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Managing Diesel Particle Emissions through Engine Maintenance - an Australian Perspective

Managing Diesel Particle Emissions through Engine Maintenance - an Australian Perspective. Peter Anyon PM-Tech A Division of MicroCAD Australia Pty Ltd. PM Tech. Chronology. Groundwork - Research / Test Program Key Outcomes of the Test Program Government and Industry Responses

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Managing Diesel Particle Emissions through Engine Maintenance - an Australian Perspective

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  1. Managing Diesel Particle Emissionsthrough Engine Maintenance -an Australian Perspective Peter Anyon PM-Tech A Division of MicroCAD Australia Pty Ltd PM Tech

  2. Chronology Groundwork - Research / Test Program Key Outcomes of the Test Program Government and Industry Responses Impacts on Emissions Developing a Tailpipe DPM Measurement Strategy

  3. Foundations • Intensive testing and evaluation study coordinated by the New South Wales Department of Primary Industry’s Mines Technical Services Division • in conjunction with SIMTARS , NIOSH • supported by external consultants and industry • Aim: “…to find one or more methods for measuring diesel particulate matter (DPM) in the raw exhaust of diesel-powered mining equipment at underground coal mines”.

  4. Test Program Structure (1) Dynamometer Testing comparison of candidate instrument performance and suitability for DPM testing under closely controlled conditions 3 engines (Cat 3306, Kia 4100, Cat 3126) 4 instruments (three laser light-scattering, one pressure drop) tested over 8 steady state and two transient modes results correlated with traditional gravimetric filter method

  5. Test Program Structure (2) Field Testing five New South Wales mines selected as test sites where feasible, multiple instruments were operated in parallel mixture of steady-state and transient tests used tests included free acceleration, idle and acceleration/power modes with torque converter engaged

  6. Key Project Outcomes Test Cycle (Loaded) Simple, 60-second stall test (in gear) including 20 seconds at full throttle against the vehicle’s torque converter

  7. Key Project Outcomes Test Cycle (Free Acceleration) For plant with no torque converter, three full-throttle accelerations (gear in neutral) to governed speed, spaced over 60 seconds

  8. Key Project Outcomes Instrumentation Both laser light scattering photometry and pressure drop techniques were considered practical methods, but both needed further refinement to be applied in the field. Pressure Drop Laser Light Scattering

  9. Government Responses Queensland established government/industry working group to develop implementation measures and test procedures responsibility lies with mines operators to establish effective DPM reduction strategies, which are periodically audited open database established for all mines to input and share test data for benchmarking and development of pass/fail criteria database design/management paid for by mines – performed by SIMTARS (government agency) system will be regulated if voluntary system not effective

  10. Government Responses New South Wales DPM management guidelines (MGD29) published in 2007 ambient DPM limit 0.1mg/m3 elemental carbon (equivalent to 0.16mg/m3 TC or 0.2mg/m3 DPM) require all new engines to have “signature” test before entering service periodical testing done to monitor condition and trigger rectification if DPM exceeds prescribed percentage increase (30% for EPA Tier II or European EPA Stage 2 engines)

  11. Industry Response Queensland virtually all underground coal mines in Queensland now conduct routine DPM testing (usually at 2 or 4 week frequency for all engines operating underground) laser light scattering has been adopted as the standard method of measurement – data is starting to be used used for vehicle access control the government/industry working group is now chaired by industry representative and has moved focus to developing and coordinating system improvements and further research New South Wales Several coal operations now performing regular testing but wide-scale implementation still ramping up

  12. Test Equipment • Laser light scattering instrumentation is now in second generation • Incorporates several years of experience and industry feedback • Simple one-button operation • Automatic test result generation • Simple field calibration and service

  13. Outcomes

  14. Outcomes Typical Test Result Profile

  15. Emission Profile before Maintenance Emission Profile after Maintenance Benefits of Diesel Maintenance Predicted PM Reduction 36%

  16. Mines DPM Program Effectiveness

  17. Summary • DPM measurement is now broadly accepted as a necessary and integral part of mine ventilation management. • Test cycles and test equipment have proved to be practical and effective • Continuing dialogue and cooperation between and within industry and government has been essential for effective program implementation

  18. Last Word “IF YOU CAN’T MEASURE IT YOU CAN’T FIX IT” USA Contact Gerd Huber President MAHA USA 359 Wando Place Dr, Unit E Mount Pleasant, SC 29464 (843) 352-1393 gerd.huber@maha-usa.com

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