EFFICIENT OPERATION OF COMBUSTION EQUIPMENT IN MARINE BOILERS

In this paper, written principally for users of ships' main or auxiliary water-tube boilers with multiple register oil-burners, the Author (of Hamworthy Engineering Ltd) explains the requirements that the air-register/oil-atomiser combination has to meet if the boiler is to operate efficiently. The manufacturer establishes the correct matching of atomiser and register geometry, but input conditions for the air and oil are often much below the optimum and result in poor and uneconomical flames. Improved air-flow distribution between and around the air register can give significant operational advantages, and installation of new or modified combustion equipment can often repay the investment within a year. The paper, which is particularly concerned with fuel economy, includes two case studies on air flow to and through the register and discusses the operation and maintenance of steam-assisted atomisers (external mix type) and steam atomisers (internal mix type). The paper also includes a discussion on the use of flue gas for inert-gas systems, including the combustion-control arrangements. Possible measures for overcoming combustion difficulties with oil fuels that may be bunkered during the next few years are also examined; it is thought that modifications to existing equipment, rather than replacing the equipment, would be adequate. Order from BSRA as No. 54,765.

• Supplemental Notes:
  • Institute Marine Engineers, Conference on Combustion of Fuels in Ships, 1979-1985.
• Corporate Authors:

  Institute of Marine Engineers

  Memorial Building, 76 Mark Lane
  London EC3R 7JN,   England 
• Authors:
  • Lanary, R S
• Publication Date: 1979-10-12

Media Info

• Pagination: 6 p.

Subject/Index Terms

• TRT Terms: Combustion; Fuel conservation; Oil burners
• Old TRIS Terms: Combustion control; Fuel atomization
• Subject Areas: Energy; Marine Transportation;

Filing Info

• Accession Number: 00330008
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: Paper C43
• Files: TRIS
• Created Date: May 21 1981 12:00AM