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1

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

2

Experimental Study of Diesel Fuel Effects on Direct Injection (DI) Diesel Engine Performance and Pollutant Emissions  

Science Journals Connector (OSTI)

Experimental Study of Diesel Fuel Effects on Direct Injection (DI) Diesel Engine Performance and Pollutant Emissions ... The test fuels indicate variable hydrocarbon composition and physical and chemical properties, and they were prepared under a European Union research program aiming to identify future fuel formulations for use in modern DI diesel engines. ... 1,2,4-9,13,14,16,17,24-26 In general, there is an interrelation between the molecular structure (paraffins, olefins, napthenes, and aromatic hydrocarbons), the chemical properties (cetane number, ignition point, etc.), and the physical properties (density, viscosity, surface tension, etc.) of the diesel fuel. ...

Theodoros C. Zannis; Dimitrios T. Hountalas; Roussos G. Papagiannakis

2007-07-19T23:59:59.000Z

3

Exhaust Emissions and Combustion Characteristics of a Direct Injection (DI) Diesel Engine Fueled with Methanol?Diesel Fuel Blends at Different Injection Timings  

Science Journals Connector (OSTI)

Exhaust Emissions and Combustion Characteristics of a Direct Injection (DI) Diesel Engine Fueled with Methanol?Diesel Fuel Blends at Different Injection Timings ... Because of their fuel economy and high reliability, compression-ignition (CI) engines known as diesel engines have been penetrating a number of markets around the world. ...

Mustafa Canakci; Cenk Sayin; Metin Gumus

2008-09-27T23:59:59.000Z

4

Performance and Emissions of Direct Injection Diesel Engine Fueled with Diesel Fuel Containing Dissolved Methane  

Science Journals Connector (OSTI)

State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China ... soot and nitrogen oxides, from direct injection Diesel engines, engineers have proposed various solns., one of which is the use of a gaseous fuel as a partial supplement for liq. ... (16)?Heywood, J. B. Internal Combustion Engine Fundamentals; McGraw-Hill:? New York, 1988. ...

Junqiang Zhang; Deming Jiang; Zuohua Huang; Xibin Wang; Qi Wei

2006-01-19T23:59:59.000Z

5

Investigation of Cluster-Nozzle Concepts for Direct Injection Diesel Engines  

E-Print Network [OSTI]

Investigation of Cluster-Nozzle Concepts for Direct Injection Diesel Engines Von der Fakultät für Investigation of Cluster-Nozzle Concepts for Direct Injection Diesel Engines WICHTIG: D 82 überprüfen !!! #12" in Zusammenarbeit mit General Motors R&D and Strategic Planning, Warren, MI, USA durchgeführt. Ein Teil der Arbeit

Peters, Norbert

6

Direct Injection Compression Ignition Diesel Automotive Technology Education GATE Program  

SciTech Connect (OSTI)

The underlying goal of this prqject was to provide multi-disciplinary engineering training for graduate students in the area of internal combustion engines, specifically in direct injection compression ignition engines. The program was designed to educate highly qualified engineers and scientists that will seek to overcome teclmological barriers preventing the development and production of cost-effective high-efficiency vehicles for the U.S. market. Fu1iher, these highly qualified engineers and scientists will foster an educational process to train a future workforce of automotive engineering professionals who are knowledgeable about and have experience in developing and commercializing critical advanced automotive teclmologies. Eight objectives were defmed to accomplish this goal: 1. Develop an interdisciplinary internal co1nbustion engine curriculum emphasizing direct injected combustion ignited diesel engines. 2. Encourage and promote interdisciplinary interaction of the faculty. 3. Offer a Ph.D. degree in internal combustion engines based upon an interdisciplinary cuniculum. 4. Promote strong interaction with indusuy, develop a sense of responsibility with industry and pursue a self sustaining program. 5. Establish collaborative arrangements and network universities active in internal combustion engine study. 6. Further Enhance a First Class educational facility. 7. Establish 'off-campus' M.S. and Ph.D. engine programs of study at various indusuial sites. 8. Extend and Enhance the Graduate Experience.

Carl L. Anderson

2006-09-25T23:59:59.000Z

7

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...

Xue, Xingyu 1985-

2012-11-15T23:59:59.000Z

8

Effect of stratified water injection on exhaust gases and fuel consumption of a direct injection diesel engine  

Science Journals Connector (OSTI)

The direct injection Diesel engine with its specific fuel consumption of about 200 g/kWh is one of the most efficient thermal engines. However in case of relatively low CH...x...concentration in the exhaust gas t...

Rainer Pauls; Christof Simon

2004-01-01T23:59:59.000Z

9

Numerical Modeling and Experimental Study of Combustion and Soot Formation in a Direct Injection Diesel Engine  

Science Journals Connector (OSTI)

Numerical Modeling and Experimental Study of Combustion and Soot Formation in a Direct Injection Diesel Engine ... The major problems associated with diesel engines are the high levels of nitrogen oxides (NOX) and particulate emissions. ... (11)?Flagan, R. C.; Seinfeld, J. H. Fundamentals of Air Pollution Engineering; Prentice Hall Inc.:? New York, 1988. ...

T. L. Chan; X. B. Cheng

2007-04-10T23:59:59.000Z

10

Combustion analysis of a direct injection diesel engine when fuelled with sunflower methyl ester and its diesel blends  

Science Journals Connector (OSTI)

Uncertainty in the availability of petroleum-based fuels in the near future and stringent pollution norms have triggered a search for renewable and clean-burning fuels. The use of vegetable oil as an alternative fuel has for long been in the pipeline, but its direct use has been limited because of its higher viscosity. In this work, sunflower oil was taken as feedstock and the feasibility of sunflower oil methyl ester (SFME) as an alternative fuel for diesel engines was investigated. Tests were conducted in a 4.4 kW, single cylinder, naturally aspirated direct injection diesel engine. It was observed that the premixed combustion phase of SFME and its blends were less intense compared with diesel oil. In addition, it was observed that SFME and its blends had slightly lower thermal efficiency and lower tailpipe emissions than diesel oil.

G. Lakshmi Narayana Rao; S. Saravanan; P. Selva Ilavarasi; G. Devasagayam

2009-01-01T23:59:59.000Z

11

Advanced Modeling of Direct-Injection Diesel Engines | Department...  

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

Engines 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005deerzellat.pdf More Documents & Publications Effects of Ambient Density and...

12

New Phenomenological Six-Zone Combustion Model for Direct-Injection Diesel Engines  

Science Journals Connector (OSTI)

New Phenomenological Six-Zone Combustion Model for Direct-Injection Diesel Engines ... Nevertheless, to comply with ever more stringent emission standards, particularly regarding NOx and particulate matter (PM) emissions, such as EURO 6 in Europe, diesel engine manufacturers have to find new in-cylinder combustion strategies and/or complex after-treatment devices to reduce their emissions. ... Heywood, J. B. Internal Combustion Engines Fundamentals; McGraw-Hill: New York, 1988. ...

Alain Maiboom; Xavier Tauzia; Samiur Rahman Shah; Jean-Franois Htet

2009-01-09T23:59:59.000Z

13

Development of Innovative Combustion Processes for a Direct-Injection Diesel Engine  

SciTech Connect (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

14

Optical-Engine Study of a Low-Temperature Combustion Strategy Employing a Dual-Row, Narrow-Included-Angle Nozzle and Early, Direct Injection of Diesel Fuel  

Broader source: Energy.gov [DOE]

Insight into mechanisms causing observed sharp emissions increase with diesel fuel injection is gained through experiments in an optical engine employing a similar low-temperature combustion strategy of early, direct injection of diesel fuel.

15

Controlling combustion noise in direct injection diesel engine through mechanical vibration measurement  

Science Journals Connector (OSTI)

The next generations of direct injection diesel engines have greatly improved their performances compared with petrol engines. However, one of the pending subjects is the noise and vibration levels, due to working cycle itself. The design effort to reduce the emissions of noise and vibration transmitted to the vehicle's driver could be lessened because of the assembly process variation. In this paper, a procedure to control this variation has been suggested in order to maintain noise and vibration performances within the limits of design.

J.A. Calvo; V. Diaz; J.L. San Roman

2005-01-01T23:59:59.000Z

16

Power, Efficiency, and Emissions Optimization of a Single Cylinder Direct-Injected Diesel Engine for Testing of Alternative Fuels through Heat Release Modeling  

E-Print Network [OSTI]

Power, Efficiency, and Emissions Optimization of a Single Cylinder Direct-Injected Diesel Engine for Testing of Alternative Fuels through Heat Release Modeling BY Jonathan Michael Stearns Mattson Submitted to the graduate degree program..., Efficiency, and Emissions Optimization of a Single Cylinder Direct-Injected Diesel Engine for Testing of Alternative Fuels through Heat Release Modeling BY Jonathan Michael Stearns Mattson...

Mattson, Jonathan Michael Stearns

2013-08-31T23:59:59.000Z

17

Effect of Fuel Injection Timing on the Emissions of a Direct-Injection (DI) Diesel Engine Fueled with Canola Oil Methyl Ester?Diesel Fuel Blends  

Science Journals Connector (OSTI)

(3, 4) A lot of researchers have reported that using biodiesel as a fuel in diesel engines causes a diminution in harmful exhaust emissions as well as equivalent engine performance with diesel fuel. ... Engine tests have been carried out with the aim of obtaining comparative measures of torque, power, specific fuel consumption and emissions such as CO, smoke d. and NOx to evaluate and compute the behavior of the diesel engine running on the above-mentioned fuels. ... Ma, Z.; Huang, Z. H.; Li, C.; Wang, X. B.; Miao, H.Effects of fuel injection timing on combustion and emission characteristics of a diesel engine fueled with diesel?propane blends Energy Fuels 2007, 21 ( 3) 1504 1510 ...

Cenk Sayin; Metin Gumus; Mustafa Canakci

2010-03-11T23:59:59.000Z

18

Numerical modeling of combustion processes and pollutant formations in direct-injection diesel engines  

Science Journals Connector (OSTI)

The Representative Interactive Flamelet (RIF) concept has been applied to numerically simulate the combustion processes and pollutant formation in the direct injection...X formation including thermal NO path, pro...

Seong-Ku Kim; Joon Kyu Lee; Yong-Mo Kim; Jae-Hyun Ahn

2002-07-01T23:59:59.000Z

19

Combustion and Emission Characteristics of a Direct-Injection Diesel Engine Fueled with Diesel?Diethyl Adipate Blends  

Science Journals Connector (OSTI)

The advantage of a diesel engine compared with a gasoline engine is the fuel economy benefits; however, the high NOx and smoke emissions still remain the main obstacles for the increasing application of diesel engines with the increasing concerns for environmental protection and implementation of more stringent exhaust gas regulations, thus further reduction in engine emissions becomes one of major tasks in engine development. ... In the application of pure oxygenated fuels, Fleisch et al.,1 Kapus et al.,2 and Sorenson et al.3 have studied dimethyl ether (DME) in the modified diesel engine, and their results showed that the engine could achieve ultralow emission prospects without fundamental change in combustion systems. ... Murayama, T.; Zheng, M.; Chikahisa, T. Simultaneous reduction of smoke and NOx from a DI diesel engine with EGR and dimethyl carbonate; SAE paper 952518, Society of Automotive Engineers:? Warrendale, PA, 1995. ...

Yi Ren; Zuohua Huang; Haiyan Miao; Deming Jiang; Ke Zeng; Bing Liu; Xibin Wang

2007-04-19T23:59:59.000Z

20

Effect of palm methyl ester-diesel blends performance and emission of a single-cylinder direct-injection diesel engine  

Science Journals Connector (OSTI)

The purpose of this study is to investigate engine performance and exhaust emission when using several blends of neat palm oil methyl ester (POME) with conventional diesel (D2) in a small direct injection diesel engine and to compare the outcomes to that of the D2 fuel. Engine performances exhaust emissions and some other important parameters were observed as a function of engine load and speed. In addition the effect of modifying compression ratio was also carried out in this study. From the engine experimental work neat and blended fuels behaved comparably to diesel (D2) in terms of fuel consumption thermal efficiency and rate of heat released. Smoke density showed better results than that emitted by D2 operating under similar conditions due to the presence of inherited oxygen and lower sulphur content in the biofuel and its blends. The emissions of CO CO2 and HC were also lower using blended mixtures and in its neat form. However NOx concentrations were found to be slight higher for POME and its blends and this was largely due to higher viscosity of POME and possibly the presence of nitrogen in the palm methyl ester. General observation indicates that biofuel blends can be use without many difficulties in this type of engine but for optimized operation minor modifications to the engine and its auxiliaries are required.

Mazlan Said; Azhar Abdul Aziz

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "direct injection diesel" 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

The effect of ethanol-water fumigation on the performance and emissions from a direct-injection diesel engine.  

E-Print Network [OSTI]

??The effect of ethanol fumigation and water injection on the performance and exhaust emissions from a 1.9-liter Volkswagen TDI diesel engine was investigated. The engine (more)

Olson, Andr Louis

2010-01-01T23:59:59.000Z

22

Evaluation of oxides of nitrogen emissions for the purpose of their transient regulation from a direct injection diesel engine  

Science Journals Connector (OSTI)

The concept of defining a regulatory standard for the maximum allowable emissions of oxides of nitrogen (NOx) from a heavy-duty diesel engine on an instantaneous basis is presented. The significance of this concept from a regulatory point of view is the possibility to realise a steady brake specific NOx emissions result independent of the test schedule used. The emissions of oxides of nitrogen from a state-of-the-art direct injection diesel engine have been examined on an integral as well as on an instantaneous basis over the Federal Test Procedure as well as over several other arbitrary transient cycles generated for this study. Three candidate standards of specific NOx emissions have been evaluated on a real-time, continuous basis. These include brake power specific, fuel mass specific, and carbon dioxide mass specific NOx emissions. Retaining the stock engine control module, the carbon dioxide specific emissions of NOx have been shown to be the most uniform, varying only by about 30% of its mean value regardless of the test schedule or engine operation. The instantaneous fuel specific NOx emissions are shown to be relatively less invariant and the least steady are the brake power specific emissions with a coefficient of variation of up to 200%. Advancing injection timing has been shown to have a wide range of authority over the specific emissions of oxides of nitrogen regardless of the units used, when operating at full load in the vicinity of peak torque speeds. The carbon dioxide specific NOx emissions have shown a linear dependence on the power specific emissions, independent of the examined operating conditions. The trade-off between better brake thermal efficiency, lower exhaust gas temperature at advanced timing and lower NOx emissions has also been shown to be independent of the units of the specific standard used.

Yasser Yacoub; Chris Atkinson

2001-01-01T23:59:59.000Z

23

Influence of Biodiesel Fuel on the Combustion and Emission Formation in a Direct Injection (DI) Diesel Engine  

Science Journals Connector (OSTI)

The injector needle lift trace at low engine speed was almost identical for both fuels, while at maximum engine speed, a shorter injection delay was observed for biodiesel fuel and the injector needle opened earlier as with D2 fuel. ... Figure 1 Comparison of the engine torque (M), fuel consumption (Gh), and brake specific energy consumption (ge) at full load for biodiesel fuel (BD) and D2 fuel in (a) TAM and (b) MAN engines. ... (7)?Sanatore, A.; Cardone, M.; Rocco, V.; Prati, M. V. A comparative analysis of combustion process in DI diesel engine fueled with biodiesel and diesel fuel. ...

Ales Hribernik; Breda Kegl

2007-05-01T23:59:59.000Z

24

Experimental investigation of the effect of combined hydrogen and diesel combustion on the particulate size distribution from a high speed direct injection diesel engine  

Science Journals Connector (OSTI)

The effects of hydrogen addition and exhaust gas recirculation (EGR) levels on the exhaust particulate matter size distribution in a diesel engine have been investigated. The experiments were performed on a 2.0 litre, 4-cylinder, direct injection engine equipped with a modern high-pressure common rail. A nano-Micro-Orifice Uniform Deposit Impactor (nano-MOUDI) was used in this work to study the particulate matter size distribution. All tests were conducted at the set operating point of 1,500 rpm. The experimental work showed that the particulate matter size distribution was not dramatically altered by the addition of EGR, but the main peak was shifted towards the nucleation mode with the addition of hydrogen. The addition of hydrogen increases the emissions of nitrogen oxides (NOx), but reduces the emissions of unburnt hydrocarbons (THC). Conversely, the addition of EGR reduces NOx, but can increase THC. Hydrogen addition increases the peak cylinder pressure and the maximum rate of pressure rise.

L. McWilliam; A. Megaritis

2009-01-01T23:59:59.000Z

25

High-pressure late cycle direct injection of natural gas in a rail medium speed diesel engine  

SciTech Connect (OSTI)

The performance of an Electro-Motive Division (EMD) 567B, two-cylinder locomotive research engine, when operated on high-pressure/late-cycle injection of natural gas, is presented in this paper. A redesign and fabrication of the fuel system was undertaken to facilitate the consumption of natural gas. A small percentage of No.2 diesel fuel (DF-2) was used to ignite the natural gas. Engine performance, while running natural gas, resulted in matching rated speed and power with slightly lower thermal efficiency. Full power was achieved with a ratio of 99 percent natural gas and 1 percent diesel fuel. However, at high natural gas to diesel fuel ratios, audible knock was detected. The primary objective of the project was to establish technical feasibility of, and basic technology for, operating medium-speed rail diesel engines on high-pressure natural gas. Secondary objectives were to attain adequate engine performance levels for rail application, develop a system oriented toward retrofit of in-service locomotives, and realize any potential improvements in thermal efficiency due to use of the high-pressure/late-cycle approach.

Wakenell, J.F.; O'Neal, G.B.; Baker, Q.A.

1987-01-01T23:59:59.000Z

26

Artificial neural networks based prediction of performance and exhaust emissions in direct injection engine using castor oil biodiesel-diesel blends  

Science Journals Connector (OSTI)

In this study the performance and emission characteristics of a direct injection diesel engine using castor oil biodiesel (COB)-diesel blended fuels were investigated experimentally and then predicted by artificial neural networks. For this aim castor oil was converted to its biodiesel via transesterification approach. Then the effects of the biodiesel percentage in blend engine load and speed on brake power brake specific fuel consumption (BSFC) nitrogen oxides (NOx) carbon dioxide (CO2) carbon monoxide (CO) and particle matter (PM) have been considered. Fuel blends with various percentages of biodiesel (0% 5% 10% 15% 20% 25% and 30%) at various engine speeds and loads were tested. The results indicated that blends of COB with diesel fuel provide admissible engine performance; on the other side emissions decreased so much. Two types of neural networks a group method of data handling (GMDH) and feed forward were used for modeling of the diesel engine to predict brake power BSFC and exhaust emissions such as CO CO2 NOx and PM values. The comparison results demonstrate the superiority of the feed forward neural networkmodels over GMDH type models in terms of the statistical measures in the training and testing data but in the number of hidden neurons and model simplicity GMDH models are preferred.

M. H. Shojaeefard; M. M. Etghani; M. Akbari; A. Khalkhali; B. Ghobadian

2012-01-01T23:59:59.000Z

27

Analysis of an extremely fast valve opening camless system to improve transient performance in a turbocharged high speed direct injection diesel engine  

Science Journals Connector (OSTI)

This article describes a theoretical study on the performance optimisation of a high speed direct injection turbocharged diesel engine equipped with an electro-hydraulic variable valve actuation 'camless' system. This system provides extremely fast valve opening and closing slopes. Thus, its potential for recovering part of the energy lost in the valves by reducing gas flow sonic conditions in the valve throat has been investigated. This study has been mainly focused on the analysis of engine performance during a load transient evolution, but the full load steady state attained at the end of the load transient has been also discussed. The results of this investigation have confirmed important improvements in engine performance during the load transient owing to less energy being lost across the valves, which directly results in more energy being available in the turbine. This benefit has also been observed at full load steady state conditions.

J. Benajes; J.R. Serrano; V. Dolz; R. Novella

2009-01-01T23:59:59.000Z

28

Effects of Bioethanol-Blended Diesel Fuel on Combustion and Emission Reduction Characteristics in a Direct-Injection Diesel Engine with Exhaust Gas Recirculation (EGR)  

Science Journals Connector (OSTI)

Department of Mechanical Engineering, Hanyang University, 17 Haengdang-dong, Sungdong-gu, Seoul 133-791, Korea ... As a fuel for compression engines, bioethanol-blended diesel fuels have some different trends on the exhaust emission characteristics according to the engine load. ... The paper begins with an introduction of general information on the nature of emissions of exhaust gases, including the toxicity and causes of emissions for both spark-ignition and diesel engines. ...

Su Han Park; Junepyo Cha; Chang Sik Lee

2010-06-03T23:59:59.000Z

29

Potential for Reduction of Exhaust Emissions in a Common-Rail Direct-Injection Diesel Engine by Fueling with FischerTropsch Diesel Fuel Synthesized from Coal  

Science Journals Connector (OSTI)

In the constant speed/varying load test modes, the use of CFT also resulted in a general reduction of regulated emissions. ... (5, 6) Moreover, FT diesel fuels can be used in contemporary diesel engines without any modification and with a negligible or weak improvement of engine efficiency. ... Liu, Z.; Shi, S.; Li, Y.Coal liquefaction technologiesDevelopment in China and challenges in chemical reaction engineering Chem. ...

Chonglin Song; Guohong Gong; Jinou Song; Gang Lv; Xiaofeng Cao; Lidong Liu; Yiqiang Pei

2011-11-28T23:59:59.000Z

30

Performance and emission parameters optimization of mahua (Madhuca indica) based biodiesel in direct injection diesel engine using response surface methodology  

Science Journals Connector (OSTI)

Mahua oil ethyl ester was prepared from mahua oil using potassium hydroxide as catalyst by trans-esterification. The important fuel properties of mahua biodiesel blends were compared with those of high speed diesel and biodiesel standards. Variation of brake specific fuel consumption (BSFC) brake thermal efficiency (BTE) Pmax CO NOx hydrocarbons and smoke opacity across compression ratio blending ratio and load were studied successfully using response surface methodology based on Central composite rotatable design. The trends similar to general theory of compression ignition engines (CI) were obtained. Optimum performance and emission parameters were determined by considering the significant variables affecting the diesel engine. Significant reduction in emissions at 23% blending ratio were observed as compared to neat diesel at optimum input variables. Hence mahua biodiesel is an environment friendly alternate fuel over diesel and has good scope to run the compression ignition engines.

Sunil Dhingra; Gian Bhushan; Kashyap Kumar Dubey

2013-01-01T23:59:59.000Z

31

Investigation of Fuel Effects on Dilute, Mixing-Controlled Combustion in an Optical Direct-Injection Diesel Engine  

Science Journals Connector (OSTI)

School of Engineering, San Francisco State University, San Francisco, California 94132, and Combustion Research Facility, Sandia National Laboratories, Livermore, California 94550 ... Additionally, data obtained from this study provide fundamental insights into NOx and PM formation mechanisms in diesel engines. ... Results show that increasing fuel oxygenation produces lower in-cylinder and engine-out soot levels, consistent with existing studies of the effects of fuel oxygenation on soot emissions from diesel engines. ...

A. S. (Ed) Cheng; Ansis Upatnieks; Charles J. Mueller

2007-05-25T23:59:59.000Z

32

Experimental Investigation of Optimal Timing of the Diesel Engine Injection Pump Using Biodiesel Fuel  

Science Journals Connector (OSTI)

University of Maribor, Faculty of Mechanical Engineering, Smetanova 17, SI-2000 Maribor ... Compared to mineral diesel, biodiesel and biodiesel blends in general show lower CO, smoke, and HC emissions but higher NOx emission and higher specific fuel consumption. ... In this sense, to gain knowledge about the implications of its use, waste olive oil Me ester was evaluated as a fuel for diesel engines during a 50 h short-term performance test in a diesel direct-injection Perkins engine. ...

Breda Kegl

2006-05-03T23:59:59.000Z

33

Effects of diesel injection pressure on the performance and emissions of a HD common-rail diesel engine fueled with diesel/methanol dual fuel  

Science Journals Connector (OSTI)

Abstract The diesel/methanol dual fuel (DMDF) combustion mode was conducted on a turbo-charged, inter-cooling diesel engine with 6-cylinder for the heavy duty (HD) vehicle. In DMDF mode, methanol is injected into the intake port to form lean air/methanol premixed mixture, and then ignited by the direct-injected diesel fuel in cylinder. This study is aimed to investigate the effect of diesel injection pressure on the characteristics of performance and exhaust emissions from the engine with common-rail fuel system. The experimental results show that at low injection pressure, the IMEP of DMDF mode is lower than that of pure diesel combustion (D) mode. COVIEMP of DMDF mode firstly decreases and then increases with increasing injection pressure, and it remains under 2.1% for all the tests. It is found that the combustion duration in DMDF mode becomes shorter, the maximum cylinder pressure and the peak heat release rate increase, and CA50 gets close to the top dead center as the injection pressure increases. BSFC of DMDF mode decreases with the increase of injection pressure, and is lower than that of D mode for injection pressure over 115MPa. Both of NOX and smoke emissions are reduced in DMDF mode. But smoke decreases and NOX increases as the diesel injection pressure increases in DMDF mode. DMDF generates lower NO and CO2 emissions, while produces higher HC, CO, andNO2 emissions compared to D mode. As the diesel injection pressure increases, CO and HC emissions are decreased, however, CO2 and NO2 emissions are slightly increased.

Junheng Liu; Anren Yao; Chunde Yao

2015-01-01T23:59:59.000Z

34

Investigations on emission characteristics of the pongamia biodieseldiesel blend fuelled twin cylinder compression ignition direct injection engine using exhaust gas recirculation methodology and dimethyl carbonate as additive  

Science Journals Connector (OSTI)

Experiments were carried out on a twin cylinder direct injection compression ignition engine using pongamia biodieseldiesel blend as fuel with exhaust gas recirculation (EGR) and dimethyl carbonate (DMC) as additive. The experimental results showed that pongamia biodieseldiesel blend fuelled engine with EGR and DMC can simultaneously reduce smoke and nitric oxide ( NO x ) emission. The NO x emission was reduced by about 17.68% for 10% of EGR introduction and about 13.55% increase in smoke emission. When dimethyl carbonate was added with EGR the engine emits lower smoke with lesser NO x emission and it showed that the smoke reduction rate had a linear relationship with DMC percentage. The carbon monoxide (CO) and hydrocarbon (HC) emissions also decreased when DMC was added. However the addition of DMC with EGR caused an increase in both BSEC and BTE.

M. Pandian; S. P. Sivapirakasam; M. Udayakumar

2010-01-01T23:59:59.000Z

35

Injection Technology for Marine Diesel Engines  

Science Journals Connector (OSTI)

The introduction of new emission limits faces modern injection systems with new challenges. Increasing the system pressures puts higher loads on the injection components as regards stability, wear and temperature...

Dr. Rolf Leonhard; Dr.-Ing. Marcus Parche

2011-04-01T23:59:59.000Z

36

Study of the control strategies on soot reduction under early-injection conditions on a diesel engine  

Science Journals Connector (OSTI)

Abstract To explore the more effective method to fulfill soot reduction challenges of early-injection conditions, different engine operating parameters such as intake pressure, exhaust gas recirculation (EGR), equivalence ratio, intake temperature, coolant temperature, injection pressure and fuel properties such as using the blends of diesel/gasoline, diesel/n-butanol and dual-fuel were investigated on a diesel engine. A wide range of injection timing from 5CA to ?70CA ATDC were tested, which covered both conventional diesel injection and early-injection conditions. Results showed that the soot emission increased as the injection timing was advanced from ?35CA to ?55CA ATDC, which was attributed to that more spray liquid was out of the piston bowl and impinged on the piston top and cylinder liner. The soot emission decreased as the injection timing further advanced from ?55 to ?70CA ATDC, which was attributed to the suppressed soot formation. Although more advanced injection (?55 to ?70CA ATDC) decreased soot emissions, the combustion efficiency was deteriorated. EGR combined with higher intake pressure resulted in lower soot emissions than that of sole EGR control under the same equivalence ratio. Increasing intake temperature and coolant temperature reduced soot emissions at the injection timing later than ?55CA ATDC but barely affected the soot peak-value. Increasing injection pressure had little impact on soot emissions at early-injection conditions. Regarding to fuel properties, employing the diesel/gasoline and diesel/n-butanol blends dramatically reduced soot emissions and the smokeless combustion was achieved by using pure gasoline or n-heptane. Soot peak-value of diesel/gasoline combustion was higher than that of diesel/n-butanol at low diesel replacement ratio (30%), while for high replacement ratio (70%) the opposite trend was presented. The dual-fuel injection composed by port-injection of gasoline and direct-injection of diesel was more effective in reducing soot emissions than that of single direct-injection under the same gasoline/diesel ratio.

Haifeng Liu; Shuaiying Ma; Zhong Zhang; Zunqing Zheng; Mingfa Yao

2015-01-01T23:59:59.000Z

37

Premixed direct injection disk  

DOE Patents [OSTI]

A fuel/air mixing disk for use in a fuel/air mixing combustor assembly is provided. The disk includes a first face, a second face, and at least one fuel plenum disposed therebetween. A plurality of fuel/air mixing tubes extend through the pre-mixing disk, each mixing tube including an outer tube wall extending axially along a tube axis and in fluid communication with the at least one fuel plenum. At least a portion of the plurality of fuel/air mixing tubes further includes at least one fuel injection hole have a fuel injection hole diameter extending through said outer tube wall, the fuel injection hole having an injection angle relative to the tube axis. The invention provides good fuel air mixing with low combustion generated NOx and low flow pressure loss translating to a high gas turbine efficiency, that is durable, and resistant to flame holding and flash back.

York, William David; Ziminsky, Willy Steve; Johnson, Thomas Edward; Lacy, Benjamin; Zuo, Baifang; Uhm, Jong Ho

2013-04-23T23:59:59.000Z

38

Experimental Study of Biodiesel Blends Effects on Diesel Injection Processes  

Science Journals Connector (OSTI)

It can be said that a lot of studies performed with biodiesel are mere emissions and performances comparisons against a standard diesel fuel using multicylinder engines and fundamental combustion and overall injections aspects are not being completely addressed yet. ... Emissions variations from 2 different engine models and 2 driving cycles were also obsd. ... Lujan, J. M.; Tormos, B.; Salvador, F. J.; Gargar, K. Comparative analysis of a DI diesel engine fuelled with biodiesel blends during the European MVEG-A cycle: Preliminary study (I). ...

Jos M. Desantes; Ral Payri; Antonio Garca; Julien Manin

2009-05-13T23:59:59.000Z

39

Reduction of NOx emission on NiCrAl-Titanium Oxide coated direct injection diesel engine fuelled with radish (Raphanus sativus) biodiesel  

Science Journals Connector (OSTI)

The main aim of this study is the experimental investigation of single cylinder DI diesel engine with and without coating. Diesel and radish (Raphanus sativus) oil Methyl Ester are used as fuels and the results are compared to find the effect of biodiesel in a thermal barrier coating engine. For this purpose engine cylinder head valves and piston crown are coated with 100??m of nickel-chrome-aluminium bond coat and 450??m of TiO2 by the plasma spray method. Radish oil methyl ester is produced by the transesterification process method. From the experimental investigation slight increase in specific fuel consumption in thermal barrier coating engine is observed when compared with the uncoated engine whereas NOx HC Smoke and CO emissions decreased with coated engine for all test fuels used in the coated engine when compared with that of the uncoated engine.

V. Ravikumar; D. Senthilkumar

2013-01-01T23:59:59.000Z

40

Experimental investigations of the performance, emission and combustion characteristics of a biodiesel (ethyl ester of fish oil) fuelled direct-injection diesel engine  

Science Journals Connector (OSTI)

The thirst for fuel is steadily increasing as technology continues to open new areas of exploration. At the same time, the indiscriminate extraction of fossil fuels may also result in pollutant emissions which cause major impacts on ecological systems. In order to overcome the above problems, a suitable biodiesel should be used to replace the diesel fuel. Hence, in this work, feasibility of using biodiesel prepared from fish oil was investigated. Experimental tests were carried out to evaluate the performance, emission and combustion characteristics of a single cylinder, constant speed engine using several blends under variable load conditions. It was found that NOx, HC and CO emission was reduced for blends along with a marginal increase of brake thermal efficiency and smoke. The ignition delay and maximum heat release rate were reduced compared to diesel. Ultimately, fish oil can indeed become the appropriate source for biodiesel with environmental benefits.

G. Sakthivel; G. Nagarajan; M. Ilangkumaran

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "direct injection diesel" 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

Premixed direct injection nozzle  

DOE Patents [OSTI]

An injection nozzle having a main body portion with an outer peripheral wall is disclosed. The nozzle includes a plurality of fuel/air mixing tubes disposed within the main body portion and a fuel flow passage fluidly connected to the plurality of fuel/air mixing tubes. Fuel and air are partially premixed inside the plurality of the tubes. A second body portion, having an outer peripheral wall extending between a first end and an opposite second end, is connected to the main body portion. The partially premixed fuel and air mixture from the first body portion gets further mixed inside the second body portion. The second body portion converges from the first end toward said second end. The second body portion also includes cooling passages that extend along all the walls around the second body to provide thermal damage resistance for occasional flame flash back into the second body.

Zuo, Baifang (Simpsonville, SC); Johnson, Thomas Edward (Greer, SC); Lacy, Benjamin Paul (Greer, SC); Ziminsky, Willy Steve (Simpsonville, SC)

2011-02-15T23:59:59.000Z

42

Effect of different percentages of biodieseldiesel blends on injection, spray, combustion, performance, and emission characteristics of a diesel engine  

Science Journals Connector (OSTI)

Abstract A comparative study of effect of different biodieseldiesel blends (B5, B10, B15, B20, B25, B50 and B100) on injection, spray, combustion, performance, and emissions of a direct injection diesel engine at constant speed (1500rpm) was carried out. The penetration distance increased with increase in percentage of biodiesel in diesel due to enhanced in-line fuel pressure. The simulation results indicate the spray penetration with biodieseldiesel blend up to B15 does not lead to wall impingement but B20 is to be a critical limit of wall impingement (within uncertainty 1.3%). However, it is observed clearly from the simulation results that probability of wall impingement is more with higher blends (B25, B50 and B100). The ignition delay period decreased with all biodiesel blends due to higher cetane number resulting in less rate of pressure rise and the smooth engine running operation. The engine torque does not change significantly with biodieseldiesel blends up to 20% (B20). However, the torque reduction is about 2.7% with B100 at the rated load. Carbon monoxide (CO), hydrocarbon (HC) and smoke emissions decreased with all biodieseldiesel blends. However, oxides of nitrogen (NOx) emission increased in the range of 1.422.8% with all biodieseldiesel blends at rated load due to oxygenated fuel, automatic advance in dynamic injection timing (DIT), higher penetration and higher in-cylinder temperature. A notable conclusion emerged from this study is the optimum biodieseldiesel blend based on no wall impingement (B15: 0% and B20 1.3% uncertainty limit) and increase in \\{NOx\\} emission (B15: 4.1% and B20: 15.6%) in a conventional (unmodified) diesel engine is up to B15.

Subhash Lahane; K.A. Subramanian

2015-01-01T23:59:59.000Z

43

Advanced Diesel Common Rail Injection System for Future Emission Legislation  

Broader source: Energy.gov [DOE]

2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Robert Bosch GMBH Common Rail System Engineering for PC Diesel Systems

44

Injection timing and cone angle behavior on a heavy duty diesel engine  

Science Journals Connector (OSTI)

In this paper the three dimensional computational fluid dynamics (CFD) analysis have been used to improve understanding of the formation of soot and NO during combustion in a heavy duty diesel engine. Six injection strategies were used as follows: start ... Keywords: NO, diesel engine, heavy duty, injection cone angle, injection timing, soot

M. Gorji-Bandpy; D. D. Ganji; S. Soleimani

2008-09-01T23:59:59.000Z

45

Effect of two-stage injection on combustion and emissions under high EGR rate on a diesel engine by fueling blends of diesel/gasoline, diesel/n-butanol, diesel/gasoline/n-butanol and pure diesel  

Science Journals Connector (OSTI)

Abstract The effect of two-stage injection on combustion and emission characteristics under high EGR (46%) condition were experimentally investigated. Four different fuels including pure diesel and blended fuels of diesel/gasoline, diesel/n-butanol, diesel/gasoline/n-butanol were tested. Results show that blending gasoline or/and n-butanol in diesel improves smoke emissions while induces increase in maximum pressure rise rate (MPRR). Adopting pilot injection close to main injection can effectively reduce the peak of premixed heat release rate and MPRR. However, for fuels blends with high percentage of low cetane number fuel, the effect of pilot fuel on ignition can be neglected and the improvement of MPRR is not that obvious. Pilot-main interval presents more obvious effect on smoke than pilot injection rate does, and the smoke emissions decrease with increasing pilot-main interval. A longer main-post interval results in a lower post heat release rate and prolonged combustion duration. While post injection rate has little effect on the start of ignition for post injection. The variation in fuel properties caused by blending gasoline or/and n-butanol into diesel does not impose obvious influence on post combustion. The smoke emission increases first and then declines with retard of post injection timing. Compared to diesel, the smoke emissions of blended fuels are more sensitive to the variation of post injection strategy.

Zunqing Zheng; Lang Yue; Haifeng Liu; Yuxuan Zhu; Xiaofan Zhong; Mingfa Yao

2015-01-01T23:59:59.000Z

46

IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION SYSTEMS  

Office of Scientific and Technical Information (OSTI)

Annual Technical Progress Report for Project Entitled "Impact Annual Technical Progress Report for Project Entitled "Impact of DME-Diesel Fuel Blend Properties on Diesel Fuel Injection Systems" May 16, 2002 - May 15, 2003 Elana M. Chapman, Andre Boehman, Kimberly Wain, Wallis Lloyd, Joseph M. Perez, Donald Stiver, Joseph Conway Report Issue Date: June 2003 DOE Award Number: DE-FC26-01NT41115 The Pennsylvania State University The Energy Institute University Park, PA 16802 ii DISCLAIMER 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,

47

The Performance Analysis on Fuel Injection System Failure for a Four-Stroke Marine Diesel Engine  

Science Journals Connector (OSTI)

The middle speed four stroke diesel engine has the advantages of small capacity, light in weight, capable to combustion poor fuel oil. In recent years, they have been used more comprehensive than before. Daihatsu 6PSHdM-26H diesel engine, which is a ... Keywords: 4-stroke medium-speed turbocharged marine diesel engine, Fuel injection system failure, delayed combustion, performance analysis

Jialiang Huang; Guohao Yang; Dan Wang

2010-12-01T23:59:59.000Z

48

Effects of Fuel Injection Timing on Combustion and Emission Characteristics of a Diesel Engine Fueled with Diesel?Propane Blends  

Science Journals Connector (OSTI)

Effects of Fuel Injection Timing on Combustion and Emission Characteristics of a Diesel Engine Fueled with Diesel?Propane Blends ... State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China, and College of Vehicle & Motive Power Engineering, Henan University of Science and Technology, Luoyang, 471003, China ... It is the third most widely used vehicle fuel behind the gasoline and diesel fuels.1 Diesel fuel has been widely used in internal combustion engines due to its high thermal efficiency and low CO2 emission. ...

Zhihao Ma; Zuohua Huang; Chongxiao Li; Xinbin Wang; Haiyan Miao

2007-03-07T23:59:59.000Z

49

Partially Premixed Combustion in a Diesel Engine Induced by a Pilot Injection at the Low-pressure Top Dead Center  

Science Journals Connector (OSTI)

The engine used in this research is a single-cylinder, four-stroke, direct-injection diesel research engine since this type of facility generates much more accurate data compared to multicylinder engines. ... Aside from those considerations on the general evolution of ISFC with respect to the EPI ratio, a peak of ISFC appears at EPI ratio of 30%. ... (Professional Engineering Publishing Ltd.) ...

Jess Benajes; Ricardo Novella; Antonio Garca; Simon Arthozoul

2009-05-07T23:59:59.000Z

50

carbon sequestration via direct injection  

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

SEQUESTRATION VIA DIRECT INJECTION SEQUESTRATION VIA DIRECT INJECTION Howard J. Herzog, Ken Caldeira, and Eric Adams INTRODUCTION The build-up of carbon dioxide (CO 2 ) and other greenhouse gases in the Earth's atmosphere has caused concern about possible global climate change. As a result, international negotiations have produced the Framework Convention on Climate Change (FCCC), completed during the 1992 Earth Summit in Rio de Janeiro. The treaty, which the United States has ratified, calls for the "stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system." The primary greenhouse gas is CO 2 , which is estimated to contribute to over two-thirds of any climate change. The primary source of CO

51

Engines - Fuel Injection and Spray Research - Diesel Sprays  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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 nation’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

52

Experimental investigation of the effect of split injection on diesel engine performance  

Science Journals Connector (OSTI)

The combustion process in diesel engines is under constant study. A major research effort is being made to establish a better understanding of diesel combustion. Many issues regarding diesel combustion remain unresolved, and these issues may prevent the use of diesel engines due to increasingly stricter air pollution legislation. This study dealt with the effect of the fuel injection profile on diesel engine performance through the utilisation of different multiple injection strategies. From the engineering point of view, establishing a continuous fuel injection profile with the ability to change fuel flow is impossible today. The most feasible engineering solution to continuous fuel injection profile is the utilisation of multiple injection events, which enables control of fuel flow. Multiple injection as a tool to control combustion in diesel engines has been studied for several years, this study investigated the effect of different two injection strategies on the combustion. The results and the analysis of the results demonstrate that multiple injections affect both the physical processes and the kinetics of combustion. Proper division of the injected fuel among injections may decrease engine emissions considerably while causing only a minor decrease in engine efficiency.

Gideon Goldwine; Eran Sher

2009-01-01T23:59:59.000Z

53

Effect of Injection Pressure on the Combustion, Performance, and Emission Characteristics of a Diesel Engine Fueled with Methanol-blended Diesel Fuel  

Science Journals Connector (OSTI)

Effect of Injection Pressure on the Combustion, Performance, and Emission Characteristics of a Diesel Engine Fueled with Methanol-blended Diesel Fuel ... Recently, the use of diesel engines has increased by virtue of their low fuel consumption and high efficiencies. ... Tests on the engine fuelled with diesel only were made, and the performance evaluated to form a basis for comparison for those of ethanol-diesel dual fuelling. ...

Mustafa Canakci; Cenk Sayin; Ahmet Necati Ozsezen; Ali Turkcan

2009-05-04T23:59:59.000Z

54

Flame structure of wall-impinging diesel fuel sprays injected by group-hole nozzles  

SciTech Connect (OSTI)

This paper describes an investigation of the flame structure of wall-impinging diesel sprays injected by group-hole nozzles in a constant-volume combustion vessel at experimental conditions typical of a diesel engine. The particular emphasis was on the effect of the included angle between two orifices (0-15 deg. in current study) on the flame structure and combustion characteristics under various simulated engine load conditions. The laser absorption scattering (LAS) technique was applied to analyze the spray and mixture properties. Direct flame imaging and OH chemiluminescence imaging were utilized to quantify the ignition delay, flame geometrical parameters, and OH chemiluminescence intensity. The images show that the asymmetric flame structure emerges in wall-impinging group-hole nozzle sprays as larger included angle and higher engine load conditions are applied, which is consistent with the spray shape observed by LAS. Compared to the base nozzle, group-hole nozzles with large included angles yield higher overall OH chemiluminescence intensity, wider flame area, and greater proportion of high OH intensity, implying the better fuel/air mixing and improved combustion characteristics. The advantages of group-hole nozzle are more pronounced under high load conditions. Based on the results, the feasibility of group-hole nozzle for practical direct injection diesel engines is also discussed. It is concluded that the asymmetric flame structure of a group-hole nozzle spray is favorable to reduce soot formation over wide engine loads. However, the hole configuration of the group-hole nozzle should be carefully considered so as to achieve proper air utilization in the combustion chamber. Stoichiometric diesel combustion is another promising application of group-hole nozzle. (author)

Gao, Jian; Moon, Seoksu; Nishida, Keiya; Matsumoto, Yuhei [Department of Mechanical System Engineering, University of Hiroshima, Higashi-Hiroshima, 739-8527 (Japan); Zhang, Yuyin [Department of Mechanical Engineering, Tokyo Denki University, Tokyo, 101-8457 (Japan)

2009-06-15T23:59:59.000Z

55

Injection Control Research on High Pressure Common Rail Diesel Engine Based on MPC5554  

Science Journals Connector (OSTI)

Based on new generation MCU MPC5554, new hardware for injection control was designed in this paper. The features of MPC5554 and the Peak & Hold' drive method for injection solenoids were introduced. The performance of eTPU module in MPC5554 was ... Keywords: Diesel Engine, Common Rail System, Injection Control, MPC5554, eTPU

Chong Luo; Ming Zhou; Shao-Jie Liu

2012-10-01T23:59:59.000Z

56

Diesel Injection Shear-Stress Advanced Nozzle (DISSAN) | Department...  

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

Control System Through the Use of CFD Analysis Modeling Combustion Control for High Power Diesel Mode Switching Microstructural Contol of the Porous Si3N4 Ceramics Consisted...

57

Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...  

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

in Gasoline Turbocharged Direct Injection (GTDI) engine technology in the near term as a cost effective, high volume, fuel economy solution, marketed globally as EcoBoost...

58

Advanced Diesel Common Rail Injection System for Future Emission...  

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

passing on to third parties. Approval Data for PC - Diesel at least Euro 3 source: KBA Germany Robert Bosch GmbH reserves all rights even in the event of industrial property...

59

Effect of Fuel Injection Pressure on a Heavy-Duty Diesel Engine Nonvolatile Particle Emission  

Science Journals Connector (OSTI)

Effect of Fuel Injection Pressure on a Heavy-Duty Diesel Engine Nonvolatile Particle Emission ... (4, 9, 10) Recently, we have found nonvolatile core particles in the exhaust of heavy-duty diesel vehicles and engines also at high load conditions. ... On the basis of the thermodynamic behavior, particle core material has been inferred to be solid in room temperature,(4, 6, 10) but the character of the particles in general is still an open question. ...

Tero Lhde; Topi Rnkk; Matti Happonen; Christer Sderstrm; Annele Virtanen; Anu Solla; Matti Kyt; Dieter Rothe; Jorma Keskinen

2011-02-24T23:59:59.000Z

60

Hybrid combustion-premixed gasoline homogeneous charge ignited by injected diesel fuel-4-stroke cycle engines  

SciTech Connect (OSTI)

This paper describes the formation and testing of two hybrid combustion engines, wherein a premixed gasoline homogeneous charge was ignited by a small amount of injected diesel fuel under high compression ratio, by modifying open chamber and prechamber 4-stroke cycle diesel engines. It was found that the premixed gasoline was effective not only for decreasing the fuel consumption but also for reducing the smoke density both in the heavy and over-load regions. The effect of introducing a small amount N/sub 2/ gas for suppressing the diesel knock in the heavy load region also was examined.

Yonetani, H.; Okanishi, N.; Fukutani, I.; Watanabe, E.

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "direct injection diesel" 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

Investigation of Direct Injection Vehicle Particulate Matter...  

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

Emissions This study focuses primarily on particulate matter mass analysis of a gasoline direct injection engine in a test cell with a chassis dynamometer. p-10gibbs.pdf...

62

Adaptive Injection Strategies (AIS) for Ultra-low Emissions Diesel...  

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

Variable Spray Angle Variable Spray Pattern * Variable Injection Pressure (VIP) Liquid penetration of non-evaporating sprays vapor penetration of evaporating sprays: 14 P...

63

Development, Optimization and Validation of Gas Chromatographic Fingerprinting of Brazilian Commercial Diesel Fuel for Quality Control  

Science Journals Connector (OSTI)

......of the representative diesel oil samples. Gas chromatographic...representative commercial diesel samples showed the same...peaks (Table-I). All general fingerprinting data were...high-speed direct-injection diesel engine equipped with a common......

Bruno Csar Diniz Brito dos Santos; Danilo Luiz Flumignan; Jos Eduardo de Oliveira

2012-10-01T23:59:59.000Z

64

Comparison of Neat Biodiesels and ULSD in an Optimized Single-Cylinder Diesel Engine with Electronically-Controlled Fuel Injection  

Science Journals Connector (OSTI)

An Experimental Investigation of the Origin of Increased NOx Emissions When Fueling a Heavy-Duty Compression-Ignition Engine with Soy Biodiesel SAE Int. ... The fuels were then burned in a single-cylinder direct-injection diesel engine and evaluated for both fuel consumption and exhaust emissions of nitrogen oxides, carbon monoxide (CO), unburned hydrocarbons, and particulate matter. ... Monyem, A.; Van Gerpen, J.; Canakcl, M.The effect of timing and oxidation on emissions from biodieselfueled engines Carbon 2001, 44 ( 1) 35 42 ...

Michael Mangus; Farshid Kiani; Jonathan Mattson; Christopher Depcik; Edward Peltier; Susan Stagg-Williams

2014-05-12T23:59:59.000Z

65

Advantages of Oxygenates Fuels over Gasoline in Direct Injection...  

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

Advantages of Oxygenates Fuels over Gasoline in Direct Injection Spark Ignition Engines Advantages of Oxygenates Fuels over Gasoline in Direct Injection Spark Ignition Engines...

66

Just the Basics: Diesel Engine  

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

67

Extended performance of alcohol fumigation in diesel engines through different multipoint alcohol injection timing cycles  

SciTech Connect (OSTI)

This paper reports on the results of using multipoint port injection alcohol fumigation of a four-cycle turbocharged diesel engine in which the fumigation injection cycle was varied. The three cycles, dual with one-half of the alcohol injection on each engine revolution, single with all of the alcohol injection during the open intake valve revolution, and single with all of the alcohol injected during the closed intake valve revolution, lead to significant differences in the engines pressure-volume history and alcohol energy replacement tolerance. The engine was fumigated with both industrial grade ethanol and methanol and complete performance and emissions data (excluding aldehydes) were measured at low, medium, and high values of BMEP and rpm.

Savage, L.D.; White, R.A.; Cole, S.; Pritchett, G.

1986-01-01T23:59:59.000Z

68

Performance of a High Speed Indirect Injection Diesel Engine...  

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

Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. p-12covington.pdf More Documents & Publications Investigation...

69

European Lean Gasoline Direct Injection Vehicle Benchmark  

SciTech Connect (OSTI)

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

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

2011-01-01T23:59:59.000Z

70

Performance of a High Speed Indirect Injection Diesel Engine with Poultry Fat Bio-Diesel  

Broader source: Energy.gov [DOE]

Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

71

An Innovative Injection and Mixing System for Diesel Fuel Reforming  

SciTech Connect (OSTI)

This project focused on fuel stream preparation improvements prior to injection into a solid oxide fuel cell reformer. Each milestone and the results from each milestone are discussed in detail in this report. The first two milestones were the creation of a coking formation test rig and various testing performed on this rig. Initial tests indicated that three anti-carbon coatings showed improvement over an uncoated (bare metal) baseline. However, in follow-up 70 hour tests of the down selected coatings, Scanning Electron Microscope (SEM) analysis revealed that no carbon was generated on the test specimens. These follow-up tests were intended to enable a down selection to a single best anti-carbon coating. Without the formation of carbon it was impossible to draw conclusions as to which anti-carbon coating showed the best performance. The final 70 hour tests did show that AMCX AMC26 demonstrated the lowest discoloration of the metal out of the three down selected anti-carbon coatings. This discoloration did not relate to carbon but could be a useful result when carbon growth rate is not the only concern. Unplanned variations in the series of tests must be considered and may have altered the results. Reliable conclusions could only be drawn from consistent, repeatable testing beyond the allotted time and funding for this project. Milestones 3 and 4 focused on the creation of a preheating pressure atomizer and mixing chamber. A design of experiment test helped identify a configuration of the preheating injector, Build 1, which showed a very uniform fuel spray flow field. This injector was improved upon by the creation of a Build 2 injector. Build 2 of the preheating injector demonstrated promising SMD results with only 22psi fuel pressure and 0.7 in H2O of Air. It was apparent from testing and CFD that this Build 2 has flow field recirculation zones. These recirculation zones may suggest that this Build 2 atomizer and mixer would require steam injection to reduce the auto ignition potential. It is also important to note that to achieve uniform mixing within a short distance, some recirculation is necessary. Milestone 5 generated CFD and FEA results that could be used to optimize the preheating injector. CFD results confirmed the recirculation zones seen in test data and confirmed that the flow field would not change when attached to a reformer. The FEA predicted fuel wetted wall temperatures which led to several suggested improvements that could possibly improve nozzle efficiency. Milestone 6 (originally an optional task) took a different approach than the preheating pressure atomizer. It focused on creation and optimization of a piezoelectric injector which could perform at extremely low fuel pressures. The piezoelectric atomizer showed acceptable SMD results with fuel pressure less than 1.0 psig and air pressure less than 1.0 in H2O. These SMD values were enhanced when a few components were changed, and it is expected would improve further still at elevated air temperatures. It was demonstrated that the piezoelectric injector could accomplish the desired task. The addition of phase tracking and a burst mode to the frequency controller increased the usability of the piezoelectric injector. This injector is ready to move on to the next phase of development. Engine Components has met the required program milestones of this project. Some of the Milestones were adjusted to allow Milestone 6 to be completed in parallel with the other Milestones. Because of this, Task 3.10 and 3.13 were made optional instead of Milestone 6. Engine Components was extremely grateful for the support that was provided by NETL in support of this work.

Spencer Pack

2007-12-31T23:59:59.000Z

72

FUEL FORMULATION EFFECTS ON DIESEL FUEL INJECTION, COMBUSTION, EMISSIONS AND EMISSION CONTROL  

SciTech Connect (OSTI)

This paper describes work under a U.S. DOE sponsored Ultra Clean Fuels project entitled ''Ultra Clean Fuels from Natural Gas,'' Cooperative Agreement No. DE-FC26-01NT41098. In this study we have examined the incremental benefits of moving from low sulfur diesel fuel and ultra low sulfur diesel fuel to an ultra clean fuel, Fischer-Tropsch diesel fuel produced from natural gas. Blending with biodiesel, B100, was also considered. The impact of fuel formulation on fuel injection timing, bulk modulus of compressibility, in-cylinder combustion processes, gaseous and particulate emissions, DPF regeneration temperature and urea-SCR NOx control has been examined. The primary test engine is a 5.9L Cummins ISB, which has been instrumented for in-cylinder combustion analysis and in-cylinder visualization with an engine videoscope. A single-cylinder engine has also been used to examine in detail the impacts of fuel formulation on injection timing in a pump-line-nozzle fueling system, to assist in the interpretation of results from the ISB engine.

Boehman, A; Alam, M; Song, J; Acharya, R; Szybist, J; Zello, V; Miller, K

2003-08-24T23:59:59.000Z

73

Influence of Early Fuel Injection Timings on Premixing and Combustion in a Diesel Engine  

Science Journals Connector (OSTI)

Engine Laboratory, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 373-1 GuSeong-Dong, YuSeong-Gu, Daejeon 305-701, Republic of Korea ... Even with the same fueling rate, faster engine speed would need more advanced injection for achieving 6.5 ms of ?id; more than 100 CAD of ?id was needed at 3000 rpm, and it was increased to 200 CAD at 5000 rpm, which was quite occasional in modern automotive diesel engines. ... Several general observations may be made. ...

Sanghoon Kook; Seik Park; Choongsik Bae

2007-12-12T23:59:59.000Z

74

Comparison of propane and methane performance and emissions in a turbocharged direct injection dual fuel engine  

SciTech Connect (OSTI)

With increasingly restrictive NO x and particulate matter emissions standards, the recent discovery of new natural gas reserves, and the possibility of producing propane efficiently from biomass sources, dual fueling strategies have become more attractive. This paper presents experimental results from dual fuel operation of a four-cylinder turbocharged direct injection (DI) diesel engine with propane or methane (a natural gas surrogate) as the primary fuel and diesel as the ignition source. Experiments were performed with the stock engine control unit at a constant speed of 1800 rpm, and a wide range of brake mean effective pressures (BMEPs) (2.7-11.6 bars) and percent energy substitutions (PESs) of C 3 H 8 and CH 4. Brake thermal efficiencies (BTEs) and emissions (NO x, smoke, total hydrocarbons (THCs), CO, and CO 2) were measured. Maximum PES levels of about 80-95% with CH 4 and 40-92% with C 3 H 8 were achieved. Maximum PES was limited by poor combustion efficiencies and engine misfire at low loads for both C 3 H 8 and CH 4, and the onset of knock above 9 bar BMEP for C 3 H 8. While dual fuel BTEs were lower than straight diesel BTEs at low loads, they approached diesel BTE values at high loads. For dual fuel operation, NO x and smoke reductions (from diesel values) were as high as 66-68% and 97%, respectively, but CO and THC emissions were significantly higher with increasing PES at all engine loads

Gibson, C. M.; Polk, A. C.; Shoemaker, N. T.; Srinivasan, K. K.; Krishnan, S. R.

2011-04-20T23:59:59.000Z

75

Experimental investigation on the characteristics of diesel oxygenated fuel blends in a di diesel engine using two spring split injection;.  

E-Print Network [OSTI]

??Diesel engines are efficient prime movers for heavy duty vehicles, so they have attracted many automobile and research institutions for their use as main prime (more)

Kumaresan M

2013-01-01T23:59:59.000Z

76

Field test of two high-pressure, direct-contact downhole steam generators. Volume I. Air/diesel system  

SciTech Connect (OSTI)

As a part of the Project DEEP STEAM to develop technology to more efficiently utilize steam for the recovery of heavy oil from deep reservoirs, a field test of a downhole steam generator (DSG) was performed. The DSG burned No. 2 diesel fuel in air and was a direct-contact, high pressure device which mixed the steam with the combustion products and injected the resulting mixture directly into the oil reservoir. The objectives of the test program included demonstration of long-term operation of a DSG, development of operational methods, assessment of the effects of the steam/combustion gases on the reservoir and comparison of this air/diesel DSG with an adjacent oxygen/diesel direct contact generator. Downhole operation of the air/diesel DSG was started in June 1981 and was terminated in late February 1982. During this period two units were placed downhole with the first operating for about 20 days. It was removed, the support systems were slightly modified, and the second one was operated for 106 days. During this latter interval the generator operated for 70% of the time with surface air compressor problems the primary source of the down time. Thermal contact, as evidenced by a temperature increase in the production well casing gases, and an oil production increase were measured in one of the four wells in the air/diesel pattern. Reservoir scrubbing of carbon monoxide was observed, but no conclusive data on scrubbing of SO/sub x/ and NO/sub x/ were obtained. Corrosion of the DSG combustor walls and some other parts of the downhole package were noted. Metallurgical studies have been completed and recommendations made for other materials that are expected to better withstand the downhole combustion environment. 39 figures, 8 tables.

Marshall, B.W.

1983-05-01T23:59:59.000Z

77

Advanced Modeling of Direct-Injection Diesel Engines  

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

calculation. It strongly influences the atomization and break-up processes, the spray penetration, the inter-phase transfer processes, and the droplet-droplet interaction. The...

78

Influence and potential of flexible injection rate shaping for medium and heavy duty diesel engine combustion processes  

Science Journals Connector (OSTI)

Modern fuel injection systems for medium and heavy duty diesel engines combine the potential of very high injection pressures and flexible injection rate shaping. Against this background, the Commercial Vehicle Division of DaimlerChrysler AG, in close collaboration with DaimlerChrysler Research, performed principle tests to assess the influence of a flexible injection process, focusing on the effects of injection rate shaping. Besides pressure indexing, optical diagnostic methods and simulation techniques provided valuable insights in this study. Within this project, four different injection systems with different potentials of flexibility were investigated. New insights, such as the influence of needle opening and closing behaviour on nitric oxide emissions and the influence of injection rate shaping on soot emissions have been elaborated.

Thomas Koch; Uwe Gartner; Gerhard Konig

2006-01-01T23:59:59.000Z

79

Optimization of an Irreversible Diesel Cycle: Experimental Results of a Ceramic Coated Indirect-Injection Supercharged Diesel Engine  

Science Journals Connector (OSTI)

Technical Education Faculty and Department of Mechanical Engineering, Sakarya University, Esentepe 54187, Sakarya, Turkey, and Maritime Faculty, Marine Engineering, Istanbul Technical University, Tuzla, Turkey ... Effects of a ceramic coating on performance and exhaust emissions in the LHR engine have been compared to those obtained from the standard (STD) diesel engine based on the comparison of the STD and the LHR engines for identical airflow and brake mean effective pressure. ... Gataowski, J. A. Evaluation of a selectively-cooled single-cylinder 0.5-L Diesel engine; SAE paper No. 900693, Society of Automotive Engineers: Warrendale, PA, 1990. ...

A. Parlak; H. Yasar; H. S. Soyhan; C. Deniz

2008-04-25T23:59:59.000Z

80

Direct tuyere injection of oxygen for enhanced coal combustion  

SciTech Connect (OSTI)

Injecting oxygen directly into the tuyere blowpipe can enhance the ignition and combustion of injected pulverized coal, allowing the efficient use of higher coal rates at high furnace production levels. The effects of direct oxygen injection have been estimated from an analysis of the factors controlling the dispersion, heating, ignition, and combustion of injected coal. Injecting ambient temperature oxygen offers mechanical improvements in the dispersion of coal but provides little thermochemical benefit over increased blast enrichment. Injecting hot oxygen through a novel, patented thermal nozzle lance offers both mechanical and thermochemical benefits over increased enrichment or ambient oxygen injection. Plans for pilot-scale and commercial-scale testing of this new lance are described.

Riley, M.F. [Praxair, Inc., Tarrytown, NY (United States)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "direct injection diesel" 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

An Integrated Platform for Engine Performance Simulations and Optimization under Diesel Conditions  

Broader source: Energy.gov [DOE]

The direct injection stochastic reactor model is capable of accurate simulation of combustion under diesel conditions and can also be used to simulate and test different fuels.

82

Global market requirements to be met by diesel injection systems for heavy-duty and off-highway engines Part 2  

Science Journals Connector (OSTI)

This article by Robert Bosch GmbH examines the demands to be met by diesel injection systems in heavyduty on-highway and off-highway applications, the latter being a segment that is characterized by lower grow...

Rudolf Maier; Ulrich Projahn; Klaus Krieger

2002-10-01T23:59:59.000Z

83

Volatility of Gasoline and Diesel Fuel Blends for Supercritical Fuel Injection  

Broader source: Energy.gov [DOE]

Supercritical dieseline could be used in diesel engines having efficient fuel systems and combustion chamber designs that decrease fuel consumption and mitigate emissions.

84

Implementation of direct LSC method for diesel samples on the fuel market  

Science Journals Connector (OSTI)

Abstract The European Union develops common EU policy and strategy on biofuels and sustainable bio-economy through several documents. The encouragement of biofuel?s consumption is therefore the obligation of each EU member state. The situation in Slovenian fuel market is presented and compared with other EU countries in the frame of prescribed values from EU directives. Diesel is the most common fuel for transportation needs in Slovenia. The study was therefore performed on diesel. The sampling net was determined in accordance with the fuel consumption statistics of the country. 75 Sampling points were located on different types of roads. The quantity of bio-component in diesel samples was determined by direct LSC method through measurement of C-14 content. The measured values were in the range from 0 up to nearly 6 mass percentage of bio-component in fuel. The method has proved to be appropriate, suitable and effective for studies on the real fuel market.

Romana Kritof; Marko Hirsch; Jasmina Koar Logar

2014-01-01T23:59:59.000Z

85

Gasoline direct injection: Actual trends and future strategies for injection and combustion systems  

SciTech Connect (OSTI)

Recent developments have raised increased interest on the concept of gasoline direct injection as the most promising future strategy for fuel economy improvement of SI engines. The general requirements for mixture preparation and combustion systems in a GDI engine are presented in view of known and actual systems regarding fuel economy and emission potential. The characteristics of the actually favored injection systems are discussed and guidelines for the development of appropriate combustion systems are derived. The differences between such mixture preparation strategies as air distributed fuel and fuel wall impingement are discussed, leading to the alternative approach to the problem of mixture preparation with the fully air distributing concept of direct mixture injection.

Fraidl, G.K.; Piock, W.F.; Wirth, M.

1996-09-01T23:59:59.000Z

86

Effect of Compression Ratio and Spray Injection Angle on HCCI Combustion in a Small DI Diesel Engine  

Science Journals Connector (OSTI)

Graduate School and Department of Mechanical Engineering, Hanyang University, 17 Haengdang-dong, Sungdong-gu, Seoul 133-791, and Research & Development Division for Hyundai Motor Company & Kia Motors Corporation, Jangduk-dong, Whasung-si, Gyunggi-do, 445-706, Korea ... To realize this fundamental concept and find the optimal operating conditions, injection timing was varied from top dead center (TDC) to 80 before TDC and up to 45% of exhaust gas recirculation (EGR) was tested. ... From the deep anal., it was found that adding EGR to the air flow rate to the Diesel engine, rather than displacing some of the inlet air, appears to be a more beneficial way of utilizing EGR in Diesel engines. ...

Myung Yoon Kim; Jee Won Kim; Chang Sik Lee; Je Hyung Lee

2005-12-14T23:59:59.000Z

87

Adaptive Injection Strategies (AIS) for Ultra-low Emissions Diesel Engines  

Broader source: Energy.gov [DOE]

Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

88

Engines - Spark Ignition Engines - Direct Injection - Omnivorous Engine  

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

Direct Injection, Spark-Ignited Engines Direct Injection, Spark-Ignited Engines Omnivorous Engine Omnivorous Engine Setup Omnivorous Engine Setup New engine technology has made possible engines that will operate on a wide variety of fuel inputs, from gasoline to naptha to ethanol to methanol, without driver intervention. Although flexible fuel vehicles have been produced in the millions, their engines have always been optimized for gasoline operation while accepting significant performance and efficiency degradations when using the alternative fuel. This project seeks to combine in-cylinder measurement technology, and advanced controls to optimize spark timing, the quantity and timing of injected fuel, to produce an "omnivorous engine"--one that will be able to run on any liquid spark ignition fuel with optimal efficiency and low

89

Diesel Vehicles  

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

90

Achieving Consistent Maximum Brake Torque with Varied Injection Timing in a DI Diesel Engine  

E-Print Network [OSTI]

, the characteristics of combustion for swept injection timings along the maximum brake torque plateau are determined. The research is conducted by varying injection timing at constant engine speed and load while measuring engine emissions and in-cylinder pressure...

Kroeger, Timothy H

2013-09-19T23:59:59.000Z

91

Global market requirements to be met by diesel injection systems for heavy-duty and off-highway engines Part 1  

Science Journals Connector (OSTI)

This article by Robert Bosch GmbH examines the demands to be met by diesel injection systems in heavy-duty on-highway and off-highway applications, the latter being a segment that is characterised by lower gro...

Rudolf Maier; Ulrich Projahn; Klau Krieger

2002-09-01T23:59:59.000Z

92

Investigation on the Effect of Port-Injected Methanol on the Performance and Emissions of a Diesel Engine at Different Engine Speeds  

Science Journals Connector (OSTI)

Investigation on the Effect of Port-Injected Methanol on the Performance and Emissions of a Diesel Engine at Different Engine Speeds ... Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China ... State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China ...

C. S. Cheung; Z. H. Zhang; T. L. Chan; Chunde Yao

2009-08-21T23:59:59.000Z

93

Correcting injection pressure maladjustments to reduce NOX emissions by marine diesel engines  

Science Journals Connector (OSTI)

Emissions from the exhausts of marine diesel engines comprises several different gases including NOX. These are currently regulated at the international level under Regulation 13 of ANNEX VI of MARPOL 73/78, but this regulation only applies to new engines and is based on bench tests, for only a single engine designated the parent engine. Here, the need to take measurements from across their whole range and once in operation on board a vessel is examined. This would not only improve assessment of new equipment against the current regulation, but would also detect defects in the functioning of the engine.

C. Vanesa Durn Grados; Zigor Uriondo; Manuel Clemente; Francisco J. Jimnez Espadafor; Juan Moreno Gutirrez

2009-01-01T23:59:59.000Z

94

Field test of two high-pressure direct-contact downhole steam generators. Volume II. Oxygen/diesel system  

SciTech Connect (OSTI)

A field test of an oxygen/diesel fuel, direct contact steam generator has been completed. The field test, which was a part of Project DEEP STEAM and was sponsored by the US Department of Energy, involved the thermal stimulation of a well pattern in the Tar Zone of the Wilmington Oil Field. The activity was carried out in cooperation with the City of Long Beach and the Long Beach Oil Development Company. The steam generator was operated at ground level, with the steam and combustion products delivered to the reservoir through 2022 feet of calcium-silicate insulated tubing. The objectives of the test included demonstrations of safety, operational ease, reliability and lifetime; investigations of reservoir response, environmental impact, and economics; and comparison of those points with a second generator that used air rather than oxygen. The test was extensively instrumented to provide the required data. Excluding interruptions not attributable to the oxygen/diesel system, steam was injected 78% of the time. System lifetime was limited by the combustor, which required some parts replacement every 2 to 3 weeks. For the conditions of this particular test, the use of trucked-in LOX resulted in liess expense than did the production of the equivalent amount of high pressure air using on site compressors. No statistically significant production change in the eight-acre oxygen system well pattern occurred during the test, nor were any adverse effects on the reservoir character detected. Gas analyses during the field test showed very low levels of SOX (less than or equal to 1 ppM) in the generator gaseous effluent. The SOX and NOX data did not permit any conclusion to be drawn regarding reservoir scrubbing. Appreciable levels of CO (less than or equal to 5%) were measured at the generator, and in this case produced-gas analyses showed evidence of significant gas scrubbing. 64 figures, 10 tables.

Moreno, J.B.

1983-07-01T23:59:59.000Z

95

Calibraton of a Directly Injected Natural Gas HD Engine for Class...  

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

Calibraton of a Directly Injected Natural Gas HD Engine for Class 8 Truck Applications Calibraton of a Directly Injected Natural Gas HD Engine for Class 8 Truck Applications This...

96

Fact #720: March 26, 2012 Eleven Percent of New Light Trucks Sold have Gasoline Direct Injection  

Broader source: Energy.gov [DOE]

Gasoline direct fuel injection (GDI) allows fuel to be injected directly into the cylinder so the timing and shape of the fuel mist can be controlled more precisely. The improved combustion and...

97

Analysis of the injection process in direct injected natural gas engines. Part 1: Study of unconfined and in-cylinder plume behavior  

SciTech Connect (OSTI)

A study of natural gas (NG) direct injection (DI) processes has been performed using multidimensional computational fluid dynamics analysis. The purpose was to improve the understanding of mixing in DI NG engines. Calculations of injection into a constant-volume chamber were performed to document unconfined plume behavior. A full three-dimensional calculation of injection into a medium heavy-duty diesel engine cylinder was also performed to study plume behavior in engine geometries. The structure of the NG plume is characterized by a core of unmixed fuel confined to the near-field of the jet. This core contains the bulk of the unmixed fuel and is mixed by the turbulence generated by the jet shear layer. The NG plume development in the engine is dominated by combustion chamber surface interactions. A Coanda effect causes plume attachment to the cylinder head, which has a detrimental impact on mixing. Unconfined plume calculations with different nozzle hole sizes demonstrate that smaller nozzle holes are more effective at mixing the fuel and air.

Jennings, M.J.; Jeske, F.R. (Ricardo North America, Burr Ridge, IL (United States))

1994-10-01T23:59:59.000Z

98

Direct Capillary Gas Chromatography of Filter-Borne Particulate Emissions from Diesel Engines  

Science Journals Connector (OSTI)

......Filter-Borne Particulate Emissions from Diesel Engines R.D. Cuthbertson P.R. Shore...Filter-Borne Particulate Emissions from Diesel Engines R.D. Cuthbertson and P.R...oil-derived material. Introduction Diesel engines emit particulate matter consisting......

R.D. Cuthbertson; P.R. Shore

1988-03-01T23:59:59.000Z

99

Iron beam acceleration using direct plasma injection scheme  

SciTech Connect (OSTI)

A new set of vanes of radio frequency quadrupole (RFQ) accelerator was commissioned using highly charged iron beam. To supply high intensity heavy ion beams to the RFQ, direct plasma injection scheme (DPIS) with a confinement solenoid was adopted. One of the difficulties to utilize the combination of DPIS and a solenoid field is a complexity of electro magnetic field at the beam extraction region, since biasing high static electric field for ion extraction, RFQ focusing field, and the solenoid magnetic field fill the same space simultaneously. To mitigate the complexity, a newly designed magnetic field clamps were used. The intense iron beam was observed with bunched structure and the total accelerated current reached 2.5 nC.

Okamura, M., E-mail: okamura@bnl.gov [Brookhaven National Laboratory, Upton, New York 11973 (United States); RIKEN-BNL Research Center, Upton, New York 11973 (United States); Kanesue, T. [Brookhaven National Laboratory, Upton, New York 11973 (United States)] [Brookhaven National Laboratory, Upton, New York 11973 (United States); Yamamoto, T. [Waseda University, Shinjuku, Tokyo 169-8555 (Japan)] [Waseda University, Shinjuku, Tokyo 169-8555 (Japan); Fuwa, Y. [Kyoto University, Uji, Kyoto 611-0011 (Japan) [Kyoto University, Uji, Kyoto 611-0011 (Japan); RIKEN, Wako, Saitama 351-0198 (Japan)

2014-02-15T23:59:59.000Z

100

Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications  

Broader source: Energy.gov [DOE]

Specific designs and material properties have to be developed for gasoline particulate filters based on the different engine and exhaust gas characteristic of gasoline engines compared to diesel engines, e.g., generally lower levels of engine-out particulate emissions or higher GDI exhaust gas temperatures

Note: This page contains sample records for the topic "direct injection diesel" 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

Multiple Injection and Boosting Benefits for Improved Fuel Consumption on a Spray Guided Direct Injection Gasoline Engine  

Science Journals Connector (OSTI)

The combination of turbocharging and direct injection offers a significant potential for SI engines to improve fuel consumption, specific power output, raw emissions and ... shows the latest results of the T-SGDI...

Jason King; Oliver Bcker

2013-01-01T23:59:59.000Z

102

Performance of a direct diesel engine using aviation fuels blended with biodiesel  

Science Journals Connector (OSTI)

In this study, jet fuel (JF) and railroad fuel (D2) with SME blends (5%, 20%, 50%) were used in a four-cylinder, naturally aspirated, direct (DI) diesel engine. The engine was operated under full load and tested at various speeds to determine the engine's performance and exhaust emission characteristics. The experimental results show that as the SME ratio of the fuels increases, the break specific fuel consumption (BSFC) and exhaust temperature increase; the SME and its blends show a slight drop in engine performance. In this experiment, carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxides (NOx) and smoke opacity values were measured for each fuel. The results of the emission tests revealed that the oxygen content of SME provided a significant reduction in CO and smoke opacity emissions. However, when the test engine was fuelled by SME and its blends, NOx emissions increased.

Burak Gökalp; Hakan Serhad Soyhan; Halil ?brahim Sarac

2012-01-01T23:59:59.000Z

103

Effects of Biodiesel from Used Frying Palm Oil on the Exhaust Emissions of an Indirect Injection (IDI) Diesel Engine  

Science Journals Connector (OSTI)

McDonald (27) studied a 50% blend of yellow grease methyl ester with No. 2 diesel fuel (B50) used in a General Motors L65 GMT 600 turbo-charged, IDI diesel engine. ... This is typical for diesel engines because the air?fuel equivalence ratio slightly decreases with an increasing engine speed. ... A 1994 Dodge 2500 turbocharged and intercooled diesel pickup fueled with 100% Et ester of rapeseed oil was driven by personnel representing the University of Idaho, Agricultural Engineering Department from Moscow, Idaho to Los Angeles, California and back to Moscow and then from Moscow to Ocean City, Maryland and back to Moscow, Idaho. ...

Ahmet Necati Ozsezen; Mustafa Canakci; Cenk Sayin

2008-06-28T23:59:59.000Z

104

Combustion Characterization and Ignition Delay Modeling of Low- and High-Cetane Alternative Diesel Fuels in a Marine Diesel Engine  

Science Journals Connector (OSTI)

Mechanical and Aerospace Engineering Department, U.S. Naval Postgraduate School, Watkins Hall 700 Dyer Road Monterey, California 93943-5100, United States ... However, this study was done using an indirect injection diesel engine that may be uncharacteristic for typical diesel engines, which utilize direct injection. ... The IGD can, in turn, be used to provide qualitative or even quantitative prediction of other operational parameters such as peak pressure, maximum rate of pressure rise, or the general viability of the fuel in a diesel engine. ...

John Petersen; Doug Seivwright; Patrick Caton; Knox Millsaps

2014-07-10T23:59:59.000Z

105

An Experimental Study on the Two-Stage Combustion Characteristics of a Direct-Injection-Type HCCI Engine  

Science Journals Connector (OSTI)

Department of Mechanical Engineering, Hanyang University, 1271 Sa-1 Dong, Sangrok-gu Ansan-si, Gyenggi-do, 426-791, Korea ... This research was achieved using a direct-injection-type diesel method during the intake stroke in real single-cylinder engines, and observations were made regarding the cool and hot flame characteristics, according to the air:fuel ratio and engine speed (given in units of rpm), an additive that influences the auto-ignition and the start times, and the combustion and emission characteristics, according to these times. ... This work was supported by the Development of techniques on the fundamental and practical use of a HCCI project at Korea Automotive Technology Institute, 2004. ...

Kihyung Lee; Changsik Lee; Jeaduk Ryu; Hyungmin Kim

2005-02-12T23:59:59.000Z

106

Analysis of ignition behavior in a turbocharged direct injection dual fuel engine using propane and methane as primary fuels  

SciTech Connect (OSTI)

This paper presents experimental analyses of the ignition delay (ID) behavior for diesel-ignited propane and diesel-ignited methane dual fuel combustion. Two sets of experiments were performed at a constant speed (1800 rev/min) using a 4-cylinder direct injection diesel engine with the stock ECU and a wastegated turbocharger. First, the effects of fuel-air equivalence ratios (???© pilot ?¢???¼ 0.2-0.6 and ???© overall ?¢???¼ 0.2-0.9) on IDs were quantified. Second, the effects of gaseous fuel percent energy substitution (PES) and brake mean effective pressure (BMEP) (from 2.5 to 10 bar) on IDs were investigated. With constant ???© pilot (> 0.5), increasing ???© overall with propane initially decreased ID but eventually led to premature propane autoignition; however, the corresponding effects with methane were relatively minor. Cyclic variations in the start of combustion (SOC) increased with increasing ???© overall (at constant ???© pilot), more significantly for propane than for methane. With increasing PES at constant BMEP, the ID showed a nonlinear (initially increasing and later decreasing) trend at low BMEPs for propane but a linearly decreasing trend at high BMEPs. For methane, increasing PES only increased IDs at all BMEPs. At low BMEPs, increasing PES led to significantly higher cyclic SOC variations and SOC advancement for both propane and methane. Finally, the engine ignition delay (EID) was also shown to be a useful metric to understand the influence of ID on dual fuel combustion.

Polk, A. C.; Gibson, C. M.; Shoemaker, N. T.; Srinivasan, K. K.; Krishnan, S. R.

2011-10-05T23:59:59.000Z

107

3-Cylinder Turbocharged Gasoline Direct Injection: A High Value Solution for Euro VI Emissions  

Broader source: Energy.gov [DOE]

3-cylindery gasoline direct injection engines offer similar value in CO2 reduction capability (Euros/% CO2 reduction) at a significantly lower on-cost.

108

NOx Emissions of Alternative Diesel Fuels:? A Comparative Analysis of Biodiesel and FT Diesel  

Science Journals Connector (OSTI)

This study explores the diesel injection and combustion processes in an effort to better understand the differences in NOx emissions between biodiesel, Fischer?Tropsch (FT) diesel, and their blends with a conventional diesel fuel. Emissions studies were ...

James P. Szybist; Stephen R. Kirby; Andr L. Boehman

2005-05-14T23:59:59.000Z

109

Premixed direct injection nozzle for highly reactive fuels  

DOE Patents [OSTI]

A fuel/air mixing tube for use in a fuel/air mixing tube bundle is provided. The fuel/air mixing tube includes an outer tube wall extending axially along a tube axis between an inlet end and an exit end, the outer tube wall having a thickness extending between an inner tube surface having a inner diameter and an outer tube surface having an outer tube diameter. The tube further includes at least one fuel injection hole having a fuel injection hole diameter extending through the outer tube wall, the fuel injection hole having an injection angle relative to the tube axis. The invention provides good fuel air mixing with low combustion generated NOx and low flow pressure loss translating to a high gas turbine efficiency, that is durable, and resistant to flame holding and flash back.

Ziminsky, Willy Steve; Johnson, Thomas Edward; Lacy, Benjamin Paul; York, William David; Uhm, Jong Ho; Zuo, Baifang

2013-09-24T23:59:59.000Z

110

Dry low NOx combustion system with pre-mixed direct-injection secondary fuel nozzle  

DOE Patents [OSTI]

A combustion system includes a first combustion chamber and a second combustion chamber. The second combustion chamber is positioned downstream of the first combustion chamber. The combustion system also includes a pre-mixed, direct-injection secondary fuel nozzle. The pre-mixed, direct-injection secondary fuel nozzle extends through the first combustion chamber into the second combustion chamber.

Zuo, Baifang; Johnson, Thomas; Ziminsky, Willy; Khan, Abdul

2013-12-17T23:59:59.000Z

111

Development scenario for passenger-car diesel engines with optimised: Combustion processes to meet future emission standards  

Science Journals Connector (OSTI)

The main reason why the modern supercharged direct-injection diesel engine is so successful as a means of propelling passenger cars is because it is more efficient than spark-ignition engines in nearly every o...

Jrn Kahrstedt; Kai Behnk; Ansgar Sommer; Thorsten Wormbs

2003-10-01T23:59:59.000Z

112

METC research on coal-fired diesels  

SciTech Connect (OSTI)

The METC in-house Coal-Fueled Diesel Research project is part of the overall DOE effort to develop a technology base for diesel engines capable of operating on coal, shale oil or low-cost coal-derived fuels. The in-house effort started in 1985 as a test-bed for coal-derived liquid fuels and will end this fiscal year with the successful completion of METC`s diesel R&D program. Currently METC in-house research and development efforts focus on pilot chamber combustion in METC`s coal-water slurry (CWS) fueled diesel engine. A novel pilot chamber for a direct-injected, coal-fueled diesel engine has been designed and is being tested in METC`s single cylinder research diesel engine. The pilot chamber configuration allows for operation at extended load and speed conditions using 100 percent CWS and no other pilot fuel. The concept involves the use of a small volume chamber exterior to the main cylinder in which approximately 5 percent of the total fuel energy at full load conditions is injected. Lower NO{sub X} levels may be obtained due to leaner burning as well as broader stable performance using only CWS fuel.

McMillian, M.H. [USDOE Morgantown Energy Technology Center, WV (United States); Robey, E.H.; Addis, R.E. [EG and G Washington Analytical Services Center, Inc., Morgantown, WV (United States)

1993-11-01T23:59:59.000Z

113

Direct injection tunnel spectroscopy of a p-n junction Edward M. Likovich,1  

E-Print Network [OSTI]

Direct injection tunnel spectroscopy of a p-n junction Edward M. Likovich,1 Kasey J. Russell,1,a tunnel injection of electrons. In contrast to the metal-base transistor design of conventional ballistic the semiconductor before they scatter and thermal- ize to the chemical potential of the base layer. For systems

Russell, Kasey

114

Combustion and emissions of a direct injection gasoline engine using biofuels.  

E-Print Network [OSTI]

??Impact of biofuel (2-methlyfuran, 2,5-dimethylfuran and ethanol) on the performance of a gasoline direct injection engine has been investigated. MF demonstrates better knock resistance properties (more)

Wang, Chongming

2014-01-01T23:59:59.000Z

115

Characteristics of SME Biodiesel-Fueled Diesel Particle Emissions and the Kinetics of Oxidation  

Science Journals Connector (OSTI)

In general it is reported that biodiesel has a less adverse effect on human health than petroleum-based diesel fuel. ... The engine used in this study was a 1996 John Deere T04045TF250, which is a medium-duty, off-highway, direct-injection, 4 cylinder, 4 cycle, turbocharged diesel engine. ... These fuels were compared with a low-sulfur, petroleum #2 diesel fuel in a Caterpillar 3304, prechamber, 75 kW diesel engine, operated over heavy- and light-duty transient test cycles developed by the United States Bureau of Mines. ...

Heejung Jung; David B. Kittelson; Michael R. Zachariah

2006-07-19T23:59:59.000Z

116

Direct Capillary Gas Chromatography of Filter-Borne Particulate Emissions from Diesel Engines  

Science Journals Connector (OSTI)

......core (13). The hydrocarbons, which typically...products of the diesel combustion process (49...from incomplete combustion of fuel. Techniques...particulate- bound hydrocarbons have most often...analysis in individual heat-sealed plastic...Chromatograms and associated data were obtained via......

R.D. Cuthbertson; P.R. Shore

1988-03-01T23:59:59.000Z

117

Argonne Transportation - Diesel Award  

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

Team Receives DOE Award for Groundbreaking Diesel Fuel Spray Research Team Receives DOE Award for Groundbreaking Diesel Fuel Spray Research Jin Wang, Chris Powell, Yong Yue, and Steve Ciatti Recent DOE Award winners, (L-R) Jin Wang, Chris Powell, Yong Yue, and Steve Ciatti, stand in front of their fuel spray injection chamber. Using the synchrotron beam at the APS, the team is able to probe the fuel spray and study the process of combustion. A team of Argonne scientists (Jin Wang, Steve Ciatti, Chris Powell, and Yong Yue) recently won the 2002 National Laboratory Combustion and Emissions Control R&D Award for groundbreaking work in diesel fuel sprays. For the first time ever, the team used x-rays to penetrate through gasoline and diesel sprays and made detailed measurements of fuel injection systems for diesel engines. This technology uncovered a previously unknown

118

Recent Developments in BMW's Diesel Technology  

SciTech Connect (OSTI)

The image of BMW is very strongly associated to high power, sports biased, luxury cars in the premium car segment, however, particularly in the United States and some parts of Asia, the combination of a car in this segment with a diesel engine was up until now almost unthinkable. I feel sure that many people in the USA are not even aware that BMW produces diesel-powered cars. In Europe there is a completely contrary situation which, driven by the relative high fuel price, and the noticeable difference between gasoline and diesel prices, there has been a continuous growth in the diesel market since the early eighties. During this time BMW has accumulated more then 20 years experience in developing and producing powerful diesel engines for sports and luxury cars. BMW started the production of its 1st generation diesel engine in 1983 with a 2,4 l, turbocharged IDI engine in the 5 series model range. With a specific power of 35 kW/l, this was the most powerful diesel engine on the market at this time. In 1991 BMW introduced the 2nd generation diesel engine, beginning with a 2,5 l inline six, followed in 1994 by a 1,7 l inline four. All engines of this 2nd BMW diesel engine family were turbocharged and utilized an indirect injection combustion system. With the availability of high-pressure injection systems such as the common rail system, BMW developed its 3rd diesel engine family which consists of four different engines. The first was the 4-cylinder for the 3 series car in the spring of 1998, followed by the 6-cylinder in the fall of 1998 and then in mid 1999 by the worlds first V8 passenger car diesel with direct injection. Beginning in the fall of 2001 with the 4-cylinder, BMW reworked this DI engine family fundamentally. Key elements are an improved core engine design, the use of the common rail system of the 2nd generation and a new engine control unit with even better performance. Step by step, these technological improvements were introduce d to production for all members of this engine family and in all the different vehicle applications. In the next slide you can see the production volume of diesel engines by BMW. From the 1st family we produced {approx} 260,000 units over eight years and from the 2nd family {approx} 630,000 units were produced also during an eight year period. How successful the actual engine family with direct injection is can be seen in the increase of the production volume to 330,000 units for the year 2002 alone. The reason for this is that, in addition to the very low fuel consumption, this new engines provide excellent driving characteristics and a significant improvement in the level of noise and vibration. Page 2 of 5 In 2002, 26% of all BMW cars worldwide, and nearly 40% in Europe, were produced with a diesel engine under the hood. In the X5 we can see the biggest diesel success rate. Of all the X5 vehicles produced, 35% Worldwide and 68% in Europe are powered by a diesel engine.

Steinparzer, F

2003-08-24T23:59:59.000Z

119

Application of advanced diesel technology to inland waterway towboats. variable timing, electronic fuel injection. Final report, September 1985-January 1989  

SciTech Connect (OSTI)

This report represents the test and evaluation of advanced diesel technology components on the DDC Series 149 Marine engine. The tests were conducted on an inland-waterways towboat and consist of over 20,000 engine hours of operation during the testing. The Detroit Diesel Series 16V-149 engine rated at 900 SHP was tested aboard the M/V ESCATAWPA owned and operated by Warrior and Gulf Navigation Company. Both port and starboard engines were instrumented to measure engine operating parameters, propeller-shaft torque, and fuel consumption. The data were collected by a computer-based data-acquisition system and written to floppy disc for analysis. The tasks included: (1) baseline evaluation of naturally-aspirated (NA) engines; (2) upgrade both engines to turbocharged intercooled and blower bypassed (TIB) configuration and measure performance; (3) upgrade port engine with Detroit Diesel electronic control (DDEC) and measure performance; (4) change port engine to high-torque rise governor setting and measure performance; (5) upgrade starboard engine with DDEC.

Rowland, D.P.

1989-03-01T23:59:59.000Z

120

Evaluation of Oxydiesel as a Fuel for Direct-Injection Compression-Ignition Engines  

E-Print Network [OSTI]

speed and maximum power for 500 hours on a blend of ethanol, No. 2 diesel, and an additive as compared and diesel with a special additive, has been shown to be a promising new alternative fuel for existing diesel the mixing of diesel fuel with ethanol. The Illinois DCCA has embarked on a widespread research program

Illinois at Urbana-Champaign, University of

Note: This page contains sample records for the topic "direct injection diesel" 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

Testing Waste Olive Oil Methyl Ester as a Fuel in a Diesel Engine  

Science Journals Connector (OSTI)

In this sense, to gain knowledge about the implications of its use, waste olive oil methyl ester was evaluated as a fuel for diesel engines during a 50-h short-term performance test in a diesel direct-injection Perkins engine. ... At the beginning of the last century, Rudolph Diesel fueled a diesel engine with the oil of an African groundnut (peanut), thus demonstrating the idea of using vegetable oil as a substitute for No. 2 diesel fuel. ... In this way, we obtained a volume value for each trio of working values, making a brake-specific fuel consumption comparison between different tests or fuels possible, as shown in Table 2, where Vi is the volume value for each test and V50 corresponds to that of No. 2 diesel fuel after 50 h (the test that showed the minimum value). ...

M. P. Dorado; E. Ballesteros; J. M. Arnal; J. Gmez; F. J. Lpez Gimnez

2003-10-02T23:59:59.000Z

122

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

SciTech Connect (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

123

Multidimensional modelling of the effect of engine load on various exergy terms in an indirect injection diesel engine  

Science Journals Connector (OSTI)

In this investigation, the energy and exergy analyses are carried out in a Lister 8.1 IDI diesel engine for different loads (25%, 50%, 75% and full loads operation) at maximum torque engine speed (730 rpm). The energy analysis is done during a closed cycle using of a three dimensional CFD code. The results by this model for the pressure in cylinder at 50% and full load operations are compared with the corresponding experimental data and show good agreements. Second-law analysis is carried out by a developed in house computational code. Various rate and accumulative exergy components are identified and calculated separately with crank position for various loads. The results show that when the load increases from 25% to full load in steps by 25%, the percentage of combustion irreversibility decreases from 33.7% to 25% of fuel burn exergy. Also, exergy efficiency reaches its peak of 36.7% at 75% load.

S. Jafarmadar

2014-01-01T23:59:59.000Z

124

Performance and Exhaust Emissions of an Indirect-Injection (IDI) Diesel Engine When Using Waste Cooking Oil as Fuel  

Science Journals Connector (OSTI)

In addition, measurements were taken of the basic engine operational parameters such as engine speed, engine load, fuel consumption, pressure and temperature in the intake and exhaust systems, and the concentration of gaseous components and particulates in the exhaust gases. ... As can be seen, the torque and, consequently, the power of the engine are almost identical for both fuels WCO75 and D2, which is surprising, because the calorific value of the WCO is approximately 13% lower than that of D2 fuel. ... A series of engine tests provided adequate and relevant information that the biodiesel can be used as an alternative, environment friendly fuel in existing diesel engines without substantial hardware modification. ...

Ales Hribernik; Breda Kegl

2009-02-11T23:59:59.000Z

125

Mixing Correlations for Smoke and Fuel Consumption of Direct Injection Engines  

Science Journals Connector (OSTI)

The mixing of fuel with air in a diesel engine strongly dictates the specific fuel consumption and exhaust smoke. Many experimental studies reported the optimum swirl for a given diesel engine at a given operatin...

P. A. Lakshminarayanan; Yogesh V. Aghav

2010-01-01T23:59:59.000Z

126

Quantitative in-cylinder NO-LIF imaging in a realistic gasoline engine with spray-guided direct injection  

E-Print Network [OSTI]

Quantitative in-cylinder NO-LIF imaging in a realistic gasoline engine with spray-guided direct of engines with gasoline direct injection. Exhaust gas aftertreatment requires storage catalysts fractions in a gasoline engine with spray-guided direct injection using laser-induced fluorescence (LIF

Lee, Tonghun

127

2010-01-0166 Ethanol Content Estimation in Flex Fuel Direct Injection  

E-Print Network [OSTI]

2010-01-0166 Ethanol Content Estimation in Flex Fuel Direct Injection Engines Using In (FFVs) are able to operate on a blend of ethanol and gasoline in any volumetric concen- tration of up to 85% ethanol (93% in Brazil). The estima- tion of ethanol content is crucial for optimized and robust

Stefanopoulou, Anna

128

CARBON SEQUESTRATION VIA DIRECT INJECTION Howard J. Herzog, Ken Caldeira, and Eric Adams  

E-Print Network [OSTI]

CARBON SEQUESTRATION VIA DIRECT INJECTION Howard J. Herzog, Ken Caldeira, and Eric Adams and sequestration. Carbon sequestration is often associated with the planting of trees. As they mature, the trees INTRODUCTION The build-up of carbon dioxide (CO2) and other greenhouse gases in the Earth's atmosphere has

129

Formation of Nickel Silicide from Direct-Liquid-Injection Chemical-Vapor-Deposited Nickel Nitride Films  

E-Print Network [OSTI]

. Published April 28, 2010. Metal silicides such as TiSi2 and CoSi2 have been commonly used as the contactsFormation of Nickel Silicide from Direct-Liquid-Injection Chemical-Vapor-Deposited Nickel Nitride as the intermediate for subsequent conversion into nickel silicide NiSi , which is a key material for source, drain

130

Renewable Diesel  

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

Renewable Diesel Paraffinic (C 13 -C 18 ) No Oxygen No Double Bonds In Heart of Diesel Fuel (C 10 -C 22 ) High Cetane Feedstock Independent Cold Flow...

131

EXPERIMENTAL STUDY OF USING EMULSIFIED DIESEL FUEL ON THE PERFORMANCE AND POLLUTANTS EMITTED FROM FOUR STROKE WATER COOLED DIESEL ENGINE  

Science Journals Connector (OSTI)

A water?cooled four stroke four cylinder direct injection diesel engine was used to study the effect of emulsified diesel fuel on the engine performance and on the main pollutant emissions. Emulsified diesel fuels of 0% 5% 10% 15% 20% 25% and 30% water by volume were used. The experiments were conducted in the speed range from 1000 to 3000 rpm. It was found that in general using emulsified fuel improves the engine performance and reduces emissions. While the BSFC has a minimum value at 5% water and 2000 rpm the torque the BMEP and efficiency are found to have maximum values under these conditions. CO 2 was found to increase with engine speed and to decrease with water content. NO x produced from emulsified fuel is significantly less than that produced from pure diesel under the same conditions.

A. Sakhrieh; R. H. Fouad; J. A. Yamin

2009-01-01T23:59:59.000Z

132

Characteristics of the performance and emissions of a HSDI diesel engine running with cottonseed oil or its methyl ester and their blends with diesel fuel  

Science Journals Connector (OSTI)

An experimental study has been conducted to evaluate the use of various blends of cottonseed oil or its methyl ester (bio-diesel) with diesel fuel, in blend ratios from 10/90 up to 100/0, in a fully instrumented, four-stroke, High Speed Direct Injection (HSDI), Ricardo/Cussons 'Hydra' diesel engine. The tests were conducted using each of the above fuel blends or neat fuels, with the engine working at a medium and a high load. Volumetric fuel consumption, exhaust smokiness and exhaust-regulated gas emissions such as nitrogen oxides, carbon monoxide and unburnt hydrocarbons were measured. The differences in the performance and exhaust emissions from the baseline operation of the engine, that is, when working with neat diesel fuel, were determined and compared, as well as the differences between cottonseed oil or its methyl ester and their blends. Theoretical aspects of diesel engine combustion were used to aid the correct interpretation of the engine behaviour.

Constantine D. Rakopoulos; Kimon A. Antonopoulos; Dimitrios C. Rakopoulos; Emmanuel C. Kakaras; Efthimios G. Pariotis

2007-01-01T23:59:59.000Z

133

Kinetics of Diesel Nanoparticle Oxidation  

Science Journals Connector (OSTI)

The oxidation rates in air of diesel nanoparticles sampled directly from the exhaust stream of a medium-duty diesel engine were measured over the temperature range of 800?1140 C using online aerosol techniques. ... Particulate emission from diesel engines is currently a topic of great concern from both pollution and public health standpoints. ... In addition, the fundamental carbon-to-hydrogen ratio may be different in diesel particles as compared to the commonly used surrogates (15). ...

Kelly J. Higgins; Heejung Jung; David B. Kittelson; Jeffrey T. Roberts; Michael R. Zachariah

2003-03-25T23:59:59.000Z

134

Neat Tallow Combustion in a Large Diesel Engine for Electricity Generation from Waste  

Science Journals Connector (OSTI)

This paper explores how neat tallow can be used as a renewable fuel from waste for electricity generation in a large direct injection (DI) diesel engine capable of burning higher viscosity fuel. ... The fuel supply panel is linked with the main engine control panel, so that any alarm state of the plant (i.e., grid voltage fault, engine overheating) results in automatic change over into diesel modesystem flushing. ... Reforming Mini Reactor ...

Jakub Piaszyk; Perry Leung; Miroslaw L. Wyszynski; Athanasios Tsolakis; Barney Williams; Paul Latham; Andrew P. E. York

2012-10-15T23:59:59.000Z

135

Effects of the injection parameters and compression ratio on the emissions of a heavy-duty diesel engine  

Science Journals Connector (OSTI)

Homogenous charge compression ignition (HCCI) cases are compared for improvements on the combustion chamber design of the engine to achieve near zero particulate matter (PM) and NOx emissions. Therefore combustion simulations of the engine have been performed to find out emission generation in the cylinder. The interaction of air motion with high-pressure fuel spray has also been analysed. Finally, a comparison has been made considering the performance of the engine for various configurations such as compression ratio, injection timing, and cone angle. The results are widely in agreement qualitatively with the previous similar experimental and computational studies in the literature.

Mustafa Yilmaz; Hasan Köten; M. Zafer Gul

2012-01-01T23:59:59.000Z

136

Application of semi-direct injection for spark-ignition engine  

Science Journals Connector (OSTI)

This paper proposes an application of a motorcycle engine lean-burn system for improving engine efficiency and reducing exhaust emissions. This Semi-Direct Injection (SDI) system consists of a high swirl charge, injection during intake-valve opening, and air-assisted fuel injection. The fuel enters the cylinder directly through the intake valve near the middle intake stroke for a richer mixture around the spark plug. A 125 cc, 4-valve, Port-Fuel-Injection (PFI) engine was retrofitted by designing a control plate to enhance the swirl. The swirl ratio was increased to 3.8 and the lean limit was extended to 1.7 of lambda (excess air ratio). The engine was tested at the low-load region, which includes most operation points of the ECE-40 driving cycle. A complete engine performance map was conducted for comparison between SDI and original PFI engines. The results show that Brake-Specific Fuel Consumption (BSFC) decreased by 11.3%. Brake-specific exhaust emissions of NOx and CO decreased by 32.0% and 92.9%, respectively. The HC emission increased by 47.7%.

Yuh-Yih Wu; Bo-Chiuan Chen; Anh-Trung Tran

2010-01-01T23:59:59.000Z

137

A High Temperature Direct Vehicle Exhaust Flowmeter for Heavy Duty Diesel Emission Measurements.  

Broader source: Energy.gov [DOE]

Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

138

FY2001 Progress Report for the Spark Ignition Direct Injection R&D Program  

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

SPARK IGNITION, SPARK IGNITION, DIRECT INJECTION ENGINE R&D 2 0 0 1 A N N U A L P R O G R E S S R E P O R T U.S. Department of Energy Energy Efficiency and Renewable Energy Office of Transportation Technologies A C K N O W L E D G E M E N T We would like to express our sincere appreciation to Argonne National Laboratory and Computer Systems Management, Inc., for their artistic and technical contributions in preparing and publishing this report. In addition, we would like to thank all our program participants for their contributions to the programs and all the authors who prepared the project abstracts that comprise this report. U.S. Department of Energy Office of Transportation Technologies 1000 Independence Avenue, S.W. Washington, DC 20585-0121 FY 2001 Progress Report for the Spark Ignition Direct Injection R&D Program

139

Impact of Biofuel Blending on Diesel Soot Oxidation: Implications for Aftertreatment  

SciTech Connect (OSTI)

Control strategies for diesel particulate filters (DPFs) remain one of the most important aspects of aftertreatment research and understanding the soot oxidation mechanism is key to controlling regeneration. Currently, most DPF models contain simple, first order heterogeneous reactions oxidation models with empirically fit parameters. This work improves the understanding of fundamental oxidation kinetics necessary to advance the capabilities of predictive modeling, by leading to better control over regeneration of the device. This study investigated the effects of blending soybean-derived biodiesel fuel on diesel particulate emissions under conventional combustion from a 1.7L direct injection, common rail diesel engine. Five biofuel blend levels were investigated and compared to conventional certification diesel for the nanostructure, surface chemistry and major constituents of the soluble organic fraction (SOF) of diesel particulate matter (PM), and the relationship between these properties and the particulate oxidation kinetics.

Strzelec, Andrea [ORNL; Toops, Todd J [ORNL; Lewis Sr, Samuel Arthur [ORNL; Daw, C Stuart [ORNL; Foster, David [University of Wisconsin; Rutland, Prof. Christopher J. [University of Wisconsin; Vander Wal, Dr. Randy [NASA-Glenn Research Center, Cleveland

2009-01-01T23:59:59.000Z

140

FY2002 Progress Report for Fuels for Advanced Compression Ignition Direct Injection (CIDI) Engines  

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

Fuels for Advanced Compression Fuels for Advanced Compression Ignition Direct Injection (CIDI) Engines Energy Efficiency and Renewable Energy Office of FreedomCAR and Vehicle Technologies Approved by Stephen Goguen November 2002 Fuels for Advanced CIDI Engines FY 2002 Progress Report iii CONTENTS CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii INDEX OF PRIMARY CONTACTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v I. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II. FUEL/LUBRICANT EFFECTS TESTING ON ENGINE PERFORMANCE . . . . . . . . . 13 A. Oil Consumption Contribution to CIDI PM Emissions during Transient Operation . . . . . . . . . . . . . . . . . . . .13

Note: This page contains sample records for the topic "direct injection diesel" 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

Determination of desorption efficiency utilizing direct injection: a dynamic calibration system and phase equilibrium  

E-Print Network [OSTI]

) Ronald H. Williams B. S. , Purdue University B. S. , University of Arkansas Chairman of Advisory Committee: Dr . R. B. Konzen Three methods for determining desorption efficiency for or ganic solvents adsorbed on activated charcoal were compared.... The three methods involved a dynamic calibra- tion system, direct injection, and phase equilibrium. The methods differed in the manner in which the analyte was placed on the adsorbent. The desorption efficiencies ob- tained using the dynamic calibration...

Williams, Ronald H

2012-06-07T23:59:59.000Z

142

Modeling Combustion Control for High Power Diesel Mode Switching...  

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

Combustion Control for High Power Diesel Mode Switching Modeling Combustion Control for High Power Diesel Mode Switching Poster presentation given at the 16th Directions in...

143

Modeling deposit formation in diesel injector nozzle  

E-Print Network [OSTI]

Formation of deposit in the diesel injector nozzle affects the injection behavior and hinders performance. Under running condition, deposit precursors are washed away by the ensuing injection. However, during the cool down ...

Sudhiesh Kumar, Chintoo

2009-01-01T23:59:59.000Z

144

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

SciTech Connect (OSTI)

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

145

An experimental investigation of high performance natural gas engine with direct injection  

Science Journals Connector (OSTI)

This paper presents experimental results of a new compressed natural gas direct injection (CNG-DI) engine that has been developed from modification of a multi cylinder gasoline port injection (PI) engine. The original gasoline-PI engine was also modified to a CNG bi-fuel system. The test results obtained from CNG fuel using two different systems (i.e. bi-fuel and DI) have been investigated and compared with the original gasoline engine. The objective of this investigation is to compare the test results between CNG-DI, with CNG-BI and gasoline-PI engines with the same displacement volume. It was found that the CNG-DI engine produces similar brake power at 6000rpm and wide open throttle (WOT) but produces higher brake power at part load condition as compared to the original gasoline. The CNG-BI engine produces 23% lower brake power than the CNG-DI engine. The average brake specific fuel consumption (BSFC) of the CNG-DI engine was 0.28% and 8% lower than gasoline-PI and CNG-BI engines respectively. The CNG-DI engine reduces 42% \\{NOx\\} emission as compared to the base engine. However, the CNG-DI engine produces higher HC and CO emissions as compared to the base engine. This paper discusses a review on the direct injection (DI) natural gas engine with new information along with other investigations.

M.A. Kalam; H.H. Masjuki

2011-01-01T23:59:59.000Z

146

Experimental analysis of a diesel engine operating in DieselEthanol Dual-Fuel mode  

Science Journals Connector (OSTI)

Abstract The use of engines is necessary to keep the world moving. Such engines are fed mainly by fossil fuels, among these, the diesel. The operation and the behavior of engines in different thermodynamic cycles, with common fossil fuels, it is still challenging but, in general, it has well known and documented data. On the other hand, for alternative fuels, there is still demand of experimental data, particularly considering that it is desirable, most of the times, the use of a system with dual mode (reversible). Such systems are called Dual-Fuel, it brings a greater degree of freedom, but imply in technological challenges. In this paper we used an engine operating with single cylinder direct injection diesel and port ethanol injection system in Dual-Fuel mode with a 100% electronically controlled calibration. The methodology applied was, once the engine calibration was given toachieve the best specific fuel consumption or the MBT (Maximum Brake Torque) in each load condition, to gradually substitute the diesel oil by ethanol in compliance with the requirements established. Comparisons were made among working conditions considering the rate of diesel substitution and the energy indicated efficiency. Initially, the flow structure in the combustion chamber was tested in both quiescent and high swirl modes. Compression ratios were adjusted at 3 different levels: 14:1, 16:1 and 17:1. It was tested two injectors, the first one of 35g/s and another of 45g/s. Regarding pressure diesel injection, 4 levels were investigated namely 800, 1000, 1200 and 1400bar.

Roberto Freitas Britto Jr.; Cristiane Aparecida Martins

2014-01-01T23:59:59.000Z

147

Combustion and emission characteristics of a turbocharged diesel engine using high premixed ratio of methanol and diesel fuel  

Science Journals Connector (OSTI)

Abstract The combustion and emission characteristics of a dual fuel diesel engine with high premixed ratio of methanol (PRm) were investigated. Experiments were performed on a 6-cylinder turbocharged, inter-cooling diesel engine. Methanol was injected through the intake port and ignited by direct injected diesel in the cylinder, the maximum \\{PRm\\} was over 70%. The experimental results showed that with high PRm, the maximum in-cylinder pressure increased from medium to high engine load but varied little or even decreased at low engine speed and load. High \\{PRm\\} prolonged the ignition delay but shortened the combustion duration and decreased the in-cylinder gas temperature at ignition timing. Hydrocarbons (HC), carbon monoxide (CO), formaldehyde emissions and the proportion of nitrogen dioxide (NO2) in nitrogen oxides (NOX) increased significantly with the increase of \\{PRm\\} while NOX and dry soot emissions were significantly reduced, which meant the trade-off relationship between NOX and soot emissions disappeared. The increased HC, CO and formaldehyde emissions could be effectively reduced by diesel oxidation catalyst (DOC) when the exhaust gas temperature reached the light off temperature of the DOC. After DOC, the NO2 proportion in NOX was greatly reduced to less than that of baseline engine at methanol premixed mode but increased slightly at pure diesel mode. The maximum \\{PRm\\} was confined by in-cylinder pressure at high engine speed and load. But at low engine speed and load, it was confined by the high emissions of HC, CO and formaldehyde even after DOC.

Lijiang Wei; Chunde Yao; Quangang Wang; Wang Pan; Guopeng Han

2015-01-01T23:59:59.000Z

148

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

149

Turbocharged Spark Ignited Direct Injection- A Fuel Economy Solution for The US  

Broader source: Energy.gov [DOE]

Turbocharged SIDI is the most promising advanced gasoline technology; combines existing & proven technologies in a synergistic manner, offers double digit fuel economy benefits, much lower cost than diesel or hybrid.

150

Caterpillar Light Truck Clean Diesel Program  

SciTech Connect (OSTI)

In 1998, light trucks accounted for over 48% of new vehicle sales in the U.S. and well over half the new Light Duty vehicle fuel consumption. The Light Truck Clean Diesel (LTCD) program seeks to introduce large numbers of advanced technology diesel engines in light-duty trucks that would improve their fuel economy (mpg) by at least 50% and reduce our nation's dependence on foreign oil. Incorporating diesel engines in this application represents a high-risk technical and economic challenge. To meet the challenge, a government-industry partnership (Department of Energy, diesel engine manufacturers, and the automotive original equipment manufacturers) is applying joint resources to meet specific goals that will provide benefits to the nation. [1] Caterpillar initially teamed with Ford Motor Company on a 5 year program (1997-2002) to develop prototype vehicles that demonstrate a 50% fuel economy improvement over the current 1997 gasoline powered light truck vehicle in this class while complying with EPA's Tier II emissions regulations. The light truck vehicle selected for the demonstration is a 1999 Ford F150 SuperCab. To meet the goals of the program, the 4.6 L V-8 gasoline engine in this vehicle will be replaced by an advanced compression ignition direct injection (CIDI) engine. Key elements of the Caterpillar LTCD program plan to develop the advanced CIDI engine are presented in this paper.

Robert L. Miller; Kevin P. Duffy; Michael A. Flinn; Steve A. Faulkner; Mike A. Graham

1999-04-26T23:59:59.000Z

151

Organic gas emissions from a stoichiometric direct injection spark ignition engine operating on ethanol/gasoline blends  

E-Print Network [OSTI]

The organic gas emissions from a stoichiometric direct injection spark ignition engine operating on ethanol/gasoline blends have been assessed under warmed-up and cold idle conditions. The speciated emissions show that the ...

Kar, Kenneth

152

Particulate Matter Emissions from a Direct Injection Spark Ignition Engine under Cold Fast Idle Conditions for Ethanol-Gasoline Blends  

E-Print Network [OSTI]

The engine out particular matter number (PN) distributions at engine coolant temperature (ECT) of 0 C to 40 C for ethanol/ gasoline blends (E0 to E85) have been measured for a direct-injection spark ignition engine under ...

Dimou, Iason

153

Reducing Emissions of a Diesel Engine Using Fumigation Ethanol and a Diesel Oxidation Catalyst  

Science Journals Connector (OSTI)

Reducing Emissions of a Diesel Engine Using Fumigation Ethanol and a Diesel Oxidation Catalyst ... Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China ... In contrast to the conventional approach of using ethanol in spark-ignition engines, this study demonstrates the potential of ethanol utilization in diesel engines using dual-fuel combustion, where ethanol is injected into the intake manifold and diesel ... ...

K. S. Tsang; Z. H. Zhang; C. S. Cheung; T. L. Chan

2010-10-14T23:59:59.000Z

154

A diesel engine study of conventional and alternative diesel and jet fuels: Ignition and emissions characteristics  

Science Journals Connector (OSTI)

Abstract Measurements of ignition delay, CO and NO emissions, and fuel consumption were carried out in a light-duty single-cylinder direct-injection diesel engine for operation with petroleum and alternative hydroprocessed and FischerTropsch diesel and jet fuels. Ignition measurements carried out for a fixed engine speed and injection timing quantify the decrease in in-cylinder ignition delay with increasing derived cetane number (DCN) over a range of DCN relevant to diesel engine operation (DCN=4080) and show no discernible dependence of ignition delay on other fuel properties. Brake specific fuel consumption (BSFC) was found to decrease with increasing DCN with strong correlation due to a reduction in ignition time for fixed-injection-timed operation. Brake specific CO emissions were also found to decrease with increasing DCN due to increased time provided for CO burn out due to earlier ignition. Brake specific NO emissions were found to decrease with increasing hydrogen-to-carbon (H/C) ratio, due to the lower peak combustion temperatures and thermal \\{NOx\\} occurring for fuels with higher H/C.

Sandeep Gowdagiri; Xander M. Cesari; Mingdi Huang; Matthew A. Oehlschlaeger

2014-01-01T23:59:59.000Z

155

Effect of direct liquid water injection and interdigitated flow field on the performance of proton exchange membrane fuel cells  

E-Print Network [OSTI]

70-108B One Cyclotron Road Berkeley, California 94720 December 2, 1997 Key Words: Proton Exchange Membrane fuel cells, humidification, gas distribution, direct liquid water injection, interdigitated flow fields. * Corresponding... of the catalyst layers were made of waterproof, carbon fiber cloths. Liquid water was injected by two metering pumps into two heated stainless steel coils, where it was preheated to the cell operating temperatures, and then directly into the gas streams...

Wood, D. L.; Yi, Y. S.; Nguyen, Trung Van

1998-01-01T23:59:59.000Z

156

Linear accelerator design study with direct plasma injection scheme for warm dense matter  

SciTech Connect (OSTI)

Warm Dense Matter (WDM) is a challenging science field, which is related to heavy ion inertial fusion and planetary science. It is difficult to expect the behavior because the state with high density and low temperature is completely different from ideal condition. The well-defined WDM generation is required to understand it. Moderate energy ion beams ({approx} MeV/u) slightly above Bragg peak is an advantageous method for WDM because of the uniform energy deposition. Direct Plasma Injection Scheme (DPIS) with a Interdigital H-mode (IH) accelerator has a potential for the beam parameter. We show feasible parameters of the IH accelerator for WDM. WDM physics is a challenging science and is strongly related to Heavy Ion Fusion science. WDM formation by Direct Plasma Injection Scheme (DPIS) with IH accelerator, which is a compact system, is proposed. Feasible parameters for IH accelerator are shown for WDM state. These represents that DPIS with IH accelerator can access a different parameter region of WDM.

Kondo, K.; Kanesue, T; Okamura, M.

2011-03-28T23:59:59.000Z

157

An investigation of high pressure/late cycle injection of CNG (compressed natural gas) as a fuel for rail applications  

SciTech Connect (OSTI)

This report describes a demonstration effort to investigate the use of natural gas in a medium-speed diesel engine. The effort was unique in the sense that natural gas was injected directly into the combustion chamber late in the compression stroke, as a high pressure gas rather than through low pressure fumigation or low pressure injection early in the compression stroke. Tests were performed on a laboratory two-cylinder, two-stroke cycle medium-speed diesel engine in an attempt to define its ability to operate on the high pressure/late cycle injection concept and to define the performance and emission characteristics of the engine under such operation. A small quantity of No.-2 diesel fuel was injected into the cylinder slightly before the gas injection to be used as an ignition source for the gas. Pilot (diesel fuel) and main (natural gas) timing and injection duration were systematically varied to optimize engine performance. The test demonstrated that the medium-speed engine was capable of attaining full rated speed and load (unlike the low pressure approach) with very low percentages of pilot injection with the absence of knock. Thermal efficiency was as much as 10 percent less than thermal efficiency levels obtained with neat diesel fuel. This was primarily due to the placement and injection characteristics of the pilot and main injectors. Optimization of the injection system would undoubtedly result in increased thermal efficiency. 11 figs., 4 tabs.

Wakenell, J.F.; O'Neal, G.G.; Baker, Q.A.; Urban, C.M.

1988-04-01T23:59:59.000Z

158

Experimental investigation of direct injection charge cooling in optical GDI engine using tracer-based PLIF technique  

Science Journals Connector (OSTI)

Abstract Investigation of direct injection charge cooling effects is indispensable in design and development of new combustion systems for Gasoline Direct Injection (GDI) engines. The charge cooling can be utilized to increase engine volumetric efficiency or compression ratio. It can be employed to suppress pre-ignition of highly boosted downsized engines or knocking combustion of naturally aspirated engines. The main purpose of this work was to develop an experimental setup for quantitative measurements of charge cooling during fuel injection process inside the combustion chamber of a GDI engine with optical access. For this purpose a tracer-based two-line Planar Laser Induced Fluorescence (PLIF) technique was implemented for the measurements. A specially designed Constant Volume Chamber (CVC) was utilized for quasi in situ calibration measurement so in-cylinder charge temperature measurements can be achieved independent of the photophysical model of dopant tracer. The thermometry technique was evaluated by measurements of average in-cylinder charge temperature during compression stroke for both motoring and firing cycles and comparing the results with temperature values calculated from in-cylinder pressure data assuming a polytropic compression. The PLIF technique was successfully utilized to quantify the extend of global temperature decrease as a result of direct injection charge cooling of two injection timings of 90 and 250CA ATDC and two injection quantities of 10 and 30mg/cycle. Test results demonstrated the capability of the two-line PLIF thermometry technique in quantitative study of direct injection charge cooling effects.

Mohammadreza Anbari Attar; Mohammad Reza Herfatmanesh; Hua Zhao; Alasdair Cairns

2014-01-01T23:59:59.000Z

159

Combustion and emission characteristics of diesel engine fuelled with methyl esters of pungam oil and rice bran oil  

Science Journals Connector (OSTI)

Biodiesel derived from vegetable oils and animal fats can be used in diesel engines with little or no modifications. In this work, the combustion, performance and emission characteristics of various biodiesel (rice bran oil and pungam oil) and their blends are evaluated in a direct injection diesel engine. Lower ignition delay, higher peak pressure and heat release rate with almost same brake thermal efficiency are obtained for 20% biodiesel blend as compared with diesel fuel. They exhibited lower unburned hydrocarbon, carbon monoxide and soot emissions with a penalty of higher NOx emissions.

G. Lakshmi Narayana Rao; N. Nallusamy; S. Sampath; K. Rajagopal

2008-01-01T23:59:59.000Z

160

ELECTRONIC FUEL INJECTION DIESEL LOCOMOTIVES  

E-Print Network [OSTI]

Modernisation Works (DMW), Patiala on August 13, a befitting gift to the nation on the occasion of the 64th and IIT/Kanpur Achieved purely indigenously due to collaborative efforts of RDSO and IIT/Kanpur at DMW

Jagannatham, Aditya K.

Note: This page contains sample records for the topic "direct injection diesel" 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

Performance and exhaust emissions of a two-stroke spark-ignition engine with a direct-injection system  

Science Journals Connector (OSTI)

A direct fuel-injection system has been adapted to a small two-stroke spark-ignition engine to prevent the charge from flowing through the cylinder during the scavenging process. The injection system consists of a jerk-type pump and a single-hole nozzle which supplies gasoline to the cylinder. Engine tests were carried out for comparison with the carburettor version of the same engine. The results show that the direct-injection version can achieve greatly improved thermal efficiency and lower HC and CO emissions without intake throttling. In addition, NOx can be reduced to a much lower level than that of the ordinary four-stroke engine. Heat release analysis and high-speed photography indicate that stratified charge combustion takes place in the direct-injection engine.

Yasuhiro Daisho; Takeshi Saito; Noriaki Ishibe; Mitsuhiro Tsukada; Masashi Yukawa

1991-01-01T23:59:59.000Z

162

Novel injector techniques for coal-fueled diesel engines  

SciTech Connect (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

163

Direct injection of ionospheric O sup + into the dayside low latitude boundary layer  

SciTech Connect (OSTI)

Observations from the AMPTE/Charge Composition Explorer (AMPTE/CCE) indicate the presence of two distinct O{sup +} populations in the dayside subsolar low latitude boundary layer during some periods of northward Interplanetary Magnetic Field (IMF). The first population is O{sup +} convected into the boundary layer from the outer magnetosphere and has been reported previously. It is suggested here that the new, second, O{sup +} population is injected into the dayside boundary layer directly from the high latitude ionosphere. This second population can have a significant density and distinct characteristics such as field-aligned flow relative to boundary layer H{sup +} that modify both the plasma composition and dynamics in the low latitude boundary layer. {copyright} American Geophysical Union 1989

Fuselier, S.A.; Klumpar, D.M.; Peterson, W.K.; Shelley, E.G. (Lockheed Palo Alto Research Laboratory, Palo Alto, California (US))

1989-10-01T23:59:59.000Z

164

Ethanol diesel dual fuel clean combustion with FPGA enabled control  

Science Journals Connector (OSTI)

Sophisticated engine controls have progressively become vital enablers for implementing clean and efficient combustion. The low temperature combustion in diesel engines is a viable combustion mode that offers ultra-low nitrogen oxides and dry soot emissions, yet only feasible under tightly controlled operating conditions. In this work, the dual fuel application of ethanol and diesel is studied for clean and efficient combustion. A set of real-time controllers has been configured to control the common-rail pressure and injection events, in concert with the use of two fuels in a high compression ratio diesel engine. An improved control algorithm has been implemented into the field programmable gate array devices to promptly execute the injection commands of the port and direct injection events. Such reliable and prompt control of fuel injection has been identified as critical to safely enable simultaneously low nitrogen oxides and soot combustion, especially when excessive or inadequate rate of exhaust gas recirculation is imminent. High load clean combustion was achieved with the improved control system.

Xiaoye Han; Jimi Tjong; Graham T. Reader; Ming Zheng

2014-01-01T23:59:59.000Z

165

Influence of using emulsified diesel fuel on the performance and pollutants emitted from diesel engine  

Science Journals Connector (OSTI)

Abstract This manuscript investigates the effect of emulsified diesel fuel on the engine performance and on the main pollutant emissions for a water-cooled, four stroke, four cylinders, and direct injection diesel engine. Emulsified diesel fuels with water content of range 030% by volume were used. The experiments were conducted in the speed range from 1000 to 3000rpm. It was found that, in general, the using emulsified fuel improves the engine performance and reduces emissions. While the brake specific fuel consumption (BSFC) has a minimum value at 5% water content and 2000rpm. The torque (T), the break mean effective pressure (BMEP) and thermal efficiency (?th) are found to have maximum values under these conditions. The emission CO2 was found to increase with engine speed and to decrease with water content. \\{NOx\\} produced from emulsified fuel is significantly less than that produced from pure diesel under the same conditions. And as the percentage of water content in the emulsion increases, the emitted amount of oxygen also increases.

Ali Alahmer

2013-01-01T23:59:59.000Z

166

X-Ray Characterization of Diesel Sprays | Department of Energy  

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

for Visualizing Fuel Injection Process and Diesel Sprays Integrated Nozzle Flow, Spray, Combustion, & Emission Modeling using KH-ACT Primary Breakup Model & Detailed Chemistry...

167

Ethanol fuel for diesel tractors  

SciTech Connect (OSTI)

The use of ethanol fuel in turbocharged diesel tractors is considered. The investigation was performed to evaluate the conversion of a diesel tractor for dual-fueling with ethanol by attaching a carburetor to the inlet air system or with the use of an alcohol spray-injection kit. In this system the mixture of water and alcohol is injected into the air stream by means of pressure from the turbocharger. The carburetor was attached to a by-pass apparatus which allowed the engine to start and shut off on diesel alone. Approximately 46% of the energy for the turbocharged 65 kW diesel tractor could be supplied by carbureted ethanol, and about 30% by the spray-injection approach. Knock limited the extent of substitution of ethanol for diesel fuel. The dual-fueling with ethanol caused a slight increase in brake thermal efficiency. Exhaust temperatures were much lower for equivalent high torque levels. Maximum power was increased by 36% with the spray-injection approach and about 59% with carburetion.

da Cruz, J.M.

1981-01-01T23:59:59.000Z

168

Diesel Links  

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

Links Links Exit Fueleconomy.gov The links below are to pages that are not part of the fueleconomy.gov Web site. We offer these external links for your convenience in accessing additional information that may be useful or interesting to you. Diesel Vehicles and Manufacturers Audi A3 (TDI models) A6 (TDI models) A7 (TDI models) A8 L (TDI model) Q5 (TDI models) Q7 (TDI models) BMW 328d Sedan 328d xDrive Sedan 328d xDrive Sports Wagon 535d Sedan 535d xDrive Sedan Chevrolet Cruze Turbo Diesel Jeep Grand Cherokee EcoDiesel Mercedes-Benz E250 BlueTEC GL350 BlueTEC GLK250 BlueTEC ML350 BlueTEC Porsche Cayenne Diesel Volkswagen Beetle (TDI models) Beetle Convertible (TDI models) Golf (TDI models) Jetta (TDI models) Jetta Sportwagen (TDI models) Passat (TDI models) Touareg (TDI models) Diesel-Related Information

169

Control of Variable Geometry Turbocharged Diesel Engines for Reduced Emissions  

E-Print Network [OSTI]

in a Diesel engine equipped with a variable geometry tur- bocharger (VGT) and an external exhaust gas INJECTION EXHAUST MANIFOLD EGR VALVE EGR COOLER AIR EXHAUST Figure 1: Schematic representation of the DieselControl of Variable Geometry Turbocharged Diesel Engines for Reduced Emissions A.G. Stefanopoulouz

Stefanopoulou, Anna

170

Particle Number and Size Emissions from a Small Displacement Automotive Diesel Engine: Bioderived vs Conventional Fossil Fuels  

Science Journals Connector (OSTI)

General Motors Powertrain Europe, Corso Castelfidardo 36, 10138 Torino, Italy ... The experiments were carried out at the Politecnico di Torino on a modern small displacement, turbocharged, common-rail Euro 5 direct injection (DI) automotive diesel engine, one of the smallest engines on the market, considering unit displacement. ...

Federico Millo; Davide Simone Vezza; Theodoros Vlachos; Andrea De Filippo; Claudio Ciaravino; Nunzio Russo; Debora Fino

2012-01-11T23:59:59.000Z

171

EPA Diesel Update  

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

engines - Diesel vehicles have been available in Europe for many years - Diesel market penetration increased significantly coincidental with new diesel technologies * Industry...

172

Low Temperature Catalyst for Fuel Injection System  

Broader source: Energy.gov [DOE]

A low temperature oxidation catalyst applied to a DOC and DPF combined with a unique fuel injection system remove soot from a diesel exhaust system.

173

Further improvement of conventional diesel NOx aftertreatment...  

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

More Documents & Publications Future Directions in Engines and Fuels Diesel Passenger Car Technology for Low Emissions and CO2 Compliance A View from the Bridge...

174

Measurement of elemental speciation by liquid chromatography -- inductively coupled plasma mass spectrometry (LC-ICP-MS) with the direct injection nebulizer (DIN)  

SciTech Connect (OSTI)

This thesis is divided into 4 parts: elemental speciation, speciation of mercury and lead compounds by microbore column LC-ICP-MS with direct injection nebulization, spatially resolved measurements of size and velocity distributions of aerosol droplets from a direct injection nebulizer, and elemental speciation by anion exchange and size exclusion chromatography with detection by ICP-MS with direct injection nebulization. Tabs, figs, refs.

Shum, S.

1993-05-01T23:59:59.000Z

175

DIESEL FUEL LUBRICATION  

SciTech Connect (OSTI)

The diesel fuel injector and pump systems contain many sliding interfaces that rely for lubrication upon the fuels. The combination of the poor fuel lubricity and extremely tight geometric clearance between the plunger and bore makes the diesel fuel injector vulnerable to scuffing damage that severely limits the engine life. In order to meet the upcoming stricter diesel emission regulations and higher engine efficiency requirements, further fuel refinements that will result in even lower fuel lubricity due to the removal of essential lubricating compounds, more stringent operation conditions, and tighter geometric clearances are needed. These are expected to increase the scuffing and wear vulnerability of the diesel fuel injection and pump systems. In this chapter, two approaches are discussed to address this issue: (1) increasing fuel lubricity by introducing effective lubricity additives or alternative fuels, such as biodiesel, and (2) improving the fuel injector scuffing-resistance by using advanced materials and/or surface engineering processes. The developing status of the fuel modification approach is reviewed to cover topics including fuel lubricity origins, lubricity improvers, alternative fuels, and standard fuel lubricity tests. The discussion of the materials approach is focused on the methodology development for detection of the onset of scuffing and evaluation of the material scuffing characteristics.

Qu, Jun [ORNL

2012-01-01T23:59:59.000Z

176

Pollution duality in turbocharged heavy duty diesel engine  

Science Journals Connector (OSTI)

Diesel engine designers are faced with increasingly stringent social demands to reduce emissions while maintaining high performance. Several strategies are considered, such as the advanced fuel system, the cooled exhaust gas recirculation (EGR), the particulate filter, the NOx after-treatment, the oxidation catalyst, the advanced control techniques and the alternative combustion. These strategies have been tuned to achieve the lowest engine exhaust gas emissions. The major problem of diesel engine pollution is the NOx and soot formation. Their antagonistic evolution according to the air/fuel ratio is well-known, and requires a good compromise. In this article, a numerical investigation was carried out using the KIVA-3v code. The aim deals with the influence of some engine parameters on the performances and the pollutant (NOx-soot) formation of a turbocharged heavy duty direct injection diesel engine. The numerical simulations were achieved to capture independently the effects of engine operating parameters such as the fuel injection timing, the fuel injection duration, the piston bowl diameter and the EGR rate. The obtained results are discussed and some conclusions are developed.

M. Bencherif; A. Liazid; M. Tazerout

2009-01-01T23:59:59.000Z

177

Enlaces Diesel  

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

Enlaces Diesel Enlaces Diesel Los siguientes enlaces no son parte del sitio ahorremosgasolina.gov. Le ofrecemos estos enlaces externos para que a su conveniencia tenga acceso a información adicional que puede serle útil o interesante para usted. Vehículos y Fabricantes Diesel Audi A3 (modelos TDI) Q7 (modelos TDI) Mercedes-Benz Mercedes E350 BlueTEC Mercedes GL350 BlueTEC Mercedes ML350 BlueTEC Mercedes R350 BlueTEC Volkswagen Golf (modelos TDI) Jetta (modelos TDI) Jetta Sportwagen (modelos TDI) Touareg (modelos TDI) Información Sobre el Diesel Biodiesel Abundante información sobre el biodiesel proporcionada por el Centro de Datos de Combustibles Alternativos y Vehículos Avanzados (AFDC) Mezclas de Biodiesel Ícono de Adobe Acrobat Informe sobre el debate de las mezclas de biodiesel desarrollado por el programa de Ciudades Limpias del EERE.

178

Formation of Nickel Silicide from Direct-liquid-injection Chemical-vapor-deposited Nickel Nitride Films  

SciTech Connect (OSTI)

Smooth, continuous, and highly conformal nickel nitride (NiN{sub x}) films were deposited by direct liquid injection (DLI)-chemical vapor deposition (CVD) using a solution of bis(N,N{prime}-di-tert-butylacetamidinato)nickel(II) in tetrahydronaphthalene as the nickel (Ni) source and ammonia (NH{sub 3}) as the coreactant gas. The DLI-CVD NiNx films grown on HF-last (100) silicon and on highly doped polysilicon substrates served as the intermediate for subsequent conversion into nickel silicide (NiSi), which is a key material for source, drain, and gate contacts in microelectronic devices. Rapid thermal annealing in the forming gas of DLI-CVD NiNx films formed continuous NiSi films at temperatures above 400 C. The resistivity of the NiSi films was 15{mu}{Omega} cm, close to the value for bulk crystals. The NiSi films have remarkably smooth and sharp interfaces with underlying Si substrates, thereby producing contacts for transistors with a higher drive current and a lower junction leakage. Resistivity and synchrotron X-ray diffraction in real-time during annealing of NiNx films showed the formation of a NiSi film at about 440 C, which is morphologically stable up to about 650 C. These NiSi films could find applications in future nanoscale complementary metal oxide semiconductor devices or three-dimensional metal-oxide-semiconductor devices such as Fin-type field effect transistors for the 22 nm technology node and beyond.

Li, Z.; Gordon, R; Li, H; Shenai, D; Lavoie, C

2010-01-01T23:59:59.000Z

179

Hydrocarbon emissions in a homogeneous direct-injection spark engine : gasoline and gasohol  

E-Print Network [OSTI]

In order to better understand the effects on hydrocarbon emissions of loading, engine temperature, fuel type, and injection timing, a series of experiments was performed. The effect of loading was observed by running the ...

Tharp, Ronald S

2008-01-01T23:59:59.000Z

180

An investigation of dieselignited propane dual fuel combustion in a heavy-duty diesel engine  

Science Journals Connector (OSTI)

Abstract This paper presents a detailed experimental analysis of dieselignited propane dual fuel combustion on a 12.9-l, six-cylinder, production heavy-duty diesel engine. Gaseous propane was fumigated upstream of the turbocharger air inlet and ignited using direct injection of diesel sprays. Results are presented for brake mean effective pressures (BMEP) from 5 to 20bar and different percent energy substituted (PES) by propane at a constant engine speed of 1500rpm. The effect of propane PES on apparent heat release rates, combustion phasing and duration, fuel conversion and combustion efficiencies, and engine-out emissions of oxides of nitrogen (NOx), smoke, carbon monoxide (CO), and total unburned hydrocarbons (HC) were investigated. Exhaust particle number concentrations and size distributions were also quantified for dieselignited propane combustion. With stock engine parameters, the maximum propane PES was limited to 86%, 60%, 33%, and 25% at 5, 10, 15, and 20bar BMEPs, respectively, either by high maximum pressure rise rates (MPRR) or by excessive HC and CO emissions. With increasing PES, while fuel conversion efficiencies increased slightly at high \\{BMEPs\\} or decreased at low BMEPs, combustion efficiencies uniformly decreased. Also, with increasing PES, \\{NOx\\} and smoke emissions were generally decreased but these reductions were accompanied by higher HC and CO emissions. Exhaust particle number concentrations decreased with increasing PES at low loads but showed the opposite trends at higher loads. At 10bar BMEP, by adopting a different fueling strategy, the maximum possible propane PES was extended to 80%. Finally, a limited diesel injection timing study was performed to identify the optimal operating conditions for the best efficiency-emissions-MPRR tradeoffs.

Andrew C. Polk; Chad D. Carpenter; Kalyan Kumar Srinivasan; Sundar Rajan Krishnan

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "direct injection diesel" 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

Effect of Biodiesel Blending on the Speciation of Soluble Organic Fraction from a Light Duty Diesel Engine  

SciTech Connect (OSTI)

Soy methyl ester (SME) biodiesel was volumetrically blended with 2007 certification ultra low sulfur diesel (ULSD) fuel and run in a 1.7L direct-injection common rail diesel engine at one speed-load point (1500rpm, 2.6bar BMEP). Engine fueling rate and injection timing were adjusted to maintain a constant load, while particulate samples were collected in a diesel particulate filter (DPF) and with a dilution tunnel sampling train. The samples collected at these two locations were found to contain different levels of soluble organic fraction (SOF) and the different hydrocarbon species in the SOF. This observation indicates that traditional SOF measurements, in light of the specific sampling procedure used, may not be appropriate to DPF applications.

Strzelec, Andrea [ORNL] [ORNL; Storey, John Morse [ORNL] [ORNL; Lewis Sr, Samuel Arthur [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Foster, Prof. Dave [University of Wisconsin] [University of Wisconsin; Rutland, Prof. Christopher J. [University of Wisconsin] [University of Wisconsin

2010-01-01T23:59:59.000Z

182

Effects of Injector Conditions on the Flame Lift-Off Length of DI Diesel Sprays  

SciTech Connect (OSTI)

The effects of injection pressure and orifice diameter on the lift-off length of a direct-injection (DI) diesel spray (defined as the farthest upstream location of high temperature combustion) were investigated using a natural light emission imaging technique. The lift-off length experiments were conducted in a constant-volume combustion vessel under quiescent, heavy-duty DI diesel engine conditions using a Phillips research grade No.2 diesel fuel. The results show that natural light emission at 310 nm provides an excellent marker of the lift-off length. At this location, natural light emission at 310 nm is dominated by OH chemiluminescence generated by high-temperature combustion chemistry. Lift-off lengths determined from images of natural light emission at 310 nm show that as either injection pressure (i.e., injection velocity) or orifice diameter increase, the lift-off length increases. The observed lift-off length increase was linearly dependent on injection velocity, the same dependency as previously noted for gas jets. The lift-off length increase with increasing orifice diameter, however, is different than the independence of lift-off length on orifice diameter noted for gas jets An important overall observation was made by considering the lift-off length data in conjunction with data from recent investigations of liquid-phase fuel penetration and spray development. The combined data suggests that a systematic evolution of the relationship and interaction between various processes in a DI diesel spray has been occurring over time, as injection pressures have been increased and orifice diameters reduced as part of efforts to meet emissions regulations. The trends observed may eventually help explain effects of parameters such as injection pressure and orifice diameter on emissions.

D. L. Siebers; B. S. Higgins

2000-07-01T23:59:59.000Z

183

Effects of the blends containing low ratios of alternative fuels on the performance and emission characteristics of a diesel engine  

Science Journals Connector (OSTI)

The aim of this study is to experimentally investigate the effects of blends containing various alternative fuels and diesel fuel on the performance and emissions of a diesel engine. The considered parameters are brake power, specific fuel consumption and thermal efficiency as well as carbon monoxide, hydrocarbon and nitrogen oxide emissions. Blends of biodiesel, ethanol, methanol and vegetable oil with diesel fuel, each containing 15% alternative fuel in volume, were prepared. Then, these blends were tested in a naturally aspirated, direct injection diesel engine. The test results obtained with these blends were compared with those obtained with diesel fuel. It was found that the tested blends yielded usually different performance and emission characteristics compared to diesel fuel. The biodiesel blend resulted in performance parameters very close to those obtained in the use of diesel fuel. Ethanol and methanol blends yielded lower brake power, while they resulted in higher specific fuel consumption and lower carbon monoxide emissions. On the other hand, the vegetable oil blend yielded lower carbon monoxide emissions, while it caused only slight changes in the performance parameters.

Murat Karabektas; Gokhan Ergen; Murat Hosoz

2013-01-01T23:59:59.000Z

184

Ultrafast and quantitative X-tomography and simulation of hollow-cone gasoline direct-injection sprays.  

SciTech Connect (OSTI)

Gasoline direct injection (GDI) has the potential to greatly improve internal combustion engine performance through precise control of the injection rate, timing, and combustion of the fuel. A thorough characterization of the hydrodynamics of fuel injection has to come from a precise, quantitative analysis of the sprays, especially in the near-nozzle region. A lack of knowledge of the fuel-spray dynamics has severely limited computational modeling of the sprays and design of improved injection systems. Previously, the structure and dynamics of highly transient fuel sprays have never been visualized or reconstructed in three dimensions (3D) due to numerous technical difficulties. By using an ultrafast x-ray detector and intense monochromatic x-ray beams from synchrotron radiation, the fine structures and dynamics of 1-ms GDI fuel sprays from an outwardly opening nozzle were elucidated by a newly developed, ultrafast, microsecond computed microtomography (CT) technique. In a time-resolved manner, many detailed features associated with the transient fuel flows are readily observable in the quantitatively reconstructed 3D fuel spray density distribution as a result of the quantitative CT technique. More importantly, a computational fluid dynamics (CFD) simulation based on the Taylor analogy breakup (TAB) model has also been performed using the boundary and initial conditions obtained from the experiment data. The experimental and numerical results are in good agreement quantitatively. These results not only reveal the characteristics of the GDI fuel sprays with unprecedented detail, but will also facilitate realistic computational fluid dynamic simulations in highly transient, multiphase systems.

Liu, X.; Im, K-S; Wang, Y.; Wang, J.; Tate, M.W.; Ercan, A.; Schuette, D.R.; Gruner, S.M. (X-Ray Science Division); (Cornell Univ.)

2007-01-01T23:59:59.000Z

185

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

SciTech Connect (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

186

Near-frictionless carbon coatings for spark-ignited direct-injected fuel systems. Final report, January 2002.  

SciTech Connect (OSTI)

This report describes an investigation by the Tribology Section of Argonne National Laboratory (ANL) into the use of near-frictionless carbon (NFC) coatings for spark-ignited, direct-injected (SIDI) engine fuel systems. Direct injection is being pursued in order to improve fuel efficiency and enhance control over, and flexibility of, spark-ignited engines. SIDI technology is being investigated by the Partnership for a New Generation of Vehicles (PNGV) as one route towards meeting both efficiency goals and more stringent emissions standards. Friction and wear of fuel injector and pump parts were identified as issues impeding adoption of SIDI by the OTT workshop on ''Research Needs Related to CIDI and SIDI Fuel Systems'' and the resulting report, Research Needs Related to Fuel Injection Systems in CIDI and SIDI Engines. The following conclusions were reached: (1) Argonne's NFC coatings consistently reduced friction and wear in existing and reformulated gasolines. (2) Compared to three commercial DLC coatings, NFC provided the best friction reduction and protection from wear in gasoline and alternative fuels. (3) NFC was successfully deposited on production fuel injectors. (4) Customized wear tests were performed to simulate the operating environment of fuel injectors. (5) Industry standard lubricity test results were consistent with customized wear tests in showing the friction and wear reduction of NFC and the lubricity of fuels. (6) Failure of NFC coatings by tensile crack opening or spallation did not occur, and issues with adhesion to steel substrates were eliminated. (7) This work addressed several of the current research needs of the OAAT SIDI program, as defined by the OTT report Research Needs Related to Fuel Injection Systems in CIDI and SIDI Engines.

Hershberger, J.; Ozturk, O.; Ajayi, O. O.; Woodford, J. B.; Erdemir, A.; Fenske, G. R.

2002-04-05T23:59:59.000Z

187

Advantages of Oxygenates Fuels over Gasoline in Direct Injection Spark Ignition Engines  

Broader source: Energy.gov [DOE]

Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

188

Reformulated diesel fuel  

DOE Patents [OSTI]

Reformulated diesel fuels for automotive diesel engines which meet the requirements of ASTM 975-02 and provide significantly reduced emissions of nitrogen oxides (NO.sub.x) and particulate matter (PM) relative to commercially available diesel fuels.

McAdams, Hiramie T [Carrollton, IL; Crawford, Robert W [Tucson, AZ; Hadder, Gerald R [Oak Ridge, TN; McNutt, Barry D [Arlington, VA

2006-03-28T23:59:59.000Z

189

Cleaning Up Diesel Engines  

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

Other Mobile Sources Off-Road Diesel Equipment Heavy-Duty Diesel Trucks Diesel Ships, Trains PM 2.5 Emissions Trend PM 2.5 Emissions Trend California Emissions From the 2005...

190

Determination of Depleted Uranium in Urine via Isotope Ratio Measurements Using Large-Bore Direct Injection High Efficiency NebulizerInductively Coupled Plasma Mass Spectrometry  

Science Journals Connector (OSTI)

Inductively coupled plasma mass spectrometry (ICP-MS), coupled with a large-bore direct injection high efficiency nebulizer (LB-DIHEN), was utilized to determine the concentration and...

Westphal, Craig S; McLean, John A; Hakspiel, Shelly J; Jackson, William E; McClain, David E; Montaser, Akbar

2004-01-01T23:59:59.000Z

191

Heavy-Duty Diesel Vehicle Fuel Consumption Modeling Based on Road Load and Power Train Parameters  

E-Print Network [OSTI]

Injection Diesel Engine Fuel Consumption, SAE 971142, 11.engine load, engine speed, and fuel consumption. The tirevehicle speed, engine speed, fuel consumption, engine load,

Giannelli, R; Nam, E K; Helmer, K; Younglove, T; Scora, G; Barth, M

2005-01-01T23:59:59.000Z

192

Effect of the use of olivepomace oil biodiesel/diesel fuel blends in a compression ignition engine: Preliminary exergy analysis  

Science Journals Connector (OSTI)

Abstract Although biodiesel is among the most studied biofuels for diesel engines, it is usually produced from edible oils, which gives way to controversy between the use of land for fuel and food. For this reason, residues like olivepomace oil are considered alternative raw materials to produce biodiesel that do not compete with the food industry. To gain knowledge about the implications of its use, olivepomace oil methyl ester, straight and blended with diesel fuel, was evaluated as fuel in a direct injection diesel engine Perkins AD 3-152 and compared to the use of fossil diesel fuel. Performance curves were analyzed at full load and different speed settings. To perform the exergy balance of the tested fuels, the operating conditions corresponding to maximum engine power values were considered. It was found that the tested fuels offer similar performance parameters. When straight biodiesel was used instead of diesel fuel, maximum engine power decreased to 5.6%, while fuel consumption increased up to 7%. However, taking into consideration the Second Law of the Thermodynamics, the exergy efficiency and unitary exergetic cost reached during the operation of the engine under maximum power condition for the assessed fuels do not display significant differences. Based on the exergy results, it may be concluded that olivepomace oil biodiesel and its blends with diesel fuel may substitute the use of diesel fuel in compression ignition engines without any exergy cost increment.

I. Lpez; C.E. Quintana; J.J. Ruiz; F. Cruz-Peragn; M.P. Dorado

2014-01-01T23:59:59.000Z

193

Numerical simulation of turbulent jet primary breakup in Diesel engines  

E-Print Network [OSTI]

Numerical simulation of turbulent jet primary breakup in Diesel engines Peng Zeng1 Marcus Herrmann and Aerospace Engineering Arizona State University "Micro-Macro Modelling and Simulation of Liquid-Vapour Flows" IRMA Strasbourg, 23.Jan.2008 #12;Introduction DNS of Primary Breakup in Diesel Injection Phase

Helluy, Philippe

194

Water Content in Biodiesel, Diesel, and BiodieselDiesel Blends  

Science Journals Connector (OSTI)

Water Content in Biodiesel, Diesel, and BiodieselDiesel Blends ... In what concerns road transportation, biodiesel is being considered a good alternative to conventional diesels. ...

Patricia Bogalhos Lucente Fregolente; Leonardo Vasconcelos Fregolente; Maria Regina Wolf Maciel

2012-05-17T23:59:59.000Z

195

Educating Consumers: New Content on Diesel Vehicles, Diesel Exhaust...  

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

Educating Consumers: New Content on Diesel Vehicles, Diesel Exhaust Fluid, and Selective Catalytic Reduction Technologies on the AFDC Educating Consumers: New Content on Diesel...

196

Large Diesel Engine Lubrication  

Science Journals Connector (OSTI)

Centralized lubrication for slow-speed internal combustion engines ; Marine diesel engine lubrication ...

Hans Gaca; Jan Ruiter; Gtz Mehr; Theo Mang

2014-01-01T23:59:59.000Z

197

Complex Diesel Engine Simulation with Focus on Transient Operation  

Science Journals Connector (OSTI)

The engine bearings model takes into consideration the significant load variation during each engine cycle and, in general, the lubrication is hydrodynamic. ... Modern diesel engines are using common rail injection systems with electronically controlled injectors capable of very high injection pressure and multiple injection events per cycle. ...

Dinu Taraza; Naeim A. Henein; Radu Ceausu; Walter Bryzik

2008-02-12T23:59:59.000Z

198

Renewable Diesel | Department of Energy  

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

Renewable Diesel Renewable Diesel Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan....

199

Combustion Characteristics of Diesohol Using Biodiesel as an Additive in a Direct Injection Compression Ignition Engine under Various Compression Ratios  

Science Journals Connector (OSTI)

Studies on combustion characteristics are essential for the optimization of engine design with the use of alternative fuels as compression ignition (CI) engines are basically designed to operate with neat diesel. ... Fleisch et al.,(6) Kapus and Ofner,(7) and Sorenson and Mikkelsen(8) have studied the utilization of pure oxygenated fuels in diesel engines and found that they can achieve ultralow emissions without a fundamental change in the combustion system. ... Engines Research Laboratory in the Mechanical Engineering Department with modern computerized experimental facilities to the international standards. ...

V. Arul Mozhi Selvan; R. B. Anand; M. Udayakumar

2009-10-05T23:59:59.000Z

200

Combustion and performance of a diesel engine with preheated Jatropha curcas oil using waste heat from exhaust gas  

Science Journals Connector (OSTI)

Abstract The viscosity and density of CJO (crude Jatropha oil) were reduced by heating it using the heat from exhaust gas of a diesel engine with an appropriately designed helical coil heat exchanger. Experiments were conducted to evaluate the combustion characteristics of a DI (direct injection) diesel engine using PJO (preheated Jatropha oil). It exhibited a marginally higher cylinder gas pressure, rate of pressure rise and heat release rate as compared to HSD (high speed diesel) during the initial stages of combustion for all engine loadings. Ignition delay was shorter for PJO as compared to HSD. The results also indicated that BSFC (brake specific fuel consumption) and EGT (exhaust gas temperature) increased while BTE (brake thermal efficiency) decreased with PJO as compared to HSD for all engine loadings. The reductions in CO2 (carbon dioxide), HC (hydrocarbon) and \\{NOx\\} (nitrous oxide) emissions were observed for PJO along with increased CO (carbon monoxide) emission as compared to those of HSD.

Priyabrata Pradhan; Hifjur Raheman; Debasish Padhee

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "direct injection diesel" 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

Performance and emission characteristics of a diesel engine using esters of palm olein/soybean oil blends  

Science Journals Connector (OSTI)

In this experimental study, the engine performance and exhaust emissions of a diesel direct injection engine using mixed palm olein??soybean vegetable oil ethyl ester (POSEE) and methyl ester (POSME) have been examined. The results of experimental studies have shown that the torque and brake power output of an engine, which uses biodiesels, is slightly lower and specific fuel consumption is higher than in an engine using conventional diesel fuel. It has also been observed that there is a decrease in both carbon monoxide and hydrocarbon (HC) emissions, which indicates an advantage of exhaust emissions. Although methyl ester's CO2 emissions decreased compared with those of diesel fuel, NO and NOX emissions were higher with the biodiesels.

Imdat Taymaz; Mucahit Sengil

2010-01-01T23:59:59.000Z

202

Advanced Diesel Combustion with Low Hydrocarbon and Carbon Monoxide...  

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

Combustion with Low Hydrocarbon and Carbon Monoxide Emissions Advanced Diesel Combustion with Low Hydrocarbon and Carbon Monoxide Emissions Poster presented at the 16th Directions...

203

Diesel Particulate Oxidation Model: Combined Effects of Fixed...  

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

Volatile Carbon Diesel Particulate Oxidation Model: Combined Effects of Fixed & Volatile Carbon Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research...

204

Advanced Technology Light Duty Diesel Aftertreatment System  

Broader source: Energy.gov [DOE]

Light duty diesel aftertreatment system consisting of a DOC and selective catalytic reduction catalyst on filter (SCRF), close coupled to the engine with direct gaseous ammonia delivery is designed to reduce cold start NOx and HC emissions

205

Comparing the Performance of SunDiesel and Conventional Diesel...  

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

the Performance of SunDiesel and Conventional Diesel in a Light-Duty Vehicle and Engines Comparing the Performance of SunDiesel and Conventional Diesel in a Light-Duty Vehicle and...

206

Marine diesel generator from Yanmar  

SciTech Connect (OSTI)

A diesel generator series now available from Yanmar Diesel Engine Co. is designed to provide low fuel costs, direct burning of heavy fuel oil and long life in marine applications from 320 to 600 kW output. The new 6N18L generator sets are based on a six-cylinder, four-stroke, water-cooled engine (bore 180 x stroke 280 mm), which has rated speeds of 720 and 900 r/min. Compatible with mono-fuel ships, the generator engines are designed for operation on heavy fuels to 700 cSt (50{degree}C). This paper describes briefly the design and innovation of this system.

NONE

1996-03-01T23:59:59.000Z

207

Effect of E85 on RCCI Performance and Emissions on a Multi-Cylinder Light-Duty Diesel Engine - SAE World Congress  

SciTech Connect (OSTI)

This paper investigates the effect of E85 on load expansion and FTP modal point emissions indices under reactivity controlled compression ignition (RCCI) operation on a light-duty multi-cylinder diesel engine. A General Motors (GM) 1.9L four-cylinder diesel engine with the stock compression ratio of 17.5:1, common rail diesel injection system, high-pressure exhaust gas recirculation (EGR) system and variable geometry turbocharger was modified to allow for port fuel injection with gasoline or E85. Controlling the fuel reactivity in-cylinder by the adjustment of the ratio of premixed low-reactivity fuel (gasoline or E85) to direct injected high reactivity fuel (diesel fuel) has been shown to extend the operating range of high-efficiency clean combustion (HECC) compared to the use of a single fuel alone as in homogeneous charge compression ignition (HCCI) or premixed charge compression ignition (PCCI). The effect of E85 on the Ad-hoc federal test procedure (FTP) modal points is explored along with the effect of load expansion through the light-duty diesel speed operating range. The Ad-hoc FTP modal points of 1500 rpm, 1.0bar brake mean effective pressure (BMEP); 1500rpm, 2.6bar BMEP; 2000rpm, 2.0bar BMEP; 2300rpm, 4.2bar BMEP; and 2600rpm, 8.8bar BMEP were explored. Previous results with 96 RON unleaded test gasoline (UTG-96) and ultra-low sulfur diesel (ULSD) showed that with stock hardware, the 2600rpm, 8.8bar BMEP modal point was not obtainable due to excessive cylinder pressure rise rate and unstable combustion both with and without the use of EGR. Brake thermal efficiency and emissions performance of RCCI operation with E85 and ULSD is explored and compared against conventional diesel combustion (CDC) and RCCI operation with UTG 96 and ULSD.

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

2012-01-01T23:59:59.000Z

208

Diesel particulate filters  

Science Journals Connector (OSTI)

Is the broad market introduction of diesel particulate filters throughout Europe wishful thinking or reality? The challenges facing the introduction of diesel particulate filters with a fuel-borne catalyst...

Pierre Macaudire; Laurent Rocher; Wolfgang Naschke

2004-04-01T23:59:59.000Z

209

Diesel prices flat  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices flat The U.S. average retail price for on-highway diesel fuel saw no movement from last week. Prices remained flat at 3.89 a gallon on Monday, based on the weekly...

210

Diesel prices decrease  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices decrease The U.S. average retail price for on-highway diesel fuel fell to 4.05 a gallon on Monday. That's down 4.1 cents from a week ago, based on the weekly price...

211

Diesel prices increase  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices increase The U.S. average retail price for on-highway diesel fuel rose to 3.90 a gallon on Monday. That's up 3 cents from a week ago, based on the weekly price...

212

Diesel prices decrease  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices decrease The U.S. average retail price for on-highway diesel fuel fell to 3.88 a gallon on Monday. That's down a penny from a week ago, based on the weekly price...

213

Diesel prices decrease  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices decrease The U.S. average retail price for on-highway diesel fuel fell to 3.82 a gallon on Monday. That's down 2.1 cents from a week ago, based on the weekly price...

214

Diesel prices decrease  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices decrease The U.S. average retail price for on-highway diesel fuel fell to 3.87 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price...

215

Diesel prices decrease  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices decrease The U.S. average retail price for on-highway diesel fuel fell to 3.85 a gallon on Monday. That's down 2 cents from a week ago, based on the weekly price...

216

Investigation of operating range in a methanol fumigated diesel engine  

Science Journals Connector (OSTI)

Abstract An experimental study was conducted to investigate the operating range and combustion characteristics in a methanol fumigated diesel engine. The test engine was a six-cylinder, turbocharged direct injection engine with methanol injected into the intake manifold of each cylinder. The experimental results showed that the viable diesel methanol dual fuel (DMDF) operating range in terms of load and methanol substitution percent (MSP) was achieved over a load range from 6% to 100%. The operating range was restricted by four bounds: partial burning, misfire, roar combustion and knock. The lower bound of the operating range was the partial burn bound, which occurred under very low load conditions with high MSP. As the load increased to medium load, MSP reached its maximum value of about 76%, and the onset of misfire provided the right bound for normal operation. At medium to high load, maximum MSP began to decrease. DMDF combustion with excessive MSP was extremely loud with high pressure rise rate, which defined the roar combustion bound. As it increased to nearly full load, measured pressure traces in-cylinder showed strong acoustic oscillations. The appearance of knock provided the upper bound of the operating range. In general, as the load increased, the characters of the combustion changed from partial burn to misfire to roar combustion and to knocking. The range between these four bounds and the neat diesel combustion bound constituted the viable operating range. Over the viable operating range, DMDF combustion worsened the brake thermal efficiency (BTE) at light load while boosted it at medium and high load.

Quangang Wang; Lijiang Wei; Wang Pan; Chunde Yao

2015-01-01T23:59:59.000Z

217

Performance and emission evaluation of biodiesel fueled diesel engine abetted with exhaust gas recirculation and Ni coated catalytic converter  

Science Journals Connector (OSTI)

This article summarizes the results of a laboratory exertion to evaluate the performance and emission parameters of a single cylinder water cooled direct injection diesel engine with and without the aid of exhaust gas recirculation (EGR) as well as with and without the assistance of nickel coated catalytic converter. Neat diesel ethyl esters of waste frying oil (B100) and its diesel blends (B20 and B40) were used as test fuels to assess the various engine operating parameters. Conjointly in this work the effects of emission characteristics by incorporating nickel coated catalytic converter along with 0% 15% and 20% of HOT EGR technique are elaborately discussed. Experimental results proved that the diesel engine operated up to B40 blends assisted by catalytic converter and 15% EGR level showed an adequate reduction in oxides of nitrogen in the exhaust pipe. Also EGR level up to 15% proved reasonable brake thermal efficiency and specific fuel consumption when the test engine operated up to B40 biodiesel-diesel blends.

D. Subramaniam; A. Murugesan; A. Avinash

2013-01-01T23:59:59.000Z

218

Utilization of alternative fuels in diesel engines  

SciTech Connect (OSTI)

The important findings for a 41-month research grant entitled The Utilization of Alternate Fuels in Diesel Engines are summarized. The procedure followed was to collect performance and emission data for various candidate alternate fuels and compare these data to that for a certified petroleum-based number two Diesel fuel oil. The method of test-fuel introduction was either via fumigation or to use the engine stock injection system. Results for methanol, ethanol, four vegetable oils, two shale-derived oils, and two coal-derived oils are reported. Based upon this study, alcohol fumigation does not appear to be a practical method for utilizing low combustion quality fuels in a Diesel engine. The reasons being, the need for a complex fuel management system and a narrow operating range bounded by wet misfire on the low load end and by severe knock at medium to high loads. Also, it was misfire on the low load end and by severe knock at medium to high loads. Also, it was found that alcohol fumigation enhances the bioactivity of the emitted exhaust particles. Finally, this study showed that while it is possible to inject many synthetic fuels using the engine stock injection system, wholly acceptable performance is only obtained from a fuel whose specifications closely approach those of a finished petroleum-based Diesel oil.

Lestz, S.S.

1984-05-01T23:59:59.000Z

219

Rating the dieselness of vehicle noise using different psychoacoustic methods  

Science Journals Connector (OSTI)

Modern diesel engines meet the demand for high power-engines while strict emission regulations have to be fulfilled. Therefore diesel engines entered vehicle segments where the expectations on the sound quality are exceptionally high. Sound quality and fuel efficiency are often conflicting goals during the development of a diesel engine. The typical sound character of diesel engines the so called Dieselness is an indicator for the overall sound quality of the vehicle noise. Hence it is desirable to rate the Dieselness of engine sounds. Sounds emitted by gasoline- and diesel-powered vehicles in idle condition were rated in psychoacoustic experiments using different methods. First the method of line length was used as direct scaling procedure to get ratio ratings of the relative Dieselness of the vehicle noises. Second a direct ranking of the noises has been done with the Random Access method where subjects had to rank the sounds according to their Dieselness. Third in a paired-comparison test the participants had to judge which of two sounds had more Dieselness resulting in an indirect scaling. These methods are compared regarding the time the experiments took and the resulting ranking respectively scaling. In addition a semantic differential test with general adjective pairs was conducted.

2013-01-01T23:59:59.000Z

220

Experimental Determination of the Efficiency and Emissions of a Residential Microcogeneration System Based on a Stirling Engine and Fueled by Diesel and Ethanol  

Science Journals Connector (OSTI)

Some of the diesel fuel properties were obtained from fuel certification tests conducted by the Alberta Research Council and established by the American Society for Testing and Materials, and the remainder are reported general properties. ... Clucas, D. M.Development of a Stirling engine battery charger based on a low cost wobble mechanism, Ph.D. Thesis, Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand, 1993. ... investigation is conducted to evaluate the effects of using blends of ethanol with conventional diesel fuel, with 5% and 10% (by vol.) ethanol, on the performance and exhaust emissions of a fully instrumented, six-cylinder, turbocharged and after-cooled, heavy duty, direct injection (DI), Mercedes-Benz engine, installed at the authors' lab., which is used to power the mini-bus diesel engines of the Athens Urban Transport Organization sub-fleet with a view to using bio-ethanol produced from Greek feedstock. ...

Nicolas Farra; Tommy Tzanetakis; Murray J. Thomson

2012-01-27T23:59:59.000Z

Note: This page contains sample records for the topic "direct injection diesel" 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

Combined Numerical-experimental Study of Dual Fuel Diesel Engine  

Science Journals Connector (OSTI)

Abstract In the present paper the authors discuss the effect of different fuel ratios on the performance and emission levels of a common rail diesel engine supplied with natural gas and diesel oil. Dual fuel operation is characterized by a diesel pilot injection to start combustion in an intake port premixed NG/air mixture. The combined numerical experimental study of the dual fuel diesel engine that is carried out in this paper aims at the evaluation of the CFD potential to predict the main features of this particular engine operation. The experimental investigations represent a tool for validating such a potential and for highlighting, at the same time, the major problems that arise from the actual engine operation with different NG / diesel oil fuel ratios.

Carmelina Abagnale; Maria Cristina Cameretti; Luigi De Simio; Michele Gambino; Sabatino Iannaccone; Raffaele Tuccillo

2014-01-01T23:59:59.000Z

222

DRIVE CYCLE EFFICIENCY AND EMISSIONS ESTIMATES FOR REACTIVITY CONTROLLED COMPRESSION IGNITION IN A MULTI-CYLINDER LIGHT-DUTY DIESEL ENGINE  

SciTech Connect (OSTI)

In-cylinder blending of gasoline and diesel to achieve Reactivity Controlled Compression Ignition (RCCI) has been shown to reduce NOx and PM emissions while maintaining or improving brake thermal efficiency as compared to conventional diesel combustion (CDC). The RCCI concept has an advantage over many advanced combustion strategies in that by varying both the percent of premixed gasoline and EGR rate, stable combustion can be extended over more of the light-duty drive cycle load range. Changing the percent premixed gasoline changes the fuel reactivity stratification in the cylinder providing further control of combustion phasing and pressure rise rate than the use of EGR alone. This paper examines the combustion and emissions performance of light-duty diesel engine using direct injected diesel fuel and port injected gasoline to carry out RCCI for steady-state engine conditions which are consistent with a light-duty drive cycle. A GM 1.9L four-cylinder engine with the stock compression ratio of 17.5:1, common rail diesel injection system, high-pressure EGR system and variable geometry turbocharger was modified to allow for port fuel injection with gasoline. Engine-out emissions, engine performance and combustion behavior for RCCI operation is compared against both CDC and a premixed charge compression ignition (PCCI) strategy which relies on high levels of EGR dilution. The effect of percent of premixed gasoline, EGR rate, boost level, intake mixture temperature, combustion phasing and pressure rise rate is investigated for RCCI combustion for the light-duty modal points. Engine-out emissions of NOx and PM were found to be considerably lower for RCCI operation as compared to CDC and PCCI, while HC and CO emissions were higher. Brake thermal efficiency was similar or higher for many of the modal conditions for RCCI operation. The emissions results are used to estimate hot-start FTP-75 emissions levels with RCCI and are compared against CDC and PCCI modes.

Curran, Scott [ORNL; Briggs, Thomas E [ORNL; Cho, Kukwon [ORNL; Wagner, Robert M [ORNL

2011-01-01T23:59:59.000Z

223

Low emissions diesel fuel  

DOE Patents [OSTI]

A method and matter of composition for controlling NO.sub.x emissions from existing diesel engines. The method is achieved by adding a small amount of material to the diesel fuel to decrease the amount of NO.sub.x produced during combustion. Specifically, small amounts, less than about 1%, of urea or a triazine compound (methylol melamines) are added to diesel fuel. Because urea and triazine compounds are generally insoluble in diesel fuel, microemulsion technology is used to suspend or dissolve the urea or triazine compound in the diesel fuel. A typical fuel formulation includes 5% t-butyl alcohol, 4.5% water, 0.5% urea or triazine compound, 9% oleic acid, and 1% ethanolamine. The subject invention provides improved emissions in heavy diesel engines without the need for major modifications.

Compere, Alicia L. (Knoxville, TN); Griffith, William L. (Oak Ridge, TN); Dorsey, George F. (Farragut, TN); West, Brian H. (Kingston, TN)

1998-01-01T23:59:59.000Z

224

Reducing Diesel Engine Emissions  

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

225

Engines - Fuel Injection and Spray Research - Gasoline Sprays  

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

Gasoline Sprays Gasoline Sprays Animated image of fuel emerging from a gasoline injector Animated image of fuel emerging from a gasoline injector (simulated environment). Some newer automobiles in the U.S. use gasoline direct injection (GDI) engines. These advanced gasoline engines inject the fuel directly into the engine cylinder rather than into the intake port. These engines can achieve higher fuel efficiency, but they depend on a precise fuel/air mixture at the spark plug to initiate ignition. This leads to more stringent requirements on spray quality and reproducibility. GDI also enables new combustion strategies for gasoline engines such as lean burn engines that use less fuel and air. Lean burn engines may achieve efficiencies near those of diesels while producing low emissions. This

226

Marine Diesel Engines  

Science Journals Connector (OSTI)

Marine diesel engines need reserve power to compensate for ... and decreased efficiency of the engine caused by wear and contamination. Minimum efficiency reserves must be...

Michael Palocz-Andresen

2013-01-01T23:59:59.000Z

227

The comparative analysis of diesel engine combustion and emission parameters fuelled with palm oil methyl esters and its diesel blends  

Science Journals Connector (OSTI)

In this work, the combustion and emission characteristics of a direct injection compression ignition engine fuelled with diesel-Palm Oil Methyl Ester (POME) blends are investigated. This study shows that the ignition delay decreases with increase in the POME addition. The maximum rate of pressure rise and maximum rate of heat release decreases with increase in POME addition at all loads. As the percentage of POME in the blend increases, the crank angle at which the maximum rate of heat release takes place advances. The brake thermal efficiency decreases with increase in POME addition. The unburned hydrocarbon, carbon monoxide and soot intensity decreases, while nitrogen oxides (NOx) increase with increase in POME addition. [Received: April 4, 2008; Accepted: November 24, 2008

G. Lakshmi Narayana Rao; S. Saravanan; P. Selva Ilavarasi

2009-01-01T23:59:59.000Z

228

A New Design Concept for 2-Stroke Aircraft Diesel Engines  

Science Journals Connector (OSTI)

Abstract High power density, low weight, compact dimensions, high efficiency as well as reliability are the key factors in designing and dimensioning piston engines for General Aviation and Unmanned Aerial Vehicle (UAV) power plants. Despite of new available technologies, conventional solutions are still struggling to fulfill simultaneously all those requirements. The paper explores the application of a new design of 2-Stroke externally scavenged engines to aircraft. The new concept basically consists in the use of a patented rotary valve for controlling the flow through a set of inlet ports, enabling supercharging and the achievement of extremely high power densities compared to conventional solutions. The scavenging is realized by using an external pump, made up of a further cylinder, whose piston is connected to the same crankshaft. The piston pump allows the crankcase to be used as a conventional oil sump, and greatly improves the crankshaft balance. No poppet valves or camshafts need to be installed, since the flow is driven by piston-controlled ports and by two sets of reed valves. The engine can adopt two types of combustion system: Gasoline Direct Injection (GDI) for SI operations, and Direct Injection Common Rail for Diesel cycle. The paper is focused on the last version, since it can run on standard aircraft fuel. The Diesel engine has three cylinders and three piston pumps, for a total displacement of 1.5 liter The engine is turbocharged and inter-cooled, in order to reach a power target, at sea level, of 150 kW@4000rpm. Another fundamental target is the minimum power of 100kW, at the altitude of 20,000 feet.The paper reviews the design of the engine and presents the numerical prediction of the key performance parameters.

Giuseppe Cantore; Enrico Mattarelli; Carlo Alberto Rinaldini

2014-01-01T23:59:59.000Z

229

Gasoline and Diesel Fuel Update  

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

Diesel Fuel Pump Components History WHAT WE PAY FOR IN A GALLON OF DIESEL FUEL Mon-yr Retail Price (Dollars per gallon) Refining (percentage) Distribution & Marketing (percentage)...

230

Performance and Emission Characteristics of Diesel Engines Fueled with Diesel?Dimethoxymethane (DMM) Blends  

Science Journals Connector (OSTI)

Although application of high-pressure injection and common rail system can reduce both NOx and PM emissions, the expense is also very high and unaffordable for many engine producers and consumers, especially for diesel engines widely applied for agricultural machinery, most of which are single-cylinder and of low price. ... Fleisch et al.,(2) Kapus and Ofner,(3) and Sorenson and Mikkelsen(4) have studied DME in a modified diesel engine, and their results showed that the engine could meet ultra-low emission levels without a fundamental change in the combustion systems. ... Heywood, J. B. Internal Combustion Engine Fundamentals; McGraw-Hill: New York, 1988. ...

Ruijun Zhu; Xibin Wang; Haiyan Miao; Zuohua Huang; Jing Gao; Deming Jiang

2008-11-14T23:59:59.000Z

231

Low Emissions Aftertreatment and Diesel Emissions Reduction  

SciTech Connect (OSTI)

Detroit Diesel Corporation (DDC) has successfully completed a five-year Low Emissions Aftertreatment and Diesel Emissions Reduction (LEADER) program under a DOE project entitled: ''Research and Development for Compression-Ignition Direct-Injection Engines (CIDI) and Aftertreatment Sub-Systems''. The objectives of the LEADER Program were to: Demonstrate technologies that will achieve future federal Tier 2 emissions targets; and Demonstrate production-viable technical targets for engine out emissions, efficiency, power density, noise, durability, production cost, aftertreatment volume and weight. These objectives were successfully met during the course of the LEADER program The most noteworthy achievements in this program are listed below: (1) Demonstrated Tier 2 Bin 3 emissions target over the FTP75 cycle on a PNGV-mule Neon passenger car, utilizing a CSF + SCR system These aggressive emissions were obtained with no ammonia (NH{sub 3}) slip and a combined fuel economy of 63 miles per gallon, integrating FTP75 and highway fuel economy transient cycle test results. Demonstrated feasibility to achieve Tier 2 Bin 8 emissions levels without active NOx aftertreatment. (2) Demonstrated Tier 2 Bin 3 emissions target over the FTP75 cycle on a light-duty truck utilizing a CSF + SCR system, synergizing efforts with the DOE-DDC DELTA program. This aggressive reduction in tailpipe out emissions was achieved with no ammonia slip and a 41% fuel economy improvement, compared to the equivalent gasoline engine-equipped vehicle. (3) Demonstrated Tier 2 near-Bin 9 emissions compliance on a light-duty truck, without active NOx aftertreatment devices, in synergy with the DOE-DDC DELTA program. (4) Developed and applied advanced combustion technologies such as ''CLEAN Combustion{copyright}'', which yields simultaneous reduction in engine out NOx and PM emissions while also improving engine and aftertreatment integration by providing favorable exhaust species and temperature characteristics. These favorable emissions characteristics were obtained while maintaining performance and fuel economy. These aggressive emissions and performance results were achieved by applying a robust systems technology development methodology. This systems approach benefits substantially from an integrated experimental and analytical approach to technology development, which is one of DDCs core competencies Also, DDC is uniquely positioned to undertake such a systems technology development approach, given its vertically integrated commercial structure within the DaimlerChrysler organization. State-of-the-art analytical tools were developed targeting specific LEADER program objectives and were applied to guide system enhancements and to provide testing directions, resulting in a shortened and efficient development cycle. Application examples include ammonia/NO{sub x} distribution improvement and urea injection controls development, and were key contributors to significantly reduce engine out as well as tailpipe out emissions. Successful cooperation between DDC and Engelhard Corporation, the major subcontractor for the LEADER program and provider of state-of-the-art technologies on various catalysts, was another contributing factor to ensure that both passenger car and LD truck applications achieved Tier 2 Bin 3 emissions levels. Significant technical challenges, which highlight barriers of commercialization of diesel technology for passenger cars and LD truck applications, are presented at the end of this report.

None

2005-05-27T23:59:59.000Z

232

Experimental investigation of regulated and unregulated emissions from a diesel engine fueled with ultralow-sulfur diesel fuel blended with ethanol and dodecanol  

Science Journals Connector (OSTI)

Experiments were conducted on a four-cylinder direct-injection diesel engine using ultralow-sulfur diesel as the main fuel, ethanol as the oxygenate additive and dodecanol as the solvent, to investigate the regulated and unregulated emissions of the engine under five engine loads at an engine speed of 1800revmin?1. Blended fuels containing 6.1%, 12.2%, 18.2% and 24.2% by volume of ethanol, corresponding to 2%, 4%, 6% and 8% by mass of oxygen in the blended fuel, were used. The results indicate that with an increase in ethanol in the fuel, the brake specific fuel consumption becomes higher while there is little change in the brake thermal efficiency. Regarding the regulated emissions, HC and CO increase significantly at low engine load but might decrease at high engine load, \\{NOx\\} emission slightly decreases at low engine load but slightly increases at high engine load, while particulate mass decreases significantly at high engine load. For the unregulated gaseous emissions, unburned ethanol and acetaldehyde increase but formaldehyde, ethene, ethyne, 1,3-butadiene and BTX (benzene, toluene and xylene) in general decrease, especially at high engine load. A diesel oxidation catalyst (DOC) is found to reduce significantly most of the pollutants, including the air toxics.

C.S. Cheung; Yage Di; Zuohua Huang

2008-01-01T23:59:59.000Z

233

Study of mixture formation and early flame development in a research GDI (gasoline direct injection) engine through numerical simulation and UV-digital imaging  

Science Journals Connector (OSTI)

Abstract The analysis of the mixture formation and early combustion processes in a slightly lean burn gasoline direct injection (GDI) engine is performed by using experimental and numerical techniques. UVvisible natural emission digital imaging is applied in the optically accessible combustion chamber of a research engine. This is equipped with the four-valve head and the same injection system of a commercial turbocharged engine. Optical accessibility is obtained through a quartz window placed on the piston head. Numerical simulations are performed by means of a 3D model developed within the AVL FireTM environment, which exploits an in-house developed sub-model for simulating the spray dynamics. Tests are carried out using commercial gasoline. The cyclic variability of the engine is first analysed in order to properly define a reference average pressure cycle to be used for the validation of the numerical model. This last is then proved as being highly predictive as the start of injection is moved in the working cycle. The main effects of the injection and ignition timing on the characteristic flame development angles, namely on the flame initiation and propagation, are analysed. Flame initiation is visualised both numerically and experimentally.

M. Costa; L. Marchitto; S.S. Merola; U. Sorge

2014-01-01T23:59:59.000Z

234

Diesel engine reference book  

SciTech Connect (OSTI)

This book is a reference on the design, operation, and maintenance of all types of diesel engines, ranging from the smallest automotive and ancillary engines to the largest marine diesels. Nearly 900 line drawings, graphs and photos illustrate the book. Major Sections: Theory; Engine Design Practice; Lubrication; Environmental Pollution; Crankcase Explosions; Engine Types; Engine Testing; Maintenance; Index.

Lilly, I.R.C.

1984-01-01T23:59:59.000Z

235

Experimental Investigation of Fuel-Reactivity Controlled Compression Ignition (RCCI) Combustion Mode in a Multi-Cylinder, Light-Duty Diesel Engine  

SciTech Connect (OSTI)

An experimental study was performed to provide the combustion and emission characteristics resulting from fuel-reactivity controlled compression ignition (RCCI) combustion mode utilizing dual-fuel approach in a light-duty, multi-cylinder diesel engine. In-cylinder fuel blending using port fuel injection of gasoline before intake valve opening (IVO) and early-cycle, direct injection of diesel fuel was used as the charge preparation and fuel blending strategy. In order to achieve the desired auto-ignition quality through the stratification of the fuel-air equivalence ratio ( ), blends of commercially available gasoline and diesel fuel were used. Engine experiments were performed at an engine speed of 2300rpm and an engine load of 4.3bar brake mean effective pressure (BMEP). It was found that significant reduction in both nitrogen oxide (NOx) and particulate matter (PM) was realized successfully through the RCCI combustion mode even without applying exhaust gas recirculation (EGR). However, high carbon monoxide (CO) and hydrocarbon (HC) emissions were observed. The low combustion gas temperature during the expansion and exhaust processes seemed to be the dominant source of high CO emissions in the RCCI combustion mode. The high HC emissions during the RCCI combustion mode could be due to the increased combustion quenching layer thickness as well as the -stratification at the periphery of the combustion chamber. The slightly higher brake thermal efficiency (BTE) of the RCCI combustion mode was observed than the other combustion modes, such as the conventional diesel combustion (CDC) mode, and single-fuel, premixed charge compression ignition (PCCI) combustion mode. The parametric study of the RCCI combustion mode revealed that the combustion phasing and/or the peak cylinder pressure rise rate of the RCCI combustion mode could be controlled by several physical parameters premixed ratio (rp), intake swirl intensity, and start of injection (SOI) timing of directly injected fuel unlike other low temperature combustion (LTC) strategies.

Cho, Kukwon [ORNL] [ORNL; Curran, Scott [ORNL] [ORNL; Prikhodko, Vitaly Y [ORNL] [ORNL; Sluder, Scott [ORNL] [ORNL; Parks, II, James E [ORNL; Wagner, Robert M [ORNL] [ORNL

2011-01-01T23:59:59.000Z

236

Diesel fuel oils, 1980  

SciTech Connect (OSTI)

Properties of diesel fuels produced during 1980 were submitted for study and compilation under a cooperative agreement between the Department of Energy, Bartlesville Energy Technology Center, Bartlesville, Oklahoma and the American Petroleum Institute. Tests of 192 samples of diesel fuel oils from 95 refineries throughout the country were made by 28 petroleum groups according to type of diesel fuel. Each group of analyses is subdivided into five tabulations according to five general regions of the country where the fuels are marketed. The regions, containing a total of 16 districts, are shown on a map in the report. Data from 13 laboratory tests on each individual diesel fuel sample are listed and arranged by geographic marketing districts in decreasing order of sales volumes. Charts are included showing trends of averages of certain properties for the four types of diesel fuels for the years 1960-1980. Summaries of the results of the 1980 survey, compared with similar data for 1979, are shown.

Shelton, E.M.

1980-12-01T23:59:59.000Z

237

Comparative Study on Two Types of Electric Control Pressure Amplifier Applied to Augment Common-Rail Injection System  

Science Journals Connector (OSTI)

Augment Common-Rail Injection System (ACRS) could realize multilevel injection pressure and adjustable injection rate (square ramp shoot). So it could match operate state of diesel engine well, and has vast potential for reducing the emission of high-power ... Keywords: diesel engine, pressure ratio, fuel consumption, pressure oscillation, NECPA

Hailong Chen; Guangyao Ouyang; Jingqiu Zhang

2010-11-01T23:59:59.000Z

238

Diesel and Biodiesel Fuel Spray Simulations  

Science Journals Connector (OSTI)

Diesel and Biodiesel Fuel Spray Simulations ... That deviates from general assumptions and is probably the consequence of the large nozzle diameter. ... Numerous trials gave the best results for the pretuned C1, C2, and C3 values using following parameters and appropriate coefficients in the following expressions: where ?f is fuel density [kg/m3], ?f is fuel viscosity [mPa s], ?f is fuel surface tension [N/mm], tinj stands for injection time [ms], pave is average injection pressure [MPa], sq = pave/pmax (squarness), Qc represents fueling [mm3/cycle], and n is pump speed [1/min]. ...

Primoz Pogorevc; Breda Kegl; Leopold Skerget

2008-01-12T23:59:59.000Z

239

Direct Probing of Charge Injection and Polarization-Controlled Ionic Mobility on Ferroelectric LiNbO3 Surfaces  

SciTech Connect (OSTI)

Mapping surface potential with time-resolved Kelvin Probe Force Microscopy (tr-KPFM) in LiNbO3 periodically-poled single crystal revealed activation of the surface ionic subsystem. Electric fields higher than certain threshold value but lower than the switching field induce injection of charge from the biased electrode, formation of an active region in its vicinity and uneven distribution of screening charge on the opposite ferroelectric domains. Tr-KPFM technique allows investigating these phenomena in details.

Strelcov, Evgheni [ORNL] [ORNL; Ievlev, Dr. Anton [Ural State University, Russia] [Ural State University, Russia; Jesse, Stephen [ORNL] [ORNL; Kravchenko, Ivan I [ORNL] [ORNL; Shur, V.Y. [Institute of Physics and Applied Mathematics, Ural State University] [Institute of Physics and Applied Mathematics, Ural State University; Kalinin, Sergei V [ORNL] [ORNL

2014-01-01T23:59:59.000Z

240

Initial Results of the DeNOx SCR System by Urea Injection in...  

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

Initial Results of the DeNOx SCR System by Urea Injection in the Euro 5 Bus Initial Results of the DeNOx SCR System by Urea Injection in the Euro 5 Bus 2005 Diesel Engine Emissions...

Note: This page contains sample records for the topic "direct injection diesel" from the National Library of EnergyBeta (NLEBeta).
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241

Engine combustion, performance and emission characteristics of gas to liquid (GTL) fuels and its blends with diesel and bio-diesel  

Science Journals Connector (OSTI)

Abstract Crude oil price hikes, energy security concerns and environmental drivers have turned the focus to alternative fuels. Gas to liquid (GTL) diesel is regarded as a promising alternative diesel fuel, considering the adeptness to use directly as a diesel fuel or in blends with petroleum-derived diesel or bio-diesel. GTL fuel derived from FischerTropsch synthesis is of distinctly different characteristics than fossil diesel fuel due to its paraffinic nature, virtually zero sulfur, low aromatic contents and very high cetane number. GTL fuel is referred to as a clean fuel for its inherent ability to reduce engine exhaust emission even with blends of diesel and bio-diesel. This paper illustrates feasibility of GTL fuel in context of comparative fuel properties with conventional diesel and bio-diesels. This review also describes the technical attributes of GTL and its blends with diesel and bio-diesel focusing their impact on engine performance and emission characteristics on the basis of the previous research works. It can introduce an efficacious guideline to devise several blends of alternative fuels, further the development of engine performance and constrain exhaust emission to cope with the relentless efforts to manufacture efficient and environment friendly powertrains.

H. Sajjad; H.H. Masjuki; M. Varman; M.A. Kalam; M.I. Arbab; S. Imtenan; S.M. Ashrafur Rahman

2014-01-01T23:59:59.000Z

242

IMPACT OF OXYGENATED FUEL ON DIESEL ENGINE PERFORMANCE AND EMISSIONS  

SciTech Connect (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

243

Pleated Ceramic Fiber Diesel Particulate Filter | Department...  

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

Pleated Ceramic Fiber Diesel Particulate Filter Pleated Ceramic Fiber Diesel Particulate Filter 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

244

Diesel Technology - Challenges & Opportunities for North America  

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

diesel entries Passenger car and Class 1 truck diesel sales fall off quickly as diesel fuel price advantage disappears, overall fuel costs drop, and fuel rationing ceases ...

245

(1) Elements of Diesel Engineering: (2) Diesel and other Internal-Combustion Engines: (3) Diesel Engines  

Science Journals Connector (OSTI)

... publications arising from its importance from scientific, technical and commercial points of view, the Diesel ...

1937-01-30T23:59:59.000Z

246

Performance and emissions of a dual fuel operated diesel engine  

Science Journals Connector (OSTI)

Vegetable oil and its esters (biodiesel) are the renewable alternative fuels that can be used as a substitute for diesel in the diesel engines. The vegetable oil fuelled diesel engine results in lower efficiency and higher smoke emission. Hence in this work, an attempt has been made to use inedible and under utilised mahua oil (MO) as a substitute for diesel by fumigating liquefied petroleum gas (LPG) along with the air. A single cylinder diesel engine was modified to work in dual fuel mode by suitable retrofitting. The MO was injected into the cylinder using a fuel pump and LPG was fumigated along with the air. In MO + LPG dual fuel mode, 9% increase in brake thermal efficiency and 35% reduction in smoke emission of the engine were observed as compared to the sole fuel mode with MO. Also, the engine performance characteristics in MO + LPG dual fuel mode are close to sole fuel mode with diesel. From this work, it is concluded that LPG can be fumigated along with the air to increase the performance of MO fuelled agricultural diesel engine.

N. Kapilan; R.P. Reddy

2012-01-01T23:59:59.000Z

247

Comparison of PM emissions from a gasoline direct injected (GDI) vehicle and a port fuel injected (PFI) vehicle measured by electrical low pressure impactor (ELPI) with two fuels: Gasoline and M15 methanol gasoline  

Science Journals Connector (OSTI)

Two Euro 4 gasoline passenger vehicles (one gasoline direct injected vehicle and one port fuel injected vehicle) were tested over the cold start New European Driving Cycle (NEDC). Each vehicle was respectively fueled with gasoline and M15 methanol gasoline. Particle number concentrations were measured by the electrical low pressure impactor (ELPI). Particle masses were measured by gravimetric method and estimated from the number distributions using two density distributions (one is constant with the particle size and one is power law related with the size). The first 7 stages of ELPI were used for estimation. The results show that for each vehicle, PM masses measured by gravimetric method, the total PM numbers measured by ELPI and estimated PM masses for M15 are lower than those for gasoline. For each kind of fuel, PM masses by two methods and total PM numbers from the GDI vehicle are higher than those from the PFI one. PM number distribution curves of the four vehicle/fuel combinations are similar. All decline gradually and the maximum number of each curve occurs in the first stage. More than 99.9% numbers locate in the first 8 stages of which diameters are less than 1?m. PM number emissions correlate well with the acceleration of the two vehicles. The estimated particle masses were much lower than the gravimetric measurements.

Bin Liang; Yunshan Ge; Jianwei Tan; Xiukun Han; Liping Gao; Lijun Hao; Wentao Ye; Peipei Dai

2013-01-01T23:59:59.000Z

248

Advanced diesel combustion  

Science Journals Connector (OSTI)

Future emission norms will further reduce the vehicle emissions of diesel engines. To meet the goal of achieving these stringent limits while maintaining attractive attributes of marketability, the combustion ...

Dirk Adolph; Hartwig Busch; Stefan Pischinger; Andreas Kolbeck

2008-01-01T23:59:59.000Z

249

diesel.vp  

U.S. Energy Information Administration (EIA) Indexed Site

differences, whereas stationary series can be estimated in level form. The unit root test could not reject the hypothesis that the retail and spot diesel fuel price series have...

250

Saving diesel fuel in the oil field  

SciTech Connect (OSTI)

Describes how diesel electric SCR (silicon controlled rectifier) drilling rigs are helping drillers save fuel expense in the oil fields, along with other energy conservation methods. Compares SCR to conventional drilling rigs. Points out that on conventional rigs, diesel engines drive rig components directly, while on the SCR electric rigs, diesel engines turn a.c. electric generators which supply energy to d.c. electric motors for rig component power. Components of the SCR rigs include drawworks, mud pumps, rotary table, compressors, shakers, blenders and the camp load. Recommends economic principles such as supplying generators large enough to handle the low p.f. (power factor) as well as peak power requirements; and keeping the work load on diesel engines as high as possible for fuel economy. Presents tables of fuel consumed per 100 kW at various load factors; effect of power factor on engine hp required; electric drilling rig power modules; and engine and generator selection guide. Emphasizes consideration of the competitive difference in diesel engine economy.

Elder, B.

1982-11-01T23:59:59.000Z

251

Argonne TTRDC - Engines - Emissions Control - Advanced Diesel Particulate  

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

252

Making premium diesel fuel  

SciTech Connect (OSTI)

For refiners, extra processing and blending is a practical, though not always easy, option for improving diesel fuel properties; however, it entails compromises. For example, ignition quality can be improved by including more paraffins, but this negatively impacts the required low-temperature operability properties. Another example is adding aromatics to increase the diesel`s Btu value, but aromatics burn poorly and tend to cause smoking. Due to these and other types of diametrical trade-offs, the scope of distillate processing and fuels blending at the refinery is often very limited. Therefore, fuel additives are rapidly becoming the only alternative for obtaining the superior quality necessary in a premium diesel fuel. If stabilizers, dispersants and other fuel additive components are used in the additive package, the product can be marketed as a premium diesel fuel additive. Engines using this additive-treated fuel will consistently have less emissions, produce optimum power from the fuel energy conversion process and perform to design specifications. And the user will truly have a premium diesel fuel. The paper discusses detergent additives, cetane or ignition improvers, fuel stabilizers, cold weather additives, and lubricity additives.

Pipenger, G. [Amalgamated Inc., Fort Wayne, IN (United States)

1997-02-01T23:59:59.000Z

253

Electrically-Assisted Diesel Particulate Filter Regeneration...  

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

More Documents & Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Electrically-Assisted Diesel Particulate Filter Regeneration...

254

Characterization and analysis of diesel exhaust odor  

Science Journals Connector (OSTI)

Characterization and analysis of diesel exhaust odor ... Carbonyl and Nitrogen Dioxide Emissions From Gasoline- and Diesel-Powered Motor Vehicles ...

Patricia A. Partridge; Francis J. Shala; Nicholas P. Cernansky; Irwin H. Suffet

1987-04-01T23:59:59.000Z

255

Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure...  

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

Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure in Genotoxicity Studies to Support Engineering Development of Emission Controls Preserving Diesel Exhaust...

256

Usage of Fuel Mixtures Containing Ethanol and Rapeseed Oil Methyl Esters in a Diesel Engine  

Science Journals Connector (OSTI)

However, its use in the diesel engine cycle is hampered by the poor motor-fueling characteristics of lower alcohols and, primarily, the limited solubility of ethanol in fossil diesel fuel and its low self-ignition characteristics. ... Coefficient ? = Gair/(GfL0) estimates air supply into a diesel engine cylinder (indicator process), taking into account the differences of stoichiometric ratio L0 of the tested fuels, caused by the increase of the E portion in the RME?E mixture (Gair is air consumption, and Gf is fuel consumption). ... Future research will concentrate on the analysis of fuel injection and heat release rate characteristics in a cylinder, while a diesel engine is running on biodiesel fuels RME?E, and also on the operational parameters of diesel engines when fossil diesel fuel is replaced with three-component fuels D?RME?E. ...

Sergejus Lebedevas; Galina Lebedeva; Violeta Makareviciene; Prutenis Janulis; Egle Sendzikiene

2008-11-12T23:59:59.000Z

257

Maneuverability and smoke emission constraints in marine diesel propulsion  

Science Journals Connector (OSTI)

A multivariable control scheme is designed that reduces smoke generation on an experimental marine diesel engine equipped with a variable geometry turbocharger. The variable geometry turbocharger allows the improvement of the steady-state ship hydrodynamic and propulsion characteristics and requires coordination with the injected mass fuel to achieve a good transient performance.

Anna Stefanopoulou; Roy Smith

2000-01-01T23:59:59.000Z

258

Testing of a coal-fired diesel power plant  

SciTech Connect (OSTI)

The POC coal-fired power plant consists of a Cooper-Bessemer LSC-6 engine (15.5 inch bore, 22 inch stroke) rated at 400 rev/min and 208 psi bmep producing approximately 1.8 MW of power. The power plant is fueled with 'engine grade' coal slurry which has been physically cleaned to an ash level of approximately 1.5 to 2% (dry basis) and has a mean particle size of approximately 12 micron. CWS is injected directly into the combustion chamber through a fuel injector (one per cylinder) which was designed and developed to be compatible with the fuel. Each injector is fitted with a 19 orifice nozzle tip made with sapphire inserts in each orifice. The combustion chambers are fitted with twin diesel pilot injectors which provide a positive ignition source and substantially shorten the ignition delay period of the CWS fuel. Durable coatings (typically tungsten carbide) are used for the piston rings and cylinder liners to reduce wear rates. The emission control system consists of SCR for NO[sub x] control, sodium sorbent injection for SO[sub x] control, and a cyclone plus baghouse for particulate capture. The cyclone is installed upstream of the engine turbocharger which helps protect the turbine blades.

Wilson, R.P.; Balles, E.N.; Benedek, K.R.; Benson, C.E. (Little (Arthur D.), Inc., Cambridge, MA (United States)); Rao, K.; Schaub, F. (Cooper-Bessemer, Mount Vernon, OH (United States)); Kimberley, J. (AMBAC, West Springfield, MA (United States)); Itse, D. (PSI Technology Co., Andover, MA (United States))

1993-01-01T23:59:59.000Z

259

Testing of a coal-fired diesel power plant  

SciTech Connect (OSTI)

The POC coal-fired power plant consists of a Cooper-Bessemer LSC-6 engine (15.5 inch bore, 22 inch stroke) rated at 400 rev/min and 208 psi bmep producing approximately 1.8 MW of power. The power plant is fueled with `engine grade` coal slurry which has been physically cleaned to an ash level of approximately 1.5 to 2% (dry basis) and has a mean particle size of approximately 12 micron. CWS is injected directly into the combustion chamber through a fuel injector (one per cylinder) which was designed and developed to be compatible with the fuel. Each injector is fitted with a 19 orifice nozzle tip made with sapphire inserts in each orifice. The combustion chambers are fitted with twin diesel pilot injectors which provide a positive ignition source and substantially shorten the ignition delay period of the CWS fuel. Durable coatings (typically tungsten carbide) are used for the piston rings and cylinder liners to reduce wear rates. The emission control system consists of SCR for NO{sub x} control, sodium sorbent injection for SO{sub x} control, and a cyclone plus baghouse for particulate capture. The cyclone is installed upstream of the engine turbocharger which helps protect the turbine blades.

