CLEAN CITIES COALITION NETWORK
LCF’s Webinar Wednesday Presentation:
Pro Tips for CNG Fleets-Vehicles
Welcome
: Ann Vail, LCF Executive Director
About Clean Cities:
Tyler Herrmann, LCF Co-Coordinator
Your Round-Table Moderator:
John Gonzales @ National Renewable Energy Laboratory
CNG Expert Panel:
•
Patrick Campbell @ Cummins Westport
•
Dwayne Nelson @ Republic Services
Questions and Answers
Agenda
Why Are We Here?
Alternative Motor
Fuels Act of 1988
Clean Air Act
Amendments
of 1990
Energy Policy Act
(EPAct)
of 1992
Alternative Fuels
• National network of
nearly 100 local coalitions
• 80+% of the total U.S.
population lives inside coalition boundaries
Local Partnerships: Clean Cities Coalitions
Reliability/Resiliency
National Security
Economic Growth
Affordability for Businesses and
Consumers
Vehicle Technologies Office
Electrification
Materials
Technology
Efficient
Energy
Mobility
Systems
Advanced
Combustion
Systems and
Fuels
Technology
Integration
How do Clean Cities Coalitions Fit Within DOE?
ü Improve energy efficiency
ü Increase domestic energy security
ü Reduce operating cost for consumers & business
ü Improve global competitiveness of US economy
VTO develops advanced transportation technologies to:
Light-, Medium-, and Heavy-Duty Vehicles
Energy Efficient
Mobility Systems and Technologies
Alternative Fuel Infrastructure
•
Fact:
Transportation in the
United States accounts for
28% of GHG emissions.
•
In 2018 alone,
Clean Cities
work resulted in a reduction of
1.1 billion gallons of
petroleum.
Clean Cities: About Louisiana Clean Fuels
Territory: 57 Parishes
“It is our job to identify, then work to
remove
the
barriers
that prevent both
public and private fleets from
adopting
alternative fuels
and
advanced
technologies
into their fleets.”
As a member of the Department of Energy’s Clean Cities Program, LCF strives to achieve its goals by employing a variety of strategies which include: promoting and implementing the use of domestically produced fuels, alternative fuel vehicles, increased fuel economy, hybrid vehicles, and idle reduction technologies.
Louisiana Clean Fuels (LCF) was established in 1997 as an affiliate of the United States Department of Energy (DOE) Clean Cities program and received designation April 11, 2000. LCF operates as an independent, non-profit association supported through its partnership with the Louisiana Department of Natural Resources (LDNR) and its stakeholders.
Green Fleet Certification The LCF Green Fleets Program is designed to assist fleets in deploying solutions that improve the economic and environmental performance of vehicle operations by conducting emissions analysis and quantification of on-road vehicles for fleets throughout the state of Louisiana. Learn more…
LCF hosts workshops, conferences, webinars, roundtable meetings and public outreach events around the state. As a fuel-agnostic organization, we work with our stakeholders to identify the optimal solution that will help them attain their sustainability and emission reduction goals.
Outreach & Education
First Responder Training Our coalition pledges its continued support and empowerment of Louisiana first responders by providing them with up-to-date safety information on alternative fuel vehicles. In 2019, LCF conducted 21 hours of free alternative fuel safety classes to first responders statewide.
Fleets, municipalities and businesses seeking assistance to fund their alternative fuel and emission reduction projects are encouraged to work with their local Clean Cities coalition, such as LCF, to collaborate on grant opportunities.
Funding Assistance
Louisiana Clean Fuels’ Territory
Parishes Covered by Louisiana Clean Fuels
Acadia Parish Concordia Parish LaSalle Parish St. Landry Parish
Allen Parish DeSoto Parish Lincoln Parish St. Martin Parish
Ascension Parish East Baton Rouge Parish Livingston Parish St. Mary Parish
Assumption Parish East Carroll Parish Madison Parish Tensas Parish
Avoyelles Parish East Feliciana Parish Morehouse Parish Terrebonne Parish Beauregard Parish Evangeline Parish Natchitoches Parish Union Parish
Bienville Parish Franklin Parish Ouachita Parish Vermilion Parish
Bossier Parish Grant Parish Pointe Coupee Parish Vernon Parish
Caddo Parish Iberia Parish Rapides Parish Washington Parish
Calcasieu Parish Iberville Parish Red River Parish Webster Parish
Caldwell Parish Jackson Parish Richland Parish West Baton Rouge Parish
Cameron Parish Jefferson Davis Parish Sabine Parish West Carroll Parish
Catahoula Parish Lafayette Parish St. Helena Parish West Feliciana Parish
Louisiana Clean Fuels
CNG Tips and Tricks
John Gonzales
August 19, 2020
NREL | 14
Natural Gas Tips and Tricks
•
NREL is in support of Louisiana Clean Fuels
•
NREL manages the Technical Support program called “Tiger Teams”
•
NREL manages the NGVTF (Natural Gas Technology Forum) for the Department of
Energy (DOE) that is held annually in partnership with AQMD,SCAQMD and
NGVAmerica)
•
Outcomes from this work are:
–
DOE awarded projects
–
CEC ongoing work
–
OEM Updates
–
Natural Gas Heavy Duty in-use testing
•
Managing DOE Funding Opportunity Announcement (FOA) has been released. $36
Million of the $133 Million to support Technologies and Integration projects
•
NREL provided support to NFPA, CSA and IFC regarding codes and standards
•
NREL receives a single cylinder heavy duty test engine for dedicated natural gas
research
NREL | 15
Information Resource
•
Natural Gas Facilities maintenance guide
NREL | 16 NREL | 16
Thank you for your
participation
John Gonzales
Natural Gas
Engine
Maintenance
August 2020
Patrick Campbell
Regional Sales Manager - South Region _______________________________ Cummins Westport Cell: 303.229.7713 Email: [email protected]
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Cummins Westport Inc. (CWI)
§
Cummins Westport is a joint venture established in 2001
- 50%: Cummins Inc. - world’s largest builder of commercial diesels
- 50%: Westport Innovations Inc. - world leader in gaseous fuel engine
technology
§ CWI offers 6 to 12 liter natural gas automotive engines-CNG, LNG, RNG
§ Engines are manufactured by Cummins
§ Parts, warranty, service and training supported through the Cummins Sales
and Service network
§ Over 90,000 engines delivered worldwide
19
CWI – 2018 North America Product Line
Cummins Westport Inc.
19
Stoichiometric EGR, Emissions Leading
Engine Name B6.7N L9N ISX12N
Engine Plant RMEP RMEP JEP
Image
Displacement 6.7 litre 8.9 litre 11.9 litre
Power Range 200 – 240 hp 250 – 320 hp 320 – 400 hp
Torque Range 520 – 560 lb⋅ft 660 – 1000 lb⋅ft 1150 – 1450 lb⋅ft
Criteria Emissions Level
EPA10
CARB Optional Low NOx 0.1 g/bhp-hr
EPA10
CARB Optional Low NOx 0.02 g/bhp-hr
EPA10
CARB Optional Low NOx 0.02 g/bhp-hr
GHG Emissions Level 2017 GHG
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Natural Gas Engine Oil Specifications
CES 20085* CES 20074
Sulfated Ash Level 0.7-0.9% Sulfated Ash Level 0.4 – 0.6%
Calcium 1,800 – 2,300 ppm Calcium < 1,200 ppm
Phosphorous 700 – 900 ppm Phosphorous 600 – 800 ppm
Zinc 800-1,000 ppm Zinc 600 – 800 ppm
CES 20092**
Sulfated Ash Level 0.7-0.9% Calcium 1,200 maximum ppm
Phosphorous 800 maximum ppm
No specification for Zinc**
*Cummins recommends using a CES 20092 oil
NOTE: CES20085 is obsolete 12/31/2019
The new specification: Cummins Engineering Standard (CES) 20092 provides significantly improved oxidation and thermal stability compared to previous natural gas oils.
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Oil Level Check Tips
• Be sure the vehicle is parked on level ground.
• Allow 15+ minutes for the oil to drain back to the oil pan before checking the level. In
testing we have seen it take 20-30 minutes for the oil level to stabilize in the pan. The oil level measurement can be off by up to 1 gallon if adequate time is not given.
• The dipstick needs to be fully inserted and locked prior to reading to accurately gauge
the oil level.
• Only add oil if the level is below the ADD line.
• Overfilling can cause oil consumption.
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Oil Consumption
• Oil consumption rate can be difficult to quantify. In attempt to accurately determine
oil consumption Cummins has a published procedure which includes documenting the oil usage over time.
• It involves recording the mileage and amount of oil added over numerous oil
adds.
• Care needs to also be taken that the same exact procedure is used each time to
check the oil level prior to adding.
