OPERATIONAL CONSIDERATIONS FOR DESIGNING MACHINERY AFT CONDENSER-CONDENSER SCOOP SYSTEMS

Condenser scoops have attractive features for circulating cooling seawater through the main condenser. Further developments are required, however, to enable the designer to fully utilize the simplification and cost reduction attributed to the scoop system. Therefore this paper reviews recent machinery-aft condenser installations, developments in inlet and outlet scoop designs, and boundary-layer measurements at the outlet scoop locations of a 91,000-dwt and a 160,000-dwt tanker. A rational approach based on Hotta's formulation is discussed for estimating the effects of seawater temperature, condenser tube fouling, and reduced scoop flow during operation on the condenser vacuum. A simulation study using the Hampton Maru service data is presented to illustrate this approach. Relevant experience in condenser corrosion and fouling is also reviewed and a proposal for using Campbell's condenser tube tester in shipboard condenser corrosion and fouling research is presented.

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  • Supplemental Notes:
    • Presented at ISME Tokyo '78, 13-15 November 1978.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Latorre, R
  • Publication Date: 1979-10

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Filing Info

  • Accession Number: 00301404
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 7 1979 12:00AM