Accession Number : ADA190257

Title :   Propulsion Alternatives for an Undersea Autonomous Vehicle.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING

Personal Author(s) : Braun, John L

PDF Url : ADA190257

Report Date : Jun 1987

Pagination or Media Count : 87

Abstract : A study was conducted to determine suitable energy systems for small undersea autonomous vehicles. The two main goals of this study were: (1) to evaluate energy systems which would be able to provide 16 kW-hr for a vehicle of specified dimensions, and; (2) to evaluate energy systems which may be used in the future for longer duration, higher speed missions. It was concluded that silver-zinc secondary batteries are satisfactory for the low energy requirement. There is some uncertainty about the most suitable energy source for the higher energy mission. There are no fully developed systems which are completely safe, reliable, and readily available for use. Lithium thionyl chloride batteries, and lithium sulfurhexafluoride thermal power plants are the main contenders and have comparable energy densities. There are concerns, however, about the safety and availability of each of these systems.

Descriptors :   *STORAGE BATTERIES, *UNDERWATER VEHICLES, *MARINE PROPULSION, *ELECTRIC PROPULSION, DENSITY, ELECTRIC BATTERIES, ENERGY, ENERGY CONSUMPTION, LITHIUM COMPOUNDS, LOW ENERGY, SILVER ZINC BATTERIES, SOURCES, THIONYL CHLORIDE, TIME, VELOCITY, STEAM TURBINES, LITHIUM FLUORIDES, SULFUR COMPOUNDS, COMBUSTORS, RADIOACTIVE ISOTOPES, NUCLEAR PROPULSION

Subject Categories : Submarine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE