首页|A Preliminary Study on Floating Flexible OTEC Cold Water Pipe
A Preliminary Study on Floating Flexible OTEC Cold Water Pipe
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NETL
NSTL
Natl Taiwan Ocean Univ
Ocean Thermal Energy Conversion (OTEC) requires a large amount of cold seawater. The traditional rigid pipe, semirigidlyfixed onto the ship bottom is not easy to install and disassemble, so the Floating Flexible Cold Water Pipe(FFCWP) flexibly connected to the ship is proposed. A small FFCWP was designed, fabricated, and successfully installedand recovered in the sea. The flexible pipe adopts commercially available fire ventilation snake pipe. The pipe wallmaterial strength must be improved in the future. Assuming that the drag coefficient Cd value is 1.5, a numericalcalculation is employed to simulate the FFCWP attitude from the action of ocean currents. Ocean currents cause thelower pipe inlet to rise. The main influencing factors on pipe design are pipe radius, ocean current speed and pipeweight per unit pipe length. Because the FFCWP ascension quite large as the ocean current becomes greater than 0.5knots, it is recommended that the grazing OTEC plant ship allow pipe drifting when generating electricity.
Grazing OTECFloating flexible cold water pipeSea testLower inlet depth
Nai Kuang Liang、Hai Kuen Peng
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Ocean Center, National Taiwan University, Taiwan, Republic of China
National Marine Museum of Science and Technology, Keelung, Taiwan, Republic of China
NETL
NSTL
Natl Taiwan Ocean Univ
