A MATHEMATICAL MODEL OF A MAIN BOILER FOR 60,000 KW CONTAINER SHIP

The paper describes how mathematical models of dynamic characteristics were formulated for one of two main boilers installed in SS "KAMAKURA MARU" an 80,000 hp high speed container ship, analysed by computer simulation technique and checked against the results of actual measurements made in October 1971 before the ship was handed over to the owner in November. The discrete-space continuous-time finite difference method was used and the water circulation loops, i.e. furnace waterwalls, downcomers etc. were divided into eleven space lumps and, similarly, the superheater and control desuperheater were divided into eight and two space lumps respectively. The mathematical models feature the use of non-linear equations to analyze the boiler dynamic responses to drastic load change peculiar to the ship's boilers, and were found highly practical for use in the analysis of dynamics of large capacity boilers.

• Supplemental Notes:
  • 45 Conference Papers presented at IMAS 73, London, 4-8 June 1973, organized by the Institute of Marine Engineers. This paper is available only in a set of 7 papers in Subject Group 1: "Boilers, Main Steam Turbine and Gearing" at $10.00.
• Corporate Authors:

  Institute of Marine Engineers

  Memorial Building, 76 Mark Lane
  London EC3R 7JN,   England 
• Authors:
  • Haraguchi, O
  • Akasaka, N
• Publication Date: 1973

Subject/Index Terms

• TRT Terms: Boilers; Containerships; Electric power plants; Mathematical models; Performance; Propulsion; Ship operations; Steam power plants; Testing
• Old TRIS Terms: Boiler testing; Power plant performance; Propulsion machinery; Ship performance
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00048450
• Record Type: Publication
• Source Agency: Institute of Marine Engineers
• Files: TRIS
• Created Date: Nov 14 1973 12:00AM