COST EFFECTIVENESS STUDY OF WASTEWATER MANAGEMENT SYSTEMS FOR SELECTED U.S. COAST GUARD VESSELS. VOLUME VI. MISSION PROFILES OF SELECTED U.S. COAST GUARD VESSELS
The operations of six U.S. Coast Guard vessels within and beyond restricted waters (within 3 miles from shore or on inland bodies of water) were analyzed in order to determine parameters which affect the design and operating costs of shipboard wastewater management systems. The maximum holding time (i.e., the longest continuous time within restricted waters) is a design parameter which affects equipment sizing. The system utilization factor and number of mode changeover cycles (from primary to overboard or pierside) affect operating costs. The latter two parameters were derived respectively from an analysis of the fraction of time the vessel is within restricted waters and the number of crossings of the three-mile limit as well as the number of shore dockings. Data for the analysis was obtained from visits to the vessels and examination of the logs. From a study of the recorded vessel operations and activities (buoys tended, fisheries patrol, search and rescue, shore dockings, etc.), reference to navigation maps and the assistance of vessel personnel, every sortie was analyzed in terms of its relevant characteristics namely, holding times, times beyond restricted waters, number of 3-mile crossings, and shore dockings. The lists of sortie holding times and times beyond restricted waters constituted basic data which was subjected to further computer-aided statistical analyses, including confidence limits on the maximum holding time for each vessel. Prior to data collection and analysis, pertinent guidelines and assumptions which have a significant effect on the analysis were established.
Bradford National Corporation1700 Broadway
New York, NY USA 10019
- Orbach, S
- Publication Date: 1977-2
- Pagination: 206 p.
- TRT Terms: Analysis; Cost effectiveness; Data collection; Economic analysis; Government vessels; Information processing; Operating costs; Pollution; Research; Sanitary engineering; Sewage treatment; Ships; Waste disposal; Wastewater
- Identifier Terms: United States Coast Guard; United States Coast Guard ships
- Uncontrolled Terms: Computer aided analysis; Waste treatment
- Old TRIS Terms: Economic analysis (Sewage treatment); Mission profiles; Sewage treatment systems; Shipboard sewage treatment
- Subject Areas: Economics; Environment; Marine Transportation; Research; Vehicles and Equipment;
- Accession Number: 00191082
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: USCG-D-78-77 Final Rpt.
- Contract Numbers: DOT-CG-52180-A
- Files: TRIS
- Created Date: May 11 1979 12:00AM