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


1

Aged asphalt  

E-Print Network [OSTI]

Dorchester Asphalts Exxon Asphalts CONCLUSIONS RECOMMENDATIONS LITERATURE CITED APPENDIX 41 42 48 59 70 84 90 93 96 99 103 105 106 A. GEL PERMEATION CHROMATOGRAMS OF TEST ASPHALTS 108 B. FOURIER-TRANSFORM INFRARED SPECTRUMS OF TEST... Apparatus 5. Abson Method Apparatus 6. ASTM D 2171 Apparatus 7. Sample Pellet Die 8. Sample Pellet Holder 21 23 27 29 38 40 9. GPC of Lufkin Exxon AC-20 Extracted by Two Methods . . . . . . . . . . . . . . . . 46 10. GPC of Dickens Exxon AC-20 51...

Martin, Kenneth Lloyd

1988-01-01T23:59:59.000Z

2

Asphalt Oxidation Kinetics and Pavement Oxidation Modeling  

E-Print Network [OSTI]

Most paved roads in the United States are surfaced with asphalt. These asphalt pavements suffer from fatigue cracking and thermal cracking, aggravated by the oxidation and hardening of asphalt. This negative impact of asphalt oxidation on pavement...

Jin, Xin

2012-07-16T23:59:59.000Z

3

Catalytic dehydrogenation of ethane  

E-Print Network [OSTI]

phase of a more thorough investigation of the kinetics of the dehydrogenation of ethane over a chromia-alumina catalyst. This catalyst was prepared by impregnation of activated alumina with a decomposable chromium salt. Experiments were carried out... and butanes using a chromia-alumina catalyst. They reported good results with alumina alone, but showed that impregnation of the aluzd. na with decomposable chromium salts increased the activity of the catalyst considerably. Feed to their reaction chamber...

Place, Harold Glenn

1955-01-01T23:59:59.000Z

4

Lubricant compositions  

SciTech Connect (OSTI)

Lubricant compositions adapted for use under extreme pressure conditions are disclosed. They comprise a major proportion of a lubricating grease, and a minor proportion of an additive consisting essentially of a solid, oil insoluble arylene sulfide polymer, and a metal salt, particularly an alkali metal or alkaline earth metal salt, particularly an alkali metal or alkaline earth metal salt of a phosphorus acid, for example, mono- or dicalcium phosphate, or an alkali metal or alkaline earth metal carbonate exemplified by calcium carbonate, or a mixture of such a phosphate salt and carbonate.

Johnson, A.L.; Lawson, R.D.; Root, J.C.

1981-12-15T23:59:59.000Z

5

Tethered Lubricants  

SciTech Connect (OSTI)

We have performed extensive experimental and theoretical studies of interfacial friction, relaxation dynamics, and thermodynamics of polymer chains tethered to points, planes, and particles. A key result from our tribology studies using lateral force microscopy (LFM) measurements of polydisperse brushes of linear and branched chains densely grafted to planar substrates is that there are exceedingly low friction coefficients for these systems. Specific project achievements include: (1) Synthesis of three-tiered lubricant films containing controlled amounts of free and pendent PDMS chains, and investigated the effect of their molecular weight and volume fraction on interfacial friction. (2.) Detailed studies of a family of hairy particles termed nanoscale organic hybrid materials (NOHMs) and demonstration of their use as lubricants.

Archer, Lynden

2010-09-15T23:59:59.000Z

6

Engine lubrication oil aeration  

E-Print Network [OSTI]

The lubrication system of an internal combustion engine serves many purposes. It lubricates moving parts, cools the engine, removes impurities, supports loads, and minimizes friction. The entrapment of air in the lubricating ...

Baran, Bridget A. (Bridget Anne)

2007-01-01T23:59:59.000Z

7

Asphalt deposition in miscible floods  

E-Print Network [OSTI]

. ACKNOWLEDGMENTS. . 22 23 8. REFERENCES. 24 9. APPENDIX. 26 LIST OF TABLES Table Page I II IV Properties of the Crude Oils Studied Average Core Properties for Different Tests Average Perrneabilities of Different Sections of Core Before and After... Displacement with Liquefied Petroleum Gas Percent Reduction in Permeability in Different Sections of Core Due to Asphalt Deposition Average Recoveries of Four Crude Oils and Increase in Swept Area due to Plugging by Asphalt Deposition 27 29 ABSTRACT...

Hasan, Syed Mir Ahmed

1964-01-01T23:59:59.000Z

8

Chemical characterization of beach asphalts  

E-Print Network [OSTI]

on beaches, since the residue is usually weathered, and most properties of the original crude oil or residual fuel oil have been altered. Along the Texas coast beaches, from Galveston to the Rio Grande, one can find oil residues which range in size from... distillation of organic material, usually coal (Abraham 1960). Crude oil, when weathered, so as to lose its volatile constituents, becomes viscous or semi-solid, and is known as asphalt. Further weathering can lead to formation of hard asphalt...

May, Lloyd Alexander

1973-01-01T23:59:59.000Z

9

E-Print Network 3.0 - asphalt binder extraction Sample Search...  

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

of asphalt binders for preparing asphalt... during manufacturing, placing, and compacting hot mix asphalt concrete (HMAC), and, therefore, must... . Asphalt-aggregate...

10

LUBRICANTS AND HYDRAULIC FLUIDS  

E-Print Network [OSTI]

Contents) Major General, USA Chief of Staff i Table of Contents Purpose ........................................................ 1-1 1-1 Applicability .................................................... 1-2 1-1 References ...................................................... 1-3 1-1 Distribution Statement ............................................. 1-4 1-1 Scope ......................................................... 1-5 1-2 Friction ........................................................ 2-1 2-1 Wear .......................................................... 2-2 2-4 Lubrication and Lubricants ......................................... 2-3 2-6 Hydrodynamic or Fluid Film Lubrication ............................... 2-4 2-6 Boundary Lubrication ............................................. 2-5 2-8 Extreme Pressure (EP) Lubrication ................................... 2-6 2-9 Elastohydrodynamic (EHD) Lubrication ................................ 2-7 2-9 Oil R

Engineer Manual Department

11

A thermodynamic approach for compaction of asphaltic composites  

E-Print Network [OSTI]

results. Modeling asphalt concrete compaction, and also the ability to thereby predict response of mixes, is of great importance to the pavement industry. Asphalt concrete exhibits nonlinear response even at small strains and the response of asphalt...

Koneru, Saradhi

2009-05-15T23:59:59.000Z

12

Improved paving asphalt from Baku crudes  

SciTech Connect (OSTI)

An improved paving asphalt has been obtained from commercial BN-60/90 asphalt by adding certain components that are waste materials in petroleum refining: a still residue from the distillation of naphthenic acids to improve adhesion properties, asphalt obtained in deasphalting vacuum resid to improve ductility and impart freeze resistance, and a dialkylnaphthalene as a pour point depressant. Three different blend formulations were prepared by melting and mixing and analyzed for their physicochemical properties. The possibility was also investigated of expanding the raw material base for paving asphalts by including certain waste materials obtained in refining Baku crudes.

Allakhverdiev, A.A.; Kuliev, R.B.; Samedova, F.I.

1988-03-01T23:59:59.000Z

13

Ionic Liquids as Novel Engine Lubricants or Lubricant Additives...  

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

Additives Ionic Liquids as Novel Engine Lubricants or Lubricant Additives Bench test results showed that compared with fully-formulated engine oils, selected low-viscosity...

14

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

15

Fuel & Lubricant Technologies  

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

May 15, 2012 Kevin Stork, Team Lead VTP Annual Merit Review VTP Fuel & Lubricant Technologies eere.energy.gov 2 | Vehicle Technologies Program Mission Enable advanced combustion...

16

Fuel and Lubricant Effects  

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

Fuel and Lubricant Effects Fuels Research, DOE agreements 13415, 13425 Bruce G. Bunting, Mike Bunce, Kukwon Cho, Jun Qu, Robert Crawford, Jim Szybist, Scott Sluder, John Storey,...

17

Life Cycle Assessment of Reclaimed Asphalt Pavement  

E-Print Network [OSTI]

Processing Disposal Other 34% 4% 5% 15% 5% 36% 1% 15 % RAP Bitumen Aggregates Transportation Superheating RAP% RAP in new hot-mix asphalt (HMA) #12;Recycling Process #12;Road Ages #12;Create Reclaimed Asphalt Pavement (RAP) Courtesy of http://myconstructionphotos.smugmug.com/ RAP #12;Transport Back to the Plant

Minnesota, University of

18

Compatibilizer for crumb rubber modified asphalt  

SciTech Connect (OSTI)

The United States of America discards more than 300 million tires each year, and out of that a large fraction of the tires is dumped into stock piles. This large quantity of tires creates an environmental problem. The use of scrap tires is limited. There is a usage potential in such fields as fuel for combustion and Crumb Rubber-Modified Asphalt binder (CRMA). The use of crumb rubber in modifying asphalt is not a new technique; it is been used since early 1960 by pavement engineers. Crumb rubber is a composite of different blends of natural and synthetic rubber (natural rubber, processing oils, polybutadiene, polystyrene butadiene, and filler). Prior research had concluded that the performance of crumb rubber modified asphalt is asphalt dependent. In some cases it improves the Theological properties and in some cases it degrades the properties of modified asphalt.

Labib, M.E. [New Jersey Institute of Technology, Newark, NJ (United States); Memon, G.M.; Chollar, B.H. [Federal Highway Administration, McLean, VA (United States)

1996-12-31T23:59:59.000Z

19

Materials characterization of asphalt and polymer modified asphalt  

E-Print Network [OSTI]

specimen mold made of aluminum ? ? ? ? ? ? ? ? ? ? - 28 5. Strain sweep of Santa Maria AC10/AR4000 at 100 rad/sec --- 33 6. Strain sweep of Conoco AC10 at 10 rad/sec ------------- 34 7. Stress relaxation modulus of AAM grade asphalt at 25'C --- 37 8.... The verification of Cox-Merz rule for Santa Maria AC6/AR2000 at 40'C- 9. The master curve of Santa Maria AC6/Muehlstein LDPE shifted to 25'C showing the errors 10. Master curve (G') of Santa Maria AC6 shifted to 25'C ? ? ? ? ? 43 11. Master curve of Santa...

Paramasivam, Mohan

1992-01-01T23:59:59.000Z

20

Winter Performance and Maintenance of Porous Asphalt Pavements  

E-Print Network [OSTI]

Concrete (HSG-B)Porous Asphalt (HSG-C) #12;Cold Climate Performance Results #12;12 Porous Asphalt SurfaceWinter Performance and Maintenance of Porous Asphalt Pavements Robert M. Roseen, Ph.D., P.E., D impacts for new development and reverse impacts in areas with redevelopment. #12;Porous Asphalt Design

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

E-Print Network 3.0 - asphalt rubber Sample Search Results  

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

in rubberised asphalt mixtures containing reclaimed Summary: investigation of moisture damage in rubberised asphalt mixtures containing reclaimed asphalt pavement Xiao FP......

22

Compositional evaluation of asphalt binder recycling agents  

E-Print Network [OSTI]

Several experiments were performed to determine how recycling agent composition affects the high, intermediate, and low temperature properties as well as long term oxidative aging characteristics of recycled asphalt blends. Specifically, several...

Madrid, Richard Charles

1997-01-01T23:59:59.000Z

23

Rapid determination of actinides in asphalt samples  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

A new rapid method for the determination of actinides in asphalt samples has been developed that can be used in emergency response situations or for routine analysis If a radiological dispersive device (RDD), Improvised Nuclear Device (IND) or a nuclear accident such as the accident at the Fukushima Nuclear Power Plant in March, 2011 occurs, there will be an urgent need for rapid analyses of many different environmental matrices, including asphalt materials, to support dose mitigation and environmental clean up. The new method for the determination of actinides in asphalt utilizes a rapid furnace step to destroy bitumen and organics present in the asphalt and sodium hydroxide fusion to digest the remaining sample. Sample preconcentration steps are used to collect the actinides and a new stacked TRU Resin + DGA Resin column method is employed to separate the actinide isotopes in the asphalt samples. The TRU Resin plus DGA Resin separation approach, which allows sequential separation of plutonium, uranium, americium and curium isotopes in asphalt samples, can be applied to soil samples as well.

Maxwell, Sherrod L.; Culligan, Brian K.; Hutchison, Jay B.

2014-01-12T23:59:59.000Z

24

An experimental investigation into oil mist lubrication  

E-Print Network [OSTI]

Oil mist lubrication offers many advantages over sump lubrication. Unfortunately, mist lubrication generates sub-micrometer sized aerosol particles (fines) that escape from the oil mist lubrication system. These particles are an environmental hazard...

Kannan, Krishna

2000-01-01T23:59:59.000Z

25

Power system with an integrated lubrication circuit  

DOE Patents [OSTI]

A power system includes an engine having a first lubrication circuit and at least one auxiliary power unit having a second lubrication circuit. The first lubrication circuit is in fluid communication with the second lubrication circuit.

Hoff, Brian D. (East Peoria, IL); Akasam, Sivaprasad (Peoria, IL); Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Lane, William H. (Chillicothe, IL)

2009-11-10T23:59:59.000Z

26

Synthesis of new high performance lubricants and solid lubricants  

SciTech Connect (OSTI)

Synthesis and testing was begun on a number of new classes of lubricants: perfluoropolyethers (branching effects), perfluoromethylene oxide ethers, chlorine-substituted fluorocarbon polyethers, fluorine-containing branched ether lubricants, glycerine- based perfluoropolyesters, perfluoro epoxy ether chains, etc.

Lagow, R.J.

1993-04-01T23:59:59.000Z

27

Moisture Diffusion in Asphalt Binders and Fine Aggregate Mixtures  

E-Print Network [OSTI]

cost in highway maintenance and vehicle operations. One key mechanism of how moisture reaches the asphalt-aggregate interface is by its permeation or diffusion through the asphalt binder or mastic. Different techniques are available for diffusion...

Vasconcelos, Kamilla L.

2011-08-08T23:59:59.000Z

28

Characterization of Fatigue Cracking and Healing of Asphalt Mixtures  

E-Print Network [OSTI]

Fatigue cracking is one of the most common distresses of asphalt pavements, whereas healing is a counter process to cracking which alleviates cracking damage and extends fatigue life of asphalt pavements. Most of existing methods to characterize...

Luo, Xue

2012-07-16T23:59:59.000Z

29

Imparting Electrical Conductivity into Asphalt Composites Using Graphite  

E-Print Network [OSTI]

Electrically conductive asphalt composites have immense potential for various multifunctional applications such as self-healing, self-sensing, snow and ice removal, and energy harvesting, and controlling asphalt conductivity is the first step...

Baranikumar, Aishwarya

2013-07-09T23:59:59.000Z

30

Damage analysis in asphalt concrete mixtures based on parameter relationships  

E-Print Network [OSTI]

Asphalt pavements experience damage due to traffic loading under various environmental conditions. Damage can be caused by viscopl microcracks, fracture due to fatigue cracking, or fracture due to thermal cracking. Asphalt pavements have...

Song, Injun

2004-11-15T23:59:59.000Z

31

An investigation of the use of tire rubber in asphalt  

E-Print Network [OSTI]

-rubber binder. The selected variables chosen are curing time, curing temperature, rubber content (weight percent), rubber particle size, base asphalt type, and carbonyl area. Results confirmed that the addition of rubber increased the viscosity of the asphalt...

Koo, Heamo Lee

1996-01-01T23:59:59.000Z

32

TECHNICAL POLLUTION PREVENTION GUIDE FOR ASPHALT PREPARATION OPERATIONS  

E-Print Network [OSTI]

Delivery, Storage and Cold Feed . . . . . . . . . . . . . 12 2.3.2 Liquid Asphalt Delivery, Storage . . . . . . . . . . . . . . . . . . . . . . 4 2 INDUSTRY PROFILE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 ASPHALT and Heating . . . . . . . . . . . . 12 2.3.3 Cold Feed Drying and Heating

33

Controlling Thermal Properties of Asphalt Concrete and its Multifunctional Applications  

E-Print Network [OSTI]

) by controlling thermal properties of the construction materials. To change thermal properties of asphalt concrete, expanded polypropylene (EPP) pellet and graphite were selected as the additives and mixed into asphalt concrete. Experimental tests are classified...

Shi, Xijun

2014-08-10T23:59:59.000Z

34

Evaluation of Rexene polymers in hot mixed asphalt concrete  

E-Print Network [OSTI]

Committee: Dr. Dallas N. Little The objective of this research was to provide a comprehensive characterization of asphalt binders and paving mixtures modified with four polymers produced by the Rexene Products Company (Odessa, Texas). The four polymers... on control asphalt cements and polymer modified asphalt cements to quantify the effects of the Rexene polymers. Most importantly, the binder study was designed to determine the temperature susceptibility of the binders. Asphalt cements from three...

Rodriguez, Mary Anne Reese

1991-01-01T23:59:59.000Z

35

The curing of asphalt with rubber and its effect on the physical and chemical properties of asphalt-rubber binders  

E-Print Network [OSTI]

The objective of this research was to develop a potentially useful asphalt-rubber binder using the curing process. For the curing process, six parameters, which altered the physical and chemical properties of the asphalt-rubber binder, were tested...

Chun, Jay Sung

1995-01-01T23:59:59.000Z

36

Constant displacement rate experiments and constitutive modeling of asphalt mixtures  

E-Print Network [OSTI]

and predicting its response is of great importance to the pavement industry. More than 90 percent of the US Highways uses asphalt concrete as a pavement material. Asphalt concrete exhibits nonlinear response even at small strains and the response of asphalt...

Hariharakumar, Pradeep

2006-04-12T23:59:59.000Z

37

Disk-shaped Compact Tension Test for Asphalt Concrete Fracture  

E-Print Network [OSTI]

Disk-shaped Compact Tension Test for Asphalt Concrete Fracture by M.P.Wagoner, W.G. Buttlar and G geometry is the ability to test cylindrical cores obtained from in-place asphalt concrete pavements finalizing the specimen geometry, a typical asphalt concrete surface mixture was tested at various

Paulino, Glaucio H.

38

Evaluation of polyethylene-modified asphalt blends  

E-Print Network [OSTI]

aggregate and asphalt modified with LDPE (binder contents of 4. 8%%u and 5. 87'). 42 Table 9. Summary of statistical parameters derived from IDT testing on crushed granite mixtures bound with AC-20 + LDPE (4. 8%, and 5. 8/ binder). 46 Table 10. Summary... of creep to rupture data for crushed granite mixtures. 71 Table 11. Summary of the results of IDT repeated load fatigue testing of river gravel mixtures bound with Texaco asphalt: AC- 10, AC-10 + LDPE and AC-20. Table 12. K, ' and n, values of river...

Consuegra Granger, Fernando

1990-01-01T23:59:59.000Z

39

The potential use of tar sand bitumen as paving asphalt  

SciTech Connect (OSTI)

In this paper several research reports describing the preparation of potential paving asphalts from tar sand bitumen are reviewed and the results of the studies compared. The tar sand asphalts described in the studies were prepared from 1) hot water-recovered bitumen from deposits near San Luis Obispo, California (Edna deposits), and deposits near Vernal and Sunnyside, Utah; and 2) bitumen recovered from the Northwest Asphalt Ridge deposits near Vernal, Utah, by both in situ steamflood and in situ combustion recovery processes. Important properties of the tar sand asphalts compare favorably with those of specification petroleum asphalts. Laboratory data suggest that some tar sand asphalts may have superior aging characteristics and produce more water-resistant paving mixtures than typical petroleum asphalts.

Petersen, J.C.

1988-01-01T23:59:59.000Z

40

The potential use of tar sand bitumen as paving asphalt  

SciTech Connect (OSTI)

The properties of several tar sand asphalts prepared in past studies by several different investigators were compared with each other and with the properties of petroleum asphalts. These results were reviewed and discussed with regard to the potential use of tar sand bitumen in pavement applications. The data show that tar sand bitumen has good potential for use in highway pavements that meet today's performance specifications. No deficiencies in the tar sand asphalts were found that would be expected to seriously affect performance. On the other hand, the data indicate that some tar sand asphalts may have superior aging characteristics, being relatively resistant to oxidative age hardening compared with typical petroleum asphalts. Asphalt-aggregate mixtures prepared using two tar sand asphalts also showed acceptable strength properties and excellent resistance to moisture-induced damage.

Petersen, J.C.

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Identification of asphalt binder properties that affect cracking performance of hot mixed asphalt concrete pavements  

E-Print Network [OSTI]

. Traffic used these "interim" pavements until the spring of 1988 when the 51-mm surface courses were placed in both the northbound and the southbound lanes. The four asphalt additives used in Texarkana include: Goodyear 5812 - styrene butadiene rubber... exception. Chemkrete was removed from the market by LBD, Inc. shortly after construction of the base course. The surface course placed on the Chemkrete treated base course contained 3'/o Goodyear? latex in the asphalt. Chemkrete was metered into an in...

Hastings, Charles Patrick

1997-01-01T23:59:59.000Z

42

Anisotropic Characterization of Asphalt Mixtures in Compression  

E-Print Network [OSTI]

Rutting is one of the major distresses in asphalt pavements and it increases road roughness and traps water, which leads to wet-weather accidents due to the loss of tire-pavement friction and hydroplaning. The fundamental mechanisms of rutting have...

Zhang, Yuqing 1983-

2012-10-08T23:59:59.000Z

43

Synthesis of new high performance lubricants and solid lubricants  

SciTech Connect (OSTI)

We have started to make a number of classes of new perfluoropolyethers both in the solid lubricant area and liquid lubricant area. We have prepared some chlorofluoroethers for testing as additives for normal petroleum and polyalphaolefin lubricants which are so widely used in the United States. Perfluoropolyethers are not soluble in hydrocarbons. On the other hand, these chlorofluoropolyethers are soluble in substantial amounts in simple hydrocarbons. These are uniquely capable of being additives that flow with the motor oil or the polyalphaolefin.

Lagow, R.J.

1992-03-01T23:59:59.000Z

44

E-Print Network 3.0 - asphalt technology development Sample Search...  

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

...7 Kicking the Asphalt Around: Foamed Asphalt... Co-Products and Bio Oil The Payback of Green Warm-Mix Asphalt at MnROAD Video of several Source:...

45

Compaction Effects on Uniformity, Moisture Diffusion, and Mechanical Properties of Asphalt Pavements  

E-Print Network [OSTI]

Field compaction of asphalt mixtures is an important process that influences performance of asphalt pavements; however there is very little effort devoted to evaluate the influence of compaction on the uniformity and properties of asphalt mixtures...

Kassem, Emad Abdel-Rahman Ahmed

2011-08-08T23:59:59.000Z

46

Development and numerical implementation of nonlinear viscoelastic-viscoplastic model for asphalt materials  

E-Print Network [OSTI]

pavements is illustrated using finite element simulations. The constitutive model developed in this study can describe the behavior of asphalt materials (asphalt binder, asphalt mastic and mixtures) under various testing conditions. This study also achieved...

Huang, Chien-Wei

2009-05-15T23:59:59.000Z

47

The effect of asphalt deposition on recovery of oil by a pentane slug  

E-Print Network [OSTI]

":ty reduction increases, in general, with the increase in amount of, asphalt contained ir the oil. The increases in recovery at breakthrough due to asphalt deposition were noted for four asphaltic crude oils and were compared to those of asphalt-free refined... substantial range, the gain in recovery at breakthrough of asphaltic oils over refined oils of the same viscosity increases with increase in size of slug used. This is attributed to more favorable mobility ratios resulting from asphalt deposition during...

Bhagia, Nanik S

1965-01-01T23:59:59.000Z

48

E-Print Network 3.0 - asphalt pavement rap Sample Search Results  

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

Center Collection: Engineering 23 ENVIRONMENTAL TESTING OF MUNICIPAL SOLID WASTE ASH-AMENDED ASPHALT Summary: and control asphalts, and the pavements alI performed well...

49

E-Print Network 3.0 - asphalt mix design Sample Search Results  

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

asphalt mixes must be understood. Mould... the micromechanical processes that lead to fracture of asphalt mixes. Experimental and numerical analyses... will be performed to study...

50

E-Print Network 3.0 - asphalt stripping final Sample Search Results  

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

at Austin Summary: during manufacturing, placing, and compacting hot mix asphalt concrete (HMAC), and, therefore, must... . Asphalt-aggregate mixtures were pre- pared...

51

Microstructural Characterization of Material Properties and Damage in Asphalt Composites  

E-Print Network [OSTI]

MICROSTRUCTURAL CHARACTERIZATION OF MATERIAL PROPERTIES AND DAMAGE IN ASPHALT COMPOSITES A Thesis by SARA MOHAMMAD KHORASANI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... Engineering Copyright 2013 Sara Mohammad Khorasani ii ABSTRACT Asphalt composites are used to construct 90% of roads in the United States. These composites consist of asphalt binder, which is a product of the refinery process of oil, aggregates...

Mohammad Khorasani, Sara

2013-05-03T23:59:59.000Z

52

Characterization of road asphalt using Gel Permeation Chromatography  

E-Print Network [OSTI]

of research in the ares of asphalt chemistry. Brulh has proposed two theoretical extremes, a sol state and a gel state, to describe the condition of asphalts. In a sol state, asphaltene micelles are widely dispersed and do not interact a great deal. In a... December 1987 Major Subject: Chemical Engineering CHARACTERIZATION OF ROAD ASPHALT USING GEL PERMEATION CHROMATOGRAPHY A Thesis by GUY RANDAL DONALDSON Approved as to style and content by: Jerr A. Bullin hairm of Committee) Char e G. Glover...

Donaldson, Guy Randal

1987-01-01T23:59:59.000Z

53

Effect of catalyst structure on oxidative dehydrogenation of ethane and propane on alumina-supported vanadia  

E-Print Network [OSTI]

catalysts: (a) ethane ODH, (b) propane ODH (663 K, 14 kPa CDehydrogenation of Ethane and Propane on Alumina-Supporteddehydrogenation of ethane and propane. UV-visible and Raman

Argyle, Morris D.; Chen, Kaidong; Bell, Alexis T.; Iglesia, Enrique

2001-01-01T23:59:59.000Z

54

About Total Lubricants USA, Inc. Headquartered in Linden, New Jersey, Total Lubricants USA provides  

E-Print Network [OSTI]

New Jersey, Total Lubricants USA provides advanced quality industrial lubrication productsAbout Total Lubricants USA, Inc. Headquartered in Linden, New Jersey, Total Lubricants USA provides. A subsidiary of Total, S.A., the world's fourth largest oil company, Total Lubricants USA still fosters its

Fisher, Kathleen

55

A STUDY ON SPHERICAL EXPANDING FLAME SPEEDS OF METHANE, ETHANE, AND METHANE/ETHANE MIXTURES AT ELEVATED PRESSURES  

E-Print Network [OSTI]

High-pressure experiments and chemical kinetics modeling were performed for laminar spherically expanding flames for methane/air, ethane/air, methane/ethane/air and propane/air mixtures at pressures between 1 and 10 atm and equivalence ratios...

De Vries, Jaap

2010-07-14T23:59:59.000Z

56

Recycling asphalt overview of more than 25 years of use  

E-Print Network [OSTI]

1 Recycling asphalt overview of more than 25 years of use in France Y. Brosseaud ­ LCPC hal with ring for recycling ­ Average rate with high proportion : 30 to 50% ­ Used of rejuvenators (soft oil,version1-20May2011 #12;4 Hot recycling asphalt on mixing plant Recycling in place in hot or cold

Paris-Sud XI, Université de

57

Recycled rubber, aggregate, and filler in asphalt paving mixtures. Transportation research record  

SciTech Connect (OSTI)

;Contents(Partial): Evaluation Systems for Crumb Rubber Modified Binders and Mixtures; Hot Mix Asphalt Rubber Applications in Virginia; Evaluation of Pyrolized Carbon Black from Scrap Tires as Additive in Hot Mix Asphalt; Use of Scrap Tire Chips in Asphaltic Membrane; Effects of Mineral Fillers on Properties of Stone Matrix Asphalt Mixtures; and Quantitative Analysis of Aggregate Based on Hough Transform.

NONE

1996-12-31T23:59:59.000Z

58

Relationship Between Surface Free Energy and Total Work of Fracture of Asphalt Binder and Asphalt Binder-Aggregate Interfaces  

E-Print Network [OSTI]

is the surface free energy of the asphalt binder and the aggregate. Surface free energy, which is a thermodynamic material property, is directly related to the adhesive bond energy between the asphalt binder and the aggregate as well as the cohesive bond energy...

Howson, Jonathan Embrey

2012-10-19T23:59:59.000Z

59

Defining the role of elastic lubricants and micro textured surfaces in lubricated, sliding friction  

E-Print Network [OSTI]

Solutions for reducing friction in sliding, lubricated systems include modifying lubricant rheology using polymers and adding a micro-scale texture to the sliding surfaces, but the mechanism of how lubrication properties ...

Hupp, Sara J. (Sara Jean), 1979-

2008-01-01T23:59:59.000Z

60

Vehicle Technologies Office: 2012 Fuel and Lubricant Technologies...  

Energy Savers [EERE]

2 Fuel and Lubricant Technologies R&D Annual Progress Report Vehicle Technologies Office: 2012 Fuel and Lubricant Technologies R&D Annual Progress Report The Fuel & Lubricant...

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Method for lubricating contacting surfaces  

DOE Patents [OSTI]

A method is provided for tribological lubrication of sliding contact surfaces, where two surfaces are in contact and in motion relative to each other, operating in a vapor-phase environment containing at least one alcohol compound at a concentration sufficiently high to provide one monolayer of coverage on at least one of the surfaces, where the alcohol compound continuously reacts at the surface to provide lubrication.

Dugger, Michael T. (Tijeras, NM); Ohlhausen, James A. (Albuquerque, NM); Asay, David B. (Boalsburg, PA); Kim, Seong H. (State College, PA)

2011-12-06T23:59:59.000Z

62

Improvements to a Transport Model of Asphalt Binder Oxidation in Pavements: Pavement Temperature Modeling, Oxygen Diffusivity in Asphalt Binders and Mastics, and Pavement Air Void Characterization  

E-Print Network [OSTI]

Although evidence is mounting that asphalt binder oxidizes in pavements, and that oxidation and subsequent hardening of asphalt binder has a profound effect on pavement durability, important implementation issues remain to be better understood...

Han, Rongbin

2012-07-16T23:59:59.000Z

63

Analyses of sulfur-asphalt field trials in Texas  

E-Print Network [OSTI]

128 LIST OF FIGURES FIGURE PAGF Layout of SNPA sulfur bitumen binder pavem nt test ? U. S. Highway 69, Lufkin, Texas 15 Col 1oi d mi 1 1 furnished by SNPA for preparation of sul fur-asphalt emulsions View of mixing station showing sulfur... designed to investigate the advantage of using a colloid mill to prepare sulfur-asphalt binders as compared to comingling the asphalt and molten sulfur in a pipeline leading directly to the pug mill. After only six months of testing, the results...

Newcomb, David Edward

1979-01-01T23:59:59.000Z

64

Composition of paraffinic and naphthenic hydrocarbons in petroleum asphalts  

SciTech Connect (OSTI)

Uses a combination of chromatographic, chemical, and spectroscopic methods to determine the composition of the paraffinic and naphthenic hydrocarbons recovered from asphalts. Monitors the completeness of separation of the hydrocarbons from the aromatics on the basis of UV spectra. Finds that in the mixture of adduct-forming hydrocarbons, along with the n-paraffins there were admixtures of isoparaffins and longchain alkylnaphthenes. Concludes that a comparison of the structural-group composition of the asphalt fractions from the different crudes shows that there are only slight differences in the structure of the paraffinic/naphthenic hydrocarbons present in these asphalts, particularly with regard to those hydrocarbons that do not react with urea.

Botvin'eva, A.M.; Dubkova, R.V.; Shkredova, N.A.

1982-11-01T23:59:59.000Z

65

2014 Annual Merit Review Results Report - Fuels & Lubricants...  

Energy Savers [EERE]

Fuels & Lubricants Technologies 2014 Annual Merit Review Results Report - Fuels & Lubricants Technologies Merit review of DOE Vehicle Technologies research activities...

66

Ionic Liquids as Novel Lubricants and /or Lubricant Additives  

SciTech Connect (OSTI)

This ORNL-GM CRADA developed ionic liquids (ILs) as novel lubricants or oil additives for engine lubrication. A new group of oil-miscible ILs have been designed and synthesized with high thermal stability, non-corrosiveness, excellent wettability, and most importantly effective anti-scuffing/anti-wear and friction reduction characteristics. Mechanistic analysis attributes the superior lubricating performance of IL additives to their physical and chemical interactions with metallic surfaces. Working with a leading lubricant formulation company, the team has successfully developed a prototype low-viscosity engine oil using a phosphonium-phosphate IL as an anti-wear additive. Tribological bench tests of the IL-additized formulated oil showed 20-33% lower friction in mixed and elastohydrodynamic lubrication and 38-92% lower wear in boundary lubrication when compared with commercial Mobil 1 and Mobil Clean 5W-30 engine oils. High-temperature, high load (HTHL) full-size engine tests confirmed the excellent anti-wear performance for the IL-additized engine oil. Sequence VID engine dynamometer tests demonstrated an improved fuel economy by >2% for this IL-additized engine oil benchmarked against the Mobil 1 5W-30 oil. In addition, accelerated catalyst aging tests suggest that the IL additive may potentially have less adverse impact on three-way catalysts compared to the conventional ZDDP. Follow-on research is needed for further development and optimization of IL chemistry and oil formulation to fully meet ILSAC GF-5 specifications and further enhance the automotive engine efficiency and durability.

Qu, J. [ORNL; Viola, M. B. [General Motors Company

2013-10-31T23:59:59.000Z

67

asphalt concrete pavement: Topics by E-print Network  

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

this thesis. It included the following tasks: investigation of a testing and grading system for grading asphalt binder residues... Hoyt, Denise 2012-07-16 8 Full-Depth Pavement...

68

asphaltic concrete pavement: Topics by E-print Network  

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

this thesis. It included the following tasks: investigation of a testing and grading system for grading asphalt binder residues... Hoyt, Denise 2012-07-16 8 Full-Depth Pavement...

69

asphalt concrete pavements: Topics by E-print Network  

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

this thesis. It included the following tasks: investigation of a testing and grading system for grading asphalt binder residues... Hoyt, Denise 2012-07-16 8 Full-Depth Pavement...

70

asphaltic concrete pavements: Topics by E-print Network  

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

this thesis. It included the following tasks: investigation of a testing and grading system for grading asphalt binder residues... Hoyt, Denise 2012-07-16 8 Full-Depth Pavement...

71

Evaluation of Moisture Susceptibility of Warm Mix Asphalt  

E-Print Network [OSTI]

, the results from this study suggest that the inclusion of recycled asphalt pavement (RAP) or an anti-stripping agent may alleviate possible moisture susceptibility issues in the early life during wet, winter weather conditions. While some laboratory test...

Garcia Cucalon, Maria Lorena

2013-05-03T23:59:59.000Z

72

Prediction of Reflection Cracking in Hot Mix Asphalt Overlays  

E-Print Network [OSTI]

either asphalt pavement or jointed concrete pavement in all four major climatic zones are discussed in this dissertation. The results of this calculated mechanistic approach showed its ability to efficiently reproduce field observations of the growth...

Tsai, Fang-Ling

2011-02-22T23:59:59.000Z

73

Toward an Improved Model of Asphalt Binder Oxidation in Pavements  

E-Print Network [OSTI]

Asphalt binder oxidation in pavements has been proven to be an ongoing process throughout a pavement's service life. Understanding the nature of the oxidation process is a critical step toward better pavement design to achieve greater pavement...

Prapaitrakul, Nikornpon

2011-02-22T23:59:59.000Z

74

Recycling asphaltic concrete with sulphur as a supplemental binder  

E-Print Network [OSTI]

RECYCLING ASPHALTIC CONCRETE WITH SULPHUR AS A SUPPLEMENTAL BINDER A Thesis by ROBERT WILLIAM BARNETT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1976 Major Subject: Civil Engineering RECYCLING ASPHALTIC CONCRETE WITH SULPHUR AS A SUPPLEMENTAL BINDER A Thesis by ROBERT WILLIAM BARNETT Approved as to style and content by: :) (Chairm o I ommit tee) (M ber) Mem er) August 1976...

Barnett, Robert William

1976-01-01T23:59:59.000Z

75

Predicting the fatigue life of asphalt concrete overlay systems  

E-Print Network [OSTI]

PREDICTING THE FATIGUE LIFE OF ASPHALT CONCRETE OVERLAY SYSTEMS A Thesis by FREDERICK PHILIP GERMANN Submitted to the Graduate College of Texas A&M University in Partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May... 1979 Major Subject: Civil Engineering PREDICTING THE FATIGUE LIFE OF ASPHALT CONCRETE OVERLAY SYSTEMS A Thesis by FREDERICK PHILIP GERMANN Approved as to style and content by: (Chair n of Commit e) (Head of Department) (Member) (Member) May...

Germann, Frederick P

1979-01-01T23:59:59.000Z

76

Fiber reinforcement of asphalt concrete using cow manure  

E-Print Network [OSTI]

. Specimens were made according to the Marshall Method of Mixture Design and tested for 1) Marshall Stability 2) Hveem Stability and 3) Hater Susceptibil- ity. Test results indicated that 4. 4 percent cow manure by volume of rhe total aggregate when used... Voids in Mineral Aggregate 11 LIST OF FIGURES Figures Page l. 2 l. 3 1. 4 1. 5 1. 6 Determination of Optimum Asphalt Content by the Marshall Method Determination of Optimum Asphalt Content by the Marshall Method Determination of Optimum...

Bakar, Mohammed Abu

1976-01-01T23:59:59.000Z

77

Oxygen consumption by asphalt films and resulting viscosity changes  

E-Print Network [OSTI]

OXYGEN CONSUMPTION BY ASPHALT FILNS AND RESULTING VISCOSITY CHANGES A Thesis by FRANK LEE CARTER, JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... Nay 1965 Major Subject: Chemistry OXYGEN CONSUMPTION BY ASPHALT FILMS AND RESULTING VISCOSITY CHANGES A Thesis by FRANK LEE CARTER, JR. Approved as to style and content by: (Chairm of Committee) (H o Depa ( mb ) (Membe May 1965...

Carter, Frank Lee

2012-06-07T23:59:59.000Z

78

Notes 02. Classical Lubrication Theory  

E-Print Network [OSTI]

Performance of 1D-Tilting Pad Bearing U w load h1 h2 h(x) x y lubricant Moving surface s Pad width B L Offset = s/L ?: tilt angle or pad rotation angle pivot Luis San Andres (c) 2006, 2009 film thickess expression hx() h 2 ? 1 ??() x L...ORIGIN 0:= Performance of 1D-Slider Bearing Modern Lubrication Luis San Andres (c) 2009 y x Topview P=0 P=0 P=0 P=0 L W h1 h2 U L B z x Sideview (SI units) hx() h 2 ? 1 ??() x L ?+ ? ? ? ? ? ? ?:= ? h 1 h 2 := film thickness profile U: surface speed...

San Andres, Luis

2009-01-01T23:59:59.000Z

79

Synthesis of new high performance lubricants and solid lubricants  

SciTech Connect (OSTI)

In our second year of funding we began the testing phase of a number of new classes of lubricants. Three different testing collaborations have already begun and a fourth one is In the works with Dr. Stephen Hsu of the National Institute of Standards and Technology. Dr. Hsu also plans to test some of the same materials for us that Shell Development is studying. With Dr. Bill Jones of NASA, we are studying the effects of branching an high temperature lubricant properties in perfluoropolyethers, Initially Bill Jones is comparing the lubrication and physical properties of perfluorotetraglyme and the following two spherical perfluoropolyethers, Note that one contains a fluorocarbon chain and the other one contains a fluorocarbon ether chain. The synthesis of these was reported in the last progress report. With Professor Patricia Thiel of Iowa State University, we are working on studies of perfluoromethylene oxide ethers and have prepared a series of four of these polyethers to study in collaboration with her research group. These perfluoromethylene oxide ethers have the best low temperature properties of any known lubricants. Thiel's group is studying their interactions with metals under extreme conditions. Thirdly, we have also begun an Interaction with W. August Birke of Shell Development Company in Houston for whom we have already prepared samples of the chlorine-substituted fluorocarbon polyether lubricants whose structures appear on page 54 of our research proposal. Each of these four structures is thought to have potential as lubricant additives to motor oils. We also have underway syntheses of other fluorine-containing branched ether lubricants. These new materials which are also promising as antifriction additives for motor oils appear ahead of the perfluoro additives as Appendix I to the progress report. Additionally for Birke and Shell Development we have at their request prepared the novel compound perfluoro salicylic acid. This synthesis was suggested by the Shell staff who thought that esters of perfluoro salicylic acid might be an excellent antifriction additive for motor oil fuels. One of the best additives currently used in motor oils is the hydrocarbon ester of salicylic acid.

Lagow, Richard J.

1993-04-08T23:59:59.000Z

80

Self lubrication of bitumen froth in pipelines  

SciTech Connect (OSTI)

In this paper I will review the main properties of water lubricated pipelines and explain some new features which have emerged from studies of self-lubrication of Syncrudes` bitumen froth. When heavy oils are lubricated with water, the water and oil are continuously injected into a pipeline and the water is stable when in a lubricating sheath around the oil core. In the case of bitumen froth obtained from the Alberta tar sands, the water is dispersed in the bitumen and it is liberated at the wall under shear; water injection is not necessary because the froth is self-lubricating.

Joseph, D.D. [Univ. of Minnesota, Minneapolis, MN (United States)

1997-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Evaluation of the filler effects on fatique cracking and permanent deformation of asphalt concrete mixtures  

E-Print Network [OSTI]

The addition of hydrated lime to asphalt has shown to be beneficial with an improvement in the Theological properties of the binder, as well as resistance to permanent deformation (rutting) and fatigue cracking of asphalt concrete mixtures...

Izzo, Richard P

1997-01-01T23:59:59.000Z

82

Evaluation of healing in asphalt binders using dynamic shear rheometer and molecular modeling techniques  

E-Print Network [OSTI]

-healing material. It is also well known that healing has a substantial affect on the performance of asphalt mixtures and consequently on the serviceable life of asphalt pavements. For example, shift factors from laboratory experimental data to field observed data...

Bommavaram, Ramamohan Reddy

2009-05-15T23:59:59.000Z

83

A Coupled Micromechanical Model of Moisture-Induced Damage in Asphalt Mixtures: Formulation and Applications  

E-Print Network [OSTI]

The deleterious effect of moisture on the structural integrity of asphalt mixtures has been recognized as one of the main causes of early deterioration of asphalt pavements. This phenomenon, usually referred to as moisture damage, is defined...

Caro Spinel, Silvia

2011-02-22T23:59:59.000Z

84

E-Print Network 3.0 - asphaltic pavements microsurfacing Sample...  

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

for: asphaltic pavements microsurfacing Page: << < 1 2 3 4 5 > >> 1 PROJECT SUMMARY REPORT 1788-S EVALUATION OF THE CAPE SEAL PROCESS Summary: that of typical hot mix asphalt...

85

E-Print Network 3.0 - asphalt concrete core Sample Search Results  

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

southbound on US-169 are coming from the gravel pits, concrete plants, and waste disposal facilities just north Summary: to raveling of the asphalt at the concrete-asphalt...

86

Investigation of Conditions for Moisture Damage in Asphalt Concrete and Appropriate Laboratory Test Methods  

E-Print Network [OSTI]

of Asphalt Concrete-Physical Testing. Final Report, #930-of Asphalt Concrete: Chemical Testing. Alabama Highwayconcrete mixes, it is preferred to use a mix that would have good moisture resistance under laboratory testing

Lu, Qing

2005-01-01T23:59:59.000Z

87

Investigation of Conditions for Moisture Damage in Asphalt Concrete and Appropriate Laboratory Test Methods  

E-Print Network [OSTI]

of Asphalt Concrete-Physical Testing. Final Report no.of Asphalt Concrete: Chemical Testing. Alabama Highwayconcrete mixes, it is preferable to use a mix that would have good moisture resistance under laboratory testing

Harvey, John T; Lu, Qing

2005-01-01T23:59:59.000Z

88

Asphalt Roofing Shingles Into Energy Project Summary Report  

SciTech Connect (OSTI)

Based on a widely cited September, 1999 report by the Vermont Agency of Natural Resources, nearly 11 million tons of asphalt roofing shingle wastes are produced in the United States each year. Recent data suggests that the total is made up of about 9.4 million tons from roofing tear-offs and about 1.6 million tons from manufacturing scrap. Developing beneficial uses for these materials would conserve natural resources, promote protection of the environment and strengthen the economy. This project explored the feasibility of using chipped asphalt shingle materials in cement manufacturing kilns and circulating fluidized bed (CFB) boilers. A method of enhancing the value of chipped shingle materials for use as fuel by removing certain fractions for use as substitute raw materials for the manufacture of new shingles was also explored. Procedures were developed to prevent asbestos containing materials from being processed at the chipping facilities, and the frequency of the occurrence of asbestos in residential roofing tear-off materials was evaluated. The economic feasibility of each potential use was evaluated based on experience gained during the project and on a review of the well established use of shingle materials in hot mix asphalt. This project demonstrated that chipped asphalt shingle materials can be suitable for use as fuel in circulating fluidized boilers and cement kilns. More experience would be necessary to determine the full benefits that could be derived and to discover long term effects, but no technical barriers to full scale commercial use of chipped asphalt shingle materials in these applications were discovered. While the technical feasibility of various options was demonstrated, only the use of asphalt shingle materials in hot mix asphalt applications is currently viable economically.

Jameson, Rex, PE

2008-04-28T23:59:59.000Z

89

Development of asphalts and pavements using recycled tire rubber. Phase 1: technical feasibility. Final report  

SciTech Connect (OSTI)

This report documents the technical progress made on the development of asphalts and pavements using recycled tire rubber.

Bullin, J.A.; Davison, R.R.; Glover, C.J. [and others

1998-01-01T23:59:59.000Z

90

A study of the mixing viscosity of asphalt in hot-mix production  

E-Print Network [OSTI]

Gravity and Absorption of Aggregates. 36 Sieve Analysis of Combined Aggregates 37 Centrifuge Kerosene Equivalent Test Data for Estimated Optimum Asphalt Content . 38 Test Data on Molded Specimens for Optimum Asphalt Content 39 XIII . Test Data... there is available to be filled with asphalt. The Centrifuge Kerosene Equivalent (CKE) Test was performed to 11 determine the estimated optimum asphalt content as a percentage of the 10 The American Association of State Highway Officials, "Standard...

Khan, Md. Musharraf Hossain

1961-01-01T23:59:59.000Z

91

Author's personal copy Unified behaviour of maximum soot yields of methane, ethane and propane  

E-Print Network [OSTI]

Author's personal copy Unified behaviour of maximum soot yields of methane, ethane and propane the current study and the previous measurements in similar flames with methane, ethane, and propane flames

Gülder, ?mer L.

92

Novel Methane, Ethane, and Propane Oxidizing Bacteria at Marine Hydrocarbon Seeps Identified by Stable Isotope Probing  

E-Print Network [OSTI]

Novel Methane, Ethane, and Propane Oxidizing Bacteria at Marine Hydrocarbon Seeps Identified by Stable Isotope Probing Running Title: Novel Methane, Ethane, and Propane Oxidizing Bacteria Section incubating sediment with 13 C-labeled methane, ethane, or propane, we5 confirmed the incorporation of 13 C

Sessions, Alex L.

93

Selective adsorption of ethylene over ethane and propylene over propane in the metalorganic  

E-Print Network [OSTI]

Selective adsorption of ethylene over ethane and propylene over propane in the metal in the energy costs associated with the cryogenic separation of ethylene­ethane and propylene­propane mixtures adsorption data for ethylene, ethane, propylene, and propane at 45, 60, and 80 C for the entire series

94

Effect of pyrolyzed carbon black on asphalt cement. Part 2. Asphalt binder. Final report, September 1993-May 1995  

SciTech Connect (OSTI)

Scrap tires derived from automobiles have become a large environmental problem in the United States. In the study, research is carried out to investigate the potential use of tire-derived pyrolyzed carbon black from scrap tires as an asphalt cement modifier. The asphlat cements used in the research were AC10 and AC20. Penetration and softening point tests were performed to obtain the consistency of the asphalt cements. The pyrolyzed carbon black, as provided by Wolf Industries, was combined with the asphalt cement in the following percentages: 5%, 10%, 15% and 20%. Penetration, softening point and ductility tests were performed to determine the temperature susceptibility of the modified binder as altered by the pyrolyzed carbon black. In order that the results are comparable to previous testing, commercial carbon black purchased from CABOT Industry was also used as a modifier in the tests. The same test procedures were applied to the asphalt cements modified by commercial carbon black. The test results contained in the report illustrate the viability of the pyrolyzed carbon black as an asphalt modifier. Recommendations are provided to facilitate further research on this particular project. A preliminary assessment of a test road using the pyrolyzed carbon is appended.

Zeng, Y.; Lovell, C.W.

1996-02-20T23:59:59.000Z

95

Asphalt emulsion sealing of uranium mill tailings. 1980 annual report  

SciTech Connect (OSTI)

Studies of asphalt emulsion sealants conducted by the Pacific Northwest Laboratory have demonstrated that the sealants are effective in containing radon and other potentially hazardous material within uranium tailings. The laboratory and field studies have further demonstrated that radon exhalation from uranium tailings piles can be reduced by greater than 99% to near background levels. Field tests at the tailings pile in Grand Junction, Colorado, confirmed that an 8-cm admix seal containing 22 wt% asphalt could be effectively applied with a cold-mix paver. Other techniques were successfully tested, including a soil stabilizer and a hot, rubberized asphalt seal that was applied with a distributor truck. After the seals were applied and compacted, overburden was applied over the seal to protect the seal from ultraviolet degradation.

Hartley, J.N.; Koehmstedt, P.L; Esterl, D.J.; Freeman, H.D.; Buelt, J.L.; Nelson, D.A.; Elmore, M.R.

1981-05-01T23:59:59.000Z

96

Synthesis of new high performance lubricants and solid lubricants. Progress report, April 1992--March 1993  

SciTech Connect (OSTI)

Synthesis and testing was begun on a number of new classes of lubricants: perfluoropolyethers (branching effects), perfluoromethylene oxide ethers, chlorine-substituted fluorocarbon polyethers, fluorine-containing branched ether lubricants, glycerine- based perfluoropolyesters, perfluoro epoxy ether chains, etc.

Lagow, R.J.

1993-04-01T23:59:59.000Z

97

High ethylene to ethane processes for oxidative coupling  

DOE Patents [OSTI]

Oxidative coupling of lower alkane to higher hydrocarbon is conducted using catalyst comprising barium and/or strontium component and a metal oxide combustion promoter in the presence of vapor phase halogen component. High ethylene to ethane mole ratios in the product can be obtained over extended operating periods.

Chafin, Richard B. (Hurricane, WV); Warren, Barbara K. (Charleston, WV)

1991-01-01T23:59:59.000Z

98

High ethylene to ethane processes for oxidative coupling  

DOE Patents [OSTI]

Oxidative coupling of lower alkane to higher hydrocarbon is conducted using a catalyst comprising barium and/or strontium component and a metal oxide combustion promoter in the presence of vapor phase halogen component. High ethylene to ethane mole ratios in the product can be obtained over extended operating periods.

Chafin, R.B.; Warren, B.K.

1991-12-17T23:59:59.000Z

99

Why Study Mineralogy? Perspective from Prof. Ethan Baxter on  

E-Print Network [OSTI]

Why Study Mineralogy? Perspective from Prof. Ethan Baxter on CAS ES 222 "Mineralogy" offered IN GEOSCIENCES Mineralogy is a foundational course for students with broad geosciences interests. Mineralogy is a recommended prerequisite for ES301 (Structural Geology) and ES424 (Petrology). Mineralogy

Baxter, Ethan F.

100

Asphalt roofing industry Fourier transform infrared spectroscopy modified bitumen  

SciTech Connect (OSTI)

A Request for Emissions Testing at Four Asphalt Roofing and Processing Facilities was submitted by the US EPA Emission Standards Division (ESD), Minerals and Inorganic Chemicals Group (MICG) to the Emission Measurement Center (EMC). The Emission Measurement Center directed Midwest Research Institute (MRI) to conduct emissions testing at asphalt roofing plants. This report presents results of MRI`s FTIR and Method 25A testing conducted at US Intec in Port Arthur, Texas. The field measurements were performed in September 1997 under several test conditions for both controlled and uncontrolled emissions.

NONE

1999-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Automated titration method for use on blended asphalts  

DOE Patents [OSTI]

A system for determining parameters and compatibility of a substance such as an asphalt or other petroleum substance uses titration to highly accurately determine one or more flocculation occurrences and is especially applicable to the determination or use of Heithaus parameters and optimal mixing of various asphalt stocks. In a preferred embodiment, automated titration in an oxygen gas exclusive system and further using spectrophotometric analysis (2-8) of solution turbidity is presented. A reversible titration technique enabling in-situ titration measurement of various solution concentrations is also presented.

Pauli, Adam T. (Cheyenne, WY); Robertson, Raymond E. (Laramie, WY); Branthaver, Jan F. (Chatham, IL); Schabron, John F. (Laramie, WY)

2012-08-07T23:59:59.000Z

102

A study of the effects of limestone rock asphalt screenings on the structural properties of hot-mix asphaltic concrete made with siliceous materials  

E-Print Network [OSTI]

LiSRagy pptt8pp py IEXAa A STUDY OF THE EFFECTS OF LIMESTONE ROCK ASPHALT SCREENINGS ON THE STRUCTURAL PROPERTIES OF HOT-MIX ASPHALTIC CONCRETE MADE WITH SILICEOUS MATERIALS A Thesis By OSCAR WILLARD. AQBRITTON Submitted to the Graduate... ON THE STRUCTURAL PROPERTIES OF HOT-MIX ASPHALTIC CONCRETE MADE WITH SILICEOUS MATERIALS A Thesis By OSCAR WILLARD ALBRITTON Approved as to Style and Content by: Chairman of Committee ead of Departme t August 1958 ACKNOWLEDGMENTS Acknowledgment is due...

Albritton, Oscar Willard

1958-01-01T23:59:59.000Z

103

Life cycle analysis of lubricants from rape seed oil in comparison to conventional lubricants  

E-Print Network [OSTI]

Introduction and procedure Comparing with biomass-derived lubricants, in many cases conventional lubricants turn out to have disadvantages for their environmental impact, especially where losses occur during regular operation (e.g. in chainsaws) or where a leakage leads to immediate emissions into the environment as for agricultural machinery. Bio lubricants are supposed to be environmentally friendly, among other

G. A. Reinhardt; R. Herbener; S. O. Grtner

104

Lubrication from mixture of boric acid with oils and greases  

DOE Patents [OSTI]

Lubricating compositions are disclosed including crystalline boric acid and a base lubricant selected from oils, greases and the like. The lubricity of conventional oils and greases can also be improved by adding concentrates of boric acid.

Erdemir, A.

1995-07-11T23:59:59.000Z

105

Characteristics and Effects of Lubricant Additive Chemistry...  

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

Characteristics and Effects of Lubricant Additive Chemistry and Exhaust Conditions on Diesel Particulate Filter Service Life and Vehicle Fuel Economy A Consortium to Optimize...

106

Biodiesel Impact on Engine Lubricant Oil Dilution  

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

Efficiency and Renewable Energy operated by the Alliance for Sustainable Energy, LLC Biodiesel Impact on Engine Lubricant Oil Dilution Motivation * Modern diesel engines utilize...

107

Testing and Lubrication for Single Race Bearings  

SciTech Connect (OSTI)

Three ES and H-compatible lubricants (Environment, Safety and Health) for single race bearing applications and one hybrid-material single race bearings were evaluated and compared against single race bearings with trichlorotrifluoroethane (Freon) deposition of low molecular weight polytetrafluoroethylene (PTFE) bearing lubricant extracted from Vydax{trademark}. Vydax is a product manufactured by DuPont consisting of various molecular weights of PTFE suspended in trichlorotrifluoroethane (Freon), which is an ozone-depleting solvent. Vydax has been used as a bearing lubricant in stronglink mechanisms since 1974. Hybrid bearings with silicon nitride balls and molded glass-nylon-Teflon retainers, bearings lubricated with titanium carbide (TiC) on the balls, bearings lubricated with sputtered MoS{sub 2} on races and retainers, and bearings lubricated with electrophoretically deposited MoS{sub 2} were evaluated. The bearings were maintained in a preloaded state in bearing cartridges during cycling and vibration tests. Bearings with electrophoretically deposited MoS{sub 2} performed as well as bearings lubricated with Vydax and were the best performing candidate. All candidates were suitable for low preload applications. Bearings with TiC coated balls and bearings lubricated with sputtered MoS{sub 2} on the races and retainers performed well at high preloads, though not as well as bearings lubricated with electrophoretic deposition of MoS{sub 2}. Bearings with silicon nitride balls were not suitable for high preload applications.

Steinhoff, R.G.

1998-03-04T23:59:59.000Z

108

The Role of Lubricant Additives in Fuel Efficiency and Emission...  

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

Lubricant Additives in Fuel Efficiency and Emission Reductions: Viscosity Effects The Role of Lubricant Additives in Fuel Efficiency and Emission Reductions: Viscosity Effects...

109

Impact of Biodiesel on Ash Emissions and Lubricant Properties...  

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

Biodiesel on Ash Emissions and Lubricant Properties Affecting Fuel Economy and Engine Wear Impact of Biodiesel on Ash Emissions and Lubricant Properties Affecting Fuel Economy and...

110

Friction Modeling for Lubricated Engine and Drivetrain Components...  

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

Modeling for Lubricated Engine and Drivetrain Components Friction Modeling for Lubricated Engine and Drivetrain Components 2010 DOE Vehicle Technologies and Hydrogen Programs...

111

Friction of Steel Sliding Under Boundary Lubrication Regime in...  

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

Friction of Steel Sliding Under Boundary Lubrication Regime in Commercial Gear Oils at Elevated Temperatures Friction of Steel Sliding Under Boundary Lubrication Regime in...

112

Experimental and Theoretical Investigation of Lubricant and Additive...  

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

Theoretical Investigation of Lubricant and Additive Effects on Engine Friction Experimental and Theoretical Investigation of Lubricant and Additive Effects on Engine Friction...

113

Minimizing Lubricant-Ash Requirement and Impact on Emission Aftertreat...  

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

Lubricant-Ash Requirement and Impact on Emission Aftertreatment Systems via an Oil Conditioning Filter Minimizing Lubricant-Ash Requirement and Impact on Emission...

114

Multi-component Nanoparticle Based Lubricant Additive to Improve...  

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

Nanoparticle Based Lubricant Additive to Improve Efficiency and Durability in Engines Multi-component Nanoparticle Based Lubricant Additive to Improve Efficiency and...

115

Effects of Fuel Dilution with Biodiesel on Lubricant Acidity...  

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

Effects of Fuel Dilution with Biodiesel on Lubricant Acidity, Oxidation and Corrosion Effects of Fuel Dilution with Biodiesel on Lubricant Acidity, Oxidation and Corrosion...

116

Wetting and lubricating film instabilities in microchannels  

E-Print Network [OSTI]

, and silicone oils . Dynamic wetting transitions: a pearl flow thick lubricating film , b spider flow thinWetting and lubricating film instabilities in microchannels Thomas Cubaud Department of Mechanical of partially wetting threads in planar microchannels of height h=100 or 250 m fluids: ethanol, mineral oils

Cubaud, Thomas

117

Compressible fluid model for hydrodynamic lubrication cavitation  

E-Print Network [OSTI]

Compressible fluid model for hydrodynamic lubrication cavitation G. Bayada L. Chupin I.C.J. UMR.chupin@math.univ-bpclermont.fr Keywords: cavitation, compressible Reynolds equation Date: april 2013 Summary In this paper, it is shown how vaporous cavitation in lubricant films can be modelled in a physically justified manner through

Sart, Remi

118

Evaluation of western and eastern shale oil residua as asphalt pavement recycling agents  

SciTech Connect (OSTI)

The objective of this investigation was to perform a preliminary evaluation of the utility of residual materials prepared from Green River Formation (western) and New Albany Shale (eastern) shale oils as recycling agents for aged asphalt pavement. Four petroleum asphalts were first aged by a thin-film accelerated-aging test, which simulates long service life of asphalt in pavement. The aged asphalts were mixed (recycled) with Green River Formation shale oil distillation residua to restore the original viscosities. Separately, for comparison, a commercial recycling agent was used to recycle the aged asphalts under the same circumstances. The recycled asphalts were reaged and the properties of both binder and asphalt-aggregate mixtures studied. Originally, the same study was intended for an eastern shale residua. However, the eastern shale oil distillation residua with the required flash point specification also had the properties of a viscosity builder; therefore, it was studied as such with asphalts that do not achieve sufficient viscosity during processing to serve as usable binders. Results show that Green River Formation shale oil residuum can be used to restore the original asphalt properties with favorable rheological properties, the shale oil residuum has a beneficial effect on resistance to moisture damage, the low-temperature properties of the shale oil residuum recycled asphalts are not adversely affected, and the low-temperature properties of the shale oil residuum recycled asphalts are dependent upon the chemistry of the mixture. The eastern shale oil residua was blended with soft petroleum asphalts. Results show the products have higher viscosities than the starting materials, the rheological properties of the soft asphalt-eastern shale oil residue blends are acceptable, and the eastern shale oil residue has dispersant properties despite its high viscosity. 11 refs., 3 figs., 9 tabs.

Harnsberger, P.M.; Robertson, R.E.

1990-03-01T23:59:59.000Z

119

A Methodology of Quantifying Precipitation Exposure for Wet-Weather Collisions and Evaluating Effectiveness of Open-Grade Asphalt Concrete as a Countermeasure  

E-Print Network [OSTI]

Open-graded Asphaltic Concrete Friction Courses in Arizona.for Open-Graded Asphalt Concrete (OGAC) Wearing Courses.of Open-Grade Asphalt Concrete as a Countermeasure Ching-Yao

Chan, Ching-Yao; Jin, Eui-Jae; Oh, Soon Mi; Ragland, David R

2010-01-01T23:59:59.000Z

120

Double angle seal forming lubricant film  

DOE Patents [OSTI]

A lubricated piston rod seal which inhibits gas leaking from a high pressure chamber on one side of the seal to a low pressure chamber on the other side of the seal. A liquid is supplied to the surface of the piston rod on the low pressure side of the seal. This liquid acts as lubricant for the seal and provides cooling for the rod. The seal, which can be a plastic, elastomer or other material with low elastic modulus, is designed to positively pump lubricant through the piston rod/seal interface in both directions when the piston rod is reciprocating. The capacity of the seal to pump lubricant from the low pressure side to the high pressure side is less than its capacity to pump lubricant from the high pressure side to the low pressure side which ensures that there is zero net flow of lubricant to the high pressure side of the seal. The film of lubricant between the seal and the rod minimizes any sliding contact and prevents the leakage of gas. Under static conditions gas leakage is prevented by direct contact between the seal and the rod.

Ernst, William D. (Troy, NY)

1984-01-01T23:59:59.000Z

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


121

Summary of Construction Activities and Results from Six Initial Accelerated Pavement Tests Conducted on Asphalt Concrete Pavement Section for Modified-Binder Overlay  

E-Print Network [OSTI]

Testing on the Asphalt Concrete FWD testing was conducted onin asphalt concrete modulus after HVS testing for Sectionsconcrete pavements under accelerated pavement testing. This

Bejarano, Manuel O.; Morton, Bruce S.; Scheffy, Clark

2005-01-01T23:59:59.000Z

122

An analysis of some properties of paving asphalts in Texas as they relate to pavement performance  

E-Print Network [OSTI]

University Chairman of Adv1sory Committee: Dr. William B. Ledbetter This study exam1nes the possibility of the ex1stence of a better defined relationship between rheological asphalt binder properties and pavement performance of thin asphaltic concrete... pavements 1n Texas. Several descriptive, as well as predicti ve models were formulated. These models show that the relat1onsh1p between asphalt binder prop- erties and pavement performance is significant. Indeed, the relation- ship is far more signif1...

DuBose, Emmett Haygood

1980-01-01T23:59:59.000Z

123

Tertiary nitrogen heterocyclic material to reduce moisture-induced damage in asphalt-aggregate mixtures  

DOE Patents [OSTI]

Asphalt-aggregate roads crack when subjected to freezing and thawing cycles. Herein, the useful life of asphalts are substantially improved by a minor amount of a moisture damage inhibiting agent selected from compounds having a pyridine moiety, including acid salts of such compounds. A shale oil fraction may serve as the source of the improving agent and may simply be blended with conventional petroleum asphalts.

Plancher, Henry (Laramie, WY); Petersen, Joseph C. (Laramie, WY)

1982-01-01T23:59:59.000Z

124

E-Print Network 3.0 - asphalt composition aplicacao Sample Search...  

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

Waste Processing Conference Proceedings ASME 1994 THE NEW HAMPSHIRE BOTTOM Summary: ash utilization in asphalt paving. Over a period of 18 months, hourly and composite bottom...

125

E-Print Network 3.0 - asphaltic sand Sample Search Results  

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

from Concrete and Asphalt Plants... is proposing to operate the sand and gravel mining operation. Mineral ... Source: Netoff, Theoden - Department of Biomedical Engineering,...

126

An investigation of three problems concerning the analysis of airborne asphalt fumes  

E-Print Network [OSTI]

and well documented carcinogens; however, the BaP content of asphalt fumes is only about 0. 03 percent of the BaP content of coal fed coke oven emissions. 4 This strongly illustrates the need to avoid confusion between asphalts and tars or pitches from... in the composition of asphalt and tar or pitch . The principal significant difference lies in the fact that there are much smaller amounts of PNA's in asphalt fumes than are found in tar or pitch fumes. Coke ovens and coal gasification plants also produce a fume...

Laird, Larry Teal

1981-01-01T23:59:59.000Z

127

E-Print Network 3.0 - asphalt paving mixtures Sample Search Results  

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

process. Field aging... of asphalts. One consequence is that these ... Source: Louisiana Forest Products Development Center Collection: Renewable Energy 4 By-Products Utilization...

128

E-Print Network 3.0 - asphalt technology test Sample Search Results  

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

ti R h... change 12;Asphalt Industry Background & Challengesg g Approximately 68% of GDP utilizes our Source: Iowa State University, Office of Biorenewables Programs...

129

E-Print Network 3.0 - asphalt plants truck Sample Search Results  

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

aging of asphalt binder in HMA occurs in ... Source: Southwest Region University Transportation Center Collection: Engineering ; Energy Storage, Conversion and Utilization 12...

130

E-Print Network 3.0 - asphalt construction premature Sample Search...  

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

(HMA), it's just... of asphalt binder during the heating process (called as short-term aging) is controlled considerably. Less... . The construction season expands and the haul...

131

E-Print Network 3.0 - asphalt Sample Search Results  

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

(HMA), it's just... of asphalt binder during the heating process (called as short-term aging) is controlled considerably. Less... -bound water and generates foaming effect to...

132

E-Print Network 3.0 - asphalts Sample Search Results  

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

(HMA), it's just... of asphalt binder during the heating process (called as short-term aging) is controlled considerably. Less... -bound water and generates foaming effect to...

133

E-Print Network 3.0 - anionic emulsified asphalt Sample Search...  

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

and used without thermal pretreatment as an aggregate in the asphalt mix. Land disposal Source: Wisconsin-Milwaukee, University of - Department of Civil Engineering and...

134

E-Print Network 3.0 - asphalt concrete mixtures Sample Search...  

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

Medicine 10 Rheological Investigation of the Influence of Acrylate Polymers on the Modification of Asphalt Summary: - vestigated at 4, 6 and 8% polymer concentrations. Both melt...

135

E-Print Network 3.0 - aged asphalt concrete Sample Search Results  

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

5 Rheological Investigation of the Influence of Acrylate Polymers on the Modification of Asphalt Summary: - vestigated at 4, 6 and 8% polymer concentrations. Both melt...

136

E-Print Network 3.0 - asphalt content Sample Search Results  

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

7 Rheological Investigation of the Influence of Acrylate Polymers on the Modification of Asphalt Summary: on poly- mer content, polymer type, and characteristics of base...

137

E-Print Network 3.0 - asphalt pavements Sample Search Results  

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

-- Deloffre* L. -- Duhamel** D... of asphalt pavement layers. To analyze this effect, a model and a software called ViscoRoute have been... stemming from the specialized...

138

Elastohydrodynamic Lubrication with Polyolester Lubricants and HFC Refrigerants, Final Report, Volume 2  

SciTech Connect (OSTI)

Lubrication properties of refrigeration lubricants were investigated in high pressure nonconforming contacts under different conditions of temperature, rolling speed, and refrigerant concentration. The program was based upon the recognition that the lubrication regime in refrigeration compressors is generally elastohydrodynamic or hydrodynamic, as determined by the operating conditions of the compressor and the properties of the lubricant. Depending on the compressor design, elastohydrodynamic lubrication conditions exist in many rolling and sliding elements of refrigeration compressors such as roller element bearings, gears, and rotors. The formation of an elastohydrodynamic film separating rubbing surfaces is important in preventing the wear and failure of compressor elements. It is, therefore, important to predict the elastohydrodynamic (EHD) performance of lubricants under realistic tribocontact renditions. This is, however, difficult as the lubricant properties that control film formation are critically dependent upon pressure and shear, and cannot be evaluated using conventional laboratory instruments. In this study, the elastohydrodynamic behavior of refrigeration lubricants with and without the presence of refrigerants was investigated using the ultrathin film EHD interferometry technique. This technique enables very thin films, down to less than 5 nm, to be measured accurately within an EHD contact under realistic conditions of temperature, shear, and pressure. The technique was adapted to the study of lubricant refrigerant mixtures. Film thickness measurements were obtained on refrigeration lubricants as a function of speed, temperature, and refrigerant concentration. The effects of lubricant viscosity, temperature, rolling speed, and refrigerant concentration on EHD film formation were investigated. From the film thickness measurements, effective pressure-viscosity coefficients were calculated. The lubricants studied in this project included two naphthenic mineral oils (NMO), four polyolesters (POE), and two polyvinyl ether (PVE) fluids. These fluids represented viscosity grades of ISO 32 and ISO 68 and are shown in a table. Refrigerants studied included R-22, R-134a, and R-410A. Film thickness measurements were conducted at 23 C, 45 C, and 65 C with refrigerant concentrations ranging from zero to 60% by weight.

Gunsel, Selda; Pozebanchuk, Michael

1999-04-01T23:59:59.000Z

139

Synthesis of new high performance lubricants and solid lubricants. Progress report, June 1991--March 1992  

SciTech Connect (OSTI)

We have started to make a number of classes of new perfluoropolyethers both in the solid lubricant area and liquid lubricant area. We have prepared some chlorofluoroethers for testing as additives for normal petroleum and polyalphaolefin lubricants which are so widely used in the United States. Perfluoropolyethers are not soluble in hydrocarbons. On the other hand, these chlorofluoropolyethers are soluble in substantial amounts in simple hydrocarbons. These are uniquely capable of being additives that flow with the motor oil or the polyalphaolefin.

Lagow, R.J.

1992-03-01T23:59:59.000Z

140

Third-Party Evaluation of Petro Tex Hydrocarbons, LLC, ReGen Lubricating Oil Re-refining Process  

SciTech Connect (OSTI)

This report presents an assessment of market, energy impact, and utility of the PetroTex Hydrocarbons, LLC., ReGen process for re-refining used lubricating oil to produce Group I, II, and III base oils, diesel fuel, and asphalt. PetroTex Hydrocarbons, LLC., has performed extensive pilot scale evaluations, computer simulations, and market studies of this process and is presently evaluating construction of a 23 million gallon per year industrial-scale plant. PetroTex has obtained a 30 acre site in the Texas Industries RailPark in Midlothian Texas. The environmental and civil engineering assessments of the site are completed, and the company has been granted a special use permit from the City of Midlothian and air emissions permits for the Texas Commission on Environmental Quality.

Compere, A L [ORNL; Griffith, William {Bill} L [ORNL

2009-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Integrated coke, asphalt and jet fuel production process and apparatus  

DOE Patents [OSTI]

A process and apparatus for the production of coke, asphalt and jet fuel m a feed of fossil fuels containing volatile carbon compounds therein is disclosed. The process includes the steps of pyrolyzing the feed in an entrained bed pyrolyzing means, separating the volatile pyrolysis products from the solid pyrolysis products removing at least one coke from the solid pyrolysis products, fractionating the volatile pyrolysis products to produce an overhead stream and a bottom stream which is useful as asphalt for road pavement, condensing the overhead stream to produce a condensed liquid fraction and a noncondensable, gaseous fraction, and removing water from the condensed liquid fraction to produce a jet fuel-containing product. The disclosed apparatus is useful for practicing the foregoing process. the process provides a useful method of mass producing and jet fuels from materials such as coal, oil shale and tar sands.

Shang, Jer Y. (McLean, VA)

1991-01-01T23:59:59.000Z

142

A novel method of bitumen extraction from asphalt pavement  

SciTech Connect (OSTI)

A new method of extracting bitumen from asphalt pavement mixtures has been developed which does not require chlorinated or aromatic compounds for solvents. The preferred solvent is cyclohexane (although cyclopentane may be used) at high temperatures and pressures. The new method requires equipment that is less costly than the centrifuge method currently used and takes less time than extractions with Bioact but more time than when chlorocompounds are used.

Houser, T.J. (Western Michigan Univ., Kalamazoo (United States))

1990-07-01T23:59:59.000Z

143

Dry lubricant films for aluminum forming.  

SciTech Connect (OSTI)

During metal forming process, lubricants are crucial to prevent direct contact, adhesion, transfer and scuffing of workpiece materials and tools. Boric acid films can be firmly adhered to the clean aluminum surfaces by spraying their methanol solutions and provide extremely low friction coefficient (about 0.04). The cohesion strengths of the bonded films vary with the types of aluminum alloys (6061, 6111 and 5754). The sheet metal forming tests indicate that boric acid films and the combined films of boric acid and mineral oil can create larger strains than the commercial liquid and solid lubricants, showing that they possess excellent lubricities for aluminum forming. SEM analyses indicate that boric acid dry films separate the workpiece and die materials, and prevent their direct contact and preserve their surface qualities. Since boric acid is non-toxic and easily removed by water, it can be expected that boric acid films are environmentally friendly, cost effective and very efficient lubricants for sheet aluminum cold forming.

Wei, J.; Erdemir, A.; Fenske, G. R.

1999-03-30T23:59:59.000Z

144

Microstructural Characterization of the Chemo-mechanical Behavior of Asphalt in Terms of Aging and Fatigue Performance Properties  

E-Print Network [OSTI]

implements the framework of chemo-mechanics by investigating two types of chemical modification processes, natural (oxidative aging) and synthetic (chemical doping) as they relate not only to macro-scale properties of asphalt binder but also to the asphalt...

Allen, Robert Grover

2013-03-27T23:59:59.000Z

145

Advanced lubrication systems and materials. Final report  

SciTech Connect (OSTI)

This report described the work conducted at the National Institute of Standards and Technology under an interagency agreement signed in September 1992 between DOE and NIST for 5 years. The interagency agreement envisions continual funding from DOE to support the development of fuel efficient, low emission engine technologies in terms of lubrication, friction, and wear control encountered in the development of advanced transportation technologies. However, in 1994, the DOE office of transportation technologies was reorganized and the tribology program was dissolved. The work at NIST therefore continued at a low level without further funding from DOE. The work continued to support transportation technologies in the development of fuel efficient, low emission engine development. Under this program, significant progress has been made in advancing the state of the art of lubrication technology for advanced engine research and development. Some of the highlights are: (1) developed an advanced high temperature liquid lubricant capable of sustaining high temperatures in a prototype heat engine; (2) developed a novel liquid lubricant which potentially could lower the emission of heavy duty diesel engines; (3) developed lubricant chemistries for ceramics used in the heat engines; (4) developed application maps for ceramic lubricant chemistry combinations for design purpose; and (5) developed novel test methods to screen lubricant chemistries for automotive air-conditioning compressors lubricated by R-134a (Freon substitute). Most of these findings have been reported to the DOE program office through Argonne National Laboratory who manages the overall program. A list of those reports and a copy of the report submitted to the Argonne National Laboratory is attached in Appendix A. Additional reports have also been submitted separately to DOE program managers. These are attached in Appendix B.

Hsu, S.

1998-05-07T23:59:59.000Z

146

Tribological Characterization of Carbon Based Solid Lubricants  

E-Print Network [OSTI]

TRIBOLOGICAL CHARACTERIZATION OF CARBON BASED SOLID LUBRICANTS A Thesis by CARLOS JOEL SANCHEZ 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 August 2011 Major Subject: Mechanical Engineering TRIBOLOGICAL CHARACTERIZATION OF CARBON BASED SOLID LUBRICANTS A Thesis by CARLOS JOEL SANCHEZ Submitted to the Office of Graduate Studies of Texas...

Sanchez, Carlos Joel

2012-10-19T23:59:59.000Z

147

Studies of cosolvent systems in supercritical ethane using solvated electrons.  

SciTech Connect (OSTI)

In this paper, pulse-radiolytic studies of the methanol-ethane cosolvent system are carried out. Our results show that at temperatures below approximately 110 C, there are high local concentrations of alcohols (clusters) that are capable of solvating an electron, suggesting a size of approximately 4-5 methanol molecules at approximately 0.15 mole fraction alcohol. Reactions have been carried out between these solvated electrons and silver ions that are (presumably) dissolved in other small clusters of alcohols. These results show that the reaction between species in two different clusters is approximately 2 orders of magnitude slower than diffusion-controlled reactions.

Dimitrijevic, N. M.; Bartels, D. M.; Jonah, C. D.; Takahashi, K.

2000-11-14T23:59:59.000Z

148

A unified method for the analysis of nonlinear viscoelasticity and fatigue cracking of asphalt mixtures using the dynamic mechanical analyzer  

E-Print Network [OSTI]

..................................................................................... 69 Energy Method to Characterize Fatigue Damage in Asphalt Pavements .................................................................................... 70 Definition of Dissipated Energy (DE) Components.... Dallas N. Little Fatigue cracking is one of the primary modes of distress in asphalt pavements that has an important economic impact. Fatigue resistance characterization of an asphalt mixture is a complex issue due to: (i) composite nature...

Castelo Branco, Veronica Teixeira Franco

2009-05-15T23:59:59.000Z

149

Compatibility of lubricant additives with HFC refrigerants and synthetic lubricants. Final report, Part 1  

SciTech Connect (OSTI)

Part one of this research provides manufacturers of components of air-conditioning and refrigeration equipment with a useful list of lubricant additives, sources, functional properties and chemical species. The list in part one is comprised of domestic lubricant additive suppliers and the results of a literature search that was specifically targeted for additives reported to be useful in polyolester chemistry.

Cavestri, R.C. [Imagination Resources, Inc., Dublin, OH (United States)

1997-07-01T23:59:59.000Z

150

Novel Pt/Mg(In)(Al)O catalysts for ethane and propane dehydrogenation Pingping Sun a  

E-Print Network [OSTI]

Novel Pt/Mg(In)(Al)O catalysts for ethane and propane dehydrogenation Pingping Sun a , Georges and propane dehydrogenation reactions are strongly dependent on the bulk In/Pt ratio. For both reactants to alkene was nearly 100%. Coke deposition was observed after catalyst use for either ethane or propane

Iglesia, Enrique

151

Molecular Properties of the "Ideal" Inhaled Anesthetic: Studies of Fluorinated Methanes, Ethanes, Propanes,  

E-Print Network [OSTI]

, Propanes, and Butanes E. 1Eger, 11, MD*, J. Liu, MD*, D. D. Koblin, PhD, MDt, M. J. Laster, DVM*, S. Taheri unfluorinated, partially fluorinated, and perfluorinated methanes, ethanes, propanes, and butanes to define fluorinated methanes, ethanes, propanes, and butanes, also obtaining limited data on longer- chained alkanes

Hudlicky, Tomas

152

Remedial investigation/feasibility study analysis asphalt storage area, Elmendorf AFB, Alaska. Master's thesis  

SciTech Connect (OSTI)

This report is focused on an abandoned material storage area located on Elmendorf Air Force Base (EAFB), Alaska. The site is located approximately 2000 feet from the east end of the east/west runway and includes approximately 25 acres. The site was used for asphalt storage and preparation activities during the 1940s and 1950s. Approximately 4,500 drums of asphalt and 29 drums of unknown materials have been abandoned at the site. The drums are located in 32 areas throughout the 25-acre site. Following several decades of exposure to the elements, many of the drums have corroded and leaked to the ground surface. Several acres of soil are inundated with liquid asphalt that has leaked from the drums. Depths of the asphalt range from 6 to 10 inches in areas where surface anomalies have created depressions, and thus a collection point for the asphalt. A 14-x 18-x 4 foot wood frame pit used to support previous asphalt operations is located at the north end of the site. The pit contains approximately 2300 gallons of asphalt. There are also locations where the soil appears to be contaminated by petroleum products other than asphalt.

Miller, N.S.

1993-01-01T23:59:59.000Z

153

Studies of asphalt air blowing and development of a new short-term aging technique  

E-Print Network [OSTI]

In this work asphalt air blowing has been studied from two perspectives. First, the process itself was investigated in terms of the effect of air-blowing conditions on the properties of the asphalt materials obtained. It was found that according...

Vassiliev, Nicolai

2001-01-01T23:59:59.000Z

154

Dynamic Effects on Moisture Transport in Asphalt Concrete M. Emin Kutay1  

E-Print Network [OSTI]

Dynamic Effects on Moisture Transport in Asphalt Concrete M. Emin Kutay1 and Ahmet H. Aydilek2 2007 133:7 406 CE Database subject headings: Moisture; Asphalt concrete; Dynamics; Hydraulic and Magdalena 2002 ; however, limited research has been conducted in modeling dynamic flow in porous geomedia

Aydilek, Ahmet

155

Characterization of asphalt cements modified with crumbed rubber from discarded tires. Final report  

SciTech Connect (OSTI)

The potential legislative requirement for incorporation of scrap rubber into asphalt blends mandated a thorough evaluation of the influence of scrap rubber additives on the physical properties and aging characteristics of rubber/asphalt blends. Blends with up to 20 percent ground vulcanized rubber (both crumb and 200 mesh powder particles) from recycled tires were prepared with asphalt cements of various grades (AC5 - AC30) and evaluated using DMA. Blends produced from powdered rubber particles exhibited Newtonian behavior at high temperatures; similar behavior was not observed with crumb rubber blends. The mechanical properties of asphalt-rubber blends depend upon the concentration of rubber additives, the particle dimensions, and the chemical composition of the asphalt.

Daly, W.H.; Negulescu, I.I.

1994-11-01T23:59:59.000Z

156

J. Am. Chem. SOC.1988, 110, 8305-8319 8305 Hydrogenolysis of Ethane, Propane, n-Butane, and Neopentane  

E-Print Network [OSTI]

J. Am. Chem. SOC.1988, 110, 8305-8319 8305 Hydrogenolysis of Ethane, Propane, n, Pasadena, California 91125. Received February I, 1988 Abstract: The hydrogenolysisof ethane, propane, n for ethane, propane, and neopentane involvesthe cleavage of a single carbon-carbon bond, resulting

Goodman, Wayne

157

Evaluation of an eastern shale oil residue as an asphalt additive  

SciTech Connect (OSTI)

An evaluation of eastern shale oil (ESO) residue as an asphalt additive to reduce oxidative age hardening and moisture susceptibility was conducted by Western Research Institute (WRI). The ESO residue, have a viscosity of 23.9 Pa{lg_bullet}s at 60{degree}C (140{degree}F), was blended with three different petroleum-derived asphalts, ASD-1, AAK-1, and AAM-1, which are known to be very susceptible to oxidative aging. Rheological and infrared analyses of the unaged and aged asphalts and the blends were then conducted to evaluate oxidative age hardening. In addition, the petroleum-derived asphalts and the blends were coated onto three different aggregates, Lithonia granite (RA), a low-absorption limestone (RD), and a siliceous Gulf Coast gravel (RL), and compacted into briquettes. Successive freeze-thaw cycling was then conducted to evaluate the moisture susceptibility of the prepared briquettes. The rheological analyses of the unaged petroleum-derived asphalts and their respective blends indicate that the samples satisfy the rutting requirement. However, the aging indexes for the rolling thin film oven (RTFO)-aged and RTFO/pressure aging vessel (PAV)-aged samples indicate that the blends are stiffer than the petroleum-derived asphalts. This means that when in service the blends will be more prone to pavement embrittlement and fatigue cracking than the petroleum-derived asphalts. Infrared analyses were also conducted on the three petroleum-derived asphalts and the blends before and after RTFO/PAV aging. In general, upon RTFO/PAV aging, the amounts of carbonyls and sulfoxides in the samples increase, indicating that the addition of the ESO residue does not mitigate the chemical aging (oxidation) of the petroleum-derived asphalts. This information correlates with the rheological data and the aging indexes that were calculated for the petroleum-derived asphalts and the blends.

Thomas, K.P.; Harnsberger, P.M.

1995-09-01T23:59:59.000Z

158

ORIGINAL PAPER Effect of Pitch and Roll Static Angle on Lubricant Transfer  

E-Print Network [OSTI]

] showed that the bonding ratio, flying height, lubricant diffusion, the number of end groups, the molecular weight of a lubricant, lubricant bonding ratio, lubricant thickness, and air bearing surface in the lubricant bonding ratio, and (c) a decrease in the lubricant thickness on the disk [2, 3]. Ambekar proposed

Fainman, Yeshaiahu

159

Vehicle Technologies Office: 2013 Fuel and Lubricant Technologies...  

Energy Savers [EERE]

13 Fuel and Lubricant Technologies R&D Annual Progress Report Vehicle Technologies Office: 2013 Fuel and Lubricant Technologies R&D Annual Progress Report This report describes the...

160

High temperature performance of scrap tire rubber modified asphalt concrete  

SciTech Connect (OSTI)

Wheel track rutting tests on mixes modified with 30 mesh, 80 mesh, and very fine colloidal crumb rubber particles show that a very significant improvement in performance occurs with a reduction in the rubber particle size. The SHRP binder test for rutting, which was originally developed for homogeneous systems only, does not predict the performance improvement for smaller rubber particles. If these new scrap rubber binder systems are to be used in pavements then rutting tests on the asphalt-aggregate mixture should be conducted in order to accurately predict high temperature performance.

Coomarasamy, A. [Ministry of Transportation, Downsview, Ontario (Canada); Manolis, S.; Hesp, S. [Queen`s Univ., Kingston, Ontario (Canada)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Multi component Nanoparticle Based Lubricant Additive to Improve...  

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

More Documents & Publications Multi-component Nanoparticle Based Lubricant Additive to Improve Efficiency and Durability in Engines ITP Nanomanufacturing:...

162

Electrophoretically-deposited solid film lubricants  

SciTech Connect (OSTI)

An aqueous-based process that uses electrophoresis to attract powdered lubricant in suspension to a charged target was developed. The deposition process yields coatings with low friction, complies with environmental safety regulations, requires minimal equipment, and has several advantages over processes involving organic binders or vacuum techniques. This work focuses on development of the deposition process, includes an analysis of the friction coefficient of the material in sliding contact with stainless steel under a range of conditions, and a functional evaluation of coating performance in a precision mechanical device application. Results show that solid lubricant films with friction coefficients as low as 0.03 can be produced. A 0.03 friction coefficient is superior to solid lubricants with binder systems and is comparable to friction coefficients generated with more costly vacuum techniques.

Dugger, M.T.; Panitz, J.K.J.; Vanecek, C.W.

1995-04-01T23:59:59.000Z

163

Guidelines for maintaining steam turbine lubrication systems. Final report  

SciTech Connect (OSTI)

Failures of steam turbine bearings and rotors cost the utility industry an estimated $150 million a year. A third of these failures involve contaminated lubricants or malfunctioning lubricant supply system components. This report, outlining a comprehensive surveillance program, presents guidelines for maintaining major elements in the turbine lubrication system.

Lamping, G.A.; Cuellar, J.P. Jr.; Silvus, H.S.; Barsun, H.F.

1986-07-01T23:59:59.000Z

164

Lubricating Oil Dominates Primary Organic Aerosol Emissions from Motor Vehicles  

E-Print Network [OSTI]

Lubricating Oil Dominates Primary Organic Aerosol Emissions from Motor Vehicles David R. Worton to "fresh" lubricating oil. The gas chromatography retention time data indicates that the cycloalkane ring with lubricating oil being the dominant source from both gasoline and diesel-powered vehicles, with an additional

Cohen, Ronald C.

165

Tribological behavior of some candidate advanced space lubricants  

SciTech Connect (OSTI)

Performance of a variety of space lubricants was compared under boundary and elastohydrodynamic lubrication (EHL). The types of fluids studied were naphthenic mineral oil, paraffinic mineral oil, polyalphaolefin, and silahydrocarbon. The silahydrocarbon and the polyalphaolefin lubricants exhibited lower traction under similar conditions. A specific additive package increased the traction of the polyalphaolefin. Volatility characteristics of some of these fluids were also studied. 10 refs.

Sharma, S.K.; Snyder, C.E. Jr.; Gschwender, L.J. (USAF, Wright Lab., Wright-Patterson AFB, OH (United States))

1993-04-01T23:59:59.000Z

166

New thermodynamic diagrams developed for methane and ethane  

SciTech Connect (OSTI)

Thermodynamic diagrams have been developed for methane and ethane. The diagrams determine volume and enthalpy as a function of pressure and temperature. The diagrams cover a wide range of conditions and are designed for ease of use. The enthalpy diagrams also contain constant-entropy lines, which allow engineers to solve second-law problems such as adiabatic expansion and fluid compression. Each diagram includes: a two-phase region for saturated liquid and vapor; a superheated gas region for gases at temperatures above the saturation temperature; a subcooled liquid region for liquids at temperatures below the saturation temperature; and a supercritical region for temperatures and pressures above the critical point. Representative engineering uses are illustrated in three examples.

Yaws, C.L.; Sheth, S.D.; Han, M. [Lamar Univ., Beaumont, TX (United States)

1995-12-04T23:59:59.000Z

167

Lubricants or lubricant additives composed of ionic liquids containing ammonium cations  

DOE Patents [OSTI]

A lubricant or lubricant additive is an ionic liquid alkylammonium salt. The alkylammonium salt has the structure R.sub.xNH.sub.(4-x).sup.+,[F.sub.3C(CF.sub.2).sub.yS(O).sub.2].sub.2N.sup- .- where x is 1 to 3, R is independently C.sub.1 to C.sub.12 straight chain alkyl, branched chain alkyl, cycloalkyl, alkyl substituted cycloalkyl, cycloalkyl substituted alkyl, or, optionally, when x is greater than 1, two R groups comprise a cyclic structure including the nitrogen atom and 4 to 12 carbon atoms, and y is independently 0 to 11. The lubricant is effective for the lubrication of many surfaces including aluminum and ceramics surfaces.

Qu, Jun (Knoxville, TN) [Knoxville, TN; Truhan, Jr.,; John J. (Cookeville, TN) [Cookeville, TN; Dai, Sheng (Knoxville, TN) [Knoxville, TN; Luo, Huimin (Knoxville, TN) [Knoxville, TN; Blau, Peter J. (Knoxville, TN) [Knoxville, TN

2010-07-13T23:59:59.000Z

168

Elastohydrodynamic Lubrication with Polyolester Lubricants and HFC Refrigerants, Final Report, Volume 1  

SciTech Connect (OSTI)

The objective of this study was to investigate the film formation properties of refrigeration lubricants using the ultrathin film elastohydrodynamic (EHD) interferometry technique and to study the effects of refrigerants on film formation. Film thickness measurements were conducted as a function of lubricant viscosity, speed, temperature, and refrigerant concentration. Based on the EHD film thickness data, effective pressure-viscosity coefficients were calculated for the test fluids at different temperatures and the effects of refrigerants on pressure-viscosity properties were investigated.

Gunsel, Selda; Pozebanchuk, Michael

1999-04-01T23:59:59.000Z

169

SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive  

E-Print Network [OSTI]

1 SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive Greenville, MI 48838 MATERIAL SAFETY DATA SHEET irritating and potentially toxic fumes containing oxides of nitrogen if exposed to extreme heat in air: (Conditions to Avoid) Stable under normal use conditions and in final use concentration. Incompatibility

Rollins, Andrew M.

170

SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive  

E-Print Network [OSTI]

1 SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive Greenville, MI 48838 MATERIAL SAFETY DATA SHEET. It will produce irritating and potentially toxic fumes containing oxides of nitrogen if exposed to extreme heat: (Conditions to Avoid) Stable under normal use conditions and in final use concentration. Incompatibility

Rollins, Andrew M.

171

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

172

Dead poets' society New England, the 1950s. Todd Anderson (Ethan Hawke), a lonely and painfully  

E-Print Network [OSTI]

Dead poets' society New England, the 1950s. Todd Anderson (Ethan Hawke), a lonely and painfully shy in it. After seeing that Mr. Keating listed "Dead Poets Society" as one of his activities at the school

Schenato, Luca

173

Evaluation of ethane as a power conversion system working fluid for fast reactors  

E-Print Network [OSTI]

A supercritical ethane working fluid Brayton power conversion system is evaluated as an alternative to carbon dioxide. The HSC chemical kinetics code was used to study thermal dissociation and chemical interactions for ...

Perez, Jeffrey A

2008-01-01T23:59:59.000Z

174

Study of permanent deformation mechanism in asphalt mixes in relation to microcrack growth  

E-Print Network [OSTI]

Recent developments by Lytton et al. (1998) indicate phics. that the growth of micrographs in asphalt layers under repeated loading is also a cause for the accumulation of permanent deformation or rutting in pavements besides the plastic strain...

Bhairampally, Rajesh Kumar

1998-01-01T23:59:59.000Z

175

E-Print Network 3.0 - asphalt roofing shingles Sample Search...  

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

E. Clark, Ph.D., P.E., D. WRE, Brett V. Long, Christina Y.S. Siu, Julia Spicher, Kelly A. Summary: woods, cedar shakes, asphalt shingles, galvanized (uncoated) metal, and an...

176

A program to design asphalt concrete overlays to mitigate reflection cracking  

E-Print Network [OSTI]

of the research are to understand the occurrence and behavior of reflection cracking and for devising ways of mitigating them and to put together an effective and complete package of computer programs to design asphalt concrete overlays. Another primary objective...

Satyanarayana Rao, Sindhu

2002-01-01T23:59:59.000Z

177

E-Print Network 3.0 - asphalt mixtures Sample Search Results  

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

pitch-matrix composites Summary: evaluation of modified asphalt paving mixtures. Canadian J Civil Eng 1994; 21(6):954-65. 9 Lesueur D... online 19 June 2004 Abstract The...

178

E-Print Network 3.0 - asphalt overlay design Sample Search Results  

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

the porous overlay must be designed... safety under wet conditions. The overlay allows rainwater to drain down through the pores in the asphalt... . Part of the test section was...

179

Characterization of aggregate resistance to degradation in stone matrix asphalt mixtures  

E-Print Network [OSTI]

Stone matrix asphalt (SMA) mixtures rely on stone-on-stone contacts among particles to resist applied forces and permanent deformation. Aggregates in SMA should resist degradation (fracture and abrasion) under high stresses at the contact points...

Gatchalian, Dennis

2006-04-12T23:59:59.000Z

180

A Continuum Coupled Moisture-mechanical Constitutive Model for Asphalt Concrete  

E-Print Network [OSTI]

constitutive relationships are implemented in the Pavement Analysis using Nonlinear Damage Approach (PANDA) finite element (FE) package to model the moisture damage effect on the complex environmental-mechanical response of asphalt concrete. The developed...

Shakiba, Maryam

2013-12-09T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Development of a Prediction Model for Skid Resistance of Asphalt Pavements  

E-Print Network [OSTI]

The skid resistance of asphalt pavement is a major characteristic that determines the driving safety on a road, especially under wet surface conditions. Skid resistance is primarily a function of the microtexture and macrotexture of a pavement...

Rezaei, Arash

2012-02-14T23:59:59.000Z

182

Chip Seals for Asphalt Concrete Pavements: A Proposed Emulsion Residue Specification and Existing Pavement Texture Evaluation  

E-Print Network [OSTI]

Chip seals are a pavement surface treatment used for maintaining asphalt concrete pavements. National Cooperative Highway Research Program (NCHRP) Project 14-17 was performed to produce a national Chip Seal Manual which would consolidate the best...

Hoyt, Denise

2012-07-16T23:59:59.000Z

183

Development of a long-term durability specification for polymer modified asphalt  

E-Print Network [OSTI]

In recent years an increased use of polymers has occurred to modify asphalt binders, mainly to decrease pavement rutting but also to improve binder failure strain in direct tension. Whereas all of these effects positively impact the durability...

Woo, Won Jun

2009-06-02T23:59:59.000Z

184

E-Print Network 3.0 - asphalt combustion process Sample Search...  

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

67 LA-UR-03-3983 July 2003 Approved for public release; Summary: are modeled in this analysis. Asphalt plants generate criteria pollutants from the combustion in the gas... of any...

185

E-Print Network 3.0 - asphalt pavement cracking Sample Search...  

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

southbound on US-169 are coming from the gravel pits, concrete plants, and waste disposal facilities just north Summary: of the same UTW design on hot-mix asphalt (HMA)...

186

E-Print Network 3.0 - asphalt concrete performance Sample Search...  

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

O R E G O N S T A T E U N I V E R S I T Y Summary: , "Relationship Between Laboratory Aging Tests and Field Performance of Asphalt Concrete Mixtures," Proceedings... Tests and...

187

E-Print Network 3.0 - asphalt hardening Sample Search Results  

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

materials used in roads and predicting road lives Source: Collection: Engineering 22 Bi Oil i A h ltBio-Oil in Asphalt ApplicationsApplications Summary: Bi Oil i A h ltBio-Oil in...

188

A study to improve the engineering properties of limestone rock asphalt paving mixtures  

E-Print Network [OSTI]

asphalt is a naturally occuring calcareous material with its interstices filled with natural bitumen. Deposits of this material exist in various locations throughout the United States. The 1 imestone rock asphalt materials used for thi s study... streets, parking lots, etc . Since the aggregate contains natural bitumen, the amount of additional asp baltic binder required to produce a quality paving mixture is reduced. Consequently, the cost of building a road with this material is reduced...

Goodwin, Philip Wayne

1978-01-01T23:59:59.000Z

189

The morphology of polymer modified asphalt and its relationship to rheology and durability  

E-Print Network [OSTI]

Kraus, B.S., Georgia Institute of Technology Chair of Advisory Committee: Dr. Charles J. Glover Polymers are added to asphalt binders primarily to stiffen the binder at higher temperatures and thus to protect the pavement against rutting... at summertime temperatures early in the pavements life. Also, it has been noted that polymers typically increase the ductility of a binder and that some polymer-asphalt combinations are especially effective. Furthermore, it is hypothesized that enhancing a...

Kraus, Zachary Rothman

2008-10-10T23:59:59.000Z

190

Oxidative reactions and their impact on the properties of asphalt as a pavement binder  

E-Print Network [OSTI]

OXIDATIVE REACTIONS AND THEIR IMPACT ON THE PROPERTIES OF ASPHALT AS A PAVE~ BINDER A Thesis by CHEE KEUNG LAU 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 1991 Major Subject: Chemical Engineering OXIDATIVE REACTIONS AND THEIR IMPACT ON THE PROPERTIES OF ASPHALT AS A PAVEMENT BINDER A Thesis by CHEE KEUNG LAU Approved as to style and content by: Charles J. over (Chair...

Lau, Chee Keung

1991-01-01T23:59:59.000Z

191

The development of a computerized analysis for asphaltic-concrete-mechanical-characterization data  

E-Print Network [OSTI]

THE DEVELOPMENT OF A COMPUTERIZED ANALYSIS FOR ASPHALTIC- CONCRETE-MECHANICAL-CHARACTERIZATION DATA A Thesis by HARVEY OSCAR FLEISHER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1972 Major Subject: Industrial Engineering THE DEVELOPMENT OF A COMPUTERIZED ANALYSIS FOR ASPHALTIC- CONCRETE-MECHANICAL-CHARACTERIZATION DATA A Thesis by HARVEY OSCAR FLEISHER Approved as to style and content...

Fleisher, Harvey Oscar

1972-01-01T23:59:59.000Z

192

Evaluation of oil shale bitumen as a pavement asphalt additive to reduce moisture damage susceptibility  

SciTech Connect (OSTI)

An unrefined shale bitumen was evaluated as an agent to reduce moisture damage susceptibility of asphalt aggregate mixtures. Some activity was observed but less than might have been expected based on the molecular weight and nitrogen content of the bitumen. The counter effects of free carboxylic acids, which are known to be variable in asphalt and which are also present in the unrefined bitumen, appear to diminish the activity of the bitumen to inhibit moisture damage. 5 refs., 1 tab.

Robertson, R.E.; Harnsberger, P.M.; Wolf, J.M.

1991-01-01T23:59:59.000Z

193

Laboratory Evaluation of Hot-Mix Asphalt Concrete Fatigue Cracking Resistance  

E-Print Network [OSTI]

LABORATORY EVALUATION OF HOT-MIX ASPHALT CONCRETE FATIGUE CRACKING RESISTANCE A Thesis by BRANDON PARKER JAMISON 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 2010 Major Subject: Civil Engineering LABORATORY EVALUATION OF HOT-MIX ASPHALT CONCRETE FATIGUE CRACKING RESISTANCE A Thesis by BRANDON PARKER JAMISON Submitted to the Office of Graduate...

Jamison, Brandon Parker

2012-02-14T23:59:59.000Z

194

Full Life Wind Turbine Gearbox Lubricating Fluids  

SciTech Connect (OSTI)

Industrial gear box lubricants typically are hydrocarbon based mineral oils with considerable amounts of additives to overcome the lack of base fluid properties like wear protection, oxidation stability, load carrying capacity, low temperature solidification and drop of viscosity at higher temperatures. For today's wind turbine gearboxes, the requirements are more severe and synthetic hydrocarbon oils are used to improve on this, but all such hydrocarbon based lubricants require significant amounts of Extreme Pressure (EP) additives to meet performance requirements. Perfluoropolyether (PFPE) fluids provide load carrying capacity as an inherent property. During the course of the project with the main tasks of 'Establish a Benchmark', 'Lubricant Evaluation', 'Full Scale Gearbox Trial' and 'Economic Evaluation', the PAO Reference oil exhibited significant changes after laboratory gear testing, in service operation in the field and full scale gearbox trial. Four hydrocarbon base oils were selected for comparison in the benchmarking exercise and showed variation with respect to meeting the requirements for the laboratory micro-pitting tests, while the PFPE fluid exceeded the requirements even with the material taken after the full scale gear box trial. This is remarkable for a lubricant without EP additives. Laboratory bearing tests performed on the PFPE fluids before and after the full scale gear box trial showed the results met requirements for the industry standard. The PFPE fluid successfully completed the full scale gear box test program which included baseline and progressive staged load testing. The evaluation of gears showed no micro-pitting or objectionable wear. By the final stage, lubricant film thickness had been reduced to just 21% of its original value, this was by design and resulted in a lambda ratio of well below 1. This test design scenario of a low lambda ratio is a very undesirable lubrication condition for real world but creates the ability to test the lubricating fluids performance under the most extreme conditions. The PAO Reference oil also passed its testing without any noticeable deterioration of the gear surface. However the PAO Reference oil was replaced midway through the progressive loading, as the lubricant was burned in an attempt to raise the sump temperature to the same levels as for the PFPE. Both materials experienced a decrease of viscosity during their respective run times. The viscosity index decreased for the PAO there while there was a slight increase for the PFPE. FZG laboratory gear tests and measurements of the drive motor's current during the full scale gear box trial were made to characterize the relative efficiency between the PFPE fluid and the PAO Reference oil. In the FZG laboratory efficiency test, the PFPE fluids show much higher churning losses due to their higher viscosity and density. The analysis seems to show that the efficiency correlates better to dynamic viscosity than any other of the measured metrics such as film thickness. In load stages where the load, speed and temperature are similar, the PFPE fluid has a greater film thickness and theoretical gear protection, but requires a larger current for the drive motor than the PAO. However in load stages where the film thickness is the same, the PFPE fluid's reduced dynamic viscosity gives it a slight efficiency advantage relative to the PAO reference oil. Ultimately, many factors such as temperature, rotational speed, and fluid viscosity combine in a complex fashion to influence the results. However, the PFPE's much lower change of viscosity with respect to temperature, allows variations in designing an optimum viscosity to balance efficiency versus gear protection. Economic analysis was done using Cost of Energy calculations. The results vary from 5.3% for a 'Likely Case' to 16.8% for a 'Best Case' scenario as potential cost improvement by using PFPE as the gearbox lubricating fluid. It is important to note the largest portion of savings comes in Levelized Replacement Cost, which is dictated by the assumption on gearb

Lutz, Glenn A.; Jungk, Manfred; Bryant, Jonathan J.; Lauer, Rebecca S.; Chobot, Anthony; Mayer, Tyler; Palmer, Shane; Kauffman, Robert E.

2012-02-28T23:59:59.000Z

195

Evaluation of the effects of crumb rubber and SBR on rutting resistance of asphalt concrete  

SciTech Connect (OSTI)

This paper presents the results of a study to evaluate the effects of addition of crumb rubber (CR) and styrene-butadiene rubber (SBR) on the rutting resistance of asphalt concrete. These two additives were blended with an AC-20 and an AC-30 grade asphalt cements at different levels of concentrations. These modified and unmodified asphalt blends were tested at intermediate and high temperatures to evaluate their rutting resistance characteristics. They were also used to make Florida type S-I structural surface mixtures. These mixtures were made into Marshall-size specimens by using Gyratory Testing Machine (GTM) equipped with air-roller to compact and density to three compaction levels which simulate three different conditions in the pavement. The FDOT`s (Florida Department of Transportation) Loaded Wheel Tester was also used to evaluate the rutting resistance of these asphalt mixtures. The test results indicate that the modified asphalt mixtures show relatively better rutting resistance and shear resistance as compared with the unmodified asphalt mixtures.

Shih, Chuang-Tsair; Tia, Mang; Ruth, B.E. [Univ. of Florida, Gainesville, FL (United States)

1996-12-31T23:59:59.000Z

196

Lubrication for high load duplex bearings  

SciTech Connect (OSTI)

Three ES and H-compatible lubricants (Environment, Safety and Health) for high load duplex bearing applications were evaluated and compared against trichlorotrifluoroethane (Freon) deposition of low molecular weight polytetrafluoroethylene (PTFE) bearing lubricant extracted from Vydax{trademark}. Vydax is a product manufactured by DuPont consisting of various molecular weights of PTFE suspended in trichlorotrifluoroethane (Freon) which is an ozone-depleting solvent. Bearings with Supercritical CO{sub 2} deposition of PTFE extracted from Vydax AR/IPA, bearings with titanium carbide coated balls, and bearings with diamond-like carbon races and retainers were evaluated. Bearings with Supercritical CO{sub 2} deposition of PTFE from Vydax AR/IPA performed as well as bearings with Freon deposition of PTFE from Freon-based Vydax.

Steinhoff, R.G.

1997-08-01T23:59:59.000Z

197

Rubber friction on (apparently) smooth lubricated surfaces  

E-Print Network [OSTI]

We study rubber sliding friction on hard lubricated surfaces. We show that even if the hard surface appears smooth to the naked eye, it may exhibit short wavelength roughness, which may give the dominant contribution to rubber friction. That is, the observed sliding friction is mainly due to the viscoelastic deformations of the rubber by the substrate surface asperities. The presented results are of great importance for rubber sealing and other rubber applications involving (apparently) smooth surfaces.

M. Mofidi; B. Prakash; B. N. J. Persson; O. Albohl

2007-10-18T23:59:59.000Z

198

Scaling theory for hydrodynamic lubrication, with application to non-Newtonian lubricants  

E-Print Network [OSTI]

Scaling arguments are developed for the load balance in hydrodynamic lubrication, and applied to non-Newtonian lubricants with a shear-thinning rheology typical of a structured liquid. It is argued that the shear thinning regime may be mechanically unstable in lubrication flow, and consequently the Stribeck (friction) curve should be discontinuous, with possible hysteresis. Further analysis suggests that normal stress and flow transience (stress overshoot) do not destroy this basic picture, although they may provide stabilising mechanisms at higher shear rates. Extensional viscosity is also expected to be insignificant unless the Trouton ratio is large. A possible application to recent theories of shear thickening in non-Brownian particulate suspensions is indicated.

Patrick B. Warren

2015-02-04T23:59:59.000Z

199

Tests show benefits of new polished rod lubricator  

SciTech Connect (OSTI)

Tests with beam-pumped oil wells, completed over 7-months at the Rocky Mountain Oilfield Testing Center (Rmotc), indicated that a new lubricator supplying supplementary grease to polished rods lowered operating costs by reducing maintenance, material costs, and electrical requirements. It also minimized polished rod corrosion and enhanced pollution control. The lubricator worked with extremely hot fluids and in adverse weather conditions. The paper describes Rmotc, the new lubrication, the test wells, and cost reduction.

Tyler, M.R.; Khatib, A. [Rocky Mountain Oilfield Testing Center, Casper, WY (United States)

1995-04-10T23:59:59.000Z

200

Development of statistical wet weather model to evaluate frictional properties at the pavement-tire interface on hot mix asphalt concrete  

E-Print Network [OSTI]

Skid resistance on wet pavements is influenced by friction at the tire-pavement interface as well as overall hot mix asphalt (HMA) performance. It is important to control aggregate, asphalt, and mix properties to achieve desirable frictional...

Bedi, Harpreet

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Reducing Lubricant Ash Impact on Exhaust Aftertreatment with...  

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

Filter Effects of Fuel Dilution with Biodiesel on Lubricant Acidity, Oxidation and Corrosion Future Engine Fluids Technologies: Durable, Fuel-Efficient, and Emissions-Friendly...

202

Collaborative Lubricating Oil Study on Emissions (CLOSE) Project...  

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

CLOSE) Project Collaborative Lubricating Oil Study on Emissions (CLOSE) Project Extensive chemical and physical characterization performed on emissions from normal and high...

203

Lubricants - Pathway to Improving Fuel Efficiency of Legacy Fleet...  

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

Vehicles Reviews recent studies on potential for low-viscosity lubricants and low-friction surfaces and additives to reduce fuel consumption, and impact of such approaches on...

204

Characteristics and Effects of Lubricant Additive Chemistry and...  

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

Characteristics and Effects of Lubricant Additive Chemistry and Exhaust Conditions on Diesel Particulate Filter Service Life and Vehicle Fuel Economy Characteristics and Effects of...

205

Polyol esters as HFC-134a compressor lubricants  

SciTech Connect (OSTI)

A polyol ester-based lubricant has been applied to HFC-134a household refrigerator compressors, because of its good miscibility with HFC-134a refrigerant, and there is a possibility that it will be applied to automobile air conditions. For better performance, further improvements are needed regarding miscibility, lubricity and chemical stability of the lubricant, because such systems are often used under extreme conditions. This report discusses the required properties and ways to improve performance of polyol esters as HFC-134a compressor lubricants. 7 refs., 14 figs., 4 tabs.

Komatsuzaki, S.; Homma, Y.; Itoh, Y. [Hitachi Ltd. (Japan)] [and others

1994-10-01T23:59:59.000Z

206

E-Print Network 3.0 - actively lubricated journal Sample Search...  

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

-align and mount to the hydrophilic trench binding sites with electric connections by heat curable lubricant oil... ) lubricant oil covers only hydrophilic nickel surface of PZT...

207

Effects of carboxylic acids on the rheological properties of crumb rubber modified asphalt  

SciTech Connect (OSTI)

The Federal mandate of 1991-1995 on the use of scrap tires in Federal roadway construction sparked a major interest in gaining a fundamental understanding of the behavior of rubber in asphalt. This study is a systematic elucidation of what chemistry controls the final crumb rubber modified asphalt (CRMA) product quality. We discovered that the type and total acid content in the asphalt are the most influential chemical factors that determine the changes in the important roadway properties of shear modulus (G*) and loss angle ({delta}) of CRMA. Low acid (<0.005 m/L) asphalts were modified with three types of carboxylic acid and each made into CRMA using typical field mixing conditions of 1 hour at 175{degrees}C. Rheological measurements were then made at various storage times up to 192 hours following storage at both 156 and 200{degrees}C. We found the changes in CRMA theological properties correspond to the acid type spiked into the asphalt.

Tauer, J.E.; Robertson, R.E. [Western Research Institute, Laramie, WY (United States)

1996-12-31T23:59:59.000Z

208

Evaluation of an eastern shale oil residue as an asphalt additive  

SciTech Connect (OSTI)

An evaluation of eastern shale oil (ESO) residue as an asphalt additive to reduce oxidative age-hardening and moisture susceptibility was conducted. The ESO residue, having a viscosity of 23.9 Pa{sm_bullet}s at 60{degrees}C (140{degrees}F), was blended with three different petroleum-derived asphalts, AAD-1, AAK-1, and AAM-1, that are known to be very susceptible to oxidative aging. Rheological and infrared analyses of the unaged and aged asphalts and the blends were then conducted to evaluate oxidative age-hardening. In addition, the petroleum-derived asphalts and the blends were coated onto three different aggregates, Lithonia granite (RA), a low-absorption limestone (RD), and a silicious Gulf Coast gravel (RL), and compacted into briquets. Successive freeze-thaw cycling was then conducted to evaluate the moisture susceptibility of the prepared briquets. The abbreviations used above for the asphalts and the aggregates are part of the Strategic Highway Research Program nomenclature.

Thomas, K.P.; Harnsberger, P.M.

1995-12-19T23:59:59.000Z

209

A study of sand-asphalt mixtures: a constitutive model based on a thermomechanical framework and experimental corroboration  

E-Print Network [OSTI]

and modeling of asphalt from ancient to modern times. An account of the history of roads can be found in [2],[3]. From tool making to mummification to storing nuclear waste, asphalt hasserved asa versatile engineering material. The Shell bitumen handbooklists...

Ravindran, Parag

2009-06-02T23:59:59.000Z

210

Microfriction studies of model self-lubricating surfaces  

SciTech Connect (OSTI)

Self-lubricating composites consist of at least one structural (matrix) phase and at least one phase to provide lubrication. Modeling the behavior of such composites involves ascertaining the frictional contributions of each constituent phase under varying conditions of lubricating films coverage. The ORNL friction microprobe (FMP), a specialized microcontact tribometer, was used to investigate the frictional behavior of both matrix and lubricant phases to support the development of self-lubricating, surfaces. Polished CVD-silicon carbide deposits and silicon wafers were used as substrates. The wafers were intended to simulate the thin silica films present on SiC surfaces at elevated temperature. Molybdenum disulfide, in both sputtered and burnished forms, was used as the model lubricant. The effects of CVD-SiC substrate surface roughness and method of lubricant film deposition on the substrate were studied for single passes of a spherical silicon nitride slider (NBD 200 material). In contrast to the smooth sliding exhibit by burnished, films, sputtered MoS{sub 2} surfaces exhibited marked stick-slip behavior, indicating that the frictional behavior of solid lubricating coatings can be quite erratic on a microscale, especially when asperity contacts are elastically compliant.

Blau, P.J.; Yust, C.S. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.

1993-05-06T23:59:59.000Z

211

Fuel and Lubricant Effects | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional ElectricalEnergyQuality Challenges An OEMLife10and Lubricant

212

Asphalt emulsion radon barrier systems for uranium mill tailings: an overview of the technology  

SciTech Connect (OSTI)

Pacific Northwest Laboratory (PNL), under contract to the US Department of Energy (DOE) Uranium Mill Tailings Remedial Action Project (UMTRAP) office, has developed an asphalt emulsion cover system to reduce the release of radon from uranium mill tailings. The system has been field tested at Grand Junction, Colorado. Results from laboratory and field tests indicate that this system is effective in reducing radon release to near-background levels (<2.5 pCi m/sup -2/s/sup -1/) and has the properties required for long-term effectiveness and stability. Engineering specifications have been developed, and analysis indicates that asphalt emulsion covers are cost-competitive with other cover systems. This report summarizes the technology for asphalt emulsion radon barrier systems. 59 references, 45 figures, 36 tables.

Baker, E.G.; Hartley, J.N.; Freeman, H.D.; Gates, T.E.; Nelson, D.A.; Dunning, R.L.

1984-03-01T23:59:59.000Z

213

Application of pyrolized carbon black from scrap tires in asphalt pavement design and construction  

SciTech Connect (OSTI)

According to EPA reports (1991) of the over 242 million waste generated each year in the United State, 5% are exported, 6% recycled, 11% incinerated, and 78% are landfilled, stockpiled, or illegally dumped. A variety of uses for these tires are being studied. Among these is pyrolysis which produces 5 5% of oil, 25% of carbon black, 9% of steel, 5% of fiber and 6% of gas. Pyrolized carbon black contains 9 % of ash, 4% of sulfur, 12% of butadine copolymer and 75% of carbon black. The objective of this research is to investigate the viability of using PCB as an additive in hot mix asphalt. The use of PCB in asphalt pavement is expected not only to improve the performance of conventional asphalt, but also to provide a means for the mass disposal of waste fires.

Park, T.; Coree, B.J. [Indiana Department of Transportation, West Lafayette, IN (United States). Division of Research; Lovell, C.W. [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering

1995-12-31T23:59:59.000Z

214

An experimental investigation into the dimension-sensitive viscosity of polymer containing lubricant oils in microchannels  

E-Print Network [OSTI]

lubricant oils in microchannels David Erickson a , Fuzhi Lu a , Dongqing Li a,*, Tony White b , Jason Gao b lubrication processes, lubricating oils containing polymer additives are subject to high shear rate through of channel height on the effective viscosity of oil lubricants with two different polymer additives (a radial

Erickson, David

215

METHANE AND ETHANE ON THE BRIGHT KUIPER BELT OBJECT 2005 FY9 M. E. Brown,1  

E-Print Network [OSTI]

METHANE AND ETHANE ON THE BRIGHT KUIPER BELT OBJECT 2005 FY9 M. E. Brown,1 K. M. Barkume,1 G. A regime and by absorption due to methane in the near-infrared. The solid methane absorption lines through the methane. These long path lengths can be parameterized as a methane grain size of approximately

Brown, Michael E.

