Abstract
The objective of the reported project has been to develop and field test a versatile measurement system for combustion gases based on the FTIR technique. The project has included the following stages: Development of gas sampling methods, Further development of the FTIR technique, Field testing of the measurement system. The development of evaluation routines based on CLS and PLS methods has lead to the conclusion that both methods are well suited for the application in question, which enables an automation of the evaluation procedure. However, the elaboration of versatile and quality controlled methods is time consuming and the application requires a qualified user. With the dilution probe prototype, a satisfactory rejection of particles is achieved at the same time as a good mixing of the dilution gas and the sample gas takes place. Sampling is performed without using a filter at the probe tip. The intended function of the probe requires that most particles can be rejected without giving rise to a too high dilution ratio. This was achieved in the middle and upper part of the CFB boiler. Comparisons of measurement data from field measurements with the developed probe concept and the `conventional` CTH extractive probe show that the
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Johansson, Annika;
Andersson, Christer;
[1]
Thulin, C;
[2]
Karlsson, Maria;
Aamand, L E
[3]
- Vattenfall Utveckling AB, Stockholm (Sweden)
- Swedish National Testing and Research Inst., Boraas (Sweden)
- Chalmers Univ. of Technology, Goeteborg (Sweden)
Citation Formats
Johansson, Annika, Andersson, Christer, Thulin, C, Karlsson, Maria, and Aamand, L E.
Developing of FTIR- and new probe technique for combustion gas analysis; Utveckling av FTIR- och sondteknik foer gasanalys i foerbraenningsrum.
Sweden: N. p.,
1996.
Web.
Johansson, Annika, Andersson, Christer, Thulin, C, Karlsson, Maria, & Aamand, L E.
Developing of FTIR- and new probe technique for combustion gas analysis; Utveckling av FTIR- och sondteknik foer gasanalys i foerbraenningsrum.
Sweden.
Johansson, Annika, Andersson, Christer, Thulin, C, Karlsson, Maria, and Aamand, L E.
1996.
"Developing of FTIR- and new probe technique for combustion gas analysis; Utveckling av FTIR- och sondteknik foer gasanalys i foerbraenningsrum."
Sweden.
@misc{etde_378208,
title = {Developing of FTIR- and new probe technique for combustion gas analysis; Utveckling av FTIR- och sondteknik foer gasanalys i foerbraenningsrum}
author = {Johansson, Annika, Andersson, Christer, Thulin, C, Karlsson, Maria, and Aamand, L E}
abstractNote = {The objective of the reported project has been to develop and field test a versatile measurement system for combustion gases based on the FTIR technique. The project has included the following stages: Development of gas sampling methods, Further development of the FTIR technique, Field testing of the measurement system. The development of evaluation routines based on CLS and PLS methods has lead to the conclusion that both methods are well suited for the application in question, which enables an automation of the evaluation procedure. However, the elaboration of versatile and quality controlled methods is time consuming and the application requires a qualified user. With the dilution probe prototype, a satisfactory rejection of particles is achieved at the same time as a good mixing of the dilution gas and the sample gas takes place. Sampling is performed without using a filter at the probe tip. The intended function of the probe requires that most particles can be rejected without giving rise to a too high dilution ratio. This was achieved in the middle and upper part of the CFB boiler. Comparisons of measurement data from field measurements with the developed probe concept and the `conventional` CTH extractive probe show that the results are in good agreement in many cases, but also that interesting discrepancies exist. Sampling artefacts have been noticed for the gases HCN and SO{sub 2}, where HCN and SO{sub 2} are found in higher concentrations when sampling with the dilution probe. Analyzed concentrations of CO and hydrocarbons (methane, ethene and acetylene) are throughout all the measurements lower when the dilution probe is used. 21 refs, 34 figs, 29 tabs}
place = {Sweden}
year = {1996}
month = {Aug}
}
title = {Developing of FTIR- and new probe technique for combustion gas analysis; Utveckling av FTIR- och sondteknik foer gasanalys i foerbraenningsrum}
author = {Johansson, Annika, Andersson, Christer, Thulin, C, Karlsson, Maria, and Aamand, L E}
abstractNote = {The objective of the reported project has been to develop and field test a versatile measurement system for combustion gases based on the FTIR technique. The project has included the following stages: Development of gas sampling methods, Further development of the FTIR technique, Field testing of the measurement system. The development of evaluation routines based on CLS and PLS methods has lead to the conclusion that both methods are well suited for the application in question, which enables an automation of the evaluation procedure. However, the elaboration of versatile and quality controlled methods is time consuming and the application requires a qualified user. With the dilution probe prototype, a satisfactory rejection of particles is achieved at the same time as a good mixing of the dilution gas and the sample gas takes place. Sampling is performed without using a filter at the probe tip. The intended function of the probe requires that most particles can be rejected without giving rise to a too high dilution ratio. This was achieved in the middle and upper part of the CFB boiler. Comparisons of measurement data from field measurements with the developed probe concept and the `conventional` CTH extractive probe show that the results are in good agreement in many cases, but also that interesting discrepancies exist. Sampling artefacts have been noticed for the gases HCN and SO{sub 2}, where HCN and SO{sub 2} are found in higher concentrations when sampling with the dilution probe. Analyzed concentrations of CO and hydrocarbons (methane, ethene and acetylene) are throughout all the measurements lower when the dilution probe is used. 21 refs, 34 figs, 29 tabs}
place = {Sweden}
year = {1996}
month = {Aug}
}