TURBOCHARGER CLEANING AT FULL ENGINE-POWER

The use of heavy fuels in Diesel engines will cause fouling of the turbocharger blades on the turbine side unless remedial action is taken, and since about 1956 it has been usual to clean the turbocharger while the engine is running at 20% power. Current practice is to mix water with the gas flow for a few minutes, and this has been a very satisfactory method of cleaning. However, it would be advantageous if the cleaning could be done without reducing power, and the Authors (of, respectively, Brown Boveri and the ISF Flensburg) give an account of tests carried out at Flensburg with the object of developing methods of turbocharger cleaning at the higher powers and possible at full load. The paper represents an interim report on this work. The tests were carried out on a modified KHD engine, type RBV 6M 545 (845 kW at 385 rpm), fitted with a Brown Boveri VTR 250 turbocharger and burning a special heavy oil. The turbocharger was cleaned at 25%, 50%, 75%, and 100% load, after being fouled in each case; the cleaning medium used was water in some tests and nut-shell granules in others. The fouling of the turbocharger before each cleaning test was done in a 24-hr process (with some extensions), but it has not yet been established whether this is comparable to the long-term fouling that would occur in normal service. The cleaning procedures at the higher engine loads are not yet fully satisfactory, but the results indicate that it will be possible to wash the turbocharger while the engine is running at 100% load and 12.4 kg/cm square mep. Order from BSRA as No. 54,597.

  • Corporate Authors:

    Schroedter (C) and Company

    Stubbenhuk 10
    Hamburg 11,   Germany 
  • Authors:
    • Pietro, W
    • Kux, D
  • Publication Date: 1980-9

Media Info

  • Pagination: p. 1400
  • Serial:
    • HANSA
    • Volume: 117
    • Issue Number: 18
    • Publisher: Deutsche Bahn AG

Subject/Index Terms

Filing Info

  • Accession Number: 00329866
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM