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CLEAN DIESEL DEMONSTRATION PROGRAM PowerPoint PPT Presentation


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,. CLEAN DIESEL DEMONSTRATION PROGRAM. Diesel Emission Control Retrofit Users Conference Pasadena, CA February 6 -7, 2001. OUTLINE. NYCT Operations Program Objectives; Partners and Roles Project Work Plan Field Demonstration Emissions Testing Fuels Matrix Testing Technology Issues

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CLEAN DIESEL DEMONSTRATION PROGRAM

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Clean diesel demonstration program

,.

CLEAN DIESEL DEMONSTRATION PROGRAM

Diesel Emission Control

Retrofit Users Conference

Pasadena, CA

February 6 -7, 2001


Outline

OUTLINE

  • NYCT Operations

  • Program Objectives; Partners and Roles

  • Project Work Plan

    • Field Demonstration

    • Emissions Testing

    • Fuels Matrix Testing

  • Technology Issues

  • Current Results


Clean diesel demonstration program

NYCT Bus Operations

  • Number of Depots: 18

  • Employees: 12,159

  • Bus Routes / Bus Stops: 234 / 14,000

  • Ridership: 2.0 million weekday

  • Revenue Miles: 102 million annually

  • Diesel Fuel Used: 40 million US Gal. in 1999


Clean diesel demonstration program

NYCT Bus Fleet

2000

2006

3,862

2,022

40' Diesel Transit

280

660

45' Diesel Coach

148

629

60' Diesel Articulated

90

649

40' CNG Transit

10

390

40' Hybrid Transit

Total

4,390

4,350


Project objectives

PROJECT OBJECTIVES

  • Evaluate the particulate emissions reductions available using JMI’s CRT TM technology in conjunction with reduced sulfur diesel fuel

  • Evaluate the applicability of the technology to both new 4-stroke and older 2-stroke diesel engines

  • Evaluate the maintainability and durability of CRTs in rigorous New York City bus service

  • Evaluate fuel parameters that can enhance future commercial success


Technology

TECHNOLOGY

  • Continuously Regenerating Technology

    • Oxidation catalyst and wall-flow ceramic filter

    • Packaged to replicate OEM muffler dimensions

    • No moving parts

    • No external energy requirements

  • Reduced Sulfur Diesel Fuel

    • Base specification similar to #1 Diesel

    • Sulfur level of 30 ppm (350 - 500 ppm standard)

    • Lubricity enhancement


Johnson matthey crt tm

Johnson Matthey CRT TM

Outlet

Section

Filter

Section

Catalyst

Section

Inlet

Section

Honeycomb

Catalyst

Wall-flow

Filter


Project partners

PROJECT PARTNERS

  • Johnson Matthey - CRT technology

  • Corning - ceramic filters

  • Equilon - reduced sulfur diesel fuel

  • Environment Canada - emissions testing

  • New York State Department of Environmental Conservation - program development/testing

  • RAD Energy - fuel logistics

  • MTA New York City Transit - bus operations


Budget

Budget

CRT Purchase/Installation$497,055

Reduced Sulfur Fuel Purchase$761,364

Emissions Testing$228,678

Fuels Matrix Testing$311,826

Technical Support$170,470

Project Management$108,280

Total $2,077,673


Project workplan

PROJECT WORKPLAN

  • Fleet Demonstration

    • In service test of 50 buses for 1 year

  • Emissions Testing

    • Baseline testing

    • Durability testing

  • Fuels Matrix Evaluation

    • Fuel additives

    • Sulfur sensitivity

    • Aromatics content


Fleet demonstration

FLEET DEMONSTRATION

  • 50 buses equipped with CRT systems in revenue service in Manhattan for one year

    • 25 1999 buses with Detroit Diesel Series 50 engines

    • 25 1993 buses with Detroit Diesel 6V92 DDEC engines

  • One entire depot (140 buses) to operate on reduced sulfur fuel for one year (1.2 mill gallons)

  • 4 buses equipped with continuous data loggers; all others will be monitored monthly for changes in engine back-pressure, and fuel economy


Emissions testing

EMISSIONS TESTING

  • 4 buses tested at the beginning of the program

    • 2 w/ DDC Series 50 engine; 2 w/ DDC 6V92 engine

  • Each bus tested with OEM muffler/standard fuel, with OEM muffler/30 ppm sulfur fuel, and with CRT system/30 ppm sulfur fuel

  • Test on chassis dynomometer using CBD and New York bus cycles

  • Collect info on criteria emissions (CO, HC,NOx, PM), plus particle size and toxicity

  • Re-test each bus after 9 - 12 months in service


Chassis dynomometer

CHASSIS DYNOMOMETER


Fuels matrix testing

FUELS MATRIX TESTING

  • Test various fuel formulations on engine dyno using a 1996 DDC Series 50 Urban bus engine

  • Fuel formulations will vary by sulfur content, aromatics content, proprietary additive packages

  • If a new formulations is judged superior to reference reduced sulfur fuel, perform limited field testing

    • Equip 2 Series 50 OC Transpo Buses with CRTs and data loggers, operate for 3 months

    • Chassis dyno emissions test


Engine test cell

ENGINE TEST CELL


Fuel logistics

FUEL LOGISTICS

  • Purchase and use of non-commercial fuel requires special handling

    • Segregated bulk transportation (barge)

    • Segregated bulk storage in NYC region

    • Segregated delivery to depot

  • Project purchased all 1.2 million gallons in a single batch to ensure product consistency

  • Testing fuel came from same batch as fuel used in fleet demonstration

  • Handling is largest share of incremental cost


Current results 6v92

CURRENT RESULTS 6V92

  • Prototype CRT system successfully demonstrated in service for 4 weeks

  • In-service exhaust temperatures at lower margin of acceptable - especially with low ambient temp

  • Improved insulation of exhaust path has helped

  • 3 CRT buses “plugged” in service - root cause under investigation; potential fuel effect unrelated to sulfur

  • Durability test suspended


Current results s50

CURRENT RESULTS S50

  • Prototype testing showed in-service exhaust temperatures to be very acceptable

  • Nine month Fleet demonstration Completed

    • CRT buses have logged over 750,000 miles (up to 40,000 miles/bus)

    • No CRT-related road calls; MBDF of CRT fleet is equivalent to non-CRT buses

    • No back-pressure problems

    • No measured loss of fuel economy

    • 25 CRT buses still in service


Crt installation s50 engine

CRT INSTALLATION S50 Engine

Outlet of CRT

CRT behind heat shield

Inlet to CRT

DDEC Temperature

Port

Temperature and Back pressure

port for data collection


S50 exhaust temperature

S50 EXHAUST TEMPERATURE


S50 exhaust temperature1

S50 EXHAUST TEMPERATURE


S50 back pressure

S50 BACK PRESSURE*

* No load wide open throttle test


Emissions test results s50 on cbd

Emissions Test Results: S50 on CBD

ULSD = 29 -78% Reduction

ULSD + CRT = 88 - 94% Reduction


Emissions test results s50 on nyb

Emissions Test Results: S50 on NYB

93- 98%

Reduction


Future project schedule

FUTURE PROJECT SCHEDULE

  • Resolve 6V92 issues and re-start Fleet Demonstration if possible

  • Conduct Fuels Matrix Testing beginning March 2001

  • Durability emissions testing on-going. Complete and publish results summer 2001.


Nyct plans

NYCT PLANS

  • Based on success of pilot program, NYCT has committed to aggressive implementation of Clean diesel technology fleet-wide

    • Convert entire fleet to ULSD (completed 9/00)

    • Retrofit entire fleet with catalyzed filters (250 installed to date; 3,500+ NLT 12/03)

  • In addition, NYCT will retire all 2-stroke engines NLT 12/03

    • Will require “re-powering” up to 800 buses with new 4-stroke EGR engines


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