This article is based on the MarAd study "Shipboard Fuel Handling and Treatment -- Guidelines for Onboard Conditioning" conducted by Seaworthy Engine Systems Inc. and dated Sept. 1982. The Author <of Seaworthy Engine Systems> discusses present-day and near-future degradation in the quality of marine heavy fuel oils and marine Diesel oils, and briefly explains how the degraded fuels can affect the performance of Diesel engines. It is emphasised that, under present conditions, it is the ship operator who has primary responsibility for ensuring that his Diesel engines are not adversely affected by poor quality fuels. Shipboard fuel treatment and conditioning systems for protecting Diesel engines under these circumstances are then discussed, and proposed improved fuel-systems for medium-speed engines are described in some detail <low-speed engines, omitted for the sake of brevity, have generally similar but less extensive requirements>. These proposed systems, adaptable to suit Redwood 1 viscosities of 800, 1500 and 3500 sec, are <i> a fuel oil "fill, transfer, storage and purification" system; and <ii> a fuel oil service system for supplying the main engine<s>, auxiliary boiler, and ship's service Diesel-generator set. The importance of settling and service tanks <which are much neglected> is mentioned, and some less familiar components discussed include demulsifiers, 5-micron filters, chemical inhibitor arrangements, and high-energy homogenisers. Shipboard testing <in addition to a thorough shoreside analysis> of the fuel bunkered is discussed; daily testing is strongly recommended.

  • Supplemental Notes:
    • Mar. Engng/Log, 88 <1983>, p.51 <Mar.> (5 pp., 4 tab., 4 diag.)
  • Authors:
    • Winkler, M F
  • Publication Date: 1983


  • English

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00685105
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM