| Detection of flame radicals using light-emitting diodes. | |
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MedLine Citation:
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PMID: 21144149 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Lasers are common tools in the field of combustion diagnostics. In some respects, however, they have disadvantages. Therefore, there is a need for new light sources delivering radiation in the required wavelength regions with high stability and reliability at low cost. Light-emitting diodes (LED) in the near- and mid-infrared spectral region have proven their potential for spectroscopic applications in the past. In the present work we demonstrate the feasibility of using ultraviolet LEDs for flame diagnostics. For this purpose, OH and CH radicals are detected in premixed methane/air flames. The LED emission is found to be stable after thermal equilibrium is reached. This was the case after a warming-up period in the order of minutes. The spectral characteristics were stable during a 24-h test. |
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Authors:
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Stefan Schorsch; Johannes Kiefer; Alfred Leipertz; Zhongshan Li; Marcus Aldén |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Applied spectroscopy Volume: 64 ISSN: 1943-3530 ISO Abbreviation: Appl Spectrosc Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0372406 Medline TA: Appl Spectrosc Country: United States |
Other Details:
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Languages: eng Pagination: 1330-4 Citation Subset: IM |
Affiliation:
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Lehrstuhl für Technische Thermodynamik and Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, Germany; Separation Processes Laboratory, ETH Zurich, Sonneggstrasse 3, 8092 Zürich, Switzerland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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