The objective of the design study was to define the basic characteristics of a hydrojet system installed in a destroyer, using four gas turbines in a COGAG arrangement as the prime movers, so that the range performance of the ship for a variety of operating speeds was an optimum, within the applicable constraints. The hydrojet propulsion system essentially consists of the prime movers, gearbox, pump, intake, and exhaust ducting. For the initial study with the prime movers and the ship specified, some 20 variables were taken to describe the propulsion system. But it was anticipated that with development, the number of these variables would increase markedly. Insertion of values of these variables into the mathematical model of the system leads not only to an estimation of the range performance of the ship, but to values for a large number of other variables, some of which were constraints on the system and others were indicators of the detail characteristics, thus yielding information on reasonableness or otherwise of detail aspects of the design.

  • Supplemental Notes:
    • Meeting held March 30-April 4, 1974.
  • Corporate Authors:

    American Society of Chemical Engineers

    345 East 47th Street
    New York, NY  United States  10017
  • Authors:
    • Frith, D A
  • Publication Date: 1974

Media Info

  • Features: References;
  • Pagination: 5 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00054866
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: #74-GT-114
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM