Intercomparison of real-time tailpipe ammonia measurements from vehicles tested over the new world-harmonized light-duty vehicle test cycle (WLTC)

Environmental Science and Pollution Research International
Ricardo Suarez-BertoaC Astorga

Abstract

Four light-duty vehicles (two diesel, one flex-fuel, and one gasoline vehicle) were tested as part of an intercomparison exercise of the world-harmonized light-duty vehicle test procedure (WLTP) aiming at measuring real-time ammonia emissions from the vehicles' raw exhaust at the tailpipe. The tests were conducted in the Vehicle Emission Laboratory (VELA) at the European Commission Joint Research Centre (EC-JRC), Ispra, Italy. HORIBA, CGS, and the Sustainable Transport Unit of the Joint Research Centre (JRC) took part in the measurement and analysis of the four vehicles' exhaust emissions over the world-harmonized light-duty vehicle test cycle class 3, version 5.3 using a HORIBA MEXA 1400 QL-NX, a CGS BLAQ-Sys, and the JRC Fourier transform infrared spectrometer, respectively. The measured ammonia concentrations and the emission profiles revealed that these three instruments are suitable to measure ammonia from the vehicles' raw exhaust, presenting no significant differences. Furthermore, results showed that measurement of ammonia from the vehicle exhaust using online systems can be performed guaranteeing the reproducibility and repeatability of the results. While no ammonia was detected for any of the two diesel vehicles (even...Continue Reading

References

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Citations

Jul 18, 2016·Environmental Science and Pollution Research International·Marcelo S Vieira-FilhoAdalgiza Fornaro
Oct 1, 2016·Journal of the Air & Waste Management Association·Ha T TrinhNorimichi Takenaka
May 16, 2017·Environmental Science & Technology·Xiaolin TengXiaohong Yao
Apr 22, 2018·Environmental Science and Pollution Research International·Artur JaworskiPaweł Woś

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Software Mentioned

BLAQ
Sys

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