GT-Power is an engine simulation tool that facilitates modeling of engine components and their system level interactions. It provides the capability to evaluate a variety of engine technologies such as exhaust gas circulation (EGR), variable valve timing, and advanced turbo charging. The setup of GT-Power includes a flexible format that allows the effects of variations in available technologies (i.e., varying EGR fractions or fuel injection timing) to be systematically evaluated. Therefore, development can be driven by the simultaneous evaluation of several technology configurations.

None

2010-12-31T23:59:59.000Z

179

Engines - Particulate Studies - Revealing the True Nature of Diesel  

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

Engine Nanoparticle Research: Revealing the True Nature of Diesel Particulates Engine Nanoparticle Research: Revealing the True Nature of Diesel Particulates Thermophoretic sampling device Argonne's test engine with the thermophoretic sampling device attached. Nanostructure of graphitic diesel soot under high engine load A transmission electron microscope reveals the nanostructures of graphitic diesel soot sampled under high engine loads. Morphology of particles collected from diesel combustion with iso-paraffin-enriched fuel. Morphology of particles collected from diesel combution with iso-paraffin-enriched fuel. Amorphous soot particle collected from biodiesel combustion undera low-temperature condition. Amorphous soot particle collected from biodiesel combustion under low temperature conditions. Researchers have many ideas about how to reduce the soot produced by diesel

180

Utiization of alternate fuels in diesel engines  

DOE Green Energy (OSTI)

Accomplishments during three years entitled The Utilization of Alternate Fuels in Diesel Engines are summarized. Experiments were designed and test equipment set-up for the purpose of evaluating the use of methanol as a fumigant for light-duty Diesel engine service. The major experimental results were obtained from a multicylinder automotive Diesel engine. However, fundamental studies employing a GC/micro-reactor and a constant volume combustion bomb were also started. The purpose of this work was to measure some of the chemical and physical properties of methanol and methanol-air mixtures. The laminar flame velocity for various mixtures has been measured in the combustion bomb and thermal degradation studies have begun in the GC/micro-reactor. An Oldsmobile 5.7 liter V/8 Diesel engine was fumigated with methanol in amounts up to 40% of the fuel energy. The primary objectives of the study were to determine the effect of methanol fumigation on fuel efficiency, smoke, nitric oxide emission, and the occurrence of severe knock. An assessment of the biological activity for samples of the raw exhaust particulate and its soluble organic extract was also made using boh the Ames Salmonella typhimurium test and the B. subtilis Comptest. Generally, methanol fumigation was found to decrease NO emission for all conditions, to have a slight effect on smoke opacity, and to have a beneficial effect on fuel efficiency at higher loads. Also at higher loads, the methanol was found to induce what was defined as knock limited operation. The biological activity of the raw particulate matter was fond to be less than that of its soluble organic extract. However, for both the fumigation of methanol did enhance the biological activity.

Lestz, S.S.

1980-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Argonne TTRDC - Feature - Combining Gas and Diesel Engines  

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

Combining Gas and Diesel Engines Could Yield the Best of Both Worlds Combining Gas and Diesel Engines Could Yield the Best of Both Worlds by Louise Lerner Steve Ciatti Steve Ciatti in the Engine Research Facility It may be hard to believe, but the beloved gasoline engine that powers more than 200 million cars across America every day didn't get its status because it's the most efficient engine. Diesel engines can be more than twice as efficient, but they spew soot and pollutants into the air. Could researchers at the U.S. Department of Energy's Argonne National Laboratory engineer a union between the two-combining the best of both? Steve Ciatti, a mechanical engineer at Argonne, is heading a team to explore the possibilities of a gasoline-diesel engine. The result, so far, is cleaner than a diesel engine and almost twice as efficient as a typical

182

Emissions from Trucks using Fischer-Tropsch Diesel Fuel  

DOE Green Energy (OSTI)

The Fischer-Tropsch (F-T) catalytic conversion process can be used to synthesize diesel fuels from a variety of feedstocks, including coal, natural gas and biomass. Synthetic diesel fuels can have very low sulfur and aromatic content, and excellent autoignition characteristics. Moreover, Fischer-Tropsch diesel fuels may also be economically competitive with California B- diesel fuel if produced in large volumes. overview of Fischer-Tropsch diesel fuel production and engine emissions testing is presented. Previous engine laboratory tests indicate that F-T diesel is a promising alternative fuel because it can be used in unmodified diesel engines, and substantial exhaust emissions reductions can be realized. The authors have performed preliminary tests to assess the real-world performance of F-T diesel fuels in heavy-duty trucks. Seven White-GMC Class 8 trucks equipped with Caterpillar 10.3 liter engines were tested using F-T diesel fuel. Vehicle emissions tests were performed using West Virginia University's unique transportable chassis dynamometer. The trucks were found to perform adequately on neat F-T diesel fuel. Compared to a California diesel fuel baseline, neat F-T diesel fuel emitted about 12% lower oxides of nitrogen (NOx) and 24% lower particulate matter over a five-mile driving cycle.

Paul Norton; Keith Vertin; Brent Bailey; Nigel N. Clark; Donald W. Lyons; Stephen Goguen; James Eberhardt

1998-10-19T23:59:59.000Z

183

Cummins Light Truck Diesel Engine Progress Report  

DOE Green Energy (OSTI)

Cummins has studied requirements of the Light Truck Automotive market in the United States and believes that the proposed V-family of engines meets those needs. Design and development of the V-family engine system continues and has expanded. The engine system is a difficult one, since the combined requirements of a very fuel-efficient commercial diesel, and the performance and sociability requirements of a gasoline engine are needed. Results of testing show that the engine can meet requirements for fuel economy and emissions in the Tier 2 interim period from 2004 to 2008. Advanced results show that the full Tier 2 results for 2008 and beyond can be achieved on a laboratory basis.

John H. Stang; David E. Koeberlein; Michael J. Ruth

2001-05-14T23:59:59.000Z

184

Proceedings of the 1998 diesel engine emissions reduction workshop [DEER  

DOE Green Energy (OSTI)

This workshop was held July 6--9, 1998 in Castine, Maine. The purpose of this workshop was to provide a multidisciplinary forum for exchange of state-of-the-art information on reduction of diesel engine emissions. Attention was focused on the following: agency/organization concerns on engine emissions; diesel engine issues and challenges; health risks from diesel engines emissions; fuels and lubrication technologies; non-thermal plasma and urea after-treatment technologies; and diesel engine technologies for emission reduction 1 and 2.

NONE

1998-12-31T23:59:59.000Z

185

A WEAR MODEL FOR DIESEL ENGINE EXHAUST VALVES  

DOE Green Energy (OSTI)

The work summarized here comprises the concluding effort of a multi-year project, funded by the U.S. Department of Energy, Office of Vehicle Technologies. It supports the development of a better understanding of advanced diesel engine designs in which enhanced power density, energy efficiency, and emissions control place increasing demands upon the durability of engine materials. Many kinds of metallic alloys are used in engines depending on the operating stresses, temperatures, and chemical environments. Exhaust valves, for example, are subjected to high temperatures and repetitive surface contacts that place demands on durability and frictional characteristics of the materials. Valves must continue to seal the combustion chamber properly for thousands of hours of cyclic engine operation and under varying operating conditions. It was the focus of this effort to understand the wear processes in the valve-seat area and to develop a model for the surface deformation and wear of that important interface. An annotated bibliography is provided to illustrate efforts to understand valve wear and to investigate the factors of engine operation that affect its severity and physical manifestation. The project for which this modeling effort was the final task, involved construction of a high-temperature repetitive impact test system as well as basic tribology studies of the combined processes of mechanical wear plus oxidation at elevated temperatures. Several publications resulted from this work, and are cited in this report. The materials selected for the experimental work were high-performance alloys based on nickel and cobalt. In some cases, engine-tested exhaust valves were made available for wear analysis and to ensure that the modes of surface damage produced in experiments were simulative of service. New, production-grade exhaust valves were also used to prepare test specimens for experimental work along with the other alloy samples. Wear analysis of valves and seats run for hundreds of hours in heavy-duty diesels provided insights into the kinds of complexity that the contact conditions in engines can produce, and suggested the physical basis for the current approach to modeling. The model presented here involves four terms, two representing the valve response and two for its mating seat material. The model's structure assumes that wear that takes place under a complex combination of plastic deformation, tangential shear, and oxidation. Tribolayers form, are removed, and may reform. Layer formation affects the friction forces in the interface, and in turn, the energy available to do work on the materials to cause wear. To provide friction data for the model at various temperatures, sliding contact experiments were conducted from 22 to 850 C in a pin-on-disk apparatus at ORNL. In order to account for the behavior of different materials and engine designs, parameters in all four terms of the model can be adjusted to account for wear-in and incubation periods before the dominant wear processes evolve to their steady-state rates. For example, the deformation rate is assumed to be maximum during the early stages of operation, and then, due to material work-hardening and the increase in nominal contact area (which reduces the load per unit area), decreases to a lower rate at long times. Conversely, the rate of abrasion increases with time or number of cycles due to the build-up of oxides and tribo-layers between contact surfaces. The competition between deformation and abrasion results in complex, non-linear behavior of material loss per cycle of operation. Furthermore, these factors are affected by valve design features, such as the angle of incline of the valve seat. Several modeling scenarios are presented to demonstrate how the wear profile versus number of cycles changes in response to: (a) different relative abrasion rates of the seat and valve materials, (b) the friction coefficient as a function of temperature, (c) the relative deformation contribution of valve and seat materials, and (d) an interruption in the dominant we

Blau, Peter Julian [ORNL

2009-11-01T23:59:59.000Z

186

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...

187

The effect of TDC temperature and density on the liquid-phase fuel penetration in a D.I. Diesel engine  

DOE Green Energy (OSTI)

A parametric study of the liquid-phase fuel penetration of evaporating Diesel fuel jets has been conducted in a directinjection Diesel engine using laser elastic-scatter imaging. The experiments were conducted in an optically accessible Diesel engine of the ``heavy-duty`` size class at a representative medium speed (1200 rpm) operating condition. The density and temperature at TDC were varied systematically by adjusting the intake temperature and pressure. At all operating conditions the measurements show that initially the liquid fuel penetrates almost linearly with increasing crank angle until reaching a maximum length. Then, the liquid-fuel penetration length remains fairly constant although fuel injection continues. At a TDC density of 16.6 kg/m{sup 3} and a temperature of about 1000 K the maximum penetration length is approximately 23 mm. However, it varies significantly as TDC conditions are changed, with the liquid-length being less at higher temperatures and at higher densities. The corresponding apparent heat release rate plots are presented and the results of the liquid-phase fuel penetration are discussed with respect to the ignition delay and premixed bum fraction.

Espey, C. [Daimler-Benz AG, Stuttgart (Germany); Dec, J.E. [Sandia National Labs., Albuquerque, NM (United States)

1995-12-01T23:59:59.000Z

188

Nonthermal aftertreatment of diesel engine exhaust  

DOE Green Energy (OSTI)

The ultimate objective of this work has been to develop a nonthermal plasma process to reduce NO{sub x} in diesel exhaust gas. A secondary objective has been to study the possibility of particulate matter (soot) reduction by the same technique. The early work revealed a fundamental difficulty with this NO{sub x} reduction approach in the gas environment of the diesel engine exhaust. These observations necessitated a thorough study of the unfavorable chemistry in the hope that knowledge of the chemical mechanism would offer an opportunity to make the approach useful for NO{sub x} reduction. Whereas fundamental understanding of the mechanism has been obtained, the authors have not found any measure that would make the approach meet its original objective.

Wallman, P.H.; Hsiao, M.C.; Merritt, B.T.; Penetrante, B.M.; Vogtlin, G.E.

1995-09-22T23:59:59.000Z

189

California's efforts to clean up diesel engines have helped reduce...  

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

Contacts California's efforts to clean up diesel engines have helped reduce impact of climate change on state, study finds CARB black carbon study shows decrease in emissions...

190

DOE/VTP Light-Duty Diesel Engine Commercialization  

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

VTP Light-Duty Diesel Engine Commercialization VTP Light-Duty Diesel Engine Commercialization Vehicle Technologies Program (VTP) spearheaded the development of clean diesel engine technologies for passenger vehicles in the 1990s, spurring the current reintroduction of highly efficient diesel vehicles into the passenger market. Cummins partnered with VTP to develop a diesel engine that meets the 50-state 2010 emissions standards while boosting vehicle fuel economy by 30% over comparable gasoline-powered vehicles. The Cummins engine is scheduled to debut in 2010 Chrysler sport utility vehicles and pickup trucks. VTP-sponsored research demonstrated the ability of diesel passenger vehicles with advanced aftertreatment to meet EPA's stringent Tier II Bin 5 standards, representing an 83% reduction in NOx and more than 87% reduction in

191

Clean Cities' Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Brochure)  

DOE Green Energy (OSTI)

Guide describes the alternative fuel and advanced medium- and heavy-duty vehicles available on the market, including buses, vans, refuse haulers, and more.

Not Available

2010-09-01T23:59:59.000Z

192

Heavy Truck Engine Program  

DOE Green Energy (OSTI)

The Heavy Duty Truck Engine Program at Cummins embodied three significant development phases. All phases of work strove to demonstrate a high level of diesel engine efficiency in the face of increasingly stringent emission requirements. Concurrently, aftertreatment system development and refinement was pursued in support of these efficiency demonstrations. The program's first phase focused on the demonstration in-vehicle of a high level of heavy duty diesel engine efficiency (45% Brake Thermal Efficiency) at a typical cruise condition while achieving composite emissions results which met the 2004 U.S. EPA legislated standards. With a combination of engine combustion calibration tuning and the development and application of Urea-based SCR and particulate aftertreatment, these demonstrations were successfully performed by Q4 of 2002. The second phase of the program directed efforts towards an in-vehicle demonstration of an engine system capable of meeting 2007 U.S. EPA legislated emissions requirements while achieving 45% Brake Thermal Efficiency at cruise conditions. Through further combustion optimization, the refinement of Cummins Cooled EGR architecture, the application of a high pressure common rail fuel system and the incorporation of optimized engine parasitics, Cummins Inc. successfully demonstrated these deliverables in Q2 of 2004. The program's final phase set a stretch goal of demonstrating 50% Brake Thermal Efficiency from a heavy duty diesel engine system capable of meeting 2010 U.S. EPA legislated emissions requirements. Cummins chose to pursue this goal through further combustion development and refinement of the Cooled EGR system architecture and also applied a Rankine cycle Waste Heat Recovery technique to convert otherwise wasted thermal energy to useful power. The engine and heat recovery system was demonstrated to achieve 50% Brake Thermal Efficiency while operating at a torque peak condition in second quarter, 2006. The 50% efficient engine system was capable of meeting 2010 emissions requirements through the application of NOx and particulate matter reduction techniques proven earlier in the program.

Nelson, Christopher

2009-01-08T23:59:59.000Z

193

Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst: Final Report, 24 February 2004 -- 23 February 2006  

DOE Green Energy (OSTI)

This report discusses the development of a E7G 12-liter, lean-burn natural gas engine--using stoichiometric combustion, cooled exhaust gas recirculation, and three-way catalyst technologies--for refuse haulers.

Reppert, T.; Chiu, J.

2005-09-01T23:59:59.000Z

194

Investigation Of The Ion Current Signal In Gen-Set Turbocharged Diesel Engine.  

E-Print Network (OSTI)

??Diesel powered generator sets have traditionally been and remain the number-one choice for standby and emergency power systems. As an established engine technology, diesel engines… (more)

Badawy, Tamer Hassan

2010-01-01T23:59:59.000Z

195

Numerical Simulation on Forced Swirl Combustion Chamber in Diesel Engine  

Science Conference Proceedings (OSTI)

A concept of forced swirl combustion chamber in diesel engine is proposed in this paper. It can be used to enhance the intensity of swirl flow in the cylinder and accelerate the rate of air-fuel mixture process by designing the special structure in the ... Keywords: diesel engine, forced swirl, combustion chamber, simulation

Yong Shang; Fu-shui Liu; Xiang-rong Li

2010-12-01T23:59:59.000Z

196

Numerical Simulation on Forced Swirl Combustion Chamber in Diesel Engine  

Science Conference Proceedings (OSTI)

A concept of forced swirl combustion chamber in diesel engine is proposed in this paper. It can be used to enhance the intensity of swirl flow in the cylinder and accelerate the rate of air-fuel mixture process by designing the special structure in the ... Keywords: diesel engine, forced swirl, combustion chamber, simulation

Shang Yong; Liu Fu-shui; Li Xiang-rong

2011-02-01T23:59:59.000Z

197

DEMONSTRATION OF POTENTIAL FOR SELECTIVE CATALYTIC REDUCTION AND DIESEL PARTICULATE FILTERS  

DOE Green Energy (OSTI)

This project addresses the potential for Selective Catalytic Reduction (SCR) devices (using urea as reductant) together with Diesel Particulate Filters (DPF) and low-pressure loop exhaust gas recirculation (EGR) to achieve future stringent emissions standards for heavy-duty engines powering Class 8 vehicles. Two emission control systems consisting of the three technologies (EGR, SCR, and DPF) were calibrated on a Caterpillar C-12 heavy-duty diesel engine. Results of these calibrations showed good promise in meeting the 2010 heavy-duty emission standards as set forth by the Environmental Protection Agency (EPA). These two emission control systems were developed to evaluate a series of fuels that have similar formulations except for their sulfur content. Additionally, one fuel, code-named BP15, was also evaluated. This fuel was prepared by processing straight-run distillate stocks through a commercial, single stage hydrotreater employing high activity catalyst at maximum severity. An additional goal of this program is to provide data for an on-going EPA technology review that evaluates progress toward meeting 2007/2010 emission standards. These emissions levels were to be achieved not only on the transient test cycles but in other modes of operation such as the steady-state Euro-III style emission test known as the OICA (Organisation Internationale des Compagnies d'Automobiles) or the ESC (European Stationary Cycle). Additionally, hydrocarbon and carbon monoxide emissions standards are to be met.

McGILL,R; KHAIR, M; SHARP, C

2003-08-24T23:59:59.000Z

198

Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks  

DOE Green Energy (OSTI)

The Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks program (DE-FC26-04NT42189), commonly referred to as the AES program, focused on areas that will primarily benefit fuel economy and improve heat rejection while driving over the road. The AES program objectives were to: (1) Analyze, design, build, and test a cooling system that provided a minimum of 10 percent greater heat rejection in the same frontal area with no increase in parasitic fan load. (2) Realize fuel savings with advanced power management and acceleration assist by utilizing an integrated starter/generator (ISG) and energy storage devices. (3) Quantify the effect of aerodynamic drag due to the frontal shape mandated by the area required for the cooling system. The program effort consisted of modeling and designing components for optimum fuel efficiency, completing fabrication of necessary components, integrating these components into the chassis test bed, completing controls programming, and performance testing the system both on a chassis dynamometer and on the road. Emission control measures for heavy-duty engines have resulted in increased engine heat loads, thus introducing added parasitic engine cooling loads. Truck electrification, in the form of thermal management, offers technological solutions to mitigate or even neutralize the effects of this trend. Thermal control offers opportunities to avoid increases in cooling system frontal area and forestall reduced fuel economy brought about by additional aerodynamic vehicle drag. This project explored such thermal concepts by installing a 2007 engine that is compliant with current regulations and bears additional heat rejection associated with meeting these regulations. This newer engine replaced the 2002 engine from a previous project that generated less heat rejection. Advanced power management, utilizing a continuously optimized and controlled power flow between electric components, can offer additional fuel economy benefits to the heavy-duty trucking industry. Control software for power management brings added value to the power distribution and energy storage architecture on board a truck with electric accessories and an ISG. The research team has built upon a previous truck electrification project, formally, 'Parasitic Energy Loss Reduction and Enabling Technologies for Class 7/8 Trucks', DE-FC04-2000AL6701, where the fundamental concept of electrically-driven accessories replacing belt/gear-driven accessories was demonstrated on a Kenworth T2000 truck chassis. The electrical accessories, shown in Figure 1, were controlled to provide 'flow on demand' variable-speed operation and reduced parasitic engine loads for increased fuel economy. These accessories also provided solutions for main engine idle reduction in long haul trucks. The components and systems of the current project have been integrated into the same Kenworth T2000 truck platform. Reducing parasitic engine loading by decoupling accessory loads from the engine and driving them electrically has been a central concept of this project. Belt or gear-driven engine accessories, such as water pump, air conditioning compressor, or air compressor, are necessarily tied to the engine speed dictated by the current vehicle operating conditions. These conventional accessory pumps are sized to provide adequate flow or pressure at low idle or peak torque speeds, resulting in excess flow or pressure at cruising or rated speeds. The excess flow is diverted through a pressure-minimizing device such as a relief valve thereby expending energy to drive unnecessary and inefficient pump operation. This inefficiency causes an increased parasitic load to the engine, which leads to a loss of usable output power and decreased fuel economy. Controlling variable-speed electric motors to provide only the required flow or pressure of a particular accessory system can yield significant increases in fuel economy for a commercial vehicle. Motor loads at relatively high power levels (1-5 kW, or higher) can be efficiently provided

Larry Slone; Jeffrey Birkel

2007-10-31T23:59:59.000Z

199

Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks  

Science Conference Proceedings (OSTI)

The Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks program (DE-FC26-04NT42189), commonly referred to as the AES program, focused on areas that will primarily benefit fuel economy and improve heat rejection while driving over the road. The AES program objectives were to: (1) Analyze, design, build, and test a cooling system that provided a minimum of 10 percent greater heat rejection in the same frontal area with no increase in parasitic fan load. (2) Realize fuel savings with advanced power management and acceleration assist by utilizing an integrated starter/generator (ISG) and energy storage devices. (3) Quantify the effect of aerodynamic drag due to the frontal shape mandated by the area required for the cooling system. The program effort consisted of modeling and designing components for optimum fuel efficiency, completing fabrication of necessary components, integrating these components into the chassis test bed, completing controls programming, and performance testing the system both on a chassis dynamometer and on the road. Emission control measures for heavy-duty engines have resulted in increased engine heat loads, thus introducing added parasitic engine cooling loads. Truck electrification, in the form of thermal management, offers technological solutions to mitigate or even neutralize the effects of this trend. Thermal control offers opportunities to avoid increases in cooling system frontal area and forestall reduced fuel economy brought about by additional aerodynamic vehicle drag. This project explored such thermal concepts by installing a 2007 engine that is compliant with current regulations and bears additional heat rejection associated with meeting these regulations. This newer engine replaced the 2002 engine from a previous project that generated less heat rejection. Advanced power management, utilizing a continuously optimized and controlled power flow between electric components, can offer additional fuel economy benefits to the heavy-duty trucking industry. Control software for power management brings added value to the power distribution and energy storage architecture on board a truck with electric accessories and an ISG. The research team has built upon a previous truck electrification project, formally, 'Parasitic Energy Loss Reduction and Enabling Technologies for Class 7/8 Trucks', DE-FC04-2000AL6701, where the fundamental concept of electrically-driven accessories replacing belt/gear-driven accessories was demonstrated on a Kenworth T2000 truck chassis. The electrical accessories, shown in Figure 1, were controlled to provide 'flow on demand' variable-speed operation and reduced parasitic engine loads for increased fuel economy. These accessories also provided solutions for main engine idle reduction in long haul trucks. The components and systems of the current project have been integrated into the same Kenworth T2000 truck platform. Reducing parasitic engine loading by decoupling accessory loads from the engine and driving them electrically has been a central concept of this project. Belt or gear-driven engine accessories, such as water pump, air conditioning compressor, or air compressor, are necessarily tied to the engine speed dictated by the current vehicle operating conditions. These conventional accessory pumps are sized to provide adequate flow or pressure at low idle or peak torque speeds, resulting in excess flow or pressure at cruising or rated speeds. The excess flow is diverted through a pressure-minimizing device such as a relief valve thereby expending energy to drive unnecessary and inefficient pump operation. This inefficiency causes an increased parasitic load to the engine, which leads to a loss of usable output power and decreased fuel economy. Controlling variable-speed electric motors to provide only the required flow or pressure of a particular accessory system can yield significant increases in fuel economy for a commercial vehicle. Motor loads at relatively high power levels (1-5 kW, or higher) can be efficiently provided

Larry Slone; Jeffrey Birkel

2007-10-31T23:59:59.000Z

200

Feature - Air Force Fellows helping work toward smarter diesel engines  

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

Air Force Fellows helping work toward smarter diesel engines Air Force Fellows helping work toward smarter diesel engines Air Force Fellows Clint Abell (left) and Jeff Gillen work on Smarter Diesel Engine (SDE) 21. The project involves using ion sensors to help the engine run at maximum efficiency. Air Force Fellows Clint Abell (left) and Jeff Gillen work on Smarter Diesel Engine (SDE) 21. The project involves using ion sensors to help the engine run at maximum efficiency. (Photo by Wes Agresta) One of the three core values of the Air Force is "excellence in all we do." So it should be no surprise that there are currently two Air Force officers here at Argonne studying ways to improve the efficiency of military vehicles. Lieutenant Colonel Jeff Gillen and Major Clint Abell are the fourth set of Air Force Fellows to spend time at Argonne, but the first to be stationed

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Examinatal Study on Common Rail Diesel Engine for Multi-injection Strategies  

Science Conference Proceedings (OSTI)

Based on diesel engine equipped with common rail, the multi-injection strategies common rail diesel engine test bed is established with NI test system. In this test bed, the influences of optimized multi-injection strategies to diesel engine performances ... Keywords: common rail, diesel engine, multi-injection, emission

An Shijie; Chang Hanbao; Xu Hongjun

2010-05-01T23:59:59.000Z

202

Overview of Engine Combustion Research at Sandia National Laboratories  

DOE Green Energy (OSTI)

The objectives of this paper are to describe the ongoing projects in diesel engine combustion research at Sandia National Laboratories' Combustion Research Facility and to detail recent experimental results. The approach we are employing is to assemble experimental hardware that mimic realistic engine geometries while enabling optical access. For example, we are using multi-cylinder engine heads or one-cylinder versions of production heads mated to one-cylinder engine blocks. Optical access is then obtained through a periscope in an exhaust valve, quartz windows in the piston crown, windows in spacer plates just below the head, or quartz cylinder liners. We have three diesel engine experiments supported by the Department of Energy, Office of Heavy Vehicle Technologies: a one-cylinder version of a Cummins heavy-duty engine, a diesel simulation facility, and a one-cylinder Caterpillar engine to evaluate combustion of alternative diesel fuels.

