Foam is one of the best fire-fighting media, but its efficiency, and therefore ship safety, depends on its quality, correct proportioning, and an effectively positioned distribution network. Foam-making equipment is designed to produce the most effective type for a given risk. Ships require a fluid foam in the machinery spaces so that the area is quickly covered and obstacles negotiated without difficulty. It must also remain stable for as long as possible. Stiffer foams have a longer life and if tank-deck areas are to be protected with manually operated foam monitors, equipment capable of producing this type of foam. Foams can be used to advantage. Foams are characterised according to expansion, drainage, and critical shear stress. Foam expansion is the ratio between its volume and the solution from which it is made. The expansion figure enables foam quantities and depths for given areas to be calculated from a known solution flow.

  • Availability:
  • Corporate Authors:

    Institute of Marine Engineers

    Memorial Building, 76 Mark Lane
    London EC3R 7JN,   England 
  • Authors:
    • Evans, J L
  • Publication Date: 1980-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00329914
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM