ELECTRICAL DESIGN CONCEPTS AND PHILOSOPHY FOR AN EMERGENCY AND SUPPORT VESSEL

An emergency and support vessel (ESV) is a multi-functional vessel whose principal role is to assist offshore platforms in case of unforeseen difficulties or disaster. Iolair is the first ESV purpose-built for British Petroleum and the British National Oil Corporation. The vessel is a semi-submersible having two pontoons supporting a platform superstructure on six vertical columns. Diesel electric generation provides power for propulsion and all services. Transit speeds of up to 12 knots are anticipated using the main propellers driven by twin geared induction motors. These, in combination with tunnel thrusters located forward and aft in each pontoon, give substantial dynamic positioning capability. In addition to its emergency roles, Iolair has facilities for routine functions such as: saturation and surface diving; accommodation for transient personnel; maintenance and inspection, and helicopter handling. In this paper, the authors describe the design and philosophy of the electrical systems on Iolair, which evolved in conjunction with the machinery and hull designs.

  • Supplemental Notes:
    • Inst. Mar. Eng. Trans. (TM), Paper pres. at meeting 22 Mar. 1982 (13 pp., 22 ref., 3 tab., 3 graphs, 6 diag.; and Discussion 6 pp., 2 diag.)
  • Authors:
    • Rush, H
    • Taylor, S K
  • Publication Date: 1982

Language

  • English

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00684340
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM