NH3 Sensor Measurements in Different Engine Applications

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

    Abstract

    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.

    Original languageEnglish
    Article number2018-01-1814
    JournalSAE Technical Paper Series
    Volume2018
    DOIs
    Publication statusPublished - 2018
    MoE publication typeA4 Article in a conference publication
    EventSAE 2018 International Powertrains, Fuels and Lubricants Meeting, FFL 2018 - Heidelberg, Germany
    Duration: 17 Sep 201819 Sep 2018

    Fingerprint

    Engines
    Sensors
    Residual fuels
    Fourier transforms
    Thyristors
    Infrared radiation
    Semiconductor lasers
    Spectrometers
    Ammonia
    Fuel oils
    Exhaust gases
    Ships
    Monitoring
    Dynamometers
    Chassis
    Gas oils
    Urea
    Sulfur

    Cite this

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    title = "NH3 Sensor Measurements in Different Engine Applications",
    abstract = "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.",
    author = "Timo Murtonen and Hannu Vesala and Paivi Koponen and Rasmus Pettinen and Tuula Kajolinna and Olli Antson",
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    NH3 Sensor Measurements in Different Engine Applications. / Murtonen, Timo; Vesala, Hannu; Koponen, Paivi; Pettinen, Rasmus; Kajolinna, Tuula; Antson, Olli.

    In: SAE Technical Paper Series, Vol. 2018, 2018-01-1814, 2018.

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

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    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.

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