examining effects of lubricant composition
TRANSCRIPT
-
8/10/2019 Examining Effects of Lubricant Composition
1/55
1
Examining Effects of Lubricant Composition inEngine Component Systems in Pursuit of Enhanced
Efficiency under Environmental Constraints
Victor W. Wong
Massachusetts Institute of Technology
Cambridge, MA
2012 Directions in Engine-Efficiency and
Emissions Research Conference October 19, 2012
Dearborn, MI
-
8/10/2019 Examining Effects of Lubricant Composition
2/55
Friction/efficiency improvement in enginesrequire developments in multiple areas:
Mechanical Design,Operation:
- Power density- Sliding, rotational speeds- Component dynamics;
contacts and loading- Fluid-film vs metal-metal- Distortions, clearances,
film thicknesses
Material and SurfaceCharacteristics:
- Coatings, roughness,
textures, dimples, etc .
LubricantFormulation
- Base oil, additives:Advanced control ofin-situ propertiesand composition
Engine-ComponentLubrication/FrictionAnalysis and Design
1. Wear/Durability:- Film Thickness
2. Emissions/OilConsumption
3. Cost: Material,manufacturing,user operating cost
CONSTRAINTS:
Lubricant
appears tobe the keylink tomaterial &mechanicaldesign
-
8/10/2019 Examining Effects of Lubricant Composition
3/55
Project: Lubricant Formulations to Enhance EngineEfficiency in Modern Internal Combustion Engines
Cooperative Agreement #DE-EE0005445 (2011-2014)
Lubricant formulation is an essential strategy in overall friction reduction and engine efficiency improvement
LubricantFormulation
- Base-oil, additives:requirements,
optimization
Goal: 10%mechanicalefficiencyimprovement
DOE-NETL Current Program
Mechanical Design, component micro-geometries, operation:
Material and Surface Characteristics:
Among other approaches investigated previously/elsewhere:
-
8/10/2019 Examining Effects of Lubricant Composition
4/55
Base Oil
Additives(20-30%)
Our approach is to examine strategic control of lubricantproperties and composition in engine in subsystems
1. Base Oil: HCs providingbasic lubrication API Groups: I, II (lowS), III (low S, high VI),IV: synthetic, V other
2. Additives:- Detergents- Dispersants- Anti-Wear
- Anti-oxidants- VI and Friction Modifiers- Anti-foam- Pour-point depressants
- Extreme-pressure wear, etc
-
8/10/2019 Examining Effects of Lubricant Composition
5/55
1. Controlling oil/additive properties in local areas thatmatter most in specific engine subsystems
2. Interfacing with engine technologies that affect in-
situ effective lubricant properties in action
3. Optimizing lubricant formulation: the completepackage viscous/boundary friction, wear
4. Ascertaining compatibility with lubricant/additive-emission control system: lubricant/additives affect
fuel economy of engine operation beyond friction
Four lubricant technical themes that aim to worksynergistically to advanced engine technologies:
-
8/10/2019 Examining Effects of Lubricant Composition
6/55
1. Controlling oil/additive properties in local areas thatmatter most in specific engine subsystems
2. Interfacing with engine technologies that affect in-
situ effective fuel & lubricant properties in action
3. Optimizing lubricant formulation: the completepackage viscous/boundary friction, wear