216

Soliton dynamics in a solid lubricant during sliding friction  

E-Print Network [OSTI]

Recent highly idealized model studies of lubricated nanofriction for two crystalline sliding surfaces with an interposed thin solid crystalline lubricant layer showed that the overall relative velocity of the lubricant $v_{\\rm lub} / v_{\\rm slider}$ depends only on the ratio of the lattice spacings, and retains a strictly constant value even when system parameters are varied within a wide range. This peculiar "quantized" dynamical locking was understood as due to the sliding-induced motion of misfit dislocations, or soliton structures. So far, the practical relevance of this concept to realistic sliding three dimensional crystals has not been demonstrated. In this work, by means of classical molecular dynamics simulations and theoretical considerations, we realize a realistic three-dimensional crystal-lubricant-crystal geometry. Results show that the flux of lubricant particles associated to the advancing soliton lines gives rise here too to a quantized velocity ratio. Moreover, depending on the interface lattice spacing mismatch, both forward and backward quantized motion of the lubricant is predicted. The persistence under realistic conditions of the dynamically pinned state and quantized sliding is further investigated by varying sliding speed, temperature, load, and lubricant film thickness. The possibilities of experimental observation of quantized sliding are also discussed.

A. Vigentini; B. Van Hattem; E. Diato; P. Ponzellini; T. Meledina; A. Vanossi; G. Santoro; E. Tosatti; N. Manini

2014-02-27T23:59:59.000Z

217

Novel Pt/Mg(In)(Al)O catalysts for ethane and propane dehydrogenation  

SciTech Connect (OSTI)

Catalysts for the dehydrogenation of light alkanes were prepared by dispersing Pt on the surface of a calcined hydrotalcite-like support containing indium, Mg(In)(Al)O. Upon reduction in H{sub 2} at temperatures above 673 K, bimetallic particles of PtIn are observed by TEM, which have an average diameter of 1 nm. Analysis of Pt LIII-edge extended X-ray absorption fine structure (EXAFS) data shows that the In content of the bimetallic particles increases with increasing bulk In/Pt ratio and reduction temperature. Pt LIII-edge X-ray absorption near edge structure (XANES) indicates that an increasing donation of electronic charge from In to Pt occurs with increasing In content in the PtIn particles. The activity and selectivity of the Pt/Mg(In)(Al)O catalysts for ethane and propane dehydrogenation reactions are strongly dependent on the bulk In/Pt ratio. For both reactants, maximum activity was achieved for a bulk In/Pt ratio of 0.48, and at this In/Pt ratio, the selectivity to alkene was nearly 100%. Coke deposition was observed after catalyst use for either ethane or propane dehydrogenation, and it was observed that the alloying of Pt with In greatly reduced the amount of coke deposited. Characterization of the deposit by Raman spectroscopy indicates that the coke is present as highly disordered graphite particles <30 nm in diameter. While the amount of coke deposited during ethane and propane dehydrogenation are comparable, the effects on activity are dependent on reactant composition. Coke deposition had no effect on ethane dehydrogenation activity, but caused a loss in propane dehydrogenation activity. This difference is attributed to the greater ease with which coke produced on the surface of PtIn nanoparticles migrates to the support during ethane dehydrogenation versus propane dehydrogenation.

Sun, Pingping; Siddiqi, Georges; Vining, William C.; Chi, Miaofang; Bell, Alexis T. (UCB); (ORNL)

2011-10-28T23:59:59.000Z

218

Renewable Fuels and Lubricants Laboratory (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet describes the Renewable Fuels and Lubricants (ReFUEL) Laboratory at the U.S. Department of Energy National Renewable Energy Laboratory (NREL) is a state-of-the-art research and testing facility for advanced fuels and vehicles. Research and development aims to improve vehicle efficiency and overcome barriers to the increased use of renewable diesel and other nonpetroleum-based fuels, such as biodiesel and synthetic diesel derived from biomass. The ReFUEL Laboratory features a chassis dynamometer for vehicle performance and emissions research, two engine dynamometer test cells for advanced fuels research, and precise emissions analysis equipment. As a complement to these capabilities, detailed studies of fuel properties, with a focus on ignition quality, are performed at NREL's Fuel Chemistry Laboratory.

Not Available

2014-08-01T23:59:59.000Z

219

Manufacture of naphthenic type lubricating oils  

SciTech Connect (OSTI)

A process for making naphthenic type lubricating oils from a low viscosity waxy crude which comprises distilling said low viscosity waxy crude to 500 to 650/sup 0/F. At atmospheric pressure to separate distillable fractions therefrom, subjecting the residue to a vacuum distillation at about 25 to about 125 mm Hg absolute pressure to obtain one or more gas oil fractions, optionally hydrotreating said gas oil fractions in the presence of a Ni/Mo catalyst at 550 to 650/sup 0/F, 0.25 to 1.0 lhsv, and 700-1500 psig, and catalytically dewaxing said distillates in the presence of a H+ form mordenite catalyst containing a group VI or group VIII metal at 550 to 750/sup 0/F, 500 to 1500 psig and 0.25 to 5.0 lhsv, to obtain said naphthenic type oils having pour points of from about -60 to +20/sup 0/F.

Reynolds, R.W.

1981-02-24T23:59:59.000Z

220

Asphalt and Asphaltic Concrete  

E-Print Network [OSTI]

, and combined curb and gutter furnished and set, the rate for resetting old curbing; the rate per cubic yard for extra concrete, if any is used; the price per cubic yard for broken stone or gravel; the rate per square yard for paving and for relaying old...- tified and given access to the same at least ten days be- fore it is required for use, and any work in which re- jected cement was used will be rejected altogether. 5. The cement shall be packed in strong bags having printed on the outside the brand...

Young, A. R.

1914-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Mixture design and performance prediction of rubber-modified asphalt in Ohio. Final report  

SciTech Connect (OSTI)

Appropriate disposal of scrap tires has been a major environmental concern over the years, mainly due to potential fire and health hazards associated with uncontrolled stockpiling. Primarily driven by this environmental concern, the Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991 has required each State to begin incorporating scrap tire rubber into its asphalt paving materials. Although in the revision of the original ISTEA, the mandate has been eliminated, there remains a language of encouraging the use of crumb rubbers in asphalt paving materials. Ohio Department of Transportation (ODOT) desires to develop the mix design procedure, construction practice, and performance specifications for crumb rubber modified asphalt paving materials. This research was conducted to develop the needed design and construction guidance for meeting the ODOT anticipated needs. Specifically, the objectives of this research encompass the following scope: (1) investigation of the rheological properties of asphalt-rubber binder to determine optimum content of crumb rubber, (2) development of optimum mix design for various applications, including both wet and dry mix processes, (3) characterization of mechanical properties of recommended paving mixtures, including resilient modulus, fatigue cracking behavior, low-temperature thermal cracking resistance, water sensitivity test, incremental creep test and loaded wheel track test, and (4) comparison of performance of selected paving mixes.

Liang, R.Y.

1997-08-01T23:59:59.000Z

222

Project Information Form Project Title Evaluation of the Combined Effect of Recycled Asphalt Pavement (RAP),  

E-Print Network [OSTI]

(s) and Amounts Provided (by each agency or organization) Caltrans $90,315 Total Project Cost $90,315 Agency IDProject Information Form Project Title Evaluation of the Combined Effect of Recycled Asphalt of Research Project As virgin material sources become increasingly scarce, and the volume of pavement material

California at Davis, University of

223

Project Information Form Project Title Evaluation of the Combined Effect of Recycled Asphalt Pavement (RAP),  

E-Print Network [OSTI]

(s) and Amounts Provided (by each agency or organization) Caltrans $90,538 Total Project Cost $90,538 Agency IDProject Information Form Project Title Evaluation of the Combined Effect of Recycled Asphalt of Research Project As virgin material sources become increasingly scarce, and the volume of pavement material

California at Davis, University of

224

Rheological Investigation of the Influence of Acrylate Polymers on the Modification of Asphalt  

E-Print Network [OSTI]

of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia 2 Department of Civil Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia, increasing traffic volume, high traffic load, and weather accelerate the pavement deterioration.2 So, asphalt

Hussein, Ibnelwaleed A.

225

FIELD PERFORMANCE AND LABORATORY EVALUATION OF WARM MIX ASPHALT PRODUCED WITH RUBBERIZED BITUMEN  

E-Print Network [OSTI]

FIELD PERFORMANCE AND LABORATORY EVALUATION OF WARM MIX ASPHALT PRODUCED WITH RUBBERIZED BITUMEN of rubberized bitumen has been spread out mainly due to environmental aspects, but high mixing and compaction temperatures are necessary due to the higher viscosity of this bitumen. A WMA mixture (using a surfactant

Paris-Sud XI, Universit de

226

The effect of air blowing on the properties of rubber-modified asphalt binder  

E-Print Network [OSTI]

production and use. Air blowing, accompanied by high shear mixing at elevated temperatures, was used to produce many asphalt-rubber blends in an attempt to discover a binder which resists phase separation. These air-blown, rubber-modified binders were...

Bauer, Shauna Erin

1997-01-01T23:59:59.000Z

227

Analytical-Numerical Methodology to Measure Undamaged, Fracture and Healing Properties of Asphalt Mixtures  

E-Print Network [OSTI]

of the stiffness gradient at 10C in year 2 ............................ 62? Table 10.Statistical summary of the stiffness gradient at 10C test in year 3 ................... 62? Table 11.Statistical summary of stiffness gradient at 10C in year 4...? APPENDIX C ................................................................................................................ 155? vii LIST OF FIGURES Figure 1.Air void distribution in field asphalt layers...

Koohi, Yasser 1980-

2012-08-29T23:59:59.000Z

228

Influence of coarse aggregate size, shape and surface texture on rutting of hot mix asphalt concrete  

E-Print Network [OSTI]

increased Hveem Stability, Marshall Stability and resistance to creep of hot mix asphalt concrete. The resilient modulus of the specimens was also enhanced by the increase in the amount of crushed aggregate in the mix at high temperatures (115'F). Fractal...

Yeggoni, Mohan

1993-01-01T23:59:59.000Z

229

Development and application of a lubricant composition model to study effects of oil transport, vaporization, fuel dilution, and soot contamination on lubricant rheology and engine friction  

E-Print Network [OSTI]

Engine oil lubricants play a critical role in controlling mechanical friction in internal combustion engines by reducing metal-on-metal contact. This implies the importance of understanding lubricant optimization at the ...

Gu, Grace Xiang

2014-01-01T23:59:59.000Z

230

Tribological Investigation of Mahua Oil Based Lubricant for Maintenance Applications  

E-Print Network [OSTI]

Limited crude reserves, consistently rising oil prices, unsafe disposal of the harmful lubricants and its guaranteed adverse aftereffects has increased concern for replenishing the environment. Development of environmental friendly lubricants and its appropriate usage is an option of prime importance which can overcome such problems. This paper investigates the prospects of Mahua oil based lubricant for maintenance applications. Mahua oil is blended with conventional gear oil (90T) in different ratios. Tribo pair used is plain carbon steel cylindrical pin and mild steel disc. Friction and wear parameters have been studied on Pin on Disc Tester under varying conditions. Worn out pins suggests pronounced abrasive and adhesive wear pattern under boundary film lubricated conditions. Experimentation reveals that addition of mahua oil blended with 90 T oil has good wear reducing traits apart from environmental benefits.

Amit Suhane; A. Rehman; H. K. Khaira

231

Tribological Properties of Ionic Liquids Lubricants Containing Nanoparticles  

E-Print Network [OSTI]

Recently, there has been an increase in research in the application of ionic liquids containing nanoparticles as lubricants due to their properties such as thermally stability, non-volatility and non-flammability. The purpose of this thesis...

Lu, Wei

2014-05-14T23:59:59.000Z

232

Enhanced engine efficiency through subsystem lubricant viscosity investigations  

E-Print Network [OSTI]

This study initiates a three-year project to investigate the potential benefits in fuel efficiency, engine emissions, lubricant longevity, and engine durability. Two experimental testing platforms were designed and implemented ...

Martins, Toms V

2014-01-01T23:59:59.000Z

233

Lubrication in a corner Roman Stocker and A. E. Hosoi  

E-Print Network [OSTI]

Lubrication in a corner Roman Stocker and A. E. Hosoi August 24, 2004 HML Report Number 04-P-03 ??) A mathematical model for the evolution of a thin film in an interior corner region is pre- sented. The model

Hosoi, Anette "Peko"

234

Sulfurized olefin lubricant additives and compositions containing same  

SciTech Connect (OSTI)

Lubricant additives having substantially improved extreme pressure characteristics are provided by modifying certain sulfurized olefins by reacting said olefins with a cyclic polydisulfide under controlled reaction conditions and at a temperature of at least about 130/sup 0/ C.

Braid, M.

1980-03-25T23:59:59.000Z

235

Choline for neutralizing naphthenic acid in fuel and lubricating oils  

SciTech Connect (OSTI)

A method is described of neutralizing at least a portion of the naphthenic acids present in fuel and lubricating oils which contain naphthenic acids which comprises treating these oils with a neutralizing amount of choline.

Ries, D.G.; Roof, G.L.

1986-07-15T23:59:59.000Z

236

A Model for the Nonlinear Mechanical Behavior of Asphalt Binders and its Application in Prediction of Rutting Susceptibility  

E-Print Network [OSTI]

The mechanical behavior of asphalt binders is nonlinear. The binders exhibit shear thinning/thickening behavior in steady shear tests and non-proportational behavior in other standard viscoelastic tests such as creep-recovery or stress relaxation...

Srinivasa Parthasarathy, Atul

2013-04-30T23:59:59.000Z

237

Application of Direct Tension Testing to Laboratory Samples to Investigate the Effects of Hot Mix Asphalt Aging  

E-Print Network [OSTI]

While the oxidation of binders in hot mix asphalt (HMA) pavements and its subsequent detrimental effects on pavement life have been well recognized in the last few years, many important issues have not yet been investigated. Understanding how best...

Padigala, Meghana 1989-

2012-12-07T23:59:59.000Z

238

Fatigue resistance of hot-mix asphalt concrete (HMAC) mixtures using the calibrated mechanistic with surface energy (CMSE) measurements approach  

E-Print Network [OSTI]

Fatigue cracking is one of the fundamental distresses that occur in the life of a Hot Mix Asphalt Concrete (HMAC) pavement. This load induced distress leads to structural collapse of the entire pavement ultimately and can only be remedied...

Ofori-Abebresse, Edward Kwame

2006-10-30T23:59:59.000Z

239

Modeling Hot Mix Asphalt Compaction Using a Thermodynamics Based Compressible Viscoelastic Model within the Framework of Multiple Natural Configurations  

E-Print Network [OSTI]

asphalt (HMA) using the notion of multiple natural configurations. A thermodynamic framework is employed to study the non-linear dissipative response associated with HMA by specifying the forms for the stored energy and the rate of dissipation function...

Koneru, Saradhi

2011-10-21T23:59:59.000Z

240

An Experimental Study into the Ignition of Methane and Ethane Blends in a New Shock-tube Facility  

E-Print Network [OSTI]

AN EXPERIMENTAL STUDY INTO THE IGNITION OF METHANE AND ETHANE BLENDS IN A NEW SHOCK-TUBE FACILITY A Thesis by CHRISTOPHER JOSEPH ERIK AUL 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 2009 Major Subject: Mechanical Engineering AN EXPERIMENTAL STUDY INTO THE IGNITION OF METHANE AND ETHANE BLENDS IN A NEW SHOCK-TUBE FACILITY A Thesis...

Aul, Christopher Joseph Erik

2011-02-22T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

The interaction second virial coefficient for the ethane-carbon dioxide system between 250 and 300 K  

E-Print Network [OSTI]

THE INTERACTION SECOND VIRIAL COEFFICIENT FOR THE ETHANE-CARBON DIOXIDE SYSTEM BETWEEN 250 AND 300 K A Thesis by JOSEPH GLENN YOUNG Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1978 Major Subject: Chemical Engineering THE INTERACTION SECOND VIRIAL COEFFICIENT FOR THE ETHANE-CARBON DIOXIDE SYSTEM BETWEEN 250 AND 300 K A Thesis by JOSEPH GLENN YOUNG Approved as to style and content by...

Young, Joseph Glenn

1978-01-01T23:59:59.000Z

242

AIRBORNE, OPTICAL REMOTE SENSNG OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. The scope of the work involved designing and developing an airborne, optical remote sensor capable of sensing methane and, if possible, ethane for the detection of natural gas pipeline leaks. Flight testing using a custom dual wavelength, high power fiber amplifier was initiated in February 2005. Ophir successfully demonstrated the airborne system, showing that it was capable of discerning small amounts of methane from a simulated pipeline leak. Leak rates as low as 150 standard cubic feet per hour (scf/h) were detected by the airborne sensor.

Jerry Myers

2005-04-15T23:59:59.000Z

243

Method of removing an immiscible lubricant from a refrigeration system and apparatus for same  

DOE Patents [OSTI]

A method of separating an immiscible lubricant from a liquid refrigerant in a refrigerating system including a compressor, a condenser, an expansion device and an evaporator, wherein the expansion device is connected to the condenser by a liquid refrigerant flow line for liquid refrigerant and immiscible lubricant. The method comprising slowing the rate of flow of the liquid refrigerant and immiscible lubricant between the condenser and the expansion device such that the liquid refrigerant and the immiscible lubricant separate based upon differences in density. The method also comprises collecting the separated immiscible lubricant in a collection chamber in fluid communication with the separated immiscible lubricant. Apparatus for performing the method is also disclosed.

Spauschus, Hans O. (Stockbridge, GA); Starr, Thomas L. (Roswell, GA)

1999-01-01T23:59:59.000Z

244

Method to improve lubricity of low-sulfur diesel and gasoline fuels  

DOE Patents [OSTI]

A method for providing lubricity in fuels and lubricants includes adding a boron compound to a fuel or lubricant to provide a boron-containing fuel or lubricant. The fuel or lubricant may contain a boron compound at a concentration between about 30 ppm and about 3,000 ppm and a sulfur concentration of less than about 500 ppm. A method of powering an engine to minimize wear, by burning a fuel containing boron compounds. The boron compounds include compound that provide boric acid and/or BO.sub.3 ions or monomers to the fuel or lubricant.

Erdemir, Ali

2004-08-31T23:59:59.000Z

245

Isochoric measurements of an equimolar mixture of carbon dioxide and ethane  

E-Print Network [OSTI]

) . ~-~YC K. N. Marsh (Member) R. C. Wilhoit (Member) R. W. Flumerfelt (Head of Department) May 1992 ABSTRACT Isochoric Measurements of an Equimolar Mixture of Carbon Dioxide-Ethane. (May 1992} Michael William Kidd B. S. , Clemson University... obtained from Burnett and pycnometer measurements to provide experimental information about PVT behavior, vapor pressures and the phase boundaries of the mixture. The PVT measurements are used to calculate residual energies and entropies at five...

Kidd, Michael William

1992-01-01T23:59:59.000Z

246

Studies of mechanisms and kinetics of methane and ethane steam reforming on nickel catalysts  

SciTech Connect (OSTI)

Methane and ethane adsorption/desorption and reaction on steam-reforming catalysts, Ni(INCO), Ni/ZrO{sub 2}, and Ni/CaAl{sub 2}O{sub 4}, were studied by temperature-programmed desorption (TPD), temperature-programmed surface reaction (TPSR), and thermogravimetric (TGA) techniques. The data show that only a fraction of the methane adsorbed (determined by TPSR with H{sub 2}) on nickel catalysts is desorbed during TPD experiments. The results of TPD indicate supports and promoters affect the adsorption of methane and ethane, and transformation of adsorbed carbon species. Several carbon types formed during methane and ethane adsorptions including {alpha}, {beta}, {gamma}, vermicular (v), and graphitic (c) carbon can be identified by TPSR. These data indicate that the distribution of these carbon forms is also strongly a function of adsorption temperature and catalyst. The results show that there are significant quantities of CH{sub 4}, CO, and CO{sub 2} desorbed during TPSR reaction of H{sub 2}O with preadsorbed CH{sub 4}, CD{sub 4} and C{sub 2}H{sub 6}. The agreement between previously reported steady-state and the unsteady-state steam reforming reforming rates of this study indicates that the steam-reforming kinetic data can be quantitatively measured by TPSR experiments.

Hsieh, H.Y.

1988-01-01T23:59:59.000Z

247

Kinetic simulation of heterogeneous catalytic processes: Ethane hydrogenolysis over supported group VIII metals  

SciTech Connect (OSTI)

A kinetic model for ethane hydrogenolysis over Pt, Pd, Ir, and Co was formulated in terms of essentially two chemical parameters: the strength of bonding between atomic hydrogen and the metal surface and the strength of carbon-metal bonding between hydrocarbon fragments and the surface. These two surface bond strengths were estimated by calorimetric measurements of the heats of H{sub 2} and CO adsorption, combined with bond order conservation calculations. The results of the kinetic simulations suggest that ethane hydrogenolysis over Pt, Pd, Ir and Co takes place through irreversible C-C rupture of C{sub 2}H{sub 4} and C{sub 2}H{sub 3} surface species. Hydrogenation of monocarbon CH{sub y} fragments is kinetically insignificant. Dissociative adsorption of hydrogen is an equilibrated process, while dissociative adsorption of ethane is slow and reversible. Finally, the role of kinetic modeling in the formulation, interpretation, and generalization of experimental research in heterogeneous catalysis is discussed.

Goddard, S.A.; Amiridis, M.D.; Rekoske, J.E.; Cardona-Martinez, N.; Dumesic, J.A. (Univ. of Wisconsin, Madison (USA))

1989-05-01T23:59:59.000Z

248

An economical route to high quality lubricants  

SciTech Connect (OSTI)

The current rends in the automotive and industrial markets toward more efficient engines, longer drain intervals, and lower emissions all contribute to placing increasingly stringent performance requirements on lubricants. The demand for higher quality synthetic and non-conventional basestocks is expected to grow at a much faster rate than that of conventional lube basestocks to meet these higher performance standards. Yukong Limited has developed a novel technology (the Yukong UCO Lube Process) for the economic production of high quality, high-viscosity-index lube basestocks from a fuels hydrocracker unconverted oil stream. A pilot plant based on this process has been producing oils for testing purposes since May 1994. A commercial facility designed to produce 3,500 BPD of VHVI lube basestocks cane on-stream at Yukong`s Ulsan refinery in October 1995. The Badger Technology Center of Raytheon Engineers and Constructors assisted Yukong during the development of the technology and prepared the basic process design package for the commercial facility. This paper presents process aspects of the technology and comparative data on investment and operating costs. Yukong lube basestock product properties and performance data are compared to basestocks produced by conventional means and by lube hydrocracking.

Andre, J.P. [Raytheon Engineers and Constructors, Inc., Cambridge, MA (United States); Hahn, S.K.; Kwon, S.H.; Min, W.

1996-12-01T23:59:59.000Z

249

Rotary seal with enhanced lubrication and contaminant flushing  

DOE Patents [OSTI]

A resilient, ring shaped interference-type hydrodynamic rotary seal having waves on the lubricant side which provide increased film thickness and flushing action by creating contact pressure induced angulated restrictions formed by abrupt restrictive diverters. The angulated restrictions are defined by projecting ridges, corners at the trailing edge of the waves, or simply by use of a converging shape at the trailing edge of the waves which is more abrupt than the gently converging hydrodynamic inlet shape at the leading edge of the waves. The abrupt restrictive diverter performs two functions; a restricting function and a diverting function. The angulated restrictions cause a local film thickness restriction which produces a damming effect preventing a portion of the lubricant from leaking out of the dynamic sealing interface at the trailing edge of the wave, and results in a much thicker lubricant film thickness under the waves. This contributes to more film thickness in the remainder of the dynamic sealing interface toward the environment because film thickness tends to decay gradually rather than abruptly due to the relative stiffness of the seal material. Because of the angle of the abrupt restrictive diverter relative to the relative rotation direction, in conjunction with the restriction or damming effect, a strong diverting action is produced which pumps lubricant across the dynamic sealing interface toward the environment. The lubricant diversion is caused by the component of the rotational velocity tangent to the abrupt restrictive diverter. The component of rotational velocity normal to the abrupt restrictive diverter causes a portion of the lubricant film to be pumped past the abrupt restrictive diverter, thereby assuring adequate lubrication thereof.

Dietle, Lannie L. (Sugar Land, TX)

2000-01-01T23:59:59.000Z

250

Performance of MOV Stem Lubricants at Elevated Temperatures  

SciTech Connect (OSTI)

This paper documents the results of recent tests sponsored by the U. S. Nuclear Regulatory Commission (NRC) and performed by the Idaho National Engineering and Environmental Laboratory (INEEL). These tests address the effectiveness of the lubricant used on the threaded portion of the valve stem, where the stem nut turns on the stem. Recent testing indicates that an elevated temperature environment can lead to significant increases in the friction coefficient at the stem/stem-nut interface. Most valve actuator qualification tests are performed at room temperature. Similarly, in-service tests are run at ambient plant temperatures, usually 70 to 100F. Since design conditions can lead to valve operating temperatures in the 200 to 300F range, it is important to know whether a temperature-induced increase in friction at the stem/stem-nut interface will prevent the required operation of critical valves. Lubricant aging is another phenomenon that might have deleterious effects on the thrust output of a valve actuator. Laboratory experience and field experience both indicate that after long periods in elevated temperature environments, the lubricants may lose their lubrication qualities. The scope of the current test program includes testing of five different lubricants on four different valve stems. Pending completion of the testing, results of the tests conducted using two of the four stems are discussed. The test series included collection of baseline data at room temperature, single step temperature tests where the temperature of the test setup was elevated directly to 250F, and step testing where the temperature was elevated in steps to 130, 190, and 250F, then returned to 70F. All greases tested showed evidence of physical change after elevated temperature tests. Except for one particular lubricant, all of the greases tested showed increased coefficients of friction at elevated temperatures. Numerous other preliminary conclusions are presented. Recommendations for future research in the area of aged valve stem lubricant performance at elevated temperatures are also presented.

DeWall, Kevin George; Nitzel, Michael Everett; Watkins, John Clifford

2001-07-01T23:59:59.000Z

251

Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium  

DOE Patents [OSTI]

A process for producing alkyl esters useful in biofuels and lubricants by transesterifying glyceride- or esterifying free fatty acid-containing substances in a single critical phase medium is disclosed. The critical phase medium provides increased reaction rates, decreases the loss of catalyst or catalyst activity and improves the overall yield of desired product. The process involves the steps of dissolving an input glyceride- or free fatty acid-containing substance with an alcohol or water into a critical fluid medium; reacting the glyceride- or free fatty acid-containing substance with the alcohol or water input over either a solid or liquid acidic or basic catalyst and sequentially separating the products from each other and from the critical fluid medium, which critical fluid medium can then be recycled back in the process. The process significantly reduces the cost of producing additives or alternatives to automotive fuels and lubricants utilizing inexpensive glyceride- or free fatty acid-containing substances, such as animal fats, vegetable oils, rendered fats, and restaurant grease.

Ginosar, Daniel M.; Fox, Robert V.

2005-05-03T23:59:59.000Z

252

Thickness estimation of subsurface layers in asphalt pavement using monstatic ground penetrating radar  

E-Print Network [OSTI]

for the degree of MASTER OF SCIENCE December 1991 Major Subject: Electrical Engineering THICKNESS ESTIMATION OF SUBSURFACE LAYERS IN ASPHALT PAVEMENT USING MONSTATIC GROUND PENETRATING RADAR A Thesis CHUN LOK LAU Approved as to style and content by... ACKNOWLEDGEMENTS. LIST OF FIGURES. . CHAPTER I INTRODUCTION. 1. 1 Importance of pavement profile data. 1. 2 Principle of Ground Penetrating Radar (GPR) . . . 1. 3 Subsurface layer thickness measurement method. . . . . . II GPR ANTENNA AND SYSTEM CALIBRATION...

Lau, Chun Lok

1991-01-01T23:59:59.000Z

253

The Effects of Using Alkali-Silica Reaction Affected Recycled Concrete Aggregate in Hot Mix Asphalt  

E-Print Network [OSTI]

-RCA in an HMA pavement were identified. Results obtained using accelerated laboratory conditions were extrapolated based on anticipated field conditions. Guidelines for the mitigation of potential distresses in HMA made with ASR-RCA are presented. v... through the Airfield Asphalt Pavement Technology Program. Finally, thanks to my mother and father for their encouragement and to my fianc?e for her patience and love. vii NOMENCLATURE AFB - Air Force Base AASHTO - American Association of State...

Geiger, Brian James

2011-10-21T23:59:59.000Z

254

Automated Protocol for the Analysis of Dynamic Mechanical Analyzer Date from Fine Aggregate Asphalt Mixes  

E-Print Network [OSTI]

AUTOMATED PROTOCOL FOR ANALYSIS OF DYNAMIC MECHANICAL ANALYZER DATA FROM FINE AGGREGATE ASPHALT MIXES A Thesis by PEDRO CAVALCANTI DE SOUSA Submitted to the Office of Graduate Studies of Texas A&M University in partial... by PEDRO CAVALCANTI DE SOUSA 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 Approved by: Co-Chairs of Committee, Dallas N. Little Eyad Masad...

Cavalcanti De Sousa, Pedro

2010-10-12T23:59:59.000Z

255

In situ control of lubricant properties for reduction of power cylinder friction through thermal barrier coating  

E-Print Network [OSTI]

Lowering lubricant viscosity to reduce friction generally carries a side effect of increased metal-metal contact in mixed or boundary lubrication, for example near top ring reversal along the engine cylinder liner. A ...

Molewyk, Mark Allen

2014-01-01T23:59:59.000Z

256

Lubricant-Friendly, Superhard and Low-Friction Coatings by Design...  

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

Lubricant-Friendly, Superhard and Low-Friction Coatings by Design Lubricant-Friendly, Superhard and Low-Friction Coatings by Design Superhard and low-friction coatings and surface...

257

Viscosity, relaxation time, and dynamics within a model asphalt of larger molecules  

SciTech Connect (OSTI)

The dynamics properties of a new next generation model asphalt system that represents SHRP AAA-1 asphalt using larger molecules than past models is studied using molecular simulation. The system contains 72 molecules distributed over 12 molecule types that range from nonpolar branched alkanes to polar resins and asphaltenes. Molecular weights range from 290 to 890 g/mol. All-atom molecular dynamics simulations conducted at six temperatures from 298.15 to 533.15 K provide a wealth of correlation data. The modified Kohlrausch-Williams-Watts equation was regressed to reorientation time correlation functions and extrapolated to calculate average rotational relaxation times for individual molecules. The rotational relaxation rate of molecules decreased significantly with increasing size and decreasing temperature. Translational self-diffusion coefficients followed an Arrhenius dependence. Similar activation energies of ?42 kJ/mol were found for all 12 molecules in the model system, while diffusion prefactors spanned an order of magnitude. Viscosities calculated directly at 533.15 K and estimated at lower temperatures using the Debye-Stokes-Einstein relationship were consistent with experimental data for asphalts. The product of diffusion coefficient and rotational relaxation time showed only small changes with temperature above 358.15 K, indicating rotation and translation that couple self-consistently with viscosity. At lower temperatures, rotation slowed more than diffusion.

Li, Derek D.; Greenfield, Michael L., E-mail: greenfield@egr.uri.edu [Department of Chemical Engineering, University of Rhode Island, Kingston, Rhode Island 02881 (United States)

2014-01-21T23:59:59.000Z

258

Properties of carbon overcoats and perfluoro-polyether lubricants in hard disk drives  

E-Print Network [OSTI]

interactions of perfluoropolyether lubricants with magnetichydroxyl-terminated perfluoropolyether liquid films on theand R.L. Siemens, "Perfluoropolyether characterization by

Brunner, Ralf

2009-01-01T23:59:59.000Z

259

Research update: Materials compatibility and lubricant research (MCLR) program  

SciTech Connect (OSTI)

Since September 1991, the Air-Conditioning and Refrigeration Technology Institute (ARTI) has been conducting materials compatibility and lubricants research on CFC and HCFC refrigerant alternatives. This work has been supported by a grant from the US Department of Energy, Office of Building Technology, with co-funding from the Air-Conditioning and Refrigeration Technology Institute (ARI). During the first two and one-half years of this program, ARTI has subcontracted and managed twenty-one research projects totaling over $5.2 million. This research has included materials compatibility tests, refrigerant-lubricant interaction studies, measurement of thermophysical properties, and development of accelerated test methods. This paper summarizes results to date and discusses plans for future research for the Materials Compatibility and Lubricants Research (MCLR) program.

Szymurski, S.R.

1994-04-01T23:59:59.000Z

260

Finite-element discretization of a linearized 2 -D model for lubricated oil transportation  

E-Print Network [OSTI]

Finite-element discretization of a linearized 2 - D model for lubricated oil transportation V acts as a lubricant by coating the wall of the pipeline, thus preventing the oil from adhering is devoted to the numerical simulation of a linearized model for the lubricated trans- portation of heavy

Frey, Pascal

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Modification of boundary lubrication by oil-soluble friction modifier Yingxi Zhua  

E-Print Network [OSTI]

Modification of boundary lubrication by oil-soluble friction modifier additives Yingxi Zhua in lubricants of the type used at the wet clutch interface in automatic transmissions has been studied using in the boundary lubrication regime and compared to a fully-formulated automatic transmission fluid (ATF). 1

Granick, Steve

262

Wear 260 (2006) 12951304 On the friction and wear performance of boric acid lubricant  

E-Print Network [OSTI]

effective in terms of both friction and wear performance. Based on the success of the combined lubricant experiments, the boric acid was then mixed with canola oil to form a completely natural lubricant combination the undesirable effects of wear, lubricants are generally applied along the interface of contacting materials

Sawyer, Wallace

263

Development of asphalts and pavements using recycled tire rubber. Phase 1, Technical feasibility. Technical progress report, September 1, 1994--August 31, 1995  

SciTech Connect (OSTI)

About 285 million tires are discarded every year; less than 100 million are currently being recycled, with the rest being placed in landfills and other waste sites. A solution to reduce the littering of the environment is to use ground tire rubber in road construction. Currently, about 27 million tons of asphalt are used each year in road construction and maintenance of the country`s 2 million miles of roads. If all of the waste tire rubber could be combined with asphalt in road construction, it would displace less than 6% of the total asphalt used each year, yet could save about 60 trillion Btus annually. Purpose of this project is to provide data needed to optimize the performance of rubber-asphalt concretes. The first phase is to develop asphalts and recycling agents tailored for compatibility with ground tire rubber. Chapter 2 presents results on Laboratory Testing and Evaluation: fractionate asphalt material, reblending for aromatic asphalts, verifying optimal curing parameters, aging of blends, and measuring ductilities of asphalt-rubber binders. Chapter 3 focuses on Evaluating Mixture Characteristics (modified binders). Chapter 4 covers Adhesion Test Development (water susceptibility is also covered). The final chapter focuses on the Performance/Economic Update and Commercialization Plan.

Bullin, J.A.; Davison, R.R.; Glover, C.J. [and others

1996-06-01T23:59:59.000Z

264

Water as a lubricant for Stirling air engines: design considerations and operating experience  

SciTech Connect (OSTI)

Air is favoured as the working fluid for large, slow-running Stirling engines. Lubricating oil entering the working space could combine with compressed, heated air to form a mixture capable of spontaneous combustion. To preclude this possibility, water may be used as the lubricant in Stirling air engines. This paper reviews the lubrication requirements of Stirling air engines and the potential of water to fulfil these requirements. Some bearing and seal materials suitable for water-lubricated Stirling engines are reviewed in terms of a design case study for a 20 kW water lubricated Ringbom-Stirling air engine. Early operating experience with this engine is reported.

Fauvel, O.R.; van Benthem, J.; Walker, G.

1983-08-01T23:59:59.000Z

265

Unburned lubricant produces 60%90% of organic carbon emissions.  

E-Print Network [OSTI]

Unburned lubricant produces 60%­90% of organic carbon emissions. While diesel fuel is often viewed for gasoline light-duty vehicles are very effective at controlling organic carbon (OC) emissions. Diesel as the most polluting of conventional petroleum-based fuels, emissions from gasoline engines can more

266

AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPLINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. The third six-month technical report contains a summary of the progress made towards finalizing the design and assembling the airborne, remote methane and ethane sensor. The vendor has been chosen and is on contract to develop the light source with the appropriate linewidth and spectral shape to best utilize the Ophir gas correlation software. Ophir has expanded upon the target reflectance testing begun in the previous performance period by replacing the experimental receiving optics with the proposed airborne large aperture telescope, which is theoretically capable of capturing many times more signal return. The data gathered from these tests has shown the importance of optimizing the fiber optic receiving fiber to the receiving optic and has helped Ophir to optimize the design of the gas cells and narrowband optical filters. Finally, Ophir will discuss remaining project issues that may impact the success of the project.

Jerry Myers

2004-05-12T23:59:59.000Z

267

AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. This second six-month technical report summarizes the progress made towards defining, designing, and developing the hardware and software segments of the airborne, optical remote methane and ethane sensor. The most challenging task to date has been to identify a vendor capable of designing and developing a light source with the appropriate output wavelength and power. This report will document the work that has been done to identify design requirements, and potential vendors for the light source. Significant progress has also been made in characterizing the amount of light return available from a remote target at various distances from the light source. A great deal of time has been spent conducting laboratory and long-optical path target reflectance measurements. This is important since it helps to establish the overall optical output requirements for the sensor. It also reduces the relative uncertainty and risk associated with developing a custom light source. The data gathered from the optical path testing has been translated to the airborne transceiver design in such areas as: fiber coupling, optical detector selection, gas filters, and software analysis. Ophir will next, summarize the design progress of the transceiver hardware and software development. Finally, Ophir will discuss remaining project issues that may impact the success of the project.

Jerry Myers

2003-11-12T23:59:59.000Z

268

Use of Textured Surfaces to Mitigate Sliding Friction and Wear of Lubricated and Non-Lubricated Contacts  

SciTech Connect (OSTI)

If properly employed, the placement of three-dimensional feature patterns, also referred to as textures, on relatively-moving, load-bearing surfaces can be beneficial to their friction and wear characteristics. For example, geometric patterns can function as lubricant supply channels or depressions in which to trap debris. They can also alter lubricant flow in a manner that produces thicker load-bearing films locally. Considering the area occupied by solid areas and spaces, textures also change the load distribution on surfaces. At least ten different attributes of textures can be specified, and their combinations offer wide latitude in surface engineering. By employing directional machining and grinding procedures, texturing has been used on bearings and seals for well over a half century, and the size scales of texturing vary widely. This report summarizes past work on the texturing of load-bearing surfaces, including past research on laser surface dimpling of ceramics done at ORNL. Textured surfaces generally show most pronounced effects when they are used in conformal or nearly conformal contacts, like that in face seals. Combining textures with other forms of surface modification and lubrication methods can offer additional benefits in surface engineering for tribology. As the literature and past work at ORNL shows, texturing does not always provide benefits. Rather, the selected pattern and arrangement of features must be matched to characteristics of the proposed application, bearing materials, and lubricants.

Blau, Peter Julian [ORNL

2012-03-01T23:59:59.000Z

269

The application of triaxial compression tests to the design of sand-asphalt paving mixtures  

E-Print Network [OSTI]

' this fact, the f1ne yecxk was chosen as the aggregate to be used in all sand. -asphalt miztures tested 1n this pro/oct. It must be emphasise4. , that no sand sample, Lxas tested, mox ~ than ) " x i x . . y . * once during ths analpsis of the sands... shearing strength increases as the amount of mineral filler increases, thu ~ confirming the theory that the increase 1n surface area of the aggregate caused by the addition of dust must be taken ~ care of by an increase 1n the amount of bitumen used...

Ritter, Leo J

2012-06-07T23:59:59.000Z

270

Establishing material properties for thin asphalt concrete surfaces on granular bases  

E-Print Network [OSTI]

cross-section of a Goodyear Hi -Miler 10. 00-20 14-ply bias truck tire carcass was obtained; the input data for the Tielking tire model was developed by measuring cord locations, angles, and plies on a section of the tire; and the tire pressure.... Since little work in the past has been done in the area of thin asphalt concrete surface analysis, re-evaluation of several assumptions concerning the tire load were necessary. The truck tire pressures on Texas highways have dramatically increased...

Rosson, Barry Thomas

1985-01-01T23:59:59.000Z

271

Ethan Frome  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"Click worksheet9,1,50022,3,,,,6,1,,781 2,328 2,683Diesel

272

Lubrication Oil Condition Monitoring and Remaining Useful Life Prediction with Particle Filtering  

E-Print Network [OSTI]

In order to reduce the costs of wind energy, it is necessary to improve the wind turbine availability and reduce the operational and maintenance costs. The reliability and availability of a functioning wind turbine depend largely on the protective properties of the lubrication oil for its drive train subassemblies such as the gearbox and means for lubrication oil condition monitoring and degradation detection. The wind industry currently uses lubrication oil analysis for detecting gearbox and bearing wear but cannot detect the functional failures of the lubrication oils. The main purpose of lubrication oil condition monitoring and degradation detection is to determine whether the oils have deteriorated to such a degree that they no longer fulfill their functions. This paper describes a research on developing online lubrication oil condition monitoring and remaining useful life prediction using particle filtering technique and commercially available online sensors. It first introduces the lubrication oil condition monitoring and degradation detection for wind turbines. Viscosity and dielectric constant are selected as the performance parameters to model the degradation of lubricants. In particular, the lubricant performance evaluation and remaining useful life prediction of degraded lubrication oil with viscosity and dielectric constant data using particle filtering are presented. A simulation study based on lab verified models is provided to demonstrate the effectiveness of the developed technique. 1.

Junda Zhu; Jae M. Yoon; David He; Yongzhi Qu; Eric Bechhoefer

273

A Minimum Free Energy Reaction Path for the E2 Reaction between Fluoro Ethane and a Fluoride Ion  

E-Print Network [OSTI]

A Minimum Free Energy Reaction Path for the E2 Reaction between Fluoro Ethane and a Fluoride Ion, such as the mechanism and the free-energy profile, remains an important challenge not only for enzyme catalysis1 of the reaction free-energy profile is very cumbersome with constrained molecular dynamics (MD) and umbrella

Nielsen, Steven O.

274

Recycling spent sandblasting grit and similar wastes as aggregate in asphaltic concrete. Technical data sheet  

SciTech Connect (OSTI)

The Naval Facilities Engineering Service Center (NFESC), Port Hueneme, California, and Naval Facilities Engineering Command Engineering Field Activity, West, San Bruno, California, took overall leadership in identifying and testing methods to manage waste generated from a machine shop located at Hunters Point Annex, at Naval Station, Treasure Island, California. Ship cleaning and equipment maintenance resulted in the accumulation of 4,665 tons of spent sandblasting grit at the site. The spent grit, consisting of silica sand plus a small amount of slag-derived grit, had the physical characteristics of coarse-grained beach sand and also contained fragments of coatings. The spent grit had the potential for exhibiting hazardous characteristics since the coatings included lead-based primers, copper, and butyltin-containing antifouling topcoats. The most beneficial application of reusing the spent grit was to use it as a replacement for some of the fine aggregate in asphaltic concrete. A test program was established that included characterization, bench-scale testing, long-term pilot scale testing, and a full-scale demonstration. Full-scale asphalt production provided samples which proved both the chemical leaching resistance and physical performance characteristics were acceptable.

Heath, J.C.; Nelson, B.

1998-12-01T23:59:59.000Z

275

Methane and carbon monoxide emissions from asphalt pavement: Measurements and estimates of their important to global budgets  

SciTech Connect (OSTI)

The authors measured emissions of methane from asphalt surfaces used in pavement for roadways. Maximum emissions were 22 mg/m{sup 2}/hr for 1- to 4-week-old pavement during maximum sunlight intensity. Emissions were much smaller at low sunlight intensity and dropped off to negligible amounts at night. Smaller emissions were observed for asphalt pavement of 2.5 to 3 years approximate age under similar conditions. Comparison measurements of carbon monoxide emissions resulted in maximum emissions of about 2.6 mg/m{sup 2}hr for 1-week-old pavement. These findings indicate that emissions of CH{sub 4} and CO are a function of both sunlight and temperature. Based on these results, methane emissions from asphalt pavement cannot be a significant source of atmospheric methane as compared to other identified methane sources. Therefore, although asphalt methane emissions are a form of fossil fuel methane, they cannot explain the relatively high fraction of {sup 14}C-depleted methane in the atmosphere.

Tyler, S.C.; Dlugokencky, E.; Zimmerman, P.R.; Cicerone, R.J. (National Center for Atmospheric Research, Boulder, CO (USA)); Lowe, D.C. (Institute of Nuclear Sciences, Lower Hutt (New Zealand))

1990-08-20T23:59:59.000Z

276

Low Voltage Reversible Electrowetting Exploiting Lubricated Polymer Honeycomb Substrates  

E-Print Network [OSTI]

Low-voltage electrowetting-on-dielectric scheme realized with lubricated honeycomb polymer surfaces is reported. Polycarbonate honeycomb reliefs manufactured with the breath-figures self-assembly were impregnated with silicone and castor oils. The onset of the reversible electrowetting for silicone oil impregnated substrates occurred at 35 V, whereas for castor oil impregnated ones it took place at 80 V. The semi-quantitative analysis of electrowetting of impregnated surfaces is proposed.

Edward Bormashenko; Roman Pogreb; Yelena Bormashenko; Roman Grynyov; Oleg Gendelman

2014-06-16T23:59:59.000Z

277

A novel system to study wear, friction, and lubricants  

SciTech Connect (OSTI)

A novel enclosed (pressurized) multispecimen wear testing system was design and built to allow the fully computerized on-line measurement and control of friction, wear, and lubricants of different materials (metals, ceramics, composites, and plastics). This system is described in detail. The tribological parameters can be adjusted and controlled to reproduce the actual conditions that prevail in machine components. Several examples of the capabilities of the system are presented.

Maamouri, M.; Masson, J.F.; Marchand, N.J. (Ecole Polytechnique, Montreal, Quebec (Canada). Dept. de Metallurgie et de Genie des Materiaux)

1994-08-01T23:59:59.000Z

278

Method of removing an immiscible lubricant from a refrigeration system and apparatus for same  

DOE Patents [OSTI]

A method is described for separating an immiscible lubricant from a liquid refrigerant in a refrigerating system including a compressor, a condenser, an expansion device and an evaporator, wherein the expansion device is connected to the condenser by a liquid refrigerant flow line for liquid refrigerant and immiscible lubricant. The method comprising slowing the rate of flow of the liquid refrigerant and immiscible lubricant between the condenser and the expansion device such that the liquid refrigerant and the immiscible lubricant separate based upon differences in density. The method also comprises collecting the separated immiscible lubricant in a collection chamber in fluid communication with the separated immiscible lubricant. Apparatus for performing the method is also disclosed. 3 figs.

Spauschus, H.O.; Starr, T.L.

1999-03-30T23:59:59.000Z

279

Infrared Spectra and Optical Constants of Astronomical Ices: II. Ethane and Ethylene  

E-Print Network [OSTI]

Infrared spectroscopic observations have established the presence of hydrocarbon ices on Pluto and other TNOs, but the abundances of such molecules cannot be deduced without accurate optical constants (n, k) and reference spectra. In this paper we present our recent measurements of near- and mid-infrared optical constants for ethane (C$_2$H$_6$) and ethylene (C$_2$H$_4$) in multiple ice phases and at multiple temperatures. As in our recent work on acetylene (C$_2$H$_2$), we also report new measurements of the index of refraction of each ice at 670 nm. Comparisons are made to earlier work where possible, and electronic versions of our new results are made available.

Hudson, R L; Moore, M H

2015-01-01T23:59:59.000Z

280

The oxidative dehydrogenation of ethane with nitrous oxide by molybdenum oxide supported on silica gel  

E-Print Network [OSTI]

pmole/min/g Ho for the formation of ethylene corresponds to a conversion of 0. 6% based on ethane. The steady state rates were low at temperatures less than 350 C, wnereas tne selectivity to ethylene (defined as mole ethylene/mole ethylene + 1/2 mole.... The rates of formation for C284 ( ~ ) and CO& (& ) as a function of temperature. Flow rates of gases: C~H8, 8. 4 ml/min; N~Q, 48. 8 ml/min. 15 g 12 0 0) c g 0 E ~6 300 325 350 375 400 425 450 T ('~) TABLE 1 Reactions of C 2H6 with N20 at Different...

Yang, Tsong-Jen

1979-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. This six-month technical report summarizes the progress for each of the proposed tasks, discusses project concerns, and outlines near-term goals. Ophir has completed a data survey of two major natural gas pipeline companies on the design requirements for an airborne, optical remote sensor. The results of this survey are disclosed in this report. A substantial amount of time was spent on modeling the expected optical signal at the receiver at different absorption wavelengths, and determining the impact of noise sources such as solar background, signal shot noise, and electronic noise on methane and ethane gas detection. Based upon the signal to noise modeling and industry input, Ophir finalized the design requirements for the airborne sensor, and released the critical sensor light source design requirements to qualified vendors. Responses from the vendors indicated that the light source was not commercially available, and will require a research and development effort to produce. Three vendors have responded positively with proposed design solutions. Ophir has decided to conduct short path optical laboratory experiments to verify the existence of methane and absorption at the specified wavelength, prior to proceeding with the light source selection. Techniques to eliminate common mode noise were also evaluated during the laboratory tests. Finally, Ophir has included a summary of the potential concerns for project success and has established future goals.

Jerry Myers

2003-05-13T23:59:59.000Z

282

Relationship of Viscosity, Surface Tensions, and Coefficient of Friction of Lubricating Oils  

E-Print Network [OSTI]

oils, is easily accounted for. Ilineral lubricating oils are not affected by high pressure steam or alkalies and these character- istics enable them to be used where other lubricants would be quite unfitted for the work. Animal Oils:-- These oils...RELATI01ISHII OF VISCOSITY, SUHFACE TEUSIOUS, A3D COEFFICIENT O? FlilCTIOB 0? LUBRICATING OILS. A Thesis Submitted to the Faculty of the Graduate School, University of Kansas, Lawrence. For The Degree of Master of Science ilechanioal...

Carson, Earl

1914-01-01T23:59:59.000Z

283

Chemical and thermal stability of refrigerant-lubricant mixtures with metals  

SciTech Connect (OSTI)

This report presents the results of a sealed tube stability study on twenty-one refrigerant-lubricant mixtures selected from the following groupings: HFCs R-32, R-125, R-134, R-134a, R-143a, and R-152a with one or more lubricants selected from among three pentaerythritol esters and three polyalkylene glycols. All lubricants were carefully predried to 25 ppm or less moisture content. HCFCs R-22, R-123, R-124, and R-142b, as well as CFC R-11, with one or more lubricants selected from among two mineral oils and one alkylbenzene fluid. Bach test mixture was aged at three temperature levels.

Huttenlocher, D.F.

1992-10-09T23:59:59.000Z

284

Chemical and thermal stability of refrigerant-lubricant mixtures with metals. Final report  

SciTech Connect (OSTI)

This report presents the results of a sealed tube stability study on twenty-one refrigerant-lubricant mixtures selected from the following groupings: HFCs R-32, R-125, R-134, R-134a, R-143a, and R-152a with one or more lubricants selected from among three pentaerythritol esters and three polyalkylene glycols. All lubricants were carefully predried to 25 ppm or less moisture content. HCFCs R-22, R-123, R-124, and R-142b, as well as CFC R-11, with one or more lubricants selected from among two mineral oils and one alkylbenzene fluid. Bach test mixture was aged at three temperature levels.

Huttenlocher, D.F.

1992-10-09T23:59:59.000Z

285

E-Print Network 3.0 - actively lubricated bearings Sample Search...  

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

Summary: to operation of bearings and splines include wear, fatigue, lubrication, and heat dissipation. Mechanical... shafts that are lined along the length of the engine. Both...

286

E-Print Network 3.0 - alkane lubrication films Sample Search...  

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

the oil aerosol... experiments considered emissions from a diesel engine, wood stove, and flash-vaporized lubricating oil... operating at low load (25%) on fuel purchased from a...

287

Two- and Three-Dimensional Microstructural Modeling of Asphalt Particulate Composite Materials using a Unified Viscoelastic-Viscoplastic-Viscodamage Constitutive Model  

E-Print Network [OSTI]

The main objective of this study is to develop and validate a framework for microstructural modeling of asphalt composite materials using a coupled thermo-viscoelastic, thermo-viscoplastic, and thermo-viscodamage constitutive model. In addition...

You, Taesun

2013-08-13T23:59:59.000Z

288

Lubrication for high and extreme pressures. January 1974-September 1989 (Citations from Fluidex data base). Report for January 1974-September 1989  

SciTech Connect (OSTI)

This bibliography contains citations concerning extreme-pressure lubricants. Coverage includes methods and results of testing of extreme-pressure (EP) lubricants, measurement of properties and changes to these properties when EP lubricants are subjected to extreme pressures, additives and effects of additives to EP lubricants, and applications of EP lubricants. Some abstracts pertain to the sealing of lubricants and hydraulic fluids under extreme pressure conditions. Other citations refer to analysis of machine parts as part of the testing of EP lubricants, and effects of lubricant failure. (This updated bibliography contains 347 citations, 45 of which are new entries to the previous edition.)

Not Available

1989-10-01T23:59:59.000Z

289

The importance of the glass transition temperature in relation to the low-temperature fracture resistance of asphalt and sulphlex pavement binders  

E-Print Network [OSTI]

THE IMPORTANCE DF THE GLASS TRANSITION TEMPERATURE IN RELATION TO THE LOW-TEMPERATURE FRACTURE RESISTANCE OF ASPHALT AND SULPHLEX PAVEMENT BINDERS A Thesis by DOUGLAS LEE SMITH Submitted to the Graduate College of Texas ASM University... of the Glass Transition Temperature in Relation to the Low-Temperature Fracture Resistance of Asphalt and Sulphlex Pavement Binders. (May 1985) Douglas Lee Smith, B. S. , Texas A&M University Chairman of Advisory Committee; Dr. Donald Saylak A quartz tube...

Smith, Douglas Lee

1985-01-01T23:59:59.000Z

290

Use of shredded tires in the subbase layer of asphalt pavements  

SciTech Connect (OSTI)

Research was conducted on the use of shredded scrap tires for use in the subbase layer of asphalt pavements. Mixtures of shredded scrap tires with virgin soil provide a means of recycling unwanted tires and conserving a finite supply of virgin soil. The mechanistic procedure for the design of pavement systems requires resilient modulus values. Plastic and elastic strains were measured using external LVDT`s and internal proximity sensors. Resilient modulus measurements were conducted on cohesionless soils mixed with various amounts of shredded tire chips. The performance f the shredded tire mixture is compared to that of the naturally occurring virgin soil used in subbase applications in New Jersey. A number of experimental issues are discussed such as: method of compaction, optimum ratio of shredded tire chips to soil, optimum size and gradation of shredded tire chips, and strength testing using California Bearing Ratio.

Papp, W.J. Jr.; Maher, M.H. [Rutgers Univ., Piscataway, NJ (United States). Dept. of Civil and Environmental Engineering; Baker, R.F. [New Jersey Dept. of Transportation, Trenton, NJ (United States)

1997-12-31T23:59:59.000Z

291

Lubricant oil consumption effects on diesel exhaust ash emissions using a sulfur dioxide trace technique and thermogravimetry  

E-Print Network [OSTI]

A detailed experimental study was conducted targeting lubricant consumption effects on ,diesel exhaust ash levels using a model year 2002 5.9L diesel engine, high and low Sulfur commercial lubricants, and clean diesel ...

Plumley, Michael J

2005-01-01T23:59:59.000Z

292

Aging of HDPE Pipes Exposed to Diesel Lubricant Amelia H. U. Torres1  

E-Print Network [OSTI]

Aging of HDPE Pipes Exposed to Diesel Lubricant Amelia H. U. Torres1 , José R. M. d'Almeida1 behavior of high-density polyethylene pipes by exposure to a diesel lubricant were investigated the analysis performed, physical aging was identified as the aging process occurring when the HDPE pipes came

Paris-Sud XI, Université de

293

Department of Industrial Engineering Spring 2013 Lubricant Performance in the Machining of Austempered Ductile Iron  

E-Print Network [OSTI]

analysis for tool wear and surface finish using Excel charts, and Minitab Box-Cox Transformations were done for machining ADI where minimum flank wear for tool inserts is the primary concern The type of lubrication does average values of surface roughness than the dry run, but the differences between the three lubricants

Demirel, Melik C.

294

Solubility, viscosity and density of refrigerant/lubricant mixtures  

SciTech Connect (OSTI)

This report presents results on low refrigerant concentration (70, 80, 90, and 100 weight percent lubricant) mixtures of the following fluids: CFC-12/ISO 32 naphthenic mineral oil; HCFC-22/ISO 32 naphthenic mineral oil; and HFC-134a/ISO 32 pentaerythritol ester mixed acid. These data have been reduced to engineering form and are presented in the form of a Daniel Chart. Scatter diagrams are given for the first fluid listed above, with the intent of illustrating the quality of data as well as providing the rationale for selecting the particular functional forms chosen to represent the experimental data. Equations are given along with statistical measures of goodness of fit.

Henderson, D.R.

1993-01-01T23:59:59.000Z

295

Tribology Letters Vol. 10, No. 3, 2001 179 Activation of the SiC surface for vapor phase lubrication  

E-Print Network [OSTI]

above 500 C [2,3,11,12]. Since liquid lubricants cannot withstand such extreme conditions, a number deposition 1. Introduction The lubrication of ceramic surfaces working at extremely high temperatures has lubrication by Fe chemical vapor deposition from Fe(CO)5 Daxing Ren, Dougyong Sung and Andrew J. Gellman

Gellman, Andrew J.

296

Recycled brake linings as partial aggregate substitute in asphalt paving. Construction and final report. Report for July 1992-August 1996  

SciTech Connect (OSTI)

The purpose of this project was to evaluate the performance of asphalt containing various percentages of brake lining as an aggregate, and compare its performance to that of normal asphalt containing natural aggregate. This project is an effort to explore alternate ways to use waste product. Four test section of FB-2 Modified mix containing brake lining materials were placed in July 1992 along with one control section on SR 3022 in Mercer county. To date all sections are performing satisfactory, and Brake linings should be recommended as a viable partial replacement of aggregate in bituminous materials. This study only considered the performance of only off-spec brake linings, therefore, any performance data or enviromental effects of placement of used brake material should be addressed.

Miller, P.A.; Sukley, R.

1996-09-01T23:59:59.000Z

297

Electrochemical assessment and service-life prediction of mechanically stabilized earth walls backfilled with crushed concrete and recycled asphalt pavement  

E-Print Network [OSTI]

Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2006 Major Subject: Civil Engineering ELECTROCHEMICAL ASSESSMENT AND SERVICE-LIFE PREDICTION... OF MECHANICALLY STABILIZED EARTH WALLS BACKFILLED WITH CRUSHED CONCRETE AND RECYCLED ASPHALT PAVEMENT A Thesis by MICHAEL WATTS ESFELLER, JR. Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Esfeller, Michael Watts, Jr.

2009-06-02T23:59:59.000Z

298

Cryogenic friction behavior of PTFE based solid lubricant composites N.L. McCook, D.L. Burris, P.L. Dickrell and W.G. Sawyer*  

E-Print Network [OSTI]

of fluid lubricants is precluded. Such conditions are typically considered extreme, often existing lubrication 1. Introduction Solid lubricants are frequently used under opera- tional conditions where the useCryogenic friction behavior of PTFE based solid lubricant composites N.L. McCook, D.L. Burris, P

Sawyer, Wallace

299

IEEE TRANSACTIONS ON MAGNETICS, VOL. 47, NO. 7, JULY 2011 1849 Enhanced Photo-Thermal Stability of Modified PFPE Lubricants Under  

E-Print Network [OSTI]

-type lubricants is of importance. Perfluoropolyethers (PFPEs) are widely used in hard disk drives due

Wang, Deli

300

Hysteresis and Lubrication in Shear Thickening of Cornstarch Suspensions  

E-Print Network [OSTI]

Aqueous and brine suspensions of corn starch show striking discontinuous shear thickening. We have found that a suspension shear-thickened throughout may remain in the jammed thickened state as the strain rate is reduced, but an unjamming front may propagate from any unjammed regions. Transient shear thickening is observed at strain rates below the thickening threshold, and above it the stress fluctuates. The jammed shear-thickened state may persist to low strain rates, with stresses resembling sliding friction and effective viscosity inversely proportional to the strain rate. At the thickening threshold fluid pressure depins the suspension's contact lines on solid boundaries so that it slides, shears, dilates and jams. In oil suspensions lubrication and complete wetting of confining surfaces eliminate contact line forces and prevent jamming and shear thickening, as does addition of immiscible liquid surfactant to brine suspensions. Starch suspensions in glycerin-water solutions, viscous but incompletely wetting, have intermediate properties.

Clarence E. Chu; Joel A. Groman; Hannah L. Sieber; James G. Miller; Ruth J. Okamoto; Jonathan I. Katz

2014-05-28T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Renewable Fuels and Lubricants (ReFUEL) Laboratory (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet describes the Renewable Fuels and Lubricants (ReFUEL) Laboratory at the U.S. Department of Energy National Renewable Energy Laboratory (NREL) is a state-of-the-art research and testing facility for advanced fuels and vehicles. Research and development aims to improve vehicle efficiency and overcome barriers to the increased use of renewable diesel and other nonpetroleum-based fuels, such as biodiesel and synthetic diesel derived from biomass. The ReFUEL Laboratory features a chassis dynamometer for vehicle performance and emissions research, two engine dynamometer test cells for advanced fuels research, and precise emissions analysis equipment. As a complement to these capabilities, detailed studies of fuel properties, with a focus on ignition quality, are performed at NREL's Fuel Chemistry Laboratory.

Not Available

2012-03-01T23:59:59.000Z

302

Solubility, viscosity and density of refrigerant/lubricant mixtures  

SciTech Connect (OSTI)

This report presents results for low refrigerant concentration (70, 80, 90 and 100 weight percent lubricant) mixtures of the following fluids: CFC-12/ISO 32 naphthenic mineral oil, HCFC-22/ISO 32 naphthenic mineral oil, CFC-12/ISO 100 naphthenic mineral oil, HFC-134a/ISO 22 pentaerythritol ester mixed acid, HFC-134a/ISO 32 pentaerythritol ester mixed acid [number sign]1, HFC-134a/ISO 68 pentaerythritol ester mixed acid, HFC-134a/ISO 100 pentaerythritol ester mixed acid, HFC-134a/ISO 32 pentaerythritol ester mixed acid [number sign]2, HCFC-123/ISO 32 naphthenic mineral oil, HCFC-123/ISO 100 naphthenic mineral oil, HCFC-123/150 SUS alkylbenzene, HCFC-123/300 SUS alkylbenzene. These data have been reduced to engineering form and are presented in the form of a Daniel Chart. Equations are given along with statistical measures of goodness of fit.

Henderson, D.R.

1993-04-01T23:59:59.000Z

303

Value-added utilisation of recycled concrete in hot-mix asphalt  

SciTech Connect (OSTI)

The feasibility of partial substitution of granite aggregate in hot-mix asphalt (HMA) with waste concrete aggregate was investigated. Three hybrid HMA mixes incorporating substitutions of granite fillers/fines with 6%, 45% untreated, and 45% heat-treated concrete were evaluated by the Marshall mix design method; the optimum binder contents were found to be 5.3%, 6.5% and 7.0% of grade Pen 60/70 bitumen, respectively. All three hybrid mixes satisfied the Marshall criteria of the Singapore Land Transport Authority (LTA) W3B wearing course specification. The hybrid mix with 6% concrete fillers gave comparable resilient modulus and creep resistance as the conventional W3B mix, while hybrid mixes with higher concrete substitutions achieved better performance. X-ray diffraction (XRD) showed the distinct presence of free lime in the heat-treated concrete, while the scanning electron microscope (SEM) provided an in-depth perspective of the concrete grains in the HMA matrix. The results suggest feasible use of waste concrete as partial aggregate substitution in HMA.

Wong, Yiik Diew [School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore); Sun, Darren Delai [School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)]. E-mail: ddsun@ntu.edu.sg; Lai, Dickson [School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)

2007-07-01T23:59:59.000Z

304

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

E-Print Network [OSTI]

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

Takata, Rosalind (Rosalind Kazuko), 1978-

2006-01-01T23:59:59.000Z

305

E-Print Network 3.0 - applying controllable lubrication Sample...  

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

-align and mount to the hydrophilic trench binding sites with electric connections by heat curable lubricant oil... and well-controlled bonding of bulk PZTs for micro pumps with...

306

A tribological study of the interaction between surface micro texturing and viscoelastic lubricants  

E-Print Network [OSTI]

An experimental study is performed on micro textured surfaces using both elastic and Newtonian fluids in order to understand the effect of surface texturing and fluid rheology on sliding friction under lubricated conditions. ...

Hupp, Sara J. (Sara Jean), 1979-

2004-01-01T23:59:59.000Z

307

Effects of Y_(2)O_(3) and ?-ZrP Additives on Lubrication of Grease  

E-Print Network [OSTI]

Development of novel additives in lubricants is a promising approach for high performance and energy saving devices. Those include automotive, marine, and wind turbines. In a wind turbine, the unplanned break-down rate of bearings caused by improper...

Kim, Chung Jwa

2014-07-28T23:59:59.000Z

308

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

SciTech Connect (OSTI)

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

DellaCorte, C.; Wood, J.C.

1994-10-01T23:59:59.000Z

309

Application of the Adaptive Discontinuous Galerkin Method to Problems in Elastohydrodynamic Lubrication  

E-Print Network [OSTI]

for example. However, sometimes friction is not welcome: it can cause power loss in engines or reduce is such an effective way to reduce power loss and prevent wear, and since the behaviour of the lubricant film between

Utah, University of

310

E-Print Network 3.0 - advanced lubrication systems Sample Search...  

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

Materials Science 36 1 Copyright 2010 by ASME Proceedings of the 3rd Joint US-European Fluids Engineering Summer Meeting and Summary: to a partial lubrication failure. Indeed,...

311

Evaluation of replacement thread lubricants for red lead and graphite in mineral oil  

SciTech Connect (OSTI)

Eight commercially available thread lubricants were evaluated to determine the best replacement for Red Lead and Graphite in Mineral Oil (RLGMO). The evaluation included coefficient of friction testing, high temperature anti-seizing testing, room temperature anti-galling testing, chemical analysis for detrimental impurities, corrosion testing, off-gas testing, and a review of health and environmental factors. The coefficient of friction testing covered a wide variety of factors including stud, nut, and washer materials, sizes, manufacturing methods, surface coatings, surface finishes, applied loads, run-in cycles, and relubrication. Only one lubricant, Dow Corning Molykote P37, met all the criteria established for a replacement lubricant. It has a coefficient of friction range similar to RLGMO. Therefore, it can be substituted directly for RLGMO without changing the currently specified fastener torque values for the sizes, materials and conditions evaluated. Other lubricants did not perform as well as Molykote P37 in one or more test or evaluation categories.

Jungling, T.L.; Rauth, D.R.; Goldberg, D.

1998-04-30T23:59:59.000Z

312

Nano-elastohydrodynamics: Structure, dynamics, and flow in nonuniform lubricated junctions  

SciTech Connect (OSTI)

Structure, flow, and response characteristics of molecularly thin films of hexadecane, sheared by topographically nonuniform solid gold surfaces sliding at a relative velocity of 10 meters per second, were investigated with molecular dynamics simulations. The simulations reveal three characteristics: spatial and temporal variations in the density and pressure of the lubricant in the region confined by the approaching asperities, accompanied by asperity-induced molecular layering transitions that are reflected in oscillatory patterns in the friction force; asperity deformations and microstructural transformations mediated by the lubricant; and an onset of cavitated zones in the lubricant after the asperity-asperity collision process. The simulations extend micrometer-scale elastohydrodynamic investigations into the nanometer-scale regime and provide molecular-scale insights into the fundamental mechanisms of ultrathin film lubrication phenomena under extreme conditions. 20 refs., 3 figs.

Gao, J.; Luedtke, W.D.; Landman, U. [Georgia Institute of Technology, Atlanta, GA (United States)

1995-10-27T23:59:59.000Z

313

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

E-Print Network [OSTI]

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

Chen, Haijie

2011-01-01T23:59:59.000Z

314

Design, fabrication and testing of a bearing test rig and preliminary studies on oil mist lubrication  

E-Print Network [OSTI]

DESIGN, FABRICATION AND TESTING OF A BEARING TEST RIG AND PRELIMINARY STUDIES ON OIL MIST LUBRICATION A Thesis by ABDUS SHAMIM 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 August 1990 Major Subject: Mechanical Engineering DESIGN, FABRICATION AND TESTING OF A BEARING TEST RIG AND PRELIMINARY STUDIES ON OIL MIST LUBRICATION A Thesis by ABDUS SHAMIM Approved as to style and content by: C...

Shamim, Abdus

1990-01-01T23:59:59.000Z

315

Thermal reactivity of mixtures of VDDT lubricant and simulated Hanford Tank 241-SY-101 waste  

SciTech Connect (OSTI)

To predict whether the Polywater G lubricant residue remaining in the velocity, density, and temperature tree (VDTT) and the waste in Tank 241-SY-101 (101SY) will be chemically compatible with wastes in 101SY when two VDTTs are removed from 101SY, the Pacific Northwest National Laboratory measured the thermal reaction sensitivity of the lubricant residue. This residue is a simulated 101SY waste containing the organic surrogate trisodium hydroxyethyl-ethylenediaminetriacetate (Na{sub 3}HEDTA) and two simulated potential waste and lubricant residue mixtures containing 10 and 90 percent lubricant residue. These studies using accelerating rate calorimetry found that the residue did not react at a rate exceeding 0.1 J/min/g mixture up to 190 degrees C with simulated 101SY waste containing Na{sub 3}HEDTA as the organic surrogate. Also, the dried lubricant residue did not decompose exothermically at a rate exceeding 0.1 J/min/g. Using guidelines used by the chemical industry, these results indicate that the lubricant residue should not react as a significant rate with the waste in 101SY when added to the waste at 60 degrees C or when the mixture cools to the waste`s temperature of 48 degrees C.

Scheele, R.D.; Panisko, F.E.; Sell, R.L.

1996-09-01T23:59:59.000Z

316

Laser-induced short time scale thermal chemistry of perfluoropolyether lubricant films  

SciTech Connect (OSTI)

The authors investigate the effect of heating a perfluoropolyether lubricant film in a localized area for relatively short time periods using laser irradiation versus conventional oven heating. These experiments help provide understanding on how flash temperatures generated at frictional contacts affect the thermal chemistry of lubricant films. In these experiments, a CO{sub 2} laser heats a 50 {micro}m wide area of a silicon wafer for time periods ranging from 0.1 to 60 s. The surface temperature within the heated area (up to 280 C in these experiments) is monitored with a second laser by measuring the change in reflectivity near the center of the heated area. A major difference observed for laser heating compared to oven heating is that the effective evaporation rate is orders of magnitude higher for laser heating. If the lubricant film is heated for sufficiently long enough time at high temperatures, the authors are able to observe thermal bonding of the lubricant via its alcohol end groups to the silicon oxide surface, followed by thermal decomposition of the lubricant molecules. After laser heating, the authors are able to observe the diffusion of lubricant back into the localized heated area using a combination of optical microscopy and imaging ellipsometry.

Heller, J.; Mate, C.J.; Poon, C.C.; Tam, A.C.

1999-11-09T23:59:59.000Z

317

Synergistic effect of mixing dimethyl ether with methane, ethane, propane, and ethylene fuels on polycyclic aromatic hydrocarbon and soot formation  

SciTech Connect (OSTI)

Characteristics of polycyclic aromatic hydrocarbon (PAH) and soot formation in counterflow diffusion flames of methane, ethane, propane, and ethylene fuels mixed with dimethyl ether (DME) have been investigated. Planar laser-induced incandescence and fluorescence techniques were employed to measure relative soot volume fractions and PAH concentrations, respectively. Results showed that even though DME is known to be a clean fuel in terms of soot formation, DME mixture with ethylene fuel increases PAH and soot formation significantly as compared to the pure ethylene case, while the mixture of DME with methane, ethane, and propane decreases PAH and soot formation. Numerical calculations adopting a detailed kinetics showed that DME can be decomposed to produce a relatively large number of methyl radicals in the low-temperature region where PAH forms and grows; thus the mixture of DME with ethylene increases CH{sub 3} radicals significantly in the PAH formation region. Considering that the increase in the concentration of O radicals is minimal in the PAH formation region with DME mixture, the enhancement of PAH and soot formation in the mixture flames of DME and ethylene can be explained based on the role of methyl radicals in PAH and soot formation. Methyl radicals can increase the concentration of propargyls, which could enhance incipient benzene ring formation through the propargyl recombination reaction and subsequent PAH growth. Thus, the result substantiates the importance of methyl radicals in PAH and soot formation, especially in the PAH formation region of diffusion flames. (author)

Yoon, S.S. [Corporate Research and Development Division, Hyundai-Kia Motors, Gyeonggi-do 445-706 (Korea); Anh, D.H. [Korea Electric Power Research Institute, Daejeon 305-380 (Korea); Chung, S.H. [School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742 (Korea)

2008-08-15T23:59:59.000Z

318

A study of substitution solvents in asphalt fume extraction and the effects of heating duration and temperature  

E-Print Network [OSTI]

(denoted Dl). Duration two ( D2) ran from time 60 minutes to time 90 minutes, Dl and DZ were separated by a 30 minute period in wh i ch no sampling occurred. The total time of heati ng at this temperature range was 90 minutes, which was near the limit... of the filter to hold it in position, and the cassette cap was placed on top of this. 3oth ends were then plugged. (Figure 2) After a warming period of approximately 30 minutes, the temperature of the liquid asphalt was raised to 250 C. iihen it reached...

Curry, Noel Thomas

1981-01-01T23:59:59.000Z

319

Friction of different monolayer lubricants in MEMs interfaces.  

SciTech Connect (OSTI)

This report details results from our last year of work (FY2005) on friction in MEMS as funded by the Campaign 6 program for the Microscale Friction project. We have applied different monolayers to a sensitive MEMS friction tester called the nanotractor. The nanotractor is also a useful actuator that can travel {+-}100 {micro}m in 40 nm steps, and is being considered for several MEMS applications. With this tester, we can find static and dynamic coefficients of friction. We can also quantify deviations from Amontons' and Coulomb's friction laws. Because of the huge surface-to-volume ratio at the microscale, surface properties such as adhesion and friction can dominate device performance, and therefore such deviations are important to quantify and understand. We find that static and dynamic friction depend on the monolayer lubricant applied. The friction data can be modeled with a non-zero adhesion force, which represents a deviation from Amontons' Law. Further, we show preliminary data indicating that the adhesion force depends not only on the monolayer, but also on the normal load applied. Finally, we also observe slip deflections before the transition from static to dynamic friction, and find that they depend on the monolayer.

Carpick, Robert W. (University of Wisconsin, Madison, WI); Street, Mark D. (University of Wisconsin, Madison, WI); Ashurst, William Robert (Auburn University, Auburn, AL); Corwin, Alex David

2006-01-01T23:59:59.000Z

320

Process for producing a corrosion-resistant solid lubricant coating  

SciTech Connect (OSTI)

A corrosion-resistant surface formed of a sulfide-forming metal, in particular nickel, is first subjected to an electric plasma in an atmosphere containing hydrogen sulfide to form an adherent sulfide on said surface. The sulfided surface is then exposed to simultaneous cathodic sputtering of at least one solid lubricant which is a chalcogen compound of layer structure, in particular MoS/sub 2/, and at least one hydrophobic solid polymer, in particular PTFE. The coating thus formed is a composite coating in which the particles of the chalcogen compound are coated by the polymer. When the surface of the part to be coated does not consist of a corrosion-resistant sulfide-forming metal, a layer of such a metal is first deposited by cathodic sputtering. The composite coating withstands a wet oxidizing atmosphere, contrary to a coating of MoS/sub 2/ alone, and the method is applicable to any mechanical part intended to rub on other surfaces, such as a watch balance wheel staff and ball or roller bearings.

Niederhaeuser, P.; Hintermann, H.E.; Maillat, M.

1983-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

METHANE AND METHANOTROPHY IN TEXAS AQUIFERS ETHAN L. GROSSMAN,1 CHUANLUN ZHANG,1* JAMES W. AMMERMAN,2 AND MARTHA J. D.  

E-Print Network [OSTI]

1 METHANE AND METHANOTROPHY IN TEXAS AQUIFERS ETHAN L. GROSSMAN,1 CHUANLUN ZHANG,1* JAMES W-occurring methane-oxidizing bacteria (methanotrophs) have been shown to degrade the halogenated hydrocarbons, especially for deep pristine aquifers. Many Texas groundwaters contain significant to abundant methane

Grossman, Ethan L.

322

Experimental and kinetic study of autoignition in methane/ethane/air and methane/propane/air mixtures under engine-relevant conditions  

SciTech Connect (OSTI)

The ignition delay of homogeneous methane/air mixtures enriched with small fractions of ethane/propane was measured using the reflected-shock technique at temperatures from 900 to 1400 K and pressures from 16 to 40 bar. The results show complex effects of ethane/propane on the ignition of methane, but a common trend observed with both hydrocarbons is an increased promotion effect for temperatures below 1100 K. A detailed kinetic mechanism was used to investigate the interaction between ethane/propane and the ignition chemistry of methane under the above conditions. It was found that at relatively low temperatures, the reactions between ethane/propane and methylperoxy (CH{sub 3}O{sub 2}) lead to an enhanced rate of formation of OH radicals in the initiation phase of the ignition. By systematically applying the quasi-steady-state assumptions to the intermediate species involved in the main reaction path identified, we have achieved an analytical description of the ignition process in the transitional temperature regime. The analytical solutions agree reasonably well with the detailed kinetic model and the experimental results for both ignition delay and concentrations of major intermediate species.

