A conceptual design study was conducted to develop a family of closed gas turbine engines satisfying many marine applications. Complete engine systems, including rotating group, heat exchangers, heat source, and control system were designed for both 9000 hp auxilliary electro-mechanical units, and small craft propulsion engines and also for 40,000, 60,000 and 80,000 hp helium cycle ship's propulsion engines. Further studies conducted revealed the closed gas turbine installations to offer definite economic advantages to the maritime industry, compared to steam, diesel or open cycle gas turbine plants. A second design study was conducted to analyze systems to control cargo boil-off from LNG tankers and to assess the impact of such systems on the economics of these tankers. Reliquefaction and subcooling approaches were considered using nitrogen-cycle reverse Brayton machines. Elimination of LNG boil-off was found to be feasible and economical provided the ratio of LNG cost to fuel oil cost was high.

  • Corporate Authors:

    AiResearch Manufacturing Company

    402 South 36th Street
    Phoenix, AZ  United States  85034
  • Authors:
    • Rackley, R A
  • Publication Date: 1974-6-30

Media Info

  • Pagination: 48 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00131607
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: 74-310632-2, Phase 1Final Rpt., MA-RD-920-75002
  • Contract Numbers: C-3-36300
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM