MORE ON ENERGY-SAVING SHIP PROPULSION SYSTEMS

In a previous article, summarised in Abs. No. 57010 <Feb. 1982>, information was given on plans by major Japanese shipbuilders for the development of high-efficiency propulsion systems. Since then, some Japanese builders of marine Diesel engines have made known their plans for obtaining high fuel-economy with combinations of efficient engines, exhaust-gas economisers, low-speed propellers, etc., and the present article describes proposals of Kobe Diesel <a Mitsubishi licensee for UE engines>, Hanshin Diesel and Daihatsu Diesel. Kobe Diesel's proposal, for a 10,000-dwt chemical tanker, includes a propulsion system with a 5145-kW 7UEC 45/115H main engine driving a c.p. propeller, at 90 rpm, through a reduction gear fitted with a PTO for a 450-kVA alternator. See Abs. No. 57854 <Aug. 1982>. Hanshin Diesel propose two alternative fuel-saving plants for a 999 grt coastal tanker. One has an ungeared 6EL32 engine <m.c.r. 2000 hp at 280 rpm> and the other a geared 6LU35RG engine <m.c.r. 1800 hp at 320 engine rpm, 230 propeller rpm>; each drives a c.p. propeller <with automatic load control> and the main alternator. These two plants and their performance are compared in some detail with a conventional plant, which has a 6LU38 engine driving a f.p. propeller and a Diesel set burning Diesel oil, for this type of ship. All three main engines burn heavy oil. Daihatsu's plan is also for the fuel-saving plant of a 999-grt coastal tanker. The main engine is a four-stroke <m.c.r. 1800 hp at 550 rpm> burning heavy oil and driving a large-diameter f.p. propeller <at 200 rpm> and a 120 kVA alternator.

  • Supplemental Notes:
    • Diesel & Gas Turbine Worldwide, 14 <1982>, p.18 <Dec.> (3 pp., 1 tab., 2 graphs, 1 diag.)
  • Publication Date: 1982

Language

  • English

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00685345
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM