Shipowners around the world are making initial surveys to see whether the potential benefits of changing from oil firing to coal can be turned into actual profit. Boiler plant figures prominently in the associated problems, and the Author (of Babcock Power Ltd) examines in some detail the boiler-related problems under the headings: The Fuel; Combustion of Coal; Fluidised Bed Combustion; Pulverised Fuel; Mechanical Stokers; The Coal-fired Boiler; Ash Disposal. It is concluded that, economically, coal should improve its position in marine propulsion with the passage of time. Proposals similar to those described in the paper should provide acceptable operational standards. Coal can be burned reasonably efficiently with the spreader stoker, and boiler designs are available which should give a high standard of reliability. Coal and ash can be moved about the ship without manual aid and without noise or dust nuisance. Automatic controls allow plant operation with manning levels similar to those in oil-fired ships. Developments continue towards the use of fluidised bed combustion and pulverised coal. Eventually, unmanned operation at night should be possible with mechanical stoking. It is encouraging that enquiries likely to lead to the first modern coal-fired ship come from owners with previous experience of coal-fired plant, and if any of these plans are realised there will be a good opportunity for coal firing to prove itself and to extend its application in ship propulsion. Order from BSRA as No. 54,281.

Media Info

  • Pagination: 7 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00324772
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Report/Paper Numbers: Paper No. 6
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM