PHOTOGRAPHIC INVESTIGATION OF MODIFIED FUEL BREAKUP AND IGNITION

Laboratory evaluations were performed to determine the flammability characteristics, physical properties, and rheological profiles of modified fuel sprays. Photographs were made of fuel particles formed by air shearing in the NAFEC Fire Test Facility. Ignition studies of the modified fuel sprays included photographs of typical combustion patterns. Comparisons of shear viscosity, droplet geometries, and ignitability of the different antimisting fuels clarify the effect of polymeric additives on turbine fuel safety, and indicate critical criteria for modified fuel specifications. The results of this investigation lead to two major conclusions. First, the modified fuel spray consists of particles of large size and highly aspherical geometry. Second, although a modified fuel can be flammable in the presence of an intense ignition source, all modified fuels tested were more difficult to ignite than neat fuel. (Author)

• Corporate Authors:

  National Aviation Facilities Experimental Center

  Federal Aviation Administration
  Atlantic City, NJ  United States  08405
• Authors:
  • Zinn, SVJ
  • Eklund, T I
  • Neese, W E
• Publication Date: 1976-9

Media Info

• Pagination: 30 p.

Subject/Index Terms

• TRT Terms: Air transportation crashes; Aircraft fuels; Aviation safety; Chemical bond; Combustion; Crashes; Fires; Flammability; Fuels; Grain size (Geology); Ignition; Jet engine fuels; Mist; Motor fuels; Photography; Physical properties; Polymers; Rheology; Solutions (Chemistry); Sprays (Materials)
• Uncontrolled Terms: Aircraft safety
• Old TRIS Terms: Antimisting fuels; Atomization; Fuel sprays; Photographic analysis; Solutions
• Subject Areas: Aviation; Energy;

Filing Info

• Accession Number: 00146220
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-RD-76-109 Final Rpt., FAA-NA-76-10
• Files: NTIS, TRIS, USDOT
• Created Date: Jan 16 1977 12:00AM