A particulate material sampler was designed to be used in conjunction with commercial aircraft turbine engines. The engines of interest include a low-bypass ratio turbofan (JT3D), a mixed-flow turbofan (JT8D), and a high by-pass ratio turbofan (JT9D). The samples and information provided by the sampler include: particle size distribution (minimum particle size = 0.001 micrometers, particle size shape characteristics, and particulate mass concentration. The influence of engine operating variables such as power setting and compressor inlet conditions on particle characteristics can be determined. The sampler designed utilizes a mixing-type probe assembly, a specialized aerosol transport system which also provides conditioning, and a sample collection system near the engine to minimize particle-loss problems. The extracted sample is bifurcated -- the larger stream yielding a bulk sample and the smaller stream undergoing further dilution for detailed particle characterization. (Author)

  • Corporate Authors:

    IIT Research Institute

    10 West 35th Street
    Chicago, IL  United States  60616
  • Authors:
    • Fenton, D L
  • Publication Date: 1976-9

Media Info

  • Pagination: 140 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00159302
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: IITRI-C6352-10, FAA/RD-76-141
  • Contract Numbers: DOT-FA75-WA-3722
  • Files: NTIS
  • Created Date: Aug 31 2002 12:00AM