• The Power Cylinder is often blamed because it does a good job of burning any oil that
gets into it, however Oil consumption has a number of possible causes: • Overfilled crank case
• Incorrect Dipstick calibration
• External leaks
• Internal Leaks
• Crank Case Breather
• Turbocharger seals
• Worn out rings
24
General Engine Maintenance
ISB6.7G & B6.7N ISLG & L9N ISX12G & ISX12N
Oil & Filter (CES20092) Hours 750 1,000 1,000 Part # 3937736 3401544 4367100
Spark Plugs Hours 750 1,500 1,000
Part # 4376564 5473009 4309391
Fuel Filter Hours 1,000 1,000 1,000
Part # 3607140 3607140 3607140 Valve Adjustment Hours 1,500 1,000 3,000 ongoing 1,000 initial
Crankcase Breather Hours 2,000 2,000 10,000
Part # 5288839 5288839 4389517 Ignition Coil Extension Hours 5,000 10,000 10,000
Part # 5402163 5265337 4387015
Standard Coolant Hours 2,000 6,000
Coolant Filter
Hours NA 500 1,500
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Spark Plugs
Ø Change the spark plugs on time. The maintenance interval for the spark plug is
1000hrs for the ISX12G/N, 1500hrs for the ISL G/ L9N, and 750hrs for the B6.7N. Almost every fleet that has “premature” spark plug replacement is caused by having the incorrect average vehicle speed when calculating the interval or is just missing the interval. Our preventative maintenance intervals are designed such that the total usable life of the spark plug is utilized, yet the spark plug is changed prior to misfire occurring.
Ø Do not ADJUST the gap on your new spark plugs. If you have a new spark plug
that appears to be out of spec, just return it for a replacement. If you feel you need to check the gap before installing only use a wire/pin style gauge like shown here. Do not use the blade/leaf style or the flat disk gap gauges as it damages the
electrode.
Ø Use only genuine Cummins spark plugs. Spark plugs are an emissions related
component. We have extensively tested and validated these plugs to meet the emissions certification of your engine. Aftermarket spark plugs have not been proven to meet the emissions certification.
ISX12N Single ground electrode 19 mm thread reach
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Maintenance Best Practices
•
Perform maintenance on time based on engine hour intervals.
• If mileage intervals are needed, check overall average vehicle speed including idle time.
If the engine is running it is using up spark plug and oil life.
• Spark plug and oil changes performed on time have a drastic impact on reducing
unplanned downtime
•
Keep idle to a minimum.
•
Use genuine Cummins parts
• Spark plugs, filters, and all other components have been validated to meet Cummins
design standards and to keep the engine meeting or surpassing emissions certification.
•
Use CES 20092 spec oil to take advantage of longer drain interval
•
Check for and install latest ECM calibration at every spark plug change
• Calibrations have been historically released 2+ times a year
27
Symptoms of Late Maintenance
•
Misfire
•
Spark plugs not changed on time cause fault
lamps, rough running, low power, and put
unburned fuel into the catalyst.
•
Front or rear main seal leaks
•
Main seals coke up with oil and start leaking
once the oil breaks down
.
•
Piston failures on ISX12G
•
Pistons overheat and crack due to oil coking in
the cooling galleries from degraded oil.
Fleets with any of these issues need to revisit maintenance
intervals and ensure maintenance is being performed on time.
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•
Republic Services has been an LCF member
since 2016
•
They are a 5-Star certified LCF Green Fleet
•
Calvin Ray, General Manager at Republic
Services since 2010, is a valuable member of
LCF’s Board of Directors
•
In 2019, Republic Services was recognized as
LCF’s Clean Fuel Champion for mitigating
19,000 tons of GHGs, largely through their
extensive use of CNG vehicles in their fleet.
Dwayne Nelson
Fleet Maintenance
Manager
Republic Services
Round-Table Moderator:
John Gonzales @ National Renewable Energy Laboratory
CNG Expert Panel:
•
Patrick Campbell @ Cummins Westport
•
Dwayne Nelson @ Republic Services
Panelist Discussion
Audience Q&A: Stump the Experts
Dwayne Nelson
Fleet Maintenance
Manager
John Gonzales
Senior Engineer for
Advanced Vehicle
Deployment
Patrick Campbell
Regional Sales
Manager – South
Region
Thank you
Ann Vail
Executive Director
225-281-7353
Tyler Herrmann
Co-Coordinator
504-858-1706
