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Heavy-duty Engine Particulate Emissions: Application of PMP Methodology to Measure Particle Number and Particulate Mass
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2008 by SAE International in United States
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During a test programme on a modern heavy-duty engine, measurements were made at engine-out and tailpipe of particle number and particulate mass using the draft heavy-duty inter-laboratory correlation exercise guide prepared by the UN-ECE Particle Measurement Programme (PMP)1. In addition to the PMP measurements, the elemental carbon content of the particulate matter from this programme was analysed using thermogravimetric analysis of separate filters.
The particle number measurement system proved to provide a reliable and repeatable measurement procedure. Test results over a variety of operational cycles showed a reduction in particle numbers of some 3 orders of magnitude. Particle number emissions were of similar magnitude regardless of the test cycle. Background-corrected particulate mass emissions results using the partial flow dilution method showed emissions levels below 5mg/kWh over all the transient cycles tested.
CitationMay, J., Bosteels, D., Such, C., Nicol, A. et al., "Heavy-duty Engine Particulate Emissions: Application of PMP Methodology to Measure Particle Number and Particulate Mass," SAE Technical Paper 2008-01-1176, 2008, https://doi.org/10.4271/2008-01-1176.
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