| Zugriffsnummer | 50362 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | TDLAS spectrometer for the quantification of ammonia under elevated temperature and pressure |
| Autor(in); Institution |
Zhu, Denghao; 3.3, Physikalische Chemie, PTB-Braunschweig
Agarwal, Sumit; 3.3, Physikalische Chemie, PTB-Braunschweig
Seifert, Leopold; 3.3, Physikalische Chemie, PTB-Braunschweig
Shu, Bo; 3.3, Physikalische Chemie, PTB-Braunschweig
Fernandes, Ravi; 3.3, Physikalische Chemie, PTB-Braunschweig
Qu, Zhechao; 3.3, Physikalische Chemie, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of the 29th ICDERS (2023):(2023), 1 - 6 |
| Artikelnummer | 167 |
| URL | |
| Konferenzangaben | The 29th International Colloquium on the Dynamics of Explosions and Reactive Systems (ICDERS 2023), Siheung, 23-28, July, 2023, Korea |
| Zusammenfassung | A mid-infrared quantum cascade laser (Mid-IR QCL) based tunable diode laser absorption spectroscopy (TDLAS) spectrometer for dynamic quantification of ammonia (NH3) was developed. We report for the first time comprehensive spectroscopic parameters of NH3 near 1084.6 cm-1, including pressure broadening coefficients for six NH3 transition lines and cross-section data at elevated pressures and temperatures. The N3-Ar pressure broadening experiments were performed in a gas cell, and the measured NH3-Ar pressure broadening coefficients were used to determine the NH3 mole fraction. The cross-section experiments were performed in a shock tube at elevated temperatures and pressures. As an application scenario, this cross-section data set was used to quantify the NH3 mole fraction during the NH3 oxidation in the shock tube. The quantified NH3 mole fraction was compared to predictions by chemical kinetic mechanisms and demonstrated its use in validating these mechanisms. |
| Kostenfreier Zugang | Freier Zugang |
| Themenbereich der Metrologie | Metrologie in der Chemie und Stoffeigenschaften |
| Innovationscluster | Umwelt und Klima |
Zitierung
Zhu, D., Agarwal, S., Seifert, L., Shu, B., Fernandes, R., & Qu, Z. (2023). TDLAS spectrometer for the quantification of ammonia under elevated temperature and pressure. The 29th International Colloquium on the Dynamics of Explosions and Reactive Systems (ICDERS 2023), Siheung, 23-28, July, 2023, Korea.