VOLUNTARY DIESEL RETROFIT PROGRAM

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VOLUNTARY DIESEL RETROFIT PROGRAM TECHNOLOGY
VERIFICATION
Office of Transportation and Air Quality
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What is the Voluntary Diesel Retrofit Program?

• A voluntary program designed to improve the
  emission performance of existing diesel vehicles
  and equipment
• We are building a market for clean diesel
  concepts
• Accelerating the delivery of ULSD
• Forging business partnerships and relationships
• Investing EPA resources to accelerate market
  growth

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Successful Retrofit Program Model

• The Diesel Retrofit Program works best when
• EPA HQ and Regional offices create partnerships
  with local leadership
• Local leadership is in the best position to
• Create expanding retrofit programs (as opposed to
  a single demo)
• Work with local fleet management and decision
  makers
• Know how to secure local and regional funding
• EPA will supply technical support
• Engine manufacturers
• Retrofit manufacturers
• Fuel refineries and suppliers

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What is Retrofit Technology?

• Retrofit technology can be
• any change to an engine system above and
  beyond what is required by EPA regulations that
  improves the engines emission performance
• Catalyst or filter
• Other devises or systems like SCR
• Engine upgrade or engine re-flash
• Use of early engine replacement
• Cleaner fuels or additives
• Idling control equipment
• Combination of above
• Retrofit technologies have verified effectiveness.

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Retrofit Technology Verification

• Objective Evaluate the emission reduction
  effectiveness of retrofit technologies
• Verification provides stakeholders with
  confidence that these technologies will achieve
  quantifiable emission reductions.
• Verification consists of the following
• Application Technology Description
• Appropriate Testing Protocols
• Statistical Sampling Methods
• Durability Requirements

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Generic Verification Protocols

• Devices
• First developed for catalysts, filters, and
  engine modifications
• Intended to be straight forward
• Repeat baseline tests compared to repeat retrofit
  technology tests
• Degreened aged devices with future in-use
  testing
• Fuels, Fuel Additives and Lubricants
• Anticipates lower reductions for gasoline
  diesel fuels
• Test program depends on technology
• Immediate effect vs. Cumulative effect
• SCR
• Recognizes reduction and testing depends on
  calibrations
• Ammonia slip monitoring

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Key Verification Participants

• Manufacturers
• Retrofit Technology Manufacturers
• Engine Manufacturers
• EPA, Office of Transportation Air Quality
  (OTAQ)
• Technical Support
• Mobile Source Program Guidance
• Research Triangle Institute (RTI) Through EPA-ORD
• Environmental Technology Verification (ETV)
  Program
• Testing Organizations
• Southwest Research Institute (so far)

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Simple Verification Process Example
Manufacturer Applies To EPA RTI
? EPA, RTI Manufacturer Develop Test Plan
? RTI, Testing Organization
Manufacturer Develop and Sign Statement of Work
? Testing Performed Documented
? RTI Generates ETV Report (which is
public information) ? OTAQ Includes
on Verified Technology List
? Explore Expanding Verification to Other Engines
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Testing

• Generic protocols describe general procedures
• ETV procedures
• Pollutants parameters to measure
• Test procedures fuel requirements
• Statistical evaluation of data
• Degreened and aged performance is evaluated
• Test plans have more specific information
• Specific engine product(s) to test
• FTP other tests required
• Number of repeat tests
• Each fuel to be used
• Prefer to have test engine represent initial
  target fleet
• more....

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Important Verification Points

• Initial verification is based on ETV results
• May want to expand verification to other engine
  vehicle types
• In-use testing is required for devices SCR
• ETV results are publicly available
• For examples look at
• Retrofit Programs Verified Technology List
• http//www.epa.gov/otaq/retrofit/retroverified
  list.htm
• ETV reports
• http//www.epa.gov/etv/verifications/vcenter5-
  5.html

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Important Verification Points

• How Does the Technology Work?
• Be prepared to document how (mechanism) the
  technology reduces emissions
• Test Plans Scope of Verification depend on the
  technology mechanism
• Immediate vs. Cumulative effect technologies
  require different test plans
• Cleaning effect may require cumulative testing
• Technologies to clean problem old engines must
  also perform on properly operating newer engines
• Technologies with electronic controls may require
  consideration of procedures in the SCR protocol

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Important Verification Points

• You Must Know the Limits of the Technology
• How broadly has it been demonstrated how?
• Are there durability or in-use operation
  concerns?
• Does it require certain fuels or engine
  operation?
• How does it perform on different fuels (2D vs
  ULSD)?
• Does it perform the same in different engines /
  applications?
• Must be demonstrated on properly maintained
  engines

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Important Verification Points

• What Emission Testing Has Been Performed?
• Protocols require the Federal test procedure
  (FTP)
• Opacity testing is not used in verification
• I/M testing is not used in verification
• Existing data is not used for initial
  verifications
• Commercially Ready Technology
• Applicant must know the design and operation
• Do not want changes just before or after
  verification
• Documentation should apply to the current product
• Good to have your test engine representative of
  your initial or primary target fleet

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For further information

• EPA Retrofit Verification Dennis Johnson
• johnson.dennis_at_epa.gov [phone]
• ETV Air Pollution Control Center
• Research Triangle Institute Drew Trenholm
• atrenholm_at_rti.org [phone]
• California Air Resources Board
• Retrofit Assessment Section Scott Rowland
• srowland_at_arb.ca.gov [phone]

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For further information

• EPAs Voluntary Diesel Retrofit Program
• www.epa.gov/otaq/retrofit
• EPAs ETV Program
• www.epa.gov/etv
• Research Triangle Institute - Air Pollution
  Control Center
• http//etv.rti.org/apct/
• California Air Resources Board
• http//www.arb.ca.gov/diesel/verdev/verdev.htm