Apparatus for studying premixed laminar flames using mass spectrometry and fiber-optic spectrometry
(1990) In Review of Scientific Instruments 61(3). p.1029-1037- Abstract
An integrated flat-flame/ microprobe sampling quadrupole mass spectrometer system, complemented by optical spectrometry based on optical fibers, is presented. The short microprobe sampling line (total 25 cm) is directly connected to an open ion source closely flanked by two nude cryopumps (900 l/s) yielding a background pressure of 10-9 Torr and a sampling pressure of about 10-5 Torr. Due to this improved microprobe system, mass spectrometry can be used for analysis of stable species (including fuel, O 2, H2O, CO2, CO, and Ar) with less disturbance of the sample than with a conventional microprobe with a back pressure of about 1 Torr. Optical spectrometry is used for the study of... (More)
An integrated flat-flame/ microprobe sampling quadrupole mass spectrometer system, complemented by optical spectrometry based on optical fibers, is presented. The short microprobe sampling line (total 25 cm) is directly connected to an open ion source closely flanked by two nude cryopumps (900 l/s) yielding a background pressure of 10-9 Torr and a sampling pressure of about 10-5 Torr. Due to this improved microprobe system, mass spectrometry can be used for analysis of stable species (including fuel, O 2, H2O, CO2, CO, and Ar) with less disturbance of the sample than with a conventional microprobe with a back pressure of about 1 Torr. Optical spectrometry is used for the study of emission from important radical species (such as C2, CH, and OH). The system is proposed as a complement to more conventional flat-flame/MBMS systems in which the sampling cone can effect the experimental system. Details are provided concerning the configuration of the whole system ranging from gas delivery to data evaluation. Test data are presented for a 16% methanol/68% oxygen/16% argon flame studied at a pressure of 40 Torr, to elucidate the special features of this system.
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- author
- Olsson, Jim O. ; Andersson, Lars L. LU ; Lenner, Magnus and Simonson, Margaret LU
- publishing date
- 1990
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Review of Scientific Instruments
- volume
- 61
- issue
- 3
- pages
- 9 pages
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:0001606225
- ISSN
- 0034-6748
- DOI
- 10.1063/1.1141472
- language
- English
- LU publication?
- no
- additional info
- Copyright: Copyright 2007 Elsevier B.V., All rights reserved.
- id
- 1d361619-3bd8-4d9c-8936-f18d733136cb
- date added to LUP
- 2021-09-29 14:12:31
- date last changed
- 2021-12-07 14:36:05
@article{1d361619-3bd8-4d9c-8936-f18d733136cb, abstract = {{<p>An integrated flat-flame/ microprobe sampling quadrupole mass spectrometer system, complemented by optical spectrometry based on optical fibers, is presented. The short microprobe sampling line (total 25 cm) is directly connected to an open ion source closely flanked by two nude cryopumps (900 l/s) yielding a background pressure of 10<sup>-9</sup> Torr and a sampling pressure of about 10<sup>-5</sup> Torr. Due to this improved microprobe system, mass spectrometry can be used for analysis of stable species (including fuel, O <sub>2</sub>, H<sub>2</sub>O, CO<sub>2</sub>, CO, and Ar) with less disturbance of the sample than with a conventional microprobe with a back pressure of about 1 Torr. Optical spectrometry is used for the study of emission from important radical species (such as C<sub>2</sub>, CH, and OH). The system is proposed as a complement to more conventional flat-flame/MBMS systems in which the sampling cone can effect the experimental system. Details are provided concerning the configuration of the whole system ranging from gas delivery to data evaluation. Test data are presented for a 16% methanol/68% oxygen/16% argon flame studied at a pressure of 40 Torr, to elucidate the special features of this system.</p>}}, author = {{Olsson, Jim O. and Andersson, Lars L. and Lenner, Magnus and Simonson, Margaret}}, issn = {{0034-6748}}, language = {{eng}}, number = {{3}}, pages = {{1029--1037}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Review of Scientific Instruments}}, title = {{Apparatus for studying premixed laminar flames using mass spectrometry and fiber-optic spectrometry}}, url = {{http://dx.doi.org/10.1063/1.1141472}}, doi = {{10.1063/1.1141472}}, volume = {{61}}, year = {{1990}}, }