Systems Descriptions and Engineering Costs for Solar-Related Technologies VolumeⅦ Ocean Thermal Energy Conversion

摘要

The ocean thermal energy conversion (OTEC) study projects the capital cost of this technology through the end of the century. This projection is based on a generic design resulting from the analysis and collation of features of designs proposed by the TW Systems Group, Inc., and Lockheed Missile and Space Company, Inc. (LSMC). The generic design is based on a spar-buoy hull, a titanium heat exchange- and a fiber-reinforced plastic cold water pipe. Reduction of the base plant cost derived ($2930 per kWe) is achiev¬able through alternatie heat exchanger material selection, improved technology, and manufacturing experience. These are estimated to reduce production plant costs to $1463 per kWe. A recently revised LMSC design, based on a higher temperature differential and aluminum heat exchangers, results in a published power cost of $1294 per kWe in 1975 dollars for a temperature differential of 37.8°F.