PARAMETERS FOR A SHIP HULL CLEANING SYSTEM USING THE CAVITATING WATER JET METHOD

This report describes the first part of a program to determine the parameters required for systems which utilize the CAVIJET (cavitating waterjet) method to remove fouling paint and rust from ship hulls, propellers, appendages and other components. System, operating, and performance characteristics, with emphasis on a hand-held system comparable to those now used during the dry dock cleaning of a ship, were developed under this program. Laboratory fouling removal rates of 900 to 1030 square feet/hr were achieved on submerged test panels heavily encrusted with barnacles and other marine growths, using 1/4-in. or dual 1/8-in. cavitating water jet nozzles, at pressures of 1500 to 2000 psi. These rates are comparable to sandsweeping methods, with none of the attendant pollution problems.

• Supplemental Notes:
  • Also published by Maritime Administration, Report No. MA-6562. Prepared in cooperation with Todd Shipyards Corporation, Galveston, Texas.
• Corporate Authors:

  Hydronautics, Incorporated

  7210 Pindel School Road
  Laurel, MD  United States  20810
• Authors:
  • Conn, A F
  • Rudy, S L
• Publication Date: 1975-5

Media Info

• Pagination: 129 p.

Subject/Index Terms

• TRT Terms: Cavitation (Mechanics); Cleaning; Cleaning equipment; Hulls; Marine fouling; Waterjets
• Old TRIS Terms: Hull cleaning; Waterjet cleaning
• Subject Areas: Maintenance and Preservation; Marine Transportation;

Filing Info

• Accession Number: 00165434
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TR-7510-1 Final Rpt.
• Files: TRIS
• Created Date: Nov 23 1977 12:00AM