A briefcase-packaged, portable raw gas emissions analysis system is proposed, which provides 1 second timeslice T-90 response and 1 ppm precision for low concentration gases (NO, NO2, CO, N2O, and total HC). The micro-rugged Fourier Transform Infrared (FTIR) based system incorporates a newly available interferometer kernel possessing 1.3 kg mass and exceptional optical stability. With an integral micro FID, total and speciated hydrocarbons are accurately determined. This, in conjunction with the FTIR hot gas analysis, provides wet accurate gaseous measurements for most regulated and nonregulated air pollutants. A novel microcapillary heated transfer system and low volume multipass optical gas cell provide best kinetic and thermodynamic equilibria of analyte compounds, preventing NO/NO2 oxidation. Engine speed is measured acoustically, and stack flow is measured with an integrated sample probe/flow anemometer. Instantaneous engine horsepower is determined computationally through CO2/CO/HC/speed/flow measurements. This development program will result in a portable instrument for mobile and stationary modeling and compliance work. An on-board pentium class computer provides instantaneous graphic results and sophisticated statistical treatment for factor analysis. The system also is optimized for in-use compliance evaluations. Analytical Engineering, Inc. (AEI), partnering with Rose Hulman Institute of Technology and Boyer Machine Co., are working to successfully develop and commercialize the proposed technology. Both government and commercial markets exist for this technology stemming predominantly from mobile emissions testing but also to stationary emitter analysis. Because size and mass are optimized, applications also exist for CEMS, autonomous data collection, and atmospheric measurements. Supplemental
Keywords: small business, SBIR, monitoring, air emissions, engineering, chemistry, EPA. , Air, Ecosystem Protection/Environmental Exposure & Risk, RFA, Scientific Discipline, Toxics, Chemistry, Engineering, Environmental Engineering, Environmental Monitoring, HAPS, Monitoring/Modeling, air toxics, tropospheric ozone, FTIR, Field Fourier Infrared (FT-IR), Fourier transform infrared, Nitrogen Oxides, aerosol analyzers, aerosol sampling, air pollutants, air sampling, ambient air, ambient air quality, ambient monitoring, analytical chemistry, atmospheric chemistry, chromatography, continuous emissions monitoring, continuous measurement, environmental measurement, field detection, field measurements, field monitoring, field portable monitoring, gas chromatography, hydrocarbon, hydrocarbons, measurement, measurement methods , nitrogen dioxide (NO2), nitrogen oxides (Nox), portable chemical analyzer, portable detection system, portable device, real time