Robert W. Carling; Gurpreet Singh

1999-04-26T23:59:59.000Z

203

Soot and liquid-phase fuel distributions in a newly designed optically accessible D.I. diesel engine  

DOE Green Energy (OSTI)

Two-dimensional (2-D) laser-sheet imaging has been used to examine the soot and liquid-phase fuel distributions in a newly designed, optically accessible, direct-injection Diesel engine of the heavy-duty size class. The design of this engine preserves the intake port geometry and basic dimensions of a Cummins N-series production engine. It also includes several unique features to provide considerable optical access. Liquid-phase fuel and soot distribution studies were conducted at a medium speed (1,200 rpm) using a Cummins closed-nozzle fuel injector. The scattering was used to obtain planar images of the liquid-phase fuel distribution. These images show that the leading edge of the liquid-phase portion of the fuel jet reaches a maximum length of 24 mm, which is about half the combustion bowl radius for this engine. Beyond this point virtually all the fuel has vaporized. Soot distribution measurements were made at a high load condition using three imaging diagnostics: natural flame luminosity, 2-D laser-induced incandescence, and 2-D elastic scattering. This investigation showed that the soot distribution in the combusting fuel jet develops through three stages. First, just after the onset of luminous combustion, soot particles are small and nearly uniformly distributed throughout the luminous region of the fuel jet. Second, after about 2 crank angle degrees a pattern develops of a higher soot concentration of larger sized particles in the head vortex region of the jet and a lower soot concentration of smaller sized particles upstream toward the injector. Third, after fuel injection ends, both the soot concentration and soot particle size increase rapidly in the upstream portion of the fuel jet.

Dec, J.E. [Sandia National Labs., Livermore, CA (United States); Espey, C. [Pennsylvania State Univ., University Park, PA (United States)

1993-10-01T23:59:59.000Z

204

Nano Catalysts for Diesel Engine Emission Remediation  

DOE Green Energy (OSTI)

The objective of this project was to develop durable zeolite nanocatalysts with broader operating temperature windows to treat diesel engine emissions to enable diesel engine based equipment and vehicles to meet future regulatory requirements. A second objective was to improve hydrothermal durability of zeolite catalysts to at least 675 C. The results presented in this report show that we have successfully achieved both objectives. Since it is accepted that the first step in NO{sub x} conversion under SCR (selective catalytic reduction) conditions involves NO oxidation to NO{sub 2}, we reasoned that catalyst modification that can enhance NO oxidation at low-temperatures should facilitate NO{sub x} reduction at low temperatures. Considering that Cu-ZSM-5 is a more efficient catalyst than Fe-ZSM-5 at low-temperature, we chose to modify Cu-ZSM-5. It is important to point out that the poor low-temperature efficiency of Fe-ZSM-5 has been shown to be due to selective absorption of NH{sub 3} at low-temperatures rather than poor NO oxidation activity. In view of this, we also reasoned that an increased electron density on copper in Cu-ZSM-5 would inhibit any bonding with NH{sub 3} at low-temperatures. In addition to modified Cu-ZSM-5, we synthesized a series of new heterobimetallic zeolites, by incorporating a secondary metal cation M (Sc{sup 3+}, Fe{sup 3+}, In{sup 3+}, and La{sup 3+}) in Cu exchanged ZSM-5, zeolite-beta, and SSZ-13 zeolites under carefully controlled experimental conditions. Characterization by diffuse-reflectance ultra-violet-visible spectroscopy (UV-Vis), X-ray powder diffraction (XRD), extended X-ray absorption fine structure spectroscopy (EXAFS) and electron paramagnetic resonance spectroscopy (EPR) does not permit conclusive structural determination but supports the proposal that M{sup 3+} has been incorporated in the vicinity of Cu(II). The protocols for degreening catalysts, testing under various operating conditions, and accelerated aging conditions were provided by our collaborators at John Deere Power Systems. Among various zeolites reported here, CuFe-SSZ-13 offers the best NO{sub x} conversion activity in 150-650 C range and is hydrothermally stable when tested under accelerated aging conditions. It is important to note that Cu-SSZ-13 is now a commercial catalyst for NO{sub x} treatment on diesel passenger vehicles. Thus, our catalyst performs better than the commercial catalyst under fast SCR conditions. We initially focused on fast SCR tests to enable us to screen catalysts rapidly. Only the catalysts that exhibit high NO{sub x} conversion at low temperatures are selected for screening under varying NO{sub 2}:NO{sub x} ratio. The detailed tests of CuFe-SSZ-13 show that CuFe-SSZ-13 is more effective than commercial Cu-SSZ-13 even at NO{sub 2}:NO{sub x} ratio of 0.1. The mechanistic studies, employing stop-flow diffuse reflectance FTIR spectroscopy (DRIFTS), suggest that high concentration of NO{sup +}, generated by heterobimetallic zeolites, is probably responsible for their superior low temperature NO{sub x} activity. The results described in this report clearly show that we have successfully completed the first step in a new emission treatment catalyst which is synthesis and laboratory testing employing simulated exhaust. The next step in the catalyst development is engine testing. Efforts are in progress to obtain follow-on funding to carry out scale-up and engine testing to facilitate commercialization of this technology.

Narula, Chaitanya Kumar [ORNL; Yang, Xiaofan [ORNL; Debusk, Melanie Moses [ORNL; Mullins, David R [ORNL; Mahurin, Shannon Mark [ORNL; Wu, Zili [ORNL

2012-06-01T23:59:59.000Z

205

Improving supply chain responsiveness for diesel engine remanufacturing  

E-Print Network (OSTI)

Achieving a significant reduction in order-to-shipment lead-time of remanufactured diesel engines can dramatically decrease the amount of finished goods inventory that Caterpillar needs to carry in order to meet its delivery ...

Méndez de la Luz, Diego A., 1979-

2011-01-01T23:59:59.000Z

206

Performance Characterization of a Medium-Duty Diesel Engine with Bio-Diesel and Petroleum Diesel Fuels  

E-Print Network (OSTI)

In the wake of global warming and fossil fuel depletion, renewed attention has been paid to shifting away from the use of petroleum based fuels. The world?s energy demand is commencing its dependency on alternative fuels. Such alternative fuels in use today consist of bio-alcohols (such as ethanol), hydrogen, biomass, and natural oil/fat derived fuels. However, in this study, the focus will be on the alternative fuel derived from natural oils and fats, namely biodiesel. The following study characterizes the performance of a medium-duty diesel engine fuelled with biodiesel and conventional diesel. The objective is accomplished by taking measurements of manifold pressure and temperature, fuel flow, air flow, and torque. The study first characterizes a John Deere 4.5 liter 4 cylinder direct injection engine with exhaust gas recirculation (EGR), common rail fuel injection, and variable turbo-charging with conventional petroleum diesel to set a reference for comparison. The study then proceeds to characterize the differences in engine performance as a result of using biodiesel relative to conventional diesel. The results show that torque decreases with the use of biodiesel by about 10%. The evaluation of engine performance parameters shows that torque is decreased because of the lower heating value of biodiesel compared to conventional diesel. The insignificant difference between the other performance parameters shows that the ECM demands the same performance of the engine regardless of the fuel being combusted by the engine.

Esquivel, Jason

2008-12-01T23:59:59.000Z

207

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Freightliner - Business Class M2 112 Applications: Tractor, Vocational truck Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISL G 8.9L...

208

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

114SD Application: Vocational truck Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISL G 8.9L Cummins Westport - ISX12 G...

209

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

- W900S Freightliner - Cascadia 113 NG Kenworth - T660 Tractor Kenworth - T800 Short Hood Volvo - VNL Daycab Cummins Westport - ISX12 G Fuel Types: CNG, LNG Displacement: 11.9...

210

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Freightliner - Cascadia 113 NG Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISX12 G...

211

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

T800 Short Hood Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISX12 G Additional Description: Can be configured to accomplish a variety of...

212

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

20 G Application: Refuse hauler Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISL G 8.9L...

213

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

CrosswindEaglePelican Applications: Street sweeper, Vocational truck Fuel Types: CNG, LNG, Propane Power Source(s): Cummins Westport - ISL G 8.9L Ford Motor Co. - 2.5L Propane...

214

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Kenworth - W900S Application: Vocational truck Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISX12 G...

215

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Cargotec - Ottawa 4x2 Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISL G 8.9L...

216

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Volvo - VNL Daycab Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISX12 G Volvo - D12-LNG...

217

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Peterbilt Motors - 384 Application: Tractor Fuel Types: CNG, LNG Maximum Seating: 2 Power Source(s): Cummins Westport - ISL G 8.9L...

218

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

ElDorado National - XHF Application: Bus - Transit Fuel Types: CNG, LNG Maximum Seating: 39 Power Source(s): Cummins Westport - ISL G 8.9L...

219

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Elgin Sweeper Company - Broom BearCrosswindEaglePelican General Motors - 3.0L Fuel Type: CNG Displacement: 3...

220

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heil Environmental - RapidRail Application: Refuse hauler Fuel Type: CNG Maximum Seating: 3 Power Source(s): Cummins Westport - ISL G 8.9L...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

T440 Tractor Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISL G 8.9L Additional Description: Can be a Class 7 or a Class 8 truck...

222

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Volvo - VNM Daycab Application: Tractor Fuel Type: CNG Power Source(s): Cummins Westport - ISL G 8.9L...

223

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Kenworth - T470 Tractor Application: Tractor Fuel Types: CNG, LNG Power Source(s): Cummins Westport - ISL G 8.9L Additional Description: Can be a Class 7 or a Class 8 truck...

224

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Maintenance Driving Behavior Fleet Rightsizing System Efficiency Locate Stations Search by Location Map a Route Laws & Incentives Search Federal State Key Legislation Data &...

225

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Elgin Sweeper Company - Broom BearCrosswindEaglePelican Ford Motor Co. - 2.5L Propane Fuel Type: Propane Displacement: 2.5 liters...

226

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Transit Connect Application: Van Fuel Types: CNG, Propane Power Source(s): Ford Motor Co. - 2.0L I-4 Additional Description: CNG and propane models are available from contract...

227

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Thomas Built Buses - Minotour Propane Application: Bus - School Fuel Type: Propane Maximum Seating: 30 Power Source(s): General Motors - 6.0L V8 - CleanFUEL USA liquid propane...

228

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Turtle Top - Van Terra Application: Bus - Shuttle Fuel Types: CNG, Propane Maximum Seating: 15 Power Source(s): Ford Motor Co. - 6.8L V-10 Additional Description: Turtle Top...

229

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Collins Bus Corp. - NexBus Propane Thomas Built Buses - Minotour Propane General Motors - 6.0L V8 - CleanFUEL USA liquid propane injection (LPI) system Fuel Type: Propane...

230

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Collins Bus Corp. - NexBus Propane Application: Bus - School Fuel Type: Propane Maximum Seating: 30 Power Source(s): General Motors - 6.0L V8 - CleanFUEL USA liquid propane...

231

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ford Motor Co. - E-Series Cargo VanWagon Application: Van Fuel Types: CNG, Propane Power Source(s): Ford Motor Co. - 6.8L V-10 Ford Motor Co. - 5.4L V-8 Additional Description:...

232

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Capacity Trucks - TJ5000TJ7000 General Motors - 8.0L V8 Fuel Type: Propane Displacement: 8.0 liters...

233

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Capacity Trucks - TJ5000TJ7000 Application: Tractor Fuel Type: Propane Power Source(s): Ford Motor Co. - 6.8L V-10 General Motors - 8.0L V8...

234

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Balqon - XE-20 Balqon - 200-hp, 230V, AC induction motor with 215kWh, 312V, lithium-ion batteries...

235

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

ElDorado National - Axess Ebus - EBUS22FC New Flyer - Xcelsior Ballard Power Systems - FCvelocity-HD6 fuel cell...

236

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

XE-30 Application: Tractor Fuel Type: Electricity Power Source(s): Balqon - 200-hp, 230V, AC induction motor with 215kWh, 600V, lithium...

237

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

ElDorado National - E-Z Rider II BRT Thomas Built Buses - Saf-T-Liner C2e Hybrid Freightliner - M2 106 Hybrid Nova Bus - LFS Artic HEV Nova Bus - LFS HEV Nova Bus - LFX Cummins -...

238

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

DesignLine Corp. - Eco-Smart 1 Application: Bus - Transit Fuel Type: Electricity Maximum Seating: 28 Power Source(s): Bosch Rexroth - Two 120kW induction motors Additional...

239

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Champion Bus Inc. - Defender Azure Dynamics - Balance Parallel Hybrid Drive Fuel Type: Hybrid - Gasoline...

240

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Balqon - XE-30 Balqon - 200-hp, 230V, AC induction motor with 215kWh, 600V, lithium-ion batteries...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Champion Bus Inc. - Defender Application: Bus - Shuttle Fuel Type: Hybrid - Gasoline Electric Hybrid System(s): Azure Dynamics - Balance Parallel Hybrid Drive Additional...

242

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Electric Vehicles International - EVI-MD Application: Vocational truck Fuel Type: Electricity Power Source(s): Electric Vehicles International - 260-hp AC permanent magnet motor...

243

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Mule M150 Application: Vocational truck Fuel Type: Electricity Power Source(s): Balqon - 200-hp AC induction motor with lithium...

244

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Goshen Coach - GCIIG-Force Turtle Top - Terra Transport General Motors - ExpressSavana cutaway van General Motors - ExpressSavana cargo van Greenkraft - 1061 General Motors -...

245

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

StarTrans - Senator Application: Bus - Shuttle Fuel Type: CNG Maximum Seating: 17 Power Source(s): Ford Motor Co. - 6.8L V-10 Ford Motor Co. - 5.4L V-8 Additional Description: May...

246

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Odyssey XL Application: Bus - Shuttle Fuel Types: CNG, Propane Maximum Seating: 41 Power Source(s): Ford Motor Co. - 6.8L V-10 Additional Description: Available as a Ford F-550...

247

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Cutaway and Stripped Chassis Application: Vocational truck Fuel Types: CNG, Propane, Ethanol Power Source(s): Ford Motor Co. - 6.8L V-10 Ford Motor Co. - 5.4L V-8 Additional...

248

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Enova Systems - Enova Ze step van Application: Van Fuel Type: Electricity Power Source(s): Enova Systems - 120kW all-electric drive system Additional Description: Built on a...

249

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

North American Bus Industries - 60BRT North American Bus Industries - 31LFW 35LFW 40LFW ElDorado National - Axess Motor Coach Industries - D4500 CT Hybrid Commuter Coach...

250

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ebus - EBUS22FC Application: Bus - Shuttle Fuel Types: Hydrogen, Hybrid - Gasoline Electric Maximum Seating: 22 Power Source(s): Capstone Turbine Corp. - C30 (30kW) Micro Turbine...

251

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Electric Vehicles International - EVI-MD Electric Vehicles International - 260-hp AC permanent magnet motor with...

252

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Compatible Vehicles: StarTrans - Senator Turtle Top - Odyssey XL Turtle Top - Odyssey Goshen Coach - GCIIG-Force Turtle Top - Van Terra Capacity Trucks - TJ5000TJ7000 Ford Motor...

253

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Thomas Built Buses - Saf-T-Liner HDX CNG Application: Bus - School Fuel Type: CNG Maximum Seating: 90 Power Source(s): Cummins Westport - ISL G 8.9L...

254

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Trans Tech - ETrans Smith Electric Vehicles - 120kW induction motor with lithium-ion batteries Fuel Type: Electricity...

255

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Front Load (Contender, Atlantic, Low-Profile) Application: Refuse hauler Fuel Type: CNG Maximum Seating: 2...

256

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Boulder Electric Vehicle - DV-500 Delivery Truck Application: Van Fuel Type: Electricity Power Source(s): Boulder Electric Vehicle - AC brushless induction motor with lithium-ion...

257

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Boulder Electric Vehicle - DV-500 Delivery Truck Boulder Electric Vehicle - AC brushless induction motor with lithium-ion batteries Fuel Type: Electricity...

258

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Odyssey Application: Bus - Shuttle Fuel Types: CNG, Propane Maximum Seating: 24 Power Source(s): Ford Motor Co. - 6.8L V-10 Additional Description: Available as Chevrolet G4500 or...

259

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Goshen Coach - GCIIG-Force Application: Bus - Shuttle Fuel Types: CNG, Propane Maximum Seating: 33 Power Source(s): General Motors - 6.0L V-8 Ford Motor Co. - 6.8L V-10 Additional...

260

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Van Hool - A300L Fuel Cel Application: Bus - Transit Fuel Type: Hydrogen Maximum Seating: 28 Power Source(s): UTC Power - PureMotion Model 120 Fuel Cell System...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

StarTrans - Senator Ford Motor Co. - E-Series Cutaway and Stripped Chassis Ford Motor Co. - E-Series Cargo VanWagon Ford Motor Co. - 5.4L V-8 Fuel Types: CNG, Propane, Ethanol...

262

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ford Motor Co. - Transit Connect Ford Motor Co. - 2.0L I-4 Fuel Types: CNG, Propane Displacement: 2.0 liters...

263

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Vision Motor Corp. - Tyrano Application: Tractor Fuel Type: Hydrogen Power Source(s): Vision Motor Corp. - 65kW Hydrogen Fuel Cell Hybrid System(s): Eaton - Hybrid Drive System...

264

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Proterra - EcoRide BE35 Application: Bus - Transit Fuel Type: Electricity Maximum Seating: 35 Power Source(s): UQM - PowerPhase 150kW permanent magnet motor Hybrid System(s):...

265

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Trans Tech - ETrans Application: Bus - School Fuel Type: Electricity Maximum Seating: 52 Power Source(s): Smith Electric Vehicles - 120kW induction motor with lithium-ion...

266

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Balqon - XE-20 Application: Tractor Fuel Type: Electricity Power Source(s): Balqon - 200-hp, 230V, AC induction motor with 215kWh, 312V, lithium-ion batteries...

267

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

31LFW 35LFW 40LFW Motor Coach Industries - D4500 CT Hybrid Commuter Coach North American Bus Industries - 42BRT Nova Bus - LFX Allison Transmission - Allison H 5...

268

Study of Oil Degradation in Extended Idle Operation Heavy Duty Vehicles  

E-Print Network (OSTI)

Advances in engine oil technology and increased combustion efficiency has resulted in the longer oil intervals in vehicles. Current oil change interval practice only takes into account the mileage a vehicle has driven and does not consider other vehicle operations that affect oil life like extended idle. Routine oil sampling is one way to ensure optimal oil intervals, but the price continuous analysis can be prohibitive. It is possible to use on board diagnostic (OBD) data to correlate oil degradation to engine usage in order to develop an algorithm that is applicable to many vehicles. While much research has been conducted for light duty vehicles, little has been completed for heavy duty vehicles, in particular vehicles that idle a majority of their time. This study uses multiple heavy duty vehicles that are monitored by monthly routine oil analysis and logging of on board diagnostic data to determine the effects extended idle has on the wear rate of oil. The vehicles were used in their normal operation; this resulted in an average idle run time of 60% of run time and no less than 50% in a single vehicle. At each sample the quality of the oil and the operation of the engines were assessed. The results of the oil analysis showed very little degradation of oil. As expected, a negative correlation was seen in viscosity and total base number (TBN) but not abnormal when compared to base oil. Significant degradation was not seen even after using the vehicle passed the manufacturer recommended oil intervals. Analysis of engine operation showed that the temperature of the oil was optimal for 85% of idle operation. In addition, oil pressures at idle were sufficiently higher than the minimum pressure recommended by the manufacturer, but was less than half of the average in use oil pressure. The combination of low pressure and optimal temperature has resulted in little oil degradation. The results from the study have shown that extended idling in the study vehicles can be treated similar to long trip interval service for oil degradation. Additionally, extended idling did not result in abnormal engine wear or excessive contamination.

Kader, Michael Kirk

2013-05-01T23:59:59.000Z

269

NREL: ReFUEL Laboratory - Engine Dynamometer Test Cells  

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

Engine Dynamometer Test Cells Engine Dynamometer Test Cells The ReFUEL Laboratory features two engine dynamometer test cells-one for heavy-duty engines and another for light-duty engines. Heavy-Duty Engine Dynamometer Test Cell Capabilities Photo of heavy-duty engine dynamometer test cell in laboratory setting. Heavy-duty engines are certified as meeting emission regulations by the manufacturer using an engine dynamometer. These protocols, known as the Heavy-Duty Federal Test Procedures (HD-FTP), are highly standardized, and results can be readily compared between laboratories. Because the heavy-duty engine dynamometer test cell performs the HD-FTP on engines up to 600 hp, advanced fuels can be evaluated in a way that is meaningful to the engine-research community. In addition to testing a wide

270

Emissions Benefits From Renewable Fuels and Other Alternatives for Heavy-Duty Vehicles  

E-Print Network (OSTI)

43 McCormick, 2005 (Canola-1) McCormick,2005 (Soy-1)A: Animal-based; C: Canola; S: Soy-based; H-D: Heavy-Duty H-

Hajbabaei, Maryam

2013-01-01T23:59:59.000Z

271

Heavy-duty truck population, activity and usage patterns. Final report  

SciTech Connect

The objective of the study was to update the heavy-duty truck (HDT) population, activity (e.g., vehicle miles traveled (VMT), numbers of starts and trips, trip duration, etc.), and usage patterns type of service/business (e.g., delivery, construction, etc.), area of operation (i.e., local, short-haul, long-haul) for HDT`s registered and/or operated in California. The population and activity estimates were done on a weight-class-specific basis light-heavy-duty, medium-heavy-duty and heavy-heavy-duty. Population, activity and usage estimates were based primarily on Department of Motor Vehicles (DMV) registration data and Truck Inventory and Usage Survey (TIUS) data. In addition to the analysis of existing data (i.e., DMV and TIUS), 42 HDTs were fitted with on-board data loggers that recorded numbers of trips and starts, daily VMT and travel by time-of-day.

Fischer, M.

1998-07-01T23:59:59.000Z

272

Utilization of Fuel Consumption Data in an Ecodriving Incentive System for Heavy-Duty Vehicle Drivers  

Science Conference Proceedings (OSTI)

Driver behavior is one of the greatest factors determining fuel consumption and, thus, carbon dioxide emissions from a heavy-duty vehicle. The difference in fuel consumption can be up to 30%, depending on the driver. Education, monitoring, and feedback ...

Heikki Liimatainen

2011-12-01T23:59:59.000Z

273

Design of an instrumented multifunctional foot for application to a heavy duty mobile robot manufacturing system  

E-Print Network (OSTI)

The design of a multifunctional foot for application to a mobile robotic system for heavy duty manufacturing is presented. The requirements for a target manufacturing task are presented and translated into requirements for ...

Menon, Manas Chandran

2008-01-01T23:59:59.000Z

274

Design Evolution, Durability and Reliability of Alstom Heavy-Duty Gas Turbines: Pedigree Matrices, Volume 5  

Science Conference Proceedings (OSTI)

Advanced technology heavy-duty gas turbines carry a degree of technical risk because of new technologies used in their design. This report reviews the design evolution of specific Alstom (formerly ABB) industrial gas turbines in a standard format, which allows a qualitative and quantitative assessment of the technical risks involved in their operation. The report establishes a pedigree matrix, or qualitative analysis, for standard production and newly introduced heavy-duty gas turbines, including ...

2013-12-19T23:59:59.000Z

275

Design Evolution, Durability, and Reliability of Alstom Heavy-Duty Combustion Turbines: Pedigree Matrices, Volume 5  

Science Conference Proceedings (OSTI)

Advanced technology heavy-duty combustion turbines carry a degree of technical risk because of new technologies used in their design. This report reviews the design evolution of specific Alstom (formerly ABB) industrial combustion turbines in a standard format, which allows a qualitative and quantitative assessment of the technical risks involved in their operation. The report establishes a pedigree matrix, or qualitative analysis, for standard production and newly introduced heavy-duty combustion turbin...

2011-12-28T23:59:59.000Z

276

Mixing and flame structures inferred from OH-PLIF for conventional and low-temperature diesel engine combustion  

SciTech Connect

The structure of first- and second-stage combustion is investigated in a heavy-duty, single-cylinder optical engine using chemiluminescence imaging, Mie-scatter imaging of liquid-fuel, and OH planar laser-induced fluorescence (OH-PLIF) along with calculations of fluorescence quenching. Three different diesel combustion modes are studied: conventional non-diluted high-temperature combustion (HTC) with either (1) short or (2) long ignition delay, and (3) highly diluted low-temperature combustion (LTC) with early fuel injection. For the short ignition delay HTC condition, the OH fluorescence images show that second-stage combustion occurs mainly on the fuel jet periphery in a thickness of about 1 mm. For the long ignition delay HTC condition, the second-stage combustion zone on the jet periphery is thicker (5-6 mm). For the early-injection LTC condition, the second-stage combustion is even thicker (20-25 mm) and occurs only in the down-stream regions of the jet. The relationship between OH concentration and OH-PLIF intensity over a range of equivalence ratios is estimated from quenching calculations using collider species concentrations predicted by chemical kinetics simulations of combustion. The calculations show that both OH concentration and OH-PLIF intensity peak near stoichiometric mixtures and fall by an order of magnitude or more for equivalence ratios less than 0.2-0.4 and greater than 1.4-1.6. Using the OH fluorescence quenching predictions together with OH-PLIF images, quantitative boundaries for mixing are established for the three engine combustion modes. (author)

Singh, Satbir [General Motors Research and Development, Warren, MI 48090 (United States); Musculus, Mark P.B. [Sandia National Laboratories, Livermore, CA 94551 (United States); Reitz, Rolf D. [Department of Mechanical Engineering, University of Wisconsin, Madison, WI 53706 (United States)

2009-10-15T23:59:59.000Z

277

Vehicle Technologies Office: 2009 Directions in Engine-Efficiency...  

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

of the Engine Combustion Network Lyle Pickett Sandia National Laboratories Advanced Natural Gas Engine Technology for Heavy Duty Vehicles Mostafa Kamel Cummins Westport Inc....

278

Demand, Supply, and Price Outlook for Low-Sulfur Diesel Fuel  

Gasoline and Diesel Fuel Update (EIA)

To help ensure that sulfates in engine exhaust do not To help ensure that sulfates in engine exhaust do not prevent manufacturers of heavy-duty diesel engines from meeting new particulate emissions standards for 1994 and later model years, 1 the Clean Air Act Amend- ments of 1990 (CAAA90) require refiners to reduce the sulfur content of on-highway diesel fuel from current average levels of 0.30 percent by weight to no more than 0.05 percent by weight. The new standard, which goes into effect October 1, 1993, also requires that on-highway diesel fuel have a minimum cetane index of 40 or a maximum aromatic content of 35 percent by volume. 2 (See list of terms and definitions on the fol- lowing page.) This provision is designed to prevent any future rises in aromatics levels. 3 Since the direct mea- surement of aromatics is complex, a minimum cetane

279

JET BREAKUP AND SPRAY FORMATION IN A DIESEL ENGINE.  

DOE Green Energy (OSTI)

The breakup of injected fuel into spray is of key interest to the design of a fuel efficient, nonpolluting diesel engine. We report preliminary progress on the numerical simulation of diesel fuel injection spray with the front tracking code FronTier. Our simulation design is set to match experiments at ANL, and our present agreement is semi-quantitative. Future efforts will include mesh refinement studies, which will better model the turbulent flow.

GLIMM,J.; LI,X.; KIM,M.N.; OH,W.; MARCHESE,A.; SAMULYAK,R.; TZANOS,C.

2003-06-17T23:59:59.000Z

280

Novel injector techniques for coal-fueled diesel engines  

DOE Green Energy (OSTI)

This report, entitled Novel Injector Techniques for Coal-Fueled Diesel Engines,'' describes the progress and findings of a research program aimed at development of a dry coal powder fuel injector in conjunction with the Thermal Ignition Combustion System (TICS) concept to achieve autoignition of dry powdered coal in a single-cylinder high speed diesel engine. The basic program consisted of concept selection, analysis and design, bench testing and single cylinder engine testing. The coal injector concept which was selected was a one moving part dry-coal-powder injector utilizing air blast injection. Adiabatics has had previous experience running high speed diesel engines on both direct injected directed coal-water-slurry (CWS) fuel and also with dry coal powder aspirated into the intake air. The Thermal Ignition Combustion System successfully ignited these fuels at all speeds and loads without requiring auxiliary ignition energy such as pilot diesel fuel, heated intake air or glow or spark plugs. Based upon this prior experience, it was shown that the highest efficiency and fastest combustion was with the dry coal, but that the use of aspiration of coal resulted in excessive coal migration into the engine lubrication system. Based upon a desire of DOE to utilize a more modern test engine, the previous naturally-aspirated Caterpillar model 1Y73 single cylinder engine was replaced with a turbocharged (by use of shop air compressor and back pressure control valve) single cylinder version of the Cummins model 855 engine.

Badgley, P.R.

1992-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Coal-fueled diesel engines for locomotive applications  

DOE Green Energy (OSTI)

GE Transportation Systems (GE/TS) completed a two and one half year study into the economic viability of a coal fueled locomotive. The coal fueled diesel engine was deemed to be one of the most attractive options. Building on the BN-NS study, a proposal was submitted to DOE to continue researching economic and technical feasibility of a coal fueled diesel engine for locomotives. The contract DE-AC21-85MC22181 was awarded to GE Corporate Research and Development (GE/CRD) for a three year program that began in March 1985. This program included an economic assessment and a technical feasibility study. The economic assessment study examined seven areas and their economic impact on the use of coal fueled diesels. These areas included impact on railroad infrastructure, expected maintenance cost, environmental considerations, impact of higher capital costs, railroad training and crew costs, beneficiated coal costs for viable economics, and future cost of money. The results of the study indicated the merits for development of a coal-water slurry (CWS) fueled diesel engine. The technical feasibility study examined the combustion of CWS through lab and bench scale experiments. The major accomplishments from this study have been the development of CWS injection hardware, the successful testing of CWS fuel in a full size, single cylinder, medium speed diesel engine, evaluation of full scale engine wear rates with metal and ceramic components, and the characterization of gaseous and particulate emissions.

Hsu, B.D.; Najewicz, D.J.; Cook, C.S.

1993-11-01T23:59:59.000Z

282

Series 50 propane-fueled Nova bus: Engine development, installation, and field trials  

SciTech Connect

The report describes a project to develop the Detroit Diesel series 50 liquefied propane gas (LPG) heavy-duty engine and to conduct demonstrations of LPG-fuelled buses at selected sites (Halifax Regional Municipality and three sites in the United States). The project included five main elements: Engine development and certification, chassis re-engineering and engine installation, field demonstration, LPG fuel testing, and LPG fuel variability testing. Lessons learned with regard to engine design and other issues are discussed, and recommendations are made for further development and testing.

Smith, B.

1999-01-01T23:59:59.000Z

283

Capture of Heat Energy from Diesel Engine Exhaust  

DOE Green Energy (OSTI)

Diesel generators produce waste heat as well as electrical power. About one-third of the fuel energy is released from the exhaust manifolds of the diesel engines and normally is not captured for useful applications. This project studied different waste heat applications that may effectively use the heat released from exhaust of Alaskan village diesel generators, selected the most desirable application, designed and fabricated a prototype for performance measurements, and evaluated the feasibility and economic impact of the selected application. Exhaust flow rate, composition, and temperature may affect the heat recovery system design and the amount of heat that is recoverable. In comparison with the other two parameters, the effect of exhaust composition may be less important due to the large air/fuel ratio for diesel engines. This project also compared heat content and qualities (i.e., temperatures) of exhaust for three types of fuel: conventional diesel, a synthetic diesel, and conventional diesel with a small amount of hydrogen. Another task of this project was the development of a computer-aided design tool for the economic analysis of selected exhaust heat recovery applications to any Alaskan village diesel generator set. The exhaust heat recovery application selected from this study was for heating. An exhaust heat recovery system was fabricated, and 350 hours of testing was conducted. Based on testing data, the exhaust heat recovery heating system showed insignificant effects on engine performance and maintenance requirements. From measurements, it was determined that the amount of heat recovered from the system was about 50% of the heat energy contained in the exhaust (heat contained in exhaust was evaluated based on environment temperature). The estimated payback time for 100% use of recovered heat would be less than 3 years at a fuel price of $3.50 per gallon, an interest rate of 10%, and an engine operation of 8 hours per day. Based on experimental data, the synthetic fuel contained slightly less heat energy and fewer emissions. Test results obtained from adding different levels of a small amount of hydrogen into the intake manifold of a diesel-operated engine showed no effect on exhaust heat content. In other words, both synthetic fuel and conventional diesel with a small amount of hydrogen may not have a significant enough effect on the amount of recoverable heat and its feasibility. An economic analysis computer program was developed on Visual Basic for Application in Microsoft Excel. The program was developed to be user friendly, to accept different levels of input data, and to expand for other heat recovery applications (i.e., power, desalination, etc.) by adding into the program the simulation subroutines of the desired applications. The developed program has been validated using experimental data.

Chuen-Sen Lin

2008-12-31T23:59:59.000Z

284

Conversion of a diesel engine to a spark ignition natural gas engine  

DOE Green Energy (OSTI)

Requirements for alternatives to diesel-fueled vehicles are developing, particularly in urban centers not in compliance with mandated air quality standards. An operator of fleets of diesel- powered vehicles may be forced to either purchase new vehicles or equip some of the existing fleets with engines designed or modified to run on alternative fuels. In converting existing vehicles, the operator can either replace the existing engine or modify it to burn an alternative fuel. Work described in this report addresses the problem of modifying an existing diesel engine to operate on natural gas. Tecogen has developed a technique for converting turbocharged automotive diesel engines to operate as dedicated spark-ignition engines with natural gas fuel. The engine cycle is converted to a more-complete-expansion cycle in which the expansion ratio of the original engine is unchanged while the effective compression ratio is lowered, so that engine detonation is avoided. The converted natural gas engine, with an expansion ratio higher than in conventional spark- ignition natural gas engines, offers thermal efficiency at wide-open- throttle conditions comparable to its diesel counterpart. This allows field conversion of existing engines. Low exhaust emissions can be achieved when the engine is operated with precise control of the fuel air mixture at stoichiometry with a 3-way catalyst. A Navistar DTA- 466 diesel engine with an expansion ratio of 16.5 to 1 was converted in this way, modifying the cam profiles, increasing the turbocharger boost pressure, incorporating an aftercooler if not already present, and adding a spark-ignition system, natural gas fuel management system, throttle body for load control, and an electronic engine control system. The proof-of-concept engine achieved a power level comparable to that of the diesel engine without detonation. A conversion system was developed for the Navistar DT 466 engine. NOx emissions of 1.5 g/bhp-h have been obtained.

NONE

1996-09-01T23:59:59.000Z

285

Demonstration of a NOx Control System for Stationary Diesel Engines  

Science Conference Proceedings (OSTI)

California has over 26,000 stationary diesel engines, mostly in emergency power and direct drive applications. In the past few years, various incentive programs in the state have resulted in the change-out of older, dirtier engines for newer, cleaner models or replacement with electric motors. Emissions reductions can be accomplished by equipping existing engines with controls for nitrogen oxides (NOx) and particulate matter (PM). The retrofit systems currently available, however, either are not cost com...

2005-06-30T23:59:59.000Z

286

Prime Movers of Globalization: The History and Impact of Diesel Engines and Gas Turbines  

E-Print Network (OSTI)

of Diesel Engines and Gas Turbines By Vaclav Smil Reviewedof Diesel Engines and Gas Turbines. Cambridge, MA: The MITin the 1890s and the gas turbine invented by Frank Whittle

Anderson, Byron P.

2011-01-01T23:59:59.000Z

287

High-alcohol microemulsion fuel performance in a diesel engine  

DOE Green Energy (OSTI)

Incidence of methanol use in diesel engines is increasing rapidly due to the potential to reduce both diesel particulate emissions and petroleum consumption. Because simple alcohols and conventional diesel fuel are normally immiscible, most tests to date have used neat to near-neat alcohol, or blends incorporating surfactants or other alcohols. Alcohol's poor ignition quality usually necssitates the use of often expensive cetane enhancers, full-time glow plugs, or spark assist. Reported herein are results of screening tests of clear microemulsion and micellar fuels which contain 10 to 65% C{sub 1}--C{sub 4} alcohol. Ignition performance and NO emissions were measured for clear, stable fuel blends containing alcohols, diesel fuel and additives such as alkyl nitrates, acrylic acids, and several vegetable oil derivatives. Using a diesel engine calibrated with reference fuels, cetane numbers for fifty four blends were estimated. The apparent cetane numbers ranged from around 20 to above 50 with the majority between 30 and 45. Emissions of nitric oxide were measured for a few select fuels and were found to be 10 to 20% lower than No. 2 diesel fuel. 36 refs., 87 figs., 8 tabs.

West, B.H.; Compere, A.L.; Griffith, W.L.

1990-01-01T23:59:59.000Z

288

Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Book), Clean Cities, Energy Efficiency & Renewable Energy (EERE)  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

School Bus * Shuttle Bus * Transit Bus * Refuse Truck * Tractor * Van * Vocational Truck School Bus * Shuttle Bus * Transit Bus * Refuse Truck * Tractor * Van * Vocational Truck Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles 2 Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles 3 Table of Contents About the Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Heavy-Duty Vehicle Application Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Heavy-Duty Emission Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Multiple-Stage Construction of Medium- and Heavy-Duty Vehicles . . . . . . . . . . . . . . . . . . 6 Chassis Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

289

Top U.S. Automakers Collaborate to Improve Heavy-Duty Freight Efficiency |  

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

Top U.S. Automakers Collaborate to Improve Heavy-Duty Freight Top U.S. Automakers Collaborate to Improve Heavy-Duty Freight Efficiency Top U.S. Automakers Collaborate to Improve Heavy-Duty Freight Efficiency November 22, 2013 - 5:37pm Addthis As part of the 21st Century Truck Partnership, the Army will demonstrate technology that converts waste heat from an exhaust system to electricity used in its Stryker vehicle. | Photo courtesy of courtesy of U.S. Army As part of the 21st Century Truck Partnership, the Army will demonstrate technology that converts waste heat from an exhaust system to electricity used in its Stryker vehicle. | Photo courtesy of courtesy of U.S. Army Natalie Committee Communications Specialist, Office of Energy Efficiency and Renewable Energy Detroit, the hub of America's automotive industry hosted a gathering of

290

Second Stage Intercooling Using LNG for Turbocharged Heavy Duty Road Vehicles Phase I Final Report  

DOE Green Energy (OSTI)

It is well documented in engine performance literature that reduced engine inlet air temperature increases power output and reduces NO, emissions for both diesel and spark ignited (SI) engines. In addition, reduced inlet temperature increases the knock resistance of SI engines. In that most HD natural gas engines are SI derivatives of diesel engines it is appropriate to evaluate the benefits of reduced engine air temperature through LNG fuel. This project investigated the ''real world'' possibilities of a patented process for utilizing the ''cold'' in LNG to chill engine inlet air. The results support the conclusion that doing so is a practical means to increase engine power and reduce engine-out NO{sub x}.

None

1999-09-21T23:59:59.000Z

291

Heavy Truck Clean Diesel Cooperative Research Program  

DOE Green Energy (OSTI)

This report is the final report for the Department of Energy on the Heavy Truck Engine Program (Contract No. DE-FC05-00OR22806) also known as Heavy Truck Clean Diesel (HTCD) Program. Originally, this was scoped to be a $38M project over 5 years, to be 50/50 co-funded by DOE and Caterpillar. The program started in June 2000. During the program the timeline was extended to a sixth year. The program completed in December 2006. The program goal was to develop and demonstrate the technologies required to enable compliance with the 2007 and 2010 (0.2g/bhph NOx, 0.01g/bhph PM) on-highway emission standards for Heavy Duty Trucks in the US with improvements in fuel efficiency compared to today's engines. Thermal efficiency improvement from a baseline of 43% to 50% was targeted.

Milam, David

2006-12-31T23:59:59.000Z

292

Physical properties of bio-diesel & Implications for use of bio-diesel in diesel engines  

SciTech Connect

In this study we identify components of a typical biodiesel fuel and estimate both their individual and mixed thermo-physical and transport properties. We then use the estimated mixture properties in computational simulations to gauge the extent to which combustion is modified when biodiesel is substituted for conventional diesel fuel. Our simulation studies included both regular diesel combustion (DI) and premixed charge compression ignition (PCCI). Preliminary results indicate that biodiesel ignition is significantly delayed due to slower liquid evaporation, with the effects being more pronounced for DI than PCCI. The lower vapor pressure and higher liquid heat capacity of biodiesel are two key contributors to this slower rate of evaporation. Other physical properties are more similar between the two fuels, and their impacts are not clearly evident in the present study. Future studies of diesel combustion sensitivity to both physical and chemical properties of biodiesel are suggested.

Chakravarthy, Veerathu K [ORNL; McFarlane, Joanna [ORNL; Daw, C Stuart [ORNL; Ra, Youngchul [ORNL; Griffin, Jelani K [ORNL; Reitz, Rolf [University of Wisconsin

2008-01-01T23:59:59.000Z

293

GEI 41040G - Specification for Fuel Gases for COmbustion in Heavy-Duty Gas Turbines  

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

Gas Turbine Gas Turbine Revised, January 2002 GEI 41040G These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection with installation, operation or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser's purposes the matter should be referred to the GE Company. © 1999 GENERAL ELECTRIC COMPANY Specification for Fuel Gases for Combustion in Heavy-Duty Gas Turbines GEI 41040G Specification for Fuel Gases for Combustion in Heavy-Duty Gas Turbines 2 TABLE OF CONTENTS I. INTRODUCTION 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

294

Design Evolution, Durability and Reliability of Mitsubishi Heavy-Duty Gas Turbines  

Science Conference Proceedings (OSTI)

Advanced, heavy-duty gas turbines carry a degree of technical risk because of new technologies incorporated into their designs. This report reviews the design evolution of specific Mitsubishi Heavy Industries, Ltd., heavy-duty industrial gas turbines in a standard format that facilitates an assessment of technical risks involved in their operation. The pedigree matrix includes performance and design features of the M501D/701D, M501F/701F, M501G/701G, M501H/701H, and M501J/701J machines. The report ...

2012-11-28T23:59:59.000Z

295

Diesel engine emissions reduction by multiple injections having increasing pressure  

DOE Patents (OSTI)

Multiple fuel charges are injected into a diesel engine combustion chamber during a combustion cycle, and each charge after the first has successively greater injection pressure (a higher injection rate) than the prior charge. This injection scheme results in reduced emissions, particularly particulate emissions, and can be implemented by modifying existing injection system hardware. Further enhancements in emissions reduction and engine performance can be obtained by using known measures in conjunction with the invention, such as Exhaust Gas Recirculation (EGR).

Reitz, Rolf D. (Madison, WI); Thiel, Matthew P. (Madison, WI)

2003-01-01T23:59:59.000Z

296

On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines  

SciTech Connect

The goal of the research was to refine and complete development of an on-board particulate matter (PM) sensor for diesel, DISI, and HCCI engines, bringing it to a point where it could be commercialized and marketed.

Hall, Matt; Matthews, Ron

2011-09-30T23:59:59.000Z

297

The piston dynamics under knock situation of diesel dual fuel engine: a numerical study  

Science Conference Proceedings (OSTI)

A compression ignition engine fueled by natural gas or Diesel Dual Fuel (DDF) engine is a promising engine for the future of a high oil price. Unfortunately, the DDF engine knocks easily: this leads to damage of pistons. So, the understanding of the ... Keywords: diesel dual fuel engine, knock, mixed-lubrication, modelling, piston secondary motion, simulation

Krisada Wannatong; Somchai Chanchaona; Surachai Sanitjai

2007-01-01T23:59:59.000Z

298

Coal-fueled diesel technology development -- Fuel injection equipment for coal-fueled diesel engines  

DOE Green Energy (OSTI)

Because of the abrasive and corrosive nature of coal water slurries, the development of coal-fueled diesel engine technology by GE-Transportation Systems (GE-TS) required special fuel injection equipment. GE-Corporate Research and Development (GE-CRD) undertook the design and development of fuel injectors, piston pumps, and check valves for this project. Components were tested at GE-CRD on a simulated engine cylinder, which included a cam-actuated jerk pump, prior to delivery to GE-TS for engine testing.

Johnson, R.N.; Hayden, H.L.

1994-01-01T23:59:59.000Z

299

Alternatives to conventional diesel fuel-some potential implications of California's TAC decision on diesel particulate.  

DOE Green Energy (OSTI)

Limitations on the use of petroleum-based diesel fuel in California could occur pursuant to the 1998 declaration by California's Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a carcinogen, therefore a toxic air contaminant (TAC) subject to provisions of the state's Proposition 65. It is the declared intention of CARB not to ban or restrict diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible ''mid-course'' strategies. (1) Increased penetration of natural gas and greater gasoline use in the transportation fuels market, to the extent that some compression-ignition (CI) applications revert to spark-ignition (SI) engines. (2) New specifications requiring diesel fuel reformulation based on exhaust products of individual diesel fuel constituents. Each of these alternatives results in some degree of (conventional) diesel displacement. In the first case, diesel fuel is assumed admissible for ignition assistance as a pilot fuel in natural gas (NG)-powered heavy-duty vehicles, and gasoline demand in California increases by 32.2 million liters per day overall, about 21 percent above projected 2010 baseline demand. Natural gas demand increases by 13.6 million diesel liter equivalents per day, about 7 percent above projected (total) consumption level. In the second case, compression-ignition engines utilize substitutes for petroleum-based diesel having similar ignition and performance properties. For each case we estimated localized air emission plus generalized greenhouse gas and energy changes. Economic implications of vehicle and engine replacement were not evaluated.

Eberhardt, J. J.; Rote, D. M.; Saricks, C. L.; Stodolsky, F.

1999-08-10T23:59:59.000Z

300

Natural Gas Engine Development: July 2003 -- July 2005  

SciTech Connect

Discusses project to develop heavy-duty, 8.1L natural gas vehicle engines that would be certifiable below the 2004 federal emissions standards and commercially viable.

Lekar, T. C.; Martin, T. J.

2006-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Engine performance and exhaust emissions from a diesel  

E-Print Network (OSTI)

Non-road diesel engines are significant contributors to air pollution in the United States. Recent regulations put forth by EPA and other environmental agencies have laid out stringent guidelines for engine manufacturers and fuel producers. Recent increases in oil prices and foreign energy dependency has led to a push to produce renewable fuels, which will supplement current reserves. Biodiesel is a clean-burning renewable fuel, that can be blended with petroleum diesel. It is important to understand the effect on engine performance and exhaust emissions when using biodiesel from different feedstocks. The objective of this research was to determine the relationship between engine performance and emissions and cottonseed oil biodiesel used in a diesel engine rated for 14.2 kW. When using cottonseed oil biodiesel blends, CO, hydrocarbon, NOx, and SO2 emissions decreased as compared to petroleum diesel. Carbon dioxide emissions had no definitive trend in relation to cottonseed oil biodiesel blends. Carbon monoxide emissions increased by an average 15% using B5 and by an average of 19% using B100. Hydrocarbon emissions decreased by 14% using B5 and by 26% using B100. Nitrogen oxide emissions decreased by four percent with B5, five percent with B20, and 14% with B100. Sulfur dioxide emissions decreased by an average of 86% using B100, and by 94% using B50 blended with ultra-low sulfur diesel. The difference between peak output power when using biodiesel and diesel was insignificant in blends less that B40. Peak measured power using B100 was about five percent lower than for diesel fuel. Pure cottonseed oil biodiesel achieved and maintained a peak corrected measured power of 13.1 kW at speeds of 2990, 2875, and 2800 rpm at loads of 41.3, 42.7, and 43.8 N-m. Using B5 produced a peak power of 13.6 kW at 2990 rpm and 43.9 N-m and at 2800 rpm and 46.7 N-m, while using B20 produced a peak power of 13.4 kW at 2990 rpm and 43.7 N-m. Brake-specific fuel consumption at peak measured load and torque using B100 was 1238 g/kW-h. Brake-specific fuel consumption at peak measured power and loads using B5 and B20 were 1276 and 1155 g/kW-h.

Powell, Jacob Joseph

2007-12-01T23:59:59.000Z

302

Development of a closed-loop, lean-burn natural gas engine control system. Final report, February 1993-December 1995  

SciTech Connect

The overall objective of this project was to develop a closed-loop, lean-burn control system for medium and heavy duty, lean-burn, gaseous fueled engines. The closed-loop F/A ratio control system was designed to provide diesel engine-like performance and fuel economy, and take advantage of the emissions benefits of a gaseous fueled engine. The control system was designed to have the processing power and I/O capacity to accommodate the engine Original Equipment Manufacturers (OEM`s).

Morris, D.A.

1996-06-01T23:59:59.000Z

303

Regulation of Emissions from Stationary Diesel Engines (released in AEO2007)  

Reports and Publications (EIA)

On July 11, 2006, the EPA issued regulations covering emissions from stationary diesel engines New Source Performance Standards that limit emissions of NOx, particulate matter, SO2, carbon monoxide, and hydrocarbons to the same levels required for nonroad diesel engines. The regulation affects new, modified, and reconstructed diesel engines. Beginning with MY 2007 [16], engine manufacturers must specify that new engines less than 3,000 horsepower meet the same emissions standard as nonroad diesel engines. For engines greater than 3,000 horsepower, the standard will be fully effective in 2011. Stationary diesel engine fuel will also be subject to the same standard as nonroad diesel engine fuel, which reduces the sulfur content of the fuel to 500 parts per million by mid-2007 and 15 parts per million by mid-2010.

Information Center

2007-02-22T23:59:59.000Z

304

An experimental investigation of low octane gasoline in diesel engines.  

DOE Green Energy (OSTI)

Conventional combustion techniques struggle to meet the current emissions norms. In particular, oxides of nitrogen (NO{sub x}) and particulate matter (PM) emissions have limited the utilization of diesel fuel in compression ignition engines. Advance combustion concepts have proved the potential to combine fuel efficiency and improved emission performance. Low-temperature combustion (LTC) offers reduced NO{sub x} and PM emissions with comparable modern diesel engine efficiencies. The ability of premixed, low-temperature compression ignition to deliver low PM and NO{sub x} emissions is dependent on achieving optimal combustion phasing. Diesel operated LTC is limited by early knocking combustion, whereas conventional gasoline operated LTC is limited by misfiring. So the concept of using an unconventional fuel with the properties in between those two boundary fuels has been experimented in this paper. Low-octane (84 RON) gasoline has shown comparable diesel efficiencies with the lowest NO{sub x} emissions at reasonable high power densities (NO{sub x} emission was 1 g/kW h at 12 bar BMEP and 2750 rpm).

Ciatti, S. A.; Subramanian, S. (Energy Systems)

2011-09-01T23:59:59.000Z

305

Impacts of Biodiesel Fuel Blends Oil Dilution on Light-Duty Diesel Engine Operation  

DOE Green Energy (OSTI)

Assesses oil dilution impacts on a diesel engine operating with a diesel particle filter, NOx storage, a selective catalytic reduction emission control system, and a soy-based 20% biodiesel fuel blend.

Thornton, M. J.; Alleman, T. L.; Luecke, J.; McCormick, R. L.

2009-08-01T23:59:59.000Z

306

Experimental and computational study of soot formation under diesel engine conditions  

E-Print Network (OSTI)

Past research has shown that during diesel combustion, soot is formed in local premixed fuel-rich regions. This project focuses on the fundamentals soot formation under fuel-rich conditions similar to those in diesel engine ...

Kitsopanidis, Ioannis, 1975-

2004-01-01T23:59:59.000Z

307

The Biodiesel Handbook, 2nd EditionChapter 3 The Basics of Diesel Engines and Diesel Fuels  

Science Conference Proceedings (OSTI)

The Biodiesel Handbook, 2nd Edition Chapter 3 The Basics of Diesel Engines and Diesel Fuels Biofuels and Bioproducts and Biodiesel Biofuels - Bioproducts eChapters AOCS 14987AFD8C4C7FBFCBA3FD4D98DB9DC5 Press   ...

308

Coal-fueled diesel technology development: Nozzle development for coal-fueled diesel engines  

SciTech Connect

Direct injection of a micronized coal water mixture fuel into the combustion chambers of a diesel engine requires atomizing an abrasive slurry fuel with accurately sized orifices. Five injector orifice materials were evaluated: diamond compacts, chemical vapor deposited diamond tubes, thermally stabilized diamond, tungsten carbide with cobalt binder, and tungsten carbide with nickel binder with brazed and mechanically mounted orifice inserts. Nozzle bodies were fabricated of Armco 17-4 precipitation hardening stainless steel and Stellite 6B in order to withstand cyclic injection pressures and elevated temperatures. Based on a total of approximately 200 cylinder hours of engine operation with coal water mixture fuel diamond compacts were chosen for the orifice material.

Johnson, R.N.; Lee, M.; White, R.A.

1994-01-01T23:59:59.000Z

309

Emissions and efficiency of agricultural diesels using low-proof ethanol as supplement fuel. [Tractor engines  

Science Conference Proceedings (OSTI)

Experimental investigations were made to evaluate the potential of using low-proof ethanol to supplement diesel fuel in agricultural engines. Fumigation, mechanical emulsification, and chemical emulsifiers were used to introduce a significant amount of alcohol with diesel fuel for engine operation. A total of five diesel tractor engines were tested using each of the fuel systems. Exhaust products and fuel usage were determined at various engine speed/load conditions. 5 references, 12 figures, 14 tables.

Allsup, J.R.; Clingenpeel, J.M.

1984-01-01T23:59:59.000Z

310

Development of wear-resistant ceramic coatings for diesel engine components. Volume 1, Coating development and tribological testing: Final report: DOE/ORNL Ceramic Technology Project  

DOE Green Energy (OSTI)

The tribological properties of a variety of advanced coating materials have been evaluated under conditions which simulate the piston ring -- cylinder liner environment near top ring reversal in a heavy duty diesel engine. Coated ``ring`` samples were tested against a conventional pearlitic grey cast iron liner material using a high temperature reciprocating wear test rig. Tests were run with a fresh CE/SF 15W40lubricant at 200 and 350{degrees}C, with a high-soot, engine-tested oil at 200{degrees}C and with no lubrication at 200{degrees}C. For lowest wear under boundary lubricated conditions, the most promising candidates to emerge from this study were high velocity oxy-fuel (HVOF) Cr{sub 3} C{sub 2} - 20% NiCr and WC - 12% Co cermets, low temperature arc vapor deposited (LTAVD) CrN and plasma sprayed chromium oxides. Also,plasma sprayed Cr{sub 2}O{sub 3} and A1{sub 2}O{sub 3}-ZrO{sub 2} materials were found to give excellent wear resistance in unlubricated tests and at extremely high temperatures (450{degrees}C) with a syntheticoil. All of these materials would offer substantial wear reductions compared to the conventional electroplated hard chromium ring facing and thermally sprayed metallic coatings, especially at high temperatures and with high-soot oils subjected to degradation in diesel environments. The LTAVD CrN coating provided the lowest lubricated wear rates of all the materials evaluated, but may be too thin (4 {mu}m) for use as a top ring facing. Most of the coatings evaluated showed higher wear rates with high-soot, engine-tested oil than with fresh oil, with increases of more than a factor of ten in some cases. Generally, metallic materials were found to be much more sensitive to soot/oil degradation than ceramic and cermet coatings. Thus, decreased ``soot sensitivity`` is a significant driving force for utilizing ceramic or cermet coatings in diesel engine wear applications.

Naylor, M.G.S. [Cummins Engine Co., Inc., Columbus, IN (United States)

1992-06-01T23:59:59.000Z

311

TRANSIENT, REAL-TIME, PARTICULATE EMISSION MEASUREMENTS IN DIESEL ENGINES  

DOE Green Energy (OSTI)

This paper reports our efforts to develop an instrument, TG-1, to measure particulate emissions from diesel engines in real-time. TG-1 while based on laser-induced incandescence allows measurements at 10 Hz on typical engine exhausts. Using such an instrument, measurements were performed in the exhaust of a 1.7L Mercedes Benz engine coupled to a low inertia dynamometer. Comparative measurements performed under engine steady state conditions showed the instrument to agree within {+-}12% of measurements performed with an SMPS. Moreover, the instrument had far better time response and time resolution than a TEOM{reg_sign} 1105. Also, TG-1 appears to surpass the shortcomings of the TEOM instrument, i.e., of yielding negative values under certain engine conditions and, being sensitive to external vibration.

Gupta, S; Shih, J; Hillman, G; sekar, R; Graze, R; Shimpi, S; Martin, W; Pier, D

2003-08-24T23:59:59.000Z

312

ENSC 461: Four-Stroke Diesel Engine School of Engineering Science  

E-Print Network (OSTI)

Objective - Determining characteristic curve of a four-stroke Diesel engine - Calculating thermal efficiency digitally. Additional connections and displays for measurements of exhaust-gas temperature and the engine for various fuel tanks (1); a pipeline (not visible here) is used to fill the measurement tube (7) for fuel

Bahrami, Majid

313

Fuel comsumption of heavy-duty trucks : potential effect of future technologies for improving energy efficiency and emission.  

Science Conference Proceedings (OSTI)

The results of an analysis of heavy-duty truck (Classes 2b through 8) technologies conducted to support the Energy Information Administration's long-term projections for energy use are summarized. Several technology options that have the potential to improve the fuel economy and emissions characteristics of heavy-duty trucks are included in the analysis. The technologies are grouped as those that enhance fuel economy and those that improve emissions. Each technology's potential impact on the fuel economy of heavy-duty trucks is estimated. A rough cost projection is also presented. The extent of technology penetration is estimated on the basis of truck data analyses and technical judgment.

Saricks, C. L.; Vyas, A. D.; Stodolsky, F.; Maples, J. D.; Energy Systems; USDOE

2003-01-01T23:59:59.000Z

314

Innovative coal-fueled diesel engine injector  

DOE Green Energy (OSTI)

The purpose of this research investigation was to develop an electronic coal water slurry injection system in conjunction with the Thermal Ignition Combustion System (TICS) concept to achieve autoignition of CWS at various engine load and speed conditions without external ignition sources. The combination of the new injection system and the TICS is designed to reduce injector nozzle spray orifice wear by lowering the peak injection pressure requirements. (VC)

Badgley, P.; Doup, D.

1991-05-01T23:59:59.000Z

315

Sf Statement of Considerations REQUEST BY CATERPILLAR INC. FOR...  

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

of medium and heavy duty diesel engines, spark ignited gas engines, and industrial gas turbine engines. It produces approximately 113,000 diesel engines a year with power...

316

[Martin high pressure common rail diesel engine injection system]. Technical progress report, August--October 1995  

DOE Green Energy (OSTI)

We have a contract with Diesel Recerche of Trieste, Italy, and the Fincantier Group in Italy. They are naval ship builders. Our contract is to work with Diesel Recerche to design the `Martin` fuel injection system for their first test engine for a naval ship. Tiby Martin has been working in the design and detailed layout of the application drawings for Diesel Recerche.

NONE

1995-12-01T23:59:59.000Z

317

Zeolite Based SCR Catalysts for Off-Road Diesel Engine Emission ...  

Since diesel engines operate under lean ... concentrations of particulates and Nox while CO and hydrocarbons are low as compared with stoichiometric gasoline

318

DISCRETE-FREQUENCY AND BROADBAND NOISE RADIATION FROM DIESEL ENGINE COOLING FANS.  

E-Print Network (OSTI)

??This effort focuses on measuring and predicting the discrete-frequency and broadband noise radiated by diesel engine cooling fans. Unsteady forces developed by the interaction of… (more)

Kim, Geon-Seok

2007-01-01T23:59:59.000Z

319

Development of LNG-Powered Heavy-Duty Trucks in Commercial Hauling  

DOE Green Energy (OSTI)

In support of the U.S. Department of Energy's development, deployment, and evaluation of alternative fuels, NREL and the Trucking Research Institute contracted with Detroit Diesel Corporation (DDC) to develop and operate a liquid natural gas fueled tractor powered by a DDC Series 50 prototype natural gas engine. This is the final report on the project.

Detroit Diesel Corporation; Trucking Research Institute

1998-12-03T23:59:59.000Z

320

EXPLORING LOW EMISSION DIESEL ENGINE OILS WORKSHOP - A SUMMARY REPORT  

DOE Green Energy (OSTI)

This paper discusses and summarizes some of the results of the title workshop. The workshop was held January 31-February 2, 2000 in Phoenix, Arizona. The purpose of the workshop was ''To craft a shared vision for Industry-Government (DOE) research and development collaboration in Diesel Engine Oils to minimize emissions while maintaining or enhancing engine performance''. The final report of the workshop (NREL/SR-570-28521) was issued in June 2000 by the National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401-3393. There were some 95 participants at the workshop representing industry, government and academia, Figure 1. The format for the workshop is described in Figure 2. This format allowed for considerable discussion of the various issues prior to deliberations in breakout groups. This process resulted in recommendations to solve the issues related to the next generation of diesel engine oils. Keynote addresses by SAE President Rodica Baranescu (International Truck and Engine Corporation), James Eberhardt of DOE and Paul Machiele of EPA focused on diesel progress, workshop issues and regulatory fuel issues. A panel of experts further defined the issues of interest, presenting snapshots of the current status in their areas of expertise. A Q&A session was followed by a series of technical presentations discussing the various areas. Some two dozen presentations covered the technical issues, Figure 3. An open forum was held to allow any participant to present related studies or comment on any of the technical issues. The participants broke into work groups addressing the various areas found on Figure 2. A group leader was appointed and reported on their findings, recommendations, suggested participants for projects and on related items.

Perez, Joseph

2000-08-20T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

DEVELOPMENT OF UREA-SCR FOR HEAVY-DUTY TRUCKS DEMONSTRATION UPDATE  

DOE Green Energy (OSTI)

This study included engine cell and vehicle tests. The engine cell tests are aimed at determining NOX reduction using the US transient and OICA emissions test cycles. These cycles will be included in future US HD emissions standards. The vehicle tests will show urea-SCR system performance during real-world operation. These tests will prove that the technology can be successfully implemented and demonstrated over-the-road. The program objectives are to: (a) apply urea-SCR to a US HD diesel engine; (b) determine engine cell emissions reduction during US-transient and OICA cycles; (c) apply urea-SCR to a US HD diesel truck; and (d) determine NOX reduction and urea consumption during over-the-road operation.

Miller, William

2000-08-20T23:59:59.000Z

322

Photos | Argonne National Laboratory  

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

efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty...

323

In The News | Argonne National Laboratory  

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

efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty...

324

Downloads | Argonne National Laboratory  

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

efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty...

325

Feature Stories | Argonne National Laboratory  

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

efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty...

326

Press Releases | Argonne National Laboratory  

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

efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty...

327

Videos | Argonne National Laboratory  

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

efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty...

328

PCR+ In Diesel Fuels and Emissions Research  

DOE Green Energy (OSTI)

In past work for the U.S. Department of Energy (DOE) and Oak Ridge National Laboratory (ORNL), PCR+ was developed as an alternative methodology for building statistical models. PCR+ is an extension of Principal Components Regression (PCR), in which the eigenvectors resulting from Principal Components Analysis (PCA) are used as predictor variables in regression analysis. The work was motivated by the observation that most heavy-duty diesel (HDD) engine research was conducted with test fuels that had been ''concocted'' in the laboratory to vary selected fuel properties in isolation from each other. This approach departs markedly from the real world, where the reformulation of diesel fuels for almost any purpose leads to changes in a number of interrelated properties. In this work, we present new information regarding the problems encountered in the conventional approach to model-building and how the PCR+ method can be used to improve research on the relationship between fuel characteristics and engine emissions. We also discuss how PCR+ can be applied to a variety of other research problems related to diesel fuels.

McAdams, H.T.

2002-04-15T23:59:59.000Z

329

Emissions comparison between petroleum diesel and biodiesel in a medium-duty diesel engine  

E-Print Network (OSTI)

Biofuels have become very important topics over the past decade due to the rise in crude oil prices, fear of running out of crude oil, and environmental impact of emissions. Biodiesel is a biofuel that is made from plant seed oils, waste cooking oils, or animal fats. It has become increasingly popular and is looked at as a diesel replacement. This research characterizes the emissions of the new John Deere PowerTech Plus 4045HF285 in the Advance Engine Research Laboratory at Texas A&M University and compares the emissions of a 100 percent blended feed stock biodiesel to an ultra low sulfur diesel certification fuel. The steady state tests were conducted while holding engine speed constant at three different speeds and three different loads. The gaseous emissions, exhaust gas recirculation, fuel flow rate, and torque were monitored and recorded for 300 points per test. Four tests were performed and the results were averaged per each fuel. Carbon monoxide, carbon dioxide, oxygen, and oxides of nitrogen emissions were analyzed. The biodiesel averaged up to 12% lower torque, 5.4% more fuel, 7.5% less carbon dioxide, 29% more oxygen, and 29% more oxides of nitrogen. Overall the biodiesel produced less torque and carbon dioxide emissions, while emitting more oxygen and oxides of nitrogen.

Tompkins, Brandon T.

2008-12-01T23:59:59.000Z

330

Truckstop Electrification Implementation Plan: A Diesel Engine Idle Reduction in Class 8 Trucks Using On-Vehicle Shore-Power Nationa l Demonstration Project  

Science Conference Proceedings (OSTI)

During any hour of the day in the United States, over 100,000 heavy-duty truck engines may be idling to provide heating or air conditioning for their resting drivers. During nighttime hours, this number might climb to 200,000 idling engines. Heating or air conditioning loads typically served by these idling engines only amount to one or two horsepower per truck. Because the parasitic loads required to keep these engines idling are typically from ten to thirty horsepower, exhaust emissions attributable to...

2003-01-13T23:59:59.000Z

331

Engines - 3-D Animation Shows Complex Geometry of Diesel Particulates  

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

3-D Animation Shows Complex Geometry of Diesel Particulates Diesel particulate matter has a very complex geometry Most studies have observed these three-dimensional structures in...

332

Heavy Vehicle and Engine Resource Guide  

DOE Green Energy (OSTI)

The Heavy Vehicle and Engine Resource Guide is a catalog of medium- and heavy-duty engines and vehicles with alternative fuel and advanced powertrain options. This edition covers model year 2003 engines and vehicles.

Not Available

2004-03-01T23:59:59.000Z

333

Diesel engine lubrication with poor quality residual fuel  

Science Conference Proceedings (OSTI)

The quality of marine residual fuel is declining. This is being caused by a gradual trend towards production of heavier crudes and increased residuum conversion processes in refineries to meet light product demand while holding down crude runs. Additionally, more stringent inland fuel sulfur regulations have caused the higher sulfur residues to be used for marine residual fuel blending. Engine manufacturers are making major efforts in design so that their engines can burn these fuels at high efficiency with minimum adverse effects. The oil industry is developing improved lubricants to reduce as much as possible the increased wear and deposit formation caused by these poor quality fuels. To guide the development of improved lubricants, knowledge is required about the impact of the main fuel characteristics on lubrication. This paper summarizes work conducted to assess the impact of fuel sulfur, Conradson carbon and asphaltenes on wear and deposit formation in engines representative of full scale crosshead diesel engines and medium speed trunk piston engines. Results obtained with improved lubricants in these engines are reviewed.

Van der Horst, G.W.; Hold, G.E.

1983-01-01T23:59:59.000Z

334

Engine Performance and Exhaust Emissions of a Diesel Engine From Various Biodiesel Feedstock  

E-Print Network (OSTI)

Increasing fuel prices, stricter government policies, and technological developments made it possible to seek for renewable alternatives, called biofuels, to petroleum fuel. Biodiesel, a biofuel that is produced from chemically mixing animal fat, vegetable oils, or recycled restaurant grease with alcohol and catalyst, is gaining popularity in recent years as a substitute for petroleum diesel. Ninety percent (90%) of U.S. biodiesel industry makes use of soybean oil as its feedstock. However, soybean oil alone cannot meet such a huge demand on biofuel production. Hence, it is important to identify and get more information about other feedstocks, specifically on its effects on the performance and exhaust emissions of diesel engines. The purpose of this study is to investigate the performance and emissions of two diesel engines operating on different biodiesel fuels (i.e. canola oil, sunflower oil, safflower oil, peanut oil, and chicken fat) and compare them to the performance and emissions when the engine is operated on soybean oil-based biodiesel and petroleum-based diesel. Results indicated that an engine operating on biodiesel generates a little less power and torque at any given speed than one running on diesel. Such power and torque loss were attributed to the biodiesel's lower energy content. The lower heating value (energy content) of biodiesel can be reflected in the specific fuel consumption, i.e., to generate the same power, more biodiesel is needed. The reduction in torque and power of less than 10% indicates that in some cases biodiesel has better combustion than diesel. Unfortunately, the high efficiency of combustion may give rise to increased combustion temperature which may lead to higher exhaust emissions. The gradual decrease in the total hydrocarbon and CO2 emissions, as blends were increased from B20 to B100, was also found to be an indication of better combustion using biodiesel fuels than petroleum diesel. However, NOx emissions were higher, predominantly at low speeds for most biodiesel and blends and therefore may require some additives or engine modifications/or adjustments to equalize the NOx emissions of diesel. Other emissions particularly SO2 were lower than standards require.

Santos, Bjorn Sanchez

2009-12-01T23:59:59.000Z

335

REVISED NOTICE OF PROPOSED AWARDS Advanced Natural Gas Engine Research and Development for Class 3  

E-Print Network (OSTI)

REVISED NOTICE OF PROPOSED AWARDS Advanced Natural Gas Engine Research and Development for Class 3 Notice (PON-12-504) entitled "Advanced Natural Gas Engine research and Development for Class 3 through of natural gas engine concepts for application in light heavy-duty vehicles (LHDV) and medium heavy duty

336

9th Diesel Engine Emissions Reduction (DEER) Workshop 2003  

DOE Green Energy (OSTI)

The PowerTrap{trademark} is a non-exhaust temperature dependent system that cannot become blocked and features a controlled regeneration process independent of the vehicle's drive cycle. The system has a low direct-current power source requirement available in both 12-volt and 24-volt configurations. The system is fully programmable, fully automated and includes Euro IV requirements of operation verification. The system has gained European component-type approval and has been tested with both on- road and off-road diesel fuel up to 2000 parts per million. The device is fail-safe: in the event of a device malfunction, it cannot affect the engine's performance. Accumulated mileage testing is in excess of 640,000 miles to date. Vehicles include London-type taxicabs (Euro 1 and 2), emergency service fire engines (Euro 1, 2, and 3), inner city buses, and light-duty locomotives. Independent test results by Shell Global Solutions have consistently demonstrated 85-99 percent reduction of ultrafines across the 7-35 nanometer size range using a scanning mobility particle sizer with both ultra-low sulfur diesel and off-road high-sulfur fuel.

Kukla, P; Wright, J; Harris, G; Ball, A; Gu, F

2003-08-24T23:59:59.000Z

337

Attaining Tier 2 Emissions Through Diesel Engine and Aftertreatment Integration - Strategy and Experimental Results  

DOE Green Energy (OSTI)

The feasibility of diesel engines to meet the stringent emissions regulations of 2007 and beyond is an important consideration for light trucks and other personal transportation vehicles. Integrated engine and aftertreatment systems have been developed at Detroit Diesel Corporation for multiple engine and vehicle platforms. Tier 2 emissions technologies have been demonstrated with significant fuel economy advantage compared to the respective production gasoline engines while maintaining excellent drivability.

Aneja, R.; Bolton, B.; Hakim, N.; Pavlova-MacKinnon, Z.

2002-08-25T23:59:59.000Z

338

TECHNICAL NOTE HEAVY-DUTY DIESEL VEHICLE (HDDV) IDLING ACTIVITY AND  

E-Print Network (OSTI)

. The model was implemented using PHAST [54], a saturated flow and reactive transport computer code. PHAST directly. However, it was found that PHAST is computationally more efficient. Moreover, the same model PHAST. 3.3. Model calibration Field monitoring data were available for several components

339

Heavy Duty Diesel Particulate Matter and Fuel Consumption Modeling for Transportation Analysis  

E-Print Network (OSTI)

fuel use. Mesoscale Modeling Data Set and Mesoscale Modelobserved, quantified in the data set, and modeled to improveerrors for the validation data set are less than 2% for fuel

Scora, George Alexander

2011-01-01T23:59:59.000Z

340

Development of a Heavy-Duty Diesel Modal Emissions and Fuel Consumption Model  

E-Print Network (OSTI)

Modal Emissions and Fuel Consumption Model 2. Brown, S. ,Modal Emissions and Fuel Consumption Model Clark, N. N. andModal Emissions and Fuel Consumption Model 4.6. E XHAUST A

Barth, Matthew; Younglove, Theodore; Scora, George

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Heavy Duty Diesel Particulate Matter and Fuel Consumption Modeling for Transportation Analysis  

E-Print Network (OSTI)

the amount of wasted energy (or increased emissions) due toa certain amount of energy is wasted due to inefficiencies

Scora, George Alexander

2011-01-01T23:59:59.000Z

342

Evaluation of Fuel Cell Auxiliary Power Units for Heavy-Duty Diesel Trucks  

E-Print Network (OSTI)

J. , Gottesfeld, S. , 1999. Direct methanol fuel cells.Fuel cells for transportation. 1999 Annual Progress Report.Auxiliary power units; Fuel cells 1. Introduction A large

2002-01-01T23:59:59.000Z

343

Evaluation of Fuel Cell Auxiliary Power Units for Heavy-Duty Diesel Trucks  

E-Print Network (OSTI)

Fuel cells for transportation. 1999 Annual Progress Report.J. , Gottesfeld, S. , 1999. Direct methanol fuel cells.Auxiliary power units; Fuel cells 1. Introduction A large

2002-01-01T23:59:59.000Z

344

A Fuel-Based Inventory for Heavy-Duty Diesel Truck Emissions  

E-Print Network (OSTI)

Air Resources Board, Sacramento, CA, 1996. Harvey, G.W. ;of Transportation, Sacramento, CA. Personal Communication,Board, Mobile Source Division, Sacramento, CA, 1993.

Dreher, David B.; Harley, Robert A.

1998-01-01T23:59:59.000Z

345

Evaluation of Oil Bypass Filter Technology on Heavy-Duty Vehicles  

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

(Advanced Vehicle Testing Activity) (Advanced Vehicle Testing Activity) Evaluation of Oil Bypass Filter Technology on Heavy-Duty Vehicles James Francfort American Filtration and Separations Society April 2005 Presentation Outline * Background & Objectives * Oil bypass filters - features & reported benefits * INL testing method * puraDYN oil bypass filters * Refined Global Solutions (RGS) oil bypass filters * Testing results & trends * Particulate and ferrography testing * Initial INL Oil Bypass Filter Economics * Potential fleet oil savings * Testing Status Bypass Filter Evaluation - Background * Funded by the U.S. Department of Energy's FreedomCAR & Vehicle Technologies Program (Advanced Vehicle Testing Activity) * Vehicles operated by Idaho National Laboratory's Fleet Operations group * Idaho National Laboratory

346

Large heavy-duty gas turbines for base-load power generation and heat cogeneration  

SciTech Connect

The predominant role of large gas turbines has shifted from peaking-load duty to midrange and base-load electric power generation, especially within combined-cycle plants. Such applications require heavy-duty industrial gas turbines to ensure the same high reliability and availability for continuous service as the associated steam turbines. It is also important that the gas turbines be designed for low maintenance to minimize the necessary outage times and costs for component repair and replacement. The basic design principles and applications of Model V94 gas turbines are discussed with special reference to highly reliable and economic bulk power generation.

Joyce, J.S.

1985-01-01T23:59:59.000Z

347

Prediction of diesel engine performance using biofuels with artificial neural network  

Science Conference Proceedings (OSTI)

Biodiesel, bioethanol and biogas are the most important alternative fuels produced by using biologic origin sources. Effect of biofuel on engine performance is one of the research subjects of today. The engine experiments to test the engines are many ... Keywords: Artificial neural network, Biodiesel, Bioethanol, E-diesel, Engine performance

Hidayet O?uz; Ismail Sar?tas; Hakan Emre Baydan

2010-09-01T23:59:59.000Z

348

Engineering for sustainable development for bio-diesel production  

E-Print Network (OSTI)

Engineering for Sustainable Development (ESD) is an integrated systems approach, which aims at developing a balance between the requirements of the current stakeholders without compromising the ability of the future generations to meet their needs. This is a multi-criteria decision-making process that involves the identification of the most optimal sustainable process, which satisfies economic, ecological and social criteria as well as safety and health requirements. Certain difficulties are encountered when ESD is applied, such as ill-defined criteria, scarcity of information, lack of process-specific data, metrics, and the need to satisfy multiple decision makers. To overcome these difficulties, ESD can be broken down into three major steps, starting with the Life Cycle Assessment (LCA) of the process, followed by generation of non-dominating alternatives, and finally selecting the most sustainable process by employing an analytic hierarchical selection process. This methodology starts with the prioritization of the sustainability metrics (health and safety, economic, ecological and social components). The alternatives are then subjected to a pair-wise comparison with respect to each Sustainable Development (SD) indicator and prioritized depending on their performance. The SD indicator priority score and each individual alternative’s performance score together are used to determine the most sustainable alternative. The proposed methodology for ESD is applied for bio-diesel production in this thesis. The results obtained for bio-diesel production using the proposed methodology are similar to the alternatives that are considered to be economically and environmentally favorable by both researchers and commercial manufacturers; hence the proposed methodology can be considered to be accurate. The proposed methodology will also find wide range of application as it is flexible and can be used for the sustainable development of a number of systems similar to the bio-diesel production system; it is also user friendly and can be customized with ease. Due to these benefits, the proposed methodology can be considered to be a useful tool for decision making for sustainable development of chemical processes.

Narayanan, Divya

2007-05-01T23:59:59.000Z

349

Alternatives to Diesel Fuel in California - Fuel Cycle Energy and Emission Effects of Possible Replacements Due to the TAC Diesel Particulate Decision  

DOE Green Energy (OSTI)

Limitations on petroleum-based diesel fuel in California could occur pursuant to the 1998 declaration by California's Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a carcinogen, therefore a toxic air contaminant (TAC) subject to the state's Proposition 65. It is the declared intention of CARB not to ban or restrict diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible ''mid-course'' strategies, each of which results in some degree of (conventional) diesel displacement. In the first case, with substantial displacement of compression ignition by spark ignition engines, diesel fuel is assumed admissible for ignition assistance as a pilot fuel in natural gas (NG)-powered heavy-duty vehicles. Gasoline demand in California increases by 32.2 million liters (8.5 million gallons) per day overall, about 21 percent above projected 2010 baseline demand. Natural gas demand increases by 13.6 million diesel liter (3.6 million gallon) equivalents per day, about 7 percent above projected (total) consumption level. In the second case, ressionignition engines utilize substitutes for petroleum-based diesel having similar ignition and performance properties. For each case we estimated localized air emission plus generalized greenhouse gas and energy changes. Fuel replacement by di-methyl ether yields the greatest overall reduction in NOx emissions, though all scenarios bring about PM10 reductions relative to the 2010 baseline, with greatest reductions from the first case described above and the least from fuel replacement by Fischer-Tropsch synthetic diesel. Economic implications of vehicle and engine replacement were not formally evaluated.

Christopher L. Saraicks; Donald M. Rote; Frank Stodolsky; James J. Eberhardt

2000-05-01T23:59:59.000Z

350

Alternatives to diesel fuel in California - fuel cycle energy and emission effects of possible replacements due to the TAC diesel particulate decision.  

DOE Green Energy (OSTI)

Limitations on petroleum-based diesel fuel in California could occur pursuant to the 1998 declaration by California's Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a carcinogen, therefore a toxic air contaminant (TAC) subject to the state's Proposition 65. It is the declared intention of CARB not to ban or restrict diesel fuel per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible mid-course strategies, each of which results in some degree of (conventional) diesel displacement. In the first case, with substantial displacement of compression-ignition by spark-ignition engines, diesel fuel is assumed admissible for ignition assistance as a pilot fuel in natural gas (NG)-powered heavy-duty vehicles. Gasoline demand in California increases by 32.2 million liters (8.5 million gallons) per day overall, about 21% above projected 2010 baseline demand. Natural gas demand increases by 13.6 million diesel liter (3.6 million gallon) equivalents per day, about 7% above projected (total) consumption level. In the second case, compression-ignition engines utilize substitutes for petroleum-based diesel having similar ignition and performance properties. For each case the authors estimated localized air emission plus generalized greenhouse gas and energy changes. Fuel replacement by di-methyl ether yields the greatest overall reduction in NOX emissions, though all scenarios bring about PM{sub 10} reductions relative to the 2010 baseline, with greatest reductions from the first case described above and the least from fuel replacement by Fischer-Tropsch synthetic diesel. Economic implications of vehicle and engine replacement were not formally evaluated.

