| Titel: | Mid-IR ICL based TDLAS spectrometer dedicated to monitor HCl concentration in combustion emissions |
| Autoren: |
Qu, Zhechao, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4, Analytische Chemie der Gasphase Werhahn, Olav, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4, Analytische Chemie der Gasphase Ebert, Volker, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4, Analytische Chemie der Gasphase |
| Beitragende: | HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887 |
| Seiten: | 5 |
| Sprache: | en |
| DOI: | 10.7795/810.20191119A |
| Art der Ressource: | Text / Article |
| Herausgeber: | Physikalisch-Technische Bundesanstalt (PTB) |
| Rechte: | Download for personal/private use only, if your national copyright law allows this kind of use. |
| Daten: |
Verfügbar: 2019-11-19 |
| Datei: |
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| Schlagworte | TDLAS ; HCl spectrometer ; combustion emission ; Mid-IR |
| Zusammenfassung: | We present our direct tunable diode laser absorption spectroscopy (dTDLAS) approach targeting accurate HCl measurements in different matrices motivated by combustion emissions such as large-scale power stations or biomass burning domestic boilers. The system is based on a Mid-IR interband cascade laser (ICL) at 3.6 μm probing a HCl transition line in its fundamental band in a 38 cm single pass cell. The dTDLAS system is projected to directly derive absolute HCl concentrations in hot gas plumes with enriched H2O vapor and CO2. The system achieves a noise-equivalent (1σ) sensitivity of 1.0×10−5 cm−1Hz−1/2 for HCl. Integration over 60 s yields a sensitivity of 38 ppb at a meter path length. |
| Zitierform: | Qu, Zhechao ; Werhahn, Olav ; Ebert, Volker. Mid-IR ICL based TDLAS spectrometer dedicated to monitor HCl concentration in combustion emissions, 2019. Physikalisch-Technische Bundesanstalt (PTB). DOI: https://doi.org/10.7795/810.20191119A |