An account is given of the development of a laboratory coolant test rig for the evaluation of corrosion inhibitors for both water and antifreeze diesel engine coolants. This paper also comments on the rig operating experience gained so far and reports on the variety of coolant problems investigated with the test rig. It is emphasized that laboratory corrosion studies can only give meaningful results if they ensure that experiments take reasonable account of all factors likely to affect corrosion under service conditions. These factors are itemized together with their likely effects on corrosion. Attention is also drawn to the fact that inhibitors must not have an adverse effect on heat transfer, even if they effectively prevent metals corroding. Details of a number of engine tests are given and comparison of engine and rig inhibitor depletion rates can be made to verify the validity of the rig test procedure. An unusual experience is quoted to illustrate the importance of cleanliness in an engine's cooling system prior to the introduction of coolant.

  • Availability:
  • Corporate Authors:

    Institute of Marine Engineers

    Memorial Building, 76 Mark Lane
    London EC3R 7JN,   England 
  • Authors:
    • Harvey, D N
  • Publication Date: 1974

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00071929
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Series A, Part 4
  • Files: TRIS
  • Created Date: Nov 12 1974 12:00AM