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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 33 — Nov. 20, 2009
  • pp: 6492–6500

Two-color-absorption sensor for time-resolved measurements of gasoline concentration and temperature

Sung Hyun Pyun, Jason M. Porter, Jay B. Jeffries, Ronald K. Hanson, Juan C. Montoya, Mark G. Allen, and Kevin R. Sholes  »View Author Affiliations

Applied Optics, Vol. 48, Issue 33, pp. 6492-6500 (2009)

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A midinfrared absorption sensor for crank-angle-resolved in-cylinder measurements of gasoline concentration and gas temperature for spark-ignition internal-combustion engines is reported, and design considerations and validation testing in the controlled environments of a heated cell and shock-heated gases are discussed. Mid-IR laser light was tuned to transitions in the strong absorption bands associated with C—H stretching vibration near 3.4 μm , and time-resolved fuel vapor concentration and gas temperature were determined simultaneously from the absorption at two different wavelengths. These two infrared laser wavelengths were simultaneously produced by difference-frequency generation, which combines a near-IR signal laser with two near-IR pump lasers in a periodically poled lithium niobate crystal. Injection current modulation of the pump lasers produced intensity modulation of the mid-IR, which allowed the transmitted signals from the two laser wavelengths to be detected on a single detector and separated by frequency demultiplexing. Injection current modulation produced a wavelength modulation synchronous with the intensity modulation for each of the laser wavelengths, and accurate measurement of the gasoline absorption signal required the effects of wavelength modulation to be considered. Validation experiments were conducted for a single-component hydrocarbon fuel (2,2,4-trimethyl-pentane, commonly known as iso-octane) and a gasoline blend in a heated static cell ( 300 T 600 K ) and behind planar shock waves ( 600 < T < 1100 K ) in a shock tube. With a bandwidth of 10 kHz , the measured fuel concentrations agreed within 5% RMS and the measured temperature agreed within 3% RMS to the known values. The 10 kHz bandwidth is sufficient to resolve 1 crank-angle degree at 1600 RPM .

© 2009 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.6780) Instrumentation, measurement, and metrology : Temperature
(300.1030) Spectroscopy : Absorption

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: July 21, 2009
Revised Manuscript: October 22, 2009
Manuscript Accepted: October 28, 2009
Published: November 16, 2009

Sung Hyun Pyun, Jason M. Porter, Jay B. Jeffries, Ronald K. Hanson, Juan C. Montoya, Mark G. Allen, and Kevin R. Sholes, "Two-color-absorption sensor for time-resolved measurements of gasoline concentration and temperature," Appl. Opt. 48, 6492-6500 (2009)

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  1. H. Zhao and N. Ladommatos, “Optical diagnostics for in-cylinder mixture formation measurements in IC engines,” Prog. Energy Combust. Sci. 24, 297-336 (1998). [CrossRef]
  2. F. P. Hindle, S. J. Carey, K. B. Ozanyan, D. E. Winterbone, E. Clough, and H. McCann, “Near infra-red chemical species tomography of sprays of volatile hydrocarbons,” Techn. Messen 69, 352-357 (2002).
  3. H. McCann, S. J. Carey, F. P. Hindle, K. B. Ozanyan, D. E. Winterbone, and E. Clough, “Near-infrared absorption tomography system for measurement of gaseous hydrocarbon distribution,” Proc. SPIE 4188, 141-150 (2001). [CrossRef]
  4. P. Wright, C. A. Garcia-Stewart, S. J. Carey, F. P. Hindle, S. H. Pegrum, S. M. Colbourne, P. J. Turner, W. J. Hurr, T. J. Litt, S. C. Murray, S. D. Crossley, K. B. Ozanyan, and H. McCann, “Toward in-cylinder absorption tomography in a production engine,” Appl. Opt. 44, 6578-6592 (2005). [CrossRef]
  5. H. Kawazoe, K. Inagaki, Y. Emi, and F. Yoshino, “Computed tomography measurement of gaseous fuel concentration by infrared laser light absorption,” Proc. SPIE 3172, 576-584(1997). [CrossRef]
  6. R. K. Mongia, E. Tomita, F. K. Hsu, L. Talbot, and R. W. Dibble, “Use of an optical probe for time-resolved in situ measurement of local air-to-fuel ratio and extent of fuel mixing with applications to low NOx emissions in premixed gas turbines,” Proc. Combust. Inst. 26, 2749-2755(1996).
  7. Q.-V. Nguyen, R. K. Mongia, and R. W. Dibble, “Real-time optical fuel-to-air ratio sensor for gas turbine combustors,” Proc. SPIE 3535, 124-130 (1999).
  8. D. C. Horning, D. F. Davidson, and R. K. Hanson, “Study of the high-temperature autoignition of n-alkane/O2/Ar mixtures,” J. Propuls. Power 18, 363-371 (2002).
  9. E. Tomita, N. Kawahara, A. Nishiyama, and M. Shigenaga, “In situ measurement of hydrocarbon fuel concentration near a spark plug in an engine cylinder using the 3.392 μm infrared laser absorption method: application to an actual engine,” Meas. Sci. Technol. 14, 1357-1363 (2003). [CrossRef]
  10. E. Tomita, N. Kawahara, M. Shigenaga, A. Nishiyama, and R. W. Dibble, “In situ measurement of hydrocarbon fuel concentration near a spark plug in an engine cylinder using the 3.392 μm infrared laser absorption method: discussion of applicability with a homogeneous methane-air mixture,” Meas. Sci. Technol. 14, 1350-1356 (2003). [CrossRef]
  11. A. E. Klingbeil, J. B. Jeffries, and R. K. Hanson, “Design of a fiber-coupled mid-IR fuel sensor for pulse detonation engines,” AIAA J. 45, 772-778 (2007). [CrossRef]
  12. J. A. Drallmeier, “Hydrocarbon absorption coefficients at the 3.39 μm He-Ne laser transition,” Appl. Opt. 42, 979-982(2003). [CrossRef]
  13. S. Yoshiyama, Y. Hamamoto, E. Tomita, and K.-I. Minami, “Measurement of hydrocarbon fuel concentration by means of infrared absorption technique with 3.39 μm He-Ne laser,” JSAE Rev. 17, 339-345 (1996).
  14. E. Winklhofer and A. Plimon, “Monitoring of hydrocarbon fuel-air mixtures by means of a light extinction technique in optically accessed research engine,” Opt. Eng. 30, 1262-1268 (1991).
  15. A. E. Klingbeil, J. B. Jeffries, and R. K. Hanson, “Temperature- and concentration-dependent mid-infrared absorption spectrum of gasoline: model and measurements,” Fuel 87, 3600-3609 (2008). [CrossRef]
  16. A. E. Klingbeil, J. M. Porter, J. B. Jeffries, and R. K. Hanson, “Two-wavelength mid-IR absorption diagnostic for simultaneous measurement of temperature and hydrocarbon fuel concentration,” Proc. Combust. Inst. 32, 821-829 (2009).
  17. A. E. Klingbeil, J. B. Jeffries, D. F. Davidson, and R. K. Hanson, “Two-wavelength mid-IR diagnostic for temperature and n-dodecane concentration in an aerosol shock tube,” Appl. Phys. B 93, 627-638 (2008).
  18. A. Kakuho, K. Yamaguchi, Y. Hashizume, T. Urushihara, and T. Itoh, “A study of air-fuel mixture formation in direct-injection SI engines,” SAE technical paper series2004-01-1946 (Society of Automotive Engineers, 2004).
  19. A. Grosch, V. Beushausen, O. Thiele, and R. Grzeszik, “Crank angle resolved determination of fuel concentration and air/fuel ratio in a SI-internal combustion engine using a modified optical spark plug,” SAE technical paper series2007-01-0644 (Society of Automotive Engineers, 2007).
  20. A. Kakuho, K. R. Sholes, Y. Hashizume, S. Takatani, T. Urushihara, R. K. Hanson, J. B. Jeffries, and M. G. Allen, “Simultaneous measurement of in-cylinder temperature and residual gas concentration in the vicinity of the spark plug by wavelength modulation infrared absorption,” SAE technical paper series2007-01-0639 (Society of Automotive Engineers, 2007).
  21. A. E. Klingbeil, J. B. Jeffries, and R. K. Hanson, “Temperature-dependent mid-IR absorption spectra of gaseous hydrocarbons,” J. Quant. Spectrosc. Radiat. Transfer 107, 407-420(2007). [CrossRef]
  22. W. Chen, J. Cousin, E. Poullet, J. Burie, D. Boucher, X. Gao, M. W. Sigrist, and F. K. Tittel, “Continuous-wave mid-infrared laser sources based on difference frequency generation,” Comptes Rendus Phys. 8, 1129-1150 (2007).
  23. D. Richter, P. Weibring, A. Fried, O. Tadanaga, Y. Nishida, M. Asobe, and H. Suzuki, “High-power, tunable difference frequency generation source for absorption spectroscopy based on a ridge waveguide periodically poled lithium niobate crystal,” Opt. Express 15, 5172 (2007). [CrossRef]
  24. L. C. Philippe and R. K. Hanson, “Laser diode wavelength-modulation spectroscopy for simultaneous measurement of temperature, pressure and velocity in shock-heated oxygen flows,” Appl. Opt. 32, 6090-6103 (1993). [CrossRef]
  25. R. D. Cook, D. F. Davidson, and R. K. Hanson, “Shock tube measurements of ignition delay times and OH time-histories in dimethyl ether oxidation,” Proc. Combust. Inst. 32, 189-196 (2009).
  26. G. Ben-Dor, O. Igra, and T. Elperin, eds., Handbook of Shock Waves (Academic, 2001), Chaps. 3.1 and 4.1.

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