State of Maryland Retrofit Projects

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State of Maryland Retrofit Projects

• Tim Shepherd, Maryland Department of the
  Environment

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Considerations

• Must be EPA Verified Technology
• Type of the Vehicle
• Operating Temperature of Engine
• What type of Diesel Fuel is being used

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Marylands Retrofit Options

• Ultra Low Sulfur Diesel (ULSD)
• Diesel Oxidation Catalyst (DOC)
• Closed Crankcase Ventilation Filtration (CCVF)
  System
• Engine Reflash (International T444E Engines)

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Diesel Oxidation Catalyst

• Definition A DOC is a device that uses a
  chemical process to break down pollutants in the
  exhaust stream into less harmful components.
• Advantages/Disadvantages
• No Special Fuel Requirements
• Minimal Exhaust Modification
• Proven Technology (OEM Option)
• Cost Effective
• No Maintenance
• - Moderate Emission Reductions (vs. DPF)

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Ultra Low Sulfur Diesel

• Definition Currently diesel fuel with a sulfur
  content of 30 ppm. After June 2006 must have
  sulfur content of 15 ppm.
• Advantages/Disadvantages
• Transparent
• No Engine/Vehicle Modifications
• Technology Enabler
• Emission Reductions
• - Cost
• Availability
• Dedicated Distribution/Handling

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Closed Crankcase Ventilation Filtration System

• Definition Crankcase filtration systems allow
  the crankcase to be closed.
• Advantages/Disadvantages
• No Special Fuel Requirements
• Decreases In-cabin Emissions
• Proven Technology (New OEM Option)
• Low Cost
• - Requires Maintenance Change CCVF Filter with
  oil change
• - Unique Installation Considerations

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International T-444E Engine Reflash

• Definition Reflashing the engine is a process
  that involves reconfiguring the computer control
  chip. This will recalibrate the engine and
  lowers its NOx emissions. Must also use a DOC or
  PM trap.
• Advantages/Disadvantages
• NOx Reductions
• Proven Technology (OEM Option)
• No Change in Performance (Mileage, Power)
• - Limited to T-444E Engine, Model Years
  1999-2003
• - Must Use EPA Verified Package DOC

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Verified Retrofit Technology
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Active MDE Retrofit Projects

• City of Baltimore EBD Load Packer Retrofit
  Project
• City of Baltimore EPA Sensitive Population Grant
  (Fire Trucks and Ambulances)
• City of Baltimore EBD Dump Truck Retrofit Project
• Howard County Transit Bus Retrofit Project
• MTA EPA Retrofit Grant (Refuel MTAs Eastern with
  ULSD Fuel)
• VEPCO SEP School Bus Retrofit Grant
• Anne Arundel County Public Schools
• Montgomery County Public Schools
• Prince Georges County Public Schools

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Maryland Department of the Environment

• Mobile Sources Control Program
• Marcia Ways
• [phone]
• mways_at_mde.state.md.us
• Tim Shepherd
• [phone]
• tshepherd_at_mde.state.md.us
• Lonnie Richmond
• [phone]
• lrichmond_at_mde.state.md.us
• 1800 Washington Boulevard Baltimore, MD
  21230-1718 410-537-3000 TTY Users
  1-800-735-2258 www.mde.state.md.us