4. Ascertaining compatibility with lubricant/additive-emission control system: lubricant/additives affect
fuel economy of engine operation beyond friction
Four lubricant technical themes that aim to worksynergistically to advanced engine technologies:
-
8/10/2019 Examining Effects of Lubricant Composition
7/55
Affecting: Additive effective concentrations in ring pack/valvetrainversus in sump
Residence time, oil supply/replenishment, vaporization
Overhead - Cam
Sump/Crankcase oil
LubeFilter
pump
TurboSeals
Valve stem seals ATS
Aftertreat - ment System
( Blowby PCV) Power -
CylinderLoop
MainLoop
Filter Loop
Ash and OilTo Exhaust
Oil Circulation
in Engine
Combustion
Valvetrain
Sump/Crankcase oil
LubeFilter
pump
TurboSeals TurboSeals
Valve stem seals ATS
Aftertreat - ment System
( Blowby PCV) Power -
CylinderLoop
MainLoop
Filter Loop
Ash and OilTo Exhaust
Oil Circulation
in Engine
Combustion
Lubricant behavior inside the engine: There are manyprocesses between oil in the sump and oil in the upper-ring-pack/ valvetrain that affect the oil and additive conditions
-
8/10/2019 Examining Effects of Lubricant Composition
8/55
Oil Supply:Jets, Splash
Oilaccumulationon pistonbevel/skirt
Ring-Pack oilaccumulation
Fuel dilution
Combustionproducts,acids,particulates
Vaporization
T r a n s p o r t u p a n
d d o w n
t h e
l i n e r
Hot
Cooler
Mixing,entrainment,degradation ofoil within ring-pack, piston
Power Cylinder Transport Loop
Oil properties at critical surfaces are different from sump composition
(NOT TO SCALE)
-
8/10/2019 Examining Effects of Lubricant Composition
9/55
Changes of lubricant species also bylubricant-surface interfacial processes
Adsorption onSurfaces
Tribochemical
Wear-filmproducts
ProcessesAnti-wear film formation
Wear process
Anti-Corrosion, DepositsFriction Modification
SpeciesZn, B, S, P, compounds
Fe, Al
Ca, MgOrganic molecules -GMO
-
8/10/2019 Examining Effects of Lubricant Composition
10/55
L i n e r
O i l F i l m
Poor OilRefreshment
TDC of TopRing
TDC of OCR
PISTON
OilSupply
Vaporization
{
Vaporization Processes:
{Vaporizationof oil fromring-packand pistoncrevices
convection
s
: oil vapour surface density
: oil vapour free stream density
( ) j j m j j jMgen h S s=
Heat transfer analogy:
Mutli-Species: by carbonnumbers
In various regions: crown land,ring-pack, piston crevices, and
on liner
-
8/10/2019 Examining Effects of Lubricant Composition
11/55
Ring Pack Sampling System
Sloan Automotive Laboratory
-
8/10/2019 Examining Effects of Lubricant Composition
12/55
Top Ring Zone Enrichment
Sloan Automotive Laboratory
All metals are concentrated in the top ring zone samples Degree of enrichment is different for each element Lowest enrichment found for ZDDP elements
Enrichment Factor =
Concentration ofelement in ring-packzone relative toconcentration ofelement in sump
-
8/10/2019 Examining Effects of Lubricant Composition
13/55
Bottom Line:
Opportunities in optimizing the effectivelubricant composition in operation at themost critical locations for bestperformance at surfaces boundaryfriction, wear, detergency that tailor tolocal conditions at engine subsystems
1. Controlling oil/additive properties atcritical surfaces in local areas in specific
engine subsystems (valvetrain, pistonassembly, bearings..)
-
8/10/2019 Examining Effects of Lubricant Composition
14/55
1. Controlling oil/additive properties in local areas thatmatter most in specific engine subsystems
2. Interfacing with engine technologies that affect in-
situ effective lubricant properties in action
3. Optimizing lubricant formulation: the completepackage viscous/boundary friction, wear
4. Ascertaining compatibility with lubricant/additive-emission control system: lubricant/additives affect
fuel economy of engine operation beyond friction
Four lubricant technical themes that aim to worksynergistically to advanced engine technologies:
-
8/10/2019 Examining Effects of Lubricant Composition
15/55
Effects of Temperature Sensitivity of Viscosity
Oil Temperature (Deg C)
BDC TDC Approximate Position on Liner
Ideal viscosity
Ideal viscosity should be low at mid-stroke and high at end strokes:either via lubricant design or component thermal management
0
3
6
9
12
15
18
90 110 130 150 170 190 K i n e m a
t i c V
i s c o s
i t y c
S t
15
Viscosity Index: In-situ Lubricant Properties Control
-
8/10/2019 Examining Effects of Lubricant Composition
16/55
Strategic Application Of ThermalBarrier Coatings (TBC)
Applied to mid-stroke to not affectlubricant properties at TDC or BDC
-
8/10/2019 Examining Effects of Lubricant Composition
17/55
100
110
120
130
140
150
160
170
180
190
200
1 2 3 4 5 6 7 8 9 10
L i n e r T e m p e r a t u r e
[ C
]
Liner Segment
Liner Temperature with Coating On Segments 4,5,6Baseline - No Coating 0.5 MM Coating 0.75 MM Coating 1 MM Coating
1.5MM Coating 2 MM Coating 3 MM Coating
Baseline
TDC BDC
TBC Region
Increasing TBC Thickness
17
-
8/10/2019 Examining Effects of Lubricant Composition
18/55
0
2
4
6
8
10
12
14
1 2 3 4 5 6 7 8 9 10
L u b r i c a n t V i s c o s i t y
[ c S t
]
Liner Segment
Local Viscosity of 15W-40 with Coating on Segments 4,5,6Baseline - No Coating 0.5 MM Coating 0.75 MM Coating 1 MM Coating
1.5MM Coating 2 MM Coating 3 MM Coating
TDC BDC
Increasing TBCThickness
Baseline
TBC Region
18
-
8/10/2019 Examining Effects of Lubricant Composition
19/55
0
2
4
6
8
10
12
14
1 2 3 4 5 6 7 8 9 10
K i n e m a t i c V i s c o s i t y
[ c S t
]
Normalized Liner Position
Lubricant Viscosity verus Liner PositionIdeal Baseline - No Coating 1 MM Coating
BDCTDC
Baseline-noCoating
IDEAL
TBC
Gains
19
-
8/10/2019 Examining Effects of Lubricant Composition
20/55
0%
5%
10%
15%
20%
25%
30%
35%
1 2 3 4 5 6 7 8 9 10
P e r c e n t D e c r e s e i n S e g m e n t F r i c t i o n
Liner Segment
Percent Decrease in Friction for TBC Applications1mm Coating, 15W-40 Reference Oil
Coating on Segments 4,5,6 Coating on Segments 4,5,6,7 Coating on Segments 4 Though 10
Target Zone forMaximum FMEP
Reduction
20
-
8/10/2019 Examining Effects of Lubricant Composition
21/55
Bottom Line:
Potential opportunities in further viscosity-temperature sensitivity (VI improvers)optimization in base oil that matchadvanced engine technologies
2. Interfacing with engine technologies thataffect in-situ effective fuel & lubricant
properties in action
-
8/10/2019 Examining Effects of Lubricant Composition
22/55
1. Controlling oil/additive properties in local areas thatmatter most in specific engine subsystems
2. Interfacing with engine technologies that affect in-
situ effective fuel & lubricant properties in action
3. Optimizing lubricant formulation: the completepackage viscous/boundary friction, wear
4. Ascertaining compatibility with lubricant/additive-emission control system: lubricant/additives affect
fuel economy of engine operation beyond friction
Four lubricant technical themes that aim to worksynergistically to advanced engine technologies:
-
8/10/2019 Examining Effects of Lubricant Composition
23/55
Stribeck Diagram
From e.g. 2011-01-2134 Nattrass, S.R et al
ff dd h ff d ff
-
8/10/2019 Examining Effects of Lubricant Composition
24/55
Different additives show varying effects to differentengine subsystems in split valvetrain lube system
Additive types and concentration
From e.g. 2011-01-2134 Nattrass, S.R et al Ford Zetec 2l I4 gasoline
-
8/10/2019 Examining Effects of Lubricant Composition
25/55
Phase 1: Investigate the ideal lubricant formulations tailored to each major
engine component subsystem for the best performance
Modeling the effects of lubricant parameters on friction and wear forsubsystems
Parametric experiments to determine lubricant & additive effects onsubsystems
Phase 2, 3:
Develop composite lubricant formulations, tradeoffs and implementationstrategy for optimal lubricant formulation for the overall engine.Demonstrate the mechanical efficiency improvement. Determineimpact if any on emission control system.
