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Study on Applicability of Floating OTEC Platform Configurations

Abstract

The escalating demand for sustainable energy solutions has led to increased exploration of alternative technologies, such as Ocean Thermal Energy Conversion (OTEC). This study delves into the selection of a suitable platform configuration for a 100 MW OTEC system, with a focus on the intricate coupling effects of Cold Water Pipes (CWPs). It conducts a comprehensive investigation into platform movements and CWP dynamic characteristics in waves and currents, considering two deep draft semi-submersible (DDS) types and a spar configuration. Numerical analysis reveals comparable performance among semi-submersible platforms in movement and pipe impact, while the spar configuration, despite initial rotation, demonstrates more stable CWP dynamic responses. This research addresses a critical gap in current OTEC development by emphasizing the necessity for systematic platform selection tailored to specific sea areas.