Saricks, C. L.; Rote, D. M.; Stodolsky, F.; Eberhardt, J. J.

1999-12-03T23:59:59.000Z

351

Tracing Fuel Component Carbon in the Emissions from Diesel Engines  

DOE Green Energy (OSTI)

The addition of oxygenates to diesel fuel can reduce particulate emissions, but the underlying chemical pathways for the reductions are not well understood. While measurements of particulate matter (PM), unburned hydrocarbons (HC), and carbon monoxide (CO) are routine, determining the contribution of carbon atoms in the original fuel molecules to the formation of these undesired exhaust emissions has proven difficult. Renewable bio-derived fuels (ethanol or bio-diesel) containing a universal distribution of contemporary carbon are easily traced by accelerator mass spectrometry (AMS). These measurements provide general information about the emissions of bio-derived fuels. Another approach exploits synthetic organic chemistry to place {sup 14}C atoms in a specific bond position in a specific fuel molecule. The highly labeled fuel molecule is then diluted in {sup 14}C-free petroleum-derived stock to make a contemporary petroleum fuel suitable for tracing. The specific {sup 14}C atoms are then traced through the combustion event to determine whether they reside in PM, HC, CO, CO{sub 2}, or other emission products. This knowledge of how specific molecular structures produce certain emissions can be used to refine chemical-kinetic combustion models and to optimize fuel composition to reduce undesired emissions. Due to the high sensitivity of the technique and the lack of appreciable {sup 14}C in fossil fuels, fuels for AMS experiments can be labeled with modern levels of {sup 14}C and still produce a strong signal. Since the fuel is not radioactive, emission tests can be conducted in any conventional engine lab, dynamometer facility, or on the open road.

Buchholz, B A; Mueller, C J; Martin, G C; Cheng, A S E; Dibble, R W; Frantz, B R

2002-10-14T23:59:59.000Z

352

TransForum v9n2 - Air Force Fellows and Smarter Diesel Engines  

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

Air Force Fellows Help Work Toward Smarter Diesel Engines Air force fellows Major Clint Abell (center), Steve McConnell, Lt. Col. Jeff Gillen, Thomas Wallner and Steve Ciatti (in...

353

Part load operation and heat recovery optimization in cogeneration units with diesel engines  

Science Conference Proceedings (OSTI)

This paper investigates the optimization possibilities of different co-generation units with diesel engines — especially applied in small and middle-size biogas power plant installations. The first subject of the publication is the analysis of ...

Slawomir Smolen

2008-05-01T23:59:59.000Z

354

A Detailed Multi-Zone Thermodynamic Simulation For Direct-Injection Diesel Engine Combustion  

E-Print Network (OSTI)

A detailed multi-zone thermodynamic simulation has been developed for the direct-injection (DI) diesel engine combustion process. For the purpose of predicting heterogeneous type combustion systems, the model explores the formation of pre-ignition radicals, start of combustion, and eventual heat release. These mechanisms are described based on the current understanding and knowledge of the diesel engine combustion acquired through advanced laser-based diagnostics. Six zones are developed to take into account the surrounding bulk gas, liquid- and vapor-phase fuel, pre-ignition mixing, fuel-rich combustion products as well as the diffusion flame combustion products. A three-step phenomenological soot model and a nitric oxide emission model are applied based on where and when each of these reactions mainly occurs within the diesel fuel jet evolution process. The simulation is completed for a 4.5 liter, inline four-cylinder diesel engine for a range of operating conditions. Specifically, the engine possesses a compression ratio of 16.6, and has a bore and stroke of 106 and 127 mm. The results suggest that the simulation is able to accurately reproduce the fuel jet evolution and heat release process for conventional diesel engine combustion conditions. The soot and nitric oxide models are able to qualitatively predict the effects of various engine parameters on the engine-out emissions. In particular, the detailed thermodynamics and characteristics with respect to the combustion and emission formation processes are investigated for different engine speed/loads, injection pressures and timings, and EGR levels. The local thermodynamic properties and energy, mass distributions obtained from the simulation offer some fundamental insights into heterogeneous type combustion systems. The current work provides opportunities to better study and understand the diesel engine combustion and emission formation mechanisms for conventional diesel engine combustion modes. The flexible, low computational cost features of this simulation result in a convenient tool for conducting parametric studies, and benefits for engine control and diagnostics.

Xue, Xingyu 1985-

2012-12-01T23:59:59.000Z

355

An In-Cylinder Study of Soot and NO in a DI Diesel Engine. Final report  

DOE Green Energy (OSTI)

Clearly the reduction of NOx and particulate emissions remains a major challenge to Diesel engine manufacturers due to increasingly stringent emission standards in the US and other countries. The well documented NOx/particulate trade-off observed in Diesel engines makes the simultaneous reduction of both emissions particularly difficult for manufacturers to achieve. In an effort to provide an improved understanding of the fundamental processes which result in this trade-off, a program was carried out at Penn State to develop the appropriate engine facilities and laser diagnostics to permit in-cylinder studies of Diesel combustion and emissions production with the support of the Department of Energy Advanced Industrial Technology Division . This work has also been supported by the Cummins Engine Company, Lubrizol Corporation and the National Science Foundation. An optically accessible, direct injection, Diesel engine was constructed for these studies. The major objective of the, design of the engine was to maximize optical access under conditions representative of Diesel engine combustion in small bore, commercial engines. Intake air is preheated and boosted in pressure to make the in-cylinder conditions of heat release and pressure as realistic as possible. Another important objective of the design was flexibility in combustion chamber geometry to permit a variety of head and bowl geometries to be studied. In all the results reported in this report a square bowl was used to simplify the introduction of laser light sheets into the engine.

Litzinger, T.A.

1995-10-18T23:59:59.000Z

356

STATE OF THE ART AND FUTURE DEVELOPMENTS IN NATURAL GAS ENGINE TECHNOLOGIES  

DOE Green Energy (OSTI)

Current, state of the art natural gas engines provide the lowest emission commercial technology for use in medium heavy duty vehicles. NOx emission levels are 25 to 50% lower than state of the art diesel engines and PM levels are 90% lower than non-filter equipped diesels. Yet, in common with diesel engines, natural gas engines are challenged to become even cleaner and more efficient to meet environmental and end-user demands. Cummins Westport is developing two streams of technologies to achieve these goals for medium-heavy and heavy-heavy duty applications. For medium-heavy duty applications, lowest possible emissions are sought on SI engines without significant increase in complexity and with improvements in efficiency and BMEP. The selected path builds on the capabilities of the CWI Plus technology and recent diesel engine advances in NOx controls, providing potential to reduce emissions to 2010 values in an accelerated manner and without the use of Selective Catalytic Reduction or NOx Storage and Reduction technology. For heavy-heavy duty applications where high torque and fuel economy are of prime concern, the Westport-Cycle{trademark} technology is in field trial. This technology incorporates High Pressure Direct Injection (HPDI{trademark}) of natural gas with a diesel pilot ignition source. Both fuels are delivered through a single, dual common rail injector. The operating cycle is entirely unthrottled and maintains the high compression ratio of a diesel engine. As a result of burning 95% natural gas rather than diesel fuel, NOx emissions are halved and PM is reduced by around 70%. High levels of EGR can be applied while maintaining high combustion efficiency, resulting in extremely low NOx potential. Some recent studies have indicated that DPF-equipped diesels emit less nanoparticles than some natural gas vehicles [1]. It must be understood that the ultrafine particles emitted from SI natural gas engines are generally accepted to consist predominantly of VOCs [2], and that lubricating oil is a major contributor. Fitting an oxidation catalyst to the natural gas engine leads to a reduction in nanoparticles emissions in comparison to engines without aftertreatment [2,3,4]. In 2001, the Cummins Westport Plus technology was introduced with the C Gas Plus engine, a popular choice for transit bus applications. This incorporates drive by wire, fully integrated, closed loop electronic controls and a standard oxidation catalyst for all applications. The B Gas Plus and the B Propane Plus engines, with application in shuttle and school buses were launched in 2002 and 2003. The gas-specific oxidation catalyst operates in concert with an optimized ring-pack and liner combination to reduce total particulate mass below 0.01g/bhphr, combat ultrafine particles and control VOC emissions.

Dunn, M

2003-08-24T23:59:59.000Z

357

Heavy-Duty Truck Idle Reduction Technology Demonstations - 2005 Status Report  

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

June 30, 2006 June 30, 2006 Heavy-Duty Truck Idle Reduction Technology Demonstrations 2005 Status Report Fred Wagner Energetics Incorporated NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

358

Biodiesel: The clean, green fuel for diesel engines (fact sheet)  

SciTech Connect

Natural, renewable resources such as vegetable oils and recycled restaurant greases can be chemically transformed into clean-burning biodiesel fuels. As its name implies, biodiesel is like diesel fuel except that it's organically produced. It's also safe for the environment, biodegradable, and produces significantly less air pollution than diesel fuel.

Tyson, K.S.

2000-04-11T23:59:59.000Z

359

Argonne TTRDC - Engines - Emissions Control - Advanced Diesel Particulate  

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

Development of Advanced Diesel Particulate Filtration Systems Development of Advanced Diesel Particulate Filtration Systems The U.S. Environmental Protection Agency regulations require that on-highway diesel vehicles have filtration systems to reduce tail-pipe soot emissions, known as particulate matter (PM). Diesel particulate filtration (DPF) systems are currently the most efficient at directly controlling PM. Argonne researchers, working with Corning, Inc., and Caterpillar, Inc., through a cooperative research and development agreement, are exploiting previously unavailable technology and research results on diesel PM filtration and regeneration processes, aiming to the technology transfer of advanced PM emission control to industry. Argonne's Research In operation of DPF systems, the filtration and regeneration of particulate emissions are the key processes to be controlled for high efficiency. Due to difficulties in accessing the micro-scaled structures of DPF membranes and monitoring particulate filtration and high-temperature thermal processes, however, research has been limited to macroscopic observation for the product.

360

Effect of translucence of engineering ceramics on heat transfer in diesel engines  

DOE Green Energy (OSTI)

This report describes the experimental portion of a broader study undertaken to assess the effects of translucence of ceramic materials used as thermal barrier coatings in diesel engines. In an earlier analytical work a parametric study was performed, varying several radiative properties over ranges typical of engineering ceramics, thereby identifying the most important radiative properties and their impact on in-cylinder heat transfer. In the current study these properties were experimentally determined for several specific zirconia coatings considered for thermal barrier applications in diesel engines. The methodology of this study involved formulation of a model capable of describing radiative transfer through a semitransparent medium as a function of three independent model parameters, ie, absorption coefficient, scattering coefficient and refractive index. For the zirconia-based ceramics investigated in this study, it was concluded that for usual coating thicknesses (1.5--2.5 mm) these ceramics are optically thick and hence, are effective as radiative heat transfer barriers. These ceramics possess high scattering coefficients and low absorption coefficients causing them to be highly reflective (60-80%) in the spectral region where thermal radiation is important. The performance of the investigated ceramics and the mechanism of heat transfer were found to depend on surface condition, specifically on soot deposition. Thus, to insure the optimum thermal barrier operation for either clean or heavily sooted surfaces, a ceramic material with high scattering coefficient provides the best choice.

Wahiduzzaman, S.; Morel, T. (Integral Technologies, Inc., Westmont, IL (United States))

1992-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Effect of translucence of engineering ceramics on heat transfer in diesel engines. Final report  

DOE Green Energy (OSTI)

This report describes the experimental portion of a broader study undertaken to assess the effects of translucence of ceramic materials used as thermal barrier coatings in diesel engines. In an earlier analytical work a parametric study was performed, varying several radiative properties over ranges typical of engineering ceramics, thereby identifying the most important radiative properties and their impact on in-cylinder heat transfer. In the current study these properties were experimentally determined for several specific zirconia coatings considered for thermal barrier applications in diesel engines. The methodology of this study involved formulation of a model capable of describing radiative transfer through a semitransparent medium as a function of three independent model parameters, ie, absorption coefficient, scattering coefficient and refractive index. For the zirconia-based ceramics investigated in this study, it was concluded that for usual coating thicknesses (1.5--2.5 mm) these ceramics are optically thick and hence, are effective as radiative heat transfer barriers. These ceramics possess high scattering coefficients and low absorption coefficients causing them to be highly reflective (60-80%) in the spectral region where thermal radiation is important. The performance of the investigated ceramics and the mechanism of heat transfer were found to depend on surface condition, specifically on soot deposition. Thus, to insure the optimum thermal barrier operation for either clean or heavily sooted surfaces, a ceramic material with high scattering coefficient provides the best choice.

Wahiduzzaman, S.; Morel, T. [Integral Technologies, Inc., Westmont, IL (United States)

1992-04-01T23:59:59.000Z

362

Investigation on Nitric Oxide and Soot of Biodiesel and Conventional Diesel using a Medium Duty Diesel Engine  

E-Print Network (OSTI)

Biodiesel has been suggested as an alternative fuel to the petroleum diesel fuel. It beneficially reduces regulated emission gases, but increases NOx (nitric oxide and nitrogen dioxide) Thus, the increase in NOx is the barrier for potential growth of the biodiesel fuel. In general, NOx formation is dominated by flame temperature. Interestingly, soot can play a role as a heat sink as well as a heat transfer media to high temperature gases. Thus, the cooling effect of soot may change the flame temperature and therefore, NOx emissions. In this study, emphasis is placed on the relationship between soot and NO (Nitric oxide) formation. For the experimental study, a metallic fuel additive is used since barium is known to be effective to suppress soot formation during combustion. The barium additive is applied to #2D (Number 2 diesel fuel) by volume basis: 0.1, 0.25 and 0.5 %-v, and to the palm olein oil by 0.25 %-v. All the tests are carried out in a four-cylinder medium duty diesel engine, 4045 DI diesel engine, manufactured by John Deere. For the analysis, an analytical model is used to estimate combustion temperature, NO concentration and soot emissivity. The results show that NO concentration does not have the expected trade-off relation with soot. Rather, NO concentration is found to be more strongly affected by ambient temperature and combustion characteristics than by soot. The results of the analytical model show the reasonable NO estimation and the improvement on temperature calculation. However, the model is not able to explain the detailed changes of soot emissivity by the different fuels since the emissivity correlation is developed empirically for diesel fuel.

Song, Hoseok

2012-05-01T23:59:59.000Z

363

Prediction of performance and exhaust emissions of a diesel engine fueled with biodiesel produced from waste frying palm oil  

Science Conference Proceedings (OSTI)

Biodiesel is receiving increasing attention each passing day because of its fuel properties and compatibility with the petroleum-based diesel fuel (PBDF). Therefore, in this study, the prediction of the engine performance and exhaust emissions is carried ... Keywords: ANN, Biodiesel, Diesel engine, Emissions, Engine performance

Mustafa Canakci; Ahmet Necati Ozsezen; Erol Arcaklioglu; Ahmet Erdil

2009-07-01T23:59:59.000Z

364

FEASIBILITY STUDY OF THE POTENTIAL USE OF CHEMISTRY BASED EMISSION PREDICTIONS FOR REAL-TIME CONTROL OF MODERN DIESEL ENGINES.  

E-Print Network (OSTI)

. Adding the model to the overall engine and aftertreatment control and diagnostics strategy. "NOx prediction in diesel engines for aftertreatment control," ASME 2003-41196. [5] Aithal SM. 2008-TIME CONTROL OF MODERN DIESEL ENGINES. S. M. Aithal Mathematics and Computer Science Division Argonne National

365

REQUEST BY CUMMINS ENGINE COMPANY, INC., FOR AN ADVANCE WAIVER  

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

CUMMINS ENGINE COMPANY, INC., FOR AN ADVANCE WAIVER CUMMINS ENGINE COMPANY, INC., FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER DEPARTMENT OF ENERGY COOPERATIVE AGREEMENT NO. DE-FC05-00OR22804; DOE WAIVER DOCKIET W(A)-00-021 [ORO-754] Petitioner, Cummins Engine Company, Inc., has made a timely request for an advance waiver to worldwide rights in Subject Inventions made in the course of or under Department of Energy (DOE) Cooperative Agreement No. DE-FC05-00OR22804. The scope of this work is to plan, develop and demonstrate advanced heavy duty diesel engine technologies to improve thermal efficiency and meet EPA proposed 2007 emissions of 0.2 NOx and 0.01 gm PM. This work is sponsored by the Office of Transportation Technologies, Office ol Heavy Vehicle

366

Engineering evaluation of the General Motors (GM) diesel rating and capabilities  

SciTech Connect

K-Reactor`s number one GM diesel (GM-lK) suffered recurrent, premature piston pin bushing failures between July 1990 and January 1991. These failures raised a concern that the engine`s original design capabilities were being exceeded. Were we asking old engines to do too much by powering 1200 kw (continuous) rated electrical generators? Was excessive wear of the piston pin bushings a result of having exceeded the engine`s capabilities (overload), or were the recent failures a direct result of poor quality, poor design, or defective replacement parts? Considering the engine`s overall performance for the past 30 years, during which an engine failure of this nature had never occurred, and the fact that 1200 kw was approximately 50% of the engine`s original tested capability, Reactor Engineering did not consider it likely that an overloaded engine caused bushing failures. What seemed more plausible was that the engine`s failure to perform was caused by deficiencies in, or poor quality of, replacement parts.The following report documents: (1) the results of K-Reactor EDG failure analysis; (2) correlation of P- and C-Reactor GM diesel teardowns; (3) the engine rebuild to blueprint specification; (4) how the engine was determined ready for test; (5) testing parameters that were developed; (6) a summary of test results and test insights; (7) how WSRC determined engine operation was acceptable; (8) independent review of 1200 kw operational data; (9) approval of the engines` 12OOkw continuous rating.

Gross, R.E.

1992-04-01T23:59:59.000Z

367

Methylal and Methylal-Diesel Blended Fuels from Use In Compression-Ignition Engines  

DOE Green Energy (OSTI)

Gas-to-liquids catalytic conversion technologies show promise for liberating stranded natural gas reserves and for achieving energy diversity worldwide. Some gas-to-liquids products are used as transportation fuels and as blendstocks for upgrading crude derived fuels. Methylal (CH{sub 3}-O-CH{sub 2}-O-CH{sub 3}) also known as dimethoxymethane or DMM, is a gas-to-liquid chemical that has been evaluated for use as a diesel fuel component. Methylal contains 42% oxygen by weight and is soluble in diesel fuel. The physical and chemical properties of neat methylal and for blends of methylal in conventional diesel fuel are presented. Methylal was found to be more volatile than diesel fuel, and special precautions for distribution and fuel tank storage are discussed. Steady state engine tests were also performed using an unmodified Cummins 85.9 turbocharged diesel engine to examine the effect of methylal blend concentration on performance and emissions. Substantial reductions of particulate matter emissions h ave been demonstrated 3r IO to 30% blends of methylal in diesel fuel. This research indicates that methylal may be an effective blendstock for diesel fuel provided design changes are made to vehicle fuel handling systems.

Keith D. Vertin; James M. Ohi; David W. Naegeli; Kenneth H. Childress; Gary P. Hagen; Chris I. McCarthy; Adelbert S. Cheng; Robert W. Dibble

1999-05-05T23:59:59.000Z

368

Novel injector techniques for coal-fueled diesel engines. Final report  

DOE Green Energy (OSTI)

This report, entitled ``Novel Injector Techniques for Coal-Fueled Diesel Engines,`` describes the progress and findings of a research program aimed at development of a dry coal powder fuel injector in conjunction with the Thermal Ignition Combustion System (TICS) concept to achieve autoignition of dry powdered coal in a single-cylinder high speed diesel engine. The basic program consisted of concept selection, analysis and design, bench testing and single cylinder engine testing. The coal injector concept which was selected was a one moving part dry-coal-powder injector utilizing air blast injection. Adiabatics has had previous experience running high speed diesel engines on both direct injected directed coal-water-slurry (CWS) fuel and also with dry coal powder aspirated into the intake air. The Thermal Ignition Combustion System successfully ignited these fuels at all speeds and loads without requiring auxiliary ignition energy such as pilot diesel fuel, heated intake air or glow or spark plugs. Based upon this prior experience, it was shown that the highest efficiency and fastest combustion was with the dry coal, but that the use of aspiration of coal resulted in excessive coal migration into the engine lubrication system. Based upon a desire of DOE to utilize a more modern test engine, the previous naturally-aspirated Caterpillar model 1Y73 single cylinder engine was replaced with a turbocharged (by use of shop air compressor and back pressure control valve) single cylinder version of the Cummins model 855 engine.

Badgley, P.R.

1992-09-01T23:59:59.000Z

369

An Evolutionary Algorithm to design Diesel Engines T. Donateo, D. Laforgia  

E-Print Network (OSTI)

to be achieved. A typical case is the contemporary reduction of soot and NOx emissions in a diesel engine. All are very close to the origin of the plot. · On the contrary, a strong reduction of NOx can be obtained gases. The competitive goals to be achieved in engine optimization are the reduction of emission levels

Coello, Carlos A. Coello

370

Reactivity Controlled Compression Ignition (RCCI) Combustion on a Multi-Cylinder Light-Duty Diesel Engine  

Science Conference Proceedings (OSTI)

Reactivity controlled compression ignition is a low-temperature combustion technique that has been shown, both in computational fluid dynamics modeling and single-cylinder experiments, to obtain diesel-like efficiency or better with ultra-low nitrogen oxide and soot emissions, while operating primarily on gasoline-like fuels. This paper investigates reactivity controlled compression ignition operation on a four-cylinder light-duty diesel engine with production-viable hardware using conventional gasoline and diesel fuel. Experimental results are presented over a wide speed and load range using a systematic approach for achieving successful steady-state reactivity controlled compression ignition combustion. The results demonstrated diesel-like efficiency or better over the operating range explored with low engine-out nitrogen oxide and soot emissions. A peak brake thermal efficiency of 39.0% was demonstrated for 2600 r/min and 6.9 bar brake mean effective pressure with nitrogen oxide emissions reduced by an order of magnitude compared to conventional diesel combustion operation. Reactivity controlled compression ignition emissions and efficiency results are compared to conventional diesel combustion operation on the same engine.

Curran, Scott [ORNL; Hanson, Reed M [ORNL; Wagner, Robert M [ORNL

2012-01-01T23:59:59.000Z

371

REQUEST BY CATERPILLAR INC. FOR AN ADVANCE WAIVER OF DOMESTIC...  

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

and marketing of medium and heavy duty diesel engines, gas engines, and industrial gas turbine engines. Caterpillar is a global company with primarily U.S. based...

372

Engine testing of ceramic cam-roller followers  

DOE Green Energy (OSTI)

For several years, DDC has been developing monolithic ceramic heat engine components. One of the components, developed for an application in our state-of-the-art on-highway, heavy-duty diesel engine, the Series 60, is a silicon nitride cam-roller follower. Prior to starting this program, each valve train component in the Series 60 was considered for conversion to a ceramic material. Many advantages and disadvantages (benefits and risks) were considered. From this effort, one component was selected, the cam-roller follower. Using a system design approach, a ceramic cam-roller follower offered functional improvement at a reasonable cost. The purpose of the project was to inspect and test 100 domestically produced silicon nitride cam-roller followers built to the requirements of the DDC series 60 engine.

Kalish, Y. (Detroit Diesel Corp., MI (United States))

1992-04-01T23:59:59.000Z

373

Engine testing of ceramic cam-roller followers. Final report  

DOE Green Energy (OSTI)

For several years, DDC has been developing monolithic ceramic heat engine components. One of the components, developed for an application in our state-of-the-art on-highway, heavy-duty diesel engine, the Series 60, is a silicon nitride cam-roller follower. Prior to starting this program, each valve train component in the Series 60 was considered for conversion to a ceramic material. Many advantages and disadvantages (benefits and risks) were considered. From this effort, one component was selected, the cam-roller follower. Using a system design approach, a ceramic cam-roller follower offered functional improvement at a reasonable cost. The purpose of the project was to inspect and test 100 domestically produced silicon nitride cam-roller followers built to the requirements of the DDC series 60 engine.

Kalish, Y. [Detroit Diesel Corp., MI (United States)

1992-04-01T23:59:59.000Z

374

Assessing economic impacts of clean diesel engines. Phase 1 report: U.S.- or foreign-produced clean diesel engines for selected light trucks  

DOE Green Energy (OSTI)

Light trucks' share of the US light vehicle market rose from 20% in 1980 to 41% in 1996. By 1996, annual energy consumption for light trucks was 6.0 x 10{sup 15} Btu (quadrillion Btu, or quad), compared with 7.9 quad for cars. Gasoline engines, used in almost 99% of light trucks, do not meet the Corporate Average Fuel Economy (CAFE) standards. These engines have poor fuel economy, many getting only 10--12 miles per gallon. Diesel engines, despite their much better fuel economy, had not been preferred by US light truck manufacturers because of problems with high NO{sub x} and particulate emissions. The US Department of Energy, Office of Heavy Vehicle Technologies, has funded research projects at several leading engine makers to develop a new low-emission, high-efficiency advanced diesel engine, first for large trucks, then for light trucks. Recent advances in diesel engine technology may overcome the NO{sub x} and particulate problems. Two plausible alternative clean diesel (CD) engine market penetration trajectories were developed, representing an optimistic case (High Case) and an industry response to meet the CAFE standards (CAFE Case). However, leadership in the technology to produce a successful small, advanced diesel engine for light trucks is an open issue between U.S. and foreign companies and could have major industry and national implications. Direct and indirect economic effects of the following CD scenarios were estimated by using the Standard and Poor's Data Resources, Inc., US economy model: High Case with US Dominance, High Case with Foreign Dominance, CAFE Case with US Dominance, and CAFE Case with Foreign Dominance. The model results demonstrate that the economic activity under each of the four CD scenarios is higher than in the Base Case (business as usual). The economic activity is highest for the High Case with US dominance, resulting in maximum gains in such key indicators as gross domestic product, total civilian employment, and federal government surplus. Specifically, the cumulative real gross domestic product surplus over the Base Case during the 2000--2022 period is about $56 x 10{sup 9} (constant 1992 dollars) under this high US dominance case. In contrast, the real gross domestic product gains under the high foreign dominance case would be only about half of the above gains with US dominance.

Teotia, A.P.; Vyas, A.D.; Cuenca, R.M.; Stodolsky, F.

1999-11-02T23:59:59.000Z

375

Research on Fault Diagnosis of Marine Diesel Engine Based on Grey Relational Analysis and Kernel Fuzzy C-means Clustering  

Science Conference Proceedings (OSTI)

According to the problem of small samples and nonlinear feature in fault diagnosis of marine diesel engine, comprehensively using the methods of grey relational analysis and kernel fuzzy c-means clustering, a method solving fault diagnosis of marine ... Keywords: marine diesel engine, fault diagnosis, grey relational analysis, kernel fuzzy c-means clustering

Xiuyan Peng; Yanyou Chai; Yanyou Chai; Liufeng Xu; Xinjiang Man

2012-01-01T23:59:59.000Z

376

Update on Modeling for Effective Diesel Engine Aftertreatment Implementation - Master Plan, Status and Critical Needs  

DOE Green Energy (OSTI)

An integrated diesel engine-aftertreatment-vehicle system is extremely complex with numerous interacting variables and an unlimited number of control options. An experimental approach to develop an optimized viable system is tedious, if at all possible. Sophisticated component, subsystem and integrated simulation tools offer an excellent option of a virtual lab approach to the development of such a complex system. A viable and robust diesel engine aftertreatment system can thus be developed within optimum time and resources when this virtual simulation is integrated with selective hardware-based testing.

Bolton, B.; Fan, X.; Hakim, N.; Sisken, K.; Zhang, H.

2002-08-25T23:59:59.000Z

377

Evaluation of fuel consumption potential of medium and heavy duty vehicles through modeling and simulation.  

SciTech Connect

The main objective of this report is to provide quantitative data to support the Committee in its task of establishing a report to support rulemaking on medium- and heavy-duty fuel efficiency improvement. In particular, it is of paramount importance for the Committee to base or illustrate their conclusions on established models and actual state-of-the art data. The simulations studies presented in the report have been defined and requested by the members of the National Academy committee to provide quantitative inputs to support their recommendations. As such, various technologies and usage scenarios were considered for several applications. One of the objective is to provide the results along with their associated assumptions (both vehicle and drive cycles), information generally missing from public discussions on literature search. Finally, the advantages and limitations of using simulation will be summarized. The study addresses several of the committee tasks, including: (1) Discussion of the implication of metric selection; (2) Assessing the impact of existing technologies on fuel consumption through energy balance analysis (both steady-state and standard cycles) as well as real world drive cycles; and (3) Impact of future technologies, both individually and collectively.

Delorme, A.; Karbowski, D.; Sharer, P.; Energy Systems

2010-03-31T23:59:59.000Z

378

Natural Gas as a Future Fuel for Heavy-Duty Vehicles  

DOE Green Energy (OSTI)

In addition to their significant environmental impacts, medium-duty and heavy-duty (HD) vehicles are high volume fuel users. Development of such vehicles, which include transit buses, refuse trucks, and HD Class 6-8 trucks, that are fueled with natural gas is strategic to market introduction of natural gas vehicles (NGV). Over the past five years the Department of Energy's (DOE) Office of Heavy Vehicle Technologies (OHVT) has funded technological developments in NGV systems to support the growth of this sector in the highly competitive transportation market. The goals are to minimize emissions associated with NGV use, to improve on the economies of scale, and to continue supporting the testing and safety assessments of all new systems. This paper provides an overview of the status of major projects under a program supported by DOE/OHVT and managed by Brookhaven National Laboratory. The discussion focuses on the program's technical strategy in meeting specific goals proposed by the N GV industry and the government. Relevant projects include the development of low-cost fuel storage, fueling infrastructure, and HD vehicle applications.

Wai-Lin Litzke; James Wegrzyn

2001-05-14T23:59:59.000Z

379

Progress in Understanding the Toxicity of Gasoline and Diesel Engine Exhaust Emissions  

DOE Green Energy (OSTI)

To help guide heavy vehicle engine, fuel, and exhaust after-treatment technology development, the U.S. Department of Energy and the Lovelace Respiratory Research Institute are conducting research not addressed elsewhere on aspects of the toxicity of particulate engine emissions. Advances in these technologies that reduce diesel particulate mass emissions may result in changes in particle composition, and there is concern that the number of ultrafine (<0.1 micron) particles may increase. All present epidemiological and laboratory data on the toxicity of diesel emissions were derived from emissions of older-technology engines. New, short-term toxicity data are needed to make health-based choices among diesel technologies and to compare the toxicity of diesel emissions to those of other engine technologies. This research program has two facets: (1) development and use of short-term in vitro and in vivo toxicity assays for comparing the toxicities of gasoline and diesel exhaust emissions; and (2) determination of the disposition of inhaled ultrafine particles deposited in the lung. Responses of cultured cells, cultured lung slices, and rodent lungs to various types of particles were compared to develop an improved short-term toxicity screening capability. To date, chemical toxicity indicators of cultured human A549 cells and early inflammatory and cytotoxic indicators of rat lungs have given the best distinguishing capability. A study is now underway to determine the relative toxicities of exhaust samples from in-use diesel and gasoline engines. The samples are being collected under the direction of the National Renewable Energy Laboratory with support from DOE's Office of Heavy Vehicle Technologies. The ability to generate solid ultrafine particles and to trace their movement in the body as particles and soluble material was developed. Data from rodents suggest that ultrafine particles can move from the lung to the liver in particulate form. The quantitative disposition of inhaled ultrafine particles will be determined in rodents and nonhuman primates.

Kristen J. Nikula; Gregory L. Finch; Richard A. Westhouse; JeanClare Seagrave; Joe L. Mauderly; Doughlas R. Lawson; Michael Gurevich

1999-04-26T23:59:59.000Z

380

Wear mechanism and wear prevention in coal-fueled diesel engines  

DOE Green Energy (OSTI)

Over the past several years, interest has arisen in the development of coal-fired diesel engines for the purpose of efficiently utilizing the extensive coal reserves in the United States, and therefore reducing dependence on foreign oil. One process, which is being considered for use in producing clean coal fuel products involves mild gasification. This process produces by-products which can be further refined and, when blended with neat diesel fuel, used as an engine fuel. The purpose of this task was to test a blend of this coal liquid and diesel fuel (referred to as coal-lite) in an engine, and determine if any detrimental results were observed. This was done by performing a back-to-back performance and emission test of neat diesel fuel and the coal-lite fuel, followed by a 500-hour test of the coal-lite fuel, and completed by a back-to-back performance and emission test of the coal-lite fuel and neat diesel fuel.

Wakenell, J.F.; Fritz, S.G.; Schwalb, J.A.

1991-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Wear mechanism and wear prevention in coal-fueled diesel engines. Task 7, Extended wear testing  

DOE Green Energy (OSTI)

Over the past several years, interest has arisen in the development of coal-fired diesel engines for the purpose of efficiently utilizing the extensive coal reserves in the United States, and therefore reducing dependence on foreign oil. One process, which is being considered for use in producing clean coal fuel products involves mild gasification. This process produces by-products which can be further refined and, when blended with neat diesel fuel, used as an engine fuel. The purpose of this task was to test a blend of this coal liquid and diesel fuel (referred to as coal-lite) in an engine, and determine if any detrimental results were observed. This was done by performing a back-to-back performance and emission test of neat diesel fuel and the coal-lite fuel, followed by a 500-hour test of the coal-lite fuel, and completed by a back-to-back performance and emission test of the coal-lite fuel and neat diesel fuel.

Wakenell, J.F.; Fritz, S.G.; Schwalb, J.A.

1991-07-01T23:59:59.000Z

382

Wear mechanism and wear prevention in coal-fueled diesel engines  

DOE Green Energy (OSTI)

The overall objective of this program is to develop the diesel engine and lubricant system design approach that has the highest probability for commercial acceptance. Several specific objectives can also be identified. These objectives include: Definition of the dominant wear mechanisms prevailing in coal-fueled diesel engines; Definition of the specific effect of each coal-related lube oil contaminant; Determination of the potential of traditional engine lubrication design approaches to either solve or mitigate the effects of the coal related lube oil contaminants; Evaluation of several different engine design approaches aimed specifically at preventing lube oil contamination or preventing damage due to lube oil contamination; and Presentation of the engine/lubricant system design determined to have the most potential.

Not Available

1990-06-20T23:59:59.000Z

383

Pages that link to "BPM Diesel Engineering" | Open Energy Information  

Open Energy Info (EERE)

Engineering. Retrieved from "http:en.openei.orgwikiSpecial:WhatLinksHereBPMDieselEngineering" Special pages About us Disclaimers Energy blogs Developer services OpenEI...

384

Attenuating Diesel Engine Emissions | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Attenuating Diesel Attenuating Diesel Engine Emissions Laboratory Policy and Evaluation (LPE) LPE Home Staff M&O Contracts SC Laboratory Appraisal Process Laboratory Planning Process Work for Others in the Office of Science Laboratory Directed Research and Development (LDRD) DOE's Philosophy on LDRD Frequently Asked Questions Success Stories Brochures Additional Information LDRD Program Contacts Technology Transfer DOE National Laboratories Contact Information Laboratory Policy and Evaluation U.S. Department of Energy SC-32/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5447 F: (202) 586-3119 Success Stories Attenuating Diesel Engine Emissions Print Text Size: A A A RSS Feeds FeedbackShare Page Early this decade, Argonne chemists developed a special catalyst that can

385

The Detroit Diesel DELTA Engine for Light Trucks and SUVs - Year 2000 Update  

DOE Green Energy (OSTI)

Detroit Diesel Corporation (DDC) is developing the DELTA 4.0L V6 engine, specifically for the North American light truck market. This market poses unique requirements for a diesel engine, necessitating a clean sheet engine design. DELTA was developed from a clean sheet of paper, with the first engine firing just 228 days later. The process began with a Quality Function Deployment (QFD) analysis, which prioritized the development criteria. The development process integrated a co-located, fully cross-functional team. Suppliers were fully integrated and maintained on-site representation. The first demonstration vehicle moved under its own power 12 weeks after the first engine fired. It was demonstrated to the automotive press 18 days later. DELTA has repeatedly demonstrated its ability to disprove historical North American diesel perceptions and compete directly with gasoline engines. This paper outlines the Generation 0.0 development process and briefly defines the engine. A brief indication of the Generation 0.5 development status is given.

Nabil S. Hakim; Charles E. Freese; Stanley P. Miller

2000-06-19T23:59:59.000Z

386

Fabrication of small-orifice fuel injectors for diesel engines.  

DOE Green Energy (OSTI)

Diesel fuel injector nozzles with spray hole diameters of 50-75 {micro}m have been fabricated via electroless nickel plating of conventionally made nozzles. Thick layers of nickel are deposited onto the orifice interior surfaces, reducing the diameter from {approx}200 {micro}m to the target diameter. The nickel plate is hard, smooth, and adherent, and covers the orifice interior surfaces uniformly.

Woodford, J. B.; Fenske, G. R.

2005-04-08T23:59:59.000Z

387

Proper Oil Sampling Intervals and Sample Collection Techniques Gasoline/Diesel/Natural Gas Engines  

E-Print Network (OSTI)

Proper Oil Sampling Intervals and Sample Collection Techniques Gasoline/Diesel/Natural Gas Engines: · Oil samples can be collected during oil changes. Follow manufacturers recommendations on frequency (hours, mileage, etc) of oil changes. · Capture a sample from the draining oil while the oil is still hot

388

STATEMENT OF CONSIDERATIONS REQUEST BY CATERPILLAR, INC. FOR...  

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

and marketing of medium and heavy duty diesel engines, gas engines, and industrial gas turbines. This, coupled with Caterpillar's cost sharing, clearly demonstrates the...

389

ADVANCED DIESEL ENGINE AND AFTERTREATMENT TECHNOLOGY DEVELOPMENT FOR TIER 2 EMISSIONS  

DOE Green Energy (OSTI)

Advanced diesel engine and aftertreatment technologies have been developed for multiple engine and vehicle platforms. Tier 2 (2007 and beyond) emissions levels have been demonstrated for a light truck vehicle over a FTP-75 test cycle on a vehicle chassis dynamometer. These low emissions levels are obtained while retaining the fuel economy advantage characteristic of diesel engines. The performance and emissions results were achieved by integrating advanced combustion strategies (CLEAN Combustion{copyright}) with prototype aftertreatment systems. CLEAN Combustion{copyright} allows partial control of exhaust species for aftertreatment integration in addition to simultaneous NOx and PM reduction. Analytical tools enabled the engine and aftertreatment sub-systems development and system integration. The experimental technology development methodology utilized a range of facilities to streamline development of the eventual solution including utilization of steady state and transient dynamometer test-beds to simulate chassis dynamometer test cycles.

Aneja, R.; Bolton, B; Oladipo, A; Pavlova-MacKinnon, Z; Radwan, A

2003-08-24T23:59:59.000Z

390

Fast-regenerable sulfur dioxide adsorbents for diesel engine emission control  

Science Conference Proceedings (OSTI)

Disclosed herein are sorbents and devices for controlling sulfur oxides emissions as well as systems including such sorbents and devices. Also disclosed are methods for making and using the disclosed sorbents, devices and systems. In one embodiment the disclosed sorbents can be conveniently regenerated, such as under normal exhaust stream from a combustion engine, particularly a diesel engine. Accordingly, also disclosed are combustion vehicles equipped with sulfur dioxide emission control devices.

Li, Liyu [Richland, WA; King, David L [Richland, WA

2011-03-15T23:59:59.000Z

391

Development of Innovative Combustion Processes for a Direct-Injection Diesel Engine  

DOE Green Energy (OSTI)

In support of the Partnership for a New Generation Vehicle (PNGV) emissions and fuel economy goals, a small-bore, high-speed, direct-injection (HSDI) diesel facility in which to conduct research into the physics of the combustion process relevant to these engines has been developed. The characteristics of this facility are described, and the motivation for selecting these characteristics and their relation to high efficiency, low-emission HSDI engine technology is discussed.

John Dec; Paul Miles

1999-01-01T23:59:59.000Z

392

Diesel fuel component contribution to engine emissions and performance. Final report  

DOE Green Energy (OSTI)

Contemporary diesel fuel is a blend of several refinery streams chosen to meet specifications. The need to increase yield of transportation fuel from crude oil has resulted in converting increased proportions of residual oil to lighter products. This conversion is accomplished by thermal, catalytic, and hydrocracking of high molecular weight materials rich in aromatic compounds. The current efforts to reformulate California diesel fuel for reduced emissions from existing engines is an example of another driving force affecting refining practice: regulations designed to reduce exhaust emissions. Although derived from petroleum crude oil, reformulated diesel fuel is an alternative to current specification-grade diesel fuel, and this alternative presents opportunities and questions to be resolved by fuel and engine research. Various concerned parties have argued that regulations for fuel reformulation have not been based on an adequate data base. Despite numerous studies, much ambiguity remains about the relationship of exhaust parameters to fuel composition, particularly for diesel fuel. In an effort to gather pertinent data, the automobile industry and the oil refiners have joined forces in the Air Quality Improvement Research Program (AUTO/OIL) to address this question for gasoline. The objective of that work is to define the relationship between gasoline composition and the magnitude and composition of the exhaust emissions. The results of the AUTO/OEL program will also be used, along with other data bases, to define the EPA {open_quotes}complex model{close_quotes} for reformulated gasolines. Valuable insights have been gained for compression ignition engines in the Coordinating Research Council`s VE-1 program, but no program similar to AUTO/OIL has been started for diesel fuel reformulation. A more detailed understanding of the fuel/performance relationship is a readily apparent need.

Erwin, J.; Ryan, T.W. III; Moulton, D.S. [Southwest Research Institute, San Antonio, TX (United States)] [Southwest Research Institute, San Antonio, TX (United States)

1994-11-01T23:59:59.000Z

393

An indirect sensing technique for diesel fuel quantity control. Technical progress report, October 1--December 31, 1998  

DOE Green Energy (OSTI)

Work has proceeded intensely with the objective of completing the commercial prototype system prior to the end of the contract period. At the time of this report, testing and refinement of the commercial version of the system has not been completed. During this reporting period, several major milestones were reached and many significant lessons were learned. These are described. The experimental retrofit system has achieved all performance objectives in engine dynamometer tests. The prototype commercial version of the system will begin demonstration service on the first of several Santa Maria Area Transit (SMAT) transit buses on February 1, 1999. The commercial system has been redesignated the Electronic Diesel Smoke Reduction System (EDSRS) replacing the original internal pseudonym ADSC. The focus has been narrowed to a retrofit product suitable for installation on existing mechanically-governed diesel engines. Included in this potential market are almost all diesel-powered passenger cars and light trucks manufactured prior to the introduction of the most recent clean diesel engines equipped with particulate traps and electronic controls. Also included are heavy-duty trucks, transit vehicles, school buses, and agricultural equipment. This system is intended to prevent existing diesel engines from overfueling to the point of visible particulate emissions (smoke), while allowing maximum smoke-limited torque under all operating conditions. The system employs a microcontroller and a specialized exhaust particulate emission sensor to regulate the maximum allowable fuel quantity via an adaptive throttle-limit map. This map specifies a maximum allowable throttle position as a function of engine speed, turbocharger boost pressure and engine coolant temperature. The throttle position limit is mechanized via a servo actuator inserted in the throttle cable leading to the injection pump.

MacCarley, C.A.

1999-01-26T23:59:59.000Z

394

Comparative urban drive cycle simulations of light-duty hybrid vehicles with gasoline or diesel engines and emissions controls  

SciTech Connect

Electric hybridization is a very effective approach for reducing fuel consumption in light-duty vehicles. Lean combustion engines (including diesels) have also been shown to be significantly more fuel efficient than stoichiometric gasoline engines. Ideally, the combination of these two technologies would result in even more fuel efficient vehicles. However, one major barrier to achieving this goal is the implementation of lean-exhaust aftertreatment that can meet increasingly stringent emissions regulations without heavily penalizing fuel efficiency. We summarize results from comparative simulations of hybrid electric vehicles with either stoichiometric gasoline or diesel engines that include state-of-the-art aftertreatment emissions controls for both stoichiometric and lean exhaust. Fuel consumption and emissions for comparable gasoline and diesel light-duty hybrid electric vehicles were compared over a standard urban drive cycle and potential benefits for utilizing diesel hybrids were identified. Technical barriers and opportunities for improving the efficiency of diesel hybrids were identified.

Gao, Zhiming [ORNL; Daw, C Stuart [ORNL; Smith, David E [ORNL

2013-01-01T23:59:59.000Z

395

SENSITIZATION AND EXACERBATION OF ALLERGIC DISEASES BY DIESEL ENGINE PARTICLES  

DOE Green Energy (OSTI)

Most studies of the health effects of diesel exhaust have focused on the controversial issue of its role in cancer. However, recently the role of combustion products such as diesel exhaust particles (DEP) in modulating the immune response has garnered much attention. In particular the effect of DEP on allergic and asthmatic diseases has been the focus of many studies. A link between industrialization and allergic disease has long been presumed. Indeed, only 50 years after the first recorded reported case of allergy in 1819, Charles Blackely wrote that the ''hay-fever epidemic'' was associated with the movement of people from the country into the cities. Ishizaki et al. (1987) found that people in Japan living on busy roads lined with cedar trees have more allergies to cedar than residents living on similar streets with much less traffic. Since that time other epidemiological studies have reported similar findings. Kramer, et al., showed that hay fever is greater in residential areas with heavy truck traffic, while Weiland, et al., reported that allergic symptoms correlate with the distance of residences to roads with heavy traffic.

Diaz-Sanchez, David

2000-08-20T23:59:59.000Z

396

In-cylinder pressure characteristics of a CI engine using blends of diesel fuel and methyl esters of beef tallow  

Science Conference Proceedings (OSTI)

A Cummins N14-410 diesel engine was operated on 12 fuels produced by blending methyl tallowate, methyl soyate, and ethanol with no. 2 diesel fuel. Engine in-cylinder pressure data were used to evaluate engine performance. Peak cylinder pressures for each fuel blend at all engine speeds were lower than peak pressure for diesel fuel with the exception of the 80% diesel, 13% methyl tallowate, and 7% ethanol; and the 80% diesel, 6.5% methyl tallowate, 6.5% methyl soyate and 7% ethanol blends. The indicated mean effective pressure (IMEP) values for all fuel blends were less than for diesel fuel. The differences in IMEP values correlated with differences in power output of the engine. Similarly, maximum rates of pressure rise for most fuel blends were less than for diesel fuel. It was concluded that the fuel blends used in this study would have no detrimental long-term effects on engine performance, wear, and knock. 6 refs., 4 figs., 7 tabs.

Ali, Y.; Hanna, M.A.; Borg, J.E. [Univ. of Nebraska, Lincoln, NE (United States)

1996-05-01T23:59:59.000Z

397

Measurement of Fuel Dilution of Oil in a Diesel Engine using Laser-Induced Fluorescence Spectroscopy  

DOE Green Energy (OSTI)

A technique for measuring the fuel dilution of oil in a diesel engine is presented. Fuel dilution can occur when advanced in-cylinder fuel injection techniques are employed for the purpose of producing rich exhaust for lean NOx trap catalyst regeneration. Laser-induced fluorescence (LIF) spectroscopy is used to monitor the oil in a Mercedes 1.7-liter engine operated on a dynamometer platform. A fluorescent dye suitable for use in diesel fuel and oil systems is added to the engine fuel. The LIF spectra are monitored to detect the growth of the dye signal relative to the background fluorescence of the oil; fuel mass concentration is quantified based on a known sample set. The technique was implemented with fiber optic probes which can be inserted at various points in the oil system of the engine. A low cost 532-nm laser diode was used for excitation of the fluorescence. Measurements of fuel dilution of oil are presented for various in-cylinder injection strategies for rich operation of the diesel engine. Rates of fuel dilution increase for all strategies relative to normal lean operation, and higher fuel dilution rates are observed when extra fuel injection occurs later in the combustion cycle when fuel penetration into the cylinder wall oil film is more likely.

Parks, II, James E [ORNL; Partridge Jr, William P [ORNL

2007-01-01T23:59:59.000Z

398

Diesel Vehicles  

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

Vehicles Vehicles Audi A3 Diesel vehicles may be making a comeback. Diesel engines are more powerful and fuel-efficient than similar-sized gasoline engines (about 30-35% more fuel efficient). Plus, today's diesel vehicles are much improved over diesels of the past. Better Performance Improved fuel injection and electronic engine control technologies have Increased power Improved acceleration Increased efficiency New engine designs, along with noise- and vibration-damping technologies, have made them quieter and smoother. Cold-weather starting has been improved also. Cleaner Mercedes ML320 BlueTEC Today's diesels must meet the same emissions standards as gasoline vehicles. Advances in engine technologies, ultra-low sulfur diesel fuel, and improved exhaust treatment have made this possible.

399

Coal-fueled high-speed diesel engine development  

DOE Green Energy (OSTI)

The objectives of this program are to study combustion feasibility by running Series 149 engine tests at high speeds with a fuel injection and combustion system designed for coal-water-slurry (CWS). The following criteria will be used to judge feasibility: (1) engine operation for sustained periods over the load range at speeds from 600 to 1900 rpm. The 149 engine for mine-haul trucks has a rated speed of 1900 rpm; (2) reasonable fuel economy and coal burnout rate; (3) reasonable cost of the engine design concept and CWS fuel compared to future oil prices.

Not Available

1991-11-01T23:59:59.000Z

400

Changes related to "BPM Diesel Engineering" | Open Energy Information  

Open Energy Info (EERE)

period. Retrieved from "http:en.openei.orgwikiSpecial:RecentChangesLinkedBPMDieselEngineering" Atom Special pages About us Disclaimers Energy blogs Developer services...

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Plant Engineering: Storage and Use of Low-Concentration (5%) Biodiesel Blends in Nuclear Plant Emergency Diesel Generators  

Science Conference Proceedings (OSTI)

The potential for biodiesel to be found in diesel fuel for emergency diesel generators (EDGs) is greatly increased since ASTM approved the allowance of up to 5 volume percent biodiesel (B5) in commercial diesel covered by ASTM D975. Although B5 is approved for use by all major diesel engine manufacturers, little is known about possible problems that could be encountered by utilities with EDGs. This report is an addendum to previously published Electric Power Research Institute (EPRI) report 1021071. It i...

2011-03-29T23:59:59.000Z

402

Plant Support Engineering: Storage and Use of Low Concentration (5%) Biodiesel Blends in Nuclear Plant Emergency Diesel Generators  

Science Conference Proceedings (OSTI)

The potential for biodiesel to be found in diesel fuel for emergency diesel generators (EDGs) is greatly increased since the American Society for Testing and Materials (ASTM) approved the allowance of up to 5 volume percent (vol%) biodiesel (B5) in commercial diesel covered by ASTM D975. While B5 is approved for use by all major diesel engine manufacturers, little is known about possible problems that could be encountered by utilities with EDGs. This report contains the findings from an extensive literat...

2010-12-03T23:59:59.000Z

403

In-Use and Vehicle Dynamometer Evaluation and Comparison of Class 7 Hybrid Electric and Conventional Diesel Delivery Trucks  

SciTech Connect

This study compared fuel economy and emissions between heavy-duty hybrid electric vehicles (HEVs) and equivalent conventional diesel vehicles. In-use field data were collected from daily fleet operations carried out at a FedEx facility in California on six HEV and six conventional 2010 Freightliner M2-106 straight box trucks. Field data collection primarily focused on route assessment and vehicle fuel consumption over a six-month period. Chassis dynamometer testing was also carried out on one conventional vehicle and one HEV to determine differences in fuel consumption and emissions. Route data from the field study was analyzed to determine the selection of dynamometer test cycles. From this analysis, the New York Composite (NYComp), Hybrid Truck Users Forum Class 6 (HTUF 6), and California Air Resource Board (CARB) Heavy Heavy-Duty Diesel Truck (HHDDT) drive cycles were chosen. The HEV showed 31% better fuel economy on the NYComp cycle, 25% better on the HTUF 6 cycle and 4% worse on the CARB HHDDT cycle when compared to the conventional vehicle. The in-use field data indicates that the HEVs had around 16% better fuel economy than the conventional vehicles. Dynamometer testing also showed that the HEV generally emitted higher levels of nitric oxides than the conventional vehicle over the drive cycles, up to 77% higher on the NYComp cycle (though this may at least in part be attributed to the different engine certification levels in the vehicles tested). The conventional vehicle was found to accelerate up to freeway speeds over ten seconds faster than the HEV.

Burton, J.; Walkowicz, K.; Sindler, P.; Duran, A.

2013-10-01T23:59:59.000Z

404

Biphase turbine bottoming cycle for a diesel engine  

SciTech Connect

Application of a two-phase turbine system to waste heat recovery was examined. Bottoming cycle efficiencies ranging from 15 to 30% were calculated for a 720/sup 0/F diesel exhaust temperature. A single stage demonstration unit, designed for non-toxic fluids (water and DowTherm A) and for atmospheric seals and bearings, had a cycle efficiency of 23%. The net output power was 276 hp at 8,100 rpm, increasing the total shaft power from 1,800 hp for the diesel alone, to 2,076 hp for the combined system. A four stage organic turbine, for the same application, had a rotational speed of 14,700 rpm while a four stage steam turbine had 26,000 rpm. Fabrication drawings were prepared for the turbine and nozzle. The major improvement leading to higher cycle efficiency and lower turbine rpm was found to be the use of a liquid component with lower sensible heat. A reduction in capital cost was found to result from the use of a contact heat exchanger instead of tube-fin construction. The cost for a contact heat exchanger was only $35-52/kWe compared to $98/kWe for a tube-fin heat exchanger. Design drawings and materials list were prepared. A program resulting in the demonstration of a two-phase bottoming system was planned and the required cost estimated. The program would result in a feasibility test of the nozzle and turbine at the end of the first year, a laboratory performance test of the bottoming system by the end of the second year and a field demonstration test and laboratory endurance test of the bottoming system during the third year. The blowdown test rig for the first year's program and test turbine were designed.

Ahmad, S.; Hays, L.

1977-02-15T23:59:59.000Z

405

Biodiesel Emissions Testing with a Modern Diesel Engine - Equipment Only: Cooperative Research and Development Final Report, CRADA Number CRD-10-399  

DOE Green Energy (OSTI)

To evaluate the emissions and performance impact of biodiesel in a modern diesel engine equipped with a diesel particulate filter. This testing is in support of the Non-Petroleum Based Fuels (NPBF) 2010 Annual Operating Plan (AOP).

Williams, A.

2013-06-01T23:59:59.000Z

406

Engineering evaluation of the General Motors (GM) diesel rating and capabilities  

SciTech Connect

K-Reactor's number one GM diesel (GM-lK) suffered recurrent, premature piston pin bushing failures between July 1990 and January 1991. These failures raised a concern that the engine's original design capabilities were being exceeded. Were we asking old engines to do too much by powering 1200 kw (continuous) rated electrical generators Was excessive wear of the piston pin bushings a result of having exceeded the engine's capabilities (overload), or were the recent failures a direct result of poor quality, poor design, or defective replacement parts Considering the engine's overall performance for the past 30 years, during which an engine failure of this nature had never occurred, and the fact that 1200 kw was approximately 50% of the engine's original tested capability, Reactor Engineering did not consider it likely that an overloaded engine caused bushing failures. What seemed more plausible was that the engine's failure to perform was caused by deficiencies in, or poor quality of, replacement parts.The following report documents: (1) the results of K-Reactor EDG failure analysis; (2) correlation of P- and C-Reactor GM diesel teardowns; (3) the engine rebuild to blueprint specification; (4) how the engine was determined ready for test; (5) testing parameters that were developed; (6) a summary of test results and test insights; (7) how WSRC determined engine operation was acceptable; (8) independent review of 1200 kw operational data; (9) approval of the engines' 12OOkw continuous rating.

Gross, R.E.

1992-04-01T23:59:59.000Z

407

Synergies of PCCI-Type Combustion and Lean NOx Trap Catalysis for Diesel Engines  

Science Conference Proceedings (OSTI)

It is widely recognized that future NOx and PM emission targets for diesel engines cannot be met solely via advanced combustion over the full engine drive cycle. Therefore some combination of advanced combustion methodology with an aftertreatment technology will be required. In this study, NOx reduction, fuel efficiency, and regeneration performance of lean NOx trap (LNT) were evaluated for four operating conditions. The combustion approaches included baseline engine operation with and without EGR, two exhaust enrichment methods (post injection and delayed injection), and one advanced combustion mode to enable high efficiency clean combustion (HECC). A 1.7 liter 4-cylinder diesel engine was operated under five conditions, which represent key interest points for light-duty diesel operation. At the low load setting the exhaust temperature was too low to enable LNT regeneration and oxidation; however, HECC (low NOx) was achievable. HECC was also reached under more moderate loads and the exhaust temperatures were high enough to enable even further NOx reductions by the LNT. At high loads HECC becomes difficult but the LNT performance improves and acceptable regeneration can be met with enrichment methodologies.

Parks, II, James E [ORNL; Prikhodko, Vitaly Y [ORNL; Kass, Michael D [ORNL; Huff, Shean P [ORNL

2008-01-01T23:59:59.000Z

408

UNIVERSITY OF HOUSTON CULLEN COLLEGE OF ENGINEERING  

E-Print Network (OSTI)

, and to meet these standards. The development of retrofit technologies is especially critical given studies of monolith catalysts, and kinetic and reactor modeling to develop predictive, first and develop retrofit technologies that reduce NOx and particulate soot from heavy-duty diesel vehicles

Glowinski, Roland

409

The application of the wavelet finite element method on the temperature calculation of ceramic coating diesel engine piston  

Science Conference Proceedings (OSTI)

In order to analyse the temperature distribution of diesel engine piston, the wavelet finite element was constructed based on Daubechies wavelet scale function and traditional finite element. And the temperature distribution of the conventional and ceramic ...

Bin Zhao

2011-09-01T23:59:59.000Z

410

Comparative Toxicity of Gasoline and Diesel Engine Emissions  

DOE Green Energy (OSTI)

Better information on the comparative toxicity of airborne emissions from different types of engines is needed to guide the development of heavy vehicle engine, fuel, lubricant, and exhaust after-treatment technologies, and to place the health hazards of current heavy vehicle emissions in their proper perspective. To help fill this information gap, samples of vehicle exhaust particles and semi-volatile organic compounds (SVOC) were collected and analyzed. The biological activity of the combined particle-SVOC samples is being tested using standardized toxicity assays. This report provides an update on the design of experiments to test the relative toxicity of engine emissions from various sources.

JeanClare Seagrave; Joe L. Mauderly; Barbara Zielinska; John Sagebiel; Kevin Whitney; Doughlas R. Lawson; Michael Gurevich

2000-06-19T23:59:59.000Z

411

Development of the High-Pressure Direct-Injection ISX G Natural Gas Engine  

DOE Green Energy (OSTI)

Fact sheet details work by Cummins and Westport Innovations to develop a heavy-duty, low-NOx, high-pressure direct-injection natural gas engine for the Next Generation Natural Gas Vehicle activity.

Not Available

2004-08-01T23:59:59.000Z

412

Feasibility test on compounding the internal combustion engine for automotive vehicles, Task II. Final report  

DOE Green Energy (OSTI)

The organic Rankine bottoming cycle can be considered for various automobile and truck applications. The most attractive use, however, is in large, heavy-duty diesel trucks for long distance hauling. Here, the engine load and speed requirements are nearly constant over a large portion of the operating hours, and high mileages are accumulated. Thus, the potential fuel savings are sufficient to justify the added cost of a bottoming cycle system. A conceptual design study of compounding the diesel truck engine with an ORCS was made and the results of the study are presented. Based on the results of the conceptual design study which showed a 15 percent fuel economy improvement potential over the duty cycle, an early feasibility demonstration test of the system was initiated. The demonstration system uses a Mack ENDT 676 diesel engine with existing but nonoptimum ORCS hardware made available from an earlier automotive Rankine-cycle program. The results of these feasibility demonstration tests, both steady-state and transient, over the operating range of the diesel engine, are presented.

Not Available

1976-01-01T23:59:59.000Z

413

A digital control algorithm for diesel engine governing  

SciTech Connect

The performance of a microprocessor based precision engine speed control system was investigated. A sample rate selection criteria is presented along with a procedure to implement a high performance digital PID control algorithm. The algorithm requires a digital speed sensor of 12 to 14 bits to minimize excessive fuel rack motion at a steady state due to digital quantization effects. Computer simulation and experimental test results of the algorithm are presented for an 1800 RPM, 125 Kilowatt engine generator set.

Garvey, P.C.

1985-01-01T23:59:59.000Z

414

Fate of SO{sub 2} During Plasma Treatment of Diesel Engine Exhaust  

DOE Green Energy (OSTI)

Several catalytic aftertreatment technologies rely on the conversion of NO to NO{sub 2} to achieve efficient reduction of NO{sub x} and particulates in diesel engine exhaust. These technologies require low sulfur fuel because the catalyst component that is active in converting NO to NO{sub 2} is also active in converting SO{sub 2} to SO{sub 3}. A non-thermal plasma can be used for the selective partial oxidation of NO to NO{sub 2} in the gas-phase under diesel engine exhaust conditions. This paper discusses how a non-thermal plasma can efficiently oxidize NO to NO{sub 2} without oxidizing SO{sub 2} to SO{sub 3}. It is shown that the presence of hydrocarbons in the plasma is essential for enhancing the selective partial oxidation of NO and suppressing the oxidation of SO{sub 2}.

Brusasco, R.M.; Merritt, B.T.; Vogtlin, G.E.

1999-10-25T23:59:59.000Z

415

Second law analysis of premixed compression ignition combustion in a diesel engine using a thermodynamic engine cycle simulation  

E-Print Network (OSTI)

A second law analysis of compression ignition engine was completed using a thermodynamic engine cycle simulation. The major components of availability destruction and transfer for an entire engine cycle were identified and the influence of mode of combustion, injection timing and EGR on availability balance was evaluated. The simulation pressure data was matched with the available experimental pressure data gathered from the tests on the Isuzu 1.7 L direct injection diesel engine. Various input parameters of the simulation were changed to represent actual engine conditions. Availability destruction due to combustion decreases with advanced injection timing and under premixed compression ignition (PCI) modes; but it is found to be insensitive to the level of EGR. Similarly, trends (or lack of trends) in the other components of availability balance were identified for variation in injection timing, EGR level and mode of combustion. Optimum strategy for efficient combustion processes was proposed based on the observed trends.

Oak, Sushil Shreekant

2008-08-01T23:59:59.000Z

416

Commercialization of coal-fired diesel engines for cogeneration and non-utility power markets  

DOE Green Energy (OSTI)

The primary objective of this METC project is to established practical, durable components compatible with clean coal slurry fuel and capable of low emissions. The components will be integrated into a coal power system for a 100-hr proof-of-concept test. The goal of this program is to advance the stationary coal-fueled diesel engine to the next plateau of technological readiness, and thus provide the springboard to commercialization.

Wilson, R.P.; Rao, K.; Benedek, K.R.; Itse, D.; Parkinson, J.; Kimberley, J.; Balles, E.N.; Benson, C.E.; Smith, C.

1992-12-31T23:59:59.000Z

417

Commercialization of coal-fired diesel engines for cogeneration and non-utility power markets  

DOE Green Energy (OSTI)

The primary objective of this METC project is to established practical, durable components compatible with clean coal slurry fuel and capable of low emissions. The components will be integrated into a coal power system for a 100-hr proof-of-concept test. The goal of this program is to advance the stationary coal-fueled diesel engine to the next plateau of technological readiness, and thus provide the springboard to commercialization.

Wilson, R.P.; Rao, K.; Benedek, K.R.; Itse, D.; Parkinson, J.; Kimberley, J.; Balles, E.N.; Benson, C.E.; Smith, C.

1992-01-01T23:59:59.000Z

418

Characterization and control of exhaust gas from diesel engine firing coal-water mixture  

DOE Green Energy (OSTI)

Exhaust from the GE-TS single cylinder diesel engine, fitted with hardened metal, and diamond-tipped metal fuel injection nozzles, and firing coal-water mixture (CWM) has been characterized with respect to gas composition, particulate size distribution, and particulate filtration characteristics. The measured flue gas compositions are roughly in keeping with results from combustion calculations. The time variations of the hydrocarbon, CO, and NO[sub x] concentrations are also understood in terms of known reaction mechanisms.

Samuel, E.A.; Gal, E.; Mengel, M.; Arnold, M.

1990-03-01T23:59:59.000Z

419

Characterization and control of exhaust gas from diesel engine firing coal-water mixture  

DOE Green Energy (OSTI)

Exhaust from the GE-TS single cylinder diesel engine, fitted with hardened metal, and diamond-tipped metal fuel injection nozzles, and firing coal-water mixture (CWM) has been characterized with respect to gas composition, particulate size distribution, and particulate filtration characteristics. The measured flue gas compositions are roughly in keeping with results from combustion calculations. The time variations of the hydrocarbon, CO, and NO{sub x} concentrations are also understood in terms of known reaction mechanisms.

Samuel, E.A.; Gal, E.; Mengel, M.; Arnold, M.

1990-03-01T23:59:59.000Z

420

Commercialization of coal diesel engines for non-utility and export power markets  

DOE Green Energy (OSTI)

The basic motivation behind this project is to develop coal-burning heat engine technology primarily for 10-100 MW modular stationary power applications in the late 1990`s and beyond, when oil and gas prices may return to the $5--7/MMBtu range. The fuel is a low-cost, coal-based liquid with the consistency of black paint, composed of 12-micron mean size premium 2% ash coal dust mixed 50/50 with water. The Clean Coal Diesel Plant of the future is targeted for the 10-100 MW non-utility generation (NUG) and small utility markets, including independent power producers (IPP) and cogeneration. A family of plant designs will be offered using the Cooper-Bessemer 3.8, 5.0, and 6.3 MW Model LS engines as building blocks. In addition, larger plants will be configured with an engine in the 10-25 MW class (Cooper will license the technology to other large bore stationary engine manufacturers). The reciprocating engine offers a remarkable degree of flexibility in selecting plant capacity. This flexibility exists because the engines are modular in every sense (fuel cell stacks have similar modularity). Scale-up is accomplished simply by adding cylinders (e.g., 20 vs 16) or by adding engines (4 vs 3). There is no scale-up of the basic cylinder size. Thus, there is essentially no technical development needed to scale-up the Cooper-Bessemer Clean Coal Diesel Technology all the way from 2 MW (one 6-cylinder engine) to 50 MW (eight 20-cylinder engines), other than engineering adaptation of the turbocharger to match the engine.

Wilson, R.P.; Balles, E.N.; Rao, K.; Benedek, K.R.; Benson, C.E.; Mayville, R.A.; Itse, D.; Kimberley, J.; Parkinson, J.

1993-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "heavy-duty diesel engines" 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

Oxygen-enriched diesel engine performance: A comparison of analytical and experimental results  

DOE Green Energy (OSTI)

Use of oxygen-enriched combustion air in diesel engines can lead to significant improvements in power density, as well as reductions in particulate emissions, but at the expense of higher NO{sub x} emissions. Oxygen enrichment would also lead to lower ignition delays and the opportunity to burn lower grade fuels. Analytical and experimental studies are being conducted in parallel to establish the optimal combination of oxygen level and diesel fuel properties. In this paper, cylinder pressure data acquired on a single-cylinder engine are used to generate heat release rates for operation under various oxygen contents. These derived heat release rates are in turn used to improve the combustion correlation -- and thus the prediction capability -- of the simulation code. It is shown that simulated and measured cylinder pressures and other performance parameters are in good agreement. The improved simulation can provide sufficiently accurate predictions of trends and magnitudes to be useful in parametric studies assessing the effects of oxygen enrichment and water injection on diesel engine performance. Measured ignition delays, NO{sub x} emissions, and particulate emissions are also compared with previously published data. The measured ignition delays are slightly lower than previously reported. Particulate emissions measured in this series of tests are significantly lower than previously reported. 14 refs., 10 figs., 1 tab.

Sekar, R.R.; Marr, W.W.; Cole, R.L.; Marciniak, T.J. (Argonne National Lab., IL (USA)); Assanis, D.N. (Illinois Univ., Urbana, IL (USA)); Schaus, J.E. (Autoresearch Labs., Inc., Chicago, IL (USA))

1990-01-01T23:59:59.000Z

422

Investigation of Bio-Diesel Fueled Engines under Low-Temperature Combustion Strategies  

DOE Green Energy (OSTI)

In accordance with meeting DOE technical targets this research was aimed at developing and optimizing new fuel injection technologies and strategies for the combustion of clean burning renewable fuels in diesel engines. In addition a simultaneous minimum 20% improvement in fuel economy was targeted with the aid of this novel advanced combustion system. Biodiesel and other renewable fuels have unique properties that can be leveraged to reduce emissions and increase engine efficiency. This research is an investigation into the combustion characteristics of biodiesel and its impacts on the performance of a Low Temperature Combustion (LTC) engine, which is a novel engine configuration that incorporates technologies and strategies for simultaneously reducing NOx and particulate emissions while increasing engine efficiency. Generating fundamental knowledge about the properties of biodiesel and blends with petroleum-derived diesel and their impact on in-cylinder fuel atomization and combustion processes was an important initial step to being able to optimize fuel injection strategies as well as introduce new technologies. With the benefit of this knowledge experiments were performed on both optical and metal LTC engines in which combustion and emissions could be observed and measured under realistic conditions. With the aid these experiments and detailed combustion models strategies were identified and applied in order to improve fuel economy and simultaneously reduce emissions.

Chia-fon F. Lee; Alan C. Hansen

2010-09-30T23:59:59.000Z

423

Study of using oxygen-enriched combustion air for locomotive diesel engines  

DOE Green Energy (OSTI)

A thermodynamic simulation is used to study effects of O2-enriched intake air on performance and NO emissions of a locomotive diesel engine. Parasitic power of the air separation membrane required to supply the O2-enriched air is also estimated. For a given constraint on peak cylinder pressure, gross and net power output of an engine operating under different levels of O2 enrichment are compared with those obtained when a high-boost turbocharged engine is used. A 4% increase in peak cylinder pressure can result in 13% increase in net engine power when intake air with 28 vol% O2 is used and fuel injection timing retarded by 4 degrees. When the engine is turbocharged to a higher inlet boost, the same increase in peak cylinder pressure can result in only 4% improvement in power. If part of the higher exhaust enthalpies from the O2 enrichment is recovered, the power requirements of the air separator membrane can be met. O2 enrichment with its higher combustion temperatures reduces emissions of particulates and visible smoke but increases NO emissions (by up to 3 times at 26% O2 content). Therefore, exhaust gas after-treatment and heat recovery would be required if the full potential of O2 enrichment for improving the performance of locomotive diesel engines is to be realized.

Poola, R.B.; Sekar, R. [Argonne National Lab., IL (United States); Assanis, D.N. [Michigan Univ., Ann Arbor, MI (United States); Cataldi, G.R. [Association of American Railroads, Washington, DC (United States)

1996-10-01T23:59:59.000Z

424

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

425

Efficiency evaluation of the DISC (direct-injection stratified charge), DHC (dilute homogeneous charge), and DI Diesel engines (direct-injection diesel)  

DOE Green Energy (OSTI)

The thermodynamic laws governing the Otto and diesel cycle engines and the possible approaches that might be taken to increase the delivered efficiency of the reciprocating piston engine are discussed. The generic aspects of current research are discussed and typical links between research and the technical barriers to the engines' development are shown. The advanced engines are discussed individually. After a brief description of each engine and its advantages, the major technical barriers to their development are discussed. Also included for each engine is a discussion of examples of the linkages between these barriers and current combustion and thermodynamic research. For each engine a list of questions is presented that have yet to be resolved and could not be resolved within the scope of this study. These questions partially indicate the limit to the state of knowledge regarding efficiency characteristics of the advanced engine concepts. The major technical barriers to each of the engines and their ranges of efficiency improvement are summarized.

Hane, G.J.

1983-09-01T23:59:59.000Z

426

(Wear mechanism and wear prevention in coal-fueled diesel engines)  

DOE Green Energy (OSTI)

The overall objectives of this program is to develop the engine and lubricant system design approach that has the highest probability for commercial acceptance. Several specific objectives can also be identified. These objectives include: definition of the dominant wear mechanisms prevailing in coal-fueled diesel engines; definition of the specific effect of each coal-related lube oil contaminant; determination of the potential of traditional engine lubrication design approaches to either solve or mitigate the effects of the coal related lube oil contaminants; evaluation of several different engine design approaches aimed specifically at preventing lube oil contamination or preventing damage due to lube oil contamination; and presentation of the engine/lubricant system and design determined to have the most potential. 2 figs., 3 tabs.

Not Available

1989-09-15T23:59:59.000Z

427

Wear mechanism and wear prevention in coal-fueled diesel engines  

DOE Green Energy (OSTI)

The overall objective of this program is to develop the engine and lubricant system design approach that has the highest probability for commercial acceptance. Several specific objectives can also be identified. These objectives include: definition of the dominant wear mechanisms prevailing in coal-fueled diesel engines; definition of the specific effect of each coal-related lube oil contaminant; determination of the potential of traditional engine lubrication design approaches to either solve or mitigate the effects of the coal related lube oil contaminants; evaluation of several different engine design approaches aimed specifically at preventing lube oil contamination or preventing damage due to lube oil contamination; and presentation of the engine/lubricant system design determined to have the most potential. 2 figs., 3 tabs.

Not Available

1989-03-20T23:59:59.000Z

428

Effect of B20 and Low Aromatic Diesel on Transit Bus NOx Emissions Over Driving Cycles with a Range of Kinetic Intensity  

DOE Green Energy (OSTI)

Oxides of nitrogen (NOx) emissions for transit buses for up to five different fuels and three standard transit duty cycles were compared to establish whether there is a real-world biodiesel NOx increase for transit bus duty cycles and engine calibrations. Six buses representing the majority of the current national transit fleet and including hybrid and selective catalyst reduction systems were tested on a heavy-duty chassis dynamometer with certification diesel, certification B20 blend, low aromatic (California Air Resources Board) diesel, low aromatic B20 blend, and B100 fuels over the Manhattan, Orange County and UDDS test cycles. Engine emissions certification level had the dominant effect on NOx; kinetic intensity was the secondary driving factor. The biodiesel effect on NOx emissions was not statistically significant for most buses and duty cycles for blends with certification diesel, except for a 2008 model year bus. CARB fuel had many more instances of a statistically significant effect of reducing NOx. SCR systems proved effective at reducing NOx to near the detection limit on all duty cycles and fuels, including B100. While offering a fuel economy benefit, a hybrid system significantly increased NOx emissions over a same year bus with a conventional drivetrain and the same engine.

Lammert, M. P.; McCormick, R. L.; Sindler, P.; Williams, A.

2012-10-01T23:59:59.000Z

429

REQUEST BY CATERPILLAR INC. FOR AN ADVANCE WAIVER OF DOMESTIC...  

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

coating (TTBC) technologies for higher efficiency and lower emission heavy duty diesel engines. Critical design requirements include top ring groove temperature...

430

An Additive Friction Stir Technology  

Science Conference Proceedings (OSTI)

Friction Stir Processing to Enable High Peak Combustion Pressures in Mid-sized and Heavy Duty Diesel Engines · Friction Stir Spot Welding of Magnesium to ...

431

A Decade of Progress in Friction Stirring of High-Temperature ...  

Science Conference Proceedings (OSTI)

Friction Stir Processing to Enable High Peak Combustion Pressures in Mid-sized and Heavy Duty Diesel Engines · Friction Stir Spot Welding of Magnesium to ...

432

Company Name Tax Credit* Manufacturing Facility's  

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

development and infrastructure enhancements support domestic and international demand for ceramic substrates and filters for heavy-duty diesel engine, truck, construction and...

433

Engine deposit and pour point studies using canola oil as a diesel fuel  

SciTech Connect

Engine tests conducted during previous investigations have established the viability of using canola oil as a substitute for diesel fuel on a short term basis, but also revealed the need to assess possible combustion chamber deposits from long range testing. Low temperature problems in handling vegetable oils has also been recognized as posing a threat to their use in winter operation. This paper reports a procedure involving a direct comparison of running two different fuels in an engine simultaneously to study deposit problems, and also reports on three attempted methods - fuel blending, fuel heating and fuel additives to reduce the pour point of canola oil. 3 figures, 1 table.

Strayer, R.C.; Craig, W.K.; Zoerb, G.C.

1982-01-01T23:59:59.000Z

434

Control method for turbocharged diesel engines having exhaust gas recirculation  

SciTech Connect

A method of controlling the airflow into a compression ignition engine having an EGR and a VGT. The control strategy includes the steps of generating desired EGR and VGT turbine mass flow rates as a function of the desired and measured compressor mass airflow values and exhaust manifold pressure values. The desired compressor mass airflow and exhaust manifold pressure values are generated as a function of the operator-requested fueling rate and engine speed. The EGR and VGT turbine mass flow rates are then inverted to corresponding EGR and VGT actuator positions to achieve the desired compressor mass airflow rate and exhaust manifold pressure. The control strategy also includes a method of estimating the intake manifold pressure used in generating the EGR valve and VGT turbine positions.

Kolmanovsky, Ilya V. (Ypsilanti, MI); Jankovic, Mrdjan J (Birmingham, MI); Jankovic, Miroslava (Birmingham, MI)

2000-03-14T23:59:59.000Z

435

Innovative coal-fueled diesel engine injector. Final report  

DOE Green Energy (OSTI)

The purpose of this research investigation was to develop an electronic coal water slurry injection system in conjunction with the Thermal Ignition Combustion System (TICS) concept to achieve autoignition of CWS at various engine load and speed conditions without external ignition sources. The combination of the new injection system and the TICS is designed to reduce injector nozzle spray orifice wear by lowering the peak injection pressure requirements. (VC)

Badgley, P.; Doup, D.

1991-05-01T23:59:59.000Z

436

Development of the High-Pressure Direct-Injected, Ultra Low-NOx Natural Gas Engine: Final Report  

DOE Green Energy (OSTI)

Subcontractor report details work done by Cummins and Westport Innovations to develop a heavy-duty, low-NOx, high-pressure direct-injection natural gas engine for the Next Generation Natural Gas Vehicle activity.

Duggal, V. K.; Lyford-Pike, E. J.; Wright, J. F.; Dunn, M.; Goudie, D.; Munshi, S.

2004-05-01T23:59:59.000Z

437

Diesel and CNG Transit Bus Emissions Characterization By Two Chassis Dynamometer Laboratories: Results and Issues  

DOE Green Energy (OSTI)

Emissions of six 32 passenger transit buses were characterized using one of the West Virginia University (WVU) Transportable Heavy Duty Emissions Testing Laboratories, and the fixed base chassis dynamometer at the Colorado Institute for Fuels and High Altitude Engine Research (CIFHAER). Three of the buses were powered with 1997 ISB 5.9 liter Cummins diesel engines, and three were powered with the 1997 5.9 liter Cummins natural gas (NG) counterpart. The NG engines were LEV certified. Objectives were to contrast the emissions performance of the diesel and NG units, and to compare results from the two laboratories. Both laboratories found that oxides of nitrogen and particulate matter (PM) emissions were substantially lower for the natural gas buses than for the diesel buses. It was observed that by varying the rapidity of pedal movement during accelerations in the Central Business District cycle (CBD), CO and PM emissions from the diesel buses could be varied by a factor of three or more. The driving styles may be characterized as aggressive and non-aggressive, but both styles followed the CBD speed command acceptably. PM emissions were far higher for the aggressive driving style. For the NG fueled vehicles driving style had a similar, although smaller, effect on NO{sub x}. It is evident that driver habits may cause substantial deviation in emissions for the CBD cycle. When the CO emissions are used as a surrogate for driver aggression, a regression analysis shows that NO{sub x} and PM emissions from the two laboratories agree closely for equivalent driving style. Implications of driver habit for emissions inventories and regulations are briefly considered.

Nigel N. Clark, Mridul Gautam; Byron L. Rapp; Donald W. Lyons; Michael S. Graboski; Robert L. McCormick; Teresa L. Alleman; Paul Norton

1999-05-03T23:59:59.000Z

438

Plasma Catalysis for NOx Reduction from Light-Duty Diesel Vehicles  

DOE Green Energy (OSTI)

On behalf of the Department of Energy's Office of FreedomCAR and Vehicle Technologies, we are pleased to introduce the Fiscal Year (FY) 2004 Annual Progress Report for the Advanced Combustion Engine R&D Sub-Program. The mission of the FreedomCAR and Vehicle Technologies Program is to develop more energy efficient and environmentally friendly highway transportation technologies that enable Americans to use less petroleum for their vehicles. The Advanced Combustion Engine R&D Sub-Program supports this mission by removing the critical technical barriers to commercialization of advanced internal combustion engines for light-, medium-, and heavy-duty highway vehicles that meet future Federal and state emissions regulations. The primary objective of the Advanced Combustion Engine R&D Sub-Program is to improve the brake thermal efficiency of internal combustion engines from 30 to 45 percent for light-duty applications by 2010; and 40 to 55 percent for heavy-duty applications by 2012; while meeting cost, durability, and emissions constraints. R&D activities include work on combustion technologies that increase efficiency and minimize in-cylinder formation of emissions, as well as aftertreatment technologies that further reduce exhaust emissions. Work is also being conducted on ways to reduce parasitic and heat transfer losses through the development and application of thermoelectrics and turbochargers that include electricity generating capability, and conversion of mechanically driven engine components to be driven via electric motors. This introduction serves to outline the nature, current progress, and future directions of the Advanced Combustion Engine R&D Sub-Program. The research activities of this Sub-Program are planned in conjunction with the FreedomCAR Partnership and the 21st Century Truck Partnership and are carried out in collaboration with industry, national laboratories, and universities. Because of the importance of clean fuels in achieving low emissions, R&D activities are closely coordinated with the relevant activities of the Fuel Technologies Sub-Program, also within the Office of FreedomCAR and Vehicle Technologies. Research is also being undertaken on hydrogen-fueled internal combustion engines to provide an interim hydrogen-based powertrain technology that promotes the longer-range FreedomCAR Partnership goal of transitioning to a hydrogen-fueled transportation system. Hydrogen engine technologies being developed have the potential to provide diesel-like engine efficiencies with near-zero emissions.

None

2005-12-15T23:59:59.000Z

439

Thermal Barrier Coatings for Low Emission, High Efficiency Diesel Engine Applications  

DOE Green Energy (OSTI)

Thermal efficiencies of 54% have been demonstrated by single cylinder engine testing of advanced diesel engine concepts developed under Department of Energy funding. In order for these concept engines to be commercially viable, cost effective and durable systems for insulating the piston, head, ports and exhaust manifolds will be required. The application and development of new materials such as thick thermal barrier coating systems will be key to insulating these components. Development of test methods to rapidly evaluate the durability of coating systems without expensive engine testing is a major objective of current work. In addition, a novel, low cost method for producing thermal barrier coated pistons without final machining of the coating has been developed.

M. B. Beardsley; P. G. Happoldt; K.C. Kelley; E. F. Rejda; D. F. Socie

1999-04-26T23:59:59.000Z

440

Wear mechanism and wear prevention in coal-fueled diesel engines  

DOE Green Energy (OSTI)

The overall objective of this program is to develop the engine and lubricant system design approach that has the highest probability for commercial acceptance. Several specific objectives can also be identified. These objectives include: definition of the dominant wear mechanisms prevailing in coal-fueled diesel engines; definition of the specific effect of each coal-related lube oil contaminant; determination of the potential of traditional engine lubrication design approaches to either solve or mitigate the effects of the coal related lube oil contaminants; evaluation of several different design approaches aimed specifically at preventing lube oil contamination or preventing damage due to lube oil contamination; and presentation of the engine/lubricant system design determined to have the most potential. 2 figs., 3 tabs.

Not Available

1990-02-19T23:59:59.000Z

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


441

Three-dimensional modeling of diesel engine intake flow, combustion and emissions-II  

DOE Green Energy (OSTI)

A three-dimensional computer code, KIVA, is being modified to include state-of-the-art submodels for diesel engine flow and combustion. Improved and/or new submodels which have already been implemented and previously reported are: Wall heat transfer with unsteadiness and compressibility, laminar-turbulent characteristic time combustion with unburned HC and Zeldo`vich NO{sub x}, and spray/wall impingement with rebounding and sliding drops. Progress on the implementation of improved spray drop drag and drop breakup models, the formulation and testing of a multistep kinetics ignition model and preliminary soot modeling results are described in this report. In addition, the use of a block structured version of KIVA to model the intake flow process is described. A grid generation scheme has been developed for modeling realistic (complex) engine geometries, and computations have been made of intake flow in the ports and combustion chamber of a two-intake-valve engine. The research also involves the use of the code to assess the effects of subprocesses on diesel engine performance. The accuracy of the predictions is being tested by comparisons with engine experiments. To date, comparisons have been made with measured engine cylinder pressure, temperature and heat flux data, and the model results are in good agreement with the experiments. Work is in progress that will allow validation of in-cylinder flow and soot formation predictions. An engine test facility is described that is being used to provide the needed validation data. Test results have been obtained showing the effect of injection rate and split injections on engine performance and emissions.

Reitz, R.D.; Rutland, C.J.

1993-09-01T23:59:59.000Z

442

The effect of oxygenate molecular structure on soot production in direct-injection diesel engines.  

DOE Green Energy (OSTI)

A combined experimental and kinetic modeling study of soot formation in diesel engine combustion has been used to study the addition of oxygenated species to diesel fuel to reduce soot emissions. This work indicates that the primary role of oxygen atoms in the fuel mixture is to reduce the levels of carbon atoms available for soot formation by fixing them in the form of CO or COz. When the structure of the oxygenate leads to prompt and direct formation of CO2, the oxygenate is less effective in reducing soot production than in cases when all fuel-bound 0 atoms produce only CO. The kinetic and molecular structure principles leading to this conclusion are described.

Westbrook, Charles K. (Lawrence Livermore National Laboratory, Livermore, CA); Pitz, William J. (Lawrence Livermore National Laboratory, Livermore, CA); Mueller, Charles J.; Martin, Glen M.; Pickett, Lyle M.

2003-06-01T23:59:59.000Z

443

Micronized-coal-water slurry sprays from a diesel engine positive displacement fuel injection system  

DOE Green Energy (OSTI)

Experiments have been conducted to characterize the sprays from a modified positive displacement fuel injection system for a diesel engine. Diesel fuel water and three concentrations of micronized-coal-water slurry were used in these experiments. The injection system includes an injection jerk pump driven by an electric motor, a specially designed diaphragm to separate the abrasive coal slurry fuel from the pump, and a single-hole fuel nozzle. The sprays were injected into a pressurized chamber equipped with windows. High speed movies and still photographs of the sprays were obtained. In addition, instaneous fuel line pressures and needle lifts were obtained. Data were acquired as a function of fluid, nozzle orifice diameter, rack setting and chamber conditions. The high speed movies were used to determine spray penetration and spray growth.

Caton, J.A.; Kihm, K.D.; Seshadri, A.K.; Zicterman, G. [Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering

1991-12-31T23:59:59.000Z

444

DELTA-DIESEL ENGINE LIGHT TRUCK APPLICATION Contract DE-FC05-97OR22606 Final Report  

DOE Green Energy (OSTI)

DELTA Diesel Engine Light Truck Application End of Contract Report DE-FC05-97-OR22606 EXECUTIVE SUMMARY This report is the final technical report of the Diesel Engine Light Truck Application (DELTA) program under contract DE-FC05-97-OR22606. During the course of this contract, Detroit Diesel Corporation analyzed, designed, tooled, developed and applied the ''Proof of Concept'' (Generation 0) 4.0L V-6 DELTA engine and designed the successor ''Production Technology Demonstration'' (Generation 1) 4.0L V-6 DELTA engine. The objectives of DELTA Program contract DE-FC05-97-OR22606 were to: Demonstrate production-viable diesel engine technologies, specifically intended for the North American LDT and SUV markets; Demonstrate emissions compliance with significant fuel economy advantages. With a clean sheet design, DDC produced the DELTA engine concept promising the following attributes: 30-50% improved fuel economy; Low cost; Good durability and reliability; Acceptable noise, vibration and harshness (NVH); State-of-the-art features; Even firing, 4 valves per cylinder; High pressure common rail fuel system; Electronically controlled; Turbocharged, intercooled, cooled EGR; Extremely low emissions via CLEAN Combustion{copyright} technology. To demonstrate the engine technology in the SUV market, DDC repowered a 1999 Dodge Durango with the DELTA Generation 0 engine. Fuel economy improvements were approximately 50% better than the gasoline engine replaced in the vehicle.

Hakim, Nabil Balnaves, Mike

2003-05-27T23:59:59.000Z

445

Efficiency and Emissions Study of a Residential Micro–cogeneration System Based on a Stirling Engine and Fuelled by Diesel and Ethanol.  

E-Print Network (OSTI)

??This study examined the performance of a residential micro–cogeneration system based on a Stirling engine and fuelled by diesel and ethanol. An extensive number of… (more)

Farra, Nicolas

2010-01-01T23:59:59.000Z

446

In-Cylinder Fuel Blending of Gasoline/Diesel for Improved Efficiency and Lowest Possible Emissions on a Multi-Cylinder Light-Duty Diesel Engine  

DOE Green Energy (OSTI)

In-cylinder fuel blending of gasoline/diesel fuel is investigated on a multi-cylinder light-duty diesel engine as a potential strategy to control in-cylinder fuel reactivity for improved efficiency and lowest possible emissions. This approach was developed and demonstrated at the University of Wisconsin through modeling and single-cylinder engine experiments. The objective of this study is to better understand the potential and challenges of this method on a multi-cylinder engine. More specifically, the effect of cylinder-to-cylinder imbalances, heat rejection, and in-cylinder charge motion as well as the potential limitations imposed by real-world turbo-machinery were investigated on a 1.9-liter four-cylinder engine. This investigation focused on one engine condition, 2300 rpm, 4.2 bar brake mean effective pressure (BMEP). Gasoline was introduced with a port-fuel-injection system. Parameter sweeps included gasoline-to-diesel fuel ratio, intake air mixture temperature, in-cylinder swirl number, and diesel start-of-injection phasing. In addition, engine parameters were trimmed for each cylinder to balance the combustion process for maximum efficiency and lowest emissions. An important observation was the strong influence of intake charge temperature on cylinder pressure rise rate. Experiments were able to show increased thermal efficiency along with dramatic decreases in oxides of nitrogen (NOX) and particulate matter (PM). However, indicated thermal efficiency for the multi-cylinder experiments were less than expected based on modeling and single-cylinder results. The lower indicated thermal efficiency is believed to be due increased heat transfer as compared to the model predictions and suggest a need for improved cylinder-to-cylinder control and increased heat transfer control.

Curran, Scott [ORNL; Prikhodko, Vitaly Y [ORNL; Wagner, Robert M [ORNL; Parks, II, James E [ORNL; Cho, Kukwon [ORNL; Sluder, Scott [ORNL; Kokjohn, Sage [University of Wisconsin, Madison; Reitz, Rolf [University of Wisconsin

2010-01-01T23:59:59.000Z

447

WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials  

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

VEHICLE TECHNOLOGIES OFFICE VEHICLE TECHNOLOGIES OFFICE WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials February 2013 FINAL REPORT This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise,

448

Future market for ceramics in vehicle engines and their impacts  

DOE Green Energy (OSTI)

Ceramic engine components have potential to improve vehicle fuel economy. Some recent tests have also shown their environmental benefits, particularly in reducing particulate emissions in heavy-duty diesel engines. The authors used the data from a survey of the US vehicle engine and component manufacturers relating to ceramic engine components to develop a set of market penetration models. The survey identified promising ceramic components and provided data on the timing of achieving introductory shares in light and heavy-duty markets. Some ceramic components will penetrate the market when the pilot-scale costs are reduced to one-fifth of their current values, and many more will enter the market when the costs are reduced to one-tenth of the current values. An ongoing ceramics research program sponsored by the US Department of Energy has the goal of achieving such price reductions. The size and value of the future ceramic components market and the impacts of this market in terms of fuel savings, reduction in carbon dioxide emissions, and potential reduction in other criteria pollutants are presented. The future ceramic components market will be 9 million components worth $29 million within 5 years of introduction and will expand to 692 million components worth $3,484 million within 20 years. The projected annual energy savings are 3.8 trillion Btu by 5 years, increasing to 526 trillion Btu during the twentieth year. These energy savings will reduce carbon dioxide emissions by 41 million tons during the twentieth year. Ceramic components will help reduce particulate emissions by 100 million tons in 2030 and save the nation`s urban areas $152 million. The paper presents the analytical approach and discusses other economic impacts.

Vyas, A.; Hanson, D. [Argonne National Lab., IL (United States). Center for Transportation Research; Stodolsky, F. [Argonne National Lab., IL (United States). Center for Transportation Research]|[Argonne National Lab., Washington, DC (United States)

1995-02-01T23:59:59.000Z

449

Advanced Petroleum-Based Fuels - Diesel Emissions Project (APBF-DEC): 2,000-Hour Performance of a NOx Adsorber Catalyst and Diesel Particle Filter System for a Medium-Duty, Pick-Up Diesel Engine Platform; Final Report  

Science Conference Proceedings (OSTI)

Presents the results of a 2,000-hour test of an emissions control system consisting of a nitrogen oxides adsorber catalyst in combination with a diesel particle filter, advanced fuels, and advanced engine controls in an SUV/pick-up truck vehicle platform.

Not Available

2007-03-01T23:59:59.000Z

450

Isotopic Tracing of Particulate Matter from a Compression Ignition Engine Fueled with Ethanol-in-Diesel Blends  

DOE Green Energy (OSTI)

Accelerator Mass Spectrometry (AMS) was used to investigate the relative contribution to diesel engine particulate matter (PM) from the ethanol and diesel fractions of blended fuels. Four test fuels along with a diesel fuel baseline were investigated. The test fuels were comprised of {sup 14}C depleted diesel fuel mixed with contemporary grain ethanol (>400 the {sup 14}C concentration of diesel). An emulsifier (Span 85) or cosolvent (butyl alcohol) was used to facilitate mixing. The experimental test engine was a 1993 Cummins B5.9 diesel rated at 175 hp at 2500 rpm. Test fuels were run at steady-state conditions of 1600 rpm and 210 ft-lbs, and PM samples were collected on quartz filters following dilution of engine exhaust in a mini-dilution tunnel. AMS analysis of the filter samples showed that the ethanol contributed less to PM relative to its fraction in the fuel blend. For the emulsified blends, 6.4% and 10.3% contributions to PM were observed for 11.5% and 23.0% ethanol fuels, respectively. For the cosolvent blends, even lower contributions were observed (3.8% and 6.3% contributions to PM for 12.5% and 25.0% ethanol fuels, respectively).

Cheng, A.S.; Dibble, R.W.; Buchholz, B.

1999-11-22T23:59:59.000Z

451

Application of oxygen-enriched combustion for locomotive diesel engines. Phase 1  

DOE Green Energy (OSTI)

A thermodynamic simulation is used to study the effects of oxygen-enriched intake air on the performance and nitrogen oxide (NO) emissions of a locomotive diesel engine. The parasitic power of the air separation membrane required to supply the oxygen-enriched air is also estimated. For a given constraint on peak cylinder pressure, the gross and net power outputs of an engine operating under different levels of oxygen enrichment are compared with those obtained when a high-boost turbocharged engine is used. A 4% increase in peak cylinder pressure can result in an increase in net engine power of approximately 13% when intake air with an oxygen content of 28% by volume is used and fuel injection timing is retarded by 4 degrees. When the engine is turbocharged to a higher inlet boost, the same increase in peak cylinder pressure improves power by only 4%. If part of the significantly higher exhaust enthalpies available as a result of oxygen enrichment are recovered, the power requirements of the air separator membrane can be met, resulting in substantial net power improvements. Oxygen enrichment reduces particulate and visible smoke emissions but increases NO emissions. However, a combination of retarded fuel injection timing and post-treatment of exhaust gases may be adequate to meet the locomotive diesel engine NO{sub x} standards. Exhaust gas after-treatment and heat recovery would be required to realize the full potential of oxygen enrichment. Economic analysis shows that oxygen-enrichment technology is economically feasible and provides high returns on investment. The study also indicates the strong influence of membrane parasitic requirements and exhaust energy recovery on economic benefits. To obtain an economic advantage while using a membrane with higher parasitic power requirements, it is necessary to recover a part of the exhaust energy.

Poola, R.B.; Sekar, R.R.; Assanis, D.N.

1996-09-01T23:59:59.000Z

452

A Study of a Diesel Engine Based Micro-CHP System  

DOE Green Energy (OSTI)

This project, funded by New York State Energy Research and Development Agency (NYSERDA), investigated the potential for an oil-fired combined heat and power system (micro-CHP system) for potential use in residences that use oil to heat their homes. Obviously, this requires the power source to be one that uses heating oil (diesel). The work consisted of an experimental study using a diesel engine and an analytical study that examined potential energy savings and benefits of micro-CHP systems for 'typical' locations in New York State. A search for a small diesel engine disclosed that no such engines were manufactured in the U.S. A single cylinder engine manufactured in Germany driving an electric generator was purchased for the experimental work. The engine was tested using on-road diesel fuel (15 ppm sulfur), and biodiesel blends. One of the main objectives was to demonstrate the possibility of operation in the so-called HCCI (Homogeneous Charge Compression Ignition) mode. The HCCI mode of operation of engines is being explored as a way to reduce the emission of smoke, and NOx significantly without exhaust treatment. This is being done primarily in the context of engines used in transportation applications. However, it is felt that in a micro-CHP application using a single cylinder engine, such an approach would confer those emission benefits and would be much easier to implement. This was demonstrated successfully by injecting the fuel into the engine air intake using a heated atomizer made by Econox Technologies LLC to promote significant vaporization before entering the cylinder. Efficiency and emission measurements were made under different electrical loads provided by two space heaters connected to the generator in normal and HCCI modes of operation. The goals of the analytical work were to characterize, from the published literature, the prime-movers for micro-CHP applications, quantify parametrically the expected energy savings of using micro-CHP systems instead of the conventional heating system, and analyze system approaches for interaction with the local electric utility. The primary energy savings between the space heating provided by a conventional space heating system with all the required electrical energy supplied by the grid and the micro-CHP system supplemented when needed by a conventional space heating and the grid supplied electricity. were calculated for two locations namely Long Island and Albany. The key results from the experimental work are summarized first and the results from the analytical work next. Experimental results: (1) The engine could be operated successfully in the normal and HCCI modes using both diesel and biodiesel blends. (2) The smoke levels are lower with biodiesel than with diesel in both modes of operation. (3) The NOx levels are lower with the HCCI mode of operation than with the normal mode for both fuels. (4) The engine efficiency in these tests is lower in the HCCI mode of operation. However, the system parameters were not optimized for such operation within the scope of this project. However, for an engine designed with such operation in mind, the efficiency would possibly be not lower. Analytical results: (1) The internal combustion engine (diesel engine in this case) is the only proven technology as a prime mover at present. However, as noted above, no U.S. engine is available at present. (2) For both locations, the use of a micro-CHP system results in primary energy savings. This is true whether the CHP system is used only to supply domestic hot water or to supply both hot water and space heat and even for a low efficiency system especially for the latter case. The size of the thermal storage (as long as it above a certain minimum) did not affect this. (3) For example, for a 2 kW CHP electrical efficiency of 25%, a typical house on Long Island will save about 30MBtu of energy per year for a combined space heat and domestic hot water system. This corresponds to annual energy savings of about 210 gallons oil equivalent per (4) The savings increased initially with the powe

Krishna, C.R.; Andrews, J.; Tutu, N.; Butcher, T.

2010-08-31T23:59:59.000Z

453

Wear mechanism and wear prevention in coal-fueled diesel engines  

DOE Green Energy (OSTI)

Coal fueled diesel engines present unique wear problems in the piston ring/cylinder liner area because of their tendency to contaminate the lube-oil with high concentrations of highly abrasive particles. This program involved a series of bench-scale wear tests and engine tests designed to investigate various aspects of the ring/liner wear problem and to make specific recommendations to engine manufacturers as to how to alleviate these problems. The program was organized into tasks, designed to accomplish the following objectives: (1) define the predominant wear mechanisms causing accelerated wear in the ring/liner area; (2) investigate the effectiveness of traditional approaches to wear prevention to prevent wear in coal-fueled engines; (3) further refine information on the most promising approaches to wear prevention; (4) present detailed information and recommendations to engine manufacturers on the most promising approach to wear prevention; (5) present a final report covering the entire program; (6)complete engine tests with a coal-derived liquid fuel, and investigate the effects of the fuel on engine wear and emissions.

Schwalb, J.A.; Ryan, T.W.

1991-10-01T23:59:59.000Z

454

Wear mechanism and wear prevention in coal-fueled diesel engines. Final report  

DOE Green Energy (OSTI)

Coal fueled diesel engines present unique wear problems in the piston ring/cylinder liner area because of their tendency to contaminate the lube-oil with high concentrations of highly abrasive particles. This program involved a series of bench-scale wear tests and engine tests designed to investigate various aspects of the ring/liner wear problem and to make specific recommendations to engine manufacturers as to how to alleviate these problems. The program was organized into tasks, designed to accomplish the following objectives: (1) define the predominant wear mechanisms causing accelerated wear in the ring/liner area; (2) investigate the effectiveness of traditional approaches to wear prevention to prevent wear in coal-fueled engines; (3) further refine information on the most promising approaches to wear prevention; (4) present detailed information and recommendations to engine manufacturers on the most promising approach to wear prevention; (5) present a final report covering the entire program; (6)complete engine tests with a coal-derived liquid fuel, and investigate the effects of the fuel on engine wear and emissions.

Schwalb, J.A.; Ryan, T.W.

1991-10-01T23:59:59.000Z

455

Application of pulsed plasma NO{sub x} reduction to diesel engine exhaust  

SciTech Connect

We have studied the effect of pulsed plasma discharges on gas mixtures simulating diesel engine exhaust by modeling and by experiment. Our modeling results have shown that the pulsed plasma can convert NO{sub x} to N{sub 2} using the nitrogen itself as a reductant. However, this process is energetically unfavorable for the plasma regime of our measurements. In our experiments we found that addition of hydrocarbons improves substantially the energy efficiency of pulsed plasma NO{sub x} reduction. Real exhaust gas contains some gaseous hydrocarbons and carbon monoxide that may prove sufficient for improving the energy efficiency of the ``right`` pulsed plasma reduction process.

Wallman, P.H.; Penetrante, B.M.; Vogtlin, G.E.; Hsiao, M.C.

1993-10-11T23:59:59.000Z

456

Abrasive wear by coal-fueled diesel engine and related particles  

DOE Green Energy (OSTI)

The development of commercially viable diesel engines that operate directly on pulverized coal-fuels will require solution to the problem of severe abrasive wear. The purpose of the work described in this report was to investigate the nature of the abrasive wear problem. Analytical studies were carried out to determine the characteristics of the coal-fuel and associated combustion particles responsible for abrasion. Laboratory pinon-disk wear tests were conducted on oil-particle mixtures to determine the relationship between wear rate and a number of different particle characteristics, contact parameters, specimen materials properties, and other relevant variables.

Ives, L.K. [National Inst. of Standards and Technology, Gaithersburg, MD (United States)

1992-09-01T23:59:59.000Z

457

Soybean and Coconut Biodiesel Fuel Effects on Combustion Characteristics in a Light-Duty Diesel Engine  

Science Conference Proceedings (OSTI)

This study investigated the effects of soybean- and coconut-derived biodiesel fuels on combustion characteristics in a 1.7-liter direct injection, common rail diesel engine. Five sets of fuels were studied: 2007 ultra-low sulfur diesel (ULSD), 5% and 20% volumetric blends of soybean biodiesel with ULSD (soybean B5 and B20), and 5% and 20% volumetric blends of coconut biodiesel with ULSD (coconut B5 and B20). In conventional diesel combustion mode, particulate matter (PM) and nitrogen oxides (NO/dx) emissions were similar for all fuels studied except soybean B20. Soybean B20 produced the lowest PM but the highest NO/dx emissions. Compared with conventional diesel combustion mode, high efficiency clean combustion (HECC) mode, achieved by increased EGR and combustion phasing, significantly reduced both PM and NO/dx emissions for all fuels studied at the expense of higher hydrocarbon (HC) and carbon monoxide (CO) emissions and an increase in fuel consumption (less than 4%). ULSD, soybean B5, and coconut B5 showed no difference in exhaust emissions. However, PM emissions increased slightly for soybean B20 and coconut B20. NO/dx emissions increased significantly for soybean B20, while those for coconut B20 were comparable to ULSD. Differences in the chemical and physical properties of soybean and coconut biodiesel fuels compared with ULSD, such as higher fuel-borne oxygen, greater viscosity, and higher boiling temperatures, play a key role in combustion processes and, therefore, exhaust emissions. Furthermore, the highly unsaturated ester composition in soybean biodiesel can be another factor in the increase of NO/dx emissions.

Han, Manbae [ORNL; Cho, Kukwon [ORNL; Sluder, Scott [ORNL; Wagner, Robert M [ORNL

2008-01-01T23:59:59.000Z

458

Modelling and prediction of particulate matter, NOx, and performance of a diesel vehicle engine under rare data using relevance vector machine  

Science Conference Proceedings (OSTI)

Traditionally, the performance maps and emissions of a diesel engine are obtained empirically through many testes on the dynamometers because no exact mathematical engine model exists. In the current literature, many artificial-neural-network- (ANN-) ...

Ka In Wong, Pak Kin Wong, Chun Shun Cheung

2012-01-01T23:59:59.000Z

459

Production of Diesel Engine Turbocharger Turbine from Low Cost Titanium Powder  

DOE Green Energy (OSTI)

Turbochargers in commercial turbo-diesel engines are multi-material systems where usually the compressor rotor is made of aluminum or titanium based material and the turbine rotor is made of either a nickel based superalloy or titanium, designed to operate under the harsh exhaust gas conditions. The use of cast titanium in the turbine section has been used by Cummins Turbo Technologies since 1997. Having the benefit of a lower mass than the superalloy based turbines; higher turbine speeds in a more compact design can be achieved with titanium. In an effort to improve the cost model, and develop an industrial supply of titanium componentry that is more stable than the traditional aerospace based supply chain, the Contractor has developed component manufacturing schemes that use economical Armstrong titanium and titanium alloy powders and MgR-HDH powders. Those manufacturing schemes can be applied to compressor and turbine rotor components for diesel engine applications with the potential of providing a reliable supply of titanium componentry with a cost and performance advantage over cast titanium.

Muth, T. R.; Mayer, R. (Queen City Forging)

2012-05-04T23:59:59.000Z

460