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UK Particulate Measurement Programme (PMP): A Near US 2007 Approach to Heavy Duty Diesel Particulate Measurements - Comparison with the Standard European Method
Technical Paper
2004-01-1990
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes a practical approach used within the UK contribution to the UNECE PMP study in adopting some of the recommendations stated in the draft 2007 regulations for the measurement of particulate mass emissions from heavy-duty diesel engines in the US. This approach was named “2007PM” but the intention was to align rather than fully comply with the draft requirements for the US.
In the PMP test work, four main changes were made to the standard European method of particulate emissions measurement (SPM). These were adopted as the 2007PM method. These were the application of a cyclone pre-classifier to 2007PM - with a 50% cut-size at 2.5μm, the use of a single 47mm filter rather than primary and back-up filters, close control of the filter face temperature to 47°C +/-5°C by heating of the dilution air and an increased filter face velocity. Measurements were predominantly made from aerosols generated by engines equipped with Diesel Particulate Filters (DPFs).
Repeatability day-to-day and within a single day was considerably better with 2007PM than with the SPM method. These improvements were attributed to the removal of the back-up filter and the difference in filter face velocity (or sample flow rate). A further study revealed that filter face velocity was less important than flow rate and filter area.
Overall, the 2007PM system proved to be applicable to both low levels of carbonaceous and post-DPF aerosols. However, mass results from 2007PM were typically lower than observed from simultaneously sampled SPM measurements, though this difference could be virtually eliminated by reintroducing a back-up filter. This suggests that any switch to 2007PM may require a redefinition of engine emissions limits, or the retention of a back-up filter - though this may reduce the level of improvement observed.
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Andersson, J., Clarke, D., and Watson, J., "UK Particulate Measurement Programme (PMP): A Near US 2007 Approach to Heavy Duty Diesel Particulate Measurements - Comparison with the Standard European Method," SAE Technical Paper 2004-01-1990, 2004, https://doi.org/10.4271/2004-01-1990.Also In
References
- NanoMet an option for supplementing the legal exhaust gas measuring procedures for the diesel vehicles with particle filters (DPF) Preliminary research phase 1, technical report, Swiss contribution to GRPE Particulate Measurement Programme, Paper CH2 Czerwinski J et al
- Final Report Particle Measurement Programme (PMP) Final Report of Phase 1 of Module 3: Development of Candidate Systems - Light Duty Vehicles Dickens C J Payne E L Reading A H Feest E A
- UK Particle Measurement Programme - Heavy Duty Methodology Development Final Report Andersson J D
- New health-effect-related particle measurement methodology for diesel and gasoline engines-amendment of the exhaust gas regulations regarding passenger cars and light duty trucks - Euro 5 Schulte L-E Pohlmann G
- Comparative Study of Particle Measurement Systems for Future Type Approval Applications Swiss contribution to GRPE Particulate Measurement Programme, Paper CH5 Mohr M. Lehmann U.
- Particle Measurement Programme (PMP) Final Report of Phase II: Critical assessment of candidate measuring systems for application to the type approval of light-duty vehicles Feest E. A. Marshall I. A. Norris J. O. W. Reading A. H. Sandbach E. L.
- UK Particle Measurement Programme Phase 2 - Heavy Duty Methodology Development Final Report Andersson J D
- Report of the GRPE Particle Measurement Programme (PMP) Government Sponsored Work Programmes 2003
- US Code of Federal Regulations (CFR) Title 40 July 1st 2001
- Directive 91/542/EC Vehicle Emissions Legislation Heavy Duty Vehicles
- SAE 2000-01-2850 DETR/SMMT/Concawe Particle Research Programme: Sampling And Measurement Experiences Andersson et al
- Particle Emissions From a EU 3 Heavy-duty Diesel Engine with Catalyst-based Diesel Particle Filter and Selective Catalytic Reduction System: Size, Number, Mass & Chemistry Andersson Jon D Jemma Carl A Bosteels Dirk Searles Robert A Aachener Kolloquium Fahrzeug- und Motorentechnik 2002