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Title: Ocean Thermal Energy Conversion moored pipe/mobile platform design study

Abstract

The Ocean Thermal Energy Conversion (OTEC) Moored Pipe/Mobile Platform (MP-Squared) Design Study was carried out to investigate an innovative approach to the moored floating OTEC plant. In the past, a number of concepts have been examined by NOAA for floating OTEC plants. These concepts have considered various configurations for platforms, cold water pipes and mooring systems. In most cases the cold water pipe (CWP) was permanently attached to the platform and the platform was permanently moored on station. Even though CWP concepts incorporating articulated joints or flexible pipes were used, the CWP stresses induced by platform motion were frequently excessive and beyond the design limits of the CWP. This was especially true in the survival (100-year storm) case. It may be feasible that the concept of a permanently moored CWP attached through a flexible transition CWP to the platform could reduce the degree of technical risk by de-coupling the CWP from the motions of the platform. In addition, if the platform is capable of disconnecting from the CWP during survival conditions, even less technical risk may be inherent in the OTEC system. The MP-Squared Design Study was an engineering evaluation of the concepts described above. The effort has been carriedmore » through to the conceptual design level, and culminated in model tests in an experimental wave basin.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Giannotti and Associates, Inc., Annapolis, MD (USA)
OSTI Identifier:
5069390
Report Number(s):
PB-83-221358; DOE/NOAA/OTEC-51; NOAA-83062012
ON: DE84002481
DOE Contract Number:
AI01-77ET20396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; OCEAN THERMAL ENERGY CONVERSION; OFFSHORE PLATFORMS; DESIGN; MOORINGS; PIPES; TESTING; CONVERSION; ENERGY CONVERSION; SOLAR ENERGY CONVERSION; 140800* - Solar Energy- Ocean Energy Systems

Citation Formats

Bullock, H.O., McNatt, T.R., Ross, J.M., Stambaugh, K.A., and Watts, J.L. Ocean Thermal Energy Conversion moored pipe/mobile platform design study. United States: N. p., 1982. Web.
Bullock, H.O., McNatt, T.R., Ross, J.M., Stambaugh, K.A., & Watts, J.L. Ocean Thermal Energy Conversion moored pipe/mobile platform design study. United States.
Bullock, H.O., McNatt, T.R., Ross, J.M., Stambaugh, K.A., and Watts, J.L. 1982. "Ocean Thermal Energy Conversion moored pipe/mobile platform design study". United States. doi:.
@article{osti_5069390,
title = {Ocean Thermal Energy Conversion moored pipe/mobile platform design study},
author = {Bullock, H.O. and McNatt, T.R. and Ross, J.M. and Stambaugh, K.A. and Watts, J.L.},
abstractNote = {The Ocean Thermal Energy Conversion (OTEC) Moored Pipe/Mobile Platform (MP-Squared) Design Study was carried out to investigate an innovative approach to the moored floating OTEC plant. In the past, a number of concepts have been examined by NOAA for floating OTEC plants. These concepts have considered various configurations for platforms, cold water pipes and mooring systems. In most cases the cold water pipe (CWP) was permanently attached to the platform and the platform was permanently moored on station. Even though CWP concepts incorporating articulated joints or flexible pipes were used, the CWP stresses induced by platform motion were frequently excessive and beyond the design limits of the CWP. This was especially true in the survival (100-year storm) case. It may be feasible that the concept of a permanently moored CWP attached through a flexible transition CWP to the platform could reduce the degree of technical risk by de-coupling the CWP from the motions of the platform. In addition, if the platform is capable of disconnecting from the CWP during survival conditions, even less technical risk may be inherent in the OTEC system. The MP-Squared Design Study was an engineering evaluation of the concepts described above. The effort has been carried through to the conceptual design level, and culminated in model tests in an experimental wave basin.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1982,
month = 7
}

Technical Report:
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