Authors: Medwell, Paul R.¹; Chan, Qing N.²; Kalt, Peter A.M.³; Alwahabi, Zeyad T.⁴; Dally, Bassam B.³; Nathan, Graham J.³

Source: Applied Spectroscopy, Volume 64, Issue 2, Pages 36A-62A and 141-243, (February 2010) , pp. 173-176(4)

Publisher: Society for Applied Spectroscopy

Abstract:

This work investigates the first demonstration of nonlinear regime two-line atomic fluorescence (NTLAF) thermometry in laminar non-premixed flames. The results show the expediency of the technique in the study of the reaction zone and reveals interesting findings about the indium atomization process. Indium fluorescence is observed to be strongest at the flame-front, where the temperature exceeds 1000 K. The uncertainty in the deduced temperature measurement is ∼6%. The temperature profile across the reaction zone shows good agreement with laminar flame calculations. The advantages and inherent limitations of the technique are discussed.

Keywords: TWO-LINE ATOMIC FLUORESCENCE; TLAF; THERMOMETRY; INDIUM; NON-PREMIXED FLAMES

Document Type: Research article

DOI: http://dx.doi.org/10.1366/000370210790619573

Affiliations: 1: School of Mechanical Engineering, The University of Adelaide, S.A. 5005 Australia; Centre for Energy Technology, The University of Adelaide, S.A. 5005 Australia. paul.medwell@adelaide.edu.au 2: School of Mechanical Engineering, The University of Adelaide, S.A. 5005 Australia, School of Chemical Engineering, The University of Adelaide, S.A. 5005 Australia; Centre for Energy Technology, The University of Adelaide, S.A. 5005 Australia 3: School of Mechanical Engineering, The University of Adelaide, S.A. 5005 Australia; Centre for Energy Technology, The University of Adelaide, S.A. 5005 Australia 4: School of Chemical Engineering, The University of Adelaide, S.A. 5005 Australia; Centre for Energy Technology, The University of Adelaide, S.A. 5005 Australia

Publication date: 2010-02-01

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