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APTA Bus Maintenance Webinar
Part 1 Introducing the 2013 Diesel Engine Speaker: Tom Hodek, Cummins, Inc Part 2 Long Beach Transit: Embracing CNG Speaker: Rolando Cruz, LBT
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APTA Maintenance Webinar - Introducing the 2013 Engine
Tom Hodek January 24, 2013
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Special Thanks
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Discussion Topics Emissions Regulation 2013 Impact on Maintenance
Past and Present How it has driven technology 2013 Impact on Maintenance OBD / Fault Codes Hardware Changes Service Tools Future Regulations GHG Regs Predicted Maintenance Changes
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2010: Near-Zero NOx and PM NOx / NOx+HC Particulate 2 4 6 8 10 12 1988
2 4 6 8 10 12 1988 1990 1995 2000 2005 2010 2015 2020 10.7g/HP-hr 6.0g/HP-hr 5.0g/HP-hr 4.0g/HP-hr 2.5g/HP-hr 1.2g/HP-hr* 0.2g/HP-hr 0.1 0.2 0.3 0.4 0.5 0.6 0.6g/HP-hr 0.25g/HP-hr 0.1g/HP-hr 0.01g/HP-hr Urban Bus 0.05g/HP-hr
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Emissions Reduction Impact
2000 = 1990 2000 2010 Nox (g/hp-hr) 11 4 0.2 PM (g/hp-hr) 0.59 0.05 0.01
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Emissions Reduction Impact
2000 2013 (2010) = (20) 1990 2000 2010 Nox (g/hp-hr) 11 4 0.2 PM (g/hp-hr) 0.59 0.05 0.01
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Emissions Reduction Impact
1990 = 1990 2000 2010 Nox (g/hp-hr) 11 4 0.2 PM (g/hp-hr) 0.59 0.05 0.01
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Emissions Reduction Impact
1990 2013 (2010) = 1990 2000 2010 Nox (g/hp-hr) 11 4 0.2 PM (g/hp-hr) 0.59 0.05 0.01 (55)
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Evolution of Technology
NOx, PM Selective Catalytic Reduction Nitrogen Oxides and Particulate Matter Over 90% Reduction of Diesel Particulate Filter Cooled Exhaust Gas Recirculation Electronic Fuel Systems Air to Air Aftercooling 1990 2000 2010 2020
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Evolution of Technology
NOx, PM CO2 and Fuel Efficiency Selective Catalytic Reduction Nitrogen Oxides and Particulate Matter Over 90% Reduction of Diesel Particulate Filter Cooled Exhaust Gas Recirculation Electronic Fuel Systems Aftercooling 1990 2000 2010 2020
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Aftertreatment System
Integrating Critical Subsystems Filtration and Diesel Exhaust Fluid Electronic Controls Aftertreatment System Combustion Technology Turbochargers Fuel Systems
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Cummins 2013 Engines Same NOx and PM emissions regulations as 2010
0.2g NOx and 0.01g PM Same base engine and aftertreament as New ECM Integrated engine and aftertreatment controls Intake air throttle for closed loop control (emissions) OBD (On-Board Diagnostics) required – Diesel Only New fault codes added to monitor emissions sytems
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New ECM
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Pictures of Air Intake and ECM
New Air Intake Throttle
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What is OBD? On-Board Diagnostics
Monitors nearly every component that can affect the emissions control system Tests emissions-related components and systems to detect malfunctions Similar to passenger car systems or Cummins Turbodiesel in RAM Pick-up / Chassis Cab which have OBD-II systems for many years
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Malfunction Indicator Lamp (MIL)
Located on the dash of the vehicle It illuminates to indicate an OBD related fault Simplifies diagnostic and repair procedures for the technician and servicing location
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On-Board Diagnostics (OBD)
Aftertreatment System Monitoring ECM Monitoring Engine System Monitoring Service Tools MIL
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What Does OBD Mean For The Transit Industry?
