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Instantaneous one-dimensional ammonia measurements with femtosecond two-photon laser-induced fluorescence (fs-TPLIF)

Zhang, Dayuan; Gao, Qiang LU ; Li, Bo LU ; Liu, Jixu and Li, Zhongshan LU (2019) In International Journal of Hydrogen Energy
Abstract

Ammonia (NH3) has been identified as a potential hydrogen-carrier fuel with no carbon emissions. Non-intrusive in-situ NH3 diagnostic technique is of great interest. In this work, femtosecond two-photon laser-induced fluorescence (fs-TPLIF) was demonstrated in NH3/N2 mixtures to achieve NH3 measurements. A femtosecond laser at 305 nm was used for two-photon excitation of NH3 to its excited state (X–C′), and the subsequent fluorescence at ~565 nm from transition C′-A was detected. In addition, a detection limit of 730 ppm was achieved in NH3/N2 mixtures. Furthermore, one-dimensional single-shot images of NH3 were obtained in both laminar... (More)

Ammonia (NH3) has been identified as a potential hydrogen-carrier fuel with no carbon emissions. Non-intrusive in-situ NH3 diagnostic technique is of great interest. In this work, femtosecond two-photon laser-induced fluorescence (fs-TPLIF) was demonstrated in NH3/N2 mixtures to achieve NH3 measurements. A femtosecond laser at 305 nm was used for two-photon excitation of NH3 to its excited state (X–C′), and the subsequent fluorescence at ~565 nm from transition C′-A was detected. In addition, a detection limit of 730 ppm was achieved in NH3/N2 mixtures. Furthermore, one-dimensional single-shot images of NH3 were obtained in both laminar and turbulent flow fields. This work is the first attempt of fs-TPLIF for polyatomic molecular gases measurements, and the obtained results indicate that fs-TPLIF could be a promising tool for NH3 measurements.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Ammonia, Femtosecond laser, Laser-induced fluorescence, Spectroscopy
in
International Journal of Hydrogen Energy
publisher
Elsevier
external identifiers
  • scopus:85071301105
ISSN
0360-3199
DOI
10.1016/j.ijhydene.2019.08.012
language
English
LU publication?
yes
id
d46666a8-5fa9-4fed-b5cc-316207d61839
date added to LUP
2019-09-05 10:55:36
date last changed
2019-11-13 05:40:26
@article{d46666a8-5fa9-4fed-b5cc-316207d61839,
  abstract     = {<p>Ammonia (NH<sub>3</sub>) has been identified as a potential hydrogen-carrier fuel with no carbon emissions. Non-intrusive in-situ NH<sub>3</sub> diagnostic technique is of great interest. In this work, femtosecond two-photon laser-induced fluorescence (fs-TPLIF) was demonstrated in NH<sub>3</sub>/N<sub>2</sub> mixtures to achieve NH<sub>3</sub> measurements. A femtosecond laser at 305 nm was used for two-photon excitation of NH<sub>3</sub> to its excited state (X–C′), and the subsequent fluorescence at ~565 nm from transition C′-A was detected. In addition, a detection limit of 730 ppm was achieved in NH<sub>3</sub>/N<sub>2</sub> mixtures. Furthermore, one-dimensional single-shot images of NH<sub>3</sub> were obtained in both laminar and turbulent flow fields. This work is the first attempt of fs-TPLIF for polyatomic molecular gases measurements, and the obtained results indicate that fs-TPLIF could be a promising tool for NH<sub>3</sub> measurements.</p>},
  author       = {Zhang, Dayuan and Gao, Qiang and Li, Bo and Liu, Jixu and Li, Zhongshan},
  issn         = {0360-3199},
  keyword      = {Ammonia,Femtosecond laser,Laser-induced fluorescence,Spectroscopy},
  language     = {eng},
  month        = {08},
  publisher    = {Elsevier},
  series       = {International Journal of Hydrogen Energy},
  title        = {Instantaneous one-dimensional ammonia measurements with femtosecond two-photon laser-induced fluorescence (fs-TPLIF)},
  url          = {http://dx.doi.org/10.1016/j.ijhydene.2019.08.012},
  year         = {2019},
}