Field tests of the Raman gas composition sensor

Michael P. Buric, Benjamin T. Chorpening, Jessica C. Mullen, Steven D. Woodruff, Joseph A. Ranalli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

A gas composition sensor based on Raman spectroscopy using reflective metal lined capillary waveguides is tested under field conditions for feedforward applications in combustion control. The capillary waveguide enables effective use of low powered lasers and rapid composition determination, for computation of required parameters to pre-adjust burner control based on incoming fuel. Tests on high pressure fuel streams show sub-second time response and better than one percent accuracy on natural gas fuel mixtures. Fuel composition and Wobbe constant values are provided at one second intervals or faster. The sensor, designed and constructed at NETL, is packaged for Class I Division 2 operations typical of gas turbine and boiler environments, and samples gas at up to 800 psig. Simultaneous determination of the hydrocarbons methane, ethane, and propane plus CO, CO2, H2O, H2, N2, and O2 are realized. The capillary waveguide permits use of miniature spectrometers and laser power of less than 100 mW. The capillary dimensions of 1 m length and 300 μm ID also enable a full sample exchange in 0.4 s or less at 5 psig pressure differential, which allows a fast response to changes in sample composition. Sensor operation under field operation conditions will be reported.

Original languageEnglish (US)
Title of host publicationFIIW 2012 - 2012 Future of Instrumentation International Workshop Proceedings
Pages29-32
Number of pages4
DOIs
StatePublished - Dec 1 2012
Event2012 Future of Instrumentation International Workshop, FIIW 2012 - Gatlinburg, TN, United States
Duration: Oct 8 2012Oct 9 2012

Publication series

NameFIIW 2012 - 2012 Future of Instrumentation International Workshop Proceedings

Other

Other2012 Future of Instrumentation International Workshop, FIIW 2012
CountryUnited States
CityGatlinburg, TN
Period10/8/1210/9/12

All Science Journal Classification (ASJC) codes

  • Instrumentation

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    Buric, M. P., Chorpening, B. T., Mullen, J. C., Woodruff, S. D., & Ranalli, J. A. (2012). Field tests of the Raman gas composition sensor. In FIIW 2012 - 2012 Future of Instrumentation International Workshop Proceedings (pp. 29-32). [6378319] (FIIW 2012 - 2012 Future of Instrumentation International Workshop Proceedings). https://doi.org/10.1109/FIIW.2012.6378319