Program Phases and Major Tasks:
k l b ff
-
8/10/2019 Examining Effects of Lubricant Composition
26/55
Major tasks to examine lube composition effectsModeling the effects of lubricant parameters on frictionand wear for subsystemsExtend single-component models to include lubricant compositionvariations, including additives. Semi-empirical models on boundary-friction vs additives
Develop and apply a lubricant compositional model to the power
cylinder and valvetrain subsystems
Parametric experiments to determine lubricant & additiveeffects on subsystems
Lubricant sampling and composition measurements
Lubricant and additive effects on piston assembly and bearings
Lubricant and additive effects on cam/valvetrain friction
L b i i Ci i d S b
-
8/10/2019 Examining Effects of Lubricant Composition
27/55
Lubrication Circuit and SubsystemSeparation
Overhead camshaftconfiguration enablesthe separation of thevalvetrain and
crankcase lubricationcircuits
Dedicated torque
sensor to determinecamhaft torque andpower
Kohler
-
8/10/2019 Examining Effects of Lubricant Composition
28/55
Separate engine and valvetrain rigEngine to be operational end of Oct
AC InductionMotor
InlineTorquemeter
CylinderHead
F l b i h i l h h i k
-
8/10/2019 Examining Effects of Lubricant Composition
29/55
1. Controlling oil/additive properties in local areas thatmatter most in specific engine subsystems
2. Interfacing with engine technologies that affect in-
situ effective fuel & lubricant properties in action
3. Optimizing lubricant formulation: the completepackage viscous/boundary friction, wear
4. Ascertaining compatibility with lubricant/additive-emission control system: lubricant/additives affect
fuel economy of engine operation beyond friction
Four lubricant technical themes that aim to worksynergistically to advanced engine technologies:
Different lube additives (ash) affect both engine and DPF
-
8/10/2019 Examining Effects of Lubricant Composition
30/55
Different lube additives (ash) affect both engine and DPFdifferently and will have both emission and efficiency impact
Lubricant additives composition affects ash properties and pressure drop
Ca-based ash shows much larger effect on pressure drop than Zn ash
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 5 10 15 20 25 30 35 40 45
P r e s s u r e
D r o p
[ k P a
]
Ash Load [g/L]
Mg (o)
Flow Bench @ 25 C, Space Velocity: 20,000 hr -1
CJ-4
Ca
ZDDP ( )
Mg & ZDDP (x)
Ca + ZDDP
1.5 g/L 15 g/L
(Detergent)
(Anti-wear)
S
-
8/10/2019 Examining Effects of Lubricant Composition
31/55
Summary Opportunities exist in optimizing the effective lubricant
composition in operation for best performance at
surfaces boundary friction, wear that tailor to localconditions at engine subsystems
There are potential opportunities in further viscosity-
temperature sensitivity (VI improvers) optimization in base oilthat match advanced engine technologies
Convergence of lubricant chemistry and mechanical
analysis will be helpful in developing and applyingadvanced lubricants for efficiency improvements
Modeling and tests on lubricant composition effects on
friction are challenging but will extend efficiency frontiers
-
8/10/2019 Examining Effects of Lubricant Composition
32/55
Thank you!
