Accession Number : ADA003648


Title :   Field Tests of a Laser Raman Measurement System for Aircraft Engine Exhaust Emissions


Descriptive Note : Final technical rept.


Corporate Author : AVCO EVERETT RESEARCH LAB INC EVERETT MA


Personal Author(s) : Leonard, Donald A.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA003648


Report Date : OCT 1974


Pagination or Media Count : 178


Abstract : Laser induced Raman and fluorescence measurements were made in the exhaust of a T53-L13A gas turbine engine with a new field portable instrument devised specifically for gas turbine exhaust emission measurements. The gas turbine exhaust was analyzed by conventional instruments for CO, CO2, NO, NOx, total hydrocarbons, smoke and temperature, and these data were used as a 'calibration' standard for the evaluation of the laser Raman instrument. The most severe problem area was laser induced hydrocarbon fluorescence when the exhaust contained large total hydrocarbon concentrations. The overall conclusion was that the laser Raman method shows a good potential for aircraft gas turbine emission analysis.


Descriptors :   *GAS DETECTORS , *EXHAUST GASES , FLUORESCENCE , EXPERIMENTAL DESIGN , GAS ANALYSIS , EMISSION SPECTRA , GAS TURBINES , SMOKE , HYDROCARBONS , CALIBRATION , CARBON MONOXIDE , NITROGEN OXIDES , CARBON DIOXIDE , RAMAN SPECTRA.


Subject Categories : INORGANIC CHEMISTRY
      ATOMIC AND MOLECULAR PHYSICS AND SPECTROSCOPY


Distribution Statement : APPROVED FOR PUBLIC RELEASE