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Title: Ocean thermal energy conversion cold water pipe preliminary design project. Task 2. Analysis for concept selection

Technical Report ·
DOI:https://doi.org/10.2172/5276162· OSTI ID:5276162

The successful performance of the CWP is of crucial importance to the overall OTEC system; the pipe itself is considered the most critical part of the entire operation. Because of the importance the CWP, a project for the analysis and design of CWP's was begun in the fall of 1978. The goals of this project were to study a variety of concepts for delivering cold water to an OTEC plant, to analyze and rank these concepts based on their relative cost and risk, and to develop preliminary design for those concepts which seemed most promising. Two representative platforms and sites were chosen: a spar buoy of a Gibbs and Cox design to be moored at a site off Punta Tuna, Puerto Rico, and a barge designed by APL/Johns Hopkins University, grazing about a site approximately 200 miles east of the coast of Brazil. The approach was to concentrate on the most promising concepts and on those which were either of general interest or espoused by others (e.g., steel and concrete concepts). Much of the overall attention, therefore, focused on analyzing rigid and compliant wall design, while stockade (except for the special case of the FRP stockade) and bottom-mounted concepts received less attention. A total of 67 CWP concepts were initially generated and subjected to a screening process. Of these, 16 were carried through design analysis, costing, and ranking. Study results are presented in detail. (WHK)

Research Organization:
TRW Defense and Space Systems Group, Redondo Beach, CA (USA)
DOE Contract Number:
EG-77-A-29-1078
OSTI ID:
5276162
Report Number(s):
DOE/NOAA/OTEC-31
Country of Publication:
United States
Language:
English