Abstract

Spontaneous Raman scattering was applied for quantitative temperature measurements in turbulent methanol spray flames. Possible interferences from laser-induced breakdown and elastic light scattered from the fuel drops were discriminated against by optoacoustic means. Polycyclic aromatic hydrocarbons were found to be a negligible source of fluorescence interference. The capability of measuring the probability-density function of temperature in a turbulent nonsooting spray flame with an accuracy of ±75 K was demonstrated. The technique appears simpler and less expensive than other spectroscopic approaches.

© 1996 Optical Society of America

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References

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  1. G. M. Faeth, Prog. Energy Combust. Sci. 13, 293 (1987).
    [CrossRef]
  2. A. N. Karpetis, A. Gomez, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.
  3. G. Grünefeld, V. Beushausen, P. Andresen, W. Hentschel, Appl. Phys. B 58, 333 (1994).
    [CrossRef]
  4. F. Takahashi, W. J. Schmoll, D. L. Switzer, D. Shouse, in Twenty-Fifth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1994), p. 183.
    [CrossRef]
  5. A. C. Eckbreth, Laser Diagnositics for Combustion Temperature and Species (Abacus, Cambridge, Mass., 1988).
  6. E. P. Hassel, Appl. Opt. 32, 4058 (1993).
    [PubMed]
  7. R. K. Chang, J. H. Eickmans, W. F. Hsieh, C. F. Wood, J. Z. Zhang, J. B. Zheng, Appl. Opt. 27, 2377 (1988).
    [CrossRef] [PubMed]
  8. Y. D’Angelo, I. Silverman, L. P. Gao, A. Gomez, M. D. Smooke, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

1994 (1)

G. Grünefeld, V. Beushausen, P. Andresen, W. Hentschel, Appl. Phys. B 58, 333 (1994).
[CrossRef]

1993 (1)

1988 (1)

1987 (1)

G. M. Faeth, Prog. Energy Combust. Sci. 13, 293 (1987).
[CrossRef]

Andresen, P.

G. Grünefeld, V. Beushausen, P. Andresen, W. Hentschel, Appl. Phys. B 58, 333 (1994).
[CrossRef]

Beushausen, V.

G. Grünefeld, V. Beushausen, P. Andresen, W. Hentschel, Appl. Phys. B 58, 333 (1994).
[CrossRef]

Chang, R. K.

D’Angelo, Y.

Y. D’Angelo, I. Silverman, L. P. Gao, A. Gomez, M. D. Smooke, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

Eckbreth, A. C.

A. C. Eckbreth, Laser Diagnositics for Combustion Temperature and Species (Abacus, Cambridge, Mass., 1988).

Eickmans, J. H.

Faeth, G. M.

G. M. Faeth, Prog. Energy Combust. Sci. 13, 293 (1987).
[CrossRef]

Gao, L. P.

Y. D’Angelo, I. Silverman, L. P. Gao, A. Gomez, M. D. Smooke, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

Gomez, A.

Y. D’Angelo, I. Silverman, L. P. Gao, A. Gomez, M. D. Smooke, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

A. N. Karpetis, A. Gomez, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

Grünefeld, G.

G. Grünefeld, V. Beushausen, P. Andresen, W. Hentschel, Appl. Phys. B 58, 333 (1994).
[CrossRef]

Hassel, E. P.

Hentschel, W.

G. Grünefeld, V. Beushausen, P. Andresen, W. Hentschel, Appl. Phys. B 58, 333 (1994).
[CrossRef]

Hsieh, W. F.

Karpetis, A. N.

A. N. Karpetis, A. Gomez, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

Schmoll, W. J.

F. Takahashi, W. J. Schmoll, D. L. Switzer, D. Shouse, in Twenty-Fifth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1994), p. 183.
[CrossRef]

Shouse, D.

F. Takahashi, W. J. Schmoll, D. L. Switzer, D. Shouse, in Twenty-Fifth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1994), p. 183.
[CrossRef]

Silverman, I.

Y. D’Angelo, I. Silverman, L. P. Gao, A. Gomez, M. D. Smooke, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

Smooke, M. D.

Y. D’Angelo, I. Silverman, L. P. Gao, A. Gomez, M. D. Smooke, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

Switzer, D. L.

F. Takahashi, W. J. Schmoll, D. L. Switzer, D. Shouse, in Twenty-Fifth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1994), p. 183.
[CrossRef]

Takahashi, F.

F. Takahashi, W. J. Schmoll, D. L. Switzer, D. Shouse, in Twenty-Fifth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1994), p. 183.
[CrossRef]

Wood, C. F.

Zhang, J. Z.

Zheng, J. B.

Appl. Opt. (2)

Appl. Phys. B (1)

G. Grünefeld, V. Beushausen, P. Andresen, W. Hentschel, Appl. Phys. B 58, 333 (1994).
[CrossRef]

Prog. Energy Combust. Sci. (1)

G. M. Faeth, Prog. Energy Combust. Sci. 13, 293 (1987).
[CrossRef]

Other (4)

A. N. Karpetis, A. Gomez, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

F. Takahashi, W. J. Schmoll, D. L. Switzer, D. Shouse, in Twenty-Fifth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1994), p. 183.
[CrossRef]

A. C. Eckbreth, Laser Diagnositics for Combustion Temperature and Species (Abacus, Cambridge, Mass., 1988).

Y. D’Angelo, I. Silverman, L. P. Gao, A. Gomez, M. D. Smooke, presented at the Eastern States Section/Combustion Institute Fall Meeting, October 1995.

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Figures (3)

Fig. 1
Fig. 1

(a) Scatter plot of the signals before rejection. (b) Scatter plot of the signals after rejection.

Fig. 2
Fig. 2

Stokes signal distributions (counts versus voltage) with and without spectral baseline subtraction.

Fig. 3
Fig. 3

Temperature distribution in a turbulent spray flame.

Equations (3)

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N S / N AS = I S / I AS = ( λ S / λ AS ) - 4 exp ( h c ω / k T ) ,
α V S / V AS = ( λ S / λ AS ) - 4 exp ( h c ω ¯ / k T ) .
V S , AS ( T ) / V S , AS ( T ) T / T exp ( - ν h ω ¯ c / k T ) × [ 1 - exp ( - h ω ¯ c / k T ) ] ,

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