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In situ measurements of HCN in a tube furnace with infrared polarization spectroscopy

Sun, Zhiwei LU ; Försth, Michael ; Li, Zhongshan LU ; Li, Bo LU and Aldén, Marcus LU (2011) 10th International Symposium on Fire Safety Science In Fire Safety Science p.279-291
Abstract

Spatially and temporally resolved in situ measurements of HCN in a steady state tube furnace have been performed using mid-infrared polarization spectroscopy (IRPS). Such measurements are important for the understanding of the detailed HCN chemistry, including pyrolysis, gas phase production, and gas phase consumption. The measurements presented here are in agreement with existing models for HCN chemistry. In particular, it was found that high temperatures and good ventilation result in relatively high peak concentrations of HCN inside the tube furnace. At the same time these conditions also result in high consumption rates of HCN in the hot fire effluents. The results indicate that, although the peak concentrations are highest for high... (More)

Spatially and temporally resolved in situ measurements of HCN in a steady state tube furnace have been performed using mid-infrared polarization spectroscopy (IRPS). Such measurements are important for the understanding of the detailed HCN chemistry, including pyrolysis, gas phase production, and gas phase consumption. The measurements presented here are in agreement with existing models for HCN chemistry. In particular, it was found that high temperatures and good ventilation result in relatively high peak concentrations of HCN inside the tube furnace. At the same time these conditions also result in high consumption rates of HCN in the hot fire effluents. The results indicate that, although the peak concentrations are highest for high temperatures and good ventilation conditions, the concentration at the exit of the tube are lower for these conditions than those at lower temperatures and under-ventilated conditions.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Fire chemistry, HCN, Smoke, Spectroscopy, Steady state tube furnace, Toxicity
in
Fire Safety Science
pages
13 pages
conference name
10th International Symposium on Fire Safety Science
conference location
College Park, MD, United States
conference dates
2011-06-19 - 2011-06-24
external identifiers
  • scopus:84863015388
ISSN
1817-4299
DOI
10.3801/IAFSS.FSS.10-279
language
English
LU publication?
yes
id
e8c3f2b6-9196-4df9-bee2-78eb59186e3a
date added to LUP
2022-03-04 17:33:51
date last changed
2022-03-14 10:46:46
@article{e8c3f2b6-9196-4df9-bee2-78eb59186e3a,
  abstract     = {{<p>Spatially and temporally resolved in situ measurements of HCN in a steady state tube furnace have been performed using mid-infrared polarization spectroscopy (IRPS). Such measurements are important for the understanding of the detailed HCN chemistry, including pyrolysis, gas phase production, and gas phase consumption. The measurements presented here are in agreement with existing models for HCN chemistry. In particular, it was found that high temperatures and good ventilation result in relatively high peak concentrations of HCN inside the tube furnace. At the same time these conditions also result in high consumption rates of HCN in the hot fire effluents. The results indicate that, although the peak concentrations are highest for high temperatures and good ventilation conditions, the concentration at the exit of the tube are lower for these conditions than those at lower temperatures and under-ventilated conditions.</p>}},
  author       = {{Sun, Zhiwei and Försth, Michael and Li, Zhongshan and Li, Bo and Aldén, Marcus}},
  issn         = {{1817-4299}},
  keywords     = {{Fire chemistry; HCN; Smoke; Spectroscopy; Steady state tube furnace; Toxicity}},
  language     = {{eng}},
  pages        = {{279--291}},
  series       = {{Fire Safety Science}},
  title        = {{In situ measurements of HCN in a tube furnace with infrared polarization spectroscopy}},
  url          = {{http://dx.doi.org/10.3801/IAFSS.FSS.10-279}},
  doi          = {{10.3801/IAFSS.FSS.10-279}},
  year         = {{2011}},
}