Diesel Work Group Kevin Downing Oregon DEQ - - PowerPoint PPT Presentation

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Diesel Work Group Kevin Downing Oregon DEQ - - PowerPoint PPT Presentation

Mar 03, 2023 459 likes •718 views

Diesel Engine and Emissions Overview in Oregon Diesel Work Group Kevin Downing Oregon DEQ downing.kevin@deq.state.or.us 503.229.6549 Diesel and Air Quality Particle Size Matters Diesel Engines and Air Quality Diesel Engines and Air Quality

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Kevin Downing Oregon DEQ downing.kevin@deq.state.or.us 503.229.6549

Diesel Engine and Emissions Overview in Oregon Diesel Work Group

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Diesel and Air Quality

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Particle Size Matters

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Diesel Engines and Air Quality

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Diesel Engines and Air Quality

Reduction Targets To Meet Diesel PM Benchmark 89-92 % Depending upon the source category

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From Hansen and Saito, 2001

Climate Change Agents

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Relative Radiative Forcing BC v. CO2

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Radiative Forcing Temperature Response

Short Lived Climate Forcings

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Climate Change

Camilo Mora et al., The projected timing of climate departure from recent variability, Nature, October 2013

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Black Carbon Project Benefits Repowering engines saves fuel, reduces emissions

  • 2.4 T PM
  • 32,000 gallons fuel

CO2 21% BC 79%

Climate Change Benefit

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Oregon Clean Diesel Initiative

  • Burn Cleaner Fuel
  • Burn Fuel Cleaner
  • Burn Less Fuel
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Clean Diesel Initiative

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Burn Cleaner Fuel

  • ULSD
  • Biodiesel
  • Renewable Diesel
  • Natural Gas
  • Propane
  • Electric
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Burn Fuel Cleaner

  • Catalyst oxidizes CO, HC to harmless gases
  • Trap prevents particulate emissions to open

air; catalyst oxidizes the particulate, regenerating the trap

  • Can reduce total particulate emissions by up

to 95 %

  • Better toxic reduction (carbonyl & PAHs) than

CNG

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Burn Less Fuel

Upgrading engines to reduce fuel consumption

Improving fuel economy Reducing Idling

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Clean Diesel Projects

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From: Alternative Diesel Fuel Symposium, August 2003, California Energy Commission

Cost Effectiveness of Alternative Controls

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Cost $ 296,000 Benefit $1.2 million Port Emission Reduction Grant Replace 23 trucks Retrofit 3 cargo handlers

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Projected Diesel PM Risk in Oregon

5 10 15 20 25 30 1996 2002 2010 2018 2026 Cancer risk per million 2017 Reduce risk to 1 in 1 million by 2017

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Oregon Sources of Diesel PM - 2011

DEQ 2011 Emission Inventory

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Oregon Heavy Duty Truck Fleet

Oregon based 54,952 Multi state 320,090

2007 and older 2008 and newer

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Oregon Heavy Duty Truck Fleet

Multi- state 320,090 Oregon based 54,952

2007 and older 2008 and newer

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Oregon Non-road Diesel ≥ 25 HP By Emission Tier

EPA NONROAD Model

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Clean Diesel Challenges

  • Benefits are disbursed and in the future
  • Solutions come at a cost
  • Can require substantial effort
  • Legacy problem
  • Voluntary vs. regulatory
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Clean Diesel Opportunities

  • Addresses a serious need
  • Solution readily available
  • Cost effective
  • Substantial gains in protecting public health and

the environment