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1

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...

2

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...

3

Fuel Consumption Monitoring and Diesel Engines  

Science Journals Connector (OSTI)

In a perspective to explore how fuel monitoring and diesel engine life are interconnected, it’s 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

4

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...

5

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

6

"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

7

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

8

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

9

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

10

Utiization of alternate fuels in diesel engines  

SciTech Connect (OSTI)

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

Lestz, S.S.

1980-09-01T23:59:59.000Z

11

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 nationÂ’s petroleum consumption. However, diesels emit much higher levels of pollutants, especially particulate matter and NOx (nitrogen oxides). These emissions have prevented more manufacturers from introducing diesel passenger cars. Researchers are exploring ways to reduce pollution formation in the engine

12

Effects of bio-diesel fuel blends on the performance and emissions of diesel engine.  

E-Print Network [OSTI]

??This study presents an experimental investigation into the effects of running biodiesel fuel blends on conventional diesel engines. Bio fuels provide a way to produce… (more)

Bastiani, Sergio.

2008-01-01T23:59:59.000Z

13

Emission Performance of Modern Diesel Engines Fueled with Biodiesel  

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

Emission Performance of Modern Diesel Engines Fueled with Biodiesel Aaron Williams, Jonathan Burton, Xin He and Robert L. McCormick National Renewable Energy Laboratory October 5,...

14

Oxygenated fuels for clean heavy-duty diesel engines  

Science Journals Connector (OSTI)

For diesel engines, changing the fuel composition is an alternative route towards achieving lower emission levels. The potential of oxygenated fuels to significantly reduce particulate matter emissions has already been demonstrated earlier. In this study, this research has been extrapolated towards lower emission levels. Exhaust gas recirculation (EGR) was applied to a modern EURO-3-type HD diesel engine. Tests were done at different engine working points, with EGR-levels and start of fuel delivery timings set to give NOx emissions between 3.5 and 2.0 g/kWh with regular diesel fuel. Fourteen blends of a low-sulphur diesel fuel respectively of a gas-to-liquid synthetic diesel fuel with different oxygenates were tested. The corresponding fuel matrix covers a range of fuel oxygen mass fractions up to 15%. Results are presented and the impact of fuel oxygen mass fraction and Cetane Number are analysed and compared with results from previous research.

P.J.M. Frijters; R.S.G. Baert

2006-01-01T23:59:59.000Z

15

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

16

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

17

Correlations of Exhaust Emissions from a Diesel Engine with Diesel Fuel Properties  

Science Journals Connector (OSTI)

Department of Chemical Engineering, National Technical University of Athens, Iroon Polytechniou 9, Athens 157 80, Greece ... The amount of pollutants emitted from diesel engines is affected by both the engine and the fuel quality. ...

D. Karonis; E. Lois; S. Stournas; F. Zannikos

1998-02-14T23:59:59.000Z

18

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

19

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

20

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

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


21

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

22

Effect of engine operating parameters and fuel characteristics on diesel engine emissions  

E-Print Network [OSTI]

To examine the effects of using synthetic Fischer-Tropsch (FT) diesel fuel in a modern compression ignition engine, experiments were conducted on a MY 2002 Cummins 5.9 L diesel engine outfitted with high pressure, common ...

Acar, Joseph, 1977-

2005-01-01T23:59:59.000Z

23

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

24

Effect of Bioethanol Blended Diesel Fuel and Engine Load on Spray, Combustion, and Emissions Characteristics in a Compression Ignition Engine  

Science Journals Connector (OSTI)

Yan et al.(8) investigated the combustion and emission characteristics of diesel engines fueled with ethanol–diesel blended fuel in a single cylinder diesel engine. ... Figure 11 shows the indicated specific fuel consumption (ISFC) characteristics of diesel–bioethanol blended fuels at various engine loads. ... 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. ...

Su Han Park; In Mo Youn; Yunsung Lim; Chang Sik Lee

2012-07-03T23:59:59.000Z

25

Combustion characteristics of coal fuels in adiabatic diesel engines  

SciTech Connect (OSTI)

An experimental investigation was conducted to determine the combustion characteristics of coal fuels in adiabatic diesel engines. For this purpose engine testing was carried out by the fumigation of fine coal powder to the intake of an insulated and uncooled single cylinder diesel engine. The engine tests conducted include three types of fuels - Diesel fuel No. 2 (DF-2), Dual fuel (DF-2 + Coal), and Coal fuel. Excellent combustion characteristics of coal fuels were obtained in the present work in an adiabatic engine operating at high temperatures. The ''thermal ignition'' concept uncovered in this investigation led to a hot ''ignition chamber'' which provided ignition of the coal fuel. The high temperature engine with the ''ignition chamber'' permitted engine operation on 100% coal fuel without any external ignition aids or compression ignition. With the addition of a glow plug, the coal fueled engine was successfully cold started. For the coal fueled engine tests, analysis of cylinder pressure data showed rapid heat release rates, shorter combustion duration and very fast burning of coal powder fuel. Preliminary results of the apparent indicated cycle efficiency calculated from the heat release data, indicate that 100% coal powder fueled engine has higher cycle efficiency than DF-2 fueled engine in an adiabatic configuration. The problems encountered during the engine tests include: variation in the engine speed and load due to non-uniform coal flow rate by the coal feed system, contamination of the lubricating oil with fine coal powder, and wear of conventional piston rings. However, these problems can be solved with an improved coal feed system and wear resistant ceramic materials for the piston rings. 33 refs.

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

1986-06-01T23:59:59.000Z

26

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

27

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

28

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

29

Natural gas fueling of a Catepillar 3406 diesel engine  

SciTech Connect (OSTI)

This paper reports on a Caterpillar 3406 turbocharged diesel engine which was converted to operate in a natural gas with diesel pilot ignition mode and was evaluated for performance and emission characteristics for both diesel and natural gas operation. Full-load power was achieved with natural gas fueling without knock. Similar fuel efficiencies were obtained with natural gas fueling at high loads, but efficiencies were lower for low loads. Bosch smoke numbers were reduced by over 50 percent with natural gas fueling for all cases investigated. NO[sub x] emissions were found to be lower at low loads and at high speeds under high load. CO emissions were significantly increased for natural gas fueling while CO[sub 2] concentrations in the exhaust were reduced for natural gas fueling.

Doughty, G.E.; Bell, S.R.; Midkiff, K.C. (Dept. of Mechanical Engineering, Univ. of Alabama, Tuscaloosa, AL (United States))

1992-07-01T23:59:59.000Z

30

Effect of biodiesel fuels on diesel engine emissions  

Science Journals Connector (OSTI)

The call for the use of biofuels which is being made by most governments following international energy policies is presently finding some resistance from car and components manufacturing companies, private users and local administrations. This opposition makes it more difficult to reach the targets of increased shares of use of biofuels in internal combustion engines. One of the reasons for this resistance is a certain lack of knowledge about the effect of biofuels on engine emissions. This paper collects and analyzes the body of work written mainly in scientific journals about diesel engine emissions when using biodiesel fuels as opposed to conventional diesel fuels. Since the basis for comparison is to maintain engine performance, the first section is dedicated to the effect of biodiesel fuel on engine power, fuel consumption and thermal efficiency. The highest consensus lies in an increase in fuel consumption in approximate proportion to the loss of heating value. In the subsequent sections, the engine emissions from biodiesel and diesel fuels are compared, paying special attention to the most concerning emissions: nitric oxides and particulate matter, the latter not only in mass and composition but also in size distributions. In this case the highest consensus was found in the sharp reduction in particulate emissions.

Magín Lapuerta; Octavio Armas; José Rodríguez-Fernández

2008-01-01T23:59:59.000Z

31

Dual fueling of a Caterpillar 3406 diesel engine  

SciTech Connect (OSTI)

A Caterpillar 3406 turbocharged diesel engine was converted to operate in a dual-fuel mode and was evaluated for performance and emission characteristics for both diesel and natural gas operation. Full load power was achieved with dual fueling without knock. Similar fuel efficiencies were obtained with dual fueling a high loads, but efficiencies were lower for low loads. Bosch smoke numbers were reduced by over 50% with dual fueling for all cases investigated. NO{sub x} emissions were found to be lower at low loads and at high speeds under high load. CO emissions were significantly increased for dual fueling while CO{sub 2} concentrations in the exhaust were reduced for dual fueling.

Bell, S.R.; Midkiff, K.C.; Doughty, G.; Brett, C.E. [Univ. of Alabama, Tuscaloosa, AL (United States)

1996-05-01T23:59:59.000Z

32

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

33

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

34

Effect of GTL Diesel Fuels on Emissions and Engine Performance  

Broader source: Energy.gov [DOE]

2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: DaimlerChrysler Research and Technology

35

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

Science Journals Connector (OSTI)

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

Krisada Wannatong; Somchai Chanchaona; Surachai Sanitjai

2007-01-01T23:59:59.000Z

36

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

37

Reducing Emissions of Persistent Organic Pollutants from a Diesel Engine by Fueling with Water-Containing Butanol Diesel Blends  

Science Journals Connector (OSTI)

An increasing energy demand and environmental pollution has motivated a search for bio-fuels, such as bio-diesels(1, 2) and bio-alcohols,(3, 4) that can be used as alternative fuels for diesel engines. ... In general, both bio-diesel and bio-alcohols, such as ethanol and butanol, have the advantages of higher brake thermal efficiency (BTE) and lower emissions of particulate matter (PM), carbon monoxide (CO) and hydrocarbons (HC). ... Diesel Engine and Test Cycle ...

Yu-Cheng Chang; Wen-Jhy Lee; Hsi-Hsien Yang; Lin-Chi Wang; Jau-Huai Lu; Ying I. Tsai; Man-Ting Cheng; Li-Hao Young; Chia-Jui Chiang

2014-04-16T23:59:59.000Z

38

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

SciTech Connect (OSTI)

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

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

1984-01-01T23:59:59.000Z

39

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

40

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 0–30% by volume were used. The experiments were conducted in the speed range from 1000 to 3000 rpm. 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 2000 rpm. 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

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


41

Tailoring key fuel properties of diesel–biodiesel–ethanol blends for diesel engine  

Science Journals Connector (OSTI)

Alternative fuel research for the profusely growing number of diesel run automotive has intensified due to environmental reasons and turmoil in petroleum market. Government initiatives all around the world, their energy policies and steps to emphasis the use of biodiesel; proved biodiesel as a number one renewable substitute for No. 2 diesel fuels. Among all biodiesel feedstock, palm oil is a potential source with higher yield rate without much fertilizer use especially in tropical region. However, the application of transesterified palm biodiesel is objected by many auto-manufacturers due to adverse effects on engine in long term operation. The aim of this study was to modify the key fuel properties of palm biodiesel which causes engine fouling in long term operation. A significant amount of work is devoted to mix biodiesel and diesel at arbitrary percentages and test engine performance. Numerous fuel additives are developed for biodiesels automotive use. In this study, chemical properties of biodiesel are tailored by ethanol and an optimum formulation is derived mathematically. Ethanol is used at a controlled proportion (6%) with palm oil methyl ester (POME) as additive to reduce the higher viscosity of POME. This optimum palm biodiesel–ethanol blend was mixed at varying proportions (i.e. 0–30%) with No. 2 diesel to produce ternary blends of diesel–palm biodiesel–ethanol. Cold flow properties (such as, could point, pour point) of these ternary blends has improved and minute percentage of ethanol adding did not adversely affect the oxidation stability and corrosiveness of the fuel blend. Ethanol has significantly reduces the flash point, but the flammability of ternary blends is classified as Class II; similar to that of diesel. Cetane number is reduced in ternary blends by ethanol. So, palm biodiesel with minute percentage of anhydrous ethanol as additive in the ternary blend significantly improved key fuel properties significantly.

Md. Jayed Hussan; Masjuki Hj. Hassan; Md. Abul Kalam; Liaquat Ali Memon

2013-01-01T23:59:59.000Z

42

Experimental analysis of a diesel engine operating in Diesel–Ethanol 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 to achieve 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 35 g/s and another of 45 g/s. Regarding pressure diesel injection, 4 levels were investigated namely 800, 1000, 1200 and 1400 bar.

Roberto Freitas Britto Jr.; Cristiane Aparecida Martins

2014-01-01T23:59:59.000Z

43

Diesel engine lubrication with poor quality residual fuel  

SciTech Connect (OSTI)

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

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

1983-01-01T23:59:59.000Z

44

Assessment of fuel efficiency of neem biodiesel (Azadirachta indica) in a single cylinder diesel engine  

Science Journals Connector (OSTI)

Increase of petroleum diesel usage and its environmental pollution necessitate the study of alternate fuel production. Vegetable oils are the viable alternate form of non-polluted, renewable fuel to diesel engines. In this work, the non-edible oil, neem (Azadirachta indica) was used to produce biodiesel by a two step transesterification process. The fuel properties of the biodiesel thus produced were determined by standard methods. It is further tested in a single cylinder diesel engine by mixing with petroleum diesel in various percentages. The brake thermal efficiency (BTE) and specific fuel consumption (SFC) of the engine running with biodiesel blends (10-50%) were compared with the petroleum diesel. The results have shown that the performance of the diesel engine was similar as that of normal diesel and thus the use of biodiesel in diesel engine is viable.

M. Mathiyazhagan; T. Elango; T. Senthilkumar; A. Ganapathi

2013-01-01T23:59:59.000Z

45

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

46

Experimental investigation on thermal barrier coated diesel engine fueled with diesel-biodiesel-ethanol-diethyl ether blends  

Science Journals Connector (OSTI)

In the present work diesel-biodiesel-ethanol (DBE) and diesel-biodiesel-diethyl ether (DBD) fuels are tested with normal diesel engine and the diesel engine coated with the layers of aluminum oxide (Al 2O3) of 0.3?mm and yttria-stabilized zirconia of 0.2?mm. The various performance and emission parameters are analyzed and determined. The experimental work was carried out in a single cylinder water cooled engine coupled with eddy current dynamometer. The AVL make five gas analyzer and smoke meter were used to measure the different exhaust pollutants. The result shows that the brake thermal efficiency of coated engine is more than that of base diesel at high loads. The thermal barrier coated engine using fuel as diesel biodiesel and ethanol (TDBE) produces the lowest carbon monoxide (CO) emissions among all the fuels that are selected. In addition it produces the lowest carbon dioxide (CO2) at higher loads. Both the thermal barrier coated engine using fuel as diesel biodiesel and diethyl ether (TDBD) and TDBE have higher NOx emissions among almost all the fuels used. The TDBE and TDBD have higher smoke emissions at initial loads but eventually show lower smoke emissions at higher loads. The thermal barrier coated diesel engine fueled with DBE and DBD shows an increase in engine power and specific fuel consumption as well as significant improvements in exhaust gas emissions except NOx.

2013-01-01T23:59:59.000Z

47

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

48

Application of Exhaust Gas Fuel Reforming in Compression Ignition Engines Fueled by Diesel and Biodiesel Fuel Mixtures  

Science Journals Connector (OSTI)

In recent years, ester-based oxygenated fuels have been used in compression ignition engines in pure form or as an addition to diesel fuel. ... In hydrocarbon steam reforming (SR), high-temperature steam separates hydrogen from carbon atoms. ...

A. Tsolakis; A. Megaritis; M. L. Wyszynski

2003-09-19T23:59:59.000Z

49

A Neural Network Approach for the Correlation of Exhaust Emissions from a Diesel Engine with Diesel Fuel Properties  

Science Journals Connector (OSTI)

National Technical University of Athens, Department of Chemical Engineering, Iroon Polytechniou 9, Athens 157 80, Greece ... The emissions from diesel engines have been drastically reduced during the last 30 years as a result of significant improvement in engine technology and modification of diesel fuel. ... First principles models are using fundamental equations, which have been developed by analyzing the physical insight of the systems. ...

D. Karonis; E. Lois; F. Zannikos; A. Alexandridis; H. Sarimveis

2003-08-15T23:59:59.000Z

50

Reaction Profiles during Exhaust-Assisted Reforming of Diesel Engine Fuels  

Science Journals Connector (OSTI)

Reaction Profiles during Exhaust-Assisted Reforming of Diesel Engine Fuels ... The reforming efficiency was dependent on the fuel type and followed the general trend of bioethanol > rapeseed methyl ester > low-sulfur diesel fuel. ... The use of exhaust gas recirculation (EGR) in diesel engines reduces nitrogen oxide (NOx) emissions but results in an increased release of smoke and particulate matter (PM), as well as higher fuel consumption. ...

A. Tsolakis; A. Megaritis; S. E. Golunski

2005-03-10T23:59:59.000Z

51

Oxygen Reactivity of Devolatilized Diesel Engine Particulates from Conventional and Biodiesel Fuels  

Science Journals Connector (OSTI)

Oxygen Reactivity of Devolatilized Diesel Engine Particulates from Conventional and Biodiesel Fuels ... Abatement of diesel particulates has led to an overall decrease in the fuel efficiency of diesel engines, and overcoming these losses has been one of the more challenging problems in exhaust aftertreatment. ... (16-18) Establishing a general physical basis for modeling diesel particulate oxidation is especially challenging because of the large variations in microscopic structure that it can have. ...

Andrea Strzelec; Todd J. Toops; C. Stuart Daw

2013-06-10T23:59:59.000Z

52

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 Fischer–Tropsch 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 = 40–80) 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

53

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; André L. Boehman; Philip John Young; Francis J. Waller

2002-01-15T23:59:59.000Z

54

Influence of Biodiesel Addition to Fischer?Tropsch Fuel on Diesel Engine Performance and Exhaust Emissions  

Science Journals Connector (OSTI)

Zhu, R.; Wang, X.; Miao, H.; Huang, Z.; Gao, J.; Jiang, D.Performance and Emission Characteristics of Diesel Engines Fueled with Diesel-Dimethoxymethane (DMM) Blends Energy Fuels 2009, 23, 286– 293 ... Results showed that, without changing the fuel supply system and the combustion system of a diesel engine, when using blended fuel with increased DMM percentage, break-specific fuel consumption (BSFC) is higher for a smaller lower heating value of DMM, while thermal efficiency increases a little. ... To investigate influences of fuel design on regulated and non-regulated emissions of heavy-duty diesel engines, a Mercedes-Benz OM 906 Euro 3 engine was run with common diesel fuel (DF), first- and second-generation alternative fuels (Gas-to-liq. ...

Md. Nurun Nabi; Johan Einar Hustad

2010-04-14T23:59:59.000Z

55

Innovative coal-fueled diesel engine injector  

SciTech Connect (OSTI)

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

Badgley, P.; Doup, D.

1991-05-01T23:59:59.000Z

56

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

57

Dual Fuel Diesel Engine Operation Using H2. Effect on Particulate Emissions  

Science Journals Connector (OSTI)

Dual Fuel Diesel Engine Operation Using H2. ... School of Engineering, Mechanical and Manufacturing Engineering, The University of Birmingham, Birmingham B15 2TT, United Kingdom, Universidad de Castilla?La Mancha, Edificio Politecnico, Escuela Tecnica Superior de Ingenieros Industriales, Avda. ... In diesel engines, the reduction of particulate emissions must be achieved in conjunction with the reduction of NOx emissions. ...

A. Tsolakis; J. J. Hernandez; A. Megaritis; M. Crampton

2005-01-11T23:59:59.000Z

58

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. Gómez; F. J. López Giménez

2003-10-02T23:59:59.000Z

59

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

60

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

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


61

Effects of Fuel Sulfur Content and Diesel Oxidation Catalyst on PM Emitted from Light-Duty Diesel Engine  

Science Journals Connector (OSTI)

This work aims at the particle number concentrations and size distributions, sulfate and trace metals emitted from a diesel engine fueled with three different sulfur content fuels, operating with and without DOC. ... Figure 2. Sulfate emission rate and fuel consumption as a function of sulfur content at engine speed of 2690 rpm. ... Thus, the use of low metal fuels and lubricating oil is as important to the environment and human health as low sulfur fuels, especially for engines with after-treatment devices. ...

Hong Zhao; Yunshan Ge; Xiaochen Wang; Jianwei Tan; Aijuan Wang; Kewei You

2010-01-05T23:59:59.000Z

62

Evaluation of Fuel Properties of Butanol?Biodiesel?Diesel Blends and Their Impact on Engine Performance and Emissions  

Science Journals Connector (OSTI)

Values of specific fuel consumption of engine when fueled with different blends and pure diesel at different speeds are shown in Figure 4. ... Chandra, R.; Kumar, R. Fuel properties of some stable alcohol?diesel microemulsions for their use in compression ignition engines Energy Fuels 2007, 21, 3410– 3414 ... Liu, B.; Huang, Z.; Miao, H.; Di, Y.; Jiang, D.; Zeng, K. Combustion and emissions of a DI diesel engine fuelled with diesel?oxygenate blends Fuel 2008, 87, 2691– 2697 ...

Rakhi N. Mehta; Mousumi Chakraborty; Pinakeswar Mahanta; Parimal A. Parikh

2010-07-15T23:59:59.000Z

63

Concentration measurements of biodiesel in engine oil and in diesel fuel  

Science Journals Connector (OSTI)

This work comprised a method for concentration measurements of biodiesel in engine oil as well as biodiesel in diesel fuel by a measurement of the permittivity of the mixture at a frequency range from 100 Hz to 20 kHz. For this purpose a special designed measurement cell with high sensitivity was designed. The results for the concentration measurements of biodiesel in the engine oil and diesel fuel shows linearity to the measurement cell signal for the concentration of biodiesel in the engine oil between 0.5% Vol. to 10% Vol. and for biodiesel in the diesel fuel between 0% Vol. to 100% Vol. The method to measure the concentration of biodiesel in the engine oil or the concentration of biodiesel in the diesel fuel is very accurate and low concentration of about 0.5% Vol. biodiesel in engine oil or in diesel fuel can be measured with high accuracy.

A Mäder; M Eskiner; C Burger; W Ruck; M Rossner; J Krahl

2012-01-01T23:59:59.000Z

64

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

65

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

66

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

67

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

68

Investigation of the Performance and Emission Characteristics of Biodiesel Fuel Containing Butanol under the Conditions of Diesel Engine Operation  

Science Journals Connector (OSTI)

(17) However, emissions of engines fueled with multicomponent fuels containing fossil diesel, butanol, and rapeseed oil butyl/methyl esters have not been tested. ... Break specific fuel consumption when engine is fuelled with fossil diesel fuel (n = 1500 min?1). ... For all cases, engine torque was retained the same by adjusting fueling rate. ...

Sergejus Lebedevas; Galina Lebedeva; Egle Sendzikiene; Violeta Makareviciene

2010-07-23T23:59:59.000Z

69

Investigation of Biodiesel–Diesel Fuel Blends on Combustion Characteristics in a Light-Duty Diesel Engine Using OpenFOAM  

Science Journals Connector (OSTI)

Investigation of Biodiesel–Diesel Fuel Blends on Combustion Characteristics in a Light-Duty Diesel Engine Using OpenFOAM ... (1) In addition, biodiesel can be used in existing compression ignition (CI) or diesel engines with minimal or no modifications because its physicochemical characteristics are very similar to those of fossil diesel. ... However, when CME, PME, and SME are blended with 50 vol % of diesel fuel, the general trend as discussed above is not reproduced. ...

Harun Mohamed Ismail; Hoon Kiat Ng; Suyin Gan; Xinwei Cheng; Tommaso Lucchini

2012-11-12T23:59:59.000Z

70

Nanoparticle Emissions from a Heavy-Duty Engine Running on Alternative Diesel Fuels  

Science Journals Connector (OSTI)

Nanoparticle Emissions from a Heavy-Duty Engine Running on Alternative Diesel Fuels ... Neat vegetable oils or animal fats are not suitable for high-speed diesel engines, and thus a transesterification process is required to produce fatty acid methyl esters (FAME). ... General trends in size distribution measurements are shown in Figure 1. ...

Juha Heikkilä; Annele Virtanen; Topi Rönkkö; Jorma Keskinen; Päivi Aakko-Saksa; Timo Murtonen

2009-11-16T23:59:59.000Z

71

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

72

Comparison Study of SPEA2+, SPEA2, and NSGA-II in Diesel Engine Emissions and Fuel Economy Problem  

E-Print Network [OSTI]

Comparison Study of SPEA2+, SPEA2, and NSGA-II in Diesel Engine Emissions and Fuel Economy Problem@mail.doshisha.ac.jp Abstract- Recently, the technology that can control NOx and Soot values of diesel engines by changing between fuel economy and NOx values. Therefore, the diesel engines that can change their characteristics

Coello, Carlos A. Coello

73

Operating temperature effects on nozzle coking in a cottonseed oil fueled diesel engine  

E-Print Network [OSTI]

OPERATING TEMPERATURE EFFECTS ON NOZZLE COKING IN A COTTONSEED OIL FUELED DIESEL ENGINE A Thesis CHARLES MICHAEL YARBROUGH Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree cf... MASTER OF SCIENCE December 1984 Major Subject: Agricultural Engineering OPERATING TEMPERATURE EFFECTS ON NOZZLE CORING IN A COTTONSEED OIL FUELED DIESEL ENGINE A Thesis by CHARLES MICHAEL YARBROUGH Approved as to style and content by: ayne A. Le...

Yarbrough, Charles Michael

2012-06-07T23:59:59.000Z

74

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

75

Comparison of blends of conventional diesel fuel and CRBO containing high levels of FFA in a DI diesel engine  

Science Journals Connector (OSTI)

This work attempts to analyse the ability of high free fatty acid (FFA) crude rice bran oil (CRBO) in replacing diesel partially in a compression ignition (CI) engine. It was observed that the delay period and the maximum rate of pressure rise for CRBO blends are lower than diesel and is almost inversely proportional to FFA content. Maximum heat release rate for CRBO blends are lower and occur earlier than that of diesel. CRBO blends require longer duration to release 90% of heat than diesel and it decreases with increase in FFA content of CRBO. When operating with CRBO blends, all emission parameters were decreased significantly with a marginal increase in CO emission than that of diesel without affecting the brake thermal efficiency of the engine. It is concluded that higher FFA of CRBO blends does not inhibit its ability to be utilised as a fuel in CI engines.

S. Saravanan; G. Lakshmi Narayana Rao; S. Sampath; G. Nagarajan

2012-01-01T23:59:59.000Z

76

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

SciTech Connect (OSTI)

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

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

1983-09-01T23:59:59.000Z

77

Effect of idling on fuel consumption and emissions of a diesel engine fueled by Jatropha biodiesel blends  

Science Journals Connector (OSTI)

Abstract An engine running at low load and low rated speed is said to be subject to high idling conditions, a mode which represents one of the major problems currently the transport industry is facing. During this time, the engine can not work at peak operating temperature. This leads to incomplete combustion and emissions level increase due to having fuel residues in the exhaust. Also, idling results in increase in fuel consumption. The purpose of this study is to evaluate fuel consumption and emissions parameters under high idling conditions when diesel blended with Jatropha curcas biodiesel is used to operate a diesel engine. Although biodiesel–diesel blends decrease carbon monoxide and hydrocarbon emissions, they increase nitrogen oxides emissions in high idling modes. Compared to pure diesel fuel, fuel consumption also increases under all high idling conditions for biodiesel–diesel blends, with a further increase occurring as blend percentage rises.

S.M. Ashrafur Rahman; H.H. Masjuki; M.A. Kalam; M.J. Abedin; A. Sanjid; S. Imtenan

2014-01-01T23:59:59.000Z

78

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

SciTech Connect (OSTI)

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

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

1999-05-05T23:59:59.000Z

79

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

80

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 (P engine power, torque and specific fuel consumption. The mean values of engine power were increased in the range of 59.14–69.5 kW 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 319–296 N m. The maximum torque reduction was about 25 N m for neat petro-diesel fuel. The engine torque was decreased significantly (P engine speed ranged from 1600 to 2000 rpm. The engine specific fuel consumption was increased significantly when the engine speed ranged from 1900 to 2000 rpm. 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

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


81

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 Fischer–Tropsch 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

82

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

83

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 115 MPa. 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

84

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

85

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 &...

86

Combustion characteristics of dry coal-powder-fueled adiabatic diesel engine: Final report  

SciTech Connect (OSTI)

This report describes the progress and findings of a research program aimed at investigating the combustion characteristics of dry coal powder fueled diesel engine. During this program, significant achievements were made in overcoming many problems facing the coal-powder-fueled engine. The Thermal Ignition Combustion System (TICS) concept was used to enhance the combustion of coal powder fuel. The major coal-fueled engine test results and accomplishments are as follows: design, fabrication and engine testing of improved coal feed system for fumigation of coal powder to the intake air; design, fabrication and engine testing of the TICS chamber made from a superalloy material (Hastelloy X); design, fabrication and engine testing of wear resistant chrome oxide ceramic coated piston rings and cylinder liner; lubrication system was improved to separate coal particles from the contaminated lubricating oil; control of the ignition timing of fumigated coal powder by utilizing exhaust gas recirculation (EGR) and variable TICS chamber temperature; coal-fueled engine testing was conducted in two configurations: dual fuel (with diesel pilot) and 100% coal-fueled engine without diesel pilot or heated intake air; cold starting of the 100% coal-powder-fueled engine with a glow plug; and coal-fueled-engine was operated from 800 to 1800 rpm speed and idle to full load engine conditions.

Kakwani, R.M.; Kamo, R.

1989-01-01T23:59:59.000Z

87

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

88

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

89

Combustion of the alternative marine diesel fuel LCO in large diesel engines  

Science Journals Connector (OSTI)

Large diesel engines represent the heart of the ships, which transport worldwide about 80 % of the goods over the sea route these days. Regimentations of the IMO are planning drastic reductions of nitrogen oxi...

Dipl.-Ing. Daniel Struckmeier; Prof. Dr.-Ing. Koji Takasaki…

2008-11-01T23:59:59.000Z

90

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

91

Potential for Reduction of Exhaust Emissions in a Common-Rail Direct-Injection Diesel Engine by Fueling with Fischer–Tropsch 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 technologies—Development 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

92

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

SciTech Connect (OSTI)

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

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

1991-07-01T23:59:59.000Z

93

Wear mechanism and wear prevention in coal-fueled diesel engines  

SciTech Connect (OSTI)

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

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

1991-07-01T23:59:59.000Z

94

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

SciTech Connect (OSTI)

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

Not Available

1991-12-01T23:59:59.000Z

95

Fabrication of small-orifice fuel injectors for diesel engines.  

SciTech Connect (OSTI)

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

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

2005-04-08T23:59:59.000Z

96

Impact of Real Field Diesel Quality Variability on Engine Emissions and Fuel Consumption Solutions for Onboard Optimisation  

Broader source: Energy.gov [DOE]

A matrix of 10 diesel fuels was prepared and tested to establish an optimized ECU setting and a compensating algorithm for the engine.

97

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

98

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 Lähde; Topi Rönkkö; Matti Happonen; Christer Söderström; Annele Virtanen; Anu Solla; Matti Kytö; Dieter Rothe; Jorma Keskinen

2011-02-24T23:59:59.000Z

99

Effects of altitude and fuel oxygen content on the performance of a high pressure common rail diesel engine  

Science Journals Connector (OSTI)

Abstract The change of intake oxygen content caused by altitude variation and the change of fuel oxygen content both affect the performance of diesel engines. In this paper, comparative experiments were performed on a high pressure common rail diesel engine fueled with pure diesel and biodiesel–ethanol–diesel (abbreviated as BED) blends with oxygen content of 2%, 2.5%, and 3.2% in mass percentage at different atmospheric pressures of 81 kPa, 90 kPa, and 100 kPa. Moreover, in order to study the effect of different fuel blends with the same oxygen content on the performance of the diesel engine, tests were conducted on the diesel engine fueled with the BED blend and a biodiesel–diesel (abbreviated as BD) blend at 81 kPa ambient pressure. The experimental results indicate that the influence of altitude variation on the full-load engine brake torque is not significant when the pure diesel fuel is used. With the increase of BED fuel oxygen content, the engine brake torque reduces. When the pure diesel fuel is used, with the increase of atmospheric pressure, the brake specific fuel consumption (BSFC) decreases. As the fuel oxygen content increases, there is no significant difference in brake specific fuel consumption of the BED blends. And the values of brake specific energy consumption (BSEC) gradually decrease. Soot emissions of the diesel engine decrease with the increase of atmospheric pressure and fuel oxygen content. The effect of soot emission reduction by increasing the oxygen content of the fuel is more significant than the effect of increasing atmospheric pressure. The effects of BD and BED fuels with basically the same oxygen content on the full-load performance, fuel economy, and soot emissions of the diesel engine are different. The BSFC and soot emissions of the BED fuel are lower than those of the BD fuel.

Shaohua Liu; Lizhong Shen; Yuhua Bi; Jilin Lei

2014-01-01T23:59:59.000Z

100

Coal-fueled high-speed diesel engine development  

SciTech Connect (OSTI)

The objectives of this program are to study combustion feasibility by running Series 149 engine tests at high speeds with a fuel injection and combustion system designed for coal-water-slurry (CWS). The following criteria will be used to judge feasibility: (1) engine operation for sustained periods over the load range at speeds from 600 to 1900 rpm. The 149 engine for mine-haul trucks has a rated speed of 1900 rpm; (2) reasonable fuel economy and coal burnout rate; (3) reasonable cost of the engine design concept and CWS fuel compared to future oil prices.

Not Available

1991-11-01T23:59:59.000Z

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


101

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

102

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

103

An overview of utilizing water-in-diesel emulsion fuel in diesel engine and its potential research study  

Science Journals Connector (OSTI)

Abstract The need for more efficient energy usage and a less polluted environment are the prominent research areas that are currently being investigated by many researchers worldwide. Water-in-diesel emulsion fuel (W/D) is a promising alternative fuel that could fulfills such requests in that it can improve the combustion efficiency of a diesel engine and reduce harmful exhaust emission, especially nitrogen oxides (NOx) and particulate matter (PM). To date, there have been many W/D emulsion fuel studies, especially regarding performance, emissions and micro-explosion phenomena. This review paper gathers and discusses the recent advances in emulsion fuel studies in respect of the impact of W/D emulsion fuel on the performance and emission of diesel engines, micro-explosion phenomena especially the factors that affecting the onset and strength of micro-explosion process, and proposed potential research area in W/D emulsion fuel study. There is an inconsistency in the results reported from previous studies especially for the thermal efficiency, brake power, torque and specific fuel consumption. However, it is agreed by most of the studies that W/D does result in an improvement in these measurements when the total amount of diesel fuel in the emulsion is compared with that of the neat diesel fuel. \\{NOx\\} and PM exhaust gas emissions are greatly reduced by using the W/D emulsion fuel. Unburnt hydrocarbon (UHC) and carbon monoxide (CO) exhaust emissions are found to be increased by using the W/D emulsion fuel. The inconsistency of the experimental result can be related to the effects of the onset and the strength of the micro-explosion process. The factors that affect these measurements consist of the size of the dispersed water particle, droplet size of the emulsion, water-content in the emulsion, ambient temperature, ambient pressure, type and percentage of surfactant, type of diesel engine and engine operating conditions. Durability testing and developing the fuel production device that requires no/less surfactant are the potential research area that can be explored in future.

Ahmad Muhsin Ithnin; Hirofumi Noge; Hasannuddin Abdul Kadir; Wira Jazair

2014-01-01T23:59:59.000Z

104

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

105

Assessment of the use of oxygenated fuels on emissions and performance of a diesel engine  

Science Journals Connector (OSTI)

Abstract Requirements as torque, power, specific fuel consumption and emitted compounds are highly influenced by the chemical composition of the fuel being burned. Thus, the aim of this study was to assess the use of oxygenated fuels on emissions of NOx, CO, HC, CO2 and particle number and size distribution (11.5 diesel engine coupled to a dynamometer bench was used, where three types of fuels were employed, B5 (diesel with 5% of biodiesel); B5E6 (ternary composition containing 89% diesel, 5% of biodiesel and 6% of ethanol); and B100 (100% of biodiesel). The performance of a diesel engine was also evaluated to see the impact of the oxygenated fuels in this kind of engine. The use of ethanol with high latent heat of vaporization and low cetane number added to the binary blend (B5) shown an increase in the HC emissions and a reduction in \\{NOx\\} emissions when compared to B5. The use of pure biodiesel (B100) with high oxygen content showed a reduction in the HC emissions, but presented the highest emissions for both \\{NOx\\} and particle number of smaller diameter among the studied fuels. The use of more oxygenated fuels reduced the power output and increased the fuel consumption, but the exergy analysis showed that the energy efficiency of these fuels could be considered similar to the B5 fuel.

Lílian Lefol Nani Guarieiro; Egídio Teixeira de Almeida Guerreiro; Keize Katiane dos Santos Amparo; Victor Bonfim Manera; Ana Carla D. Regis; Aldenor Gomes Santos; Vitor P. Ferreira; Danilo J. Leão; Ednildo A. Torres; Jailson B. de Andrade

2014-01-01T23:59:59.000Z

106

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

107

Operation of Marine Diesel Engines on Biogenic Fuels: Modification of Emissions and Resulting Climate Effects  

Science Journals Connector (OSTI)

The modification of emissions of climate-sensitive exhaust compounds such as CO2, NOx, hydrocarbons, and particulate matter from medium-speed marine diesel engines was studied for a set of fossil and biogenic fuels. Applied fossil fuels were the reference ...

Andreas Petzold; Peter Lauer; Uwe Fritsche; Jan Hasselbach; Michael Lichtenstern; Hans Schlager; Fritz Fleischer

2011-11-01T23:59:59.000Z

108

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

Science Journals Connector (OSTI)

Abstract This paper presents a detailed experimental analysis of diesel–ignited 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 20 bar and different percent energy substituted (PES) by propane at a constant engine speed of 1500 rpm. 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 diesel–ignited propane combustion. With stock engine parameters, the maximum propane PES was limited to 86%, 60%, 33%, and 25% at 5, 10, 15, and 20 bar 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 10 bar 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

109

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

110

Engine deposit and pour point studies using canola oil as a diesel fuel  

SciTech Connect (OSTI)

Engine tests conducted during previous investigations have established the viability of using canola oil as a substitute for diesel fuel on a short term basis, but also revealed the need to assess possible combustion chamber deposits from long range testing. Low temperature problems in handling vegetable oils has also been recognized as posing a threat to their use in winter operation. This paper reports a procedure involving a direct comparison of running two different fuels in an engine simultaneously to study deposit problems, and also reports on three attempted methods - fuel blending, fuel heating and fuel additives to reduce the pour point of canola oil. 3 figures, 1 table.

Strayer, R.C.; Craig, W.K.; Zoerb, G.C.

1982-01-01T23:59:59.000Z

111

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 1800 rev min?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

112

Development of OTM Syngas Process and Testing of Syngas Derived Ultra-clean Fuels in Diesel Engines and Fuel Cells  

SciTech Connect (OSTI)

This topical report summarizes work accomplished for the Program from November 1, 2001 to December 31, 2002 in the following task areas: Task 1: Materials Development; Task 2: Composite Development; Task 4: Reactor Design and Process Optimization; Task 8: Fuels and Engine Testing; 8.1 International Diesel Engine Program; 8.2 Nuvera Fuel Cell Program; and Task 10: Program Management. Major progress has been made towards developing high temperature, high performance, robust, oxygen transport elements. In addition, a novel reactor design has been proposed that co-produces hydrogen, lowers cost and improves system operability. Fuel and engine testing is progressing well, but was delayed somewhat due to the hiatus in program funding in 2002. The Nuvera fuel cell portion of the program was completed on schedule and delivered promising results regarding low emission fuels for transportation fuel cells. The evaluation of ultra-clean diesel fuels continues in single cylinder (SCTE) and multiple cylinder (MCTE) test rigs at International Truck and Engine. FT diesel and a BP oxygenate showed significant emissions reductions in comparison to baseline petroleum diesel fuels. Overall through the end of 2002 the program remains under budget, but behind schedule in some areas.

E.T. (Skip) Robinson; James P. Meagher; Prasad Apte; Xingun Gui; Tytus R. Bulicz; Siv Aasland; Charles Besecker; Jack Chen Bart A. van Hassel; Olga Polevaya; Rafey Khan; Piyush Pilaniwalla

2002-12-31T23:59:59.000Z

113

Large Diesel Engine Lubrication  

Science Journals Connector (OSTI)

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

Hans Gaca; Jan Ruiter; Götz Mehr; Theo Mang

2014-01-01T23:59:59.000Z

114

Investigation of Combustion and Emission Characteristics of a Diesel Engine with Oxygenated Fuels and Thermal Barrier Coating  

Science Journals Connector (OSTI)

Investigation of Combustion and Emission Characteristics of a Diesel Engine with Oxygenated Fuels and Thermal Barrier Coating ... Exhaust gas emissions from diesel engines have become a serious problem to the researchers; therefore, a method of reduction of gas emission is needed. ... Their results show that the engine can achieve ultra-low emission without fundamental change to the combustion system. ...

P. Ramu; C. G. Saravanan

2009-01-07T23:59:59.000Z

115

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...

116

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

117

Premixed ignition behavior of alternative diesel fuel-relevant compounds in a motored engine experiment  

SciTech Connect (OSTI)

A motored engine study using premixed charges of fuel and air at a wide range of diesel-relevant equivalence ratios was performed to investigate autoignition differences among surrogates for conventional diesel fuel, gas-to-liquid (GTL) diesel fuel, and biodiesel, as well as n-heptane. Experiments were performed by delivering a premixed charge of vaporized fuel and air and increasing the compression ratio in a stepwise manner to increase the extent of reaction while monitoring the exhaust composition via Fourier transform infrared (FTIR) spectrometry and collecting condensable exhaust gas for subsequent gas chromatography/mass spectrometry (GC/MS) analysis. Each fuel demonstrated a two-stage ignition process, with a low-temperature heat release (LTHR) event followed by the main combustion, or high-temperature heat release (HTHR). Among the three diesel-relevant fuels, the magnitude of LTHR was highest for GTL diesel, followed by methyl decanoate, and conventional diesel fuel last. FTIR analysis of the exhaust for n-heptane, the conventional diesel surrogate, and the GTL diesel surrogate revealed that LTHR produces high concentrations of aldehydes and CO while producing only negligible amounts of CO{sub 2}. Methyl decanoate differed from the other two-stage ignition fuels only in that there were significant amounts of CO{sub 2} produced during LTHR; this was the result of decarboxylation of the ester group, not the result of oxidation. GC/MS analysis of LTHR exhaust condensate for n-heptane revealed high concentrations of 2,5-heptanedione, a di-ketone that can be closely tied to species in existing autoignition models for n-heptane. GC/MS analysis of the LTHR condensate for conventional diesel fuel and GTL diesel fuel revealed a series of high molecular weight aldehydes and ketones, which were expected, as well as a series of organic acids, which are not commonly reported as products of combustion. The GC/MS analysis of the methyl decanoate exhaust condensate revealed that the aliphatic chain acts similarly to n-paraffins during LTHR, while the ester group remains intact. Thus, although the FTIR data revealed that decarboxylation occurs at significant levels for methyl decanoate, it was concluded that this occurs after the aliphatic chain has been largely consumed by other LTHR reactions. (author)

Szybist, James P.; Boehman, Andre L.; Haworth, Daniel C. [Pennsylvania State University, Fuel Science Program, 405 Academic Activities Building, University Park, PA 16802 (United States); Koga, Hibiki [Honda R and D Company, Ltd., Asaka-shi, Saitama 351-0024 (Japan)

2007-04-15T23:59:59.000Z

118

An experimental study of emission and combustion characteristics of marine diesel engine with fuel pump malfunctions  

Science Journals Connector (OSTI)

Abstract Presented paper shows the results of the laboratory study on the relation between the chosen malfunctions of a fuel pump and the exhaust gas composition of the marine engine. The object of research is a laboratory four-stroke diesel engine, operated at a constant speed. During the research over 50 parameters were measured with technical condition of the engine recognized as “working properly” and with simulated fuel pump malfunctions. Considered malfunctions are: fuel injection timing delay and two sets of fuel leakages in the fuel pump of one engine cylinder. The results of laboratory research confirm that fuel injection timing delay and fuel leakage in the fuel pump cause relatively small changes in thermodynamic parameters of the engine. Changes of absolute values are so small they may be omitted by marine engines operators. The measuring of the exhaust gas composition shows markedly affection with simulated malfunctions of the fuel pump. Engine operation with delayed fuel injection timing in one cylinder indicates CO2 emission increase and \\{NOx\\} emission decreases. CO emission increases only at high the engine loads. Fuel leakage in the fuel pump causes changes in CO emission, the increase of CO2 emission and the decrease of \\{NOx\\} emission.

Jerzy Kowalski

2014-01-01T23:59:59.000Z

119

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

120

In-cylinder pressure characteristics of a CI engine using blends of diesel fuel and methyl esters of beef tallow  

SciTech Connect (OSTI)

A Cummins N14-410 diesel engine was operated on 12 fuels produced by blending methyl tallowate, methyl soyate, and ethanol with no. 2 diesel fuel. Engine in-cylinder pressure data were used to evaluate engine performance. Peak cylinder pressures for each fuel blend at all engine speeds were lower than peak pressure for diesel fuel with the exception of the 80% diesel, 13% methyl tallowate, and 7% ethanol; and the 80% diesel, 6.5% methyl tallowate, 6.5% methyl soyate and 7% ethanol blends. The indicated mean effective pressure (IMEP) values for all fuel blends were less than for diesel fuel. The differences in IMEP values correlated with differences in power output of the engine. Similarly, maximum rates of pressure rise for most fuel blends were less than for diesel fuel. It was concluded that the fuel blends used in this study would have no detrimental long-term effects on engine performance, wear, and knock. 6 refs., 4 figs., 7 tabs.

Ali, Y.; Hanna, M.A.; Borg, J.E. [Univ. of Nebraska, Lincoln, NE (United States)

1996-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "fueling diesel engines" from the National Library of EnergyBeta (NLEBeta).
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121

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

122

Performance and Emissions of a Compression Ignition Engine Fueled with Diesel/Oxygenate Blends for Various Fuel Delivery Advance Angles  

Science Journals Connector (OSTI)

State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, People's Republic of China ... In the application of pure oxygenated fuels, Fleisch et al.,1 Kapus and Ofner,2 and Sorenson and Mikkelsen3 have studied dimethyl ether (DME) in a modified diesel engine, and their results showed that the engine could achieve ultralow-emission prospects without a fundamental change in combustion systems. ... Although some previous work has revealed the characteristics of diesel/ethanol blends in a compression ignition engine (Satge de Caro et al.,14 Ali et al.15), there, however, is still much work that needs to be done in regard to the application of diesel/methanol blends in compression ignition engines, especially in clarifying the basic combustion and emission. ...

Zuohua Huang; Hongbing Lu; Deming Jiang; Ke Zeng; Bing Liu; Junqiang Zhang; Xibin Wang

2005-02-02T23:59:59.000Z

123

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.

124

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

125

Numerical and Experimental Analysis of Combustion and Exhaust Emissions in a Dual-Fuel Diesel/Natural Gas Engine  

Science Journals Connector (OSTI)

Department of Mechanical Engineering, UTV, University of Rome Tor Vergata, Rome, Italy, and IM-CNR, Istituto Motori of Italian National Research Council, Naples, Italy ... Accordingly, the use of NG as primary fuel allows the same compression ratio of the conventional diesel engine; thus, existing diesel engines can be easily converted to dual-fuel operation. ... Thus, a more general combustion model (G-equation or EDC) could be considered to represent flame propagation. ...

Stefano Cordiner; Michele Gambino; Sabato Iannaccone; Vittorio Rocco; Riccardo Scarcelli

2008-02-21T23:59:59.000Z

126

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...

127

Investigation of the effects of renewable diesel fuels on engine performance, combustion, and emissions  

Science Journals Connector (OSTI)

Abstract A study was undertaken to investigate renewable fuels in a compression-ignition internal combustion engine. The focus of this study was the effect of newly developed renewable fuels on engine performance, combustion, and emissions. Eight fuels were investigated, and they include diesel, jet fuel, a traditional biodiesel (fatty acid methyl ester: FAME), and five next generation biofuels. These five fuels were derived using a two-step process: hydrolysis of the oil into fatty acids (if necessary) and then a thermo-catalytic process to remove the oxygen via a decarboxylation reaction. The fuels included a fed batch deoxygenation of canola derived fatty acids (DCFA), a fed batch deoxygenation of canola derived fatty acids with varying amounts of H2 used during the deoxygenation process (DCFAH), a continuous deoxygenation of canola derived fatty acids (CDCFA), fed batch deoxygenation of lauric acid (DLA), and a third reaction to isomerize the products of the deoxygenated canola derived fatty acid alkanes (IPCF). Diesel, jet fuel, and biodiesel (FAME) have been used as benchmarks for comparing with the newer renewable fuels. The results of the experiments show slightly lower mechanical efficiency but better brake specific fuel consumption for the new renewable fuels. Results from combustion show shorter ignition delays for most of the renewable (deoxygenated) fuels with the exception of fed batch deoxygenation of lauric acid. Combustion results also show lower peak in-cylinder pressures, reduced rate of increase in cylinder pressure, and lower heat release rates for the renewable fuels. Emission results show an increase in hydrocarbon emissions for renewable deoxygenated fuels, but a general decrease in all other emissions including NOx, greenhouse gases, and soot. Results also demonstrate that isomers of the alkanes resulting from the deoxygenation of the canola derived fatty acids could be a potential replacement to conventional fossil diesel and biodiesel based on the experiments in this work.

Dolanimi Ogunkoya; William L. Roberts; Tiegang Fang; Nirajan Thapaliya

2015-01-01T23:59:59.000Z

128

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...

129

A two-component heavy fuel oil evaporation model for CFD studies in marine Diesel engines  

Science Journals Connector (OSTI)

Abstract The paper presents an evaporation model for Heavy Fuel Oil (HFO) combustion studies. In the present work, HFO is considered as a mixture of a heavy and a light fuel component, with the thermophysical properties of the heavy component calculated from the recently introduced model of Kyriakides et al. (2009) [1]. The model proposes a proper treatment of convective heat transfer to the evaporating fuel droplets. Computational Fluid Dynamics (CFD) simulations of HFO spray combustion in constant volume chambers are performed, utilizing a modified characteristic time combustion model. The results are in good agreement with literature experimental data. Computational results for a two-stroke marine Diesel engine also compare favorably against experiments. The present development yields a basis for detailed CFD studies of HFO combustion in large marine Diesel engines.

Nikolaos Stamoudis; Christos Chryssakis; Lambros Kaiktsis

2014-01-01T23:59:59.000Z

130

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

131

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

132

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

133

Comparative Study on Engine Performance and Diesel Emissions with European Diesel Fuel (DF)?Diethylene Glycol Dimethyl Ether (DGM) and Fischer?Tropsch (FT)?DGM Blends  

Science Journals Connector (OSTI)

† Department of Energy and Process Engineering ... The general picture of the methyl- and methylene-related vibrations in the DF used here confirms the results of the GC analyses; i.e., that the DF resembles a n-alkane-dominated hydrocarbon mixture. ... To investigate influences of fuel design on regulated and non-regulated emissions of heavy-duty diesel engines, a Mercedes-Benz OM 906 Euro 3 engine was run with common diesel fuel (DF), first- and second-generation alternative fuels (Gas-to-liq. ...

Md. Nurun Nabi; Rudolf Schmid; Johan Einar Hustad

2010-03-30T23:59:59.000Z

134

Dual Fuel Conversion System for Diesel Engines: Inventions and Innovation Project Fact Sheet  

SciTech Connect (OSTI)

Project fact sheet written for the Inventions and Innovation Program about a new dual fuel conversion system allows diesel fuel switching with clean burning natural gas.

Wogsland, J.

2001-01-25T23:59:59.000Z

135

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

136

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

137

Effect of Gas-to-Liquid Diesel Fuels on Combustion Characteristics, Engine Emissions, and Exhaust Gas Fuel Reforming. Comparative Study  

Science Journals Connector (OSTI)

School of Engineering, Mechanical and Manufacturing Engineering, University of Birmingham, Birmingham B15 2TT, U.K., Shell Global Solutions, Cheshire Innovation Park, Chester CH1 3SH, U.K., Mechanical Engineering, School of Engineering and Design, Brunel University, West London, Uxbridge UB8 3PH, U.K., and Johnson Matthey Technology Centre, Blount's Court, Sonning Common, Reading RG4 9NH, U.K. ... Clearly, the general trend is toward higher efficiency engines and improved fuel economy, something that puts current technology spark ignition (SI) engines in a relatively weak position compared to compression ignition (CI) engines. ... As the diesel engine used in this study was equipped with a pump-line-nozzle-type fuel injection system, all the observed effects may not apply to common rail or unit injection equipped engines. ...

A. Abu-Jrai; A. Tsolakis; K. Theinnoi; R. Cracknell; A. Megaritis; M. L. Wyszynski; S. E. Golunski

2006-10-18T23:59:59.000Z

138

Dual-fuel natural gas/diesel engines: Technology, performance, and emissions. Topical report, February 1993-November 1994  

SciTech Connect (OSTI)

An investigation of current dual-fuel natural gas/diesel engine design, performance, and emissions was conducted. The most pressing technological problems associated with dual-fuel engine use were identified along with potential solutions. It was concluded that dual-fuel engines can achieve low NOx and particulate emissions while retaining fuel-efficiency and BMEP levels comparable to those of diesel engines. The investigation also examined the potential economic impact of dual-fuel engines in diesel-electric locomotives, marine vessels, farm equipment, construction, mining, and industrial equipment, and stand-alone electricity generation systems. Recommendations for further additional funding to support research, development, and demonstration in these applications were then presented.

Turner, S.H.; Weaver, C.S.

1994-11-01T23:59:59.000Z

139

Properties and performance of cotton seed oil–diesel blends as a fuel for compression ignition engines  

Science Journals Connector (OSTI)

This paper presents the evaluation of properties of straight vegetable cotton seed oil (CSO) and its blends with diesel fuel in various proportions to evaluate the performance and emission characteristics of a single cylinder compression ignition (CI) engine at constant speed of 1500 rev ? min . Diesel and CSO oil fuel blends (10% 30% 50% and 70%) were used to conduct engine performance and smoke emission tests at varying loads of 0% 20% 40% 60% 80% and 100% of full load in addition to their straight CSO and diesel fuel. The performance parameters of brake specific energy consumption (BSFC) brake thermal efficiency (BTE) mechanical efficiency (ME) exhaust gas temperature (EGT) and exhaust emission (smoke) were evaluated to find the optimum CSO and diesel fuel blend. From the experimental results the CSO10D90 blend fuel showed 3.7% reduction in BSFC 1.7% increase in BTE 6.7% increase in ME and 21.7% reduction in the smoke emissions in comparison with conventional diesel operated engine. Finally it is concluded that CSO10D90 can be used straight away in CI engines without any major modifications to the engine as it showed good performance and improved emission compared to all other fuels tested for the entire range of engine operation in comparison with diesel.

B. Murali Krishna; J. M. Mallikarjuna

2009-01-01T23:59:59.000Z

140

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

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


141

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...

142

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...

143

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 consumption Diesel fuel cost Lubricant cost Engine

2002-01-01T23:59:59.000Z

144

Fueling U.S. Light Duty Diesel Vehicles | Department of Energy  

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

Fueling U.S. Light Duty Diesel Vehicles Fueling U.S. Light Duty Diesel Vehicles 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

145

Effects of a Combustion Improver on Diesel Engine Performance and Emission Characteristics When Using Three-Phase Emulsions as an Alternative Fuel  

Science Journals Connector (OSTI)

The application of an emulsification technique to prepare the fuel has been considered to be one of the possible approaches to reduce the production of diesel engine pollutants, as well as the rate of fuel consumption. ... 8 The effects on engine performance and emission characteristics of diesel engines when using diglyme as an oxygenated additive for diesel fuels, W/O emulsions, and O/W/O emulsions are studied in this paper. ... A lower oxygen component was consumed for burning the O/W/O diesel emulsion, leading to a larger excess-oxygen concentration in the exhaust gas, compared to that of neat diesel fuel, as shown in Figure 7. ...

Cherng-Yuan Lin; Kuo-Hua Wang

2004-01-28T23:59:59.000Z

146

Emission Performance of Modern Diesel Engines Fueled with Biodiesel  

Broader source: Energy.gov [DOE]

This study presents full quantification of biodiesel's impact on emissions and fuel economy with the inclusion of DPF regeneration events.

147

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 &...

148

Antiwear properties of water-fuel emulsions for marine diesel engines  

SciTech Connect (OSTI)

Water-fuel emulsions (WFEs) were prepared by hydrodynamic mixing of fuel, water and additive. The physicochemical characteristics of the WFE with 20% water were analyzed and the tests were performed in an MI-1 friction tester and in a 1 Ch 10.5/13 test-stand diesel; rubbing parts made of ShKh15 steel were in the tester. Engine test results show that introduction of water into fuel gives an increase in the rate of wear. With the introduction of 0.03% synthetic fatty acid still residues, the fuel consumption in the 2 Ch 8.5/11 engine is reduced by approximately 2% over a certain period of time.

Danilov, A.M.; Selyagina, A.A.; Karyakin, K.B.; Gorbachev, Yu.A.

1988-03-01T23:59:59.000Z

149

Abrasive wear by coal-fueled diesel engine and related particles  

SciTech Connect (OSTI)

The development of commercially viable diesel engines that operate directly on pulverized coal-fuels will require solution to the problem of severe abrasive wear. The purpose of the work described in this report was to investigate the nature of the abrasive wear problem. Analytical studies were carried out to determine the characteristics of the coal-fuel and associated combustion particles responsible for abrasion. Laboratory pinon-disk wear tests were conducted on oil-particle mixtures to determine the relationship between wear rate and a number of different particle characteristics, contact parameters, specimen materials properties, and other relevant variables.

Ives, L.K. [National Inst. of Standards and Technology, Gaithersburg, MD (United States)

1992-09-01T23:59:59.000Z

150

Investigating the Effect of Engine Lubricant Viscosity on Engine Friction and Fuel Economy of a Diesel Engine.  

E-Print Network [OSTI]

??Fuel economy is affected, both by fuel and engine lubricant quality. Engine lubricant quality plays a vital role in reduction of fuel consumption by effective… (more)

Singh, Devendra

2011-01-01T23:59:59.000Z

151

Experimental investigation of DI diesel engine operating with eucalyptus biodiesel/natural gas under dual fuel mode  

Science Journals Connector (OSTI)

Abstract With the gradual depletion of petroleum and environmental degradation, intensive research activity has been addressed to the utilization of alternative fuels in internal combustion engines. In the present work, an experimental investigation is carried out to study the effect of eucalyptus biodiesel and natural gas under dual fuel combustion mode on the performance and the exhaust emissions of a single cylinder DI diesel engine. The natural gas (NG) is inducted with the intake air through the inlet manifold. The liquid pilot fuel (eucalyptus biodiesel or diesel fuel) is injected into the combustion chamber to cover approximately 10% of the maximum power output. Then, keeping constant the pilot fuel flow rate, the power output is further increased using only natural gas. The combustion characteristics (cylinder pressure, ignition delay and heat release rate), performance and exhaust emissions of the dual fuel mode (NG–diesel fuel and NG–biodiesel) are compared with those of conventional diesel engine mode at various load conditions. The combustion analysis has shown that biodiesel as pilot fuel exhibits similar pressure–time history, with highest peak, as diesel fuel in conventional and dual fuel modes. The performance and pollutant emission results show that, compared to diesel fuel in dual fuel mode, the use of eucalyptus biodiesel as pilot fuel reduces the high emission levels of unburned hydrocarbon (HC), carbon monoxide (CO) and carbon dioxide (CO2) particularly at high engine loads. However this is accompanied by an increase in the brake specific fuel consumption (BSFC) and the nitrogen oxide (NOx) emissions, which can be explained by the lower calorific value and the oxygen presence in the molecule of the eucalyptus biodiesel, respectively.

L. Tarabet; K. Loubar; M.S. Lounici; K. Khiari; T. Belmrabet; M. Tazerout

2014-01-01T23:59:59.000Z

152

New Feedstocks and Replacement Fuel Diesel Engine Challenges...  

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

and 21st Century Truck Programs. 2006deerfulton.pdf More Documents & Publications BiodieselFuelManagementBestPracticesReport.pdf Vehicle Technologies Office: 2008-2009...

153

Experimental Investigation in Optimizing the Hydrogen Fuel on a Hydrogen Diesel Dual-Fuel Engine  

Science Journals Connector (OSTI)

Lee et al.(8) studied the performance of a dual-injection hydrogen-fueled engine by using solenoid in-cylinder injection and an external fuel injection technique. ... Zuohua, H.; Jinhua, W.; Bing, L.; Ke, Z.; Jinrong, Y.; Deming, J. Combustion Characteristics of a Direct-Injection Engine Fueled with Natural Gas-Hydrogen Mixtures Energy Fuels 2006, 20 ( 2) 540– 546 ... Timed manifold injection (TMI) has the potential of being the most appropriate fueling strategy. ...

N. Saravanan; G. Nagarajan

2009-04-10T23:59:59.000Z

154

Optimization of combustion performance and emission of Jatropha biodiesel in a turbocharged LHR diesel engine;.  

E-Print Network [OSTI]

??Bio-diesel derived from the vegetable oils are identified as an excellent alternate fuel for petroleum based diesel fuel used in diesel engines. However, the performance… (more)

Rajendra Prasath B

2013-01-01T23:59:59.000Z

155

Wear mechanism and wear prevention in coal-fueled diesel engines  

SciTech Connect (OSTI)

Coal fueled diesel engines present unique wear problems in the piston ring/cylinder liner area because of their tendency to contaminate the lube-oil with high concentrations of highly abrasive particles. This program involved a series of bench-scale wear tests and engine tests designed to investigate various aspects of the ring/liner wear problem and to make specific recommendations to engine manufacturers as to how to alleviate these problems. The program was organized into tasks, designed to accomplish the following objectives: (1) define the predominant wear mechanisms causing accelerated wear in the ring/liner area; (2) investigate the effectiveness of traditional approaches to wear prevention to prevent wear in coal-fueled engines; (3) further refine information on the most promising approaches to wear prevention; (4) present detailed information and recommendations to engine manufacturers on the most promising approach to wear prevention; (5) present a final report covering the entire program; (6)complete engine tests with a coal-derived liquid fuel, and investigate the effects of the fuel on engine wear and emissions.

Schwalb, J.A.; Ryan, T.W.

1991-10-01T23:59:59.000Z

156

Wear mechanism and wear prevention in coal-fueled diesel engines. Final report  

SciTech Connect (OSTI)

Coal fueled diesel engines present unique wear problems in the piston ring/cylinder liner area because of their tendency to contaminate the lube-oil with high concentrations of highly abrasive particles. This program involved a series of bench-scale wear tests and engine tests designed to investigate various aspects of the ring/liner wear problem and to make specific recommendations to engine manufacturers as to how to alleviate these problems. The program was organized into tasks, designed to accomplish the following objectives: (1) define the predominant wear mechanisms causing accelerated wear in the ring/liner area; (2) investigate the effectiveness of traditional approaches to wear prevention to prevent wear in coal-fueled engines; (3) further refine information on the most promising approaches to wear prevention; (4) present detailed information and recommendations to engine manufacturers on the most promising approach to wear prevention; (5) present a final report covering the entire program; (6)complete engine tests with a coal-derived liquid fuel, and investigate the effects of the fuel on engine wear and emissions.

Schwalb, J.A.; Ryan, T.W.

1991-10-01T23:59:59.000Z

157

New Feedstocks and Replacement Fuel Diesel Engine Challenges  

Broader source: Energy.gov [DOE]

Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs.

158

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

159

A photographic study of the combustion of low cetane fuels in a Diesel engine aided with spark assist  

SciTech Connect (OSTI)

An experimental investigation of the ignition and combustion characteristics of two low cetane fuels in a spark assisted Diesel engine is described. A three cylinder Diesel engine was modified for single cylinder operation and fitted with a spark plug located in the periphery of the spray plume. Optical observations of ignition and combustion were obtained with high speed photography. Optical access was provided by a quartz piston crown and extended head arrangement. The low cetane fuels, a light end, low viscosity fuel and a heavy end, high viscosity fuel which were blended to bracket No. 2 Diesel fuel on the distillation curve, demonstrated extended operation in the modified Diesel engine. Qualitative and quantitative experimental observations of ignition delay, pressure rise, heat release, spray penetration and geometery were compared and evaluated against theoretical predictions. Results indicate that controlled combustion of extended fuel blends in a Diesel engine may be possible without inlet air preconditioning and that engine knock may be avoided when heat release is optimized with proper spark and injection timing.

Abata, D.L.; Fritz, S.G.; Stroia, B.J.

1986-01-01T23:59:59.000Z

160

Development and Validation of a NOx Emission Testing Setup for a Diesel Engine, Fueled with Bio-Diesel.  

E-Print Network [OSTI]

??The increasing concerns related to long term availability of petroleum-based fuels and the emissions from diesel-powered vehicles have given rise to a growing search for… (more)

Kohli, Dhruv

2009-01-01T23:59:59.000Z

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


161

(Wear mechanism and wear prevention in coal-fueled diesel engines)  

SciTech Connect (OSTI)

The overall objectives of this program is to develop the engine and lubricant system design approach that has the highest probability for commercial acceptance. Several specific objectives can also be identified. These objectives include: definition of the dominant wear mechanisms prevailing in coal-fueled diesel engines; definition of the specific effect of each coal-related lube oil contaminant; determination of the potential of traditional engine lubrication design approaches to either solve or mitigate the effects of the coal related lube oil contaminants; evaluation of several different engine design approaches aimed specifically at preventing lube oil contamination or preventing damage due to lube oil contamination; and presentation of the engine/lubricant system and design determined to have the most potential. 2 figs., 3 tabs.

Not Available

1989-09-15T23:59:59.000Z

162

Diesel Engine Idling Test  

SciTech Connect (OSTI)

In support of the Department of Energy’s 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

163

Performance Evaluation of Fuel Blends Containing Croton Oil, Butanol, and Diesel in a Compression Ignition Engine  

Science Journals Connector (OSTI)

† Department of Mechanical Engineering, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa ... (2) The use of vegetable oils in diesel engines is as old as the diesel engine itself. ... The results indicate a general increase in NOx emissions as the load increases at a steady engine speed. ...

Frank Lujaji; Akos Bereczky; Makame Mbarawa

2010-07-15T23:59:59.000Z

164

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)...

165

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

E-Print Network [OSTI]

fact that the diesel engines fuel consumption and emissionsDiesel Modal Emissions and Fuel Consumption Model Connection to engineDiesel Modal Emissions and Fuel Consumption Model unit; 5) engine-

Barth, Matthew; Younglove, Theodore; Scora, George

2005-01-01T23:59:59.000Z

166

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

167

Prediction of the Effects of Ethanol-Diesel Fuel Blends on Diesel Engine Performance Characteristics, Combustion, Exhaust Emissions, and Cost  

Science Journals Connector (OSTI)

Bilgin et al.’s and ?ahin’s experimental studies which have been used in comparisons with numerical results of the present model have been performed in a single cylinder diesel engine at Karadeniz Technical University, Engineering Faculty Mechanical Engineering Department Internal Combustion Engines Laboratory. ... Durgun, O. A practical method for calculation engine cycles Union of Chambers of Turkish Engineers and Architects, Chamber of Mech. ... Dieselhols (blends of diesels, biodiesels, and alcohols) have received considerable attention because of their low emission of CO2. ...

Z. ?ahin; O. Durgun

2009-02-10T23:59:59.000Z

168

Effect of the Addition of Diglyme in Diesel Fuel on Combustion and Emissions in a Compression?Ignition Engine  

Science Journals Connector (OSTI)

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 changes in combustion systems. ... 16 Mitsuo et al.17 investigated the effects of DGM on engine exhaust emissions in three different diesel engines. ... (18)?Heywood, J. B. Internal Combustion Engine Fundamentals; McGraw-Hill Book Company, New York, 1988. ...

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

2007-07-17T23:59:59.000Z

169

Exhaust emissions characteristics of a multi-cylinder 18.1-L diesel engine converted to fueled with natural gas and diesel pilot  

Science Journals Connector (OSTI)

Abstract A six-cylinder, turbocharged and aftercooled diesel engine was converted to operate with natural gas and diesel pilot for generator application. The flow of natural gas was electronically controlled using a throttle valve, and it was pre-mixed with air before being introduced into the combustion chambers. The aim of this work was to study the exhaust emissions characteristics under diesel and dual fuel operations at different operating conditions. Exhaust emissions of total hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx), soot, particulate matter and carbon dioxide were measured at different loads. This work also presents the effects of diesel oxidation catalyst on HC and CO conversions under dual fuel operation. Results showed that \\{NOx\\} emission was reduced at all operating loads under dual fuel operation compared to diesel operation. HC and CO emissions were increased under dual fuel operation, but their concentrations were considerably reduced with oxidation catalyst. Contrary to conventional wisdom, it was found that soot and particulate matter were increased under dual fuel operation compared to diesel operation.

Mayank Mittal; Ron Donahue; Peter Winnie; Allen Gillette

2014-01-01T23:59:59.000Z

170

Innovative coal-fueled diesel engine injector. Final report  

SciTech Connect (OSTI)

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

Badgley, P.; Doup, D.

1991-05-01T23:59:59.000Z

171

Wear mechanism and wear prevention in coal-fueled diesel engines  

SciTech Connect (OSTI)

The overall objective of this program is to develop the engine and lubricant system design approach that has the highest probability for commercial acceptance. Several specific objectives can also be identified. These objectives include: definition of the dominant wear mechanisms prevailing in coal-fueled diesel engines; definition of the specific effect of each coal-related lube oil contaminant; determination of the potential of traditional engine lubrication design approaches to either solve or mitigate the effects of the coal related lube oil contaminants; evaluation of several different design approaches aimed specifically at preventing lube oil contamination or preventing damage due to lube oil contamination; and presentation of the engine/lubricant system design determined to have the most potential. 2 figs., 3 tabs.