Wilson, R.P.; Balles, E.N.; Benedek, K.R.; Benson, C.E. [Little (Arthur D.), Inc., Cambridge, MA (United States); Rao, K.; Schaub, F. [Cooper-Bessemer, Mount Vernon, OH (United States); Kimberley, J. [AMBAC, West Springfield, MA (United States); Itse, D. [PSI Technology Co., Andover, MA (United States)

1993-01-01T23:59:59.000Z

260

Modeling the Effect of Fuel Ethanol Concentration on Cylinder Pressure Evolution in Direct-Injection Flex-Fuel Engines  

E-Print Network [OSTI]

Modeling the Effect of Fuel Ethanol Concentration on Cylinder Pressure Evolution in Direct the fuel vaporization pro- cess for ethanol-gasoline fuel blends and the associated charge cooling effect experimental cylinder pressure for different gasoline-ethanol blends and various speeds and loads on a 2.0 L

Stefanopoulou, Anna

Note: This page contains sample records for the topic "direct injection diesel" 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

The effects of unburned hydrocarbon recirculation on ignition and combustion during diesel engine cold starts  

Science Journals Connector (OSTI)

Abstract The exhaust gases contain large amounts of unburned hydrocarbons during cranking without combustion. The effects of unburned hydrocarbon recirculation on ignition and combustion during diesel engine cold starts were investigated using both experiments and simulations. Experiments were conducted on a single-cylinder DI (direct injection) diesel engine equipped with a common rail injection system. The amount of unburned hydrocarbon recirculation was jointly controlled by an EGR (exhaust gas recirculation) valve and a back pressure valve. The investigation showed that optimal opening of recirculation control valves allowed the first firing cycle to be advanced from 19 to 6 and reduced the duration of heavy smoke emission (opacity>50%) by 77%. However, the enhancement to the in-cylinder LTR (low temperature reaction) decreased gradually as the amount of unburned hydrocarbon recirculation increased. An analysis of the chemical kinetics showed that the reaction intermediates present in unburned hydrocarbons, such as ketohydroperoxides, were the most significant factor in enhancing the LTR during non-firing cycles. At the same time, the substantial heat capacity of unburned hydrocarbons suppressed the LTR for higher recirculation rates.

Yi Cui; Haiyong Peng; Kangyao Deng; Lei Shi

2014-01-01T23:59:59.000Z

262

Study Reveals Fuel Injection Timing Impact on Particle Number Emissions (Fact Sheet)  

SciTech Connect (OSTI)

Start of injection can improve environmental performance of fuel-efficient gasoline direct injection engines.

Not Available

2012-12-01T23:59:59.000Z

263

Numerical study on the combustion and emission characteristics of a methanol/diesel reactivity controlled compression ignition (RCCI) engine  

Science Journals Connector (OSTI)

An improved multi-dimensional model coupled with detailed chemical kinetics mechanism was applied to investigate the combustion and emission characteristics of a methanol/diesel reactivity controlled compression ignition (RCCI) engine. The fuel was supplied separately by directly injecting diesel fuel into cylinder well before top dead center, while premixing methanol through the intake port in the tested methanol/diesel RCCI engine. The effects of mass fraction of premixed methanol, start of injection (SOI) of diesel and initial in-cylinder temperature at intake valve closing (IVC) on engine combustion and emission were investigated in detail. The results show that both methanol mass fraction and SOI have a significant impact on cetane number (CN) distribution, i.e. fuel reactivity distribution, which determines the ignition delay and peak of heat release rate (HRR). Due to larger area with high-temperature region and more homogeneous fuel distribution with increased methanol, and the oxygen atom contained by methanol molecule, all the emissions are reduced with moderate methanol addition. Advanced SOI with high combustion temperature is favorable to hydrocarbon (HC) and soot reduction, yet not to the decrease of nitrogen oxide (NOx) and carbon monoxide (CO) emissions. Both increasing methanol fraction and advancing the SOI are beneficial to improve fuel economy and avoid engine knock. Moreover, it was revealed that the initial temperature must be increased with increased methanol fraction to keep the 50% burn point (CA50) constant, which results in decrease of the equivalent indicated specific fuel consumption (EISFC) and all emissions, except for slight increase in \\{NOx\\} due to the higher burning temperature.

Yaopeng Li; Ming Jia; Yaodong Liu; Maozhao Xie

2013-01-01T23:59:59.000Z

264

An experimental investigation of Perkins A63544 diesel engine performance using D-Series fuel  

Science Journals Connector (OSTI)

Abstract This paper reports the results of an investigation using a newly developed fuel mixture called D-Series fuel on a Perkins A63544 direct injection diesel engine. The biodiesel and bioethanol fuels were added to diesel fuel in a manner that specifications of the formed mixture did not change considerably. The performance of the engine under test was then evaluated without any modification or change in engine components and systems using the D-Series fuel. The obtained data was statistically analyzed using two factors completely randomized design to study the effects of the engine speeds and fuel blend types on the engine power, torque, and specific fuel consumption. The analysis of variance showed that the engine speeds and fuel types had statistically significant effects at 1% probability level (Pengine power, torque and specific fuel consumption. The mean values of engine power were increased in the range of 59.1469.5kW with increasing the engine speed. The engine power did not show significant difference for all the fuel blends except for the D65B25E10, 65% diesel, 25% biodiesel and 10% bioethanol, blend which decreased the engine power. The engine torque was decreased with increasing the engine speed for all the fuel blends in range of 319296Nm. The maximum torque reduction was about 25Nm for neat petro-diesel fuel. The engine torque was decreased significantly (Pengine speed ranged from 1600 to 2000rpm. The engine specific fuel consumption was increased significantly when the engine speed ranged from 1900 to 2000rpm. The engine specific fuel consumption was greater for all the fuel blends when compared to neat diesel fuel. The D93B5E2 fuel blend could be suggested as an appropriate alternative for neat petro-diesel fuel, though the D86B10E4 and D79B15E6 blends could be also suggested for greater ratios of biodiesel and bioethanol application in D-Series fuel application.

Seyed Reza Hassan-beygi; Vahideh Istan; Barat Ghobadian; Mohammad Aboonajmi

2013-01-01T23:59:59.000Z

265

Diesel prices continue to increase  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices continue to increase The U.S. retail price for on-highway diesel fuel rose to its highest average since September at 3.95 a gallon. That's up 4.7 cents from a week...

266

Diesel prices continue to increase  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to 3.91 a gallon on Monday. That's up 7-tenths of a penny from a week ago, based...

267

Diesel prices continue to increase  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to 3.98 a gallon. That's up 2.6 cents from a week ago, based on the weekly price...

268

Diesel fuel oils, 1982  

SciTech Connect (OSTI)

Properties of diesel fuels produced during 1982 were submitted for study and compilation under a cooperative agreement between the Department of Energy (DOE), Bartlesville Energy Technology Center (BETC), Bartlesville, Oklahoma and the American Petroleum Institute (API). Tests of 184 samples of diesel fuel oils from 83 refineries throughout the country were made by 27 petroleum groups according to type of diesel fuel. Each group of analyses is subdivided into five tabulations according to five general regions of the country where the fuels are marketed. The regions, containing a total of 16 districts, are shown on a map in the report. Data from 13 laboratory tests on each individual diesel fuel sample are listed and arranged by geographic marketing districts in decreasing order of sales volumes. Charts are included showing trends of averages of certain properties for the four types of diesel fuels for the years 1960 to 1982. Summaries of the results of the 1982 survey, compared with similar data for 1981, are shown in Tables 1 through 4 of the report. A summary of 1-D and 2-D fuels are presented in Tables 5 and 6 respectively.

Shelton, E.M.

1982-11-01T23:59:59.000Z

269

Diesel fuel oils, 1981  

SciTech Connect (OSTI)

Properties of diesel fuels produced during 1981 were submitted for study and compilation under a cooperative agreement between the Department of Energy (DOE), Bartlesville Energy Technology Center (BETC), Bartlesville, Oklahoma and the American Petroleum Institute (API). Tests of 160 samples of diesel fuel oils from 77 refineries throughout the country were made by 26 petroleum groups according to type of diesel fuel. Each group of analyses is subdivided into five tabulations according to five general regions of the country where the fuels are marketed. The regions, containing a total of 16 districts, are shown on a map in the report. Data from 13 laboratory tests on each individual diesel fuel sample are listed and arranged by geographic marketing districts in decreasing order of sales volumes. Charts are included showing trends of averages of certain properties for the four types of diesel fuels for the years 1960 to 1981. Summaries of the results of the 1981 survey, compared with similar data for 1980, are shown.

Shelton, E.M.

1981-12-01T23:59:59.000Z

270

Soybean Oil as Diesel Fuel  

Science Journals Connector (OSTI)

Soybean Oil as Diesel Fuel ... TESTS are reported from Japan on the use of soybean oil as Diesel fuel in a 12-horsepower engine of 150-mm. ... This trouble was overcome by passing through some of the Diesel cooling water to heat the fuel tank and supply line. ...

C.H.S. TUPHOLME

1940-10-10T23:59:59.000Z

271

Syngas (H2/CO) in a spark-ignition direct-injection engine. Part 1: Combustion, performance and emissions comparison with CNG  

Science Journals Connector (OSTI)

Abstract The combustion, performance, and emissions of syngas (H2/CO) in a four-stroke, direct-injection, spark-ignition engine were experimentally investigated. The engine was operated at various speeds, ranging from 1500 to 2400rev/min, with the throttle being held in the wide-open position. The start of fuel injection was fixed at 180 before the top dead center, and the ignition advance was set at the maximal brake torque. The air/fuel ratio was varied from the technically possible lowest excess air ratio (?) to lean operation limits. The results indicated that a wider air/fuel operating ratio is possible with syngas with a very low coefficient of variation. The syngas produced a higher in-cylinder peak pressure and heat-release rate peak and faster combustion than for CNG. However, CNG produced a higher brake thermal efficiency (BTE) and lower brake specific fuel consumption (BSFC). The BTE and BSFC of the syngas were on par to those of CNG at higher speeds. For the syngas, the total hydrocarbon emission was negligible at all load conditions, and the carbon monoxide emission was negligible at higher loads and increased under lower load conditions. However, the emission of nitrogen oxides was higher at higher loads with syngas.

Ftwi Yohaness Hagos; A. Rashid A. Aziz; Shaharin A. Sulaiman

2014-01-01T23:59:59.000Z

272

The John Deere E diesel Test & Research Project  

SciTech Connect (OSTI)

Three non-road Tier II emissions compliant diesel engines manufactured by John Deere were placed on a durability test plan of 2000 hours each at full load, rated speed (FLRS). The fuel was a blend of 10% fuel ethanol and 90% low sulfur #2 diesel fuel. Seven operational failures involving twenty seven fuel system components occurred prior to completion of the intended test plan. Regulated emissions measured prior to component failure indicated compliance to Tier II certification goals for the observed test experience. The program plan included operating three non-road Tier II diesel engines for 2000 hours each monitoring the regulated emissions at 500 hour intervals for changes/deterioration. The program was stopped prematurely due to number and frequency of injection system failures. The failures and weaknesses observed involved injector seat and valve wear, control solenoid material incompatibility, injector valve deposits and injector high pressure seal cavitation erosion. Future work should target an E diesel fuel standard that emphasizes minimum water content, stability, lubricity, cetane neutrality and oxidation resistance. Standards for fuel ethanol need to require water content no greater than the base diesel fuel standard. Lubricity bench test standards may need new development for E diesel.

Fields, Nathan; Mitchell, William E.

2008-09-23T23:59:59.000Z

273

Smart Materials for Fuel Injection Actuation  

SciTech Connect (OSTI)

The demands of stringent emissions and a robust engine dynamic torque response characteristic require innovative, accurate and repeatable control of the fuel injection event. Recent advances in piezo-material actuators have warranted the pursuit of its application to advanced heavy-duty truck fuel injection systems. This presentation will report on design and testing of an advanced electronic unit injector for the Detroit Diesel Series 60 truck engine.

Hakim, Nabil

2000-08-20T23:59:59.000Z

274

Performance and emissions of a diesel tractor engine fueled with marine diesel and soybean methyl ester  

Science Journals Connector (OSTI)

Biodiesel is an alternative fuel that is cleaner than petrodiesel. Biodiesel can be used directly as fuel for a diesel engine without having to modify the engine system. It has the major advantages of having high biodegradability, excellent lubricity and no sulfur content. This paper presents the results of investigations carried out in studying the fuel properties of soybean methyl ester (SME) and its blend with marine diesel fuel from 5%, 20% and 50% blends by volume and in running a diesel engine with these fuels. The results indicate that the use of biodiesel produces lower smoke opacity (up to 74%), but higher brake specific fuel consumption (BSFC) (up to 12%) compared to marine fuel (MF). The measured carbon monoxide (CO) emissions of B5 and B100 fuels were found to be 3% and 52% lower than that of the MF, respectively.

B. Gokalp; E. Buyukkaya; H.S. Soyhan

2011-01-01T23:59:59.000Z

275

A comparative evaluation of Al 2 O 3 coated low heat rejection diesel engine performance and emission characteristics using fuel as rice bran and pongamia methyl ester  

Science Journals Connector (OSTI)

In this study for the first time a nanoceramic Al 2 O 3 was used as a coatingmaterial in the low heat rejection engine concept. Experiments were conducted on single cylinder four stroke water cooled and direct injection diesel engine. First the engine was tested at different load conditions without coating. Then combustion chamber surfaces (cylinder head cylinder liner valves and piston crown face) were coated with nanoceramic material of Al 2 O 3 using plasma spray method. Comparative evaluation on performance and emission characteristics using fuel as rice bran methyl ester pongamia methyl ester and biodiesel/diesel fuel mixtures was studied in the ceramiccoated and uncoated engines under the same running conditions. An increase in engine power and a decrease in specific fuel consumption as well as significant improvements in exhaust gas emissions (except NOx) and smoke density were observed in the ceramiccoated engines compared with those of the uncoated engine.

M. Mohamed Musthafa; S. P. Sivapirakasam; M. Udayakumar

2010-01-01T23:59:59.000Z

276

Gasoline and Diesel Fuel Update  

Gasoline and Diesel Fuel Update (EIA)

Price Data Collection Procedures Price Data Collection Procedures Every Monday, retail on-highway diesel prices are collected by telephone and fax from a sample of approximately 350 retail diesel outlets, including truck stops and service stations. The data represent the price of ultra low sulfur diesel (ULSD) which contains less than 15 parts-per-million sulfur. The Environmental Protection Agency (EPA) requires that all on-highway diesel sold be ULSD by December 1, 2010 (September 1, 2006 in California). In January 2007, the weekly on-highway diesel price survey began collecting diesel prices for low sulfur diesel (LSD) which contains between 15 and 500 parts-per-million sulfur and ULSD separately. Prior to January 2007, EIA collected the price of on-highway fuel without distinguishing the sulfur

277

Retail Diesel Fuel Oil Prices  

Gasoline and Diesel Fuel Update (EIA)

Along with heating oil prices, the distillate supply squeeze has Along with heating oil prices, the distillate supply squeeze has severely impacted diesel fuel prices, especially in the Northeast. Diesel fuel is bascially the same product as home heating oil. The primary difference is that diesel has a lower sulfur content. When heating oil is in short supply, low sulfur diesel fuel can be diverted to heating oil supply. Thus, diesel fuel prices rise with heating heating oil prices. Retail diesel fuel prices nationally, along with those of most other petroleum prices, increased steadily through most of 1999. But prices in the Northeast jumped dramatically in the third week of January. Diesel fuel prices in New England rose nearly 68 cents per gallon, or 47 percent, between January 17 and February 7. While EIA does not have

278

Environmental cost-effectiveness of bio diesel production in Greece: Current policies and alternative scenarios  

Science Journals Connector (OSTI)

Following European Directive 2003/30/EC, the Greek Government adapted legislation that introduces and regulates the bio diesel market. The implemented quota scheme allocates the country's annual, predetermined, tax exempt production of bio diesel to industries based on their ability to meet several criteria. A number of bio diesel supply chain stakeholders have criticized this policy for being efficiency-robbing and vague. This paper uses 2007 data from energy crop farms and three bio diesel-producing companies in order to assess these criticisms. We study the economic and environmental aspects of the currently adopted policy and compare them to three alternative scenarios. We conclude that such criticisms have a merit and that policy makers need to reconsider their alternative options regarding the promotion of bio diesel in transport. Permission of sales directly to local consumers and promotion of forward integration by farmers are efficiency enhancing and environment-friendly means of promoting the use of bio diesel in transport.

Constantine Iliopoulos; Stelios Rozakis

2010-01-01T23:59:59.000Z

279

Diesel Particle Filter and Fuel Effects on Heavy-Duty Diesel Engine Emissions  

Science Journals Connector (OSTI)

Diesel Particle Filter and Fuel Effects on Heavy-Duty Diesel Engine Emissions ... Gaseous and Particulate Emissions from Diesel Engines at Idle and under Load: Comparison of Biodiesel Blend and Ultralow Sulfur Diesel Fuels ...

Matthew A. Ratcliff; A. John Dane; Aaron Williams; John Ireland; Jon Luecke; Robert L. McCormick; Kent J. Voorhees

2010-10-01T23:59:59.000Z

280

Ultra-Low Sulfur diesel Update & Future Light Duty Diesel | Department...  

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

Ultra-Low Sulfur diesel Update & Future Light Duty Diesel Ultra-Low Sulfur diesel Update & Future Light Duty Diesel Presentation given at DEER 2006, August 20-24, 2006, Detroit,...

Note: This page contains sample records for the topic "direct injection diesel" 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

Response surface methodology based prediction of engine performance and exhaust emissions of a diesel engine fuelled with canola oil methyl ester  

Science Journals Connector (OSTI)

The objective of this study was to investigate the effect of fuel injection timing and engine speed on engine performance and exhaust emission parameters using a diesel engine running on canola oil methyl ester (COME). COME was produced by means of the transesterification method and tested at full load with various engine speeds by changing fuel injection timing (12 15 and 18?CA) in a turbocharged direct injection (TDI) diesel engine. The experiments were designed using response surface methodology (RSM) which is one of the well-known design of experiment technique for predicting the responses engine performance and exhaust emission parameters from a second order polynomial equation obtained by modeling the relation between fuel injection timing (t) and engine speed (n) parameters. By using the second order full quadratic RSM models obtained from experimental results responses brake power brake torque brake mean effective pressure brake specific fuel consumption brake thermal efficiency exhaust gas temperature oxygen (O2) oxides of nitrogen (NOx) carbon dioxide (CO2) carbon monoxide (CO) and light absorption coefficient (K) affected from factors t and n were able to be predicted by 95% confidence interval.

2013-01-01T23:59:59.000Z

282

Diesel Engine Alternatives  

SciTech Connect (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

283

Diesel Soot Toxification  

Science Journals Connector (OSTI)

(2) The second significant trend is the more defective bulk and surface structure as the result of alteration of the fuel combustion process. ... Although the development of improved particle filters and novel methods for particulate removal in diesel cars is an ongoing task for industry the ultimate answer could be given by the future statistical analysis of mortality due to soot exposition. ...

Benjamin Frank; Robert Schlgl; Dang Sheng Su

2013-03-11T23:59:59.000Z

284

Diesel Engine Idling Test  

SciTech Connect (OSTI)

In support of the Department of Energys FreedomCAR and Vehicle Technology Program Office goal to minimize diesel engine idling and reduce the consumption of millions of gallons of diesel fuel consumed during heavy vehicle idling periods, the Idaho National Laboratory (INL) conducted tests to characterize diesel engine wear rates caused by extended periods of idling. INL idled two fleet buses equipped with Detroit Diesel Series 50 engines, each for 1,000 hours. Engine wear metals were characterized from weekly oil analysis samples and destructive filter analyses. Full-flow and the bypass filter cartridges were removed at four stages of the testing and sent to an oil analysis laboratory for destructive analysis to ascertain the metals captured in the filters and to establish wear rate trends. Weekly samples were sent to two independent oil analysis laboratories. Concurrent with the filter analysis, a comprehensive array of other laboratory tests ascertained the condition of the oil, wear particle types, and ferrous particles. Extensive ferrogram testing physically showed the concentration of iron particles and associated debris in the oil. The tests results did not show the dramatic results anticipated but did show wear trends. New West Technologies, LLC, a DOE support company, supplied technical support and data analysis throughout the idle test.

Larry Zirker; James Francfort; Jordon Fielding

2006-02-01T23:59:59.000Z

285

Definition: Diesel fuel | Open Energy Information  

Open Energy Info (EERE)

Diesel fuel Diesel fuel Jump to: navigation, search Dictionary.png Diesel fuel A liquid fuel produced from petroleum; used in diesel engines.[1] View on Wikipedia Wikipedia Definition Diesel oil and Gazole (fuel) redirect here. Sometimes "diesel oil" is used to mean lubricating oil for diesel engines. Diesel fuel in general is any liquid fuel used in diesel engines. The most common is a specific fractional distillate of petroleum fuel oil, but alternatives that are not derived from petroleum, such as biodiesel, biomass to liquid (BTL) or gas to liquid (GTL) diesel, are increasingly being developed and adopted. To distinguish these types, petroleum-derived diesel is increasingly called petrodiesel. Ultra-low-sulfur diesel (ULSD) is a standard for defining diesel fuel with substantially lowered sulfur contents. As of 2007, almost

286

Effect of a homogeneous combustion catalyst on the combustion characteristics and fuel efficiency in a diesel engine  

Science Journals Connector (OSTI)

The influence of a ferrous picrate based homogeneous combustion catalyst on the combustion characteristics and fuel efficiency was studied using a fully instrumented diesel engine. A naturally aspirated four stroke, single cylinder, air cooled, direct injection diesel engine was tested at engine speeds of 2800rpm, 3200rpm and 3600rpm under variable load conditions, with different dosing ratio of the catalyst in a commercial diesel fuel. The results indicated that the brake specific fuel consumption decreased and the brake thermal efficiency increased with the addition of the catalyst. At the catalyst dosing ratio of 1:10,000, the brake specific fuel consumption was reduced by 3.34.2% at light engine load of 0.12MPa and 2.02.4% at heavy engine load of 0.4MPa due to the application of the catalyst. From the in-cylinder pressure and heat release rate analysis, it was found that the catalyst reduced ignition delay and combustion duration of fuel in the engine, resulting in slightly higher peak cylinder pressure and faster heat release rate.

Mingming Zhu; Yu Ma; Dongke Zhang

2012-01-01T23:59:59.000Z

287

Effect of Diesel Oxidation Catalysts on the Diesel Particulate Filter Regeneration Process  

Science Journals Connector (OSTI)

Effect of Diesel Oxidation Catalysts on the Diesel Particulate Filter Regeneration Process ... A Diesel Particulate Filter (DPF) regeneration process was investigated during aftertreatment exhaust of a simulated diesel engine under the influence of a Diesel Oxidation Catalyst (DOC). ... Diesel particulate matter (PM) significantly contributes to urban air pollution and has often been associated with adverse health effects. ...

Leonardo Lizarraga; Stamatios Souentie; Antoinette Boreave; Christian George; Barbara DAnna; Philippe Vernoux

2011-11-03T23:59:59.000Z

288

Coal-fueled diesel locomotive test  

SciTech Connect (OSTI)

The biggest challenges to the development of a commercially-acceptable coal-fueled diesel-electric locomotive are integrating all systems into a working unit that can be operated in railroad service. This involves mainly the following three systems: (1) the multi-cylinder coal-fueled diesel engine, (2) the locomotive and engine controls, and (3) the CWS fuel supply system. Consequently, a workable 12-cylinder coal-fueled diesel engine was considered necessary at this stage to evolve the required locomotive support systems, in addition to gaining valuable multi-cylinder engine operating experience. The CWS fuel used during this project was obtained from Otisca, Inc. (Syracuse, NY). It was prepared from micronized and deashed Kentucky Blue Gem coal to 49.0% coal loading by weight, with less than 1% ash and 5 micron mean diameter particle size. Its higher heating value was analyzed at approximately 34630 kJ/k. Anti-agglomerating additive Triton X-114 was added to the CWS at GE Transportation Systems at 2% of coal weight. The nature of the Otisca CWS fuel makes it inherently more difficult to store, pump, and inject than diesel fuel, since concepts which govern Newtonian or normally viscous liquids do not apply entirely to CWS. Otisca CWS tends to be unstable and to settle in tanks and lines after a period of time, making it necessary to provide a means of agitation during storage. To avoid long term settling problems and to minimize losses, piping velocities were designed to be in the 60-90 m/min range.

Hsu, B.D.; McDowell, R.E.; Confer, G.L.; Basic, S.L.

1993-01-01T23:59:59.000Z

289

Direct  

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

interactions, and the pollutant emission is hence directly proportional to the bulk neutral density. Simultaneously monitoring the total emission at 1040 nm and the...

290

Emission Characteristics of a Diesel Engine Operating with In-Cylinder Gasoline and Diesel Fuel Blending  

SciTech Connect (OSTI)

Advanced combustion regimes such as homogeneous charge compression ignition (HCCI) and premixed charge compression ignition (PCCI) offer benefits of reduced nitrogen oxides (NOx) and particulate matter (PM) emissions. However, these combustion strategies often generate higher carbon monoxide (CO) and hydrocarbon (HC) emissions. In addition, aldehydes and ketone emissions can increase in these modes. In this study, the engine-out emissions of a compression-ignition engine operating in a fuel reactivity- controlled PCCI combustion mode using in-cylinder blending of gasoline and diesel fuel have been characterized. The work was performed on a 1.9-liter, 4-cylinder diesel engine outfitted with a port fuel injection system to deliver gasoline to the engine. The engine was operated at 2300 rpm and 4.2 bar brake mean effective pressure (BMEP) with the ratio of gasoline to diesel fuel that gave the highest engine efficiency and lowest emissions. Engine-out emissions for aldehydes, ketones and PM were compared with emissions from conventional diesel combustion. Sampling and analysis was carried out following micro-tunnel dilution of the exhaust. Particle geometric mean diameter, number-size distribution, and total number concentration were measured by a scanning mobility particle sizer (SMPS). For the particle mass measurements, samples were collected on Teflon-coated quartz-fiber filters and analyzed gravimetrically. Gaseous aldehydes and ketones were sampled using dinitrophenylhydrazine-coated solid phase extraction cartridges and the extracts were analyzed by liquid chromatography/mass spectrometry (LC/MS). In addition, emissions after a diesel oxidation catalyst (DOC) were also measured to investigate the destruction of CO, HC and formaldehydes by the catalyst.

Prikhodko, Vitaly Y [ORNL; Curran, Scott [ORNL; Barone, Teresa L [ORNL; Lewis Sr, Samuel Arthur [ORNL; Storey, John Morse [ORNL; Cho, Kukwon [ORNL; Wagner, Robert M [ORNL; Parks, II, James E [ORNL

2010-01-01T23:59:59.000Z

291

Gasoline and Diesel Fuel Update  

Gasoline and Diesel Fuel Update (EIA)

Methodology For Gasoline and Diesel Fuel Pump Components Methodology For Gasoline and Diesel Fuel Pump Components The components for the gasoline and diesel fuel pumps are calculated in the following manner in cents per gallon and then converted into a percentage: Crude Oil - the monthly average of the composite refiner acquisition cost, which is the average price of crude oil purchased by refiners. Refining Costs & Profits - the difference between the monthly average of the spot price of gasoline or diesel fuel (used as a proxy for the value of gasoline or diesel fuel as it exits the refinery) and the average price of crude oil purchased by refiners (the crude oil component). Distribution & Marketing Costs & Profits - the difference between the average retail price of gasoline or diesel fuel as computed from EIA's

292

Effect of n-Heptane Premixing on Combustion Characteristics of Diesel Engine  

Science Journals Connector (OSTI)

Effect of n-Heptane Premixing on Combustion Characteristics of Diesel Engine ... Department of Mechanical Engineering, Hanyang University, 17 Haengdang-dong, Sungdong-gu, Seoul 133-791, Korea ... In a different analysis, Simescu et al.17 explained, using their diesel-fueled partial HCCI engines, that soot formed during the premixed combustion period before DI fuel injection is not oxidized completely and emitted as exhaust gas. ...

Dae Sik Kim; Chang Sik Lee

2005-09-23T23:59:59.000Z

293

Effect of Oxygenated Fuel on Combustion and Emissions in a Light-Duty Turbo Diesel Engine  

Science Journals Connector (OSTI)

The influence of fuel oxygen content on soot reduction in diesel engines is well-known. ... Fuel consumption was determined by weighing the fuel at the beginning and end of each test mode or each fuel blend through a Sartorius precision scale, with an accuracy of 2 g. ... studies on effects of oxygenated fuels in conjunction with single and split fuel injections were conducted at high and low loads on a Caterpillar SCOTE DI diesel engine. ...

Juhun Song; Kraipat Cheenkachorn; Jinguo Wang; Joseph Perez; Andr L. Boehman; Philip John Young; Francis J. Waller

2002-01-15T23:59:59.000Z

294

Impact of Biodiesel Blending on Diesel Soot and the Regeneration of Particulate Filters  

Science Journals Connector (OSTI)

Diesel fuel production from renewable sources such as vegetable oils and animal fats offers the potential of both reducing fossil carbon emissions and producing alternative ultraclean transportation fuels. ... For temperature-programmed oxidation (TPO) tests, bulk samples were collected in quartz filters from diluted exhaust gas via a mini-dilution tunnel (Sierra Instruments BG-1). ... In addition to PM mass measurement, particulate samples were extracted directly from the exhaust stream using a thermophoretic sampling approach patterned after the work of Megaridis15 and Koylu,16 and described previously by Song et al.17 The thermophoretic samples were collected on 3-mm-diameter grids, constructed of 1-?m-thick copper and coated on one side with silicon oxide, using a pneumatically controlled probe to inject the sampling grid into the undiluted exhaust near the location where the other emissions samples were obtained in the exhaust pipe. ...

Andr L. Boehman; Juhun Song; Mahabubul Alam

2005-06-01T23:59:59.000Z

295

Modeling of Diesel Oxidation Catalyst  

Science Journals Connector (OSTI)

Modeling of Diesel Oxidation Catalyst ... Optimization of hydrocarbon (HC) oxidation over a diesel oxidation catalyst (DOC) requires consideration of (i) HC gas diffusion into the catalyst layer, (ii) HC gas adsorption and desorption from catalyst sites, and (iii) kinetics of the oxidation reaction. ... Mutagenicity of Diesel Engine Exhaust Is Eliminated in the Gas Phase by an Oxidation Catalyst but Only Slightly Reduced in the Particle Phase ...

Yasushi Tanaka; Takashi Hihara; Makoto Nagata; Naoto Azuma; Akifumi Ueno

2005-09-30T23:59:59.000Z

296

Diesel fuel qualities  

SciTech Connect (OSTI)

As a result of rising fuel costs, many ship operators are turning to less expensive, heavier grade fuels for their diesel engines. Use of these lower quality fuels without adequate preparation can cause increased engine wear and damage to fuel systems. The oil properties which affect pretreatment and cleaning requirements, specifications that should be used when purchasing these fuels, and procedures for confirming that bought fuels meet purchase specifications are discussed. (LCL)

Blenkey, N.

1981-02-01T23:59:59.000Z

297

Performance Synergies between Low-Temperature and High-Temperature Fischer?Tropsch Diesel Blends  

Science Journals Connector (OSTI)

With both LTFT and HTFT diesels being nontraditional, alternative diesel fuels that can be used directly in the current fuelling infrastructure, the objective of this study was to investigate the potential synergies in fuel properties with blends of LTFT diesel and HTFT DHT diesel. ... Regulated exhaust emissions measured over the engine dynamometer test cycle in grams of pollutant per unit of mechanical energy delivered by the engine (g/kW h) included total hydrocarbon (THC), generally referred to as HC, CO, carbon dioxide (CO2), NOx, and PM. ... However, the general consumer should most probably not be able to notice the difference in volumetric fuel consumption. ...

Delanie Lamprecht; Luis P. Dancuart; Kaveer Harrilall

2007-08-31T23:59:59.000Z

298

Emissions and fuel economy of a prechamber diesel engine with natural gas dual fuelling  

SciTech Connect (OSTI)

A four-cylinder turbocharged prechamber diesel engine (Caterpillar 3304) was operated with natural gas and pilot diesel fuel ignition over a wide range of load and speed. Measurements were made of fuel consumption and the emissions of unburned hydrocarbons, carbon monoxide, and the oxides of nitrogen. Improvements in fuel economy and emissions were found to be affected by the diesel fuel-gas fraction, and by air restriction and fuel injection timing. Boundaries of unstable, inefficient and knocking operation were defined and the importance of gas-air equivalance ratio was demonstrated in its effect on economy, emissions and stability of operation.

Ding, X.; Hill, P.G.

1986-01-01T23:59:59.000Z

299

Emulsified fuel testing in a medium speed diesel engine. Final report Feb 81-Apr 82  

SciTech Connect (OSTI)

Medium-speed diesel engine testing of fuel-water emulsification with various grades of diesel fuel was conducted in order to determine the effect of water emulsification on engine performance. Emulsions from 0 to 12% water (by volume) were test run with various water particle sizes, injection timings, and engine loads with four separate fuels: Marine diesel, 1500 SR1, 3500 SR1, and 5000 SR1. Experimental results are presented for the basic engine performance areas for the various conditions run, focusing mainly on the effects of water emulsification on fuel consumption, exhaust emissions, and engine component wear rates. Details of the emulsification system are also discussed.

Barich, J.J.; Hinrichs, T.L.; Pearce, K.R.

1982-06-01T23:59:59.000Z

300

diesel | OpenEI  

Open Energy Info (EERE)

diesel diesel Dataset Summary Description The JodiOil World Database is freely available from the Joint Organisations Data Initiative (JODI) and is updated on or around the 20th of each month. Source JODI Date Released October 01st, 2004 (10 years ago) Date Updated March 21st, 2011 (3 years ago) Keywords crude oil diesel fuel oil gasoline kerosene LPG Data application/zip icon Text file, all JODI Database data: Jan 2002 - Jan 2011 (zip, 14.5 MiB) application/pdf icon Definitions of Abbreviations and Codes (pdf, 698.3 KiB) application/pdf icon Column Headings for Dataset (pdf, 13.4 KiB) Quality Metrics Level of Review Some Review Comment Some of the data has "some review" and some of the data has "no review"; the supplemental documentation provides definitions for the assessment codes for each piece of data in the datasets (essentially, 1 = some review, 2 = use with caution, 3 = not reviewed)

Note: This page contains sample records for the topic "direct injection diesel" 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

Diesel de Azufre Ultra Bajo  

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

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

302

Sandia National Laboratories: Diesel Combustion  

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

Diesel Combustion Caterpillar, Sandia CRADA Opens Door to Multiple Research Projects On April 17, 2013, in Capabilities, Computational Modeling & Simulation, CRF, Materials...

303

Optimizing Low Temperature Diesel Combustion  

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

Diesel Particulate Filter Regenerations," SAE Paper 2007-01-3970, SAE Fall Powertrain and Fluids Systems Conference, Chicago, IL, Oct. 2007. * "Comprehensive Characterization of...

304

High-speed four-color infrared digital imaging for study in-cylinder processes in a di diesel engine  

SciTech Connect (OSTI)

The study was to investigate in-cylinder events of a direct injection-type diesel engine by using a new high-speed infrared (IR) digital imaging systems for obtaining information that was difficult to achieve by the conventional devices. For this, a new high-speed-dual-spectra infrared digital imaging system was developed to simultaneously capture two geometrically identical (in respective spectral) sets of IR images having discrete digital information in a (64x64) matrix at rates as high as over 1,800 frames/sec each with exposure period as short as 20 usec. At the same time, a new advanced four-color IR imaging system was constructed. The first two sets of spectral data were the radiation from water vapor emission bands to compute the distributions of temperature and specie in the gaseous mixture and the remaining two sets of data were to find the instantaneous temperature distribution over the cylinder surface. More than eight reviewed publications have been produced to report many new findings including: Distributions of Water Vapor and Temperature in a Flame; End Gas Images Prior to Onset of Knock; Effect of MTBE on Diesel Combustion; Impact of Oxygen Enrichment on In-cylinder Reactions; Spectral IR Images of Spray Plume; Residual Gas Distribution; Preflame Reactions in Diesel Combustion; Preflame Reactions in the End Gas of an SI Engine; Postflame Oxidation; and Liquid Fuel Layers during Combustion in an SI Engine. In addition, some computational analysis of diesel combustion was performed using KIVA-II program in order to compare results from the prediction and the measurements made using the new IR imaging diagnostic tool.

Rhee, K.T.

1995-07-12T23:59:59.000Z

305

Electrically-Assisted Diesel Particulate Filter Regeneration...  

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

Evaluation pm041lance2011p.pdf More Documents & Publications Electrically-Assisted Diesel Particulate Filter Regeneration Substrate Studies of an Electrically-Assisted Diesel...

306

Toxic components in diesel exhaust fumes  

Science Journals Connector (OSTI)

To control diesel-engine toxicity, a computation method is proposed for the concentration of toxic components in diesel exhaust fumes, on the basis of external engine...

A. F. Dorokhov; E. V. Klimova

2009-12-01T23:59:59.000Z

307

Electrochemical NOx Sensor for Monitoring Diesel Emissions  

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

fuel economy - Completely compatible with biodiesel Estimate diesel light-vehicle penetration to increase from 3% (2007) to 14% by 2017 * Problem: Diesel technology is...

308

Optimization of Advanced Diesel Engine Combustion Strategies...  

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

Optimization of Advanced Diesel Engine Combustion Strategies Optimization of Advanced Diesel Engine Combustion Strategies 2010 DOE Vehicle Technologies and Hydrogen Programs Annual...

309

Catalytic Filter for Diesel Exhaust Purification | Department...  

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

Filter for Diesel Exhaust Purification This project is developing a precious metal-free passive diesel particulate filter. deer09fokema.pdf More Documents & Publications...

310

Diesel vs Gasoline Production | Department of Energy  

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

vs Gasoline Production Diesel vs Gasoline Production A look at refinery decisions that decide "swing" between diesel and gasoline production deer08leister.pdf More Documents &...

311

Emissions and fuel economy of a vehicle with a spark-ignition, direct-injection engine : Mitsubishi Legnum GDI{trademark}.  

