High-resolution absorption measurements of NH3 at high temperatures: 2100–5500 cm−1

Emma J. Barton; Sergei N. Yurchenko; Jonathan Tennyson; Sønnik Clausen; Alexander Fateev

doi:10.1016/j.jqsrt.2016.11.009

High-resolution absorption measurements of NH₃ at high temperatures: 2100–5500 cm⁻¹

Emma J. Barton, Sergei N. Yurchenko, Jonathan Tennyson, Sønnik Clausen, Alexander Fateev

University College London

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

High-resolution absorption spectra of NH3 in the region 2100–5500 cm⁻¹ at 1027 °C and approximately atmospheric pressure (1045±3 mbar) are measured. An NH₃ concentration of 10% in volume fraction is used in the measurements. Spectra are recorded in a high-temperature gas-flow cell using a Fourier Transform Infrared (FTIR) spectrometer at a nominal resolution of 0.09 cm⁻¹. The spectra are analysed by comparison to a variational line list, BYTe, and experimental energy levels determined using the MARVEL procedure. 2308 lines have been assigned to 45 different bands, of which 1755 and 15 have been assigned or observed for the first time in this work.

Original language	English
Journal	Journal of Quantitative Spectroscopy & Radiative Transfer
Volume	189
Pages (from-to)	60-65
Number of pages	6
ISSN	0022-4073
DOIs	https://doi.org/10.1016/j.jqsrt.2016.11.009
Publication status	Published - 2017

Keywords

High temperature
Ammonia
Absorption
FTIR spectroscopy
High-temperature flow gas cell
BYTe
Line assignments

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10.1016/j.jqsrt.2016.11.009

https://arxiv.org/pdf/1612.07930.pdfLicence: CC BY-NC-ND

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Cite this

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title = "High-resolution absorption measurements of NH3 at high temperatures: 2100–5500 cm−1 ",

abstract = "High-resolution absorption spectra of NH3 in the region 2100–5500 cm−1 at 1027 °C and approximately atmospheric pressure (1045±3 mbar) are measured. An NH3 concentration of 10% in volume fraction is used in the measurements. Spectra are recorded in a high-temperature gas-flow cell using a Fourier Transform Infrared (FTIR) spectrometer at a nominal resolution of 0.09 cm−1. The spectra are analysed by comparison to a variational line list, BYTe, and experimental energy levels determined using the MARVEL procedure. 2308 lines have been assigned to 45 different bands, of which 1755 and 15 have been assigned or observed for the first time in this work.",

keywords = "High temperature, Ammonia, Absorption, FTIR spectroscopy, High-temperature flow gas cell, BYTe, Line assignments",

author = "Barton, {Emma J.} and Yurchenko, {Sergei N.} and Jonathan Tennyson and S{\o}nnik Clausen and Alexander Fateev",

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language = "English",

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journal = "Journal of Quantitative Spectroscopy & Radiative Transfer",

issn = "0022-4073",

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T1 - High-resolution absorption measurements of NH3 at high temperatures: 2100–5500 cm−1

AU - Barton, Emma J.

AU - Yurchenko, Sergei N.

AU - Tennyson, Jonathan

AU - Clausen, Sønnik

AU - Fateev, Alexander

PY - 2017

Y1 - 2017

N2 - High-resolution absorption spectra of NH3 in the region 2100–5500 cm−1 at 1027 °C and approximately atmospheric pressure (1045±3 mbar) are measured. An NH3 concentration of 10% in volume fraction is used in the measurements. Spectra are recorded in a high-temperature gas-flow cell using a Fourier Transform Infrared (FTIR) spectrometer at a nominal resolution of 0.09 cm−1. The spectra are analysed by comparison to a variational line list, BYTe, and experimental energy levels determined using the MARVEL procedure. 2308 lines have been assigned to 45 different bands, of which 1755 and 15 have been assigned or observed for the first time in this work.

AB - High-resolution absorption spectra of NH3 in the region 2100–5500 cm−1 at 1027 °C and approximately atmospheric pressure (1045±3 mbar) are measured. An NH3 concentration of 10% in volume fraction is used in the measurements. Spectra are recorded in a high-temperature gas-flow cell using a Fourier Transform Infrared (FTIR) spectrometer at a nominal resolution of 0.09 cm−1. The spectra are analysed by comparison to a variational line list, BYTe, and experimental energy levels determined using the MARVEL procedure. 2308 lines have been assigned to 45 different bands, of which 1755 and 15 have been assigned or observed for the first time in this work.

KW - High temperature

KW - Ammonia

KW - Absorption

KW - FTIR spectroscopy

KW - High-temperature flow gas cell

KW - BYTe

KW - Line assignments

U2 - 10.1016/j.jqsrt.2016.11.009

DO - 10.1016/j.jqsrt.2016.11.009

M3 - Journal article

SN - 0022-4073

VL - 189

SP - 60

EP - 65

JO - Journal of Quantitative Spectroscopy & Radiative Transfer

JF - Journal of Quantitative Spectroscopy & Radiative Transfer

ER -