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As part of an ongoing effort to create a publicly accessible GIS database that characterizes the global OTEC resource, more than two years of daily HYCOM (Hybrid Coordinate Ocean Model) temperature data were processed. This global dataset was used to estimate annual and seasonal averages of the temperature gradient between the sea surface and water at 1000 m depth, a parameter commonly used for quantifying...
This document presents the experimentally determined power generation efficiency for the drive-train and motor of a 20 kW experimental ocean current turbine. This efficiency assessment was performed using a custom designed dynamometer and covered much of the generator's expected operating range. These measurements are used with numerically modeled rotor performance to predict the overall efficiency...
Confirmed ocean current and thermal resources off the coast of south east Florida have the potential to mitigate Florida's increasing energy needs with the deployment of marine renewable energy (MRE) technologies. Potential anchors have been selected in this work for use in mooring MRE systems in specific energy dense locations. Simulations of single point moored hydrokinetic turbines were created...
Three station keeping controllers have been developed which work to minimize displacement of a small outboard-powered vessel from a desired location. Each of these three controllers has a common initial layer that uses fixed-gain feedback control to calculate the desired heading of the vessel. A second control layer uses a common fixed-gain feedback controller to calculate the net forward thrust,...
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