The Author, of Noraton-Norcontrol A/S, Oslo, describes DETS, a system developed by his company for the detailed analysis of the combustion and associated processes in marine Diesel engines in service. The system provides accurate information to allow engine adjustments to be made in the interests of optimum combustion and its attendant fuel and other savings. The system may be used, first, to check the cylinder pressure; then, if abnormalities are detected, the fuel injection cycle can be checked, and this will also reveal any possible faults in the air-supply/scavenging system. The central unit of DETS consists of the I/O system, A/D converters, sample and hold amplifiers, the processor (an INTEL 8080 micro-computer), hard-copy printer, communication panel, and power supply. These arrangements are further explained with the aid of a diagram; a copy of an actual print-out is also included. A standard print-out, for each cylinder, contains a cylinder-pressure and a fuel injection-pressure curve, together with "normal" and "actual" alpha-numeric data on the cylinder performance. When all cylinders have been recorded, information from them is manually inserted for the system to print out the total ihp, indicated specific consumption, and a summary of the performance of each cylinder. It is mentioned that experience with DataTrend has been utilized in developing DETS. Accuracy, in particular that of the T.D.C. position, has been given special attention. Some data on measurement accuracy and repeatability, together with brief information on possible fuel and other economies resulting from the use of the system, are included in the article. Order from: BSRA as No. 47,782.

  • Availability:
  • Corporate Authors:

    Seehafen-Verlag Erik Blumenfeld

    Celsiusweg 15, Postfach 1347
    2000 Hamburg 50,   Germany 
  • Authors:
    • Bentzen, R
  • Publication Date: 1977-10

Media Info

  • Features: References;
  • Pagination: 2 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00173733
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Apr 26 1978 12:00AM