john deere engine pollution prevention n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
John Deere Engine Pollution Prevention PowerPoint Presentation
Download Presentation
John Deere Engine Pollution Prevention

Loading in 2 Seconds...

play fullscreen
1 / 20

John Deere Engine Pollution Prevention - PowerPoint PPT Presentation


  • 81 Views
  • Uploaded on

John Deere Engine Pollution Prevention. Patrick Hosty Robert Weathers. Regulated Emissions < 0.5%. Diesel Emissions. Products of Combustion. Oxygen. 6%. Nitrogen. 75.5%. 8%. Water Vapor. 10%. Carbon Dioxide. .8. .6. .4. .2. .0. Off-road Emissions Regulations: 20<100 hp.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'John Deere Engine Pollution Prevention' - natan


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
john deere engine pollution prevention

John Deere Engine Pollution Prevention

Patrick Hosty

Robert Weathers

diesel emissions

Regulated Emissions< 0.5%

Diesel Emissions

Products of Combustion

Oxygen

6%

Nitrogen

75.5%

8%

Water Vapor

10%

Carbon Dioxide

off road emissions regulations 20 100 hp

.8

.6

.4

.2

.0

Off-road Emissions Regulations: 20<100 hp

Tier 2: 2001-2004

Tier 3: 2006-2008

Tier 4: 2011-2012

Tier 1: 1996-2001

.8

.8

.8

.6

.6

.6

Particulates (g/kWh)

-40%

.4

.4

.4

.2

.2

.2

.0

.0

.0

0

2

4

6

8

10

0

2

4

6

8

0

2

4

6

8

0

2

4

6

8

NOx + HC (g/kWh)

20 < 100 hp

  • Off-road Tier 3 implemented 2006 - 2008
  • EPA Tier 4 regulation likely for 2011-2012
tier 2 technologies
Tier 2 Technologies
  • Reducing Pm:
  • Optimized fuel air mixture
  • Increase injection pressure

PM & Fuel Consumption - g/kW hr

  • Reducing NOx:
  • Combustion development
  • Reduce charge air temperature
  • Retard timing

NOx (Oxides of Nitrogen) - g/kW hr

tier 2 engine and vehicle changes
Tier 2 Engine and Vehicle Changes
  • Tier 2 Engine Changes
    • Higher pressure fuel injection system
    • Electronic control of fuel delivery and timing
    • Air system changes
  • Tier 2 Vehicle Changes
    • Charge air cooling on more applications
    • Redesigned cooling packages on some applications
    • Electronic interface to engine on most applications
    • Fuel coolers some applications
tier 2 compliance impact on vehicles
Tier 2 Compliance: Impact on Vehicles
  • Machine power, torque, transient response, cold start, productivity will equal or exceed Tier 1
  • Reliability and durability will be equal to Tier 1
  • Total operating cost comparable to Tier 1 (application dependent)
  • Cleaner Tier 2 vehicles should demand higher resale value
tier 2 impact on end user
Tier 2Impact on End User
  • Engine changes to fuel injection system, air system
  • Minor changes to vehicles
  • Vehicle performance, reliability, total operating cost comparable to Tier 1
tier 3 technologies
Tier 3 Technologies
  • Reducing Pm:
  • Optimized fuel air mixture
  • Increase injection pressure
  • Post Injection
  • Oxidation Catalyst

A Tradeoff:

Fuel Consumption /

Heat Rejection vs.

Emissions Compliance

  • Reducing NOx:
  • Combustion development
  • Reduce charge air temperature
  • Retard Timing
  • Exhaust Gas Re-circulation

PM & Fuel Consumption - g/kW hr

NOx (Oxides of Nitrogen) - g/kW hr

tier 3 engine and vehicle changes
Tier 3 Engine and Vehicle Changes
  • Tier 3 engine changes
    • Exhaust gas re-circulation (EGR)
    • Variable geometry turbocharger
    • 4 valves per cylinder (>100HP)
    • Advanced electronic controls
    • High-pressure fuel systems
    • Impermeable gas lines
  • Tier 3 vehicle changes
    • Charge air cooling on most applications
    • Larger radiators, fuel tanks, air cleaners, mufflers, etc.
    • Improved air flow management and fan systems
    • Vehicle changes to accommodate cooling needs
tier 3 compliance impact on vehicles
Tier 3 Compliance: Impact on Vehicles
  • Machine power, torque, transient response, cold start, productivity will equal or exceed Tier 2
  • Reliability and durability will be equal to Tier 2
  • Total operating costs may increase
    • Fuel consumption ~5% greater than Tier 2 (application dependent)
  • Deere’s objective is no fuel consumption increase
  • Packaging will meet customer expectations for visibility and machine operation
  • Cleaner Tier 3 vehicles should demand higher resale value
tier 3 impact on end user
Tier 3 Impact on End User
  • Significant engine changes
    • EGR, VG turbocharger, etc.
  • Significant vehicle changes
    • to accommodate additional cooling needs
  • Performance and reliability comparable with Tier 2 vehicles
  • Total operating costs may increase due to increased fuel consumption
current ozone regulations
Current Ozone Regulations

Current Ozone Standard

Future Ozone Standard

Future standards likely implemented 2003-2005

emission reference info
Emission Reference Info
  • EPA Emissions & Retrofit Information http://www.epa.gov/otaq/retrofit/
  • EPA Certification Information http://www.epa.gov/oms/certdata.htm
  • Texas http://www.tnrcc.state.tx.us/oprd/sips/terp.html
  • California http://www.arb.ca.gov/diesel/dieselrrp.htm
  • Dieselnet http://www.dieselnet.com/standards.html
oil improvements
Oil Improvements
  • Higher Fire Temps/ Pressures in engines (after 1990)
  • Prevent forming of carbon deposits, sludge and soot
  • Different additives for less deposits
  • Different viscosities-15w40 vs 0w40 2.7% in fuel savings. (3.78 gal/mo/machine)
what is in the future
What is in the future?
  • Catalytic converters?
  • Reduce Phosphorus in combustion
  • Low Sulfur Diesel fuel
  • New standard of oils (new additives)