Huang, J.; Bushe, W.K. [Department of Mechanical Engineering, University of British Columbia, 6950 Applied Science Lane, Vancouver, British Columbia (Canada V6T 1Z4)

2006-01-01T23:59:59.000Z

323

Intramolecular Hydrogen Bonding in Disubstituted Ethanes. A Comparison of NH,,,O-and OH,,,O-Hydrogen Bonding through Conformational Analysis of 4-Amino-4-oxobutanoate  

E-Print Network [OSTI]

Intramolecular Hydrogen Bonding in Disubstituted Ethanes. A Comparison of NH,,,O- and OH,,,O- Hydrogen Bonding through Conformational Analysis of 4-Amino-4-oxobutanoate (succinamate) and Monohydrogen 1 of amide NH,,,O- and carboxyl OH,,,O- hydrogen bonds were investigated via conformational analysis

Goddard III, William A.

324

Asphaltenes and Asphalts, 2. Developments in Petroleum Science, 40 B edited by T.F. Yen and G.V. Chilingarian  

E-Print Network [OSTI]

Asphaltenes and Asphalts, 2. Developments in Petroleum Science, 40 B edited by T.F. Yen and G OF ASPHALTENES: A PREDICTIVE APPROACH BASED ON COMPUTER ASSISTED STRUCTURE ELUCIDATION AND ATOMISTIC SIMULATIONS, asphaltenes and resins [1­4]. Asphaltenes are operationally defined as the non-volatile and polar fraction

?agin, Tahir

325

Sweeney LUBRICATION OF STEAM, GAS AND WATER TURBINES IN POWER GENERATION- A CHEVRONTEXACO EXPERIENCE  

E-Print Network [OSTI]

On 9 October 2001 two US oil companies Chevron and Texaco merged. Their long-term joint venture operation, known as Caltex (formed in 1936 and operating in East and Southern Africa, Middle East, Asia and Australasia), was incorporated into the one global energy company. This global enterprise will be highly competitive across all energy sectors, as the new company brings together a wealth of talents, shared values and a strong commitment to developing vital energy resources around the globe. Worldwide, ChevronTexaco is the third largest publicly traded company in terms of oil and gas reserves, with some 11.8 billion barrels of oil and gas equivalent. It is the fourth largest producer, with daily production of 2.7 million barrels. The company also has 22 refineries and more than 21,000 branded service stations worldwide. This paper will review the fundamentals of lubrication as they apply to the components of turbines. It will then look at three turbine types, steam, gas and water, to address the different needs of lubricating oils and the appropriate specifications for each. The significance of oil testing both for product development and in-service oil monitoring will be reviewed, together with the supporting field experience of ChevronTexaco. The environmental emissions controls on turbines and any impact on the lubricants will be discussed. Finally, the trends in specifications for lubricating oils to address the modern turbines designs will be reviewed. Key Words: geothermal, lubrication, turbines, in-service testing 1.

Peter James Sweeney

326

Clean and cost-effective dry boundary lubricants for aluminum forming.  

SciTech Connect (OSTI)

Preliminary research in our laboratory has demonstrated that boric acid is an effective lubricant with an unusual capacity to reduce sliding fiction (providing friction coefficients as low as 0.02) and wear of metallic and ceramic materials. More recent studies have revealed that water or methanol solutions of boric acid can be used to prepare strongly bonded layers of boric acid on aluminum surfaces. It appears that boric acid molecules have a strong tendency to bond chemically to the naturally oxidized surfaces of aluminum and its alloys and to make these surfaces very slippery. Recent metal formability tests indicated that the boric acid films formed on aluminum surfaces by spraying or dipping worked quite well; improving draw scale performance by 58 to 75%. These findings have increased the prospect that boric acid can be formulated and optimized as an effective boundary lubricant and used to solve the friction, galling, and severe wear problems currently encountered in cold-forming of aluminum products. Accordingly, the major goal of this paper is to demonstrate the usefulness and lubrication capacity of thin boric acid films formed on aluminum surfaces by simple dipping or spraying processes and to describe the lubrication mechanisms under typical metal forming conditions. We will also examine the nature of chemical bonding between boric acid and aluminum surfaces and develop new ways to optimize its performance as an effective boundary lubricant.

Erdemir, A.; Fenske, G. R.

1997-12-05T23:59:59.000Z

327

MIL-L-87177 and CLT:X-10 Lubricants Improve Electrical Connector Fretting Corrosion Behavior  

SciTech Connect (OSTI)

We have conducted a fretting research project using MIL-L-87177 and CLT: X-10 lubricants on Nano-miniature connectors. When they were fretted without lubricant, individual connectors first exceeded our 0.5 ohm failure criteria from 2,341 to 45,238 fretting cycles. With additional fretting, their contact resistance increased to more than 100,000 ohms. Unmodified MIL-L-87177 lubricant delayed the onset of first failure to between 430,000 and over 20,000,000 fretting cycles. MIL-L-87177 modified by addition of Teflon powder delayed first failure to beyond 5 million fretting cycles. Best results were obtained when Teflon was used and also when both the straight and modified lubricants were poured into and then out of the connector. CLT: X-10 lubricant delayed the onset of first failure to beyond 55 million cycles in one test where a failure was actually observed and to beyond 20 million cycles in another that was terminated without failure. CLT: X-10 recovered an unlubricated connector driven deeply into failure, with six failed pins recovering immediately and four more recovering during an additional 420 thousand fretting cycles. MIL-L-87177 was not able to recover a connector under similar conditions.

AUKLAND,NEIL R.; HANLON,JAMES T.

1999-10-12T23:59:59.000Z

328

XPS analysis of 440C steel surfaces lubricated with perfluoropolyethers under sliding conditions in high vacuum  

SciTech Connect (OSTI)

This work presents the results of the X-Ray Photoelectron Spectroscopy (XPS) analysis of AISI 440C ball surfaces lubricated with perfluoropolyether (PFPE) oils after friction experiments under sliding conditions at high load in air and vacuum environments. The PFPE lubricants tested were Demnum S100, Fomblin Z-25, and Krytox 143AB. It was found that all the PFPE lubricants were degraded by sliding contact causing the formation of inorganic fluorides on the metallic surfaces and a layer of organic decomposition products. KRYTOX 143AB was the least reactive of the three lubricants tested. It was also found that metal fluoride formed at off-scar areas. This suggests the formation of reactive species, such as COF2 or R[sub f]COF, during sliding experiments, which can diffuse through the lubricant film and react with the metallic surfaces away from the contact region. Comparison of reference specimens before sliding with those that had undergone the sliding tests showed that the amount of non-degraded PFPE remaining on the surface of the balls after the sliding experiments was greater than that of the balls without sliding.

Herrera-Fierro, P.; Masuko, M.; Jones, W.R. Jr.; Pepper, S.V.

1994-04-01T23:59:59.000Z

329

Formation damage studies of lubricants used with drill-in fluids systems on horizontal open-hole wells  

E-Print Network [OSTI]

Tests were conducted to evaluate the effect of lubricants in formation damage. Two types of lubricants were tested along with two types of drill-in fluids. The DIF's tested included a sized-calcium carbonate (SCC) and a sized-salt (SS). Also a set...

Gutierrez, Fernando A

2000-01-01T23:59:59.000Z

330

In any gearbox, lubrication is just as important as the hardware. In wind turbine gearboxes, it is imperative that  

E-Print Network [OSTI]

. Wind turbines are also subject to conditions that range from extremely low temperatures to contaminantsIn any gearbox, lubrication is just as important as the hardware. In wind turbine gearboxes, it is imperative that the lubricant not only protects gearbox components, but also maintains a significant design

Chapman, Clark R.

331

Ratchel U., Investigation on the use of palm olein as lubrication oil  

E-Print Network [OSTI]

The research work is on the possibility of producing lubricating oil from vegetable oil with palm olein as a case study. The sample analysed was obtained from Vandeikya Local Government Area of Benue State. Some of the physical and chemical properties such as viscosity, flash/fire point, pour point and specific gravity were analysed. This sample was bleached to remove the red colour (carotene) and gummy materials. The bleached sample was tested to determine the above mentioned properties. Comparison of the crude palm olein and the bleached sample with the conventional lubricants obtained from Elf Plc, Kaduna and Unipetrol Plc, Kaduna was made. Finally, it was discovered that the crude palm olein and the bleached sample exhibit a good base as a lubricant.

A. B. Hassan; M. S. Abolarin; A. Nasir; U. Ratchel

332

Identification of tribological research and development needs for lubrication of advanced heat engines  

SciTech Connect (OSTI)

The continuous evolution of higher power density propulsion systems has always fueled the search for materials and lubricants with improved thermal and/or durability characteristics. Tribology of the upper cylinder region is the major technology roadblock in the path of the adiabatic diesel engine which has an energy reduction potential that exceeds that of all other engine development types. This tribology assessment resulted in the following major conclusions: a low friction and a low wear seal between the ring belt and cylinder bore are the most critical tribology functions in the diesel combustion chamber; development of solid lubrication systems will not satisfy the simultaneous low friction and low wear requirements in the upper cylinder area; development of separate upper cylinder liquid lubrication systems offers the most attractive design alternative for meeting the operational goals of future ''minimum cooled'' diesel engines.

Fehrenbacher, L.L.; Levinson, T.M.

1985-09-01T23:59:59.000Z

333

Miscibility, solubility, and viscosity measurements for R-236EA with potential lubricants. Final report, October 1992-March 1995  

SciTech Connect (OSTI)

The report gives results of miscibility, solubility, and viscosity measurements of refrigerant R-236ea with three potential lubricants. The lubricants were a mineral oil, alkylbenzene, and polyol ester, each with a nominal viscosity of 68 cSt. The miscibility tests were performed in a test facility consisting of a series of miniature test cells in a constant-temperature bath. Critical solution temperatures obtained from the miscibility data are presented for each refrigerant/lubricant combination. In addition to miscibility data, both solubility and viscosity data were obtained for R-236ea and the most promising lubricant. For comparison purposes, data were also taken for the existing U.S. Navy shipboard chiller refrigerant and lubricant concentration, namely 4-114 and a naphthenic oil.

Zoz, S.C.; Pate, M.B.

1996-05-01T23:59:59.000Z

334

Improved surface adhesion and coverage of perfluoropolyether lubricants following far-UV irradiation  

SciTech Connect (OSTI)

Far-UV treatment of a surface with a thin film of a perfluoropolyether improves adhesion and lowers surface free energy substantially compared to the unirradiated, lubricated surface. With 185-nm radiation, approximately one monolayer can be fixed to surfaces such as amorphous carbon, silica, and gold. These lubricated surfaces become extremely hydrophobic after UV treatment (advancing water contact angle increases about 65{degree} to {ge} 110{degree}) and are not removed by fluorinated solvents. In the absence of far-UV radiation, most perfluoropolyethers show poor adhesion to carbon and are removed easily by rinsing with fluorinated solvents.

Saperstein, D.D. (IBM General Products Div., San Jose, CA (USA)); Lin , L.J. (IBM Research Div., San Jose, CA (USA))

1990-09-01T23:59:59.000Z

335

In situ measurement of the bonded film thickness of Z-Tetraol lubricant on magnetic recording media  

SciTech Connect (OSTI)

Currently, the bonded film thickness of perfluoropolyether lubricant on top of magnetic recording media is measured by a two-step process. First, the media disk has to be rinsed thoroughly using a fluorocarbon solvent (for instance, Vetrel) to remove the mobile lubricant. Second, the thickness of the remaining lubricant on the media surface which is regarded as the bonded lubricant thickness is then measured either by Fourier transform infrared spectroscopy (FTIR) or electron spectroscopy for chemical analysis. As the total lubricant thickness approaches single molecular dimension ({approx}10 A), current methods face tremendous challenge on the accuracy and sensitivity of the measurement. We studied the spectral characteristics responding to the lubricant bonding with the carbon overcoat by the time-of-flight secondary ion mass spectra and proposed to use the peak area ratio (C{sub 3}H{sub 2}F/C{sub 3}H{sub 5}O and C{sub 4}H{sub 10}O/C{sub 3}H{sub 6}O{sub 2}) to characterize the bonded Z-Tetraol lubricant that produces a direct bonded lubricant thickness measurement without the need to remove the mobile lubricant with a solvent. After taking the background signal of disks prior to bonding by UV irradiation into account, this method becomes independent of the total lubricant thickness as well as shows good correlation linearity (R{sup 2{approx}}87%) with the current FTIR method for the ratio of C{sub 4}H{sub 10}O/C{sub 3}H{sub 6}O{sub 2}.

Zhu Lei; Li Feng [Material Science Laboratory, Recording Media Operation, Seagate Technology International, 16 Woodlands Loop, Singapore 738340 (Singapore)

2010-10-15T23:59:59.000Z

336

Utilize Cementitious High Carbon Fly Ash (CHCFA) to Stabilize Cold In-Place Recycled (CIR) Asphalt Pavement as Base Coarse  

SciTech Connect (OSTI)

The purpose of this study was to evaluate the performance of cementitious high carbon fly ash (CHCFA) stabilized recycled asphalt pavement as a base course material in a real world setting. Three test road cells were built at MnROAD facility in Minnesota. These cells have the same asphalt surface layers, subbases, and subgrades, but three different base courses: conventional crushed aggregates, untreated recycled pavement materials (RPM), and CHCFA stabilized RPM materials. During and after the construction of the three cells, laboratory and field tests were carried out to characterize the material properties. The test results were used in the mechanistic-empirical pavement design guide (MEPDG) to predict the pavement performance. Based on the performance prediction, the life cycle analyses of cost, energy consumption, and greenhouse gasses were performed. The leaching impacts of these three types of base materials were compared. The laboratory and field tests showed that fly ash stabilized RPM had higher modulus than crushed aggregate and RPM did. Based on the MEPDG performance prediction, the service life of the Cell 79 containing fly ash stabilized RPM, is 23.5 years, which is about twice the service life (11 years) of the Cell 77 with RPM base, and about three times the service life (7.5 years) of the Cell 78 with crushed aggregate base. The life cycle analysis indicated that the usage of the fly ash stabilized RPM as the base of the flexible pavement can significantly reduce the life cycle cost, the energy consumption, the greenhouse gases emission. Concentrations of many trace elements, particularly those with relatively low water quality standards, diminish over time as water flows through the pavement profile. For many elements, concentrations below US water drinking water quality standards are attained at the bottom of the pavement profile within 2-4 pore volumes of flow.

Wen, Haifang; Li, Xiaojun; Edil, Tuncer; O'Donnell, Jonathan; Danda, Swapna

2011-02-05T23:59:59.000Z

337

BERTOZZI,A.L. Lubrication Approximations for Surface Tension Driven Interfaces: Some  

E-Print Network [OSTI]

BERTOZZI,A.L. Lubrication Approximations for Surface Tension Driven Interfaces: Some Open Problems approxi- mation of fluid interfaces driven by surface tension. A number of different physical examples are considered. Free surface flow in which surface tension plays a role in the dynamics of an interface

Ball, John M.

338

Engine having a high pressure hydraulic system and low pressure lubricating system  

DOE Patents [OSTI]

An engine includes a high pressure hydraulic system having a high pressure pump and at least one hydraulically-actuated device attached to an engine housing. A low pressure engine lubricating system is attached to the engine housing and includes a circulation conduit fluidly connected to an outlet from the high pressure pump.

Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

2000-01-01T23:59:59.000Z

339

Adhesion, Lubrication, and Wear on the Atomic Scale James B. Adams  

E-Print Network [OSTI]

, lubrication and wear) of tribology on the atomic Scale with a focus on our group's work on Aluminum. Adhesion are processes that affect many industries, including metal forming, aerospace, automotive, and microelectronics. Adhesion is critical to the success of many applications, from automotive tires (the infamous Firestone

Adams, James B

340

References and Notes 1. W. J. Bartz, Ed., Engines and Automotive Lubrication  

E-Print Network [OSTI]

References and Notes 1. W. J. Bartz, Ed., Engines and Automotive Lubrication (Marcel Dekker, New formulations. 13. The replacement of steel by aluminum is motivated by efforts to reduce vehicle weight to adequately protect aluminum surfaces, automobile manufacturers have had to resort to engines com- posed

Shapiro, Nikolai

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Influence of EGR (Exhaust Gas Recirculation) on Engine Components Durability & Lubricating Oil Condition  

E-Print Network [OSTI]

AbstractDiesel engines are extensively used in automotive systems due to their low fuel consumption and very low CO emissions. Despite of these advantages, diesel engines suffer from environmental and health drawbacks such as high levels of NOx and particulate matter. Exhaust Gas Recirculation ( EGR) is an effective technique which is being used widely to control the NOx emissions from diesel engines. However, the use of EGR leads to rise in soot emission and it causes the problems inside the engine like degradation of lubricating oil, enhanced engine component wear etc. Therefore, it requires a study of influence of EGR on engine components and lubricating oil. This can be achieved only with different experimental investigation. In the present work, Engine test and Tribology test with lubricants ( Without EGR and With EGR) have been carried out to evaluate the effect of EGR on tribo- characteristics of engine components and lubricating oil condition. Influencing parameters like load, speed, temperature were selected as per the engine components operating condition. Friction and wear characteristics were measured and compared with the actual engine wear results to validate the test parameters. I.

Mrs Rita; S. Pimpalkar

342

1989 annual book of ASTM standards. Section 5: Petroleum products, lubricants and fossil fuels  

SciTech Connect (OSTI)

This volume of standards pertains to petroleum products and lubricants and to catalysts. The standards presented include: Standard test method for estimation of net and gross heat of combustion of petroleum fuels; Standard guide for generation and dissipation of static electricity in petroleum fuel systems; and Standard test method for solidification point of petroleum wax.

Not Available

1989-01-01T23:59:59.000Z

343

Gas-lubricated seal for sealing between a piston and a cylinder wall  

DOE Patents [OSTI]

A piston-cylinder seal uses gas for a lubricant and has a runner supported on a gapless structure and placed in the space between the piston and the cylinder wall. The runner is deformed elastically under the influence of the operating pressures to follow and compensate for variations in the piston-cylinder fit and maintain a seal. 4 figs.

Hoult, D.P.

1985-09-10T23:59:59.000Z

344

Gas-lubricated seal for sealing between a piston and a cylinder wall  

DOE Patents [OSTI]

A piston-cylinder seal uses gas for a lubricant and has a runner supported on a gapless structure and placed in the space between the piston and the cylinder wall. The runner is deformed elastically under the influence of the operating pressures to follow and compensate for variations in the piston-cylinder fit and maintain a seal.

Hoult, David P. (Box 89, Wellesley, MA 02181)

1985-01-01T23:59:59.000Z

345

MEMS Lubrication by In-Situ Tribochemical Reactions From the Vapor Phase.  

SciTech Connect (OSTI)

Vapor Phase Lubrication (VPL) of silicon surfaces with pentanol has been demonstrated. Two potential show stoppers with respect to application of this approach to real MEMS devices have been investigated. Water vapor was found to reduce the effectiveness of VPL with alcohol for a given alcohol concentration, but the basic reaction mechanism observed in water-free environments is still active, and devices operated much longer in mixed alcohol and water vapor environments than with chemisorbed monolayer lubricants alone. Complex MEMS gear trains were successfully lubricated with alcohol vapors, resulting in a factor of 104 improvement in operating life without failure. Complex devices could be made to fail if operated at much higher frequencies than previously used, and there is some evidence that the observed failure is due to accumulation of reaction products at deeply buried interfaces. However, if hypothetical reaction mechanisms involving heated surfaces are valid, then the failures observed at high frequency may not be relevant to operation at normal frequencies. Therefore, this work demonstrates that VPL is a viable approach for complex MEMS devices in conventional packages. Further study of the VPL reaction mechanisms are recommended so that the vapor composition may be optimized for low friction and for different substrate materials with potential application to conventionally fabricated, metal alloy parts in weapons systems. Reaction kinetics should be studied to define effective lubrication regimes as a function of the partial pressure of the vapor phase constituent, interfacial shear rate, substrate composition, and temperature.

Dugger, Michael T.; Asay, David B.; Kim, Seong H.

2008-01-01T23:59:59.000Z

346

Mechanics of Contact and Lubrication, MTM G230 Department of Mechanical & Industrial Enineering  

E-Print Network [OSTI]

is a fiber reinforced polymer. Due to its light weight and strength, it is used in many applications, fromMechanics of Contact and Lubrication, MTM G230 Department of Mechanical & Industrial Enineering on the same machine in the same environmental conditions for comparison. The machine to be used is the Umax

Müftü, Sinan

347

Surface Engineering to Improve the Durability and Lubricity of Ti-6Al-4V Alloy  

SciTech Connect (OSTI)

Titanium alloys offer high strength, high corrosion resistance, and the opportunity to reduce the weight of heavy vehicle engine components, but they do not perform well as bearing surfaces without further treatments or coatings. This paper explores a series of surface engineering treatments to improve the friction and wear behavior of Ti-6Al-4V alloy under diesel engine oil-lubricated conditions.

Bansal, Dinesh G [ORNL; Eryilmaz, Osman L [Argonne National Laboratory (ANL); Blau, Peter Julian [ORNL

2011-01-01T23:59:59.000Z

348

Conservative one-dimensional finite volume discretization of a new cavitation model for pistonring lubrication  

E-Print Network [OSTI]

Conservative one-dimensional finite volume discretization of a new cavitation model for piston Cavitation Elrod­Adams model Piston­rings a b s t r a c t This paper presents a conservative numerical implementation of a new cavitation model that is well suited for lubrication problems with cavitated regions

Buscaglia, Gustavo C.

349

Tribological characteristics of aluminum alloys against steel lubricated by ammonium and imidazolium ionic liquids  

SciTech Connect (OSTI)

Sliding friction and wear characteristics of aluminum alloys against AISI 52100 steel lubricated by ionic liquids (ILs) were investigated at both room and elevated temperatures. The tested aluminum alloys include a commercially pure aluminum Al 1100, a wrought alloy Al 6061-T6511, and a cast alloy Al 319-T6. The lubricating performance of two ILs with the same anion, one ammonium-based [C8H17]3NH.Tf2N and one imidazolium-based C10mim.Tf2N, were compared each other and benchmarked against that of a conventional fully-formulated engine oil. Significant friction (up to 35%) and wear (up to 55%) reductions were achieved by the ammonium IL when lubricating the three aluminum alloys compared to the engine oil. The imidazolium IL performed better than the oil but not as well as the ammonium IL for Al 1100 and 319 alloys. However, accelerated wear was unexpectedly observed for Al 6061 alloy when lubricated by C10mim.Tf2N. Surface chemical analyses implied complex tribochemical reactions between the aluminum surfaces and ILs during the wear testing, which has been demonstrated either beneficial by forming a protective boundary film or detrimental by causing severe tribo-corrosion. The effects of the IL cation structure, aluminum alloy composition, and tribo-testing condition on the friction and wear results have been discussed.

Qu, Jun [ORNL; Blau, Peter Julian [ORNL; Dai, Sheng [ORNL; Luo, Huimin [ORNL; Meyer III, Harry M [ORNL; Truhan, John J. [Caterpillar Inc.

2009-01-01T23:59:59.000Z

350

Collaborative Lubricating Oil Study on Emissions: November 28, 2006 - March 31, 2011  

SciTech Connect (OSTI)

The Collaborative Lubricating Oil Study on Emissions (CLOSE) project was a pilot investigation of how fuels and crankcase lubricants contribute to the formation of particulate matter (PM) and semi-volatile organic compounds (SVOC) in vehicle exhaust. As limited vehicles were tested, results are not representative of the whole on-road fleet. Long-term effects were not investigated. Pairs of vehicles (one normal PM emitting, one high-PM emitting) from four categories were selected: light-duty (LD) gasoline cars, medium-duty (MD) diesel trucks, heavy-duty (HD) natural-gas-fueled buses, and HD diesel buses. HD vehicles procured did not exhibit higher PM emissions, and thus were labeled high mileage (HM). Fuels evaluated were non-ethanol gasoline (E0), 10 percent ethanol (E10), conventional low-sulfur TxLED diesel, 20% biodiesel (B20), and natural gas. Temperature effects (20 degrees F, 72 degrees F) were evaluated on LD and MD vehicles. Lubricating oil vintage effects (fresh and aged) were evaluated on all vehicles. LD and MD vehicles were operated on a dynamometer over the California Unified Driving Cycle, while HD vehicles followed the Heavy Duty Urban Dynamometer Driving Schedule. Regulated and unregulated emissions were measured. Chemical markers from the unregulated emissions measurements and a tracer were utilized to estimate the lubricant contribution to PM.

Carroll, J. N.; Khalek, I. A.; Smith, L. R.; Fujita, E.; Zielinska, B.

2011-10-01T23:59:59.000Z

351

Design of a dry sump lubrication system for a Honda CBR 600 F4i engine for Formula SAE applications  

E-Print Network [OSTI]

A dry sump lubrication system for a Formula SAE race car was designed and manufactured in order to gain the various advantages this type of system affords. A dry sump system stores oil in an external tank and pumps it ...

Farkhondeh, Ehsan

2006-01-01T23:59:59.000Z

352

Experimental Studies on Visco-plastic Lubrication of Visco-elastic Fluid: Interfacial Instability and Geometry Effect  

E-Print Network [OSTI]

of application in industry, such as in co- extrusion processes and lubricated pipelining. In the case of a duct to establish the base multi-layer flows at all, using a visco-elastic fluid (Poly Ethylene Oxide solution

Ishii, Hitoshi

353

Advanced Petroleum-Based Fuels -- Diesel Emissions Control Project (APBF-DEC): Lubricants Project, Phase 2 Final Report  

SciTech Connect (OSTI)

This report summarizes the results of the second phase of a lubricants project, which investigated the impact of engine oil formulation on diesel vehicle emissions and the performance of a nitrogen oxide adsorber catalyst (NAC).

Not Available

2006-06-01T23:59:59.000Z

354

A review of lubrication and preformance issues in refrigeration systems using an HFC (R-134a) refrigerant  

SciTech Connect (OSTI)

It has been considered critical for refrigerant and compressor lubricant to be miscible with each other over part of the range of operating conditions of refrigerant systems. Adequate miscibility, many believe, provides oil return to the compressor. Presently, synthetic polyol esters have been selected for use with HFC refrigerants, such as R-134a, which are considered appropriate alternatives to CFCs. The authors will review the mechanical issues in miscible vs non-miscible naphthenic hydrocarbon oil-based lubricants. Extensive lab, test stand and cabinet testing has been conducted and data will be presented which show responsible and predictable performance based on the chemical and physical properties of the lubricant and refrigerant. Many non-miscible systems show satisfactory performance with the proper selection of lubricant, additives and mechanical configuration. 3 refs., 3 figs., 5 tabs.

Reyes-Gavilan, J.; Eckard, A.; Flak, T.; Tritak, T. [Witco Corporation, Oakland, NJ (United States)

1996-04-01T23:59:59.000Z

355

Stick-Slip Control in Nanoscale Boundary Lubrication by Surface Wettability  

E-Print Network [OSTI]

We study the effect of atomic scale surface-lubricant interactions on nanoscale boundary-lubricated friction, by considering two example surfaces - hydrophilic mica and hydrophobic graphene - confining thin layers of water in molecular dynamics simulations. We observe stick-slip dynamics for thin water films confined by mica sheets, involving periodic breaking-reforming transitions of atomic scale capillary water bridges formed around the potassium ions of mica. However, only smooth sliding without stick-slip events is observed for water confined by graphene, as well as for thicker water layers confined by mica. Thus, our results illustrate how atomic scale details affect the wettability of the confining surfaces, and consequently control the presence or absence of stick-slip dynamics in nanoscale friction.

Wei Chen; Adam S. Foster; Mikko J. Alava; Lasse Laurson

2015-02-13T23:59:59.000Z

356

Effects of Water in Synthetic Lubricant Systems and Clathrate Formation: A Literature Search and Review  

SciTech Connect (OSTI)

An extensive literature search and a confidential survey were critically analyzed to determine the effects of water on the stability of hydrofluorocarbon/synthetic lubricant systems and to identify key areas requiring further investigation. Following are highlights from the analysis: Clathrate hydrates are solid solutions formed when water molecules are linked through hydrogen bonding creating cavities that can enclose various guest molecules from hydrate formers, such as hydrofluorocarbons R-32, R-125, R-134a, R-407C and R-410A. The four methods for preventing clathrate formation were drying the gas, heating it, reducing its pressure, or using inhibitors. The hydrolysis of polyolester lubricants was mostly acid-catalyzed and its reaction rate constant typically followed the Arrhenius equation of an activated process. Hydrolytic stability improved with hindered molecular structures, and with the presence of acid catcher additives and desiccants. Water vapor can effect the adsorption of long-chain fatty acids and the chemistry of formation of protective oxide film. However, these effects on lubrication can be either positive or negative. Fifty to sixty percent of the moisture injected into an air-conditioning system remained in the refrigerant and the rest mixed with the compressor oil. In an automotive air-conditioning system using R-134a, ice would form at 0 C evaporating temperature when the water content in the vapor refrigerant on the low-pressure side was more than 350 ppm. Moisture would cause the embrittlement of polyethylene terephthalate and the hydrolysis of polyesters, but would reduce the effect of amine additives on fluoroelastomer rubbers. The reactions of water with refrigerants and lubricants would cause formicary and large-pit corrosion in copper tubes, as well as copper plating and sludge formation. Moreover, blockage of capillary tubes increased rapidly in the presence of water. Twenty-four companies responded to the survey. From the responses, the water concentrations specified and expected for different refrigerant/lubricant systems varied depending on the products, their capacities and applications, and also on the companies. Among the problems associated with high moisture level, lubricant breakdown was of greatest concern, followed by acid formation, compressor failure and expansion valve sticking. The following research topics are suggested: 1. The air-conditioning and refrigeration industry needs to measure and record the water content and total acid number of the lubricant of newly installed systems as well as operating systems that are shutdown for service or repair. The reason for the shutdown needs to be documented. A database can then be established to correlate water content with type and cause of breakdown. 2. Detailed studies on the distribution of water in refrigeration and air-conditioning systems should be conducted to pinpoint problem areas associated with free water. 3. Research is needed to validate the current theories and mechanisms of formicary corrosion. Corrosion inhibitors need to be developed. 4. The conditions for clathrate formation and decomposition of other alternative refrigerants, such as R-23, R-41, R-116, R-125, R-143a, R-404A and R-507C, and water should be determined to avoid possible problems associated with tube plugging. The mechanism by which water facilitates or hinders lubrication needs to be studied.

Rohatgi, Ngoc Dung T.

2001-08-08T23:59:59.000Z

357

Lubricant return comparison of naphthenic and polyol ester oils in R-134a household refrigeration applications  

SciTech Connect (OSTI)

This paper presents mineral oils and polyol esters as possible lubricant options for domestic refrigeration applications employing R-134a as the heat exchange fluid. A performance comparison, based on data presented, is made between the mineral oils and polyol esters evaluated. To more closely examine lubricant return with N-70 and R-134a and ensure that the oil is not contributing to any deterioration in efficiency due to its accumulation in evaporators, a special test unit was designed with a difficult oil return configuration and its performance carefully monitored. Oil return with a hydrofluorocarbon-miscible polyol ester, R-133-O was also evaluated in this setup and its performance results compared to those obtained with the naphthenic refrigeration oil.

Reyes-Gavilan, J.L.; Flak, G.T.; Tritcak, T.R. [Witco Corp., Oakland, NJ (United States)

1996-12-31T23:59:59.000Z

358

Ab initio calculations of various protonation sites in perfluorodiethyl ether: Models for high temperature lubricant decomposition?  

SciTech Connect (OSTI)

Although perfluoropolyether (PFPE) lubricants have found successful application in spacecraft mechanisms and computer hard drives, there eventual breakdown is irksome, and the mechanism of decomposition is the subject of much scrutiny. However, very little notice is taken of the monomer ethers on which the polymer lubricants are based. Recently, concerted studies of the Lewis base properties of various fluorinated ethers have been performed, both from an experimental and a theoretical viewpoint. As an extension of the theoretical work, this study presents ab initio theoretical consideration of the multiple potential basic sites within perfluorodiethyl ether, (CF{sub 3}CF{sub 2}){sub 2}O, by way of the proton affinity of the molecule at various possible protonation sites (i.e., oxygen and fluorine atoms). The results indicate that although protonation at the oxygen is more energetically favored, protonation at the fluorine is not much higher in energy and provides for formation of an excellent leaving group, HF.

Ball, D.W. [Cleveland State Univ., OH (United States). Dept. of Chemistry

1995-04-01T23:59:59.000Z

359

Tribocharging phenomena in hard disk amorphous carbon coatings with and without perfluoropolyether lubricants  

SciTech Connect (OSTI)

Scanning polarization force microscopy was used to study changes in surface potential (tribocharging) caused by the contact between a tungsten carbide tip and the amorphous carbon coating of a hard disk, both when bare and when covered with Zdol-TX lubricant. The surface potential change produced by tip contact decays with time at a rate that is strongly dependent on lubricant coverage and on the presence of oxygen and water vapor in the environment. Two different charging mechanisms are proposed. One involves chemical modification of the surface by removal of oxygen bound to the surface. This gives rise to a potential change that decays with time. Another mechanism involves trapping of charge in states within the energy gap of the insulating carbon film. The potential change due to this trapped charge does not decay over periods much greater than 1 h.

van den Oetelaar, R. J. A.; Xu, L.; Ogletree, D. F.; Salmeron, M.; Tang, H.; Gui, J.

2001-04-01T23:59:59.000Z

360

Tribocharging phenomena in hard disk amorphous carbon coatings with and without perfluoropolyether lubricants  

SciTech Connect (OSTI)

Scanning polarization force microscopy was used to study changes in surface potential (tribocharging) caused by the contact between a tungsten carbide tip and the amorphous carbon coating of a hard disk,both when bare and when covered with Zdol-TX lubricant. The surface potential change produced by tip contact decays with time at a rate that is strongly dependent on lubricant coverage, and on the presence of oxygen and water vapor in the environment. Two different charging mechanisms are proposed. One involves chemical modification of the surface by removal of oxygen bound to the surface. This gives rise to a potential change that decays with time. Another mechanism involves trapping of charge in states within the energy gap of the insulating carbon film. The potential change due to this trapped charge does not decay over periods much greater than 1 hour.

van den Oetelaar, Ronald J.A.; Xu, Lei; Ogletree, D. Frank; Salmeron, Miquel; Tang, Hung; Gui, Jing

2000-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

EXPERIMENTAL INVESTIGATIONS IN AN INSULATED DI DIESEL ENGINE WITH NEWLY DEVELOPED LUBRICANTS  

E-Print Network [OSTI]

Ever since the rise of fuel cost and rapidly depleting conventional energy sources the diesel engine manufacturers have been allocating a great deal of research for the improvement of the engine thermal efficiency and developing of alternative fuels. The alternative fuels developed should be renewable with low emissions. This recognizes alcohol as a preferable replacement because these are derived from indigenous sources and are renewable. But the alcohols by their nature do not make a good C.I Engine fuels and this can be ignited in the high temperature combustion chambers. So in the present work a thermally insulated (PSZ coated cylinder head, valves and air gap liner and air gap piston) engine is developed for improving fuel efficiency and to reduce the emissions. The low viscosity of alcohols leads to the problem of injection and equipment wear and tear. In order to compensate this, the fuel injection pressure has been reduced to 165 bar for the experimentation. Tests are conducted on a single cylinder 4-stroke, water-cooled 3.68 KW Kirloskar C.I. engine. Performance of lubricating oil plays an important role in determining the amount of power output and the improvement in the efficiency of the engine. At present first we tried the commercial lubricant for the experimentation. But the performance of this lubricant is inadequate at escalated thermal environment and the frictional losses are found to be higher. So in the present work new lubricants are developed and are further blended with different additives and analyzed the frictional losses to find the best oil.

Rob Res; S Sunil; Kumar Reddy; S P Akbar Hussain

362

Transverse electrokinetic and microfluidic effects in micro-patterned channels: lubrication analysis for slab geometries  

E-Print Network [OSTI]

Off-diagonal (transverse) effects in micro-patterned geometries are predicted and analyzed within the general frame of linear response theory, relating applied presure gradient and electric field to flow and electric current. These effects could contribute to the design of pumps, mixers or flow detectors. Shape and charge density modulations are proposed as a means to obtain sizeable transverse effects, as demonstrated by focusing on simple geometries and using the lubrication approximation.

Armand Ajdari

2001-01-29T23:59:59.000Z

363

Improving the Carbon Dioxide Emission Estimates from the Combustion of Fossil Fuels in California  

E-Print Network [OSTI]

product consumption Nat Gas NGL Additives Crude Tot Pet.Pet Coke Lubricants Asphalt Waxes Special Naphtha Petrochem feedstocks Other Petro Prods Coal Net reconciliation error Total Consumption

de la Rue du Can, Stephane

2010-01-01T23:59:59.000Z

364

Oil-Miscible and Non-Corrosive Phosphonium Ionic Liquids as Candidate Lubricant Additives  

SciTech Connect (OSTI)

Ionic liquids (ILs) have been receiving considerable attention from the lubricants industry as potential friction and wear-reducing additives, but their solubility in oils is an issue. Unlike most ionic liquids that are insoluble in non-polar hydrocarbon oils, this study reports phosphonium-based ILs (PP-ILs) that are fully miscible with both mineral oil-based and synthetic lubricants. Both the cation and anion in quaternary structures, long alkyl chains, and capability of pairing the cation and the anion via a H-O bond are hypothesized to improve the compatibility between ions and neutral oil molecules. The measured viscosities of the oil-IL blends agree well with the Refutas equation that is for solutions containing multiple components. High thermal stability and non-corrosiveness were observed for the PP-ILs. Effective friction reduction and anti-wear functionality have been demonstrated in tribological tests when adding 5 wt% of a PP-IL into a base oil, suggesting potential applications for using the oil-miscible PP-ILs as lubricant additives.

Yu, Bo [ORNL; Bansal, Dinesh G [ORNL; Qu, Jun [ORNL; Sun, Xiaoqi [ORNL; Luo, Huimin [ORNL; Dai, Sheng [ORNL; Blau, Peter Julian [ORNL; Bunting, Bruce G [ORNL; Mordukhovich, Gregory [GM R& D and Planning, Warren, Michigan; Smolenski, Donald [GM R& D and Planning, Warren, Michigan

2012-01-01T23:59:59.000Z

365

The role of polymer formation during vapor phase lubrication of silicon.  

SciTech Connect (OSTI)

The lubrication of silicon surfaces with alcohol vapors has recently been demonstrated. With a sufficient concentration of pentanol vapor present, sliding of a silica ball on an oxidized silicon wafer can proceed with no measurable wear. The initial results of time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis of wear surfaces revealed a reaction product having thickness on the order of a monolayer, and with an ion spectrum that included fragments having molecular weights of 200 or more that occurred only inside the wear tracks. The parent alcohol molecule pentanol, has molecular weight of 88amu, suggesting that reactions of adsorbed alcohols on the wearing surfaces allowed polymerization of the alcohols to form higher molecular weight species. In addition to pin-on-disk studies, lubrication of silicon surfaces with pentanol vapors has also been demonstrated using MicroElectroMechanical Systems (MEMS) devices. Recent investigations of the reaction mechanisms of the alcohol molecules with the oxidized silicon surfaces have shown that wearless sliding requires a concentration of the alcohol vapor that is dependent upon the contact stress during sliding, with higher stress requiring a greater concentration of alcohol. Different vapor precursors including those with acid functionality, olefins, and methyl termination also produce polymeric reaction products, and can lubricate the silica surfaces. Doping the operating environment with oxygen was found to quench the formation of the polymeric reaction product, and demonstrates that polymer formation is not necessary for wearless sliding.

Dugger, Michael Thomas; Dirk, Shawn M.; Ohlhausen, James Anthony

2010-10-01T23:59:59.000Z

366

US Synthetic Corp (TRL 4 Component)- The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines  

Broader source: Energy.gov [DOE]

US Synthetic Corp (TRL 4 Component) - The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines

367

Bench-Scale Synthetic Optimization of 1,2-bis(2-aminophenylthio)ethane (APO-Link) Used in the Production of APO-BMI Resin  

SciTech Connect (OSTI)

The diamine reagent 1,2-bis(2-aminophenylthio)ethane is no longer commercially available but still required for the synthesis of the bismaleimide resin, APO-BMI, used in syntactic foams. In this work, we examined the hydrolysis of benzothiazole followed the by reaction with dichloroethane or dibromoethane. We also studied the deprotonation of 2-aminothiophenol followed by the reaction with dibromoethane. We optimized the latter for scale-up by scrutinizing all aspects of the reaction conditions, work-up and recrystallization. On bench-scale, our optimized procedure consistently produced a 75-80% overall yield of finely divided, high purity product (>95%).

Hilary Wheeler; Crystal Densmore

2007-07-31T23:59:59.000Z

368

Biodegradation of ddt (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane) by the white rot fungus phanerochaete chrysosporium  

SciTech Connect (OSTI)

Extensive biodegradation of 1,1,1-trichloro-2,2bis(4-chlorophenyl)ethane (DDT) by the white rot fungus Phanerochaete chrysosporium was demonstrated by disappearance and mineralization of (14C) DDT in nutrient nitrogen-deficient cultures. Mass balance studies demonstrated the formation of polar and water-soluble metabolites during degradation. Hexane-extractable metabolites identified by gas chromatography-mass spectrometry included 1,1-dichloro-2,2-bis(4-chlorophenyl)ethane(DDD), 2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol (dicofol), 2,2-dichloro-1,1-bis(4-chlorophenyl) ethanol (FW-152), and 4,4'-dichlorobenzophenone (DBP). DDD was the first metabolite observed; it appeared after 3 days of incubation and disappeared from culture upon continued incubation. This, as well as the fact that ((14)C) dicofol was mineralized, demonstrates that intermediates formed during DDT degradation are also metabolized. These results demonstrate that the pathway for DDT degradation in P. chrysosporium is clearly different from the major pathway proposed for microbial or environmental degradation of DDT. Like P. chrysosporium ME-446 and BKM-F-1767, the white rot fungi Pleurotus ostreatus, Phellinus weirii, and Polyporus versicolor also mineralized DDT.

Bumpus, J.A.; Aust, S.D.

1987-01-01T23:59:59.000Z

369

Ethane/Ethylene Exports  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecemberSteam Coal Import96Nebraska NuclearDecade2003 DetailedUse inRevenueMay6 63

370

The Standard Test Method for Measurement of Extreme Pressure Properties of Various Lubricating oils by Using Four Ball Extreme Pressure oil Testing Machine.  

E-Print Network [OSTI]

Abstract:As per the American Society of Testing Materials (ASTM-D-2783), the standard test method for measurement of Extreme Pressure (E.P.) properties of lubricating oils by using Four Ball Extreme Pressure Oil Testing Machine (F.B.E.P.O.T.M.) plays an important role in oil industry while selecting such oils as a lubricating media for testing various types of E.P. lubricating oils. Lubricating oils are needed to reduce frictional losses as well as to support working load and avoid metal to metal contact between the components working together for obtaining desired functions in machines.This F.B.E.P.O.T.M is utilized for finding the load carrying capacity and weld point of different types of lubricants/Oils fluids. Extreme Pressure (E.P.) properties like-Load wear Index,Weld Point, Non load are the basis of differentiation of Lubricating oils having low, medium and high level of extreme pressure properties. In this paper we find out or Evaluate Tribological (E.P.) properties i e. of load carrying capacity and weld point or various oils or lubricants used for various purposes. It?s necessary to form a lubricating fluid film of low shear strength, then it is possible to decide the film breaking strength in other words load carrying capacity of oil can be calculated.

Prof A. D. Dongare

371

A NEW CAVITATION MODEL IN LUBRICATION: THE CASE OF TWOZONE CAVITATION GUSTAVO C. BUSCAGLIA, IONEL CIUPERCA, ERIC DALISSIER, AND MOHAMMED JAI  

E-Print Network [OSTI]

A NEW CAVITATION MODEL IN LUBRICATION: THE CASE OF TWO­ZONE CAVITATION GUSTAVO C. BUSCAGLIA, IONEL of cavitation in lubricated devices is proposed, such that the translation velocity V for the saturation field of course the cavitation boundary leaves the domain or disappears. A few preliminary numerical examples

Buscaglia, Gustavo C.

372

Triboelectric charging of a perfluoropolyether lubricant J. V. Wasem, B. L. LaMarche, S. C. Langford, and J. T. Dickinsona)  

E-Print Network [OSTI]

Triboelectric charging of a perfluoropolyether lubricant J. V. Wasem, B. L. LaMarche, S. C, Washington 99164-2814 Received 10 July 2002; accepted 14 November 2002 Perfluoropolyethers PFPE are used of the lubricant. © 2003 American Institute of Physics. DOI: 10.1063/1.1536011 1. INTRODUCTION Perfluoropolyethers

Dickinson, J. Thomas

373

SOLAR HEATING OF TANK BOTTOMS Application of Solar Heating to Asphaltic and Parrafinic Oils Reducing Fuel Costs and Greenhouse Gases Due to Use of Natural Gas and Propane  

SciTech Connect (OSTI)

The sale of crude oil requires that the crude meet product specifications for BS&W, temperature, pour point and API gravity. The physical characteristics of the crude such as pour point and viscosity effect the efficient loading, transport, and unloading of the crude oil. In many cases, the crude oil has either a very high paraffin content or asphalt content which will require either hot oiling or the addition of diluents to the crude oil to reduce the viscosity and the pour point of the oil allowing the crude oil to be readily loaded on to the transport. Marginal wells are significantly impacted by the cost of preheating the oil to an appropriate temperature to allow for ease of transport. Highly paraffinic and asphaltic oils exist throughout the D-J basin and generally require pretreatment during cold months prior to sales. The current study addresses the use of solar energy to heat tank bottoms and improves the overall efficiency and operational reliability of stripper wells.

Eugene A. Fritzler

2005-09-01T23:59:59.000Z

374

A Low-Carbon Fuel Standard for California, Part 1: Technical Analysis  

E-Print Network [OSTI]

and power via biomass gasification. Biomass and Bioenergyrenewables Integrated coal gasification combined cycle withLubricants Waxes Naptha Gasification Ethane, Benzene, and

Farrell, Alexander E.; Sperling, Dan

2007-01-01T23:59:59.000Z

375

A Low-Carbon Fuel Standard for California Part 1: Technical Analysis  

E-Print Network [OSTI]

and power via biomass gasification. Biomass and Bioenergyrenewables Integrated coal gasification combined cycle withLubricants Waxes Naptha Gasification Ethane, Benzene, and

2007-01-01T23:59:59.000Z

376

Diesel Generator Fuel Oil, Diesel Generator Lubricating Oil, and Diesel Generator Starting Air Requirements"  

E-Print Network [OSTI]

(ISTS) and adds requirements for DG Lubricating Oil, and DG Starting Air. The proposed changes will assure that required quality and quantity of DG Fuel Oil is maintained and also will assure that sufficient DG Lubricating Oil and DG Starting Air is maintained. This proposed amendment imposes limits on DG support system parameters to ensure the DGs will be able to perform their design function. This proposed amendment also brings the current TS on DG Fuel Oil into alignment with the ISTS. This amendment is modeled after the ISTS, Section 3.8.3. This amendment also incorporates into the FCS TS improvements to ISTS Sections 3.8.3 and 5.5 consistent with those provided in Technical Specification Task Force (TSTF) travelers TSTF-254, Rev. 2 and TSTF-374, Rev. 0. FCS also requests approval of reduction in commitments with respect to the FCS Quality Assurance (QA) Program associated with this License Amendment Request. This License Amendment Request adds a Surveillance [Table 3-5, Item 9c] stating that the DG Fuel Oil Properties are required to be verified within limits in accordance with the Diesel Fuel Oil Testing Program. These tests are to be conducted prior to adding the new fuel to the storage tank(s), but in no case is the time between receipt of new fuel and conducting the tests to exceed 31 days.

Omaha Public; Power Distrct

1979-01-01T23:59:59.000Z

377

Miscibility, solubility, viscosity, and density measurements for R-236fa with potential lubricants. Final report  

SciTech Connect (OSTI)

The report gives results of miscibility, solubility, viscosity, and density measurements for refrigerant R-236fa and two potential lubricants. (The data are needed to determine the suitability of refrigerant/lubricant combinations for use in refrigeration systems.) The tested oils were pentaerythritol ester mixed-acid (ISO68), hereafter SW-68 manufactured by Castrol, and polyol ester mixed-acid (ISO46), hereafter Arctic-46 manufactured by Mobil. Miscibility was measured in a series of miniature test cells submerged in a constant temperature bath, precisely controlled over a temperature range of -50 to 90 C. Solubility, viscosity, and density data were also obtained for R-236fa mixed with the two oils for a refrigerant concentration of 0 to 40 wt % refrigerant over a temperature range of 30 to 100 C. This research shows that: (1) solubility, viscosity, and density are functions of temperature and concentration, (2) solubility increases with increasing temperature and refrigerant concentration (i.e., mass fraction of refrigerant). (3) viscosity decreases with increasing temperature and refrigerant concentration, and (4) density decreases with increasing temperature but increases with increasing refrigerant concentration. R-114 and naphthenic mineral oil were also tested.

Kang, H.M.; Pate, M.B.

1999-02-01T23:59:59.000Z

378

Lubrication and Tool-wear in the Turning of Hard Powdered Metals By: Edward Chow and Anastasia Linuwih  

E-Print Network [OSTI]

Lubrication and Tool-wear in the Turning of Hard Powdered Metals By: Edward Chow and Anastasia Linuwih Background A current target and need in the auto industry is to achieve improved tool life in machining powered metal valve seats for an engine block. The tools required are specialized and expensive

Demirel, Melik C.

379

Friction-induced vibration of a lubricated mechanical system J-J. Sinou*, J. Cayer-Barrioz and H. Berro  

E-Print Network [OSTI]

1 Friction-induced vibration of a lubricated mechanical system J-J. Sinou*, J. Cayer-Barrioz and H that incorporates realistic laws of local friction issued from previous experimental results. The objective or by themselves, such as friction-induced vibrations. In all cases, these vibrations are hardly controllable

Paris-Sud XI, Université de

380

Effect of Magnetic Field on The Friction and Wear Displayed by The Scratch of Oil Lubricated Steel  

E-Print Network [OSTI]

Abstract The present work discusses the effect of magnetic field on the friction and wear of steel scratched by TiC insert. The steel was lubricated by oil and dispersed by iron, copper and aluminium powders as well as polymeric powders such as high density polyethylene (PE), polymethyl methacrylate (PMMA) and polyamide (PA6). Molybdenum disulphide (MoS 2) and graphite (C) were added to the oil as dispersant. Paraffin oil was used as lubricant. Friction coefficient and wear of the tested composites were investigated using a tribometer designed and manufactured for that purpose. It was found that application of induction magnetic field decreased friction coefficient. The decrease was significant for oil lubricated steel and oil dispersed by aluminium, copper, PMMA and PA6 + 10 wt. % C, while addition of iron, PE and MoS 2 particles showed slight friction decrease. At no magnetic field friction coefficient for oil dispersed by aluminium and copper particles showed values lower than that observed for oil dispersed by iron particles. The lowest values of friction coefficient were displayed by oil dispersed by PE particles. Magnetic field caused significant wear increase for oil lubricated steel, where aluminium, copper and PA6 + C particles displayed relatively higher wear, while addition of iron, PE, PMMA and MoS 2 particles showed slight wear increase. At no magnetic field wear decreased due to the action of aluminium particles which formed a continuous layer on the steel surface and consequently decreased wear. Wear of oil lubricated steel dispersed by PE particles displayed relatively low values. Magnetic field showed no significant change on wear of the steel surface. Index Term-- Induction, magnetic field, scratch, friction coefficient, wear, iron, copper, aluminium polymethyl methacrylate, polyethylene, polyamide, molybdenum disulphide, paraffin oil. I.

unknown authors

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Theory of a Possible Mechanism for Lubrication and Surface Protection by an Electrically Neutral Hydrogels  

E-Print Network [OSTI]

It is demonstrated that polymers sticking out of the surface of a neutral hydrogel are capable of preventing adhesive forces from pulling a hydrogel into close contact with a surface against which it is pressed. The proposed mechanism for lubrication or surface protection suggests a possible mechanism for protecting the cornea from a contact lens, which is held against the eye by Laplace pressure. This mechanism, however, is only able to keep a gel coated surface from sticking to a surface against which it is pressed, if the gel and surface are bathed in fluid. Expected optical properties of the gel-surface interface are discussed, in order to suggest possible ways to study the gel-solid interface experimentally.

J. B. Sokoloff

2014-09-18T23:59:59.000Z

382

Lubricant-infused micro/nano-structured surfaces with tunable dynamic omniphobicity at high temperatures  

SciTech Connect (OSTI)

Omniphobic surfaces that can repel fluids at temperatures higher than 100 #2;C are rare. Most stateof- the-art liquid-repellent materials are based on the lotus effect, where a thin air layer is maintained throughout micro/nanotextures leading to high mobility of liquids. However, such behavior eventually fails at elevated temperatures when the surface tension of test liquids decreases significantly. Here, we demonstrate a class of lubricant-infused structured surfaces that can maintain a robust omniphobic state even for low-surface-tension liquids at temperatures up to at least 200 #2;C. We also demonstrate how liquid mobility on such surfaces can be tuned by a factor of 1000.

Daniel, Daniel; Max, Mankin N.; Belisle, Rebecca A.; Wong, Tak-Sing; Aizenberg, Joanna

2013-06-12T23:59:59.000Z

383

A new emergency lubricating-oil system for steam turbine generators: Final report  

SciTech Connect (OSTI)

A positive-displacement pump, powered by a turbine-shaft driven permanent magnet generator (PMG) can be used to provide lubricating oil over nearly the entire turbine generator speed range. The concept offers high reliability through its simplicity; switchgear, batteries and other auxiliaries are eliminated by hard-wiring the PMG to the pump induction drive motor. In this study, an existing PMG supplying power to the electrohydraulic control (EHC) system was evaluated as the power supply for an induction motor-driven screw pump running in a ''wafting'' mode as a backup to a conventional dc emergency oil system. The screw pump rotates all the time that the turbine shaft turns; check valves allow it to deliver oil instantly if the system pressure falls. It was found that the pump drive motor would start and run reliably with no adverse effects on the PMG or the electrohydraulic control (EHC) system. 6 refs., 23 figs., 11 tabs.

Kalan, G.L.; Oney, W.R.; Steenburgh, J.H.; Elwell, R.C.

1987-04-01T23:59:59.000Z

384

Lubricating system for thermal medium delivery parts in a gas turbine  

DOE Patents [OSTI]

Cooling steam delivery tubes extend axially along the outer rim of a gas turbine rotor for supplying cooling steam to and returning spent cooling steam from the turbine buckets. Because of the high friction forces at the interface of the tubes and supporting elements due to rotor rotation, a low coefficient of friction coating is provided at the interface of the tubes and support elements. On each surface, a first coating of a cobalt-based alloy is sprayed onto the surface at high temperature. A portion of the first coating is machined off to provide a smooth, hard surface. A second ceramic-based solid film lubricant is sprayed onto the first coating. By reducing the resistance to axial displacement of the tubes relative to the supporting elements due to thermal expansion, the service life of the tubes is substantially extended.

Mashey, Thomas Charles (Coxsackie, NY)

2002-01-01T23:59:59.000Z

385

Effects of self-assembled monolayer and PFPE lubricant on wear characteristics of flat silicon tips.  

SciTech Connect (OSTI)

The effects of self-assembled monolayer (SAM) and perfluoropolyether (PFPE) lubricant on the wear characteristics of flat silicon tips were investigated. The wear test consisted of sliding the silicon tips fabricated on a flat silicon specimen against SAM and PFPE (Z-tetraol) coated silicon (100) wafer. The tips were slid at a low speed for about 15 km under an applied load of 39.2 {micro}N. The wear volume of the tip was obtained by measuring the tip profile using an Atomic Force Microscope (AFM). It was found that the coatings were effective in reducing the wear of the tips by an order of magnitude from 10{sup -6} to 10{sup -7}.

Kim, H. J.; Jang, C. E.; Kim, D. E.; Kim, Y. K.; Choa, S. H.; Hong, S.; Materials Science Division; Yonsei Univ.; Samsung Adv. Inst. Science and Technology; Seoul National Univ. of Technology

2009-01-01T23:59:59.000Z

386

Performance Evaluation of A Household Refrigerator Using Cuo Nanoparticle Lubricant Mixture and Various Other Compressor Oils with Different Condenser Modes  

E-Print Network [OSTI]

Abstract:- The objective of this paper was to study the performance of household refrigerator having both air and water-cooled condenser, with 0.06 % mass fraction CuO nanoparticle-lubricant mixture and different types of compressor oils. The experiment was done using HFC134a as the refrigerant, CuO nanoparticles, Polyol-ester oil (POE) oil which is used as the conventional lubricant in the household refrigerator and SUNISO 3GS mineral oil as the lubricant alternatively. The result indicates that the refrigerator performance had improved while using CuO nanoparticle-lubricant mixture. The performance was also improved when HFC134a/SUNISO 3GS mineral oil system was used instead of HFC134a/POE oil system and there was also an enhancement when water-cooled condenser was used instead of the conventional air-cooled condenser on all load conditions. The HFC134a/CuO/SUNISO 3GS mineral oil system works normally and safely in the refrigerator. HFC134a/CuO/SUNISO 3GS mineral oil system reduced the energy consumption between 12 % and 19 % when compared with the HFC134a/POE oil system and between 9 % and 14 % while working with water-cooled condenser on various load conditions. There was also an enhancement in coefficient of performance (COP) when CuO nanoparticle-lubricant mixture was used instead of POE oil as the lubricant. The water cooled heat exchanger was designed and the system was modified by retrofitting it, along with the conventional air-cooled condenser by making a bypass line and thus the system can be utilized as a waste heat recovery unit. Experimental result shows that about 200 litres of hot water at a temperature of about 58C over a day can be generated. Techno economic analysis shows that the installation cost and running cost of the waste heat recovery system for a day is much lower than that of a conventional

Sreejith. K

387

Benchmark atomization energy of ethane : importance of accurate zero-point vibrational energies and diagonal Born-Oppenheimer corrections for a 'simple' organic molecule.  

SciTech Connect (OSTI)

A benchmark calculation of the atomization energy of the 'simple' organic molecule C2H6 (ethane) has been carried out by means of W4 theory. While the molecule is straightforward in terms of one-particle and n-particle basis set convergence, its large zero-point vibrational energy (and anharmonic correction thereto) and nontrivial diagonal Born-Oppenheimer correction (DBOC) represent interesting challenges. For the W4 set of molecules and C2H6, we show that DBOCs to the total atomization energy are systematically overestimated at the SCF level, and that the correlation correction converges very rapidly with the basis set. Thus, even at the CISD/cc-pVDZ level, useful correlation corrections to the DBOC are obtained. When applying such a correction, overall agreement with experiment was only marginally improved, but a more significant improvement is seen when hydrogen-containing systems are considered in isolation. We conclude that for closed-shell organic molecules, the greatest obstacles to highly accurate computational thermochemistry may not lie in the solution of the clamped-nuclei Schroedinger equation, but rather in the zero-point vibrational energy and the diagonal Born-Oppenheimer correction.

Karton, A.; Martin, J. M. L.; Ruscic, B.; Chemistry; Weizmann Institute of Science

2007-06-01T23:59:59.000Z

388

Rolling contact fatigue in high vacuum using ion plated nickel-copper-silver solid lubrication  

SciTech Connect (OSTI)

Ion plated, nickel-copper-silver coated steel ball bearings that were tested in rolling contact fatigue (RCF) experiments in high vacuum are presented in this article. ANSI T5 ball bearings were coated with approximately 10 nm of nickel-copper followed by 100 nm of silver using a dc ion plating process. The balls were then tested for RCF in vacuum in the 10{sup -7} Torr range at 130 Hz rotational speed and at 4.1 GPa Hertzian contact stress. The significance of this work is in the extension of RCF testing to an ultrahigh vacuum (UHV) application using silver as a lubricant instead of oil. The effects of pressure and voltage on the ion plating process were also investigated using scanning electron microscopy and RCF life testing in UHV. Test results with a ball size of 5/16 in. in UHV show that deposition at voltages greater than 2.5 kV shortens the RCF life and introduces a unique failure mode. Voltage and pressure fluctuations during the deposition process result in significant thickness monitor measurement errors as well. A regulator control scheme that minimizes the process pressure overshoot is also simulated.

Danyluk, Mike; Dhingra, Anoop [Mechanical Engineering Department, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211-3029 (United States)

2011-01-15T23:59:59.000Z

389

Tribological evaluation of piston skirt/cylinder liner contact interfaces under boundary lubrication conditions.  

SciTech Connect (OSTI)

The friction and wear between the piston and cylinder liner significantly affects the performance of internal combustion engines. In this paper, segments from a commercial piston/cylinder system were tribologically tested using reciprocating motion. The tribological contact consisted of aluminium alloy piston segments, either uncoated, coated with a graphite/resin coating, or an amorphous hydrogenated carbon (a-C : H) coating, in contact with gray cast iron liner segments. Tests were conducted in commercial synthetic motor oils and base stocks at temperatures up to 120 C with a 2 cm stroke length at reciprocating speeds up to 0.15 m s{sup -1}. The friction dependence of these piston skirt and cylinder liner materials was studied as a function of load, sliding speed and temperature. Specifically, an increase in the sliding speed led to a decrease in the friction coefficient below approximately 70 C, while above this temperature, an increase in sliding speed led to an increase in the friction coefficient. The presence of a coating played an important role. It was found that the graphite/resin coating wore quickly, preventing the formation of a beneficial tribochemical film, while the a-C : H coating exhibited a low friction coefficient and provided significant improvement over the uncoated samples. The effect of additives in the oils was also studied. The tribological behaviour of the interface was explained based on viscosity effects and subsequent changes in the lubrication regime, formation of chemical and tribochemical films.

Demas, N. G.; Erck, R. A.; Fenske, G. R.; Energy Systems

2010-03-01T23:59:59.000Z

390

Syntheses and characterization of energetic compounds constructed from alkaline earth metal cations (Sr and Ba) and 1,2-bis(tetrazol-5-yl)ethane  

SciTech Connect (OSTI)

Two new energetic compounds, [M(BTE)(H{sub 2}O){sub 5}]{sub n} (M=Sr(1), Ba(2)) [H{sub 2}BTE=1,2-bis(tetrazol-5-yl)ethane], have been hydrothermally synthesized and structurally characterized. Single-crystal X-ray diffraction analyses reveal that they are isomorphous and exhibit 2D (4,4) net framework, generated by 4-connected Sr{sub 2}(H{sub 2}O){sub 10}/Ba{sub 2}(H{sub 2}O){sub 10} SBUs linked up by two independent binding modes of H{sub 2}BTE, and the resulting 2D structure is interconnected by hydrogen-bond and strong face to face {pi}-{pi} stacking interactions between two tetrazole rings to lead to a 3D supramolecular architecture. DSC measurements show that they have significant catalytic effects on thermal decomposition of ammonium perchlorate. Moreover, the photoluminescence properties, thermogravimetric analyses, and flame colors of the as-prepared compounds are also investigated in this paper. - Graphical abstract: Two novel 2D isomorphous alkaline earth metal complexes were assembled by 4-connected Sr{sub 2}(H{sub 2}O){sub 10}/Ba{sub 2}(H{sub 2}O){sub 10} SBUs and two independent binding modes of H{sub 2}BTE ligands, and the catalytic performances toward thermal decomposition of ammonium perchlorate and photoluminescent properties of them were investigated. Highlights: > Two novel alkaline earth energetic coordination polymers have been prepared.{yields} Both structures are layered based on 4-connected Sr{sub 2}(H{sub 2}O){sub 10}/Ba{sub 2}(H{sub 2}O){sub 10} SBUs and two distinct H{sub 2}BTE coordination modes.{yields} The dehydrated products of the compounds possess good thermostability and significant catalytic effects on thermal decomposition of AP.

Xia Zhengqiang [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China); Chen Sanping, E-mail: sanpingchen@126.com [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China); Wei Qing, E-mail: weiqq@126.com [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China); Qiao Chengfang [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China)

2011-07-15T23:59:59.000Z

391

Solubility, viscosity and density of refrigerant/lubricant mixtures. Quarterly technical progress report, 1 October--31 December 1992  

SciTech Connect (OSTI)

This report presents results on low refrigerant concentration (70, 80, 90, and 100 weight percent lubricant) mixtures of the following fluids: CFC-12/ISO 32 naphthenic mineral oil; HCFC-22/ISO 32 naphthenic mineral oil; and HFC-134a/ISO 32 pentaerythritol ester mixed acid. These data have been reduced to engineering form and are presented in the form of a Daniel Chart. Scatter diagrams are given for the first fluid listed above, with the intent of illustrating the quality of data as well as providing the rationale for selecting the particular functional forms chosen to represent the experimental data. Equations are given along with statistical measures of goodness of fit.

Henderson, D.R.

1993-01-01T23:59:59.000Z

392

Direct observation of surface ethyl to ethane interconversion uponC2H4 hydrogenation over Pt/Al2O3 catalyst by time-resolved FT-IRspectroscopy  

SciTech Connect (OSTI)

Time-resolved FT-IR spectra of ethylene hydrogenation over alumina-supported Pt catalyst were recorded at 25 ms resolution in the temperature range 323 to 473 K using various H2 flow rates (1 atm total gas pressure). Surface ethyl species (2870 and 1200 cm-1) were detected at all temperatures along with the gas phase ethane product (2954 and 2893 cm-1). The CH3CH2Pt growth was instantaneous on the time scale of 25ms under all experimental conditions. At 323 K, the decay time of surface ethyl (122 + 10 ms) coincides with the rise time of C2H6 (144 + 14 ms).This establishes direct kinetic evidence for surface ethyl as the kinetically relevant intermediate. Such a direct link between the temporal behavior of an observed intermediate and the final product growth in a heterogeneous catalytic system has not been demonstrated before to our knowledge. A fraction (10 percent) of the asymptotic ethane growth at 323 K is prompt, indicating that there are surface ethyl species that react much faster than the majority of the CH3CH2Pt intermediates. The dispersive kinetics is attributed to the varying strength of interaction of the ethyl species with the Pt surface caused by heterogeneity of the surface environment. At 473 K, the majority of ethyl intermediates are hydrogenated prior to the recording of the first time slice (24 ms), and a correspondingly large prompt growth of ethane is observed. The yield and kinetics of the surface ethylidyne are in agreement with the known spectator nature of this species.

Wasylenko, Walter; Frei, Heinz

2004-12-10T23:59:59.000Z

393

Accelerated screening methods for determining chemical and thermal stability of refrigerant-lubricant mixtures, Part 1: Method assessment. Final report  

SciTech Connect (OSTI)

This report presents results of a literature search performed to identify analytical techniques suitable for accelerated screening of chemical and thermal stabilities of different refrigerant/lubricant combinations. Search focused on three areas: Chemical stability data of HFC-134a and other non-chlorine containing refrigerant candidates; chemical stability data of CFC-12, HCFC-22, and other chlorine containing refrigerants; and accelerated thermal analytical techniques. Literature was catalogued and an abstract was written for each journal article or technical report. Several thermal analytical techniques were identified as candidates for development into accelerated screening tests. They are easy to operate, are common to most laboratories, and are expected to produce refrigerant/lubricant stability evaluations which agree with the current stability test ANSI/ASHRAE (American National Standards Institute/American Society of Heating, Refrigerating, and Air-Conditioning Engineers) Standard 97-1989, ``Sealed Glass Tube Method to Test the Chemical Stability of Material for Use Within Refrigerant Systems.`` Initial results of one accelerated thermal analytical candidate, DTA, are presented for CFC-12/mineral oil and HCFC-22/mineral oil combinations. Also described is research which will be performed in Part II to optimize the selected candidate.

Kauffman, R.

1993-04-01T23:59:59.000Z

394

Harold and Inge Marcus Department of Industrial and Manufacturing Engineering Fall 2010 Lubrication and Tool Wear in the Turning of Powdered Metal M2 Steel Valve  

E-Print Network [OSTI]

finish and tool wear was measured. Utilizing a One-Way ANOVA Test and Tukey's Test, the collected data-way ANOVA and Tukey's Tests were performed on the data in order to determine which lubricant performed done through Tukey's Test and general observation, that Microcut 3680 performed the best out

Demirel, Melik C.

395

NREL: Energy Analysis - Ethan Warner  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of WomenEventsTools

396

Biodiesel Impact on Engine Lubricant Dilution During Active Regeneration of Aftertreatment Systems  

SciTech Connect (OSTI)

Experiments were conducted with ultra low sulfur diesel (ULSD) and 20% biodiesel blends (B20) to compare lube oil dilution levels and lubricant properties for systems using late in-cylinder fuel injection for aftertreatment regeneration. Lube oil dilution was measured by gas chromatography (GC) following ASTM method D3524 to measure diesel content, by Fourier transform infrared (FTIR) spectrometry following a modified ASTM method D7371 to measure biodiesel content, and by a newly developed back-flush GC method that simultaneously measures both diesel and biodiesel. Heavy-duty (HD) engine testing was conducted on a 2008 6.7L Cummins ISB equipped with a diesel oxidation catalyst (DOC) and diesel particle filter (DPF). Stage one of engine testing consisted of 10 consecutive repeats of a forced DPF regeneration event. This continuous operation with late in-cylinder fuel injection served as a method to accelerate lube-oil dilution. Stage two consisted of 16 hours of normal engine operation over a transient test cycle, which created an opportunity for any accumulated fuel in the oil sump to evaporate. Light duty (LD) vehicle testing was conducted on a 2010 VW Jetta equipped with DOC, DPF and a NOx storage catalyst (NSC). Vehicle testing comprised approximately 4,000 miles of operation on a mileage-accumulation dynamometer (MAD) using the U.S. Environmental Protection Agency's Highway Fuel Economy Cycle because of the relatively low engine oil and exhaust temperatures, and high DPF regeneration frequency of this cycle relative to other cycles examined. Comparison of the lube oil dilution analysis methods suggests that D3524 does not measure dilution by biodiesel. The new back-flush GC method provided analysis for both diesel and biodiesel, in a shorter time and with lower detection limit. Thus all lube oil dilution results in this paper are based on this method. Analysis of the HD lube-oil samples showed only 1.5% to 1.6% fuel dilution for both fuels during continuous operation under DPF regeneration events. During the second stage of HD testing, the ULSD lube-oil dilution levels fell from 1.5% to 0.8%, while for B20, lube-oil dilution levels fell from 1.6% to 1.0%, but the fuel in the oil was 36% biodiesel. For the LD vehicle tests, the frequency of DPF regeneration events was observed to be the same for both ULSD and B20. No significant difference between the two fuels' estimated soot loading was detected by the engine control unit (ECU), although a 23% slower rate of increase in differential pressure across DPF was observed with B20. It appears that the ECU estimated soot loading is based on the engine map, not taking advantage of the lower engine-out particulate matter from the use of biodiesel. After 4,000 miles of LD vehicle operation with ULSD, fuel dilution in the lube-oil samples showed total dilution levels of 4.1% diesel. After 4,000 miles of operation with B20, total fuel in oil dilution levels were 6.7% consisting of 3.6% diesel fuel and 3.1% biodiesel. Extrapolation to the 10,000-mile oil drain interval with B20 suggests that the total fuel content in the oil could reach 12%, compared to 5% for operation on ULSD. Analysis of the oil samples also included measurement of total acid number, total base number, viscosity, soot, metals and wear scar; however, little difference in these parameters was noted.

He, X.; Williams, A.; Christensen, E.; Burton, J.; McCormick, R.

2011-12-01T23:59:59.000Z

397

Composition optimization of self-lubricating chromium carbide-based composite coatings for use to 760/sup 0/C  

SciTech Connect (OSTI)

This paper describes new compositions of self-lubricating coatings that contain chromium carbide. A bonded chromium carbide was used as the ''base stock'' because of the known excellent wear resistance and the chemical stability of chromium carbide. ''Additives'' were silver and barium fluoride/calcium fluoride eutectic. The coating constituents were treated as a termary system consisting of: (1) the bonded carbide base material, (2) silver, and (3) the eutectic. A study to determine the optimum amounts of each constituent was performed. The various compositions were prepared by powder blending. The blended powders were then plasma sprayed onto a superalloy substrates and diamond ground to the desired coating thickness. Friction and wear studies were performed at temperatures from 25 to 760/sup 0/C in helium and hydrogen. A variety of counterface materials were evaluated with the objective of discovering a satisfactory metal/coating sliding combination for potential applications such as piston ring/cylinder liner couples for Stirling engines.

DellaCorte, C.; Sliney, H.E.

1986-01-01T23:59:59.000Z

398

The Development of Open Water-lubricated Polycrystalline Diamond (PCD) Thrust Bearings for Use in Marine Hydrokinetic (MHK) Energy Machines  

SciTech Connect (OSTI)

Polycrstalline diamond (PCD) bearings were designed, fabricated and tested for marine-hydro-kinetic (MHK) application. Bearing efficiency and life were evaluated using the US Synthetic bearing test facility. Three iterations of design, build and test were conducted to arrive at the best bearing design. In addition life testing that simulated the starting and stopping and the loading of real MHK applications were performed. Results showed polycrystalline diamond bearings are well suited for MHK applications and that diamond bearing technology is TRL4 ready. Based on life tests results bearing life is estimated to be at least 11.5 years. A calculation method for evaluating the performance of diamond bearings of round geometry was also investigated and developed. Finally, as part of this effort test bearings were supplied free of charge to the University of Alaska for further evaluation. The University of Alaska test program will subject the diamond bearings to sediment laden lubricating fluid.

Cooley, Craig, H.; Khonsari, Michael,, M; Lingwall, Brent

2012-11-28T23:59:59.000Z

399

Solubility, viscosity and density of refrigerant/lubricant mixtures. Quarterly technical progress report, 1 January--31 March 1993  

SciTech Connect (OSTI)

This report presents results for low refrigerant concentration (70, 80, 90 and 100 weight percent lubricant) mixtures of the following fluids: CFC-12/ISO 32 naphthenic mineral oil, HCFC-22/ISO 32 naphthenic mineral oil, CFC-12/ISO 100 naphthenic mineral oil, HFC-134a/ISO 22 pentaerythritol ester mixed acid, HFC-134a/ISO 32 pentaerythritol ester mixed acid {number_sign}1, HFC-134a/ISO 68 pentaerythritol ester mixed acid, HFC-134a/ISO 100 pentaerythritol ester mixed acid, HFC-134a/ISO 32 pentaerythritol ester mixed acid {number_sign}2, HCFC-123/ISO 32 naphthenic mineral oil, HCFC-123/ISO 100 naphthenic mineral oil, HCFC-123/150 SUS alkylbenzene, HCFC-123/300 SUS alkylbenzene. These data have been reduced to engineering form and are presented in the form of a Daniel Chart. Equations are given along with statistical measures of goodness of fit.

Henderson, D.R.

1993-04-01T23:59:59.000Z

400

2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4 www.schulich.ucalgary.ca FOR IMMEDIATE RELEASE  

E-Print Network [OSTI]

Jadzinski (1st Prize) Paving Asphalt Modification with Tire Crumb Rubber with and without used lubricating oil Ameli Pereira (2nd Prize) Comparison of Direct Tension Test and the Ontario Ministry

Calgary, University of

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Large-scale Manufacturing of Nanoparticulate-based Lubrication Additives for Improved Energy Efficiency and Reduced Emissions  

SciTech Connect (OSTI)

This project was funded under the Department of Energy (DOE) Lab Call on Nanomanufacturing for Energy Efficiency and was directed toward the development of novel boron-based nanocolloidal lubrication additives for improving the friction and wear performance of machine components in a wide range of industrial and transportation applications. Argonne?s research team concentrated on the scientific and technical aspects of the project, using a range of state-of-the art analytical and tribological test facilities. Argonne has extensive past experience and expertise in working with boron-based solid and liquid lubrication additives, and has intellectual property ownership of several. There were two industrial collaborators in this project: Ashland Oil (represented by its Valvoline subsidiary) and Primet Precision Materials, Inc. (a leading nanomaterials company). There was also a sub-contract with the University of Arkansas. The major objectives of the project were to develop novel boron-based nanocolloidal lubrication additives and to optimize and verify their performance under boundary-lubricated sliding conditions. The project also tackled problems related to colloidal dispersion, larger-scale manufacturing and blending of nano-additives with base carrier oils. Other important issues dealt with in the project were determination of the optimum size and concentration of the particles and compatibility with various base fluids and/or additives. Boron-based particulate additives considered in this project included boric acid (H{sub 3}BO{sub 3}), hexagonal boron nitride (h-BN), boron oxide, and borax. As part of this project, we also explored a hybrid MoS{sub 2} + boric acid formulation approach for more effective lubrication and reported the results. The major motivation behind this work was to reduce energy losses related to friction and wear in a wide spectrum of mechanical systems and thereby reduce our dependence on imported oil. Growing concern over greenhouse gas emissions was also a major reason. The transportation sector alone consumes about 13 million barrels of crude oil per day (nearly 60% of which is imported) and is responsible for about 30% of the CO{sub 2} emission. When we consider manufacturing and other energy-intensive industrial processes, the amount of petroleum being consumed due to friction and wear reaches more than 20 million barrels per day (from official energy statistics, U.S. Energy Information Administration). Frequent remanufacturing and/or replacement of worn parts due to friction-, wear-, and scuffing-related degradations also consume significant amounts of energy and give rise to additional CO{sub 2} emission. Overall, the total annual cost of friction- and wear-related energy and material losses is estimated to be rather significant (i.e., as much as 5% of the gross national products of highly industrialized nations). It is projected that more than half of the total friction- and wear-related energy losses can be recovered by developing and implementing advanced friction and wear control technologies. In transportation vehicles alone, 10% to 15% of the fuel energy is spent to overcome friction. If we can cut down the friction- and wear-related energy losses by half, then we can potentially save up to 1.5 million barrels of petroleum per day. Also, less friction and wear would mean less energy consumption as well as less carbon emissions and hazardous byproducts being generated and released to the environment. New and more robust anti-friction and -wear control technologies may thus have a significant positive impact on improving the efficiency and environmental cleanliness of the current legacy fleet and future transportation systems. Effective control of friction in other industrial sectors such as manufacturing, power generation, mining and oil exploration, and agricultural and earthmoving machinery may bring more energy savings. Therefore, this project was timely and responsive to the energy and environmental objectives of DOE and our nation. In this project, most of the boron-based mater

Erdemir, Ali [Argonne National Laboratory] [Argonne National Laboratory

2013-09-26T23:59:59.000Z

402

Variability of hot mix asphalt produced with reclaimed asphalt pavement  

E-Print Network [OSTI]

/8"-No. 4 No. 4-No. 10 No. 10-No. 40 No. 40-No. 80 No. 80-No. 200 No. 200- Sum Sample Size 76 76 76 76 76 76 Mean Y 0. 0001 0. 1463 0. 3672 0. 2806 0. 1923 0. 0135 Stdev S 0. 0002 0. 0102 0. 0186 0. 0207 0. 0158 0. 0026 Y(1 ? Y) 0. 0001 0. 1249 0... No. 10 No. 40 No. 80 No. 200 Sample Size 76 76 76 76 76 76 Mean X 0. 9999 0. 8536 0. 4864 0. 2058 0. 0135 Stdev S 0. 0002 0. 0102 0. 0238 0. 0159 0. 0026 2C(1 ? X) 0. 0001 0. 1250 0. 2498 0. 1635 0. 0133 Variance S 2 6. 23E-08 1. 05E-04 5. 65E-04...

Yang, Guiqin

1999-01-01T23:59:59.000Z

403

The effect of counterface on the tribological performance of a high temperature solid lubricant composite from 25 to 650{degree}C  

SciTech Connect (OSTI)

The effect of counterface selection on the tribological performance of a Ag/BaF{sub 2}-CaF{sub 2} containing composite coating is studied. Ceramic (Al{sub 2}O{sub 3}) and metal (Inconel X-750) pins are slid against PS300 (a metal bonded chrome oxide coating with Ag and BaF{sub 2}/CaF{sub 2} lubricant additives) in a pin-on-disk tribometer at 25, 500 and 650 C. Compared to the ceramic counterface, the metal counterface generally exhibited lower friction and wear at 25 C but higher friction and wear at 650 C. Friction coefficients, for example, for the Al{sub 2}O{sub 3}/PS300 combination at 25 C were 0.64 compared to 0.23 for the Inconel/PS300 sliding couple. At 650 C the ranking was reversed. The Al{sub 2}O{sub 3}/PS300 combination gave a friction coefficient of 0.19 while the friction for the metal counterface increased slightly to about 0.3. Based upon these tribological results and other information found in the literature, it appears that the performance of each counterface/PS300 combination is affected by the ability of the solid lubricant additives to form an adequate transfer film. The effects of surface wettability and tribological compatibility are discussed in relation to the observed tribological results.

DellaCorte, C.

1996-05-01T23:59:59.000Z

404

Lubricated boride surfaces  

DOE Patents [OSTI]

Ultralow friction properties available through the annealation and subsequent cooling of various boron-containing substrates, articles and/or components.

Erdemir, Ali (Naperville, IL); Bindal, Cuma (Sakarya, TR); Fenske, G. R. (Downers Grove, IL)

1998-01-01T23:59:59.000Z

405

Lubricated boride surfaces  

DOE Patents [OSTI]

Ultralow friction properties are available through the annealation and subsequent cooling of various boron-containing substrates, articles and/or components. 16 figs.

Erdemir, A.; Bindal, C.; Fenske, G.R.

1998-11-24T23:59:59.000Z

406

Cracking Resistance of Asphalt Rubber Mix Versus  

E-Print Network [OSTI]

. crack length curve for KR #12;Load vs. CMOD 0.0 0.5 1.0 1.5 2.0 Crack mouth opening, mm 0 500 1000 1500 non-linear fracture mechanics Compliance approach R-Curve approach #12;Conventional Fatigue Testing factor R-Curve approach Resistance to initiation & growth of cracks Evaluates fracture toughness

Mobasher, Barzin

407

Asphalt, Concrete, and Turf Maintenance and Preservation  

E-Print Network [OSTI]

preventive maintenance, pavement distress and identification, and best practices for the maintenance Consultant WSB and Associates, Inc. 763-287-7184 jstewart@wsbeng.com #12;2 Preventive Maintenance Preventive maintenance and minor rehab, and is often used to repair environmental damage. Preventive maintenance narrows

Minnesota, University of

408

Multiscale approach for modeling hot mix asphalt  

E-Print Network [OSTI]

and is implemented in FE analysis using a user-defined material subroutine (UMAT). A fully implicit algorithm in time-step control is used to enhance the efficiency of the FE analysis. The FE model used in this study simulates experimental data and pavement section....

Dessouky, Samer Hassan

2005-08-29T23:59:59.000Z

409

Cool Asphalt Shingles | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate EarthEnergy Contractor&3-1Programof

410

ORIGINAL CONTRIBUTION Rheological characterization of asphalt  

E-Print Network [OSTI]

of asphaltenes dispersed in maltenes (Shen 1996). Asphaltenes comprise the hexane- or heptane-insoluble fraction

Mather, Patrick T.

411

Microstructural viscoplastic continuum model for asphalt concrete  

E-Print Network [OSTI]

(1984)?????????.? 18 Sides et al. (1985)????????????????? 19 Desai and Zhang (1987)??????????????.. 19 Sousa et al. (1993)????????????????... 20 Strategic Highway Research Program (SHRP) Report A-357 (Lytton et al. 1993)????????????????.. 22 Florea... (1994a, 1994b)???????????????. 23 Sousa and Weissman (1994)????????????... 24 Scarpas et al. (1997a)???????????????.. 25 Lu and Wright (1998)???????????????. 27 viii CHAPTER Page Seibi et al. (2001)????????????????? 27 Huang et al. (2002...

Tashman, Laith

2004-09-30T23:59:59.000Z

412

Accelerated screening methods for determining chemical and thermal stability of refrigerant-lubricant mixtures part II: Experimental comparisons and verification of methods. Quarterly technical progress report, October 1, 1993--March 31, 1994  

SciTech Connect (OSTI)

The research reported herein continued to concentrate on in situ conductivity measurements for development into an accelerated screening method for determining the chemical and thermal stabilities of refrigerant/lubricant mixtures. The work reported herein was performed in two phases. In the first phase, sealed tubes were prepared with steel catalysts and mixtures of CFC-12, HCFC-22, HFC-134a, and HFC-32/HFC-134a (zeotrope 30:70) refrigerants with oils as described in ANSI/ASHRAE Method 97-1989. In the second phase of work, modified sealed tubes, with and without steel catalysts present, were used to perform in situ conductivity measurements on mixtures of CFC-12 refrigerant with oils. The isothermal in situ conductivity measurements were compared with conventional tests, e.g., color measurements, gas chromatography, and trace metals to evaluate the capabilities of in situ conductivity for determining the chemical and thermal stabilities of refrigerant/lubricant mixtures. Other sets of tests were performed using ramped temperature conditions from 175{degrees}C (347{degrees}F) to 205{degrees}C (401{degrees}F) to evaluate the capabilities of in situ conductivity for detecting the onset of rapid degradation in CFC-12, HCFC-22 and HFC-134a refrigerant mixtures with naphthenic oil aged with and without steel catalysts present.

Kauffman, R. [Dayton Univ., OH (United States). Research Inst.

1994-07-01T23:59:59.000Z

413

Ionic Liquids as Novel Engine Lubricants or Lubricant Additives |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10 DOE VehicleStationaryLaboratory, TreeInvesting inDepartment

414

Polychlorinated biphenyls, 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (p,p{prime}-DDT) and 1,1-dichloro-2,2-bis(p-chlorophenyl)-ethylene (p,p{prime}-DDE) in human plasma related to fish consumption  

SciTech Connect (OSTI)

Fatty fish species, e.g., salmon and herring, in the Baltic Sea have high levels of polychlorinated biphenyls (PCBs) and 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (p,p{prime}-DDT), and its main metabolite: 1,1-dichloro-2,2-bis(p-chlorophenyl)-ethylene (p,p{prime}-DDE). We determined levels of 10 different PCB congeners, including non- and mono-ortho-PCBs, as well as DDT and DDE, in human blood plasma from 37 subjects with varying intake of fish (0-1 750 g/wk) from the Baltic Sea. With respect to all of the PCB congeners we investigated, as well as for DDT and DDE, there were statistically significant associations with fish intake. Thus, fish from the Baltic Sea is a major source of exposure to these compounds in Swedes. Polychlorinated dibenzo-p-dioxins (PCDD) and dibenzofurans (PCDF) had been determined earlier in 29 of the subjects. The PCB contribution to {open_quotes}dioxin-like{close_quotes} effects among high consumers of fish (calculated as Nordic TCDD equivalents) was almost 80%, whereas that from PCDD and PCDF was only 20%. 32 refs., 3 figs., 9 tabs.

Asplund, L.; Eriksson, U.; Jansson, B.; Wideqvist, U. [Stockholm Univ., Solna (Sweden); Svensson, B.G.; Nilsson, A.; Skerfving, S. [Univ. Hospital, Lund (Sweden); Jensen, S. [Stockholm Univ. (Sweden)

1994-11-01T23:59:59.000Z

415

Biofluid lubrication for artificial joints  

E-Print Network [OSTI]

through comparison of synthetic fluids (simulated body fluid and hyaluronic acid) as well as natural biofluids (from dogs, horses, and humans) in terms of viscosity and fluid shear stress. The nano-structured biofluids were formed using molecules having...

Pendelton, Alice Mae

2009-05-15T23:59:59.000Z

416

Mechanisms of mesothelial tissue lubrication  

E-Print Network [OSTI]

In the pleural space, sliding between the lung and chest wall induces shear stress that could damage the delicate mesothelial cells covering the tissue surfaces. Normally, the pleural space, which is filled with fluid, is ...

Lin, Judy Li-Wen

2006-01-01T23:59:59.000Z

417

Lubricants Activities | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department of Energy Low-Temperature Combustion DemonstratorEast Fork

418

Prediction of Asphalt Mixture Compactability from Mixture, Asphalt, and Aggregate Properties  

E-Print Network [OSTI]

. Predicted Plot of CV Neural Net of Entire Data Set for a ............................ 50 Figure 32. Predicted Plot of CV Neural Net of Entire Data Set for AV Nini ................... 51 Figure 33. a versus Predicted a... ................................................... 24 Table 5 HMA Mixing and Compaction Temperatures ............................................. 27 Table 6 Compaction Parameters a, c, and AV Nini ................................................... 38 Table 7 Compaction Parameters m1, m2...

Muras, Andrew J.

2010-07-14T23:59:59.000Z

419

BBR Asphalt mixture creep test BBR Asphalt mixture creep size effect  

E-Print Network [OSTI]

and two aggregates, compacted to 4% air voids PG binder Modification Aggregate 58-34 SBS Granite 58-34 SBS Limestone 58-28 Unmodified Granite 58-28 Unmodified Limestone 64-34 Elvaloy Granite 64-34 Elvaloy Limestone 64-28 Unmodified Granite 64-28 Unmodified Limestone 64-28 SBS Granite 64-28 SBS Limestone #12;Three

Minnesota, University of

420

The effects of asphalt binder oxidation on hot mix asphalt concrete mixture rheology and fatigue performance  

E-Print Network [OSTI]

. The decline in mixture fatigue life (determined using the calibrated mechanistic fatigue analysis approach with surface energy measurement) due to oxidation is significant. Pavement service life is dependent on the mixture, but can be estimated by a cumulative...

Jung, Sung Hoon

2009-06-02T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Effect of viscosity of asphalt on stress strain and volume change characteristics of asphaltic mixtures  

E-Print Network [OSTI]

~ter Setup 6 Cceprossion Test Results 7 Mold for Trianial Tost Specinens 19 21 23 28 Scuble Plunger Conpaction Using Uuiversal Testing Machine 29 9 Shotch of Trianial Coll 10 Trianial Call Used in tha Study ll Shetch of Voluae Change Measuring... received continuous study. The main aim should be to sicmlate the ccmpacticn usually obtained under field conditions. Saac investigators used double plunger static compaction under a particular load for a selected time (8, 14, 31, 32)i Kneading...

Gandhi, Poduru Mohandas Karamchand

1966-01-01T23:59:59.000Z

422

Application of the Bender equation of state to ethane  

E-Print Network [OSTI]

407. 9020 10. 6729 11. 6181 12. 5419 13. 4446 14. 3263 15. 1872 19. 1868 25. 7382 30. 5232 34. 9217 48. 4259 68. 7232 97. 5709 136. 9157 188. 8910 255. 8166 340. 2037 444. 7641 10. 9000 11. 8704 12. 8198 13. 7486 14. 6568 15. 5447...

Kumar, Rajinder Mohan

1975-01-01T23:59:59.000Z

423

Boreal forest fire emissions in fresh Canadian smoke plumes: C1-C10volatile organic compounds (VOCs), CO2, CO, NO2, NO, HCN andCH3CN  

E-Print Network [OSTI]

propene, acetone, benzene, propane and ?-pinene (Table 1).cyanide Acetonitrile Ethane Propane i-Butane n-Butane i-= Ethane Ethane Ethane Ethane Propane Propane Propane ARCTAS

2011-01-01T23:59:59.000Z

424

Asphalt landscape after all : residual suburban surface as public infrastructure  

E-Print Network [OSTI]

The thesis proposes a hybridized commercial retail strip inserted into a residual suburban condition as a manner of investigating the latent potential of suburban logic, both its constituent elements and its formal rules ...

O'Connor, Joseph Michael, M. Arch. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

425

Settling of rubber particles in asphalt-rubber blends  

E-Print Network [OSTI]

-rubber weights and the undissolved rubber weights of sample 10/27/97 . . . 38 II-8 Schematic of the Superpave~ test equipment. . . . . . . 40 11-9 The Superpave? performance grade specification. . . . . Ill-l The GPC chromatogram of neat Exxon AC-10... Corhett Results Asphaltenes Saturates Naphthene Aromatics Polar Aromatics Exxon AC-10 10 1% 11 6% 46. 2% 30. 7% Resin D 3. 5% 17. 8% 54. 8% 21. 6% Vacuum Tower Bottom 17. 3% 20. 2% 45. 2% 18 4o/(, SHRP ABM-1' 7. 1% 9, 0% 29 6% 52...

Wattanachai, Piyachat

1998-01-01T23:59:59.000Z

426

Evaluation of Laboratory Conditioning Protocols for Warm-Mix Asphalt  

E-Print Network [OSTI]

orientation of field cores and on-site PMLC specimens were evaluated using the Dynamic Shear Rheometer (DSR) (AASHTO T315) and image analysis techniques, respectively. In addition, mixture stiffness in a wet condition was evaluated using the Hamburg Wheel...

Yin, Fan 1990-

2012-10-26T23:59:59.000Z

427

asphalt pavement materials: Topics by E-print Network  

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

pavement materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Cost-Effectiveness of Crack Sealing...

428

Use of VFDs on Asphalt Plant Induced Draft Fans  

E-Print Network [OSTI]

paybacks were 3-5 years before utility incentives. In the 10 plants evaluated, the ID fans accounted for as much as 30% of the total plant electrical consumption. In the majority of these plants the outlet dampers were typically 50%-60% closed. Fan motors...

Anderson, G. R.; Case, P. L.; Lowery, J.

2005-01-01T23:59:59.000Z

429

Viscoelastic{Viscoplastic Damage Model for Asphalt Concrete  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.2.1 Yield surface . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.2.2 Viscoplastic potential energy function . . . . . . . . . . . . . . 23 2.2.3 Hardening function . . . . . . . . . . . . . . . . . . . . . . . . 23 2.3 Numerical... viii LIST OF FIGURES FIGURE Page 1.1 Moisture-induced damage in pavements results in raveling and potholing 4 1.2 Adhesive and cohesive failure . . . . . . . . . . . . . . . . . . . . . . . 5 1.3 Damaged and e ective undamaged con gurations...

Graham, Michael A.

2010-10-12T23:59:59.000Z

430

Evaluation of moisture damage within asphalt concrete mixes  

E-Print Network [OSTI]

Pavements are a major part of the infrastructure in the United States. Moisture damage of these pavements is a significant problem. To predict and prevent this kind of moisture damage a great deal of research has been performed on this issue in past...

Shah, Brij D.

2004-09-30T23:59:59.000Z

431

Complex Modulus Prediction of Asphalt Concrete Pavement Cores  

E-Print Network [OSTI]

Complex modulus is one of the key parameters in the Mechanistic-Empirical Pavement Design Guide (MEPDG). The purpose of this study is to implement an accurate and high-efficiency mechanical method to measure and calculate the complex modulus...

Ling, Meng

2013-12-02T23:59:59.000Z

432

Fatigue Resistance of Asphalt Mixtures Affected by Water Vapor Movement  

E-Print Network [OSTI]

This dissertation has two key objectives: the first objective is to develop a method of predicting and quantifying the amount of water that can enter into a pavement system by vapor transport; the second objective is to identify to which extent...

Tong, Yunwei

2013-11-08T23:59:59.000Z

433

asphalt wearing courses: Topics by E-print Network  

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

and Dissertations Summary: ??The mechanical properties and wear behaviour of B(SiC) fibre-reinforced metal matrix composites (MMCs) and aluminium alloy (2014) produced by...

434

Relationship between composition and performance of asphalt recycling agents  

E-Print Network [OSTI]

of oxidation. It was determined that asphaltenes had a negative effect both on the viscosity and the rate of increase of viscosity, trace metals had no obvious effect, waxes had a negative effect on viscosity, and oils had a positive effect on viscosity...

Peterson, Gerald Dean

1993-01-01T23:59:59.000Z

435

Effect of airblowing on the durability of asphalt paving cements  

E-Print Network [OSTI]

to become more pronounced as the environments harden the material. The problem is to decide at what rate of shear or shearing stress should the viscosity be calculated so that changes in consistency can be most satisfactorily determined and compared... in this investigation were calcu- lated by both methods. Generally, using both methods it was found that the same trends in comparative data exist; only the magnitude of the viscosities and relative viscosities change. For simplification and to avoid confusion -2...

Tolson, Ronald Geoffrey

1962-01-01T23:59:59.000Z

436

Study of properties of sand asphalt using a torsional rheometer  

E-Print Network [OSTI]

multiple natural configurations (multiple stress free states) to derive the constitutive equations. Recently an Orthogonal Rheometer was built to characterize the granular solids by Gupta and Rajagopal which was later used by Baek in the torsional mode...

Kasula, Lavan Kumar Reddy

2004-11-15T23:59:59.000Z

437

Energy Efficiency Opportunities in the Stone and Asphalt Industry  

E-Print Network [OSTI]

Industries of the Future (DOE-IOF) initiative. In addition to being highly energy intensive, stone crushing currently produces 42% of the total material consumed by weight in the US, which is mainly used as highway aggregates. Based on GDP growth... Symon4-1/2 HP300 061 150 220 270 100 0.50 0.63 270 161 150 220 100% 100% 3/4 proc 220 150 427 703 Daily Energy Consumption Entering Screenhouse 1501 Run Hours per Day 15.5 Daily Production Stage kW kWh/dy Product Tons/dy Model Notes Primary 240 3,000 3...

Moray, S.; Throop, N.; Seryak, J.; Schmidt, C.; Fisher, C.; D'Antonio, M.

2006-01-01T23:59:59.000Z

438

Effect of density on the stability of asphaltic concrete mixtures  

E-Print Network [OSTI]

Test, The Rarohall Stabi- lity Tost as8 The Califorsia Co beeiemtor Tost, fer Series I 8 as Chtai ass by 'Tbo Marshall Cosyae- tios Preoo8lro ~ ~ ~ s ~ ~ ~ ~ ~ ~ ~ ~ ~ Rela4ioaship boteeea Doss ity aas Sta- bility as RoaeereS by Tbs Rroea... Stability Tost, the Marshall Rishi lity Test as& Tho CaliforaLa Cshesie astor Test, for Series L 8 as Cbtaiaed by The Tease RLShoay Royartseat Cea- Ssotioa Pfiso8ere ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Relatioaehiy beieses Qeasity as8 8ta- bLlity as Reassros...

Subbaraju, Bhupatiraju

1953-01-01T23:59:59.000Z

439

Measurements of moisture suction in hot mix asphalt mixes  

E-Print Network [OSTI]

is to relate suction measurements to physical and chemical properties of the mixtures. The objectives were achieved in two phases. In the first phase, the total suction was measured in HMA specimens with different types of aggregates (limestone and granite...

Kassem, Emad Abdel-Rahman

2006-10-30T23:59:59.000Z

440

Methodology for predicting asphalt concrete overlay life against reflection cracking  

E-Print Network [OSTI]

of thermal expansion = change in temperature E K - (so gT) vc/h F3(c/h) +(I-u ) By defining, !40) (41) Jc/h F3(c/h) T Kt (42 ) 29 ~Summa r The proper variables to be used in a design equation and the form of the equation to be used is best... obtained are presented in this chapter. The stress intensity factor computations were carr1ed out for different crack-tip positions and for different levels of aggregate interlock act1on. These results were obtained for each of the three mechanisms...

Jayawickrama, Priyantha Warnasuriya

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Toxic species emissions from controlled combustion of selected paving asphalts  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . List of Materials Analyzed . Size Ranges and Effective Cut Off Diameters of the Andersen 2000 Inc. Cascade Impactor. . . . , . . . , . . . . . . . . . . . . . . . . . . 35 Gas Analysis Results for Material AC-IOA Using Method 1. . 38 Table VI. Gas... Analysis Results for Material AC-10B Using Method I . . 39 Table VII. Gas Analysis Results for Material AC-10C Using Method I . . 40 Table VIII. Gas Analysis Results for Material AC-5B Using Method I . . . 41 Table IX. Gas Analysis Results for Material...

Mendez, Carlos Luis

1993-01-01T23:59:59.000Z

442

New Cool Roof Coatings and Affordable Cool Color Asphalt  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S i DOETowardExecutiveRate principlesPierpontNewNew CleanofNewNew

443

Fuel & Lubricant Technologies R&D  

Broader source: Energy.gov [DOE]

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

444

Collaborative Lubricating Oil Study on Emissions  

E-Print Network [OSTI]

, and compressed natural gas. Contract Number: 50006043 Contractor: California Air Resources Board Contract

445

Notes 00. Introduction to Hydrodynamic Lubrication  

E-Print Network [OSTI]

/product/448_448.htm Portable Generator http://www.notebookre view.com/ http://www.wir efly.com/ Mobile electronic equipment Large Scale Combustor http://www.uavpayloads.com/pr oducts.php4 UAV Micro Gas Turbine http://www.m-dot.com/page8.html Application... hpcompressozr.pdf ASME Paper No. GT2002-30404 Honeywell, Hydrogen and Fuel Cells Merit Review Auto engine and part / Industrial compressor Distribute power (Gas turbine &Fuel Cell Hybrid) MICRO GAS TURBINES 100 Turbec, ABB & Volvo 70, 250 Ingersoll Rand...

San Andres, Luis

2010-01-01T23:59:59.000Z

446

Lubrication Behavior of Biolubricants and Antiwear Performance...  

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

11:00 AM - 12:00 PM Yan Zhou, Texas A&M University, College Station Materials Science and Technology Division Seminar High Temperature Materials Laboratory (Building 4515), Room...

447

National Agricultural-Based Lubricants (NABL) Center  

SciTech Connect (OSTI)

This project, while defined as a one year project from September 30, 2012 September 30, 2013, was a continuation of a number of tasks that were defined in previous years. Those tasks were performed and were finalized in this period. The UNI-NABL Center, which has been in operation in various forms since 1991, has closed its facilities since September 2013 and will be phasing out in June 2014. This report covers the individual tasks that were identified in the previous reports and provides closure to each task in its final stage.

Honary, Lou

2013-09-30T23:59:59.000Z

448

Turbocharger bearing retention and lubrication system  

SciTech Connect (OSTI)

This patent describes exhausts gas driven turbocharger. It comprises a housing, a shaft within the housing having a longitudinal axis of rotation and a pair of ends, a compressor wheel mounted within the housing on one end of the shaft for rotation therewith, a turbine wheel mounted within the housing on the other end of the shaft for rotation therewith, means for communicating air to the compressor wheel, means for communicating exhaust gas to the turbine wheel to cause the latter to rotate the shaft and the compressor wheel mounted thereon to compress the air communicated to the compressor wheel, and bearing means mounting the shaft for rotation relative to the housing, the bearing means including a bearing outer ring, a bearing inner ring, and ball bearing elements supporting the bearing outer ring on the bearing inner ring, a bearing locating aperture in the bearing outer ring, and an elongated bearing location pin having a longitudinal axis of symmetry extending transversely to the longitudinal axis of the shaft.

Gutknecht, D.A.

1991-12-31T23:59:59.000Z

449

Fuel & Lubricant Technologies | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional ElectricalEnergy Frozen Telescope Looks to Ends of the

450

Fuel & Lubricant Technologies | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional ElectricalEnergy Frozen Telescope Looks to Ends of

451

Vehicle Technologies Office: Lubricants | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf The 2012Nuclear GuideReport |(GATE) | Department ofEnergy

452

Boundary Layer Lubrication | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchTheMarketing,Energy andNews and updatesStudy | Department of

453

NOVEL LUBRICANT ADDITIVES - Energy Innovation Portal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species. |RPSEA FinalNOTICE Find More

454

Boundary Layer Lubrication Mechanisms | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: ScopeDepartment1, 2011DepartmentBosch PowertrainBoulder1 DOE

455

Boundary Layer Lubrication Mechanisms | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: ScopeDepartment1, 2011DepartmentBosch PowertrainBoulder1 DOE0

456

Boundary Layer Lubrication | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: ScopeDepartment1, 2011DepartmentBosch PowertrainBoulder12009

457

fuels and lubricants | netl.doe.gov  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched5 Industrial Carbon Capture andDeepwaterfors | National9 On StratusFuels and

458

Vehicle Technologies Office: Fuels and Lubricants | Department...  

Energy Savers [EERE]

engines The Bioenergy Office (which focuses on production of biofuels) and Hydrogen and Fuel Cells Program (which focuses on the use of hydrogen) to maximize collaboration and...

459

Nonlinear Dynamics of Longitudinal Ground Vehicle Traction  

E-Print Network [OSTI]

asphalt b) Wet asphalt c) Gravel d) Packed Snow Nonlinear Dynamics of Longitudinal Ground Vehicle Traction

Shaw, Steven W.

460

Removing Stains from Washable Fabrics.  

E-Print Network [OSTI]

Page Numbers Stain Page Numbers Acne medicine Blueberry Special 9 Wet 8 Adhesive tape Dye 8 Special 9 Butter Alcoholic beverages Dry 8 Wet 8 Oil 8 Tannin 8 Calamine lotion Asphalt Combination 8 Combination 8 Dye 8 Dye 8 Candle wax Automotive... the most gentle to the most harsh, so always stop treatments as soon as the stain has been removed. Dry Type Stains Dissolve the stain with a grease solvent. Lubricate the stain with dry spotter, coconut oil or mineral oil (sold in health food...

Beard, Ann Vanderpoorten

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lubricants asphalt ethane" 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

Reflective Cracking Study: Second-Level Analysis Report  

E-Print Network [OSTI]

in asphalt concrete overlays under HVS testing conditions,asphalt concrete was derived from laboratory testing at 20Cthe asphalt concrete. Summary of Testing on the Underlying

Jones, David; Tsai, Bor-Wen; Ullidtz, Per; Wu, R.; Harvey, John T; Monismith, Carl L.

2008-01-01T23:59:59.000Z

462

Reflective Cracking Study: Initial Construction, Phase 1 HVS Testing, and Overlay Construction  

E-Print Network [OSTI]

Testing on the Asphalt Concrete FWD testing was conducted onin asphalt concrete modulus after HVS testing on SectionsTesting on the Asphalt Concrete ..

Bejarano, Manuel O.; Jones, David; Morton, Bruce S.; Scheffy, Clark

2008-01-01T23:59:59.000Z

463

Reflective Cracking Study: Backcalculation of HVS Test Section Deflection Measurements  

E-Print Network [OSTI]

2 HVS testing generally damaged the asphalt concrete layers2 HVS testing generally damaged the asphalt concrete layers2 HVS testing generally damaged the asphalt concrete layers

Lu, Qing; Jones, David; Harvey, John T

2008-01-01T23:59:59.000Z

464

ISAP 2012 Brosseaud et al: High modulus asphalt with high rate of recycling 1/13 High modulus asphalt mixes with high rate of RA: what does  

E-Print Network [OSTI]

and structural performances (infrared spectroscopy, Size Exclusion Chromatography, IATROSCAN, asphaltenes content

Paris-Sud XI, Université de

465

RIS-M-2366 KINETICS OF THE REACTION OF HYDROXYL RADICALS WITH ETHANE AND  

E-Print Network [OSTI]

produced by pulse radiolysis of water vapour and the kinetics of OH was followed by kinetic spectroscopy studied at atmospheric pressure and over the temperature range 300-400 K. Hydroxyl radicals were produced by pulse radiolysis of water vapour and the decay rate was studied by monitoring the tran- sient light

466

MOLECULAR SIMULATION OF PHASE EQUILIBRIA FOR WATER -METHANE AND WATER -ETHANE MIXTURES  

E-Print Network [OSTI]

charge (SPC) and extended-SPC (SPC/E) models to simulate the phase equilibria and other thermodynamic

467

Adaptation of US Maize to Temperature Variations Ethan E. Butler1  

E-Print Network [OSTI]

@fas.harvard.edu High temperatures are associated with reduced crop yields1,2 , and predictions for future warming3 have maize is locally adapted to hot temperatures across U.S. counties. Using this spatial adaptation. This result does not ac- count for possible changes in temperature variability or water resources, nor does

Huybers, Peter

468

The oxidative dehydrogenation of ethane with nitrous oxide by molybdenum oxide supported by silica gel  

E-Print Network [OSTI]

for C 2BA Eormation ~Tt, 's C H produced, pmole 1-run-150-min total 5-run-150 min total 280~ 27. 1 33. 6 300~ expt. not performed 62. S 350' 96. 0 207. 0 a Recirculating System; 3. 0 g catalyst& Pretreatment: X=0. 25 TABLE 2 a Product... Distributions at Selected Temperatures t 'C Mole % Products 280c 300' (CHA) (CO2) (C 2HA) 4% 16%, 80s 4% 18% 78% 350 c 6% 21% 73% a Recirculating System; 3. 0 g catalyst| Pretreatment: )%, =0. 25 W V Fig. 10. The dependence of activity for C 2He...

Ward, Mark Branham

1977-01-01T23:59:59.000Z

469

Titan's Carbon Budget and the Case of the Missing Ethane Eric H. Wilson*,,  

E-Print Network [OSTI]

-8099, Department of Atmospheric, Oceanic, and Space Sciences, UniVersity of Michigan, Ann Arbor, Michigan 48109 water ice and dark tholin material with the possibility of some condensed hydrocarbons and nitriles.13

Atreya, Sushil

470

DOI: 10.1002/cbic.200500261 Direct Conversion of Ethane to  

E-Print Network [OSTI]

for bioconversion and process optimization, and therefore have proven to be of little practical use for pro- ducing as propane.[8­10] Communication between the heme and reduc- tase domains of BM-3 is substrate

Arnold, Frances H.

471

3 Model Organisms in the Study of Development and Disease ETHAN BIER AND WILLIAM MCGINNIS  

E-Print Network [OSTI]

and invertebrates. This ancestor can be imagined as an advanced worm-like or primitive shrimp-like creature which for identifying and understanding genes that are altered in heritable human diseases and (2) the functions of many and inverte- brates. A systematic analysis of human disease gene homologs in Drosophila supports this view

McGinnis, William

472

Selective adsorption of ethylene over ethane and propylene over propane in  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearchScheduled System OutagesNewsMaterials Center atwiththe

473

Large-Scale Computational Screening of Zeolites for Ethane/Ethene  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region serviceMission Statement

474

Tribological Properties of Nanoparticle-Based Lubrication Systems  

E-Print Network [OSTI]

career. To my aunt, Baria, whose endless support helped shape the person I have become. iv ACKNOWLEDGEMENTS I would like to acknowledge the contribution and extensive knowledge of Dr. Mustafa Akbulut, whose patience and guidance were... of nanoparticles size ............................................................................. 44 2.7.2 Nanostructure and shape ................................................................................. 46 2.7.3 Surface structure...

Kheireddin, Bassem

2013-08-02T23:59:59.000Z

475

Smart Surface and Lubrication Engineering show Promise for Gearbox...  

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

bearings, fatigue cracking, and scuffing, as well as hydrogen embrittlement and tribo-corrosion. The approach proved successful as the team's application of the ultra-fast boriding...

476

Auto/Steel Partnership: Hydroforming Materials and Lubricant...  

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

Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. lm27heimbuch.pdf More Documents & Publications FY 2008 Progress Report for Lightweighting...

477

Large-Scale Manufacturing of Nanoparticle-Based Lubrication Additives...  

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

Merit Review 2014: Advanced Nanolubricants for Improved Energy Efficiency and Reduced Emissions in Engines New and Emerging Technologies FrictionWear Parasitic Energy Losses...

478

Collaborative Lubricating Oil Study on Emissions (CLOSE Project...  

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

1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ace046lawson2011...

479

Collaborative Lubricating Oil Study on Emissions (CLOSE Project...  

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

0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. ace046lawson2010...

480

Modeling piston secondary motion and skirt lubrication with applications  

E-Print Network [OSTI]

The interest in reducing emission and improving engine efficiency has become a major push in industry, due to upcoming stricter regulations. A great deal of attention has been given to the frictional losses due to piston ...

Totaro, Pasquale (Pasquale Pio)

2014-01-01T23:59:59.000Z

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


481

Examining Effects of Lubricant Composition in Engine Component...  

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

work synergistically with advanced engine technologies to meet a goal of improving mechanical efficiency by 10 percent. deer12wong.pdf More Documents & Publications Vehicle...

482

Controlled Experiments on the Effects of Lubricant/Additive ...  

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

P compounds Ca Ca 900 nm Ash Properties 5 m 5 m Current State of Research DPF Un-accelerated Ash Loading Studies (Fleet Testing) Cummins, BP, JM - 9 Trucks w 160k miles each...

483

Friction Modeling for Lubricated Engine and Drivetrain Components |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Electrical Resistivity Structure |Accomplishments

484

Friction of Steel Sliding Under Boundary Lubrication Regime in Commercial  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Electrical Resistivity StructureDepartment of EnergyGear Oils

485

Fuels & Lubricants R&D | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional ElectricalEnergyQuality ChallengesFueling U.S. Light

486

Fuels and Lubricants to Support Advanced Diesel Engine Technology |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional ElectricalEnergyQuality ChallengesFueling U.S.Engines

487

Characteristics and Effects of Lubricant Additive Chemistry and Exhaust  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Day with SecretaryDerivedof&6.

488

Collaborative Lubricating Oil Study on Emissions (CLOSE Project) |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Codes and Standards TechnicalDepartment of Energy

489

Collaborative Lubricating Oil Study on Emissions (CLOSE Project) |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Codes and Standards TechnicalDepartment of

490

Collaborative Lubricating Oil Study on Emissions (CLOSE) Project |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Codes and Standards TechnicalDepartment ofDepartment

491

Correlations Between Metallic Lubricant Additive Species in the Ring Pack  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate EarthEnergyDistrict EnergyCensus,Core5into PARSand Ash

492

Natural Oils - The Next Generation of Diesel Engine Lubricants?  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAXBalanced Scorecard Federal2Energy Second Quarter Report 2014Vehicles »Oils -

493

2014 Annual Merit Review Results Report - Fuels & Lubricants Technologies |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3 Beryllium-Associated Worker Registry SummaryInvestigators, Projects,

494

Natural Oils - The Next Generation of Diesel Engine Lubricants? |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational ScienceEnergy - ThirdDepartment of

495

Notes 01. The fundamental assumptions and equations of lubrication theory  

E-Print Network [OSTI]

nuclear plants. g183 Electric power generation by industrial users, such as paper mills Specifications & Approvals Mobil DTE 790 Series meets or exceeds the following industry specifications 797 798 Alstom Power Sweden MAT 812101 X Alstom Power Sweden MAT...

San Andres, Luis

2009-01-01T23:59:59.000Z

496

Lubricating properties of ashless thiophosphates and dithiophosphates based on isononylphenol  

SciTech Connect (OSTI)

Nitrogen-containing thiophosphates and dithiophosphates that are prepared from commercial isooctylphenol manifest antiwear properties in mineral oils. The structure of the hydrocarbon radical is a major factor in determining the effectiveness of these additives. Isooctylphenol that is obtained by alkylating phenol with polymer distillate in the presence of the cation exchange resin KU-2-8 as a catalyst is a wide fraction distilling at 100-180{degrees}C under a residual pressure of 667 Pa; dithiophosphate additives prepared from this material consist of mixed dithiophosphates with monosubstituted and partially substituted C{sub 4}-C{sub 16} alkylphenyl radicals. Because of the nonimiformity of structure of such additives, they are readily soluble and highly effective in naphthenic-aromatic base mineral oils. However, the presence of phenol and butylphenols in the alkylphenol has deleterious effects on the additive quality, including a reduction of its solubility in mineral oils. In order to expand the raw material base and improve the additive quality, we have synthesized and investigated certain ashless additives containing sulfur, phosphorus, and nitrogen, prepared with isononylphenol. This isononylphenol distills within the 120-130{degrees}C interval at 400 Pa; it consists of a mixture of p-isononylphenols in which the iso-C{sub 9} alkyl groups vary in structure. We have carried out a comparison of the functional properties of thiophosphate and dithiophosphate additives based on isooctylphenol and isononylphenol. As antiwear and antifriction additives for M-11 base oil, we investigated diethylenetriamine salts of dithiophosphoric acids based on isononylphenol (A) and isooctylphenol (A{prime}), and also amidothiophosphates based on isononylphenol (B, C) and isooctylphenol (ATF additive). The ability of these additives to reduce the wear of rubbing pairs was determined.

Tsygankova, O.E.; Parfenova, V.A.; Belov, P.S.

1994-07-01T23:59:59.000Z

497

Modeling piston skirt lubrication in internal combustion engines  

E-Print Network [OSTI]

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

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

2012-01-01T23:59:59.000Z

498

Force Field Parameter Estimation of Functional Perfluoropolyether Lubricants  

SciTech Connect (OSTI)

The head disk interface in hard disk drive can be considered one of the hierarchical multiscale systems, which require the hybridization of multiscale modeling methods with coarse-graining procedure. However, the fundamental force field parameters are required to enable the coarse-graining procedure from atomistic/molecular scale to mesoscale models .In this paper, we investigate beyond molecular level and perform ab-initio calculations to obtain the force field parameters. Intramolecular force field parameters for the Zdol and Ztetraol were evaluated with truncated PFPE molecules to allow for feasible quantum calculations while still maintaining the characteristic chemical structure of the end groups. Using the harmonic approximation to the bond and angle potentials, the parameters were derived from the Hessian matrix, and the dihedral force constants are fit to the torsional energy profiles generated by a series of constrained molecular geometry optimization.

Smith, R.; Chung, P.S; Steckel, J.A.; Jhon, M.S; Biegler, L.T.

2011-01-01T23:59:59.000Z

499

Force Field Parameter Estimation of Functional Perfluoropolyether Lubricants  

SciTech Connect (OSTI)

The head disk interface in a hard disk drive can be considered to be one of the hierarchical multiscale systems, which require the hybridization of multiscale modeling methods with coarse-graining procedure. However, the fundamental force field parameters are required to enable the coarse-graining procedure from atomistic/molecular scale to mesoscale models. In this paper, we investigate beyond molecular level and perform ab initio calculations to obtain the force field parameters. Intramolecular force field parameters for Zdol and Ztetraol were evaluated with truncated PFPE molecules to allow for feasible quantum calculations while still maintaining the characteristic chemical structure of the end groups. Using the harmonic approximation to the bond and angle potentials, the parameters were derived from the Hessian matrix, and the dihedral force constants are fit to the torsional energy profiles generated by a series of constrained molecular geometry optimization.

Smith, R.; Chung, P.S.; Steckel, J; Jhon, M.S.; Biegler, L.T.

2011-01-01T23:59:59.000Z

500

Ionic Liquids as Novel Lubricant Additives for Next-Generation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformation for andFuel-Efficient Engines | ornl.gov Ionic