-
8/10/2019 Examining Effects of Lubricant Composition
33/55
Supplementary slides
-
8/10/2019 Examining Effects of Lubricant Composition
34/55
Project: Lubricant Formulations to Enhance EngineEfficiency in Modern Internal Combustion Engines
DOE-NETLCooperative Agreement #DE-EE0005445
with
Massachusetts Institute of TechnologyCambridge, Massachusetts
Prof. Wai K. ChengPrincipal Investigator
Dr. Victor W. Wong and Dr. Tian TianCo-Investigators
Kick-off MeetingNovember 15, 2011
Washington DC
-
8/10/2019 Examining Effects of Lubricant Composition
35/55
The overall program goal is to investigate, develop,
and demonstrate low-friction, environmentally-friendlyand commercially-feasible lubricant formulations thatwould significantly improve the mechanical efficiency ofmodern engines by at least 10% (versus 2002 level)without incurring increased wear, emissions ordeterioration of the emission-aftertreatment system
The specific project objectives include identifying thebest lubricant formulations for individual engine
subsystems, identifying the best composite lubricantformulation for the overall engine system, anddemonstrating the mechanical efficiency improvementfor the optimized lubricant formulation via enginetesting
Program Objectives:
-
8/10/2019 Examining Effects of Lubricant Composition
36/55
The overall program goal is to investigate, develop,
and demonstrate low-friction, environmentally-friendlyand commercially-feasible lubricant formulations thatwould significantly improve the mechanical efficiency ofmodern engines by at least 10% (versus 2002 level)without incurring increased wear, emissions ordeterioration of the emission-aftertreatment system
The specific project objectives include identifying thebest lubricant formulations for individual engine
subsystems, identifying the best composite lubricantformulation for the overall engine system, anddemonstrating the mechanical efficiency improvementfor the optimized lubricant formulation via enginetesting
Program Objectives:
-
8/10/2019 Examining Effects of Lubricant Composition
37/55
Definition of Program Phases/Budget Periods, Tasks, andSchedules
Program Duration: October 1, 2011 September 30,2014 (36 months)
Budget Period 1 = Phase 1: October 1, 2011 January 15, 2013 (Duration: 15.5 months)
Budget Period 2 = Phase 2: January 16, 2013 January 15, 2014 (Duration: 12 months)
Budget Period 3 = Phase 3: January 16, 2014 September 30, 2014 (Duration: 8.5 months)
-
8/10/2019 Examining Effects of Lubricant Composition
38/55
Task 1.0 Project Management and Planning (continuous)
Phase 1: To investigate the ideal lubricant formulations tailored to eachmajor engine component subsystem for the best performance
Task 2a: Modeling the effects of lubricant parameters on friction and wear for subsystems
Task 3: Develop experimental/analytical lubricant test parameters in consultation withteam participant(s) from lubricant/additive industry
Task 4a: Parametric experiments to determine lubricant & additive effects on subsystems
Task 5a: Data analysis, interpretation, and iteration between modeling and testing
More details discussed for each task after overview of work planned for eachPhase
Identification of Tasks in Each Phase:
Identification of Tasks in Each Phase (continued):
-
8/10/2019 Examining Effects of Lubricant Composition
39/55
Phase 2: To investigate composite lubricant formulations that retain most of the frictionalbenefits for the subsystems identified in Phase 1. Identify the tradeoffs andcompromises necessary for an optimal composite lubricant formulation for the
combined subsystems
Task 2b: Additional Modeling the effects of lubricant parameters on friction and wear forsubsystems
Task 4b: Additional parametric experiments to determine lubricant & additive effects onsubsystems
Task 5b: Additional data analysis, interpretation, and iteration between modeling andsubsystems
Task 6: Modeling the effects of lubricant formulations with local variations in chemistry in
overall engine with combined subsystems
Task 7: Engine experiments to determine lubricant and additive effects for the entireengine system
Task 8: Develop and design the enabling lubricant-handling technology and configurationin the engine, so that the best formulations can be implemented
Identification of Tasks in Each Phase (continued):
-
8/10/2019 Examining Effects of Lubricant Composition
40/55
Phase 3: To demonstrate the mechanical efficiency improvement for thebest optimized lubricant formulation in an actual engine over a range ofoperating conditions that both reflect those in standardized industryprotocols and other driving conditions
Task 9: Demonstrate in an actual engine the quantitative improvements inthe mechanical efficiency the best formulations from this study, ina production engine
Task 10: Evaluations of the impact on emission-control systems
Task 11: Technology transfer and interfacing with users and researchers
Identification of Tasks in Each Phase (continued):
-
8/10/2019 Examining Effects of Lubricant Composition
41/55
Task descriptions:
Task 1.0 Project Management and Planning
Task 1 will be a continuing effort throughout theprogram for monitoring the project status,tracking technical and financial reporting asrequired, and for reviewing and revising the on-going project plan with DOE periodically, as
required
Task descriptions (continued):
-
8/10/2019 Examining Effects of Lubricant Composition
42/55
Task descriptions (continued):
Task 4.0 Parametric experiments to determine lubricant &additive effects on subsystems (Phase 1 + 2)Iterations between experiments and modeling (Task 2) will be expected
Four sub-tasks:
Sub-task 4.1: Engine installation
Sub-task 4.2: Lubricant sampling and composition measurements
Sub-task 4.3: Lubricant and additive effects on piston-ring-liner/crank friction
Sub-task 4.4: Lubricant and additive effects on cam/valvetrain friction
T k d i ti ( ti )
-
8/10/2019 Examining Effects of Lubricant Composition
43/55
Task descriptions (continue):
Task 3.0 Develop experimental/analytical lubricant testparameters in consultation with team participant(s) fromlubricant/additive industry (Phase 1)
(a) Base oils: oils with different high/low shear viscositycharacteristics, viscosity modifiers,
(b) Other additives: boundary friction modifiers, anti-wear agents, detergents, anti-oxidants, and non-traditionaladditives such as nano-particles particularly thosecarbon based particles that do not further add to ashemissions to the aftertreatment system. Actualformulations will be discussed with lubricant/additivepartner
k 0 d l [ h ]
-
8/10/2019 Examining Effects of Lubricant Composition
44/55
Task 4.0: Engine experimentation details: [Phase 1]
Engine criteria:
1. Diesel, as proposed, where lubricant contaminationfrom combustion more severe.
2. Small, easy to work with, saves fuel when studyinglonger duration operation and cost of operation
3. Configuration common to most vehicles
4. Domestic manufacturer preferred due to easy oftechnical support and potential participation
Kohler diesel with belt driven overhead cam,
inline 2, 3, or 4 cylinders
-
8/10/2019 Examining Effects of Lubricant Composition
45/55
Lubrication System: Kohler KDW702, 1003, 1404 dieselwith overhead cam
-
8/10/2019 Examining Effects of Lubricant Composition
46/55
Kohler KDW 702 twin-cylinder diesel engine specifications
T k 4 0 L b i d f i i
-
8/10/2019 Examining Effects of Lubricant Composition
47/55
Task 4.0: Lubricant and friction measurements
Separation of lubrication loops for individual subsystemsalso allows lubricant formulation changes with ease
1. Friction changes due to lubricant formulations forindividual subsystems
2. Degradation and lubricant property changes versus
time against friction changes3. System allows for determination of the sensitivity of
individual subsystem contributions (overheadvalvetrain, crank, piston/ring /liner) to friction using
different lubricant formulations4. System allows for closed loop or open loop lubricant
flow to study effects of lubricant property degradationor contamination on friction
Task descriptions (continue): [Phase 1]
-
8/10/2019 Examining Effects of Lubricant Composition
48/55
Task descriptions (continue): [Phase 1]
Task 5.0 Data analysis, interpretation, and iteration
between modeling and testing
Results from the extensive modeling effort and the
large number of tests involving the matrices of test andmeasured parameters will be analyzed and correlated
Guidelines for formulation changes to realize furtherfriction improvements will be developed, newformulations proposed and tested, in an iterativeprocess
Task descriptions (continue): [Phase 2]
-
8/10/2019 Examining Effects of Lubricant Composition
49/55
Task descriptions (continue): [Phase 2]
Phase 2: Identify the tradeoffs and compromises necessary for an optimal
composite lubricant formulation for the overall engine with thecombined subsystems
Task 2b: Additional Modeling the effects of lubricant parameters on friction and wear forsubsystems
Task 4b: Additional parametric experiments to determine lubricant & additive effects onsubsystems
Task 5b: Additional data analysis, interpretation, and iteration between modeling andsubsystems
Task 6: Modeling the effects of lubricant formulations with local variations in chemistry inoverall engine with combined subsystems
The models developed in Task 2.0 can be applied to study the overall enginewith all the subsystems combined. Analytically, via the modeling, variousconcepts of controlling lubricant properties can be explored
Frictional benefits using an optimized lubricant formulation will be compared tothe best formulations for the subsystems individually.