Better monitoring of emissions systems Increased accuracy in determining the root cause of emissions-related faults Provides early warning of malfunctions
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Maintenance Changes for 2013
Fuel Filter change intervals (now at every oil change) NanoNet fuel filter medium Inspection intervals reduced Radiator cap and SCA levels (20K to 15K miles) Engine drive belts & tensioner (40K to 30K miles) Air compressor discharge line (80K to 60K miles) Aftertreatment servicing Frequent regeneration faults OEM Coolant Recover Tanks Add Coolant to recovery tank, not top tank OBD Fault Codes New fault codes all added for emissions compliance Cummins Insite / Generic Scan Tool
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Service Tools INSITE – Maintains ability to perform Cummins specific special tests whereas a generic scan tool cannot. QSOL (QuickServe OnLine) EDS – Next Generation Diagnostic Tool product offered through Cummins certified repair locations. OBD connector style will be the same 9-pin connector used previously
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Evolution of Technology
NOx, PM CO2 and Fuel Efficiency Selective Catalytic Reduction Nitrogen Oxides and Particulate Matter Over 90% Reduction of Diesel Particulate Filter Cooled Exhaust Gas Recirculation Electronic Fuel Systems Aftercooling 1990 2000 2010 2020
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Future Regulations 2014 GHG Standards
CO2 Limits: Reduce by 3% in 2014 to 9% total in 2017 over a 2010 industry baseline N2O and CH4 Limits (already met in 2010) Cummins EPA 2013 compliant engines meet 2014 Greenhouse Gas and Fuel Efficiency standards OEM (TVM) needs to use tires that are certified for compliance with GHG reduction (rolling resistance)
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Hybrid Engine Regulations
Cummins will offer Hybrid engines that meet both EPA and ARB 2013 certification requirements. Hybrid ratings will be distinct from conventional (non-Hybrid) ratings Hybrid ratings with Engine Start Stop (ESS) capability will be distinct from non ESS Hybrid ratings and will be limited to one ISB Transit Bus rating. (First availability: July 2013)
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Future Development Vehicle Manufacturer Integration
All subsystems Cooling System Improvements Fuel Economy GHG Compliance in 2014 and 2017 Aftertreatment Improved Efficiency Future Maintenance Requirements None at this time
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Thank You
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Long Beach Transit Embracing CNG
APTA Webinar January 24, 2013 28
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Agenda Background Why CNG? Procurement Training SCRTTC
CNG Station / Site Modification CNG Buses Training SCRTTC
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LBT Mission Long Beach Transit is in business to provide public transportation services that enhance and improve the quality of life for the people in our community. We serve Long Beach, along with 11 other cities – 98 square miles 29 million ridership
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Quality of Life Sustainability – drives our decision to clean up emissions on our vehicles Diesel Coaches – all purchases prior to 2003 Installed particulate traps on diesel buses in 2001 Early adopter of ultra-low sulfur diesel 2003 made a decision to go gas hybrid Procured 89 gasoline hybrid electric buses to date Staff and operations vehicles are actively being replaced with hybrids 2010 – completed alternative fuel study with WVU – essence maintain diverse fuel choice
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CNG Plans LBT planned on CNG for 2015
CNG economically good vs gas hybrid Lower Operating Costs w/ tax credit Infrastructure costs - break even point at one property for 40 coaches & other 70 ISE bankruptcy in late 2010 CNG purchases moved to 2012 Must build a CNG station within one year Modify both facilities to accommodate CNG Procure 64 buses with CNG engines
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Fleet Makeup Revenue Fleet Other Services Support Vehicles
171 – 40’ New Flyer buses (89 gasoline electric hybrid) 13 – 60’ New Flyer articulated buses 64 CNG – 40’ Gillig BRT 10 Electric buses in 2014 Other Services 17 Dial-A-Lift vans (Paratransit) 4 boats (2 AquaBus & 2 AquaLink) 1 Charter (Prevost) Support Vehicles 31 service veh for supervisor, staff & operators 25 maintenance service vehicles TOTAL of 326 VEHICLES 4 Propulsion Systems (Diesel, Gasoline Hybrid, CNG & All-Electric)
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CNG Station, Infrastructure Modification & Buses
Project Plan Our challenge began with the teams education in natural gas fuel. We needed to talk to the people in the know about CNG.. We started with existing users, vendors and multiple stakeholders using CNG, and our Governing Agencies regulating its safe use. 34
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CNG Project Goals Provide CNG fueling station able to fuel 77 – 95 coaches Upgrade infrastructure to accommodate repairs in entire shop & fuel island Prepare utilities for CNG (gas & electricity) Buy 64 CNG buses Get LBT transitioned to CNG Environmental understanding - ESMS The goals / project charter and budget were drafted to: Provide a CNG station to service up to 95 coaches Upgrade all of LJ maintenance facility and any parts of AA that had unique service Prepare for our gas & electricity requirements (delete above) Our CNG team identified our basic project goals: Provide a CNG compression station to service up to 95 coaches each night after completion of service. The limited bus service time window resulted in our selection of a bus fast-fill method versus a slow fill method. Upgrade all of LJ maintenance facility and select portions of AMF to safely accommodate lighter-than –air fuels within the buildings. Prepare utility connections for natural gas and electrical power usage far beyond the abilities of our current service connections. And of course start drafting a transition plan for CNG 35
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Project Constraints Goal 1 year – anticipating delivery of new CNG coaches Budget for station was tight – need to keep within $6.2 million Heavy workload on facility team Limited Staff Experience for CNG Limited Staff Time for Project Need City approval & cooperation (including LB Fire Department) – avoid EIR if at all possible Our constraints were a little tougher – as always TIME and MONEY. We had a tight timeline - 6/30/12 only 15 months. We knew that upon bus delivery, a fueling location and service location would be mandatory. A tight budget, projected at $6.2 million Overworked Staff with limited direct CNG experience – equates to slow project development time. The key regulatory stakeholders such as our City Planning & Building, and the Fire Department needed to provide regulatory approval of the initial design assumptions and concepts, before proceeding with detail plans.
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CNG Station Contract Awarded
4 qualified proposals received ranging from $4.5 to $6.18 million Contract Awarded to Amtek Construction, Lowest bid at $4.5 million Proposed Angi Energy Systems Compressors – five (500-scfm/250-hp) Gas Dryer - accommodate 3000 scfm Two (2) Buffer Storage paks 2 CNG fast-fill Dispensers & 1 slow Modify all of LJ facility (12 bays) & 3 bays at AA facility So four (4) Proposals came in and boy did they vary in pricing. The total price ranged from $4.5 million to $6.18 million. We ranked the proposals and conducted interviews with the top two scoring firms. In the end, the Amtek Construction (proposing Angi energy systems equipment) was deemed as offering the best value and presented the lowest cost of $4.5 million. With all other development costs, we were able to build our entire CNG project for the original projected budget of $6.2 million. 3-4 req for typical fueling rate of 1800 scfm 1 compressor off-line for service or backup 5th shown as bid deduct budget flexibility Dual Edison meters to reconcile cost of compression
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Maintenance Impact Station
Need Daily inspections & scheduled PM’s LBT chose to contract out Amtek – 1 year maintenance agreement Clean Energy – doing daily & oversight Going out to bid to award long-term contract, still need some facility training Need to train all employees on Safety & Maintenance on fueling
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CNG Coach Purchases Piggy Back - contract with Gillig for 64 coaches (after full evaluation) Cummins Engine – ISL G - 280 ZF Transmission – Eco Life 6AP 1400B CNG Tanks & Fueling System Gas Detection w/ Fire suppression
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Maintenance Impact Buses
Fluids resulting from CNG / ISLG: A low ash engine oil A premium long life coolant Material Review & order Preventative Maintenance Impact Gas detectors & system health Inspection of CNG components, valves, piping, leak detection, filter draining & replace CNG tank inspection at 3 yrs or 36,000 miles by a “certified” inspector, required training and CSA test for cert. LBT will do once per year. Others in part because of the opportunity or newer components: Longer life synthetic axle oil Synthetic fluid for the new model ZF, Ecolife
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CNG Training Project Plan 41
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Training Training Needs No one Stop Shopping
CNG Station / Site Safety CNG Tanks / Safety CNG Engine No one Stop Shopping LBT staff looked at all options Amtek / ANGI Natl Gas Vehicle Institute (NGVI) Gillig, Cummins, Amerex SCRTTC
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CNG Site Awareness & Safety
Facility - ANGI (Fuel Station) Utility - CNG Safety & Fueling Maintenance - CNG Safety / Methane detection Staff – CNG Awareness 612 Total Hours
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Bus Safety / Tank Certification
Gillig CNG Safety, PM, Air systems Amerex Fire & Methane Detection NGVI Safety and Tank inspection Tank Inspection – SCRTTC via LB City College 1,224 Total Hours
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CNG Engine Cummins – 2 days SCRTTC Course
Crash course - Cradle to Grave Taught by skilled technician SCRTTC Course 4 courses – total of 6 days Spread out over time and can do at a slower pace with standardized course & trained instructor LBT limited the amount of mechanics in courses intends to expand
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SCRTTC Southern California Regional Transit Training Consortium
The Future in Training
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The SCRTTC Purpose To provide a training resource network, comprised of public and private organizations, focused on the development and employment of the transit industry’s workforce that is proficient in the standards, practices and procedures for incumbent and new workers.