SciTech Connect (OSTI)

A 1997 Mitsubishi Legnum station wagon with a 150-hp, 1.8-L, spark-ignition, direct-injection (SIDI) engine was tested for emissions by using the FTP-75, HWFET, SC03, and US06 test cycles and four different fuels. The purpose of the tests was to obtain fuel-economy and emissions data on SIDI vehicles and to compare the measurements obtained with those of a port-fuel-injection (PFI) vehicle. The PFI vehicle chosen for the comparison was a 1995 Dodge Neon, which meets the Partnership for a New Generation of Vehicles (PNGV) emissions goals of nonmethane hydrocarbons (NMHC) less than 0.125 g/mi, carbon monoxide (CO) less than 1.7 g/mi, nitrogen oxides (NO{sub x} ) less than 0.2 g/mi, and particulate matter (PM) less than 0.01 g/mi. The Mitsubishi was manufactured for sale in Japan and was not certified to meet current US emissions regulations. Results show that the SIDI vehicle can provide up to 24% better fuel economy than the PFI vehicle does, with correspondingly lower greenhouse gas emissions. The SIDI vehicle as designed does not meet the PNGV goals for NMHC or NO{sub x} emissions, but it does meet the goal for CO emissions. Meeting the goal for PM emissions appears to be contingent upon using low-sulfur fuel and an oxidation catalyst. One reason for the difficulty in meeting the NMHC and NO{sub x} goals is the slow (200 s) warm-up of the catalyst. Catalyst warm-up time is primarily a matter of design. The SIDI engine produces more NMHC and NO{sub x} than the PFI engine does, which puts a greater burden on the catalyst to meet the emissions goals than is the case with the PFI engine. Oxidation of NMHC is aided by unconsumed oxygen in the exhaust when the SIDI engine operates in stratified-charge mode, but the same unconsumed oxygen inhibits chemical reduction of NO{sub x} . Thus, meeting the NO{sub x} emissions goal is likely to be the greatest challenge for the SIDI engine.

Cole, R. L.; Poola, R. B.; Sekar, R.

1999-04-08T23:59:59.000Z

312

Fumigation of a diesel engine with low Btu gas  

SciTech Connect (OSTI)

A 0.5 liter single-cylinder, indirect-injection diesel engine has been fumigated with producer gas. Measurements of power, efficiency, cylinder pressure, and emissions were made. At each operating condition, engine load was held constant, and the gas-to-diesel fuel ratio was increased until abnormal combustion was encountered. This determined the maximum fraction of the input energy supplied by the gas, E/sub MAX/, which was found to be dependent upon injection timing and load. At light loads, E/sub MAX/ was limited by severe efficiency loss and missfire, while at heavy loads it was limited by knock or preignition. Fumigation generally increased ignition delay and heat release rates, but peak pressures were not strongly influenced. Efficiency was slightly decreased by fumigation as were NO/sub X/ and particle emissions while CO emissions were increased.

Ahmadi, M.; Kittelson, D.B.

1985-01-01T23:59:59.000Z

313

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

E-Print Network [OSTI]

diesel fuel consumption, lubricant changes, and enginefuel consumption, and costs associated with diesel engineDiesel Idling diesel consumption Diesel fuel cost Lubricant cost Engine

2002-01-01T23:59:59.000Z

314

Reformulated diesel fuel and method  

DOE Patents [OSTI]

A method for mathematically identifying at least one diesel fuel suitable for combustion in an automotive diesel engine with significantly reduced emissions and producible from known petroleum blendstocks using known refining processes, including the use of cetane additives (ignition improvers) and oxygenated compounds.

McAdams, Hiramie T [Carrollton, IL; Crawford, Robert W [Tucson, AZ; Hadder, Gerald R [Oak Ridge, TN; McNutt, Barry D [Arlington, VA

2006-08-22T23:59:59.000Z

315

Diesel prices continue to rise  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices continue to rise The U.S. average retail price for on-highway diesel fuel rose to 4.16 a gallon on Monday. That's up 5.3 cents from a week ago, based on the weekly...

316

Diesel prices up this week  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices up this week The U.S. average retail price for on-highway diesel fuel rose sharply to 4.10 a gallon on Monday. That's up 8.2 cents from a week ago and 17.7 cents...

317

Gasoline and Diesel Fuel Update  

Gasoline and Diesel Fuel Update (EIA)

Procedures, Methodology, and Coefficients of Variation Procedures, Methodology, and Coefficients of Variation Diesel Fuel Price Data Collection Procedures Every Monday, cash self-serve on-highway diesel prices (including taxes) are collected from a sample of approximately 400 retail diesel outlets in the continental U.S. The sample includes a combination of truck stops and service stations that sell on-highway diesel fuel. The data represent the price of ultra low sulfur diesel (ULSD) which contains less than 15 parts-per-million sulfur. The prices are collected via telephone, fax, email, or the internet from participating outlets. All collected prices are subjected to automated edit checks during data collection and data processing. Data flagged by the edits are verified with the respondents. Imputation is used for companies

318

Retail Diesel Fuel Oil Prices  

Gasoline and Diesel Fuel Update (EIA)

Along with heating oil prices, the distillate supply squeeze has Along with heating oil prices, the distillate supply squeeze has severely impacted diesel fuel prices, especially in the Northeast. Retail diesel price data are available sooner than residential heating oil data. This graph shows that diesel prices turned the corner sometime after February 7 and are heading down. Retail diesel fuel prices nationally, along with those of most other petroleum prices, increased steadily through most of 1999. Prices jumped dramatically (by over 11 cents per gallon) in the third week of January, and rose 2 or more cents a week through February 7. The increases were much more rapid in the Northeast. From January 17 through February 7, diesel fuel prices in New England rose nearly 68 cents per gallon, or 47 percent. Prices in the Mid-Atlantic region rose about 58

319

Federal Tax Credit for Diesels  

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

Diesels Diesels Diesel Vehicle Federal tax credit up to $3,400! Some diesels purchased or placed into service after December 31, 2005 may be eligible for a federal income tax credit of up to $3,400. (No eligible vehicles were manufactured for sale until 2008.) Credit amounts begin to phase out for a given manufacturer once it has sold over 60,000 eligible hybrid and diesel vehicles. Vehicles purchased after December 31, 2010 are not eligible for this credit. The information below is provided for those filing amended tax returns for previous years. Audi BMW Mercedes-Benz Volkswagen All Vehicle Make & Model Full Credit Phase Out No Credit 50% 25% Audi Jan. 1, 2006 July 1 - Dec. 31, 2010 Not Applicable Jan. 1, 2011 Audi A3 TDI 2010-11 Audi A3 2.0L TDI $1,300 $650 -- $0

320

"Performance, Emission and Particle distribution of Diesel Engines Fueled with Diesel-Dimethoxymethane (DMM) Blends"  

E-Print Network [OSTI]

Xibin Wang "Performance, Emission and Particle distribution of Diesel Engines Fueled with Diesel-Dimethoxymethane (DMM) Blends" Abstract : Combustion, performance and emission were studied for DI diesel engine fuelled with DMM/diesel fuel blends for DMM content from 0 to 50%. Results showed that, for diesel engine with fuel

Note: This page contains sample records for the topic "direct injection diesel" 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

Characteristics of Soot and Particle Size Distribution in the Exhaust of a Common Rail Light-Duty Diesel Engine Fuelled with Biodiesel  

Science Journals Connector (OSTI)

Limited studies have been accumulated as to the effects of biodiesel on PSD in light-duty modern diesel engines employed with common rail (CR) injection system and exhaust gas recirculation (EGR) that are currently widely used in transportation vehicles in European and U.S. markets. ... 0 diesel, which is commonly used in the Chinese market. ...

Xusheng Zhang; Zhijun Wu; Liguang Li

2012-08-09T23:59:59.000Z

322

Heavy Duty Diesels- The Road Ahead  

Broader source: Energy.gov [DOE]

This presentation gives a landscape picture of diesel engine technologies from the Daimler point of view.

323

Alternative Fuels Data Center: Diesel Vehicle Availability  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Diesel Vehicle Diesel Vehicle Availability to someone by E-mail Share Alternative Fuels Data Center: Diesel Vehicle Availability on Facebook Tweet about Alternative Fuels Data Center: Diesel Vehicle Availability on Twitter Bookmark Alternative Fuels Data Center: Diesel Vehicle Availability on Google Bookmark Alternative Fuels Data Center: Diesel Vehicle Availability on Delicious Rank Alternative Fuels Data Center: Diesel Vehicle Availability on Digg Find More places to share Alternative Fuels Data Center: Diesel Vehicle Availability on AddThis.com... More in this section... Biodiesel Basics Benefits & Considerations Stations Vehicles Availability Emissions Laws & Incentives Diesel Vehicle Availability According to J.D. Power Automotive Forecasting, demand for light-duty diesel vehicles might double in the next 10 years. More auto manufacturers

324

North American Market Challenges for Diesel Engines | Department...  

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

North American Market Challenges for Diesel Engines North American Market Challenges for Diesel Engines 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Gale...

325

Future Breathing System Requirements for Clean Diesel Engines...  

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

Breathing System Requirements for Clean Diesel Engines Future Breathing System Requirements for Clean Diesel Engines Poster presentation at the 2007 Diesel Engine-Efficiency &...

326

Achieving High-Effiency Clean Ccombustion in Diesel Engines ...  

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

Achieving High-Effiency Clean Ccombustion in Diesel Engines Achieving High-Effiency Clean Ccombustion in Diesel Engines 2004 Diesel Engine Emissions Reduction (DEER) Conference...

327

Technical Challenges and Opportunities Light-Duty Diesel Engines...  

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

Challenges and Opportunities Light-Duty Diesel Engines in North America Technical Challenges and Opportunities Light-Duty Diesel Engines in North America 2005 Diesel Engine...

328

SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES | Department of...  

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

SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

329

Engine Materials for Clean Diesel Technology: An Overview | Department...  

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

Materials for Clean Diesel Technology: An Overview Engine Materials for Clean Diesel Technology: An Overview Presentation given at the 2007 Diesel Engine-Efficiency & Emissions...

330

Update on 2007 Diesel Particulate Measurement Research | Department...  

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

2007 Diesel Particulate Measurement Research Update on 2007 Diesel Particulate Measurement Research 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and...

331

An Improvement of Diesel PM and NOx Reduction System | Department...  

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

& Publications Development on simultaneous reduction system of NOx and PM from a diesel engine An Improvement of Diesel PM and NOx Reduction System New Diesel Emissions...

332

Predicting Thermal Stress in Diesel Particulate Filters | Department...  

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

Thermal Stress in Diesel Particulate Filters Predicting Thermal Stress in Diesel Particulate Filters 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Corning...

333

Cummins Light Truck Clean Diesel | Department of Energy  

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

Light Truck Clean Diesel Cummins Light Truck Clean Diesel 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation 2004deerstang2.pdf More Documents & Publications...

334

Synthesis and Evaluation of Wax Dispersant for Diesel  

Science Journals Connector (OSTI)

Synthesis and Evaluation of Wax Dispersant for Diesel ... We can predict that the sensitivity of diesels A and C will be better than that of diesel B. ...

Wangang Zheng; Shujun Wang; Jie Liu; Fanbin Meng; Yanshan Li; Huanqing Ma; Ting Li

2014-02-28T23:59:59.000Z

335

The State of the Science in Diesel Particulate Control | Department...  

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

The State of the Science in Diesel Particulate Control The State of the Science in Diesel Particulate Control 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations...

336

Regulated Emissions from Diesel and Compressed Natural Gas Transit...  

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

Emissions from Diesel and Compressed Natural Gas Transit Buses Regulated Emissions from Diesel and Compressed Natural Gas Transit Buses Poster presentaiton at the 2007 Diesel...

337

Lubricant Formulation and Consumption Effects on Diesel Exhaust...  

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

Lubricant Formulation and Consumption Effects on Diesel Exhaust Ash Emissions: Lubricant Formulation and Consumption Effects on Diesel Exhaust Ash Emissions: 2005 Diesel Engine...

338

Neutron Imaging of Diesel Particulate Filters | Department of...  

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

Neutron Imaging of Diesel Particulate Filters Neutron Imaging of Diesel Particulate Filters Neutron computed tomography shows soot and ash loading in a cordierite diesel...

339

Impact of Clean Diesel Technology on Climate Change | Department...  

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

Clean Diesel Technology on Climate Change Impact of Clean Diesel Technology on Climate Change 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Brookhaven...

340

Alloy Foam Diesel Emissions Control School Bus Implementation...  

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

Alloy Foam Diesel Emissions Control School Bus Implementation Alloy Foam Diesel Emissions Control School Bus Implementation Poster presentation from the 2007 Diesel...

Note: This page contains sample records for the topic "direct injection diesel" 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

How Exhaust Emissions Drive Diesel Engine Fuel Efficiency | Department...  

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

How Exhaust Emissions Drive Diesel Engine Fuel Efficiency How Exhaust Emissions Drive Diesel Engine Fuel Efficiency 2004 Diesel Engine Emissions Reduction (DEER) Conference...

342

Perspectives Regarding Diesel Engine Emissions Reduction in the...  

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

Perspectives Regarding Diesel Engine Emissions Reduction in the Northeast Perspectives Regarding Diesel Engine Emissions Reduction in the Northeast 2004 Diesel Engine Emissions...

343

Verification of Shell GTL Fuel as CARB Alternative Diesel | Department...  

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

Verification of Shell GTL Fuel as CARB Alternative Diesel Verification of Shell GTL Fuel as CARB Alternative Diesel Presentation given at the 2007 Diesel Engine-Efficiency &...

344

Hydrogen as a Supplemental Fuel in Diesel Engines | Department...  

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

as a Supplemental Fuel in Diesel Engines Hydrogen as a Supplemental Fuel in Diesel Engines Poster presentation from the 2007 Diesel Engine-Efficiency & Emissions Research...

345

Electrochemical NOxSensor for Monitoring Diesel Emissions | Department...  

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

Diesel Emissions Electrochemical NOxSensor for Monitoring Diesel Emissions pm02glass.pdf More Documents & Publications Electrochemical NOx Sensor for Monitoring Diesel...

346

DOE's Gasoline/Diesel PM Split Study | Department of Energy  

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

GasolineDiesel PM Split Study DOE's GasolineDiesel PM Split Study 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005deerfujita.pdf More...

347

Business Case for Light-Duty Diesels | Department of Energy  

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

Business Case for Light-Duty Diesels Business Case for Light-Duty Diesels 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005deergodwin.pdf...

348

New Catalysts for Green Diesel | The Ames Laboratory  

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

New Catalysts for Green Diesel A new economical and efficient catalyst for upgrading renewable feedstocks to green diesel has been created. Green diesel, produced by converting...

349

Next Generation Diesel Engine Control | Department of Energy  

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

Diesel Engine Control Next Generation Diesel Engine Control Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007,...

350

Model Identification for Optimal Diesel Emissions Control  

SciTech Connect (OSTI)

In this paper we develop a model based con- troller for diesel emission reduction using system identification methods. Specifically, our method minimizes the downstream readings from a production NOx sensor while injecting a minimal amount of urea upstream. Based on the linear quadratic estimator we derive the closed form solution to a cost function that accounts for the case some of the system inputs are not controllable. Our cost function can also be tuned to trade-off between input usage and output optimization. Our approach performs better than a production controller in simulation. Our NOx conversion efficiency was 92.7% while the production controller achieved 92.4%. For NH3 conversion, our efficiency was 98.7% compared to 88.5% for the production controller.

Stevens, Andrew J.; Sun, Yannan; Song, Xiaobo; Parker, Gordon

2013-06-20T23:59:59.000Z

351

AIR POLLUTION: Diesel Fuel Culprits  

Science Journals Connector (OSTI)

AIR POLLUTION: Diesel Fuel Culprits ... Low-molecular-weight components aren't necessarily the true culprits of diesel fuel pollution, although they do contribute to it, according to Hertha Skala, assistant director of research, and her coworkers F. G. Padrta and P. C. Samson at Universal Oil Products. ... At the first national symposium on heterogeneous catalysis for control of air pollution, sponsored by Philadelphia's Franklin Institute, Mrs. Skala identified five different classes of oxygenated hydrocarbons found over the full molecular-weight range of diesel fuel components. ...

1968-12-02T23:59:59.000Z

352

An experimental investigation on the performance, emission and combustion characteristics of preheated calophyllum inophyllum linn oil (honne oil) fed DI diesel engine  

Science Journals Connector (OSTI)

The present work examines the use of a non-edible vegetable oil namely honne oil, a new possible source of alternative fuel for diesel engine. The use of honne oil (unheated and preheated) in an agricultural direct injection (DI) diesel engine has not been reported in the literature. The high viscosity of honne oil can be reduced by preheating (preheated to 60C). The effect of temperature on the viscosity of honne oil has been investigated. Using preheated honne oil, brake thermal efficiency (BTE) and exhaust gas temperature (EGT) is increased compared to unheated honne oil. The emissions such as smoke opacity (SO), CO and HC of preheated honne oil were reduced and NOx emissions of preheated honne oil were increased compared to unheated honne oil. Premixed combustion phase of preheated honne oil is better than unheated honne oil and ND. Hence, preheated honne oil could be used in diesel engine for short-term application without any engine modification and adverse effect.

B.K. Venkanna; C. Venkataramana Reddy

2013-01-01T23:59:59.000Z

353

Gasoline and Diesel Fuel Update  

Gasoline and Diesel Fuel Update (EIA)

Price Data Collection Procedures Price Data Collection Procedures Every Monday, cash self-serve on-highway diesel prices (including taxes) are collected from a sample of approximately 400 retail diesel outlets in the continental U.S. The sample includes a combination of truck stops and service stations that sell on-highway diesel fuel. The data represent the price of ultra low sulfur diesel (ULSD) which contains less than 15 parts-per-million sulfur. The prices are collected via telephone, fax, email, or the internet from participating outlets. All collected prices are subjected to automated edit checks during data collection and data processing. Data flagged by the edits are verified with the respondents. Imputation is used for companies that cannot be contacted and for reported prices that are extreme outliers.

354

Materials - Catalysts for Diesel Engines  

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

355

Rudolf Diesel, 18581913  

Science Journals Connector (OSTI)

... that has in recent years seen spectacular changes) was the advent of the compression-ignition engine as a prime mover with its notable promoter, Rudolf ... as a prime mover with its notable promoter, Rudolf Diesel. ...

E. J. HOLMGREN

1958-03-15T23:59:59.000Z

356

Adaptive Injection Strategies (AIS) for Ultra-low Emissions Diesel...  

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

of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). deer07sun.pdf More Documents & Publications Experiments and Modeling of Two-Stage Combustion in...

357

Diesel emission control: Catalytic filters for particulate removal  

Science Journals Connector (OSTI)

The European diesel engine industry represents a vital sector across the Continent, with more than 2 million direct work positions and a turnover of over 400 billion Euro. Diesel engines provide large paybacks to society since they are extensively used to transport goods, services and people. In recent years increasing attention has been paid to the emissions from diesel engines which, like gasoline engine emissions, include carbon monoxide (CO), hydrocarbons (HC) and oxides of nitrogen (NOx). Diesel engines also produce significant levels of particulate matter (PM), which consists mostly of carbonaceous soot and a soluble organic fraction (SOF) of hydrocarbons that have condensed on the soot.Meeting the emission levels imposed for NOx and PM by legislation (Euro IV in 2005 and, in the 2008 perspective, Euro V) requires the development of a number of critical technologies to fulfill these very stringent emission limits (e.g. 0.005g/km for PM). This review is focused on these innovative technologies with special reference to catalytic traps for diesel particulate removal.

Debora Fino

2007-01-01T23:59:59.000Z

358

Diesel fueled ship propulsion fuel cell demonstration project  

SciTech Connect (OSTI)

The paper describes the work underway to adapt a former US Navy diesel electric drive ship as a 2.4 Megawatt fuel cell powered, US Coast Guard operated, demonstrator. The Project will design the new configuration, and then remove the four 600 kW diesel electric generators and auxiliaries. It will design, build and install fourteen or more nominal 180 kW diesel fueled molten carbonate internal reforming direct fuel cells (DFCs). The USCG cutter VINDICATOR has been chosen. The adaptation will be carried out at the USCG shipyard at Curtis Bay, MD. A multi-agency (state and federal) cooperative project is now underway. The USCG prime contractor, AEL, is performing the work under a Phase III Small Business Innovation Research (SBIR) award. This follows their successful completion of Phases I and II under contract to the US Naval Sea Systems (NAVSEA) from 1989 through 1993 which successfully demonstrated the feasibility of diesel fueled DFCs. The demonstrated marine propulsion of a USCG cutter will lead to commercial, naval ship and submarine applications as well as on-land applications such as diesel fueled locomotives.

Kumm, W.H. [Arctic Energies Ltd., Severna Park, MD (United States)

1996-12-31T23:59:59.000Z

359

Injection-Induced Earthquakes  

Science Journals Connector (OSTI)

...sounds safe enough. But if the deep aquifer system was originally underpressured...directed toward protection of potable aquifers by requiring injection into formations...much smaller magnitudes. The largest fracking-induced earthquakes (24, 26) have all been below the damage...

William L. Ellsworth

2013-07-12T23:59:59.000Z

360

Vehículos Diesel  

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

Vehículos Diesel Vehículos Diesel Audi A3 Los vehículos Diesel podrían estar de regreso. Los motores de Diesel son más poderosos y ahorradores de gasolina en comparación con los motores de gasolina del mismo tamaño (un 30-35% aprox. más eficientes en su consumo). Además, los vehículos diesel son mejores que los que se fabricaban en el pasado. Mejor Desempeño Tienen mejores inyectores de combustible y tecnologías electrónicas en sus controles Más poder Aceleración Mejorada Más Eficiencia Los nuevos diseños en los motores, además de las tecnologías de reducción de ruido y vibración, los han hecho silenciosos y suaves en su manejo. El arranque en clima-frío también ha sido mejorado. Más Limpios Mercedes ML320 BlueTEC En la actualidad los diesels deben cumplir con los mismos estándares de

Note: This page contains sample records for the topic "direct injection diesel" 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

Hybrid Time Formulation for Diesel Blending and Distribution Scheduling  

Science Journals Connector (OSTI)

Hybrid Time Formulation for Diesel Blending and Distribution Scheduling ... Schematic of diesel in-line blending and distribution infrastructure. ...

Srgio M. S. Neiro; Valria V. Murata; Jos M. Pinto

2014-06-13T23:59:59.000Z

362

Durability of Diesel Particulate Filters - Bench Studies on Cordierite...  

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

& Publications Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization Development of Advanced Diesel Particulate Filtration (DPF) Systems fundamental...

363

Effects of Fuel Physical Properties on Diesel Engine Combustion Using Diesel and Bio-Diesel Fuels  

SciTech Connect (OSTI)

A computational study is performed to investigate the effects of physical property on diesel engine combustion characteristics using bio-diesel fuels. Properties of typical bio-diesel fuels that were either calculated or measured are used in the study and the simulation results are compared with those of conventional diesel fuels. Sensitivity of the computational results to individual physical properties is also investigated, and the results can provide information for desirable characteristics of the blended fuels. The properties considered in this study include liquid density, vapor pressure, surface tension, liquid viscosity, liquid thermal conductivity, liquid specific heat, latent heat, vapor specific heat, vapor diffusion coefficient, vapor viscosity and vapor thermal conductivity. The results show significant effects of the fuel physical properties on ignition delay and burning rates at various engine operating conditions. It is seen that there is no single physical property that dominates differences of ignition delay between diesel and bio-diesel fuels. However, among the 11 properties considered in the study, the simulation results were found to be most sensitive to the liquid fuel density, vapor pressure and surface tension through their effects on the mixture preparation processes.

Ra, Youngchul [ORNL; Reitz, Rolf [University of Wisconsin; McFarlane, Joanna [ORNL; Daw, C Stuart [ORNL

2007-01-01T23:59:59.000Z

364

Tevatron injection timing  

SciTech Connect (OSTI)

Bunched beam transfer from one accelerator to another requires coordination and synchronization of many ramped devices. During collider operation timing issues are more complicated since one has to switch from proton injection devices to antiproton injection devices. Proton and antiproton transfers are clearly distinct sequences since protons and antiprotons circulate in opposite directions in the Main Ring (MR) and in the Tevatron. The time bumps are different, the kicker firing delays are different, the kickers and lambertson magnets are different, etc. Antiprotons are too precious to be used for tuning purposes, therefore protons are transferred from the Tevatron back into the Main Ring, tracing the path of antiprotons backwards. This tuning operation is called ``reverse injection.`` Previously, the reverse injection was handled in one supercycle. One batch of uncoalesced bunches was injected into the Tevatron and ejected after 40 seconds. Then the orbit closure was performed in the MR. In the new scheme the lambertson magnets have to be moved and separator polarities have to be switched, activities that cannot be completed in one supercycle. Therefore, the reverse injection sequence was changed. This involved the redefinition of TVBS clock event $D8 as MRBS $D8 thus making it possible to inject 6 proton batches (or coalesced bunches) and eject them one at a time on command, performing orbit closure each time in the MR. Injection devices are clock event driven. The TCLK is used as the reference clock. Certain TCLK events are triggered by the MR beam synchronized clock (MRBS) events. Some delays are measured in terms of MRBS ticks and MR revolutions. See Appendix A for a brief description of the beam synchronized clocks.

Saritepe, S.; Annala, G.

1993-06-01T23:59:59.000Z

365

High-speed four-color infrared digital imaging for studying in-cylinder processes in a DI diesel engine. Final report  

SciTech Connect (OSTI)

The study was to investigate in-cylinder events of a direct injection-type diesel engine by using a new high-speed infrared (IR) digital imaging systems for obtaining information that was difficult to achieve by the conventional devices. For this, a new high-speed dual-spectra infrared digital imaging system was developed to simultaneously capture two geometrically identical (in respective spectral) sets of IR images having discrete digital information in a (64x64) matrix at rates as high as over 1,800 frames/sec each with exposure period as short as 20 micron sec. At the same time, a new advanced four-color W imaging system was constructed. The first two sets of spectral data were the radiation from water vapor emission bands to compute the distributions of temperature and specie in the gaseous mixture and the remaining two sets of data were to find the instantaneous temperature distribution over the cylinder surface. More than eight reviewed publications have been produced to report many new findings including: Distributions of Water Vapor and Temperature in a Flame; End Gas Images Prior to Onset of Knock; Effect of MTBE on Diesel Combustion; Impact of Oxygen Enrichment on In-cylinder Reactions; Spectral IR Images of Spray Plume; Residual Gas Distribution; Preflame Reactions in Diesel Combustion; Preflame Reactions in the End Gas of an SI Engine; Postflame Oxidation; and Liquid Fuel Layers during Combustion in an SI Engine. In addition, some computational analysis of diesel combustion was performed using KIVA-II program in order to compare results from the prediction and the measurements made using the new IR imaging diagnostic tool.

Rhee, K.T.

1995-07-12T23:59:59.000Z

366

(1) Land and Marine Diesel Engines (2) Diesel Enginesfor Land and Marine Work  

Science Journals Connector (OSTI)

... titles given above, it might be supposed that these two recently published treatises on the Diesel ...

A. J. M.

1916-04-20T23:59:59.000Z

367

Effects of oxygenated fuel blends on carbonaceous particulate composition and particle size distributions from a stationary diesel engine  

Science Journals Connector (OSTI)

Abstract A systematic study was conducted to evaluate and compare the effects of blending five different oxygenated compounds, diglyme (DGM), palm oil methyl ester (PME), dimethyl carbonate (DMC), diethyl adipate (DEA) and butanol (Bu) with ultralow sulfur diesel (ULSD), on engine performance, particulate mass concentrations, organic (OC) and elemental (EC) carbon fractions of the particles and particle size distributions from a single cylinder, direct injection stationary diesel engine with the engine working at a constant engine speed and at three engine loads. A small increase in the brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE) was observed with the use of oxygenates blended with ULSD. All five oxygenates were found to be effective at reducing particulate mass emissions at medium and high engine loads, with butanol being the most effective and DGM being the least effective. Analysis of the relative contribution of changes in the OC and EC emissions to the reduction of particulate matter indicated that under the same oxygen content, EC made a dominant contribution to the reduction of particulate mass. The results also indicated that reduction in both particle mass and number emissions was affected not only by the oxygen content, but also by the chemical structure and thermophysical properties of oxygenates as well as engine operating conditions.

Zhi-Hui Zhang; Rajasekhar Balasubramanian

2015-01-01T23:59:59.000Z

368

Comparative Study of Performance and Combustion Characteristics of Conventional and Low Heat Rejection (Mullite Coated) Diesel Engines  

Science Journals Connector (OSTI)

Tests were performed on a single cylinder, four stroke, direct injection, diesel engine whose piston crown, cylinder head and valves were coated with a 0.5 mm thickness of 3Al2O32SiO2 (mullite) (Al2O3 = 60%, SiO2 = 40%) over a 150 ?m thickness of NiCrAlY bond coat. The working conditions for the conventional engine (without coating) and LHR (mullite coated) engine were kept exactly same to ensure a comparison between the two configurations of the engine. This paper is intended to emphasis on performance and combustion characteristics of conventional and LHR (Mullite coated) diesel engines under identical conditions. Tests were carried out at same operational constraints i.e. air-fuel ratio and engine speed conditions for both conventional engine (without coating) and LHR (mullite coated) engines. The results showed that, there was as much as 1.8 % increasing on brake power for LHR (mullite coated) engine compared to conventional engine (without coating) at full load The average decrease in brake specific fuel consumption in the LHR engine compared with the conventional engine was 1.76 % for full engine load. However, there was increasing on cylinder gas pressure and net heat release rate for LHR engine compared to conventional engine. Also the results revealed that, there was as much as 22% increasing on exhaust gas temperature for LHR engine compared to conventional engine at full engine load.

S B Patond; S A Chaple; P N Shrirao; P I Shaikh

2013-01-01T23:59:59.000Z

369

Optimization of a simplified sub-model for NO emission prediction by CFD in large 4-stroke marine diesel engines  

Science Journals Connector (OSTI)

A simplified sub-model for NO emission prediction at pressurized conditions has been put forth at bo Akademi University [7,9] including NO formation via the thermal NO path (3 reactions) and via the nitrous oxide intermediate paths (2+5 reactions). CFD simulations carried out with the sub-model for marine and off-road diesel engines showed, however, that it significantly by an order of magnitude over-predicted NO emission as compared to measurements. The objective of this work was to find the reasons to the discrepancy and to suggest and incorporate improvements. By detailed investigations, a number of programming technical errors and chemical kinetic shortcomings were identified. The improved sub-model and its sub-parts were then tested for CFD simulation of a medium-speed, four-stroke, direct-injection marine diesel engine for different loads and fuels. The importance of NO reduction by soot and hydrocarbons was also investigated. All the sub-models correctly predicted the trend of increasing NO emission with increasing load. In absolute amounts, NO emission was over-predicted by a factor of 2 to 4, if no fitting of rate constants was allowed. Including NO reduction by soot and hydrocarbons, decreased NO emission by ca 425% for the cases studied.

Pia Kilpinen

2010-01-01T23:59:59.000Z

370

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

E-Print Network [OSTI]

Torque Performance Curve. ...............35 Figure 9: Torque versus engine speed for conventional diesel fuel for 20%, 60%, and 75% loads....................................................................................36 Figure 10: Cycle fuel flow... versus engine speed for conventional diesel fuel for 20%, 60%, and 75% loads...........................................................................38 Figure 11: BSFC versus engine speed for conventional diesel fuel for 20%, 60%, and 75% load...

Esquivel, Jason

2010-01-16T23:59:59.000Z

371

Filtering diesel exhaust gases with ceramic filters  

Science Journals Connector (OSTI)

Results are given from three test series on a ceramic filter for diesel exhausts. In the first and second series, use was made of diesel fuel (in the summer), while in...

A. Yu. Valdberg; A. N. Tsedilin; T. O. Kosogorova

2008-03-01T23:59:59.000Z

372

Best practices for underground diesel emissions  

SciTech Connect (OSTI)

The US NIOSH and the Coal Diesel Partnership recommend practices for successfully using ceramic filters to control particulate emitted from diesel-powered equipment used in underground coal mines. 3 tabs.

Patts, L.; Brnich, M. Jr. [NIOSH Pittsburgh Research Laboratory, Pittsburgh, PA (United States)

2007-08-15T23:59:59.000Z

373

Mortality among personnel exposed to diesel exhaust  

Science Journals Connector (OSTI)

Some epidemiological studies have suggested a carcinogenic effect from diesel exhausts and also an increased risk of cardiovascular ... undertaken to elucidate further the health effects of diesel exhaust exposur...

Christer Edling; Carl-Gran Anjou

1987-09-01T23:59:59.000Z

374

Advanced Technology Light Duty Diesel Aftertreatment System ...  

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

Approach to Low Temperature NOx Emission Abatement Cummins' Next Generation Tier 2, Bin 2 Light Truck Diesel Engine ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine...

375

Development and Applications of Catalyzed Diesel Particulate...  

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

of Sd-Chemie c-DPF For BUG Emission Reduction * Test Cycle: ISO 8178 D2 Five Model * Diesel Engine: Cat 3406C, 350KW, 14liter, 1800rpm * Test Fuel: CARB 2 Diesel Fuel * 0...

376

Fuel Consumption Monitoring and Diesel Engines  

Science Journals Connector (OSTI)

In a perspective to explore how fuel monitoring and diesel engine life are interconnected, its necessary to ... touch several issues such as specifics of diesel engines in fuel consumption, the effects of precis...

Anna Antimiichuk

2014-09-01T23:59:59.000Z

377

THE FORTIETH ANNIVERSARY OF DIESEL POWER  

Science Journals Connector (OSTI)

...an internal combustion engine. His memory will be honored...York, is chairman of the Diesel com-mittee. Serving...Busch-Sulzer Brothers Diesel Engine Company. Colonel Robert...for the advancement of marine biology, not only by...

1936-11-27T23:59:59.000Z

378

Diesel prices top $4 per gallon  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices top 4 per gallon The U.S. average retail price for on-highway diesel fuel surpassed the four dollar mark for the first time this year. Prices rose to 4.02 a gallon...

379

Elastomer Compatibility Testing of Renewable Diesel Fuels  

SciTech Connect (OSTI)

In this study, the integrity and performance of six elastomers were tested with ethanol-diesel and biodiesel fuel blends.

Frame, E.; McCormick, R. L.

2005-11-01T23:59:59.000Z

380

Diesel Power: Clean Vehicles for Tomorrow  

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

Diesel Power: Diesel Power: Clean Vehicles for Tomorrow July 2010 VEHICLE TECHNOLOGIES PROGRAM Prepared for the U.S. Department of Energy Vehicle Technologies Program The diesel engine has changed significantly over the last quarter-century, in terms of technology and performance. For this reason, the U.S. Department of Energy (DOE) has created this series of documents about the history of the diesel engine, its current uses in transportation vehicles,

Note: This page contains sample records for the topic "direct injection diesel" 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

MotorWeek Video Transcript: BlueTec Clean Diesel and GM's Cylinder Cut-off  

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

BlueTec Clean Diesel and GM's Cylinder Cut-off BlueTec Clean Diesel and GM's Cylinder Cut-off Jessica Shea Choksey:Mercedes-Benz has over 80 years of diesel experience. So it's no surprise they are on the cutting edge of making them environmentally friendly. The full-size seven-passenger 2007 Mercedes-Benz GL320 BlueTec is the cleanest diesel sport-utility vehicle in the world. Named after the color of the emission reducing urea fluid injected into the catalyst system, BlueTec is the technology that can ultimately make clean diesels the obvious choice for Americans. Using Mercedes latest 3.2 liter Turbo diesel V-6, the GL320 will also be the most efficient big SUV with an anticipated highway fuel economy of over 25 miles per gallon. The GL BlueTec goes on sale in January. Also making fuel-saving automotive news is General Motors. As part of

382

Diesel Brewing | Open Energy Information  

Open Energy Info (EERE)

Diesel Brewing Diesel Brewing Jump to: navigation, search Name Diesel Brewing Place Salem, Oregon Zip 97302 Sector Biomass Product Oregon-based company that uses gasification to produce liquid fuels and electricity from non-food-based biomass sources, including wood wastes, agricultural residues, and manure. Coordinates 42.554485°, -88.110549° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.554485,"lon":-88.110549,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

383

Gasoline and Diesel Fuel Update  

Gasoline and Diesel Fuel Update (EIA)

Learn more... Learn more... Price trends and regional differences What causes fluctuations in motor gasoline prices? Retail gasoline prices are mainly affected by crude oil prices and the level of gasoline supply relative to demand. Strong and increasing demand for gasoline and other petroleum products in the United States and the rest of the world at times places intense pressure on available supplies. Even when crude oil prices are stable... read more in Gasoline Explained What causes fluctuations in diesel fuel oil prices? The retail price of a gallon of diesel fuel reflects the underlying costs and profits (or losses) of producing and delivering the product to customers. The price of diesel at the pump reflects the costs and profits of the entire production and distribution chain, including... read more in

384

Clean Coal Diesel Demonstration Project  

SciTech Connect (OSTI)

A Clean Coal Diesel project was undertaken to demonstrate a new Clean Coal Technology that offers technical, economic and environmental advantages over conventional power generating methods. This innovative technology (developed to the prototype stage in an earlier DOE project completed in 1992) enables utilization of pre-processed clean coal fuel in large-bore, medium-speed, diesel engines. The diesel engines are conventional modern engines in many respects, except they are specially fitted with hardened parts to be compatible with the traces of abrasive ash in the coal-slurry fuel. Industrial and Municipal power generating applications in the 10 to 100 megawatt size range are the target applications. There are hundreds of such reciprocating engine power-plants operating throughout the world today on natural gas and/or heavy fuel oil.

Robert Wilson

2006-10-31T23:59:59.000Z

385

Diesel exhaust treatment produces cyanide  

Science Journals Connector (OSTI)

Diesel exhaust treatment produces cyanide ... Studies at the Swiss Federal Technical Institute (ETH), Zurich, have produced results that, if confirmed by further research, could pose problems for the developers of catalytic converters that reduce emissions from diesel and leanburn gasoline engines. ... Use of low molecular weight olefins as reductants for selective removal of nitrogen oxides from exhaust gases, either by bleeding the olefins into the exhaust stream or blending them into the fuel itself, has attracted the interest of engine makers and regulatory agencies. ...

JOSEPH HAGGIN

1994-05-02T23:59:59.000Z

386

Biodiesel and Other Renewable Diesel Fuels  

SciTech Connect (OSTI)

Present federal tax incentives apply to certain types of biomass-derived diesel fuels, which in energy policy and tax laws are described either as renewable diesel or biodiesel. To understand the distinctions between these diesel types it is necessary to understand the technologies used to produce them and the properties of the resulting products. This fact sheet contains definitions of renewable and biodiesel and discusses the processes used to convert biomass to diesel fuel and the properties of biodiesel and renewable diesel fuels.

Not Available

2006-11-01T23:59:59.000Z

387

Shaping of fuel delivery characteristics for solenoid operated diesel engine gaseous injectors  

SciTech Connect (OSTI)

Solenoid operated gaseous injectors, when compared to conventional liquid fuel diesel injectors, differ in the way the fuel dose and its discharge rate are controlled. While in conventional diesel systems, the fuel dose and its injection rate depends on the fuel injection pump effective stroke and on the plunger diameter and velocity, the solenoid injectors operate in an on-off manner which limits the ability to control the gas discharge rate, resulting in its profile to be basically rectangular in shape. To reduce the gas injection rate at the beginning of the injection process in order to suppress the diesel-knock phenomenon, similar procedures as used in diesel engines could be implemented. One such approach is to use a throttling type pintle nozzle, and another method is to use a double-spring injector with a hole nozzle. The rationale for using such nozzle configurations is that gaseous fuels do not require atomization, and therefore, can be injected at lower discharge velocities than with liquid fuels. The gas delivery characteristics from a solenoid injector has been computer-simulated in order to assess the impact of the investigated three modes of fuel discharge rate control strategies. The simulation results confirmed that the gas dose and its discharge rate can be shaped as required. An experimental set-up is described to measure the gas discharge rate using a special gas injection mass flow rate indicator with a strain-gage sensor installed at the entry to a long tube, similar to that proposed by Bosch for liquid fuel volumetric flow rate measurements.

Hong, H.; Krepec, T.; Kekedjian, H.

1996-09-01T23:59:59.000Z

388

Air intake modelling with fuzzy AFR control of a turbocharged diesel engine  

Science Journals Connector (OSTI)

One of the most vital factors in combustion control is Air-to-Fuel Ratio (AFR) estimation and control. In this work a detailed mathematical, nonlinear and control oriented model of dynamic processes of turbocharged diesel engines is presented. This model has been developed using physical equations and also experimental data. Common Rail Injection (CRI) that is a flexible fuel injection system in which quantity, timing and pressure of injection are controllable separately is chosen for this purpose. AFR control is performed making use of fuzzy logic methodology with a fast fuzzy controller. All above-mentioned models are programmed in Matlab/Simulink software.

Amir H. Shamdani; Amir H. Shamekhi; M. Ziabasharhagh

2008-01-01T23:59:59.000Z

389

Precise instrumentation of a diesel single-cylinder research engine  

Science Journals Connector (OSTI)

The accuracy of any empirical result is a direct consequence of the quality of experimental setup and the strict control over testing conditions. For internal combustion engines, a large number of parameters that also exhibit complex interdependence may significantly affect the engine performance. Therefore, this work describes the essentials required to establish a high-quality diesel engine research laboratory. A single-cylinder diesel engine is taken as the fundamental building block and the requirements for all essential sub-systems including fuel, intake, exhaust, coolant and exhaust gas recirculation (EGR) are laid out. The measurement and analysis of cylinder pressure, and exhaust gas sampling/conditioning requirements for emission measurement are discussed in detail. The independent control of EGR and intake boost is also highlighted. The measurement and analysis techniques are supported with empirical data from a single-cylinder diesel engine setup. The emphasis is on providing the necessary guidelines for setting up a fully-instrumented diesel engine test laboratory.

Usman Asad; Raj Kumar; Xiaoye Han; Ming Zheng

2011-01-01T23:59:59.000Z

390

Federal Tax Credit for Diesels  

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

Nuevos Reembolsos de impuestos en Materia de Energía para Nuevos Reembolsos de impuestos en Materia de Energía para Diesels Vehículo Diesel ¡Reembolso Federal de hasta $3,400! Algúnos diesels comprados o puestos en servicio después del 31 de diciembre del 2005 pueden ser elegibles para un reembolso de impuestos sobre la renta federal de hasta 3,400 dólares. (Ningún vehículo elegible fue fabricado para la venta hasta el 2008.) Las cantidades del reembolso comienzan a disminuir progresivamente para los fabricantes que hayan vendido más de 60,000 vehículos híbridos y diesel elegibles. Los vehículos adquiridos después de Diciembre 31 no son elegibles para este crédito. Audi BMW Mercedes-Benz Volkswagen All Marca y Modelo del Vehículo Reembolso Completo Desfase Sin Reembolso 50% 25% Audi ene. 1, 2006 jul. 1 - dic. 31, 2010 No aplica ene. 1, 2011

391

Coal-fired diesel generator  

SciTech Connect (OSTI)

The objective of the proposed project is to test the technical, environmental, and economic viability of a coal-fired diesel generator for producing electric power in small power generating markets. Coal for the diesel generator would be provided from existing supplies transported for use in the University`s power plant. A cleanup system would be installed for limiting gaseous and particulate emissions. Electricity and steam produced by the diesel generator would be used to supply the needs of the University. The proposed diesel generator and supporting facilities would occupy approximately 2 acres of land adjacent to existing coal- and oil-fired power plant and research laboratory buildings at the University of Alaska, Fairbanks. The environmental analysis identified that the most notable changes to result from the proposed project would occur in the following areas: power plant configuration at the University of Alaska, Fairbanks; air emissions, water use and discharge, and the quantity of solid waste for disposal; noise levels at the power plant site; and transportation of coal to the power plant. No substantive adverse impacts or environmental concerns were identified in analyzing the effects of these changes.

NONE

1997-05-01T23:59:59.000Z

392

1999 2000 2001 2002 2003 2004... 2005 2006 gasoline diesel  

E-Print Network [OSTI]

1999 2000 2001 2002 2003 2004... 2005 2006 gasoline diesel price +10% gasolinegasoline gasoline diesel... ... 2007 20081998 2009 ...2010 home work home work diesel diesel ... gasoline diesel price -7, households' decisions are affected by various other factors, from the vehicle market offer to governmental

Bierlaire, Michel

393

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

SciTech Connect (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

394

Combustion system development of a two-stroke, spark-assisted DI diesel engine  

SciTech Connect (OSTI)

A loop-scavenged, two-stroke, spark-assisted DI diesel engine was developed by modifying an outboard marine gasoline engine to operate on diesel fuel with high fuel efficiency similar to a diesel engine, yet retain the two-stroke engine advantages of low cost, light weight, and high power-to-weight ratio. Engine modification was concentrated in the area of the combustion system, including transfer port design to generate air swirl in the cylinder, and combustion chamber design to generate air squish and turbulence. Bore and stroke (84 x 72 mm) remained the same as those of the base engine. The experimental engine used the production engine's piston, crankshaft, connecting rod, bearings, and cylinder block. The transfer port design was optimized using a flow test bench for best swirl and air flow pattern with a simple flow visualization technique. The best combustion chamber geometry, compression ratio, and fuel injection spray pattern were determined through engine experiments.

Ariga, S.; Matsushita, Y.

1988-01-01T23:59:59.000Z

395

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

E-Print Network [OSTI]

EMISSIONS COMPARISON BETWEEN PETROLEUM DIESEL AND BIODIESEL IN A MEDIUM-DUTY DIESEL ENGINE A Thesis by BRANDON T. TOMPKINS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2008 Major Subject: Mechanical Engineering EMISSIONS COMPARISON BETWEEN PETROLEUM DIESEL AND BIODIESEL IN A MEDIUM-DUTY DIESEL ENGINE A Thesis by BRANDON T...

Tompkins, Brandon T.

2009-05-15T23:59:59.000Z

396

REVIEW OF DIESEL PARTICULATE MATTER SAMPLING METHODS Supplemental Report # 2  

E-Print Network [OSTI]

Arnold University of Minnesota Department of Mechanical Engineering Center for Diesel Research aerosol. This report focuses on the fundamental chemical and physical processes that affect diesel aerosolREVIEW OF DIESEL PARTICULATE MATTER SAMPLING METHODS Supplemental Report # 2 AEROSOL DYMAMICS

Minnesota, University of

397

Edinburgh Research Explorer Pulmonary diesel particulate increases susceptibility to  

E-Print Network [OSTI]

Edinburgh Research Explorer Pulmonary diesel particulate increases susceptibility to myocardial, MR & Gray, GA 2014, 'Pulmonary diesel particulate increases susceptibility to myocardial ischemia. Pulmonary diesel particulate increases susceptibility to myocardial ischemia/reperfusion injury via

Millar, Andrew J.

398

A Comparison of Combustion and Emissions of Diesel Fuels and...  

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

A Comparison of Combustion and Emissions of Diesel Fuels and Oxygenated Fuels in a Modern DI Diesel Engine A Comparison of Combustion and Emissions of Diesel Fuels and Oxygenated...

399

The California Demonstration Program for Control of PM from Diesel...  

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

of PM from Diesel Backup Generators Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab Emissions from In-Use NG, Propane, and Diesel Fueled Heavy Duty Vehicles...

400

2003 Diesel Engine Emissions Reduction (DEER) Conference Presentations...  

Energy Savers [EERE]

5: Diesel and CNG Bus Emissions Update on Diesel Exhaust Emission Control Timothy Johnson Corning, Inc. (PDF 1.53 MB) Summary of Swedish Experiences on CNG and "Clean" Diesel...

Note: This page contains sample records for the topic "direct injection diesel" 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

Response of Oil Sands Derived Fuels in Diesel HCCI Operation...  

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

Response of Oil Sands Derived Fuels in Diesel HCCI Operation Response of Oil Sands Derived Fuels in Diesel HCCI Operation Presentation given at the 2007 Diesel Engine-Efficiency &...

402

Nox reduction system utilizing pulsed hydrocarbon injection  

DOE Patents [OSTI]

Hydrocarbon co-reductants, such as diesel fuel, are added by pulsed injection to internal combustion engine exhaust to reduce exhaust NO.sub.x to N.sub.2 in the presence of a catalyst. Exhaust NO.sub.x reduction of at least 50% in the emissions is achieved with the addition of less than 5% fuel as a source of the hydrocarbon co-reductants. By means of pulsing the hydrocarbon flow, the amount of pulsed hydrocarbon vapor (itself a pollutant) can be minimized relative to the amount of NO.sub.x species removed.

Brusasco, Raymond M. (Livermore, CA); Penetrante, Bernardino M. (San Ramon, CA); Vogtlin, George E. (Fremont, CA); Merritt, Bernard T. (Livermore, CA)

2001-01-01T23:59:59.000Z

403

Gasoline and Diesel Fuel Update  

Gasoline and Diesel Fuel Update (EIA)

Sampling Methodology Sampling Methodology The sample design for the weekly diesel price survey was a two-phase design. The first phase constituted construction of a frame of 2,207 company-State units (CSUs) from the combination of two sample cycles of the EIA-782A and EIA-782B surveys that collected monthly petroleum products' sales at the State level. For sampling purposes, any combination of State and company where diesel was sold through retail outlets as reported on the EIA-782 surveys defined a CSU, the sampling unit. For the second phase, a sub-sample of the 2,207 CSUs from phase 1 was selected using probability proportional to size (PPS). The measure of size for each of the two sample cycles separately was normalized using the annual State sales' volumes from the monthly survey divided by the unit's

404

Gasoline and Diesel Fuel Update  

Gasoline and Diesel Fuel Update (EIA)

Sampling Methodology Sampling Methodology The respondents reporting to the weekly diesel price survey represent a stratified probability proportional to size (PPS) sample selected from a frame list of retail outlets. The outlet sampling frame was constructed using commercially available lists from several sources in order to provide comprehensive coverage of truck stops and service stations that sell on-highway diesel fuel in the United States. The frame includes about 62,000 service stations and 4,000 truck stops. Due to statistical and operational considerations, outlets in the States of Alaska and Hawaii are excluded from the target population. The primary publication cells of the survey include Petroleum Administration for Defense Districts (PADDs) 2-4, three sub-PADDs within

405

Diesel pollution. (Latest citations from Pollution abstracts). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning pollution from diesel systems. Articles are included for automotive systems, large scale diesel generators, marine diesel engines, and other applications of diesel fuels. Citations examine the toxic and environmental effects of diesel fuels and diesel exhaust emissions from combustion sources. Pollution control measures from a fuel and post-combustion aspect are also considered. (Contains a minimum of 194 citations and includes a subject term index and title list.)

Not Available

1993-11-01T23:59:59.000Z

406

Diesel pollution. (Latest citations from Pollution Abstracts). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning pollution from diesel systems. Articles are included for automotive systems, large scale diesel generators, marine diesel engines, and other applications of diesel fuels. Citations examine the toxic and environmental effects of diesel fuels and diesel exhaust emissions from combustion sources. Pollution control measures from a fuel and post-combustion aspect are also considered. (Contains a minimum of 176 citations and includes a subject term index and title list.)

Not Available

1993-03-01T23:59:59.000Z

407

Diesel pollution. (Latest citations from Pollution abstracts). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning pollution from diesel systems. Articles are included for automotive systems, large scale diesel generators, marine diesel engines, and other applications of diesel fuels. Citations examine the toxic and environmental effects of diesel fuels and diesel exhaust emissions from combustion sources. Pollution control measures from a fuel and post-combustion aspect are also considered.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1996-12-01T23:59:59.000Z

408

Diesel pollution. (Latest citations from Pollution abstracts). NewSearch  

SciTech Connect (OSTI)

The bibliography contains citations concerning pollution from diesel systems. Articles are included for automotive systems, large scale diesel generators, marine diesel engines, and other applications of diesel fuels. Citations examine the toxic and environmental effects of diesel fuels and diesel exhaust emissions from combustion sources. Pollution control measures from a fuel and post-combustion aspect are also considered. (Contains a minimum of 217 citations and includes a subject term index and title list.)

Not Available

1994-10-01T23:59:59.000Z

409

Optimizing the design of a hydrogen engine with pilot diesel fuel ignition  

Science Journals Connector (OSTI)

A diesel engine was converted to dual-fuel hydrogen operation, ignition being started by a 'pilot' quantity of diesel fuel but with 65 to 90% of the energy being supplied as hydrogen. With later injection timing, use of delayed port admission of the gas, and a modified combustion chamber, thermal efficiencies were achieved nearly 15% greater than those for diesel as the sole fuel. A 'solid' water injection technique was used to curb knock under full load conditions when the power output equalled or exceeded that of a similar diesel engine. The indicator diagrams under these conditions closely approach those of the Otto cycle. The development was assisted by computer simulation using a novel self-ignition and flame propagation model. The very fast burning rates obtained with stoichiometric hydrogen-air mixtures show combustion to occur within 5 degrees of crank rotation yet Otto cycle thermal efficiency was not achieved. However, greenhouse gases are shown to be reduced by more than 80%, nitrogen oxides by up to 70%, and exhaust smoke by nearly 80%.

S.M. Lambe; H.C. Watson

1993-01-01T23:59:59.000Z

410

Indiana: Improving Diesel Engine Performance for Trucks  

Office of Energy Efficiency and Renewable Energy (EERE)

Cummins, the world's largest diesel engine manufacturer, received funds from EERE to research advanced engine technology for heavy-duty and light-duty vehicles.

411

Particle Sensor for Diesel Combustion Monitoring | Department...  

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

Particulate Matter Sensor for HCCI and Conventional Diesel Engines High-Energy, Pulsed-Laser Diagnostics for Real-Time Measurements of Reciprocating Engine PM Emissions...

412

Diesel Engine Alternatives | Department of Energy  

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

Alternatives Diesel Engine Alternatives 2003 DEER Conference Presentation: Southwest Research Institute 2003deerryan.pdf More Documents & Publications Combustion Targets for Low...

413

Photoacoustic insights on diesel exhaust particles  

Science Journals Connector (OSTI)

Photoacoustic measurements at General Motors Research Laboratories on diesel exhaust particulate emissions are reviewed. Conventional optical techniques provide real-time qualitative...

Roessler, David M

1984-01-01T23:59:59.000Z

414

Sources of Naphthalene in Diesel Exhaust Emissions  

Science Journals Connector (OSTI)

The sale of diesels now account for 20% of new car sales in the UK compared with just 6% in 1990.1 The increased popularity of diesel cars is in part owing to improved engine performance in terms of power output, greater fuel economy, and an improved public image in terms of noise and pollution levels. ... Diesel engines have greater emissions of particulate material than corresponding spark ignition (SI) engines. ... An understanding of the origin of PAH in diesel exhaust emissions is fundamental if adequate control of the emission of these compounds is to be achieved. ...

M. M. Rhead; R. D. Pemberton

1996-05-21T23:59:59.000Z

415

Diesel Engine Emission Reduction (DEER) Experiment | Department...  

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

Emission Reduction (DEER) Experiment Diesel Engine Emission Reduction (DEER) Experiment Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the...

416

Diesel Use in California | Department of Energy  

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

Use in California Diesel Use in California 2002 DEER Conference Presentation: California Energy Commission 2002deerboyd.pdf More Documents & Publications Reducing Petroleum...

417

Review of Diesel Emission Control Technology  

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

Diesel Emission Control Technology Tim Johnson August 2002 2 Outline * Introduction - Regulatory update and technology approaches * Ultrafines * Filters * NOx - LNC - SCR - LNT *...

418

CLEERS Activities: Diesel Soot Filter Characterization & NOx...  

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

Control Fundamentals CLEERS Activities: Diesel Soot Filter Characterization & NOx Control Fundamentals 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit...

419

Diesel Technology - Challenges & Opportunities for North America...  

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

Technology - Challenges & Opportunities for North America Diesel Technology - Challenges & Opportunities for North America Presentation given at DEER 2006, August 20-24, 2006,...

420

Chemical Kinetic Research on HCCI & Diesel Fuels  

Energy Savers [EERE]

fuel * a primary reference fuel for diesel * Include both high and low temperature chemistry important to model low temperature combustion modes Improve component models for...

Note: This page contains sample records for the topic "direct injection diesel" 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

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

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

422

Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel...  

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

and Emissions Optimization of Heavy-Duty Diesel Engines using Model-Based Transient Calibration Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel Engines using...

423

Thermodynamic Systems for Tier 2 Bin 2 Diesel Engines | Department...  

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

Systems for Tier 2 Bin 2 Diesel Engines Thermodynamic Systems for Tier 2 Bin 2 Diesel Engines Discusses engine technology enablers that help achieve overall system integration...

424

Complete Fuel Combustion for Diesel Engines Resulting in Greatly...  

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

Complete Fuel Combustion for Diesel Engines Resulting in Greatly Reduced Emissions and Improved Fuel Efficiency Complete Fuel Combustion for Diesel Engines Resulting in Greatly...

425

Advanced High Efficiency Clean Diesel Combustion with Low Cost...  

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

Efficiency Clean Diesel Combustion with Low Cost for Hybrid Engines Advanced High Efficiency Clean Diesel Combustion with Low Cost for Hybrid Engines Clean, in-cylinder combustion...

426

Advanced Petroleum-Based fuels - Diesel Emissions Control (APBF...  

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

Petroleum-Based fuels - Diesel Emissions Control (APBF-DEC) Activity Advanced Petroleum-Based fuels - Diesel Emissions Control (APBF-DEC) Activity 2003 DEER Conference...

427

Low-Temperature Diesel Combustion Cross-Cut Research | Department...  

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

Low-Temperature Diesel Combustion A Conceptual Model for Partially PremixedLow-Temperature Diesel Combustion Based onIn-Cylinder Laser Diagnostics and Chemical Kinetics Modeling...

428

Development of SCR on Diesel Particulate Filter System for Heavy...  

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

SCR on Diesel Particulate Filter System for Heavy Duty Applications Development of SCR on Diesel Particulate Filter System for Heavy Duty Applications Evaluation of a system...

429

Simplification of Diesel Emission Control System Packaging Using...  

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

Simplification of Diesel Emission Control System Packaging Using SCR Coated on DPF Simplification of Diesel Emission Control System Packaging Using SCR Coated on DPF Study...

430

Technology Development for High Efficiency Clean Diesel Engines...  

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

Technology Development for High Efficiency Clean Diesel Engines and a Pathway to 50% Thermal Efficiency Technology Development for High Efficiency Clean Diesel Engines and a...

431

Cummins/DOE Light Truck Diesel Engine Progress Report | Department...  

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

Diesel Engine Progress Report CumminsDOE Light Truck Diesel Engine Progress Report 2002 DEER Conference Presentation: Cummins 2002deerstang.pdf More Documents & Publications...

432

Mixed-mode diesel HCCI with External Mixture Formation: Preliminary...  

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

Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results 2003 DEER Conference...

433

Expanded Capacity Microwave-Cleaned Diesel Particulate Filter...  

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

Expanded Capacity Microwave-Cleaned Diesel Particulate Filter Expanded Capacity Microwave-Cleaned Diesel Particulate Filter 2002 DEER Conference Presentation: Industrial Ceramic...

434

Low-Temperature Diesel Combustion Cross-Cut Research | Department...  

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

Low-Temperature Diesel Combustion Cross-Cut Research Low-Temperature Diesel Combustion Cross-Cut Research 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review...

435

Mutagenicity of Diesel Exhaust Soot Dispersed in Phospholipid Surfactants  

Science Journals Connector (OSTI)

Organics extractable from respirable diesel exhaust soot particles by organic solvents have been ... a pulmonary alveolus or respiratory bronchiole, respirable diesel soot particles will contact first the hypopha...

W. Wallace; M. Keane; S. Xing; J. Harrison; M. Gautam; T. Ong

1990-01-01T23:59:59.000Z

436

The Effect of Changes in Diesel Exhaust Composition and After...  

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

The Effect of Changes in Diesel Exhaust Composition and After-Treatment Technology on Lung Inflammation and Resistance to Viral Infection The Effect of Changes in Diesel Exhaust...

437

A New CFD Model for understanding and Managing Diesel Particulate...  

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

& Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Diesel Particulate Filter: A Success for Faurecia Exhaust Systems Vehicle Evaluation of...

438

Progress on DOE Vehicle Technologies Light-Duty Diesel Engine...  

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

DOE Vehicle Technologies Light-Duty Diesel Engine Efficiency and Emissions Milestones Progress on DOE Vehicle Technologies Light-Duty Diesel Engine Efficiency and Emissions...

439

Modeling of Diesel Exhaust Systems: A methodology to better simulate...  

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

of Diesel Exhaust Systems: A methodology to better simulate soot reactivity Modeling of Diesel Exhaust Systems: A methodology to better simulate soot reactivity Discussed...

440

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

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

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

Note: This page contains sample records for the topic "direct injection diesel" 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

Impact of Real Field Diesel Quality Variability on Engine Emissions...  

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

Real Field Diesel Quality Variability on Engine Emissions and Fuel Consumption Solutions for Onboard Optimisation Impact of Real Field Diesel Quality Variability on Engine...

442

Local Soot Loading Distribution in Cordierite Diesel Particulate...  

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

Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by...

443

The California Demonstration Program for Control of PM from Diesel...  

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

Backup Generators (BUGs) CARB Verification of Catalyzed Diesel Particulate Filters for Emergency Generator Sets Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab...

444

Dumping Dirty Diesels: The View From the Bridge | Department...  

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

Reduction (DEER) Conference Presentations and Posters 2005deerkassel.pdf More Documents & Publications EPA Diesel Update EPA Mobile Source Rule Update Cleaning Up Diesel Engines...

445

Onboard Plasmatron Generation of Hydrogen rich Gas for Diesel...  

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

Technology, Dr. S. Diamond ** Plasma Science and Fusion Center, MIT ***Sloan Automobile Laboratory, MIT Diesel Plasmatron Reformers * Enhanced conversion of diesel fuel...

446

Modeling Combustion Control for High Power Diesel Mode Switching  

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

and Emissions Research Conference 2010 Modeling Combustion Control for High Power Diesel Mode Switching P-20 Motivation * High power LTC-diesel mode operation * Transient...

447

Opportunity Assessment Clean Diesels in the North American Light...  

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

Opportunity Assessment Clean Diesels in the North American Light Duty Market Opportunity Assessment Clean Diesels in the North American Light Duty Market Presentation given at the...

448

Advanced Diesel Engine Technology Development for HECC | Department...  

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

Diesel Engine Technology Development for HECC Advanced Diesel Engine Technology Development for HECC 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and...

449

A Standard Soot Generator for Diesel Particulate Filter Testing  

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

CAMBUSTION A Standard Soot Generator for Diesel Particulate Filter Testing Poster - P10 Diesel Engine Emission Reduction Conference 2007 Chris Nickolaus ...

450

Heavy Duty Diesel Engine Exhaust Aerosol Particle and Ion Measurements  

Science Journals Connector (OSTI)

Heavy Duty Diesel Engine Exhaust Aerosol Particle and Ion Measurements ... diesel engines have received increasing attention due to their potential health effects. ...

Tero Lhde; Topi Rnkk; Annele Virtanen; Tanja J. Schuck; Liisa Pirjola; Kaarle Hmeri; Markku Kulmala; Frank Arnold; Dieter Rothe; Jorma Keskinen

2008-12-09T23:59:59.000Z

451

Low-Temperature Automotive Diesel Combustion | Department of...  

Office of Environmental Management (EM)

in Low Temperature Automotive Diesel Combustion Systems Mixture Formation in a Light-Duty Diesel Engine Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments...

452

A Correlation of Diesel Engine Performance with Measured NIR...  

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

A Correlation of Diesel Engine Performance with Measured NIR Fuel Characteristics A Correlation of Diesel Engine Performance with Measured NIR Fuel Characteristics Results indicate...

453

Durability of Diesel Engine Particulate Filters (Agreement ID...  

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

Durability of Diesel Engine Particulate Filters (Agreement ID:10461) Durability of Diesel Engine Particulate Filters (Agreement ID:10461) 2013 DOE Hydrogen and Fuel Cells Program...

454

Update on Modeling for Effective Diesel Engine Aftertreatment...  

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

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

455

Advances in Diesel Engine Technologies for European Passenger...  

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

Advances in Diesel Engine Technologies for European Passenger Vehicles Advances in Diesel Engine Technologies for European Passenger Vehicles 2002 DEER Conference Presentation:...

456

Light Duty Diesels in the United States - Some Perspectives ...  

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

2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005deerjohnson.pdf More Documents & Publications Update on Diesel Exhaust Emission...

457

Ricardo's ACTION Strategy: An Enabling Light Duty Diesel Technology...  

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

US Market 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005deergreaney.pdf More Documents & Publications Light-Duty Diesel...

458

Oxygen-Enriched Combustion for Military Diesel Engine Generators...  

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

Combustion for Military Diesel Engine Generators Oxygen-Enriched Combustion for Military Diesel Engine Generators Substantial increases in brake power and considerably lower peak...

459

The California Demonstration Program for Control of PM from Diesel...  

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

Environmental Research and Technology EPA's AP-42 Emission Factors - Small Diesel SMALL DIESEL (< 600 hp) Emission Factor Emission Factor Emission Factor Emission (lbhp-hr) (g...

460

Microwave Regenerated DPF for Auxiliary Power Units and Diesel...  

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

Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles Microwave regeneration...

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


461

Optimization of an Advanced Passive/Active Diesel Emission Control...  

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

an Advanced PassiveActive Diesel Emission Control System Optimization of an Advanced PassiveActive Diesel Emission Control System Evaluation of PM exhaust aftertreatment...

462

Low Temperature Combustion and Diesel Emission Reduction Research...  

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

Low Temperature Combustion and Diesel Emission Reduction Research Low Temperature Combustion and Diesel Emission Reduction Research Presentation given at DEER 2006, August 20-24,...

463

Light Duty Diesels in the United States - Some Perspectives ...  

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

Emission Control Technology Review Update on Diesel Exhaust Emission Control Technology and Regulations Light Duty Diesels in the United States - Some Perspectives...

464

Recent Diesel Engine Emission Mitigation Activities of the Maritime...  

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

Diesel Engine Emission Mitigation Activities of the Maritime Administration Energy Technologies Program Recent Diesel Engine Emission Mitigation Activities of the Maritime...

465

Effects of Diesel Exhaust Emissions on Soot Oxidation and DPF...  

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

Diesel Exhaust Emissions on Soot Oxidation and DPF Regeneration Effects of Diesel Exhaust Emissions on Soot Oxidation and DPF Regeneration DPF regeneration experiments verified the...

466

Dilute Clean Diesel Combustion Achieves Low Emissions and High...  

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

Dilute Clean Diesel Combustion Achieves Low Emissions and High Efficiency While Avoiding Control Problems of HCCI Dilute Clean Diesel Combustion Achieves Low Emissions and High...

467

Measurement of diesel solid nanoparticle emissions using a catalytic...  

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

diesel solid nanoparticle emissions using a catalytic stripper for comparison with Europe's PMP protocol Measurement of diesel solid nanoparticle emissions using a catalytic...

468

Improvement and Simplification of Diesel Particulate Filter System...  

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

and Simplification of Diesel Particulate Filter System using a Ceria-Based Fuel-Borne Catalyst in Serial Applications Improvement and Simplification of Diesel Particulate Filter...

469

Chassis Dynamometer Testing of Parallel and Series Diesel Hybrid Buses  

Broader source: Energy.gov [DOE]

Emissions and fuel economy data were studied from tests on four diesel and diesel hybrid transit buses using the Houston Metro Bus Cycle.

470

Low-Temperature Automotive Diesel Combustion | Department of...  

Energy Savers [EERE]

Diesel Combustion Low-Temperature Automotive Diesel Combustion 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

471

Design Case Summary: Production of Gasoline and Diesel from Biomass...  

Energy Savers [EERE]

Design Case Summary: Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating, and Hydrocracking Design Case Summary: Production of Gasoline and Diesel from...

472

Production of Gasoline and Diesel from Biomass via Fast Pyrolysis...  

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

Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating and Hydrocracking: A Design Case Production of Gasoline and Diesel from Biomass via Fast Pyrolysis,...

473

Fuel Additivies for Improved Performance of Diesel Aftertreatment...  

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

Additivies for Improved Performance of Diesel Aftertreatment Systems Fuel Additivies for Improved Performance of Diesel Aftertreatment Systems 2002 DEER Conference Presentation:...

474

12TH DIESEL ENGINE-EFFICIENCY AND EMISSIONS RESEARCH CONFERENCE...  

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

2TH DIESEL ENGINE-EFFICIENCY AND EMISSIONS RESEARCH CONFERENCE (DEER 2006) PRESENTATIONS 12TH DIESEL ENGINE-EFFICIENCY AND EMISSIONS RESEARCH CONFERENCE (DEER 2006) PRESENTATIONS...

475

Chassis Dynamometer Testing of Parallel and Series Diesel Hybrid...  

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

Chassis Dynamometer Testing of Parallel and Series Diesel Hybrid Buses Chassis Dynamometer Testing of Parallel and Series Diesel Hybrid Buses Emissions and fuel economy data were...

476

Real-Time Measurement of Diesel Trap Efficiency | Department...  

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

Update on 2007 Diesel Particulate Measurement Research 2007 Diesel Particulate Measurement Research (E-66 Project) Evaluation of the European PMP Methodologies Using...

477

Assessment of Health Hazards of Repeated Inhalation of Diesel...  

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

Health Hazards of Repeated Inhalation of Diesel Emissions, with Comparisons to Other Source Emissions Assessment of Health Hazards of Repeated Inhalation of Diesel Emissions, with...

478

Biodiesel Effects on Diesel Particle Filter Performance: Milestone Report  

SciTech Connect (OSTI)

Research results on the performance of biodiesel and biodiesel blends with ultra-low sulfur diesel (ULSD) and a diesel particle filter (DPF).

Williams, A.; McCormick, R. L.; Hayes, R.; Ireland, J.

2006-03-01T23:59:59.000Z

479

Update on Diesel Exhaust Emission Control Technology and Regulations  

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

Control Technology and Regulations Tim Johnson August 2004 2 Diesel emission control technology is making significant progress * Diesel regulations are getting tighter in all...

480

Diesel Emission Control in Review | Department of Energy  

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

of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). deer07johnson.pdf More Documents & Publications Update on Diesel Exhaust Emission Control Diesel...

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


481

Clean Diesel: The Progress, The Message, The Opportunity  

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

and are selling... and here's what people here's what people are saying are saying Image, Story Courtesy of Diesel Progress Washington Policymakers Have Seen the New Diesel...

482

Hydrogen Assisted Diesel Combustion in a Common Rail Turbodiesel...  

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

Assisted Diesel Combustion in a Common Rail Turbodiesel Engine P-3 Hydrogen Assisted Diesel Combustion in a Common Rail Turbodiesel Engine P-3 Gregory Lilik, Jos Martn...

483

Hydrogen Assisted Diesel Combustion in a Common Rail Turbodiesel...  

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

Assisted Diesel Combustion in a Common Rail Turbodiesel Engine Hydrogen Assisted Diesel Combustion in a Common Rail Turbodiesel Engine This study measured the effects of hydrogen...

484

Application of Synthetic Diesel Fuels | Department of Energy  

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

The Potential of GTL Diesel to Meet Future Exhaust Emission Limits Performance Characteristics of Coal-to-Liquids (CTL) Diesel in a 50-State Emissions Compliant Passenger Car...

485

Effects of an Accelerated Diesel Engine Replacement/Retrofit Program  

E-Print Network [OSTI]

No. 894 Effects of an Accelerated Diesel Engine Replacement/2009 Effects of an Accelerated Diesel Engine Replacement/reductions occurring on an accelerated schedule compared to

Millstein, Dev E.; Harley, Robert A

2009-01-01T23:59:59.000Z

486

Performance Characteristics of Coal-to-Liquids (CTL) Diesel in...  

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

Performance Characteristics of Coal-to-Liquids (CTL) Diesel in a 50-State Emissions Compliant Passenger Car Performance Characteristics of Coal-to-Liquids (CTL) Diesel in a...

487

Optical Diagnostics and Modeling Tools Applied to Diesel HCCI...  

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

Optical Diagnostics and Modeling Tools Applied to Diesel HCCI Optical Diagnostics and Modeling Tools Applied to Diesel HCCI 2002 DEER Conference Presentation: Caterpillar Engine...

488

Load Expansion with Diesel/Gasoline RCCI for Improved Engine...  

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

with DieselGasoline RCCI for Improved Engine Efficiency and Emissions Load Expansion with DieselGasoline RCCI for Improved Engine Efficiency and Emissions This poster will...

489

In Vitro Genotoxicity of Gasoline and Diesel Engine Vehicle Exhaust...  

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

Gasoline and Diesel Engine Vehicle Exhaust Particulate and Semi-Volatile Organic Compound Materials In Vitro Genotoxicity of Gasoline and Diesel Engine Vehicle Exhaust Particulate...

490

Light-Duty Diesel Combustion | Department of Energy  

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

Light-Duty Diesel Combustion Light-Duty Diesel Combustion 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting...

491

The Impact of Oil Consumption Mechanisms on Diesel Exhaust Particle...  

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

Oil Consumption Mechanisms on Diesel Exhaust Particle Size Distributions and Detailed Exhaust Chemical Composition The Impact of Oil Consumption Mechanisms on Diesel Exhaust...

492

Diesel Engine Oil Technology Insights and Opportunities | Department...  

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

Oil Technology Insights and Opportunities Diesel Engine Oil Technology Insights and Opportunities Perrformance of API CJ-4 diesel engine lubricating oil and emerging lubricant...

493

Hydrogen generation from plasmatron reformers and use for diesel...  

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

generation from plasmatron reformers and use for diesel exhaust aftertreatment Hydrogen generation from plasmatron reformers and use for diesel exhaust aftertreatment 2003 DEER...

494

Onboard Plasmatron Generation of Hydrogen rich Gas for Diesel...  

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

Onboard Plasmatron Generation of Hydrogen rich Gas for Diesel Aftertreatment and Other Applications Onboard Plasmatron Generation of Hydrogen rich Gas for Diesel Aftertreatment and...

495

Comparing The Environmental Impacts Of Diesel Generated Electricity With Hybrid Diesel-Wind Electricity For Off Grid First Nation Communities In Ontario : Incorporating A Life Cycle Approach.  

E-Print Network [OSTI]

??The cost of diesel is rapidly increasing and the environmental impacts associated with diesel fuel combustion are substantial. Hybrid diesel-wind energy was found to be (more)

Schofield, Jade

2011-01-01T23:59:59.000Z

496

Acoustic measurements for the combustion diagnosis of diesel engines fuelled with biodiesels  

Science Journals Connector (OSTI)

In this paper, an experimental investigation was carried out on the combustion process of a compression ignition (CI) engine running with biodiesel blends under steady state operating conditions. The effects of biodiesel on the combustion process and engine dynamics were analysed for non-intrusive combustion diagnosis based on a four-cylinder, four-stroke, direct injection and turbocharged diesel engine. The signals of vibration, acoustic and in-cylinder pressure were measured simultaneously to find their inter-connection for diagnostic feature extraction. It was found that the sound energy level increases with the increase of engine load and speed, and the sound characteristics are closely correlated with the variation of in-cylinder pressure and combustion process. The continuous wavelet transform (CWT) was employed to analyse the non-stationary nature of engine noise in a higher frequency range. Before the wavelet analysis, time synchronous average (TSA) was used to enhance the signal-to-noise ratio (SNR) of the acoustic signal by suppressing the components which are asynchronous. Based on the root mean square (RMS) values of CWT coefficients, the effects of biodiesel fractions and operating conditions (speed and load) on combustion process and engine dynamics were investigated. The result leads to the potential of airborne acoustic measurements and analysis for engine condition monitoring and fuel quality evaluation.

Dong Zhen; Tie Wang; Fengshou Gu; Belachew Tesfa; Andrew Ball

2013-01-01T23:59:59.000Z

497

Coal-water-slurry autoignition in a high-speed Detroit diesel engine  

SciTech Connect (OSTI)

Autoignition of coal-water-slurry (CWS) fuel in a two-stroke engine operating at 1900 RPM has been achieved. A Pump-Line-Nozzle (PLN) injection system, delivering 400mm{sup 3} injection of CWS, was installed in one modified cylinder of a Detroit Diesel Corporation (DDC) 8V-149TI engine, while the other seven cylinders remained configured for diesel fuel. Coal Combustion was sustained by maintaining high gas and surface temperatures with a combination of hot residual gases, warm inlet air admission, ceramic insulated components and increased compression ratio. The coal-fueled cylinder generated 85kW indicated power (80 percent of rated power), and lower NO{sub x} levels with a combustion efficiency of 99.2 percent. 6 refs., 15 figs., 4 tabs.

Schwalb, J.A.; Ryan, T.W. III.; Kakwani, R.M.; Winsor, R.E.

1994-10-01T23:59:59.000Z

498

Educating Consumers: New Content on Diesel Vehicles, Diesel Exhaust Fluid, and Selective Catalytic Reduction Technologies on the AFDC  

Broader source: Energy.gov [DOE]

Showcases new content added to the AFDC including: Diesel Vehicles, Diesel Exhaust Fluid, Selective Catalytic Reduction Technologies, and an upcoming Deisel Exhaust Fluid Locator.

499

Color Degradation of Hydrocracked Diesel Fuel  

Science Journals Connector (OSTI)

Color Degradation of Hydrocracked Diesel Fuel ... An important quality standard to be examined is the color of diesels, given the fact that consumers tend to relate a dark colored fuel to low quality fuel, where the dark color comes from the fuels aging. ...

Isabelle Bergeron; Jean-Pierre Charland; Marten Ternan

1999-04-17T23:59:59.000Z

500

Combustion Modeling for Diesel Engine Control Design  

E-Print Network [OSTI]

Combustion Modeling for Diesel Engine Control Design Von der Fakult¨at f¨ur Maschinenwesen der Combustion Modeling for Diesel Engine Control Design WICHTIG: D 82 überprüfen !!! #12;Bibliographic research stays at General Motors R&D in Warren, MI, USA, possible. Furthermore, I would like thank Tom

Peters, Norbert