Not Available

1990-02-19T23:59:59.000Z

172

Evaluation of improved materials for stationary diesel engines operating on residual and coal based fuels. Final report  

SciTech Connect (OSTI)

Experimental results to date from an on-going research program on improved materials for stationary diesel engines using residual or coal-based fuels are presented with little discussion of conclusions about these results. Information is included on ring and liner wear, fuel oil qualities, ceramic materials, coatings, test procedures and equipment, and tribology test results. (LCL)

Not Available

1980-01-01T23:59:59.000Z

173

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

174

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

175

Coal-fueled high-speed diesel engine development. Final report, September 28, 1990--November 30, 1993  

SciTech Connect (OSTI)

The goal of this program was to study the feasibility of operating a Detroit Diesel Series 149 engine at high speeds using a Coal-Water-Slurry (CWS) fuel. The CWS-fueled 149 engine is proposed for the mine-haul off-highway truck and work boat marine markets. Economic analysis studies indicate that, for these markets, the use of CWS fuel could have sufficient operating cost savings, depending upon the future diesel fuel price, emission control system capital and operating costs, and maintenance and overhaul costs. A major portion of the maintenance costs is expected to be due to lower life and higher cost of the CWS injectors. Injection and combustion systems were specially designed for CWS, and were installed in one cylinder of a Detroit Diesel 8V-149TI engine for testing. The objective was to achieve engine operation for sustained periods at speeds up to 1,900 rpm with reasonable fuel economy and coal burnout rate. A computer simulation predicted autoignition of coal fuel at 1,900 rpm would require an average droplet size of 18 microns and 19:1 compression ratio, so the injection system, and pistons were designed accordingly. The injection system was capable of supplying the required volume of CWS/injection with a duration of approximately 25 crank angle degrees and peak pressures on the order of 100 mpa. In addition to the high compression ratio, the combustion system also utilized hot residual gases in the cylinder, warm inlet air admission and ceramic insulated engine components to enhance combustion. Autoignition of CWS fuel was achieved at 1900 rpm, at loads ranging from 20--80 percent of the rated load of diesel-fuel powered cylinders. Limited emissions data indicates coal burnout rates in excess of 99 percent. NO{sub x} levels were significantly lower, while unburned hydrocarbon levels were higher for the CWS fueled cylinder than for corresponding diesel-fuel powered cylinders.

Kakwani, R.M.; Winsor, R.E.; Ryan, T.W. III; Schwalb, J.A.; Wahiduzzaman, S.; Wilson, R.P. Jr.

1993-09-01T23:59:59.000Z

176

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

177

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

178

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 biodiesel–fueled 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

179

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

180

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

E-Print Network [OSTI]

??In the wake of global warming and fossil fuel depletion, renewed attention has been paid to shifting away from the use of petroleum based fuels.… (more)

Esquivel, Jason

2010-01-01T23:59:59.000Z

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


181

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

182

Engine performance and emissions from the combustion of low-temperature Fischerâ??Tropsch synthetic diesel fuel and biodiesel rapeseed methyl ester blends  

Science Journals Connector (OSTI)

The combustion of oxygenated biodiesel (rapeseed methyl ester (RME)) improves the engine-out particulate matter, hydrocarbon and carbon monoxide (CO) emissions, while the low-temperature Fischerâ??Tropsch synthetic paraffinic diesel fuel improves engine-out NOx, CO, hydrocarbon and particulate matter emissions. Blending synthetic diesel (SD) fuel with oxygenated biodiesel could unlock potential performance synergies in the fuel properties (e.g. O2 content in RME and high cetane number of the synthetic fuels) of such blends and benefit engine performance and emissions. The combustion of synthetic diesel fuel/RME blend, named synthetic diesel B50, has shown similar combustion characteristics to diesel fuel, while simultaneous improvements in engine efficiency and smoke-NOx trade-off were achieved by taking advantage of the fuel's properties. The engine thermal efficiency was dependent on the fuel type, and followed the general trend: synthetic diesel > SDB50 > diesel > RME. Therefore, it has been shown that the design of a synthetic fuel with properties similar to the fuel blends presented in this work could improve engine-out NOx, smoke and hydrocarbon emissions and maintain or improve engine performance.

Kampanart Theinnoi; Athanasios Tsolakis; Sathaporn Chuepeng; Andrew P.E. York; Roger F. Cracknell; Richard H. Clark

2009-01-01T23:59:59.000Z

183

Development of OTM Syngas Process and Testing of Syngas Derived Ultra-clean Fuels in Diesel Engines and Fuel Cells  

SciTech Connect (OSTI)

This final report summarizes work accomplished in the Program from January 1, 2001 through December 31, 2004. Most of the key technical objectives for this program were achieved. A breakthrough material system has lead to the development of an OTM (oxygen transport membrane) compact planar reactor design capable of producing either syngas or hydrogen. The planar reactor shows significant advantages in thermal efficiency and a step change reduction in costs compared to either autothermal reforming or steam methane reforming with CO{sub 2} recovery. Syngas derived ultra-clean transportation fuels were tested in the Nuvera fuel cell modular pressurized reactor and in International Truck and Engine single cylinder test engines. The studies compared emission and engine performance of conventional base fuels to various formulations of ultra-clean gasoline or diesel fuels. A proprietary BP oxygenate showed significant advantage in both applications for reducing emissions with minimal impact on performance. In addition, a study to evaluate new fuel formulations for an HCCI engine was completed.

E.T. Robinson; John Sirman; Prasad Apte; Xingun Gui; Tytus R. Bulicz; Dan Corgard; John Hemmings

2005-05-01T23:59:59.000Z

184

Effect of the use of olive–pomace 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 olive–pomace 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, olive–pomace 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 olive–pomace 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. López; C.E. Quintana; J.J. Ruiz; F. Cruz-Peragón; M.P. Dorado

2014-01-01T23:59:59.000Z

185

Kinetic Modeling Study of the Ignition Process of Homogeneous Charge Compression Ignition Engine Fueled with Three-Component Diesel Surrogate  

Science Journals Connector (OSTI)

School of Energy & Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ... Such a computational study is also expected to provide insight into the fundamental understanding of the choice of neat constituents for the surrogate mixture and their relative proportions. ... The present study proposes surrogate models for the nine fuels for advanced combustion engines (FACE) that have been developed for studying low-emission, high-efficiency advanced diesel engine concepts. ...

Gan Xiao; Yusheng Zhang; Jing Lang

2013-02-11T23:59:59.000Z

186

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 2800 rpm, 3200 rpm and 3600 rpm 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 3.3–4.2% at light engine load of 0.12 MPa and 2.0–2.4% at heavy engine load of 0.4 MPa 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

187

Flammability of diesel fuels with various compositions  

SciTech Connect (OSTI)

This paper reports on a study of the flammability of a number of fuels and blends, in relation to their physicochemical properties, particularly the volatility; these studies were performed in a specially designed simulator. The following fuels were used in the studies: a hydrotreated straight-run diesel fuel L; a catalytic gas oil; diesel fuel A; blends of diesel fuels L and A with cetaine, alpha-methylnaphthalene, undecane, and docosane; and a blend of fuel L, A-72 gasoline, and the additive TsGN. The physicochemical properties of the test fuels are shown. It is shown that the flammability of fuels with various compositions in a diesel engine is more correctly evaluated on the basis of the ignition delay period, which can be calculated from the cetane number and other physicochemical property indexes of fuels for a particular set of engine operating conditions.

Gureev, A.A.; Kamfer, G.M.; Prigul'skii, G.B.

1986-09-01T23:59:59.000Z

188

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

189

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

190

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

E-Print Network [OSTI]

that the diesel engines fuel consumption and emissions doEmissions and Fuel Consumption Model engine manufacturersEmissions and Fuel Consumption Model Connection to engine

Barth, Matthew; Younglove, Theodore; Scora, George

2005-01-01T23:59:59.000Z

191

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

192

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

193

Impact of Fuel-Borne Catalysts on Diesel Aftertreatment | Department...  

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

Fuel-Borne Catalyst Assisted DPF regeneration on a Renault truck MD9 Engine Outfitted with SCR Fuel Additivies for Improved Performance of Diesel Aftertreatment Systems...

194

Diesel fuel containing a tetrazole or triazole cetane improver  

SciTech Connect (OSTI)

This patent describes a liquid fuel adapted for use in a diesel engine containing a cetane number increasing amount of at least one fuel soluble additive compound.

Martella, D.J.

1986-12-30T23:59:59.000Z

195

Response of Oil Sands Derived Fuels in Diesel HCCI Operation  

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

Response of Oil Sands Derived Fuels in Diesel HCCI Operation Bruce G. Bunting senior staff scientist Fuels, Engines, and Emissions Research Center 2007 DOE DEER Conference...

196

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

197

Abrasive wear by diesel engine coal-fuel and related particles  

SciTech Connect (OSTI)

The purpose of the work summarized in this report was to obtain a basic understanding of the factors which are responsible for wear of the piston ring and cylinder wall surfaces in diesel engines utilizing coal-fuel. The approach included analytical studies using scanning electron microscopy and energy dispersive x-ray analyses to characterize coal-fuel and various combustion particles, and two different wear tests. The wear tests were a modified pin-on-disk test and a block-on-ring test capable of either unidirectional or reciprocating-rotational sliding. The wear tests in general were conducted with mixtures of the particles and lubricating oil. The particles studied included coal-fuel, particles resulting from the combustion of coal fuel, mineral matter extracted during the processing of coal, and several other common abrasive particle types among which quartz was the most extensively examined. The variables studied included those associated with the particles, such as particle type, size, and hardness; variables related to contact conditions and the surrounding environment; and variables related to the type and properties of the test specimen materials.

Ives, L.K. [National Inst. of Standards and Technology, Gaithersburg, MD (United States)

1994-09-01T23:59:59.000Z

198

Impact of thermal barrier coating application on the combustion, performance and emissions of a diesel engine fueled with waste cooking oil biodiesel–diesel blends  

Science Journals Connector (OSTI)

Abstract Biodiesel fuel was produced from waste cooking oil by transesterification process. B20 and B50 blends of biodiesel–petroleum diesel were prepared. These blends and D2 fuels were tested in a single cylinder CI engine. Performance, combustion and emission values of the engine running with the mentioned fuels were recorded. Then the piston and both exhaust and intake valves of the test engine were coated with layers of ceramic materials. The mentioned parts were coated with 100 ?m of NiCrAl as lining layer. Later the same parts were coated with 400 ?m material of coating that was the mixture of 88% of ZrO2, 4% of MgO and 8% of Al2O3. After the engine coating process, the same fuels were tested in the coated engine at the same operation condition. Finally, the same engine out parameters were obtained and compared with those of uncoated engine parameters in order to find out how this modification would change the combustion, performance and emission parameters. Results showed that the modification of the engine with coating process resulted in better performance, especially in considerably lower brake specific fuel consumption (Bsfc) values. Besides, emissions of the engine were lowered both through coating process and biodiesel usage excluding the nitrogen oxides (NOx) emission. In addition, the results of the coated engine are better than the uncoated one in terms of cylinder gas pressure, heat release rate (HRR) and heat release (HR).

Selman Ayd?n; Cenk Say?n

2014-01-01T23:59:59.000Z

199

The use of auxiliary ignition devices to improve combustion of low centane-high volatility fuels in a diesel engine  

SciTech Connect (OSTI)

The use of auxiliary ignition devices to improve the combustion of low cetane-high volatility fuels in a Diesel engine is described. Previous combustion with a low cetane-high volatility fuel (with a spark plug located at the periphery of the cylinder) resulted in engine knock at heavy loads and poor engine operation at light loads. In the present investigation, several new ignition devices were used to ignite the fuel in the center of the cylinder, to allow combustion to be controlled by rate of injection. The devices used were an extended spark electrode, a fuel spray deflector, a nozzle glow ring, and a nozzle fuel cage. High speed photography and heat release were used to characterize the ignition and combustion process of the low cetane fuel in conjunction with the ignition devices. Combustion with all of the ignition devices was initiated in the center of the cylinder, significantly reducing engine knock. The use of the auxiliary ignition devices to ignite the fuel in the center of the chamber demonstrated extended operation of the Diesel engine for all of the devices tested.

Stroia, B.L.; Abata. D.L.

1988-01-01T23:59:59.000Z

200

Recycling used palm oil and used engine oil to produce white bio oil, bio petroleum diesel and heavy fuel  

Science Journals Connector (OSTI)

Recycling waste materials produced in our daily life is considered as an additional resource of a wide range of materials and it conserves the environment. Used engine oil and used cooking oil are two oils disposed off in large quantities as a by-product of our daily life. This study aims at providing white bio oil bio petroleum diesel and heavy fuel from the disposed oils. Toxic organic materials suspected to be present in the used engine oil were separated using vacuum column chromatography to reduce the time needed for the separation process and to avoid solvent usage. The compounds separated were detected by gas chromatography-mass spectrometry (GC-MS) and found to contain toxic aromatic carboxylic acids. Used cooking oils (thermally cracked from usage) were collected and separated by vacuum column chromatography. White bio oil produced was examined by GC-MS. The white bio oil consists of non-toxic hydrocarbons and is found to be a good alternative to white mineral oil which is significantly used in food industry cosmetics and drugs with the risk of containing polycyclic aromatic compounds which are carcinogenic and toxic. Different portions of the used cooking oil and used engine were mixed to produce several blends for use as heavy oil fuels. White bio oil was used to produce bio petroleum diesel by blending it with petroleum diesel and kerosene. The bio petroleum diesel produced passed the PETRONAS flash point and viscosity specification test. The heat of combustion of the two blends of heavy fuel produced was measured and one of the blends was burned to demonstrate its burning ability. Higher heat of combustion was obtained from the blend containing greater proportion of used engine oil. This study has provided a successful recycled alternative for white bio oil bio petroleum fuel and diesel which can be an energy source.

Mustafa Hamid Al-abbas; Wan Aini Wan Ibrahim; Mohd. Marsin Sanagi

2012-01-01T23:59:59.000Z

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


201

Advanced Petroleum-Based Fuels - Diesel Emissions Project (APBF-DEC): 2,000-Hour Performance of a NOx Adsorber Catalyst and Diesel Particle Filter System for a Medium-Duty, Pick-Up Diesel Engine Platform; Final Report  

SciTech Connect (OSTI)

Presents the results of a 2,000-hour test of an emissions control system consisting of a nitrogen oxides adsorber catalyst in combination with a diesel particle filter, advanced fuels, and advanced engine controls in an SUV/pick-up truck vehicle platform.

Not Available

2007-03-01T23:59:59.000Z

202

Low-Load Dual-Fuel Compression Ignition (CI) Engine Operation with an On-Board Reformer and a Diesel Oxidation Catalyst: Effects on Engine Performance and Emissions  

Science Journals Connector (OSTI)

Ideally, homogeneous air fuel mixtures ignited spontaneously exhibit less pollutants and can improve engine efficiency compared to standard diesel combustion, which is based on diffusion combustion. ... Although optimization of the injection timing of the in-cylinder DI fuel (e.g., diesel) aims to ignite the mixture and control the start of combustion (SOC) for the different premixed fuel ratios, the fuel ignition timing is complicated and problematic for a dual-fueled engine under a number of engine-operating conditions (e.g., low loads and use of residual gas trapping). ... Deactivation due to coking of a single Ni/Pt-based catalyst is significant, but operation using a platinum-ceria catalyst in line with a Ni-based steam-reforming catalyst allows acceptable efficiencies. ...

A. Tsolakis; R. Torbati; A. Megaritis; A. Abu-Jrai

2009-10-07T23:59:59.000Z

203

Reducing the Emission of Particles from a Diesel Engine by Adding an Oxygenate to the Fuel  

Science Journals Connector (OSTI)

A small reduction of the engine power was also observed; however, the net effect was nevertheless a reduction in the emission of CO2 per European stationary cycle. ... A general finding is that the reduction of particles seems to be linearly dependent on the oxygen content, and, thus, the blend with the highest oxygen content results in the highest reduction of particles (14?16). ... Measure ments of NOx, HC, and CO content were performed in accordance with the ESC test cycles and were repeated nine times when the engine was operating on EC-1 diesel and five times when the engine was operating on A-diesel. ...

Kent E. Nord; Dan Haupt

2005-07-09T23:59:59.000Z

204

Demonstrating Fuel Consumption and Emissions Reductions with Next Generation Model-Based Diesel Engine Control  

Broader source: Energy.gov [DOE]

Presents a next generation model-based engine controller that incorporates real-time fuel efficiency optimization and tested under fully transient engine and vehicle operating conditions.

205

Fuel Effects on Low Temperature Combustion in a Light-Duty Diesel Engine  

Broader source: Energy.gov [DOE]

Six different fuels were investigated to study the influence of fuel properties on engine out emissions and performance of low temperature premixed compression ignition combustion light-duty HSDI engines

206

Mathematical modeling for the performance and emission parameters of dual fuel diesel engine using hydrogen as secondary fuel  

Science Journals Connector (OSTI)

Abstract In this work, mathematical models were developed to correlate the brake thermal efficiency, un-burnt hydrocarbons, carbon monoxides and oxides of nitrogen by varying engine parameters like Load and Gaseous (H2) fuel substitution. The developed models can be used to predict the important performance and emission parameters for diesel-hydrogen operation in various combinations at different loads within the experimental domain. Response surface methodology (RSM) has been applied for developing the models using the techniques of design of experiments and multi linear regression analysis. General factorial design was used to plan the experiments. Second order response surface models were found to be the most suitable in the present work. Analysis of variance (ANOVA) of the experimental results at 95% confidence level revealed that the developed models are significant. Comparison of experimental output with those predicted by the developed models showed close proximity having high correlation coefficients R2 for the various response variables.

A.E. Dhole; R.B. Yarasu; D.B. Lata; S.S. Baraskar

2014-01-01T23:59:59.000Z

207

Evaluation of RME (rapeseed methyl ester) and mineral diesel fuels behaviour in quiescent vessel and EURO 5 engine  

Science Journals Connector (OSTI)

Abstract Alternative diesel fuels for internal combustion engines have grown significantly in interest in the last decade. This is due to the potential benefits in pollutant emissions and particulate matter reduction. Nevertheless at possible increase in nitrogen oxide (NOx), and almost certainly increase of fuel consumption have been observed. In this paper, mineral diesel and RME (rapeseed methyl ester) fuels have been characterized in a non-evaporative spray chamber and in an optically-accessible single-cylinder engine using a Common Rail injector (8 holes, 148° cone opening angle and 480 cc/30s@10 MPa flow number) to measure the spatial fuel distribution, the temporal evolution and the vaporization–combustion processes. The injection process and mixture formation have been investigated at the Urban Driving Cycle ECE R15: 1500 rpm at 0.2 MPa of break mean effective pressure. Characteristic parameters of the spray like penetration length and liquid fuel distribution have been analysed and they have been correlated with the exhaust gaseous and particulate matter emissions. In the spray-analysis in non-evaporative conditions, short events (pilot) are mostly affected by asymmetries in the fuel distributions with noticeable standard deviations at low injected quantities. In the engine tests, the jets reached immediately the stabilization. A comparative analysis on the liquid phase of the spray, in non-evaporative and evaporative conditions, has permitted to investigate better the mixture formation. Its effect on pollutant emissions has been analysed for both fuels.

Luigi Allocca; Ezio Mancaruso; Alessandro Montanaro; Luigi Sequino; Bianca Maria Vaglieco

2014-01-01T23:59:59.000Z

208

Predictive Modeling of a Homogeneous Charge Compression Ignition (HCCI) Engine with EGR Fueled with Diesel  

Science Journals Connector (OSTI)

Homogeneous charge compression ignition (HCCI) combustion integrates features of both spark ignition (SI) and compression ignition (CI) engines, obtaining a promisingly high efficiency in a diesel engine with virtually almost no NOx and soot emissions. ... The objective of the model is to simulate fundamental engine results such as combustion pressure, heat-release rate, indicated mean pressure (IMEP), gas temperature, and exhaust gas emission from easily measured engine parameters. ... Gordon, P. B. The Design and Simulation of a 4 Stroke Engine; Society of Automotive Engineers: Warrendale, PA, 1999. ...

Miguel Torres García; Fco Jiménez-Espadafor Aguilar; Elisa Carvajal Trujillo; José Antonio Becerra Villanueva

2009-09-10T23:59:59.000Z

209

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

E-Print Network [OSTI]

Diesel Engines Using Four Fuels,” Southwest Research Institute, 25. J.B.Heywood, “Internal Combustion Engine Fundamentals”,

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

2005-01-01T23:59:59.000Z

210

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

211

Performance, emission and combustion characteristics of DI diesel engine running on blends of calophyllum inophyllum linn oil (honne oil)/diesel fuel/kerosene  

Science Journals Connector (OSTI)

Kerosene (K)/diesel fuel (D)/honne oil (H) blends have a potential to improve the performance and emissions and to be alternatives to neat diesel fuel (ND) and has not been reported in the literature. Experiments have been conducted on DI diesel engine when fuelled with ND, H10 (10%H + 90%D, by volume) to H30, HK10 (10%H + 45%K + 45%D), HK20 (20%H + 40%K + 40%D) and HK30 (30%H + 35%K + 35%D). The emissions [CO, HC and smoke density (SD)] of fuel blend HK20 are found to be lowest, with CO and HC dropping significantly. The NOx level is higher with HK10 to HK30 compared to ND and H10 to H30. The brake thermal efficiency of HK10 to HK30 is almost the same and it is higher as compared to ND and H10 to H30. There is a good trade off between NOx and SD. Peak cylinder pressure and premixed combustion phase increases as kerosene content increases.

B.K. Venkanna; C. Venkataramana Reddy

2011-01-01T23:59:59.000Z

212

A novel soluble nano-catalysts in diesel–biodiesel fuel blends to improve diesel engines performance and reduce exhaust emissions  

Science Journals Connector (OSTI)

Abstract This study was aimed at synthesizing a novel soluble hybrid nanocatalyst to decrease emissions i.e., nitrogen oxide compounds (NOx), carbon monoxide (CO), unburned hydrocarbons (HC) and soot, of a DI engine fueled with diesel–biodiesel blends. Moreover, enhancement of performance parameters i.e. power, torque and fuel consumption was also simultaneously targeted. The hybrid nanocatalyst containing cerium oxide on amide-functionalized multiwall carbon nanotubes (MWCNT) was investigated using two types of diesel–biodiesel blends (B5 and B20) at three concentrations (30, 60 and 90 ppm). The results obtained revealed that high surface area of the soluble nano-sized catalyst particles and their proper distribution along with catalytic oxidation reaction resulted in significant overall improvements in the combustion reaction specially in B20 containing 90 ppm of the catalyst B20(90 ppm). More specifically, all pollutants i.e., NOx, CO, HC and soot were reduced by up to 18.9%, 38.8%, 71.4% and 26.3%, respectively, in B20(90 ppm) compared to neat B20. The innovated fuel blend also increased engine performance parameters i.e., power and torque by up to 7.81%, 4.91%, respectively, and decreased fuel consumption by 4.50%.

Mehrdad Mirzajanzadeh; Meisam Tabatabaei; Mehdi Ardjmand; Alimorad Rashidi; Barat Ghobadian; Mohammad Barkhi; Mohammad Pazouki

2015-01-01T23:59:59.000Z

213

Development of a fuel-tolerant diesel for alternative fuels  

Science Journals Connector (OSTI)

There is a growing requirement for engines operating on a wider range of fuels than when fuel supplies were more stable. The diesel engine, with its high compression ratio and absence of part-load throttling, offers high efficiency. Some widely available alternative fuels, in particular alcohol from biomass, present problems because of their low cetane number. The authors report the development of a diesel engine using a combustion system incorporating a high-energy, multi-strike spark to promote smooth combustion. Results obtained with this engine using ethanol are presented to illustrate its ability to handle fuels of very low cetane numbers.

A.W.E. Henham; R.A. Johns; S. Newnham

1991-01-01T23:59:59.000Z

214

Guidelines for Improving Diesel Engine Characteristics  

Science Journals Connector (OSTI)

An appropriate amount of EGR can improve cold startability of a diesel engine and promote combustion and emission performance during...x...emissions without a significant penalty for the specific fuel consumption

Breda Kegl; Marko Kegl; Stanislav Pehan

2013-01-01T23:59:59.000Z

215

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.

216

Characterization of Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) Using Hydrated Ethanol and Diesel Fuel  

Broader source: Energy.gov [DOE]

This study uses numerical simulations to explore the use of wet ethanol as the low-reactivity fuel and diesel as the high-reactivity fuel for RCCI operation in a heavy-duty diesel engine.

217

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

218

Application of artificial neural network to predict specific fuel consumption and exhaust temperature for a Diesel engine  

Science Journals Connector (OSTI)

The ability of an artificial neural network model, using a back propagation learning algorithm, to predict specific fuel consumption and exhaust temperature of a Diesel engine for various injection timings is studied. The proposed new model is compared with experimental results. The comparison showed that the consistence between experimental and the network results are achieved by a mean absolute relative error less than 2%. It is considered that a well-trained neural network model provides fast and consistent results, making it an easy-to-use tool in preliminary studies for such thermal engineering problems.

Adnan Parlak; Yasar Islamoglu; Halit Yasar; Aysun Egrisogut

2006-01-01T23:59:59.000Z

219

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

220

An experimental study of the effect of a homogeneous combustion catalyst on fuel consumption and smoke emission in a diesel engine  

Science Journals Connector (OSTI)

This paper presents the results of an experimental investigation into the influence of a ferrous picrate based homogeneous combustion catalyst on fuel consumption and smoke emission of a laboratory diesel engine. The catalyst used in this study was supplied by Fuel Technology Pty. Ltd. The fuel consumption and smoke emission were measured as a function of engine load, speed and catalyst dosing ratio. The brake specific fuel consumption and smoke emission decreased as the dosing ratio of the catalyst doped in the diesel fuel increased. At the catalyst dosing ratio of 1:3200, the brake specific fuel consumption was reduced by from 2.1% to 2.7% and the smoke emission was reduced by from 6.7% to 26.2% at the full engine load at speeds from 2600 rpm to 3400 rpm. The results also indicated that the potential of the fuel saving seems to be greater when the engine was run under light load.

Mingming Zhu; Yu Ma; Dongke Zhang

2011-01-01T23:59:59.000Z

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


221

Application of a Diesel Fuel Reformer for Tier 2 Bin 5 Emissions...  

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

5 Emissions 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005deerbonadies.pdf More Documents & Publications Application of a Diesel Fuel...

222

Characteristics of Exhaust Diesel Particles from Different Oxygenated Fuels  

Science Journals Connector (OSTI)

Characteristics of Exhaust Diesel Particles from Different Oxygenated Fuels ... The characteristic variations of exhaust particles were investigated on a light-duty diesel engine. ... This study was conducted on a 2005 model-year light-duty diesel engine that meets Chinese national stage III emission standards (equivalent to Euro III emission standards) without any exhaust control device. ...

Zhen Xu; Xinling Li; Chun Guan; Zhen Huang

2013-12-02T23:59:59.000Z

223

Dual-fueling turbocharged diesels with ethanol  

SciTech Connect (OSTI)

Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution. (Refs. 6).

Cruz, J.M.; Rotz, C.A.; Watson, D.H.

1982-09-01T23:59:59.000Z

224

Dual-fueling turbocharged diesels with ethanol  

SciTech Connect (OSTI)

Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution.

Cruz, J.M.; Rotz, C.A.; Watson, D.H.

1982-09-01T23:59:59.000Z

225

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

226

Wear mechanism and wear prevention in coal-fueled diesel engines  

SciTech Connect (OSTI)

Contamination of the lube-oil with hard abrasive particles leads to a three-body abrasive wear mechanism that highly accelerates piston ring/cylinder liner wear in coal-fueled diesel engines. One approach to reducing that wear is to modify the size and orientation of surface asperities on the cylinder to enhance the formation of a hydrodynamic film, and to provide avenues of escape for particles that would otherwise be trapped in the wear zone. Another approach is to introduce additives into the contaminated lube-oil that further enhance hydrodynamic film formation, form chemical films on the wearing surfaces, or form films on the contaminant particles. This work focuses on defining the effects of cylinder liner surface finish, various configurations of slots in the cylinder liner surface, and various additives in the contaminated lube-oil on the wear process. Wear tests were initiated in a bench apparatus using coal-ash contaminated lube-oil to test the various wear configurations. The results of these tests indicate that the formation of a hydrodynamic film between the ring and cylinder specimens is enhanced by increasing surface roughness, and by orienting the surface asperities normal to the direction of ring travel but modifications to the cylinder liner surface did not greatly reduce the wear rate. Additives to the lubricant seemed to have a much more significant effect on wear, with a dispersant additive highly accelerating the wear, while a detergent additive was able to reduce the wear almost to the rate achieved where there was no contaminant.

Schwalb, J.A.

1991-06-01T23:59:59.000Z

227

The effect of air charge temperature on performance, ignition delay and exhaust emissions of diesel engines using w/o emulsions as fuel  

SciTech Connect (OSTI)

Most of the work performed on the use of water/oil emulsions in diesel engines showed that increasing the water content in the emulsified fuel was effective in reducing NO/sub x/ and soot emissions. Unfortunately, the increase in water content in the emulsified fuel also increases the ignition delay and may cause diesel knock. One way to reduce the ignition delay is to increase the air charge temperature. In this study, the effect of increasing the air charge temperature on ignition delay, performance and exhaust emissions was investigated. The experiments were conducted on a CLR diesel engine using base-line diesel fuel number2 and stabilized macro-emulsions containing 15 percent, 30 percent and 45 percent water by volume.

Afify, E.M.; Korah, N.S.; Dickey, D.W.

1987-01-01T23:59:59.000Z

228

Thermal barrier coatings application in diesel engines  

SciTech Connect (OSTI)

Commercial use of thermal barrier coatings in diesel engines began in the mid 70`s by Dr. Ingard Kvernes at the Central Institute for Industrial Research in Oslo, Norway. Dr. Kvernes attributed attack on diesel engine valves and piston crowns encountered in marine diesel engines in Norwegian ships as hot-corrosion attributed to a reduced quality of residual fuel. His solution was to coat these components to reduce metal temperature below the threshold of aggressive hot-corrosion and also provide protection. Roy Kamo introduced thermal barrier coatings in his `Adiabatic Diesel Engine` in the late 70`s. Kamo`s concept was to eliminate the engine block water cooling system and reduce heat losses. Roy reported significant performance improvements in his thermally insulated engine at the SAE Congress in 1982. Kamo`s work stimulates major programs with insulated engines, particularly in Europe. Most of the major diesel engine manufacturers conducted some level of test with insulated combustion chamber components. They initially ran into increased fuel consumption. The German engine consortium had Prof. Woschni of the Technical Institute in Munich. Woschni conducted testing with pistons with air gaps to provide the insulation effects. Woschni indicated the hot walls of the insulated engine created a major increase in heat transfer he refers to as `convection vive.` Woschni`s work was a major factor in the abrupt curtailment of insulated diesel engine work in continental Europe. Ricardo in the UK suggested that combustion should be reoptimized for the hot-wall effects of the insulated combustion chamber and showed under a narrow range of conditions fuel economy could be improved. The Department of Energy has supported thermal barrier coating development for diesel engine applications. In the Clean Diesel - 50 Percent Efficient (CD-50) engine for the year 2000, thermal barrier coatings will be used on piston crowns and possibly other components.

Fairbanks, J.W.

1995-10-01T23:59:59.000Z

229

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

230

Exhaust gas fuel reforming of Diesel fuel by non-thermal arc discharge for NOx trap regeneration  

E-Print Network [OSTI]

1 Exhaust gas fuel reforming of Diesel fuel by non- thermal arc discharge for NOx trap regeneration to the reforming of Diesel fuel with Diesel engine exhaust gas using a non-thermal plasma torch for NOx trap Diesel fuel reforming with hal-00617141,version1-17May2013 Author manuscript, published in "Energy

Boyer, Edmond

231

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

232

Technology Development for Light Duty High Efficient Diesel Engines...  

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

optimization. deer09stanton.pdf More Documents & Publications Light Duty Efficient Clean Combustion Advanced Diesel Engine Technology Development for HECC Effects of Biomass Fuels...

233

A Correlation of Diesel Engine Performance with Measured NIR...  

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

CORRELATION OF DIESEL ENGINE PERFORMANCE WITH MEASURED NIR FUEL CHARACTERISTICS Bruce Bunting, Michael Bunce, ORNL Alain Lunati, Oswin Galtier, Eric Hermitte, SP3H Monday, P-02...

234

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

235

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

236

Alternative Fuels Data Center: Diesel Fuel Blend Tax Exemption  

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

Diesel Fuel Blend Tax Diesel Fuel Blend Tax Exemption to someone by E-mail Share Alternative Fuels Data Center: Diesel Fuel Blend Tax Exemption on Facebook Tweet about Alternative Fuels Data Center: Diesel Fuel Blend Tax Exemption on Twitter Bookmark Alternative Fuels Data Center: Diesel Fuel Blend Tax Exemption on Google Bookmark Alternative Fuels Data Center: Diesel Fuel Blend Tax Exemption on Delicious Rank Alternative Fuels Data Center: Diesel Fuel Blend Tax Exemption on Digg Find More places to share Alternative Fuels Data Center: Diesel Fuel Blend Tax Exemption on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Diesel Fuel Blend Tax Exemption The biodiesel or ethanol portion of blended fuel containing taxable diesel

237

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

238

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

239

Analysis of Class 8 Hybrid-Electric Truck Technologies Using Diesel, LNG, Electricity, and Hydrogen, as the Fuel for Various Applications  

E-Print Network [OSTI]

of the hybrid-electric diesel and LNG Class 8 trucks wereengine truck, diesel hybrid-electric, conventional LNGhybrid-electric vehicles with diesel and LNG engines, fuel

Zhao, Hengbing

2013-01-01T23:59:59.000Z

240

Adhesion of Acinetobacter venetianus to Diesel Fuel Droplets Studied with In Situ Electrochemical and Molecular Probes  

Science Journals Connector (OSTI)

...and Center for Marine and Environmental...1997), to diesel fuel (a mixture...Italiana) for diesel engine vehicles is composed...liquid medium (marine broth; Difco...on commercial diesel fuel or n-hexadecane...Polarography of marine particles...strains degrading diesel fuel . Ivosevic...

Franco Baldi; Nadica Ivos?evi?; Andrea Minacci; Milva Pepi; Renato Fani; Vesna Svetlic?i?; Vera Z?uti?

1999-05-01T23:59:59.000Z

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


241

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands...  

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

Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels 2003 DEER Conference Presentation:...

242

Diesel-engine fumigation with aqueous ethanol  

SciTech Connect (OSTI)

A three cylinder, two cycle diesel engine, rated at 22KW at 2300 rpm, was fumigated with ethanol of 140-to-200 proofs. P-T diagrams and engine performance were analyzed with particular emphasis on the detection and evaluation of the knock phenomenon. Satisfactory full load operation was obtained with thirty percent of the fuel energy supplied as aqueous ethanol.

McLaughlin, S.L.; Stephenson, K.Q.

1981-01-01T23:59:59.000Z

243

Experimental Investigation of the Effects of Fuel Characteristics on High Efficiency Clean Combustion (HECC) in a Light-Duty Diesel Engine  

SciTech Connect (OSTI)

An experimental study was performed to understand fuel property effects on low temperature combustion (LTC) processes in a light-duty diesel engine. These types of combustion modes are often collectively referred to as high efficiency clean combustion (HECC). A statistically designed set of research fuels, the Fuels for Advanced Combustion Engines (FACE), were used for this study. Engine conditions consistent with low speed cruise (1500 rpm, 2.6 bar BMEP) were chosen for investigating fuel property effects on HECC operation in a GM 1.9-L common rail diesel engine. The FACE fuel matrix includes nine combinations of fuel properties including cetane number (30 to 55), aromatic contents (20 to 45 %), and 90 % distillation temperature (270 to 340 C). HECC operation was achieved with high levels of EGR and adjusting injection parameters, e.g. higher fuel rail pressure and single injection event, which is also known as Premixed Charge Compression Ignition (PCCI) combustion. Engine performance, pollutant emissions, and details of the combustion process are discussed in this paper. Cetane number was found to significantly affect the combustion process with variations in the start of injection (SOI) timing, which revealed that the ranges of SOI timing for HECC operation and the PM emission levels were distinctively different between high cetane number (55) and low cetane number fuels (30). Low cetane number fuels showed comparable levels of regulated gas emissions with high cetane number fuels and had an advantage in PM emissions.

Cho, Kukwon [ORNL; Han, Manbae [ORNL; Wagner, Robert M [ORNL; Sluder, Scott [ORNL

2009-01-01T23:59:59.000Z

244

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

245

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

246

A parametric study for specific fuel consumption of an intercooled diesel engine using a neural network  

Science Journals Connector (OSTI)

Turbocharging is a process wherein the amount of oxygen used in a combustion reaction is increased to raise output and decrease specific fuel consumption. On account of this, fuel economy and thermal efficiency are more important for all engines. The use of an intercooler reduces the temperature of intake air to the engine, and this cooler and denser air increases thermal and volumetric efficiency. Most research projects on engineering problems usually take the form of experimental studies. However, experimental research is relatively expensive and time consuming. In recent years, Neural Networks (NNs) have increasingly been used in a diverse range of engineering applications. In this study, various parametric studies are executed to investigate the interrelationship between a single variable and two steadies and two constant parameters on the brake specific fuel consumption (BSFC, g/kW h). The variables selected are engine speed, load and Crankshaft Angel (CA). The data used in the present study were obtained from previous experimental research by the author. These data were used to enhance, train and test a NN model using a MATLAB-based program. The results of the NN based model were found to be convincing and were consistent with the experimental results. The trained NN based model was then used to perform the parametric studies. The performance of the NN based model and the results of parametric studies are presented in graphical form and evaluated.

Abdullah Uzun

2012-01-01T23:59:59.000Z

247

Engines - Particulate Studies - Revealing the True Nature of Diesel  

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

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

248

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...

249

Development of OTM Syngas Process and Testing of Syngas Derived Ulta-clean Fuels in Diesel Engines and Fuel Cells Budget Period 3  

SciTech Connect (OSTI)

This topical report summarizes work accomplished for the Program from January 1, 2003 through December 31,2004 in the following task areas: Task 1--Materials Development; Task 2--Composite Development; Task 4--Reactor Design and Process Optimization; Task 8--Fuels and Engine Testing; 8.1 International Diesel Engine Program; and Task IO: Program Management. Most of the key technical objectives for this budget period were achieved. Only partial success was achieved relative to cycle testing under pressure Major improvements in material performance and element reliability have been achieved. A breakthrough material system has driven the development of a compact planar reactor design capable of producing either hydrogen or syngas. The planar reactor shows significant advantages in thermal efficiency and costs compared to either steam methane reforming with CO{sub 2} recovery or autothermal reforming. The fuel and engine testing program is complete The single cylinder test engine evaluation of UCTF fuels begun in Budget Period 2 was finished this budget period. In addition, a study to evaluate new fuel formulations for an HCCl engine was completed.

E.T. Robinson; John Sirman; Prasad Apte; Xingun Gui; Tytus R. Bulicz; Dan Corgard; Siv Aasland; Kjersti Kleveland; Ann Hooper; Leo Bonnell; John Hemmings; Jack Chen; Bart A. Van Hassel

2004-12-31T23:59:59.000Z

250

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...

251

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

252

Control Oriented Dynamic Modeling of a Turbocharged Diesel Engine  

Science Journals Connector (OSTI)

To build a precise model is a key issue in fulfilling on optimal control of the turbocharged diesel engine. Meanvalue model has been extensively used for engine control, but neglects the scavenging efficiency. On the basis of carefully considering air-fuel ... Keywords: Diesel engine, mean-value model, AFR

Haiyan Wang; Jundong Zhang

2006-10-01T23:59:59.000Z

253

Particle size distributions from heavy-duty diesel engine operated on low-sulfur marine fuel  

Science Journals Connector (OSTI)

Particulate matter (PM) emission characteristics of a four-stroke diesel engine were investigated while operating on low-sulfur marine gas oil. PM size distributions appeared to be unimodal (accumulation mode) with fairly constant count median diameter (CMD) of 55–65 nm for all test modes at maximum engine speed. The slightly bigger CMD of around 76 nm for unimodal particle size distributions at 1080 rpm at medium- and high-load conditions was observed. The bimodal size distribution was registered only at very low load with nuclei CMD being below 15 nm, accumulation CMD of around 82 nm and percentage of nanoparticles of around 65%. The study of primary dilution air temperature (PDT) effect revealed a significant reduction in total particle number for all operating conditions when PDT was increased from 30 °C to 400 °C. This also had an effect on particle CMD values and is believed to be due to evaporation of sulfuric acid with bound water and certain organic fractions that were formed during dilution process (at PDT = 30 °C). At very low load intermediate speed conditions, the heating of dilution air had a very little effect on the nucleation mode, which could suggest that it primarily consists of heavy hydrocarbons associated with lubrication oil.

Sergey Ushakov; Harald Valland; Jørgen B. Nielsen; Erik Hennie

2013-01-01T23:59:59.000Z

254

Argonne TTRDC - Feature - Five Myths About Diesel Engines  

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

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

255

Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel Engines using Model-Based Transient Calibration  

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).

256

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

257

Evaluation of Diesel Engine Cold-Start Performance: Definition of a Grading System To Assess the Impact of Fuel  

Science Journals Connector (OSTI)

In general, the term biodiesel covers a variety of materials made from vegetable oils or animal fats. ... Thus, with optimized settings (Figure 7), it is possible to obtain the same performance for conventional diesels and blends with biodiesel. ... Körfer, T.; Lamping, M.; Rohs, H.; Adolph, D.; Pischinger, S.; Wix, K.The future power density of HSDI diesel engines with lowest engine out emissions—A key element for upcoming CO2 demands. ...

L. Starck; H. Perrin; B. Walter; N. Jeuland

2011-09-22T23:59:59.000Z

258

Analysis of parasitic losses in heavy duty diesel engines  

E-Print Network [OSTI]

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

James, Christopher Joseph

2012-01-01T23:59:59.000Z

259

Combustion and emission characteristics of a turbo-charged common rail diesel engine fuelled with diesel-biodiesel-DEE blends  

Science Journals Connector (OSTI)

The combustion and emission characteristics of a turbo-charged, common rail diesel engine fuelled with diesel-biodiesel-DEE blends were investigated. The study reports that the brake-specific fuel consumption of ...

Ni Zhang; Zuohua Huang; Xiangang Wang; Bin Zheng

2011-03-01T23:59:59.000Z

260

DEVELOPMENT OF OTM SYNGAS PROCESS AND TESTING OF SYNGAS-DERIVED ULTRA-CLEAN FUELS IN DIESEL ENGINES AND FUEL CELLS  

SciTech Connect (OSTI)

This topical report summarizes work accomplished for the Program from January 1 through September 15, 2001 in the following task areas: Task 1--materials development; Task 2--composite element development; Task 3--tube fabrication; Task 4--reactor design and process optimization; Task 5--catalyst development; Task 6--P-1 operation; Task 8--fuels and engine testing; and Task 10--project management. OTM benchmark material, LCM1, exceeds the commercial oxygen flux target and was determined to be sufficiently robust to carry on process development activities. Work will continue on second-generation OTM materials that will satisfy commercial life targets. Three fabrication techniques for composite elements were determined to be technically feasible. These techniques will be studied and a lead manufacturing process for both small and large-scale elements will be selected in the next Budget Period. Experiments in six P-0 reactors, the long tube tester (LTT) and the P-1 pilot plant were conducted. Significant progress in process optimization was made through both the experimental program and modeling studies of alternate reactor designs and process configurations. Three tailored catalyst candidates for use in OTM process reactors were identified. Fuels for the International diesel engine and Nuvera fuel cell tests were ordered and delivered. Fuels testing and engine development work is now underway.

E.T. (Skip) Robinson; James P. Meagher; Ravi Prasad

2001-10-31T23:59:59.000Z

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


261

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

262

Hydrogen assisted combustion of ethanol in Diesel enginesHydrogen assisted combustion of ethanol in Diesel engines Anil Singh Bika, Luke Franklin, Prof. David B. Kittelson  

E-Print Network [OSTI]

Hydrogen assisted combustion of ethanol in Diesel enginesHydrogen assisted combustion of ethanol a means of using nearly pure ethanol as a diesel engine fuel by using hydrogen rich gases to facilitate of combustion (SOC) · A good diesel fuel has a low ignition delay period and hence a high CN · Ethanol has

Minnesota, University of

263

Simultaneous Efficiency, NOx, and Smoke Improvements through Diesel/Gasoline Dual-Fuel Operation in a Diesel Engine  

E-Print Network [OSTI]

or liquefied petroleum gas, natural gas, biogas, hydrogen, and alcohols such as methanol, ethanol, iso-propanol, and n-butanol), and fuel additives (MTBE or methyl tertiary-butyl ether, H2O2 or hydrogen peroxide, 2-EHN or ethylhexyl nitrate and DTBP or di...

Sun, Jiafeng

2014-08-05T23:59:59.000Z

264

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

SciTech Connect (OSTI)

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

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

1995-12-01T23:59:59.000Z

265

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.

266

Thermal barrier coatings application in diesel engines  

SciTech Connect (OSTI)

Commercial use of thermal barrier coatings in diesel engines began in the mid 70`s by Dr. Ingard Kvernes at the Central Institute for Industrial Research in Oslo, Norway. Dr. Kvernes attributed attack on diesel engine valves and piston crowns encountered in marine diesel engines in Norwegian ships as hot-corrosion attributed to a reduced quality of residual fuel. His solution was to coat these components to reduce metal temperature below the threshold of aggressive hot-corrosion and also to provide protection. The Department of Energy has supported thermal barrier coating development for diesel engine applications. In the Clean Diesel - 50 Percent Efficient (CD-50) engine for the year 2000, thermal barrier coatings will be used on piston crowns and possibly other components. The primary purpose of the thermal barrier coatings will be to reduce thermal fatigue as the engine peak cylinder pressure will nearly be doubled. As the coatings result in higher available energy in the exhaust gas, efficiency gains are achieved through use of this energy by turbochargers, turbocompounding or thermoelectric generators.

Fairbanks, J.W.

1995-03-01T23:59:59.000Z

267

Fuel consumption and emissions of hybrid diesel applications  

Science Journals Connector (OSTI)

GM Powertrain Europe and the Politecnico di Torino have experimentally assessed the potentialities in terms of fuel consumption reduction and the challenges in terms of ... 1.9 l four-cylinder in-line diesel engine

Prof.-Dr. Andrea Emilio Catania; Prof.-Dr. Ezio Spessa…

2008-12-01T23:59:59.000Z

268

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.

269

JET BREAKUP and SPRAY FORMATION in a DIESEL ENGINE James Glimm  

E-Print Network [OSTI]

JET BREAKUP and SPRAY FORMATION in a DIESEL ENGINE James Glimm Department of Applied Mathematics of a fuel eÃ?cient, nonpollut- ing diesel engine. We report preliminary progress on the numerical simulation Introduction The design of a fuel eÃ?cient, nonpolluting diesel engine is the subject of intensive international

New York at Stoney Brook, State University of

270

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...

271

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

272

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

273

A new hybrid pneumatic combustion engine to improve fuel consumption of wind–Diesel power system for non-interconnected areas  

Science Journals Connector (OSTI)

This paper presents an evaluation of an optimized Hybrid Pneumatic-Combustion Engine (HPCE) concept that permits reducing fuel consumption for electricity production in non-interconnected remote areas, originally equipped with hybrid Wind–Diesel System (WDS). Up to now, most of the studies on the pneumatic hybridization of Internal Combustion Engines (ICE) have dealt with two-stroke pure pneumatic mode. The few studies that have dealt with hybrid pneumatic-combustion four-stroke mode require adding a supplementary valve to charge compressed air in the combustion chamber. This modification means that a new cylinder head should be fabricated. Moreover, those studies focus on spark ignition engines and are not yet validated for Diesel engines. Present HPCE is capable of making a Diesel engine operate under two-stroke pneumatic motor mode, two-stroke pneumatic pump mode and four-stroke hybrid mode, without needing an additional valve in the combustion chamber. This fact constitutes this study’s strength and innovation. The evaluation of the concept is based on ideal thermodynamic cycle modeling. The optimized valve actuation timings for all modes lead to generic maps that are independent of the engine size. The fuel economy is calculated for a known site during a whole year, function of the air storage volume and the wind power penetration rate.

Tammam Basbous; Rafic Younes; Adrian Ilinca; Jean Perron

2012-01-01T23:59:59.000Z

274

Alternative Fuels Data Center: Biodiesel and Green Diesel Fuel Use  

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

Biodiesel and Green Biodiesel and Green Diesel Fuel Use Requirement to someone by E-mail Share Alternative Fuels Data Center: Biodiesel and Green Diesel Fuel Use Requirement on Facebook Tweet about Alternative Fuels Data Center: Biodiesel and Green Diesel Fuel Use Requirement on Twitter Bookmark Alternative Fuels Data Center: Biodiesel and Green Diesel Fuel Use Requirement on Google Bookmark Alternative Fuels Data Center: Biodiesel and Green Diesel Fuel Use Requirement on Delicious Rank Alternative Fuels Data Center: Biodiesel and Green Diesel Fuel Use Requirement on Digg Find More places to share Alternative Fuels Data Center: Biodiesel and Green Diesel Fuel Use Requirement on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

275

ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine |...  

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

ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

276

Optimization of the Combustion in Large Marine Diesel Engine by Controlling the Exhaust Gas  

Science Journals Connector (OSTI)

The diesel engine performance and emissions are strongly linked to ... to regulate the air-fuel mixture in a diesel engine, by controlling the turbocharger speed through a ... work we have taken as a model a marine

Sabri Bechir

2013-01-01T23:59:59.000Z

277

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...

278

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 &...

279

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...

280

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...

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


281

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...

282

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...

283

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,...

284

Department of Mechanical Engineering Fall 2011 Heavy Duty Diesel Engine Friction Reduction  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical Engineering Fall 2011 Heavy Duty Diesel Engine Friction the friction losses of a heavy duty diesel engine. In addition, a tear down procedure needed to be created in order to guide the engine disassembly and testing. The overall goal was to improve fuel economy

Demirel, Melik C.

285

Experimental Investigations on Conventional and Semi-Adiabatic Diesel Engine Using Simarouba Biodiesel as Fuel  

Science Journals Connector (OSTI)

In view of fast depletion of fossil fuels and the rapid rate at which the fuel consumption is taking place all over the world, scientists are searching for alternate fuels for maintaining the growth industrially ...

M. U. Ravi; C. P. Reddy; K. Ravindranath

2013-04-01T23:59:59.000Z

286

Effect of sulfur on heavy duty diesel engine lubricants  

SciTech Connect (OSTI)

Diesel engine exhaust legislation has become quite onerous for heavy duty engines. Yet, these high thermal efficiency engines continue to meet lower exhaust particulate and NOx emissions limits, due to new engine designs and the complementary engine oil performance requirements of the API service categories. In addition, the EPA has mandated changes in on-highway diesel fuel to help meet particulate emissions regulations. On October 1, 1993, when the EPA outlawed high sulfur fuels for on-highway use, the development of the API CG-4 engine oil performance specification was already in progress. All the new diesel engine tests in the category were therefore designed to run with low (< 0.05% wt.) sulfur fuel. In some engine tests, this new fuel improved some lubricant performance characteristics and degraded others. An engine oil specification for low sulfur fuel brings new challenges to developing future specifications for diesel engine oils. Both higher and lower lubricant additive treat rate products, high performance single grade oils, and formulations to meet world-wide specifications become viable. This paper discusses the results of a diesel engine oil technology that performs well with the new, low sulfur fuel in both engine tests and in the field.

Hayden, T.E. [Texaco Fuels and Lubricants Research Dept., Beacon, NY (United States)

1996-12-01T23:59:59.000Z

287

DOE/VTP Light-Duty Diesel Engine Commercialization  

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

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

288

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

289

EXPERIMENTAL INVESTIGATION ON PERFORMANCE CHARACTERISTICS OF A DI DIESEL ENGINE USING FUEL DERIVED FROM ORANGE PEEL;.  

E-Print Network [OSTI]

??For more than 70 years, in many countries bio-fuels have played an newlineimportant role as fuel in automobiles as they are renewable, eco-friendly and newlinenon-toxic.… (more)

PURUSHOTHAMAN K

2009-01-01T23:59:59.000Z

290

Getting Serious About Biofuels ALTHOUGH RUDOLF DIESEL IMAGINED THAT HIS EPONYMOUS ENGINE WOULD BE FUELED BY VEGETABLE  

E-Print Network [OSTI]

Getting Serious About Biofuels ALTHOUGH RUDOLF DIESEL IMAGINED THAT HIS EPONYMOUS ENGINE WOULD- outrequiringsubstantialmodificationofexistingvehiclesorofthefueldistributioninfrastructure:secu- rity of supply (biofuels can be produced locally in sustainable systems), lowernet of biomass transport determines the supply area of a biofuels processing facility and thus its scale

291

Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel Injectors  

Broader source: Energy.gov [DOE]

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

292

Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel Injectors  

Broader source: Energy.gov [DOE]

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

293

Mutagenicity of diesel exhaust particle extracts: Influence of non-petroleum fuel extenders  

Science Journals Connector (OSTI)

The mutagenicity of dichloromethane extracts of diesel participate exhaust, collected while the engine was running at steady state on diesel fuel alone was higher than when 10% ... in higher estimates of mutageni...

Charles R. Clark Ph.D.; Roger O. McClellan…

1982-11-01T23:59:59.000Z

294

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

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

Fuel Type: Hybrid - Diesel Electric Maximum Seating: 2 Hybrid System(s): Eaton - Diesel Electric Hybrid Additional Description: Class 7 T370 is powered by a Cummins diesel engine...

295

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

296

Vaporizer design criteria for ethanol fueled internal combustion engines  

E-Print Network [OSTI]

been identified in conversion of diesel engines of farm tractors for using alcohol fuels. Distillation at atmospheric pressure does not yield 200 proof ethanol, (Winston, 1981), so with present technology, ethanol produced on farms is aqueous. A... engines 2. Modify diesel to tolerate straight ethanol injection. 3. Mix ethanol with diesel fuel. 4. Carburete the ethanol separately Converting Diesels To SI Engines Most diesel engines currently used in tractors operate with compression ratios...

Ariyaratne, Arachchi Rallage

2012-06-07T23:59:59.000Z

297

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...

298

Road to Fuel Savings: Clean Diesel Trucks Gain Momentum with Nissan and Cummins Collaboration  

Broader source: Energy.gov [DOE]

Learn how a new clean diesel engine could improve the fuel economy of full-sized pickup trucks by 40 percent while meeting new emissions standards.

299

Adhesion of Acinetobacter venetianus to Diesel Fuel Droplets Studied with In Situ Electrochemical and Molecular Probes  

Science Journals Connector (OSTI)

...energy source. The diesel fuel (Esso Italiana) for diesel engine vehicles is composed of a mixture...5 mm2 s1 at 40C (). The diesel fuel was filtered through a 0...6-diamidino-2-phenylindole) staining (). O2 consumption rates. The strains were grown...

Franco Baldi; Nadica Ivos?evi?; Andrea Minacci; Milva Pepi; Renato Fani; Vesna Svetlic?i?; Vera Z?uti?

1999-05-01T23:59:59.000Z

300

Benefits of Water-Fuel Emulsion on Automotive Diesel Exhaust Emissions  

Science Journals Connector (OSTI)

Water fuel emulsion is widely used to control pollutant emissions in large and medium diesel engines. The application of this fuel to small automotive engines has been limited by the emulsion stability and eco...

K. Lombaert; L. Le Moyne; P. Guibert…

2004-01-01T23:59:59.000Z

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


301

Develop the dual fuel conversion system for high output, medium speed diesel engines. Final report  

SciTech Connect (OSTI)

The original plan for the project involved design modifications to an existing system to enhance its performance and increase the limit of power that was achieved by the original design and to apply the higher performance product to the full sized engine and test its performance. The new system would also be applied to a different engine model. The specific work would include the redesign of gas injectors, piston configurations and two types of igniters, engine instrumentation, monitoring and testing.

NONE

1998-07-16T23:59:59.000Z

302

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

303

Performance and Emission Characteristics of an Aircraft Turbo Diesel Engine using JET-A Fuel  

E-Print Network [OSTI]

....................................................................................................... 20 1.5.2 Thielert - Centurion ....................................................................................................... 21 1.5.2.1 Full Authority Digital Engine Control (FADEC)................................................. 24 1... Figure 11: Torque Load Cell....................................................................................... 19 Figure 12: Thielert Centurion's Control Panel............................................................ 20 Figure 13: CED...

Underwood, Sean Christopher

2008-05-05T23:59:59.000Z

304

Wear mechanism and wear prevention in coal-fueled diesel engines. Task 3, Traditional approaches to wear prevention  

SciTech Connect (OSTI)

Contamination of the lube-oil with hard abrasive particles leads to a three-body abrasive wear mechanism that highly accelerates piston ring/cylinder liner wear in coal-fueled diesel engines. One approach to reducing that wear is to modify the size and orientation of surface asperities on the cylinder to enhance the formation of a hydrodynamic film, and to provide avenues of escape for particles that would otherwise be trapped in the wear zone. Another approach is to introduce additives into the contaminated lube-oil that further enhance hydrodynamic film formation, form chemical films on the wearing surfaces, or form films on the contaminant particles. This work focuses on defining the effects of cylinder liner surface finish, various configurations of slots in the cylinder liner surface, and various additives in the contaminated lube-oil on the wear process. Wear tests were initiated in a bench apparatus using coal-ash contaminated lube-oil to test the various wear configurations. The results of these tests indicate that the formation of a hydrodynamic film between the ring and cylinder specimens is enhanced by increasing surface roughness, and by orienting the surface asperities normal to the direction of ring travel but modifications to the cylinder liner surface did not greatly reduce the wear rate. Additives to the lubricant seemed to have a much more significant effect on wear, with a dispersant additive highly accelerating the wear, while a detergent additive was able to reduce the wear almost to the rate achieved where there was no contaminant.

Schwalb, J.A.

1991-06-01T23:59:59.000Z

305

Coal-fueled high-speed diesel engine development. Annual technical progress report, October 1990--September 1991  

SciTech Connect (OSTI)

The objectives of this program are to study combustion feasibility by running Series 149 engine tests at high speeds with a fuel injection and combustion system designed for coal-water-slurry (CWS). The following criteria will be used to judge feasibility: (1) engine operation for sustained periods over the load range at speeds from 600 to 1900 rpm. The 149 engine for mine-haul trucks has a rated speed of 1900 rpm; (2) reasonable fuel economy and coal burnout rate; (3) reasonable cost of the engine design concept and CWS fuel compared to future oil prices.

Not Available

1991-11-01T23:59:59.000Z

306

Role of Hydrogen Peroxide in a Selected Emulsified Fuel Ratio and Comparing It to Diesel Fuel  

Science Journals Connector (OSTI)

(9) At higher load conditions, the brake thermal efficiency slightly increases for the hydrogen-peroxide-added emulsified fuel than for the remaining two fuels. ... Reduction of NOx, smoke, BSFC, and maximum combustion pressure by low compression ratios in a diesel engine fueled by emulsified fuel. ...

M. P. Ashok; C. G. Saravanan

2008-05-03T23:59:59.000Z

307

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...

308

An Integrated Approach for Creating Model Diesel Fuels  

Science Journals Connector (OSTI)

An Integrated Approach for Creating Model Diesel Fuels ... There is growing recognition that the optimal fuel properties (i) are dependent on the engine operating conditions and (ii) can be different for different parts of the drive cycle. ... The total solution to this problem belongs to the general and very difficult class of mixed-integer nonlinear problems (MINLP). ...

Ioannis P. Androulakis; Mark D. Weisel; Chang S. Hsu; Kuangnan Qian; Larry A. Green; John T. Farrell; Kiyomi Nakakita

2004-11-19T23:59:59.000Z

309

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.

310

Combustion, Efficiency, and Fuel Effects in a Spark-Assisted HCCI Gasoline Engine  

Broader source: Energy.gov [DOE]

2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Oak Ridge National Laboratory, Fuel, Engines, and Emissions Research Center

311

Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy...  

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

Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy 2004 Diesel Engine Emissions Reduction...

312

Fuel Economy of Hybrids, Diesels, and Alternative Fuel Vehicles  

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

You are here: Find a Car - Home > Hybrids, Diesels, and Alternative Fuel You are here: Find a Car - Home > Hybrids, Diesels, and Alternative Fuel Vehicles Hybrids, Diesels, and Alternative Fuel Vehicles Search by Vehicle Type 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 Select Vehicle Type Diesel Electric Ethanol-Gasoline Hybrid Plug-in Hybrid Natural Gas Bifuel Natural Gas Bifuel Propane Go More Search Options Browse New Cars Hybrid Vehicles Plug-in Hybrid Vehicles Battery Electric Vehicles Diesel Vehicles Flex-Fuel Vehicles CNG Vehicles Related Information How Hybrid Vehicles Work How Fuel Cell Vehicles Work MotorWeek Videos Compare Hybrids Compare Diesels Extreme MPG Tax Incentive Information Center Alternative Fuel Station Locator Alternative Fuel and Advanced Vehicle Data Center | Share I want to... Compare Side-by-Side

313

Effect of n-Butanol Blending with a Blend of Diesel and Biodiesel on Performance and Exhaust Emissions of a Diesel Engine  

Science Journals Connector (OSTI)

Effect of n-Butanol Blending with a Blend of Diesel and Biodiesel on Performance and Exhaust Emissions of a Diesel Engine ... Mechanical Engineering, Batman University, Batman 72100, Turkey ... Diesel engines are widely used for transportation, energy production, and agricultural and industrial applications because of their high fuel conversion efficiencies and durability. ...

S?ehmus Altun; Cengiz O?ner; Fevzi Yas?ar; Hamit Adin

2011-06-22T23:59:59.000Z

314

The influence of propylene glycol ethers on base diesel properties and emissions from a diesel engine  

Science Journals Connector (OSTI)

Abstract The oxygenated additives propylene glycol methyl ether (PGME), propylene glycol ethyl ether (PGEE), dipropylene glycol methyl ether (DPGME) were studied to determine their influence on both the base diesel fuel properties and the exhaust emissions from a diesel engine (CO, NOx, unburnt hydrocarbons and smoke). For diesel blends with low oxygen content (?4.0 wt.%), the addition of these compounds to base diesel fuel decreases aromatic content, kinematic viscosity, cold filter plugging point and Conradson carbon residue. Also, each compound modifies the distillation curve at temperatures below the corresponding oxygenated compound boiling point, the distillate percentage being increased. The blend cetane number depends on the type of propylene glycol ether added, its molecular weight, and the oxygen content of the fuel. The addition of PGME decreased slightly diesel fuel cetane number, while PGEE and DPGME increased it. Base diesel fuel-propylene glycol ether blends with 1.0 and 2.5 wt.% oxygen contents were used in order to determine the performance of the diesel engine and its emissions at both full and medium loads and different engine speeds (1000, 2500 and 4000 rpm). In general, at full load and in comparison with base diesel fuel, the blends show a slight reduction of oxygen-free specific fuel consumption. CO emissions are reduced appreciably for 2.5 wt.% of oxygen blends, mainly for PGEE and DPGME. \\{NOx\\} emissions are reduced slightly, but not the smoke. Unburnt hydrocarbon emissions decrease at 1000 and 2500 rpm, but not at 4000 rpm. At medium load, the effect of the additives is much less significant, due to the fact that the ratio oxygen from additive/oxygen from air is much lower.

F. Gómez-Cuenca; M. Gómez-Marín; M.B. Folgueras-Díaz

2013-01-01T23:59:59.000Z

315

Assessment of the effect of low viscosity oils usage on a light duty diesel engine fuel consumption in stationary and transient conditions  

Science Journals Connector (OSTI)

Abstract Regarding the global warming due to CO2 emissions, the crude oil depletion and its corresponding rising prices, \\{OEMs\\} are exploring different solutions to increase the internal combustion engine efficiency, among which, the use of Low Viscosity Oils (LVO) represents one attractive cost-effective way to accomplish this goal. Reported in terms of fuel consumption, the effect of LVO is round 2%, depending on the test conditions, especially if the test has taken place in laboratory or “on road” conditions. This study presents the fuel consumption benefits of a commercial 5W20, compared against higher SAE grade oils, on a light duty diesel engine, when it is running under motored test, stationary fired test and the New European Driving Cycle (NEDC).

Vicente Macián; Bernardo Tormos; Vicente Bermúdez; Leonardo Ramírez

2014-01-01T23:59:59.000Z

316

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

317

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

SciTech Connect (OSTI)

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

NONE

1996-09-01T23:59:59.000Z

318

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...

319

Control of NOx and PM emissions from SCR-equipped 2010 compliant heavy duty diesel engine over different engine-out calibrations.  

E-Print Network [OSTI]

??Diesel engines constitute a valuable solution to the growing demand for higher fuel efficiencies, especially in relation to the rapid growth of fuel prices in… (more)

Ardanese, Raffaello.

2008-01-01T23:59:59.000Z

320

Solid fuel applications to transportation engines  

SciTech Connect (OSTI)

The utilization of solid fuels as alternatives to liquid fuels for future transportation engines is reviewed. Alternative liquid fuels will not be addressed nor will petroleum/solid fuel blends except for the case of diesel engines. With respect to diesel engines, coal/oil mixtures will be addressed because of the high interest in this specific application as a result of the large number of diesel engines currently in transportation use. Final assessments refer to solid fuels only for diesel engines. The technical assessments of solid fuels utilization for transportation engines is summarized: solid fuel combustion in transportation engines is in a non-developed state; highway transportation is not amenable to solid fuels utilization due to severe environmental, packaging, control, and disposal problems; diesel and open-cycle gas turbines do not appear worthy of further development, although coal/oil mixtures for slow speed diesels may offer some promise as a transition technology; closed-cycle gas turbines show some promise for solid fuels utilization for limited applications as does the Stirling engine for use of cleaner solid fuels; Rankine cycle engines show good potential for limited applications, such as for locomotives and ships; and any development program will require large resources and sophisticated equipment in order to advance the state-of-the-art.

Not Available

1980-06-01T23:59:59.000Z

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


321

Straight Vegetable Oil as a Diesel Fuel? (Fact Sheet)  

SciTech Connect (OSTI)

Discusses the use of straight vegetable oil as a diesel fuel and the use of biodiesel as a transportation fuel.

Not Available

2010-05-01T23:59:59.000Z

322

Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel  

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

Biodiesel Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel to someone by E-mail Share Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Facebook Tweet about Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Twitter Bookmark Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Google Bookmark Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Delicious Rank Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Digg Find More places to share Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on AddThis.com... More in this section... Biodiesel Basics Benefits & Considerations Stations Vehicles Availability Emissions

323

Development of an ANN based system identification tool to estimate the performance-emission characteristics of a CRDI assisted CNG dual fuel diesel engine  

Science Journals Connector (OSTI)

Abstract In the present study the performance and emission parameters of a single cylinder four-stroke CRDI engine under CNG-diesel dual-fuel mode have been modeled by Artificial Neural Network. An ANN model was developed to predict BSFC, BTE, NOx, PM and HC based on the experimental data, with load, fuel injection pressure and CNG energy share as input parameters for the network. The developed ANN model was capable of predicting the performance and emission parameters with commendable accuracy as observed from correlation coefficients within the range of 0.99833–0.99999, mean absolute percentage error in the range of 0.045–1.66% along with noticeably low root mean square errors provided an acceptable index of the robustness of the predicted accuracy.

Sumit Roy; Rahul Banerjee; Ajoy Kumar Das; Probir Kumar Bose

2014-01-01T23:59:59.000Z

324

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...

325

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...

326

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:...

327

Coal-fueled diesels for modular power generation  

SciTech Connect (OSTI)

Interest in coal-fueled heat engines revived after the sharp increase in the prices of natural gas and petroleum in the 1970`s. Based on the success of micronized coal water slurry combustion tests in an engine in the 1980`s, Morgantown Energy Technology Center (METC) of the US Department of Energy. initiated several programs for the development of advanced coal-fueled diesel and gas turbine engines for use in cogeneration, small utilities, industrial applications and transportation. Cooper-Bessemer and Arthur D. Little have been developing technology since 1985, under the sponsor of METC, to enable coal water slurry (CWS) to be utilized in large bore, medium-speed diesel engines. Modular power generation applications in the 10--100 MW size (each plant typically using from two to eight engines) are the target applications for the late 1990`s and beyond when, according to the US DOE and other projections, oil and natural gas prices are expected to escalate much more rapidly compared to the price of coal. As part of this program over 7.50 hours of prototype engine operation has been achieved on coal water slurry (CWS), including over 100 hours operation of a six-cylinder full scale engine with Integrated Emissions Control System in 1993. In this paper, the authors described the project cost of the CWS fuel used, the heat rate of the engine operating on CWS, the projected maintenance cost for various engine components, and the demonstrated low emissions characteristics of the coal diesel system.

Wilson, R.P. [Little (Arthur D.), Inc., Cambridge, MA (United States); Rao, A.K. [Cooper-Bessemer Reciprocating, Grove City, PA (United States); Smith, W.C. [Department of Energy, Morgantown, WV (United States). Morgantown Energy Technology Center

1993-11-01T23:59:59.000Z

328

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; André L. Boehman

2005-05-14T23:59:59.000Z

329

Investigation of a Fatality Due to Diesel Fuel No. 2 Ingestion  

Science Journals Connector (OSTI)

......diesel oil No. 2. Diesel fuel No. 4 is marine diesel fuel or distillate marine diesel fuel (1,4). Diesel fuel No. 2 (CAS 68476-34-6...naphtalenes (dominant) to phenanthrenes. Some marine diesel fuels may content higher levels. Diesel fuel No......

María A. Martínez; Salomé Ballesteros

2006-10-01T23:59:59.000Z

330

Diesol: an alternative fuel for compression ignition engines  

SciTech Connect (OSTI)

Physical properties including specific gravity, kinematic viscosity, heat of combustion, flash point, cetane number and distillation curves are presented for several blends of No. 2 diesel fuel and soybean oil. The mixture is referred to as Diesol. The soybean oil received a minimal amount of refining by water-washing to remove most of the lecithin type gums. The Diesol fuels were tested in a Cooperative Fuel Research single cylinder diesel test engine to determine the short time engine performance using soybean oil as a diesel fuel extender. Brake specific fuel consumption, volumetric fuel consumption, exhaust smoke opacity and power were determined. Various blends of Diesol were also tested in a multicylinder diesel commercial power system. Results are presented to show the comparison between Diesol blends and diesel fuel. The fuel properties and engine performance test results indicate that soybean oil would be a viable extender of diesel fuel for compression-ignition engines.

Cochran, B.J.; Baldwin, J.D.C.; Daniel, L.R. Jr.

1981-01-01T23:59:59.000Z

331

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

332

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...

333

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...

334

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...

335

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...

336

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 Lähde; Topi Rönkkö; Annele Virtanen; Tanja J. Schuck; Liisa Pirjola; Kaarle Hämeri; Markku Kulmala; Frank Arnold; Dieter Rothe; Jorma Keskinen

2008-12-09T23:59:59.000Z

337

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...

338

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:...

339

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...

340

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...

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


341

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...

342

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

343

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...

344

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...

345

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...

346

Durability testing of medium speed diesel engine components designed for operating on coal/water slurry fuel  

SciTech Connect (OSTI)

Over 200 operating cylinder hours were run on critical wearing engine parts. The main components tested included cylinder liners, piston rings, and fuel injector nozzles for coal/water slurry fueled operation. The liners had no visible indication of scoring nor major wear steps found on their tungsten carbide coating. While the tungsten carbide coating on the rings showed good wear resistance, some visual evidence suggests adhesive wear mode was present. Tungsten carbide coated rings running against tungsten carbide coated liners in GE 7FDL engines exhibit wear rates which suggest an approximate 500 to 750 hour life. Injector nozzle orifice materials evaluated were diamond compacts, chemical vapor deposited diamond tubes, and thermally stabilized diamond. Based upon a total of 500 cylinder hours of engine operation (including single-cylinder combustion tests), diamond compact was determined to be the preferred orifice material.

McDowell, R.E.; Giammarise, A.W.; Johnson, R.N.

1994-04-01T23:59:59.000Z

347

A Lifecycle Emissions Model (LEM): Lifecycle Emissions from Transportation Fuels, Motor Vehicles, Transportation Modes, Electricity Use, Heating and Cooking Fuels, and Materials  

E-Print Network [OSTI]

AND FUEL CONSUMPTION FOR DIESEL - POWERED NONROAD FORKLIFT ENGINES ,AND FUEL CONSUMPTION FOR DIESEL - POWERED NONROAD FORKLIFT ENGINES ,

Delucchi, Mark

2003-01-01T23:59:59.000Z

348

Development of a control-oriented model to optimise fuel consumption and NOX emissions in a DI Diesel engine  

Science Journals Connector (OSTI)

Abstract This paper describes a predictive NOX and consumption model, which is oriented to control and optimisation of DI Diesel engines. The model applies the Response Surface Methodology following a two-step process: firstly, the relationship between engine inputs (intake charge conditions and injection settings) and some combustion parameters (peak pressure, indicated mean effective pressure and burn angles) is determined; secondly, engine outputs (NOX and consumption) are predicted from the combustion parameters using NOX and mechanical losses models. Splitting the model into two parts allows using either experimental or modelled combustion parameters, thus enhancing the model flexibility. If experimental in-cylinder pressure is used to obtain combustion parameters, the mean error of predicted NOX and consumption are 2% and 6% respectively, with a calculation time of 5.5 ms. Using modelled parameters reduces the calculation time to 1.5 ms, with a penalty in the accuracy. The model performs well in a multi-objective optimisation, reducing NOX and consumption in different amounts depending on the objective of the optimisation.

S. Molina; C. Guardiola; J. Martín; D. García-Sarmiento

2014-01-01T23:59:59.000Z

349

Marathon Sees Diesel Fuel in Future  

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).

350

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

351

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

352

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 mode—system 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

353

Determination of Total Biodiesel Fatty Acid Methyl, Ethyl Esters, and Hydrocarbon Types in Diesel Fuels by Supercritical Fluid Chromatography-Flame Ionization Detection  

Science Journals Connector (OSTI)

......Research and Engineering, Paulsboro...determining total biodiesel methyl and...in diesel fuels by supercritical...mixture. Introduction The proposed use of biodiesel esters derived...as diesel fuel blending...of Total Biodiesel Fatty Acid...in Diesel Fuels by Supercritical...Research and Engineering, Paulsboro......

John W. Diehl; Frank P. DiSanzo

354

Diesel Engine Combustion of Biomass Pyrolysis Oils  

Science Journals Connector (OSTI)

Biomass pyrolysis oils are manufactured through a moderate-temperature process (?500 °C) in which the biomass feedstock is subjected to rapid heating in the absence of air, where it vaporizes, cracks, and is condensed after a short residence time (?500 ms) into a dark brown liquid composed of a complex mixture of oxygenated hydrocarbons whose heating value is approximately half that of No. 2 diesel fuel. ... The combustion air inlet temperature can be preheated up to 130 °C through the use of an in-line electric heater, which allows engine operation with fuels that have long ignition delay, without relying on any ignition additives. ... Their data showed that in addition to reducing the peak heat release magnitude, slower chemical kinetics resulted in reduced rate of instantaneous heat release (the slope of the instantaneous heat release curve) in the early combustion phase, resulting in delayed peak heat release timing relative to SOC. ...

Alan Shihadeh; Simone Hochgreb

2000-02-15T23:59:59.000Z

355

Miscibility of Ethanol in Diesel Fuels  

Science Journals Connector (OSTI)

The fuels selected were as follows:? US-1D, US-2D, kerosene, light cycle oil, #1 fuel oil, Fischer Tropsch Liquid 2 (FTL-2, FTL refers to a broad-cut fraction of Fischer?Tropsch products not meeting diesel volatility specifications.), ... The close proximity of a mixture's UCST to the fuel's cloud point masked the classical UCST phase behavior for the FTL fuels and light cycle oil; however, the general trends persisted. ...

K. R. Gerdes; G. J. Suppes

2001-01-12T23:59:59.000Z

356

Cummins' Next Generation Tier 2, Bin 2 Light Truck Diesel Engine  

Broader source: Energy.gov [DOE]

Development of a new light truck, in-line 4-cylinder turbocharged diesel engine that will meet Tier 2, Bin 2 emissions and at least a 40% fuel economy benefit over the V-8 gasoline engine it could replace

357

Fuel Property, Emission Test, and Operability Results from a Fleet of Class 6 Vehicles Operating on Gas-to-Liquid Fuel and Catalyzed Diesel Particle Filters  

SciTech Connect (OSTI)

A fleet of six 2001 International Class 6 trucks operating in southern California was selected for an operability and emissions study using gas-to-liquid (GTL) fuel and catalyzed diesel particle filters (CDPF). Three vehicles were fueled with CARB specification diesel fuel and no emission control devices (current technology), and three vehicles were fueled with GTL fuel and retrofit with Johnson Matthey's CCRT diesel particulate filter. No engine modifications were made.

Alleman, T. L.; Eudy, L.; Miyasato, M.; Oshinuga, A.; Allison, S.; Corcoran, T.; Chatterjee, S.; Jacobs, T.; Cherrillo, R. A.; Clark, R.; Virrels, I.; Nine, R.; Wayne, S.; Lansing, R.

2005-11-01T23:59:59.000Z

358

Diesel Fuel Price Pass-through  

Gasoline and Diesel Fuel Update (EIA)

Diesel Fuel Price Pass-through Diesel Fuel Price Pass-through EIA Home > Petroleum > Petroleum Feature Articles Diesel Fuel Price Pass-through Printer-Friendly PDF Diesel Fuel Price Pass-through by Michael Burdette and John Zyren* Over the past several years, the Energy Information Administration (EIA) has extensively studied the relationships between wholesale and retail markets for petroleum products. Beginning with gasoline, we looked at the two ends of the pricing structure in the U.S. market: daily spot prices, which capture sales of large quantities of product between refiners, importers/exporters, and traders; and weekly retail prices, measured at local gasoline outlets nationwide. In the course of this analysis, EIA has found that the relationships between spot and retail prices are consistent and predictable, to the extent that changes in spot prices can be used to forecast subsequent changes in retail prices for the appropriate regions. This article represents the extension of this type of analysis and modeling into the diesel fuel markets.

359

Influence of Diesel Engine Combustion Parameters on Primary Soot Particle Diameter  

Science Journals Connector (OSTI)

In addition to minimized engine-out emissions, exhaust gas after-treatment systems such as diesel particle filter and chemical reduction of NOx will be necessary to meet the U.S. Federal (EPA) 2007 emission standards for heavy-duty diesel engines. ... While for the diesel fuel a reduction of the number of particles in the accumulation mode went in line with a shift of the mode diameter toward smaller values (see Figures 2 and 3), this was not a general observation for the water?diesel emulsion fuel. ... JSME International Journal, Series B: Fluids and Thermal Engineering (2001), 44 (1), 166-170 CODEN: JIJEEE; ISSN:1340-8054. ...

Urs Mathis; Martin Mohr; Ralf Kaegi; Andrea Bertola; Konstantinos Boulouchos

2005-02-04T23:59:59.000Z

360

Fuel Effects on Advanced Combustion Engines | Department of Energy  

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

More Documents & Publications Fuel Effects on Advanced Combustion: Heavy-Duty Optical-Engine Research Greenpower Trap Mufflerl System Low-Temperature Diesel Combustion...

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


361

(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

362

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

363

Alternative Fuels Data Center: Biodiesel and Renewable Diesel Definitions,  

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

Biodiesel and Biodiesel and Renewable Diesel Definitions, Registration, and Labeling Requirements to someone by E-mail Share Alternative Fuels Data Center: Biodiesel and Renewable Diesel Definitions, Registration, and Labeling Requirements on Facebook Tweet about Alternative Fuels Data Center: Biodiesel and Renewable Diesel Definitions, Registration, and Labeling Requirements on Twitter Bookmark Alternative Fuels Data Center: Biodiesel and Renewable Diesel Definitions, Registration, and Labeling Requirements on Google Bookmark Alternative Fuels Data Center: Biodiesel and Renewable Diesel Definitions, Registration, and Labeling Requirements on Delicious Rank Alternative Fuels Data Center: Biodiesel and Renewable Diesel Definitions, Registration, and Labeling Requirements on Digg

364

U.S. diesel fuel prices continue to decrease  

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

diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to 3.84 a gallon on Monday. That's down 8-tenths of a penny from a week ago,...

365

U.S. diesel fuel prices continue to decrease  

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

diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to 3.78 a gallon on Monday. That's down 2.3 cents from a week ago, based on...

366

New Diesel Feedstocks and Future Fuels | Department of Energy  

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

New Diesel Feedstocks and Future Fuels New Diesel Feedstocks and Future Fuels Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's...

367

Robust Strategy for Intake Leakage Detection in Diesel Engines  

E-Print Network [OSTI]

Robust Strategy for Intake Leakage Detection in Diesel Engines Riccardo Ceccarelli , Philippe are provided using advanced Diesel engine developed under AMEsim. I. INTRODUCTION The modern Diesel engine has of the functioning of a air-path in a Diesel engine with exhaust gas recirculation circuit is presented. More

Boyer, Edmond

368

Neural-Network-Based Maintenance Decision Model for Diesel Engine  

Science Journals Connector (OSTI)

To decrease the fuzzy and uncertain factors in the maintenance decision models of diesel engine, a combination BP-neural-network-based maintenance decision model for diesel engine is presented in this paper. It can make the maintenance of diesel engine ... Keywords: Deterioration degree, Diesel engine, Maintenance decision, Neural network

Yingkui Gu; Juanjuan Liu; Shuyun Tang

2008-09-01T23:59:59.000Z

369

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology  

Broader source: Energy.gov [DOE]

2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Caterpillar/U.S. Department of Energy

370

Technology Development for Light Duty High Efficient Diesel Engines  

Broader source: Energy.gov [DOE]

Improve the efficiency of diesel engines for light duty applications through technical advances in system optimization.

371

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

SciTech Connect (OSTI)

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

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

2008-01-01T23:59:59.000Z

372

Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel  

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

Michigan Fleet Reduces Michigan Fleet Reduces Gasoline and Diesel Use to someone by E-mail Share Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Facebook Tweet about Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Twitter Bookmark Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Google Bookmark Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Delicious Rank Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Digg Find More places to share Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on AddThis.com... Feb. 11, 2010 Michigan Fleet Reduces Gasoline and Diesel Use D iscover how the City of Ann Arbor reduced municipal fleet gas and diesel

373

Alternative Fuels Data Center: Clean Diesel Fleet Vehicle Grants  

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

Clean Diesel Fleet Clean Diesel Fleet Vehicle Grants to someone by E-mail Share Alternative Fuels Data Center: Clean Diesel Fleet Vehicle Grants on Facebook Tweet about Alternative Fuels Data Center: Clean Diesel Fleet Vehicle Grants on Twitter Bookmark Alternative Fuels Data Center: Clean Diesel Fleet Vehicle Grants on Google Bookmark Alternative Fuels Data Center: Clean Diesel Fleet Vehicle Grants on Delicious Rank Alternative Fuels Data Center: Clean Diesel Fleet Vehicle Grants on Digg Find More places to share Alternative Fuels Data Center: Clean Diesel Fleet Vehicle Grants on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Clean Diesel Fleet Vehicle Grants The Oklahoma Department of Environmental Quality (DEQ) Air Quality Division

374

Alternative Fuels Data Center: National Clean Diesel Campaign (NCDC)  

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

National Clean Diesel National Clean Diesel Campaign (NCDC) to someone by E-mail Share Alternative Fuels Data Center: National Clean Diesel Campaign (NCDC) on Facebook Tweet about Alternative Fuels Data Center: National Clean Diesel Campaign (NCDC) on Twitter Bookmark Alternative Fuels Data Center: National Clean Diesel Campaign (NCDC) on Google Bookmark Alternative Fuels Data Center: National Clean Diesel Campaign (NCDC) on Delicious Rank Alternative Fuels Data Center: National Clean Diesel Campaign (NCDC) on Digg Find More places to share Alternative Fuels Data Center: National Clean Diesel Campaign (NCDC) on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type National Clean Diesel Campaign (NCDC) The NCDC was established by the U.S. Environmental Protection Agency to

375

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

376

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

377

Alternative Fuels Data Center: Biodiesel and Green Diesel Definitions  

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

Biodiesel and Green Biodiesel and Green Diesel Definitions to someone by E-mail Share Alternative Fuels Data Center: Biodiesel and Green Diesel Definitions on Facebook Tweet about Alternative Fuels Data Center: Biodiesel and Green Diesel Definitions on Twitter Bookmark Alternative Fuels Data Center: Biodiesel and Green Diesel Definitions on Google Bookmark Alternative Fuels Data Center: Biodiesel and Green Diesel Definitions on Delicious Rank Alternative Fuels Data Center: Biodiesel and Green Diesel Definitions on Digg Find More places to share Alternative Fuels Data Center: Biodiesel and Green Diesel Definitions on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Biodiesel and Green Diesel Definitions Biodiesel is defined as a fuel that is comprised of mono-alkyl esters of

378

Alternative Fuels Data Center: Biofuels and Green Diesel Definitions  

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

Biofuels and Green Biofuels and Green Diesel Definitions to someone by E-mail Share Alternative Fuels Data Center: Biofuels and Green Diesel Definitions on Facebook Tweet about Alternative Fuels Data Center: Biofuels and Green Diesel Definitions on Twitter Bookmark Alternative Fuels Data Center: Biofuels and Green Diesel Definitions on Google Bookmark Alternative Fuels Data Center: Biofuels and Green Diesel Definitions on Delicious Rank Alternative Fuels Data Center: Biofuels and Green Diesel Definitions on Digg Find More places to share Alternative Fuels Data Center: Biofuels and Green Diesel Definitions on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Biofuels and Green Diesel Definitions Advanced biofuels are defined as fuels derived from any cellulose,

379

Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel  

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

Emerging Fuels Emerging Fuels Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel to someone by E-mail Share Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Facebook Tweet about Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Twitter Bookmark Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Google Bookmark Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Delicious Rank Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Digg Find More places to share Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on AddThis.com... More in this section... Biobutanol Drop-In Biofuels Methanol

380

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

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


381

Vehicle Technologies Office: 2008 Diesel Engine-Efficiency and Emissions  

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

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

382

Vehicle Technologies Office: 2007 Diesel Engine-Efficiency and Emissions  

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

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

383

Method of combustion for dual fuel engine  

DOE Patents [OSTI]

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

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

1993-12-21T23:59:59.000Z

384

Method of combustion for dual fuel engine  

DOE Patents [OSTI]

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

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

1993-12-21T23:59:59.000Z

385

Diesel Health Impacts & Recent Comparisons to Other Fuels | Department...  

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

Health Impacts & Recent Comparisons to Other Fuels Diesel Health Impacts & Recent Comparisons to Other Fuels 2002 DEER Conference Presentation: Natural Resources Defense Council...

386

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

387

Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement  

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

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

388

Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction  

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

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

389

Oil Bypass Filter and Diesel Engine Idling Wear-Rate Evaluations...  

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

Bypass Filter and Diesel Engine Idling Wear-Rate Evaluations Oil Bypass Filter and Diesel Engine Idling Wear-Rate Evaluations 2005 Diesel Engine Emissions Reduction (DEER)...

390

Fuel effects on flame lift-off under diesel conditions  

SciTech Connect (OSTI)

An apparent relation between the lift-off length under diesel conditions and the ignition quality of a fuel has previously been reported. To cast light on the underlying mechanism, the current study aims to separate flame lift-off effects of the chemical ignition delay from those of other fuel properties under diesel conditions. Flame lift-off was measured in an optical diesel engine by high-speed video imaging of OH-chemiluminescence. Fuel and ambient-gas properties were varied during the experiment. Only a weak correlation was found between ignition delay and lift-off length. The data indicate that this correlation is due to a common, stronger correlation with the ambient oxygen concentration. The chemical ignition delay and the fuel type had similar, weak effects on the lift-off length. A recently proposed mechanism for lift-off stabilization was used to interpret the results. It assumes that reactants approaching the lift-off position of the jet are mixed with high-temperature products found along the edges of the flame, which trigger autoignition. In this picture, the fuel effect is most likely due to differences in the amount of mixing with high-temperature products that is required for autoignition. In the current experiment, all lift-off effects seem to arise from variations in the reactant and product temperatures, induced by fuel and ambient properties. (author)

Persson, Helena; Andersson, Oeivind; Egnell, Rolf [Lund University (Sweden). Dept. of Energy Sciences

2011-01-15T23:59:59.000Z

391

U.S. diesel fuel price decrease  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

U.S. average retail price for on-highway diesel fuel fell to 3.66 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy...

392

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

393

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

394

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

395

Combustion and Emissions Performance of Dual-Fuel Gasoline and Diesel HECC on a Multi-Cylinder Light Duty Diesel Engine  

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.

396

Hardware-in-the-Loop Testing of Electronically-Controlled Common-Rail Systems for Marine Diesel Engine  

Science Journals Connector (OSTI)

Tougher legislation on exhaust emissions reduction, more power and mobility and less fuel consumption, has led to stronger call for the electronic engine control units for marine diesel engines. Electronically-controlled common-rail systems for marine ... Keywords: Marine Diesel Engine, Common Rail System, Engine Controller Unit, Hardware-in-the-loop Testing, Simulation Interface Toolkit

Jiadong Zhou; Guangyao Ouyang; Minghe Wang

2010-05-01T23:59:59.000Z

397

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

398

Impact of Real Field Diesel Quality Variability on Engine Emissions...  

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

Diesel (GTL, NexBTL...) Artic Fuel Jet Fuel Synthetic Kero Europe Premium Diesels Africa Far East US Low Cetane SME RME US LC Mercosur US LC+20%SME Mercosur+40%SME...

399

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

400

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

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


401

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

402

Cummins Next Generation Tier 2, Bin 2 Light Truck Diesel engine  

Broader source: Energy.gov [DOE]

Discusses plan, baselining, and modeling, for new light truck 4-cylinder turbocharged diesel meeting Tier 2, Bin 2 emissions and 40 percent better fuel economy than the V-8 gasoline engine it will replace

403

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands...  

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

Canada Ottawa, Ontario, Canada Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels W. Stuart Neill 9 th DEER Conference, Newport, Rhode Island August...

404

?Aceite Vegetal Puro Como Combustible Diesel? (Straight Vegetable Oil as a Diesel Fuel? Spanish Version) (Fact Sheet)  

SciTech Connect (OSTI)

Discusses the use of straight vegetable oil as a diesel fuel and the use of biodiesel as a transportation fuel.

Not Available

2010-06-01T23:59:59.000Z

405

Analysis of Marine Diesel Fuel with the Advanced Distillation Curve Method  

Science Journals Connector (OSTI)

Analysis of Marine Diesel Fuel with the Advanced Distillation Curve Method ... Energy Fuels, 2013, 27 (2), ...

Peter Y. Hsieh; Kathryn R. Abel; Thomas J. Bruno

2013-01-17T23:59:59.000Z

406

Some physiochemical tests of sunflower oil and no. 2 diesel oil as fuels  

SciTech Connect (OSTI)

The suitability of sunflower oil as a fuel for diesel engines was evaluated by determining the physiochemical properties of sunflower oil, No. 2 diesel and blends of both. This evaluation was accomplished by determining the American Petroleum Institute (API) gravity, cetane rating, heat of combustion, kinematic viscosity, pour point, cloud point, and water content of these fuels using methods specified by the American Society of Testing Materials (ASTM) for diesel fuels. These tests for petroleum products are designed to standardize results so comparisons can be made from one laboratory to another.

Ramdeen, P.; Backer, L.F.; Kaufman, K.R.; Kucera, H.L.; Moilanen, C.W.

1982-05-01T23:59:59.000Z

407

Experimental Studies for DPF and SCR Model, Control System, and OBD Development for Engines Using Diesel and Biodiesel Fuels  

Broader source: Energy.gov [DOE]

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

408

Experimental Studies for DPF and SCR Model, Control System, and OBD Development for Engines Using Diesel and Biodiesel Fuels  

Broader source: Energy.gov [DOE]

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

409

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

SciTech Connect (OSTI)

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

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

2000-05-01T23:59:59.000Z

410

Diamond Green Diesel: Diversifying Our Transportation Fuel Supply |  

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

Diamond Green Diesel: Diversifying Our Transportation Fuel Supply Diamond Green Diesel: Diversifying Our Transportation Fuel Supply Diamond Green Diesel: Diversifying Our Transportation Fuel Supply January 20, 2011 - 3:48pm Addthis Jonathan Silver Jonathan Silver Executive Director of the Loan Programs Office What does this project do? Nearly triples the amount of renewable diesel produced domestically Diversifies the U.S. fuel supply Today, Secretary Chu announced the offer of a conditional commitment for a $241 million loan guarantee to Diamond Green Diesel, LLC., the DOE Loan Program's first conditional commitment for an advanced biofuels plant. The loan guarantee will support the construction of a 137-million gallon per year renewable diesel facility that will produce renewable diesel fuel primarily from animal fats, used cooking oil and other waste grease

411

A critical review of bio-diesel as a vehicular fuel  

Science Journals Connector (OSTI)

The use of vegetable oils as alternative fuels has been around for one hundred years when the inventor of the diesel engine Rudolph Diesel first tested peanut oil, in his compression-ignition engine. In 1970, scientists discovered that the viscosity of vegetable oils could be reduced by a simple chemical process and that it could perform as diesel fuel in modern engine. Considerable efforts have been made to develop vegetable oil derivatives that approximate the properties and performance of the hydrocarbon-based diesel fuels. Bio-diesel is an alternative to petroleum-based fuels derived from vegetable oils, animal fats, and used waste cooking oil including triglycerides. Bio-diesel production is a very modern and technological area for researchers due to the relevance that it is winning everyday because of the increase in the petroleum price and the environmental advantages. Transesterification is the most common method and leads to monoalkyl esters of vegetable oils and fats, now called bio-diesel when used for fuel purposes.

