AIRCRAFT CABIN OZONE MEASUREMENTS ON B747-100 AND B747-SP AIRCRAFT: CORRELATIONS WITH ATMOSPHERIC OZONE AND OZONE ENCOUNTER STATISTICS

Simultaneous measurements of atmospheric (outside) ozone concentration and ozone levels in the cabin of the B747-100 and B747-SP airliners were made by NASA to evaluate the aircraft cabin ozone contamination problem. Instrumentation on these aircraft measured ozone from an outside probe and at one point in the cabin. Average ozone in the cabin of the B747-100 was 39 percent of the outside. Ozone in the cabin of the B747-SP measured 82 percent of the outside, before corrective measures. Procedures to reduce the ozone in this aircraft included changes in the cabin air circulation system, use of the high-temperature 15th stage compressor bleed, and charcoal filters in the inlet cabin air ducting, which as separate actions reduced the ozone to 58, 19 and 5 percent, respectively. The potential for the NASA instrumented B747 aircraft to encounter high levels of cabin ozone was derived from atmospheric ozone measurements on these aircraft. Encounter frequencies for two B747-100's were comparable even though the route structures were different. The B747-SP encountered higher ozone than did the B747-100's.

  • Supplemental Notes:
    • Conf-Presented at a Tech. Briefing on Ozone, Cleveland, Ohio, 19 Jan. 1978.
  • Corporate Authors:

    Department of the Navy

    The Pentagon
    Washington, DC  USA  20350
  • Authors:
    • PERKINS, P J
    • HOLDEMAN, J D
    • Gauntner, D J
  • Publication Date: 1978-1

Media Info

  • Pagination: 41 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00191981
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-TM-79060
  • Files: TRIS
  • Created Date: Jul 11 1979 12:00AM