Investigation of Shipboard Distilling Plant Energy Consumption.
Research and development rept.,
NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD PROPULSION AND AUXILIARY SYSTEMS DEPT
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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 freshwater produced as compared to 601 British thermal units per pound based upon the manufacturers technical manual data. Boiler and electrical conversion inefficiencies were found to have a measurable contribution to the overall distiller energy consumption.
- Industrial Chemistry and Chemical Processing
- Marine Engineering