Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Spontaneous anti-Stokes Raman probe for gas temperature measurements in industrial furnaces

Not Accessible

Your library or personal account may give you access

Abstract

A compact, pulsed Nd:YAG laser-based instrument has been built to measure in situ absolute gas temperatures in large industrial furnaces by use of spontaneous anti-Stokes Raman scattering. The backscattering configuration was used to simplify the optics alignment and increase signal-to-noise ratios. Gated signal detection significantly reduced the background emission that is found in combustion environments. The anti-Stokes instead of the Stokes component was used to eliminate contributions to spectra from cold atmospheric nitrogen. The system was evaluated in a methane/air flame and in a bench-top oven, and the technique was found to be a reliable tool for nonintrusive absolute temperature measurements with relatively clean gas streams. A water-cooled insertion probe was integrated with the Raman system for measurement of the temperature profiles inside an industrial furnace. Gas temperatures near 1500–1800 K at atmospheric pressure in an industrial furnace were inferred by fitting calculated profiles to experimental spectra with a standard deviation of less than 1% for averaging times of ∼200 s. The temperatures inferred from Raman spectra are in good agreement with data recorded with a thermocouple probe.

© 1999 Optical Society of America

Full Article  |  PDF Article
More Like This
Comparison of coherent anti-Stokes Raman-scattering thermometry with thermocouple measurements and model predictions in both natural-gas and coal-dust flames

Rainer Lückerath, Michael Woyde, Wolfgang Meier, Winfried Stricker, Uwe Schnell, Hans-Christoph Magel, Jürgen Görres, Hartmut Spliethoff, and Hartmut Maier
Appl. Opt. 34(18) 3303-3312 (1995)

Comparison of gas temperatures measured by coherent anti-Stokes Raman spectroscopy (CARS) of O2 and N2

Thomas A. Reichardt, Paul E. Schrader, and Roger L. Farrow
Appl. Opt. 40(6) 741-747 (2001)

Gas phase temperature measurements in the liquid and particle regime of a flame spray pyrolysis process using O2-based pure rotational coherent anti-Stokes Raman scattering

Sascha R. Engel, Andreas F. Koegler, Yi Gao, Daniel Kilian, Michael Voigt, Thomas Seeger, Wolfgang Peukert, and Alfred Leipertz
Appl. Opt. 51(25) 6063-6075 (2012)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved