Technical manual data on shipboard freshwater distillers were used to perform energy balances on various ship distilling units and obtain quantitative figures on the energy consumed to produce desalinated water. Similar energy balances were carried out on distillation systems as installed aboard particular ships. The latter analysis, which used ship design heat balances (or trial heat balances when available) to calculate the energy per pound of water, took into account the interaction between the ship steam propulsion plant and the distillers. The results showed that, for the 12 ships examined, the calculated energy consumption averaged 434 British thermal units per pound of fresh-water produced as compared to 601 British thermal units per pound based upon the manufacturer's technical manual data. Boiler and electrical conversion inefficiencies were found to have a measurable contribution to the overall distiller energy consumption.

  • Corporate Authors:

    Naval Ship Research and Development Center

    Department of Propulsion and Auxiliary Systems
    Annapolis, MD  United States  21402
  • Authors:
    • Rankin, B H
    • Huckenpoehler, W B
    • Adamson, W L
  • Publication Date: 1975-5

Media Info

  • Pagination: 67 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00098781
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: PAS-74-60 R&D Report
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM