CUSTODY TRANSFER SYSTEMS FOR LNG-SHIPS: TANK SURVEY TECHNIQUES AND SOUNDING TABLES

Static measurements of liquefied natural gas (LNG) for custody transfer purposes require an accurate and precise knowledge of the container volume and the volume-height relationship. The extremely low temperatures of LNG (less than 150K) preclude in situ surveys; however, the increasing value of the cargo requires more precise and accurate measurements than previously used for bulk marine cargoes. A description and assessment of the application of photogrammetric techniques to the ambient temperature survey of a 35-meter diameter spherical aluminum container are presented. Sample sounding tables (height-volume) are calculated, and an estimate of error is given.

  • Supplemental Notes:
    • Sponsored in part by Maritime Administration, Washington, DC.
  • Corporate Authors:

    National Engineering Laboratory

    Center for Applied Mathematics
    Gaithersburg, MD  USA  20760

    Maritime Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Jackson, RHF
    • Collier, R S
    • Haber, S
    • Tryon, P V
  • Publication Date: 1979-5

Media Info

  • Pagination: 84 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00198646
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NBSIR-79/1751
  • Files: TRIS, USDOT
  • Created Date: Oct 17 1979 12:00AM