Mustafa Balat; Havva Balat

2008-01-01T23:59:59.000Z

412

Affordable, Low-Carbon Diesel Fuel  

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

Affordable, Low-Carbon Diesel Fuel Affordable, Low-Carbon Diesel Fuel from Domestic Coal and Biomass January 14, 2009 DOE/NETL-2009/1349 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, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

413

Robust intelligent control design for marine diesel engine  

Science Journals Connector (OSTI)

This work deals with the nonlinear control of a marine diesel engine by use of a robust intelligent control ... controller (CMAC). A mathematical model of diesel engine propulsion system is presented. In order to...

Hai-de Hua ???; Ning Ma ? ?; Jie Ma ? ?…

2013-12-01T23:59:59.000Z

414

Systematic evaluation of the reliability of marine diesel engines  

Science Journals Connector (OSTI)

A systematic model is proposed for evaluating the operational reliability of marine diesel engines. In mathematical terms, the model is ... permits the estimation of the overall reliability of marine diesel engines

G. S. Gamidov; N. K. Sanaev; Z. I. Adeev

2009-05-01T23:59:59.000Z

415

The Estimation of the Marine Main Diesel Engine Energy Balance  

Science Journals Connector (OSTI)

The basis of impact of energy device (marine main diesel engine) on its environment in terms of energy ... . Types of energy and exergy characterizing the marine main diesel engine are presented. The description ...

Z. Matuszak; G. Nicewicz

2014-01-01T23:59:59.000Z

416

Effect of Exhaust Gas Recirculation (EGR) on Diesel Engine Oil...  

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

Exhaust Gas Recirculation (EGR) on Diesel Engine Oil - Impact on Wear Effect of Exhaust Gas Recirculation (EGR) on Diesel Engine Oil - Impact on Wear Results of completed study on...

417

Vehicle Technologies Office Merit Review 2014: Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel Injectors  

Broader source: Energy.gov [DOE]

Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about design...

418

A Waste Heat Recovery System for Light Duty Diesel Engines  

SciTech Connect (OSTI)

In order to achieve proposed fuel economy requirements, engines must make better use of the available fuel energy. Regardless of how efficient the engine is, there will still be a significant fraction of the fuel energy that is rejected in the exhaust and coolant streams. One viable technology for recovering this waste heat is an Organic Rankine Cycle. This cycle heats a working fluid using these heat streams and expands the fluid through a turbine to produce shaft power. The present work was the development of such a system applied to a light duty diesel engine. This lab demonstration was designed to maximize the peak brake thermal efficiency of the engine, and the combined system achieved an efficiency of 44.4%. The design of the system is discussed, as are the experimental performance results. The system potential at typical operating conditions was evaluated to determine the practicality of installing such a system in a vehicle.

Briggs, Thomas E [ORNL; Wagner, Robert M [ORNL; Edwards, Kevin Dean [ORNL; Curran, Scott [ORNL; Nafziger, Eric J [ORNL

2010-01-01T23:59:59.000Z

419

Fuel consumption improvement for diesel engines by means of a computer-assisted automatic mapping optimization system Part 1  

Science Journals Connector (OSTI)

The Company ElringKlinger Motortechnik GmbH is carrying out engine development projects with a computer assisted System for mapping optimization which finds an optimum engine calibration using special mathematica...

Rainer Steinbrink; Gerald Eifler; Dietmar Ueberschär; Jürgen Kopp

2002-11-01T23:59:59.000Z

420

Fuel consumption improvement for series diesel engines by means of a computer-assisted automatic mapping optimization system Part 2  

Science Journals Connector (OSTI)

The Company ElringKlinger Motortechnik GmbH is carrying out engine development projects with a computer assisted System for mapping optimization which finds an optimum engine calibration using special mathematica...

Gerald Eifler; Rainer Steinbrink; Dietmar Ueberschär; Jürgen Kopp

2002-12-01T23:59:59.000Z

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


421

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

422

DOE Awarded Patent for Reformulated Diesel Fuel | Department of Energy  

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

Awarded Patent for Reformulated Diesel Fuel Awarded Patent for Reformulated Diesel Fuel DOE Awarded Patent for Reformulated Diesel Fuel May 19, 2006 - 10:46am Addthis Available free of Licensing Fees, Cleaner for the Environment WASHINGTON, DC - The U.S. Department of Energy today announced that it has developed, patented, and made commercially available reformulated diesel fuels which when used can reduce nitrogen oxides up to 10% and particulate matter up to 22% compared to those currently available. The diesel fuel formulations covered under this patent will be commercially available for use without licensing or royalty fees. This reformulated diesel fuel patent resulted from research conducted by the U.S. Department of Energy, Oak Ridge National Laboratory and its subcontractors. "DOE's personnel continue to bring to the forefront technologies and

423

Study of low-temperature-combustion diesel engines as an on-board reformer for intermediate temperature Solid Oxide Fuel Cell vehicles .  

E-Print Network [OSTI]

??Fuel cells have been recognized as a feasible alternative to current IC engines. A significant technical problem yet to be resolved is the on bound… (more)

Hahn, Tairin

2006-01-01T23:59:59.000Z

424

THIESEL 2010 Conference on Thermo-and Fluid Dynamic Processes in Diesel Engines Influence of Nozzle Geometry on Spray Shape, Particle Size, Spray  

E-Print Network [OSTI]

THIESEL 2010 Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines Influence Abstract. Air/fuel mixing process in the combustion chamber of Diesel engines plays an important role on Thermo- and Fluid Dynamic Processes in Diesel Engines, Valencia : Spain (2010)" #12;388 C. Hespel, J. B

Paris-Sud XI, Université de

425

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.

426

Coal fueled diesel system for stationary power applications-technology development  

SciTech Connect (OSTI)

The use of coal as a fuel for diesel engines dates back to the early days of the development of the engine. Dr. Diesel envisioned his concept as a multi-fuel engine, with coal a prime candidate due to the fact that it was Germany`s primary domestic energy resource. It is interesting that the focus on coal burning diesel engines appears to peak about every twenty years as shortages of other energy resources increase the economic attractiveness of using coal. This periodic interest in coal started in Germany with the work of Diesel in the timeframe 1898-1906. Pawlikowski carried on the work from 1916 to 1928. Two German companies commercialized the technology prior to and during World War II. The next flurry of activity occurred in the United States in the period from 1957-69, with work done at Southwest Research Institute, Virginia Polytechnical University, and Howard University. The current period of activity started in 1978 with work sponsored by the Conservation and Renewable Energy Branch of the US Department of Energy. This work was done at Southwest Research Institute and by ThermoElectron at Sulzer Engine in Switzerland. In 1982, the Fossil Energy Branch of the US Department of Energy, through the Morgantown Energy Technology Center (METC) initiated a concentrated effort to develop coal burning diesel and gas turbine engines. The diesel engine work in the METC sponsored program was performed at Arthur D. Little (Cooper-Bessemer as subcontractor), Bartlesville Energy Technology Center (now NIPER), Caterpillar, Detroit Diesel Corporation, General Motor Corporation (Electromotive Division), General Electric, Southwest Research Institute, and various universities and other research and development organizations. This DOE-METC coal engine RD & D initiative which spanned the 1982-1993 timeframe is the topic of this review document. The combustion of a coal-water fuel slurry in a diesel engine is described. The engine modifications necessary are discussed.

NONE

1995-08-01T23:59:59.000Z

427

A simultaneous parametric analysis of the in-cylinder processes for diesel engines  

Science Journals Connector (OSTI)

This paper describes the basic methodological principles and the results of development and practical application of simultaneous complex parametric analysis of the in-cylinder processes and thermal load on Cylinder Piston Units (CPU) in diesel engines. The application of this method to research and conceptualise engine design allows us to choose an optimal combination of the CPU parameters and diesel engine control. As a result, an admissible level of thermal stress in the CPU and low fuel consumption are achieved. The method was practically used for upgrading high-speed diesel engines of the trademarks CHN 16.5/18.5, BMD and D20.

S. Lebedevas; G. Lebedeva; A. Pikunas; B. Spruogis

2011-01-01T23:59:59.000Z

428

Fault Tolerant Oxygen Control of a Diesel Engine Air System  

E-Print Network [OSTI]

Fault Tolerant Oxygen Control of a Diesel Engine Air System Rainer Nitsche Matthias Bitzer control problem of a Diesel engine air system having a jammed Exhaust Gas Recirculation (EGR) valve of the air system. Keywords: Fault tolerant control, Diesel engine, Air system, Model-based trajectory

Paris-Sud XI, Université de

429

UNSUPERVISED CONDITION CHANGE DETECTION IN LARGE DIESEL ENGINES  

E-Print Network [OSTI]

diesel engines and stationary power plants. The possibility of early detecting small defects priorUNSUPERVISED CONDITION CHANGE DETECTION IN LARGE DIESEL ENGINES Niels Henrik Pontoppidan and Jan detection in large diesel engines from acoustical emis- sion sensor signal and compared to more classical

430

An oxygenating additive for improving the performance and emission characteristics of marine diesel engines  

Science Journals Connector (OSTI)

Diesel engines provide the major power sources for marine transportation and contribute to the prosperity of the worldwide economy. However, the emissions from diesel engines also seriously threaten the environment and are considered one of the major sources of air pollution. The pollutants emitted from marine vessels are confirmed to cause the ecological environmental problems such as the ozone layer destruction, enhancement of the greenhouse effect, and acid rain, etc. Marine diesel engine emissions such as particulate matter and black smoke carry carcinogen components that significantly impact the health of human beings. Investigations on reducing pollutants, in particular particulate matter and nitrogen oxides are critical to human health, welfare and continued prosperity. The addition of an oxygenating agent into fuel oil is one of the possible approaches for reducing this problem because of the obvious fuel oil constituent influences on engine emission characteristics. Ethylene glycol monoacetate was found to be a promising candidate primarily due to its low poison and oxygen-rich composition properties. In this experimental study ethylene glycol monoacetate was mixed with diesel fuel in various proportions to prepare oxygenated diesel fuel. A four-cylinder diesel engine was used to test the engine performance and emission characteristics. The influences of ethylene glycol monoacetate ration to diesel oil, inlet air temperature and humidity parameters on the engine’s speed and torque were considered. The experimental results show that an increase in the inlet air temperature caused an increase in brake specific fuel consumption (BSFC), carbon monoxide, carbon dioxide emission, and exhaust gas temperature, while decreasing the excess air, oxygen and nitrogen oxide emission concentrations. Increasing the inlet air humidity increased the carbon monoxide concentration while the decreased excess air, oxygen and nitrogen oxide emission concentrations. In addition, increasing ethylene glycol monoacetate ratio in the diesel fuel caused an increase in the BSFC while the excess air and oxygen emission concentrations decreased.

C.-Y. Lin; J.-C. Huang

2003-01-01T23:59:59.000Z

431

Impact of Fuel Metal Impurities on Diesel Exhaust Catalysts  

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

Fuel Metal Impurities on Diesel Exhaust Catalysts Aaron Williams, Jonathan Burton, Robert McCormick National Renewable Energy Laboratory Todd Toops, Michael Lance, Andrew...

432

Fueling U.S. Light Duty Diesel Vehicles  

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

U.S. Light Duty Diesel Vehicles DEER Conference August 23, 2005 Joe Kaufman Manager, Fuel & Vehicle Trends ConocoPhillips NYSE: COP Core Activities * Petroleum & natural gas...

433

Biodiesel Emissions Testing with a Modern Diesel Engine - Equipment Only: Cooperative Research and Development Final Report, CRADA Number CRD-10-399  

SciTech Connect (OSTI)

To evaluate the emissions and performance impact of biodiesel in a modern diesel engine equipped with a diesel particulate filter. This testing is in support of the Non-Petroleum Based Fuels (NPBF) 2010 Annual Operating Plan (AOP).

Williams, A.

2013-06-01T23:59:59.000Z

434

Light-duty diesel engine development status and engine needs  

SciTech Connect (OSTI)

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

Not Available

1980-08-01T23:59:59.000Z

435

Exploring Low Emission Lubricants for Diesel Engines  

SciTech Connect (OSTI)

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

Perez, J. M.

2000-07-06T23:59:59.000Z

436

Friction and Wear Reduction in Diesel Engine Valve Trains | Department...  

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

More Documents & Publications Mechanisms of Oxidation-Enhanced Wear in Diesel Exhaust Valves Materials for Advanced Engine Valve Train Materials for Advanced Engine Valve Train...

437

Natural Oils - The Next Generation of Diesel Engine Lubricants...  

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

Aftertreatment with a Oil Conditioning Filter Effect of Exhaust Gas Recirculation (EGR) on Diesel Engine Oil - Impact on Wear Development of High Performance Heavy Duty Engine Oils...

438

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...

439

Diesel and Gasoline Engine Emissions: Characterization of Atmosphere...  

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

and Gasoline Engine Emissions: Characterization of Atmosphere Composition and Health Responses to Inhaled Emissions Diesel and Gasoline Engine Emissions: Characterization of...

440

Optimization of Engine-out Emissions from a Diesel Engine to...  

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

Optimization of Engine-out Emissions from a Diesel Engine to Meet Tier 2 Bin 5 Emission Limits Optimization of Engine-out Emissions from a Diesel Engine to Meet Tier 2 Bin 5...

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


441

Steam bottoming cycle for an adiabatic diesel engine  

SciTech Connect (OSTI)

A study of steam bottoming cycles using adiabatic diesel engine exhaust heat projected substantial performance and economic benefits for long haul trucks. A parametric analysis of steam cycle and system component variables, system cost, size and performance was conducted. An 811 K/6.90 MPa state-of-the-art reciprocating expander steam system with a monotube boiler and radiator core condenser was selected for preliminary design. When applied to a NASA specified turbo-charged adiabatic diesel the bottoming system increased the diesel output by almost 18%. In a comparison of the costs of the diesel with bottoming system (TC/B) and a NASA specified turbocompound adiabatic diesel with after-cooling with the same total output, the annual fuel savings less the added maintenance cost was determined to cover the increased initial cost of the TC/B system in a payback period of 2.3 years. Also during this program steam bottoming system freeze protection strategies were developed, technological advances required for improved system reliability were considered and the cost and performance of advanced systems were evaluated.

Poulin, E.; Demler, R.; Krepchin, I.; Walker, D.

1984-03-01T23:59:59.000Z

442

Emissions and engine performance from blends of soya and canola methyl esters with ARB {number_sign}2 diesel in a DCC 6V92TA MUI engine  

SciTech Connect (OSTI)

A Detroit Diesel 6V92TA MUI engine was operated on several blends of EPA No. 2 diesel, California ARB No. 2 diesel, soya methyl ester (SME) and canola methyl ester (CME). Various fuels and fuel blend characteristics were determined and engine emissions from these fuels and blends were compared. Increasing percentages of SME and CME blended with either ARB or EPA diesels led to increased emissions of NO{sub x}, CO{sub 2} and soluble particulate matter. Also noted were reductions in total hydrocarbons, CO and insoluble particulate matter. Chassis dynamometer tests conducted on a 20/80 SME/ARB blend showed similar emissions trends. The data suggest that certain methyl ester/No. 2 diesel blends in conjunction with delays in engine timing and technologies that reduce the soluble fraction of particulate emissions merit further exploration as emissions reducing fuel options for North American mass transits (except in California, which mandates ARB diesel).

Spataru, A.; Romig, C.

1995-12-31T23:59:59.000Z

443

Experimental investigations on diesel engine fuelled with methyl esters of cotton seed oil  

Science Journals Connector (OSTI)

In this investigation, cotton seed methyl ester (CSME) was prepared by transesterification using potassium hydroxide (KOH) as catalyst. The engine performance was analysed with different blends of biodiesel and was compared with neat diesel. It was concluded that the lower blends of biodiesel are closer to diesel as far as thermal efficiency is concerned. In the lower blends, the brakes specific fuel consumption is also comparatively reduced. The smoke density also increases for the blends of methyl ester of cotton seed oil diesel compared to neat diesel operation. The oxides of nitrogen (NOx) emission level are decreased with the blends of methyl ester of cotton seed oil compared to neat diesel. The results proved that the use of biodiesel (produced from cotton seed oil) in compression ignition engine is a viable alternative to diesel.

M. Saravanan; A. Anbarasu; M. Loganathan

2013-01-01T23:59:59.000Z

444

Comparative urban drive cycle simulations of light-duty hybrid vehicles with gasoline or diesel engines and emissions controls  

SciTech Connect (OSTI)

Electric hybridization is a very effective approach for reducing fuel consumption in light-duty vehicles. Lean combustion engines (including diesels) have also been shown to be significantly more fuel efficient than stoichiometric gasoline engines. Ideally, the combination of these two technologies would result in even more fuel efficient vehicles. However, one major barrier to achieving this goal is the implementation of lean-exhaust aftertreatment that can meet increasingly stringent emissions regulations without heavily penalizing fuel efficiency. We summarize results from comparative simulations of hybrid electric vehicles with either stoichiometric gasoline or diesel engines that include state-of-the-art aftertreatment emissions controls for both stoichiometric and lean exhaust. Fuel consumption and emissions for comparable gasoline and diesel light-duty hybrid electric vehicles were compared over a standard urban drive cycle and potential benefits for utilizing diesel hybrids were identified. Technical barriers and opportunities for improving the efficiency of diesel hybrids were identified.

Gao, Zhiming [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Smith, David E [ORNL] [ORNL

2013-01-01T23:59:59.000Z

445

Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil...  

Gasoline and Diesel Fuel Update (EIA)

AdministrationPetroleum Marketing Annual 1998 295 Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil Volumes by PAD District and State (Thousand Gallons per Day) -...

446

Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil...  

Gasoline and Diesel Fuel Update (EIA)

AdministrationPetroleum Marketing Annual 1999 295 Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil Volumes by PAD District and State (Thousand Gallons per Day) -...

447

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

448

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

449

Improving Turbocharged Diesel Engine Operation with Turbo Power Assist System  

E-Print Network [OSTI]

Improving Turbocharged Diesel Engine Operation with Turbo Power Assist System I. Kolmanovsky A. G. In this pa- per we investigate the coupling of a power assist system at the turbocharger shaft of a diesel representation of a diesel engine with a turbocharger power assist system. A turbocharger power assist system

Stefanopoulou, Anna

450

Measured effect of wind generation on the fuel consumption of an isolated diesel power system  

SciTech Connect (OSTI)

The Block Island Power Company (BIPCO), on Block Island, Rhode Island, operates an isolated electric power system consisting of diesel generation and an experimental wind turbine. The 150-kW wind turbine, designated MOD-OA by the U.S. Department of Energy is typically operated in parallel with two diesel generators to serve an average winter load of 350 kW. Wind generation serves up to 60% of the system demand depending on wind speed and total system load. Results of diesel fuel consumption measurements are given for the diesel units operated in parallel with the wind turbine and again without the wind turbine. The fuel consumption data are used to calculate the amount of fuel displaced by wind energy. Results indicate that the wind turbine displaced 25,700 lbs. of the diesel fuel during the test period, representing a calculated reduction in fuel consumption of 6.7% while generating 11% of the total electrical energy. The amount of displaced fuel depends on operating conditions and system load. It is also shown that diesel engine throttle activity resulting from wind gusts which rapidly change the wind turbine output do not significantly influence fuel consumption.

Stiller, P.; Scott, G.; Shaltens, R.

1983-06-01T23:59:59.000Z

451

U.S. diesel fuel prices continue to decrease  

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

7, 2014 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to 3.64 a gallon on Monday. That's down 2.1 cents from a week...

452

U.S. diesel fuel prices continue to decrease  

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

0, 2014 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to 3.66 a gallon on Monday. That's down 4.2 cents from a week...

453

U.S. diesel fuel price hits 2014 low  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

diesel fuel price hits 2014 low The U.S. average retail price for on-highway diesel fuel has fallen to its lowest level so far in 2014 at 3.86 a gallon on Monday. That's down 1.1...

454

U.S. diesel fuel prices continue to decrease  

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

2, 2014 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to 3.81 a gallon on Monday. That's down 7-tenths of a penny from...

455

A cycle simulation of coal particle fueled reciprocating internal-combustion engines  

E-Print Network [OSTI]

- Summary of Experimental Diesel Engine Operation on Solid Coal Fuels Page Table 2 - Property Data for Coal (Char) Particles . . 23 Table 3 - Summary of the Combustion Model and Reaction Constants 40 Table 4 ? Specifications of the Base Case Engine... Efforts The first attempt to operate a solid particle fueled piston engine was performed nearly a century ago by Rudolf Diesel, inventor of the compression-ignition engine. Since then, at least a dozen separate attempts to oper- ate diesel engines...

Rosegay, Kenneth Harold

2012-06-07T23:59:59.000Z

456

Cleaner, More Efficient Diesel Engines  

SciTech Connect (OSTI)

Mark Musculus, an engine combustion scientist at Sandia National Laboratories, led a study that outlines the science base for auto and engine manufacturers to build the next generation of cleaner, more efficient engines using low-temperature combustion. Here, Musculus discusses the work at Sandia's Combustion Research Facility.

Musculus, Mark

2013-08-13T23:59:59.000Z

457

Load Expansion with Diesel/Gasoline RCCI for Improved Engine Efficiency and Emissions  

Broader source: Energy.gov [DOE]

This poster will describe preliminary emission results of gasoline/diesel RCCI in a medium-duty diesel engine.

458

Dual fuel engine control systems for transportation applications  

SciTech Connect (OSTI)

Microprocessor control systems have been developed for dual fuel diesel engines intended for transportation applications. Control system requirements for transportation engines are more demanding than for stationary engines, as the system must be able to cope with variable speed and load. Detailed fuel maps were determined for both normally aspirated and turbocharged diesel engines based on the criterion that the engine did not operate in the regimes where knock or incomplete combustion occurred. The control system was developed so that the engine would follow the detailed fuel map. The input variables to the control system are engine speed and load. Based on this, the system then controls the amount of natural gas and diesel fuel supplied to the engine. The performance of the system is briefly summarized.

Gettel, L.E.; Perry, G.C.; Boisvert, J.; O'Sullivan, P.J.

1987-10-01T23:59:59.000Z

459

Argonne TTRDC - Feature - Combining Gas and Diesel Engines  

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

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

460

Diesel Engines for Road Transport  

Science Journals Connector (OSTI)

... A REMARKABLE revolution is taking place in the type of engine used in large motor vehicles, and by some it is thought that for road ... motor vehicles, and by some it is thought that for road transport the highspeed oil engine is destined to supersede the long-favoured petrol ...

1933-10-21T23:59:59.000Z

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


461

E-Print Network 3.0 - adiabatic diesel engine Sample Search Results  

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

engine Search Powered by Explorit Topic List Advanced Search Sample search results for: adiabatic diesel engine...

462

E-Print Network 3.0 - automotive diesel engine Sample Search...  

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

engine Search Powered by Explorit Topic List Advanced Search Sample search results for: automotive diesel engine...

463

E-Print Network 3.0 - advanced diesel engine Sample Search Results  

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

engine Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced diesel engine...