TY - JOUR
T1 - NH3 Sensor Measurements in Different Engine Applications
AU - Murtonen, Timo
AU - Vesala, Hannu
AU - Koponen, Paivi
AU - Pettinen, Rasmus
AU - Kajolinna, Tuula
AU - Antson, Olli
N1 - Funding Information:
The authors would like to thank VTT employees for their work in laboratory and field experiments. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 634135.
Publisher Copyright:
© 2018 SAE International. All Rights Reserved.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - In this study the exhaust gas ammonia (NH3) concentrations from different exhaust sources were measured with an ammonia sensor. The aim of the study was to verify whether an NH3 sensor has the potential to be used for monitoring and control purposes for SCR systems. Measurements were performed in laboratory and field conditions and comparison was made between Fourier Transform Infrared (FTIR) and Laser Diode Spectrometer (LDS) measurement techniques. With heavy-duty vehicles, a comparison between an LDS, FTIR and NH3 sensor was performed on a heavy-duty chassis dynamometer. Measurements were performed at steady speeds using a World Harmonized Vehicle Cycle (WHVC) and Braunschweig test cycles. The urea injection rate for the SCR system was varied to generate different ammonia levels in the exhaust gas. NH3 measurements with FTIR and NH3 sensor were performed on large cruise ships using heavy fuel oil (HFO) and marine gas oil (MGO) as fuels. Also, long-term trials on two cruise ships were conducted using heavy fuel oil and low sulphur (S < 0.1%) residual fuel. The results indicate that the NH3 sensor has the potential for being used in different applications for monitoring and controlling the SCR system. Measurement results with the sensor were in good correlation with LDS and FTIR techniques and, in dynamic measurements, the sensor response was very fast.
AB - In this study the exhaust gas ammonia (NH3) concentrations from different exhaust sources were measured with an ammonia sensor. The aim of the study was to verify whether an NH3 sensor has the potential to be used for monitoring and control purposes for SCR systems. Measurements were performed in laboratory and field conditions and comparison was made between Fourier Transform Infrared (FTIR) and Laser Diode Spectrometer (LDS) measurement techniques. With heavy-duty vehicles, a comparison between an LDS, FTIR and NH3 sensor was performed on a heavy-duty chassis dynamometer. Measurements were performed at steady speeds using a World Harmonized Vehicle Cycle (WHVC) and Braunschweig test cycles. The urea injection rate for the SCR system was varied to generate different ammonia levels in the exhaust gas. NH3 measurements with FTIR and NH3 sensor were performed on large cruise ships using heavy fuel oil (HFO) and marine gas oil (MGO) as fuels. Also, long-term trials on two cruise ships were conducted using heavy fuel oil and low sulphur (S < 0.1%) residual fuel. The results indicate that the NH3 sensor has the potential for being used in different applications for monitoring and controlling the SCR system. Measurement results with the sensor were in good correlation with LDS and FTIR techniques and, in dynamic measurements, the sensor response was very fast.
UR - http://www.scopus.com/inward/record.url?scp=85056813680&partnerID=8YFLogxK
U2 - 10.4271/2018-01-1814
DO - 10.4271/2018-01-1814
M3 - Article in a proceedings journal
AN - SCOPUS:85056813680
SN - 0148-7191
VL - 2018
JO - SAE Technical Paper Series
JF - SAE Technical Paper Series
M1 - 2018-01-1814
T2 - SAE 2018 International Powertrains, Fuels and Lubricants Meeting, FFL 2018
Y2 - 17 September 2018 through 19 September 2018
ER -