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The SCRTTC Overview California Corporation and 501 c (3) Non-Profit – formed in 2005 Partnership of 48 members consisting of Transit Systems, Community Colleges, Affiliate Members and Private Partners Provide research to demonstrate feasibility of a new transit workforce development ‘Learning Model’ Develop and deliver Transit Training providing the workforce knowledge of ITS standards, practices, and procedures. (early start in 2003)
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The SCRTTC Goals Develop a new “Learning Model” to increase the professional and technical competency of the Southern California public transit workforce Assure that this new “Learning Model” includes the elements of Intelligent Transportation Systems (ITS) Develop industry driven, competency based courses that meet present and future needs Deliver standard courses to mechanics throughout the region via colleges
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SCRTTC Transit Members
Southern CA Members Antelope Valley Transit Authority Arcadia Transit Beach Cities Transit Claremont Dial-a-ride / Pomona Valley Transportation Authority Commerce Municipal Bus Lines Culver City Municipal Bus Lines Foothill Transit Gardena Municipal Bus Lines Gold Coast Transit LA DOT La Mirada Transit LA METRO Long Beach Transit Montebello Bus Lines Norwalk Transit OCTA OMNITRANS Santa Clarita Santa Monica Big Blue Bus (BBB) Torrance Transit Systems Sunline Transit Other Transit Agencies Fresno Area Express Monterey-Salinas Transit District Roaring Forks Transit Authority San Joaquin RTD
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SCRTTC College & Partners
College Members Cerritos College Citrus College College of the Desert Colorado Mountain College Cypress College El Camino College Golden West College Kern Community College District LA Trade Tech College Long Beach City College Rio Hondo College Saddleback College San Diego Miramar College Santa Ana College Affiliate Members & Partners American Public Transportation Association Advanced Transportation Technology and Energy Initiative (ATTEi) California State University - LB Colorado Transit Association UC, San Diego USC - Mettrans ATech Training Inc., Walton, KY Proterra, Golden CO Clean Energy Complete Coach Works New Flyer of America
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SCRTTC Training Hours Training Delivered - Life To Date
Total Hours of training delivered: 50,184 Total Participants trained: 3,504 Cummins 8.9 Series (Level I, Insite, Level II): Total Hours of training delivered: 4,816 Total Participants trained to date: 342 CNG 1-day Safety: Total Hours of training delivered: 96 Total Participants trained to date: 12 CNG Cylinder tank inspection: Total Hours of training delivered: 576 Total Participants trained: 36
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CNG Training CNG Transit Vehicle Safety Training - #SC-CG-4100-I
Basic fuel characteristics regarding flammability Basic fuel characteristics regarding pressure Basic pressure system design Safety related pressure system components Basic cylinder care & damage Proper depressurization techniques Pressure system component servicing High pressure fitting servicing Leak detection techniques Cummins INSITE Diagnostic Software - #SC-EN-1712-I Select, add and connect proper adapters to a bus Access, custom group, and verify parameters Access, define, research, and clear fault codes Produce snapshots, data logging, and Graphing Look up engine derate, enabling criteria and other troubleshooting technique information Navigate the Electronic service tools for Cummins Cummins ISL-G Engine Mgmt System Level I - #SC-EN-1710-I Define Mass Air Flow Fuel Mgmt Systems Identify, locate & test parameters with: DVOM Temperature Sensors a Pressure Sensors Position Sensors Voltage Producing Sensors Mass Gas & Air Flow Sensors Use INSITE to verify parameters Cummins ISL-G Engine Mgmt System Level II - #SC-EN-1711-I Diagnose faults using INSITE for: Ignition Systems Pressure Sensors
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The Difference in Courses
Courses developed with the learning model College collaborates with transit agency (& vendors) to develop curriculum Standard set of materials created & approved Beta Testing of course with Subject Matter Experts – changes made to coursework Train-the-Trainer delivered to ensure quality of trainers Courses refreshed every 3 years
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Transit’s benefit in use of SCRTTC
Standardized course Manage Technicians Time Less time off floor – can spread out (2–3 at a time) New Technicians come in, can get training Sharing of Resources – Reduced cost to each agency Multiple agencies come to course Technicians get to Network Colleges are familiar with transit agencies / Great recruitment for future Students can learn skills required for transit
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The Future of Training Continued course development of advanced technology More Partnerships with Vendor Vendor use of SCRTTC to develop course will provide standardized, transit approved courses Standard material (pre/post test, objectives, student material/exercises, instructor material) Sharing of Material & TTT with non-regional members - expansion
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For More Information http://scrttc.com/
History & info of SCRTTC at finger tips Ability to look at any class curriculum On-line registration for one or group Rolando Cruz
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