This paper describes the design of a gas turbine-electric propulsion system for a twin-screw 165,000-cubic meter LNG carrier. Three, aircraft-derived gas turbine, AC-synchronous generator sets feed electrical power to a common propulsion bus, which supplies power to two AC-synchronous propulsion motors directly coupled to the shafts. Fuel for the system consists of cargo boiloff, distillate, or both. The problem of excess boiloff energy disposal is solved by the use of electrolytic rheostat load banks. The technical and economic advantages and disadvantages of the system, as compared to the heavy-duty gas turbine and the steam propulsion systems, are briefly discussed. Although the system appears technically feasible, important components, such as the load banks and electrical equipment, require further development and testing.

  • Supplemental Notes:
    • Paper presented at SNAME (Gulf Section) Spring Meeting and Star Symposium: Merchant & Naval Design, The Past in Review The Future in Forecast, Houston, April 25-28, 1979.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Peters, W F
    • Hansen, K A
  • Publication Date: 1979

Media Info

  • Features: References;
  • Pagination: 25 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00189651
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Files: TRIS
  • Created Date: Apr 25 1979 12:00AM