Task descriptions (continue): [Phase 2]
-
8/10/2019 Examining Effects of Lubricant Composition
50/55
Task descriptions (continue): [Phase 2]
Phase 2 (continued): Task 7: Engine experiments to determine lubricant and additive effects for the
entire engine system
Task 7 deals with the pragmatic issue of actually implementing the laboratory optimallubricant formulation strategy. The best lubricant formulation will probably depend onhow the lubrication system will be designed.
There are four major configurations:
(a) One fluid with best compromised formulation: Fully segregated, no mixing. Non-optimal, but pragmatic. There will be differing degradation rates in each subsystem
(b) One fluid: Full mixing conventional configuration, which is the prevalent lubricantformulation strategy. Non-optimal
(c) Two fluids, but only one needs to be changed during routine engine operation. The otherlubricant formulated to last until major engine overhaul.
(d) Other means of controlling lubricant properties and their effects: (i) lubricant speciesremoval stations: chemical or particle sequestration, (ii) chemical or active speciesperiodic release, (iii) oil conditioning of lubricant flow between subsystems
Task descriptions (continue): [Phase 2]
-
8/10/2019 Examining Effects of Lubricant Composition
51/55
Task descriptions (continue): [Phase 2]
Task 8.0
Develop and design the enabling lubricant-handlingtechnology and configuration in the engine, so that thebest formulations can be implemented
Addresses the pragmatic issue of how to implement thebest formulation tested in a laboratory configuration
Investigate and develop practical means to enableimplementation of the best formulation in an engine
Demonstrate potential feasible means for use in thefield
Task descriptions (continue): [Phase 3]
-
8/10/2019 Examining Effects of Lubricant Composition
52/55
Task descriptions (continue): [Phase 3]
Phase 3: To demonstrate the mechanical efficiency improvement forthe best optimized lubricant formulation in an actual full-sizeengine over a range of operating conditions that both reflect thosein standardized industry protocols and other driving conditions
Task 9: Demonstrate in an actual engine the quantitativeimprovements in the mechanical efficiency the best formulationsfrom this study, in a production engine
The demonstration will last a sufficiently long duration to illustrate thesatisfactory deterioration rates, if any, of the lubricant formulation withinmajor oil drain intervals, and durable engine performance with acceptablewear
Task descriptions (continue): [Phase 3]
-
8/10/2019 Examining Effects of Lubricant Composition
53/55
Task descriptions (continue): [Phase 3]
Task 10: Evaluate the impact of the best friction-reduction lubricantformulations on emission-control systems
Focus on Diesel particulate filters (DPF)
Use accelerated ash accumulation test rig at MIT using the bestcandidate low-friction oil formulations
Evaluate back pressure build-up, by passive or activeregenerations, and DPF performance, of the candidate formulation
Task 11: Technology transfer and interfacing with users & researchers
Throughout program With DOE-NETL With public at large via conferences, theses, publications With working team supporters in industry oil, additive, engine co.
D li bl
-
8/10/2019 Examining Effects of Lubricant Composition
54/55
Deliverables
Summary of accomplishments and project work reportwill be prepared for inclusion in the annual VehicleTechnologies programmatic progress report. Report willbe due by October 31 of each year
Upon completion of a milestone, a brief milestone reportwill be provided to verify and document the completionof the milestone
The Project Management Plan will be updatedperiodically as needed. Updated plans will be submittedto NETL
-
8/10/2019 Examining Effects of Lubricant Composition
55/55