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.