Date of Award

Spring 2013

Project Type

Thesis

Program or Major

Ocean Engineering

Degree Name

Master of Science

First Advisor

M Robinson Swift

Abstract

Conceptual designs were investigated for a tidal hydrokinetic device test facility at Muskeget Channel, MA. Six platform concepts were investigated for devices of various sizes: A floating platform, a submerged buoyant platform, a fixed bottom-mounted gravity foundation, a telescoping bottom-mounted gravity foundation, a fixed four-pile group foundation, and a two-pile surface-piercing structure that could raise and lower a device. A natural berth option was also considered. Designs for each concept were developed for structural soundness, dynamic response, vibration, scour, corrosion, bio-fouling, electrical connection, monitoring, operating limits, ease of turbine installation and access, and cost. The floating platform and two-pile platform were found to be the most practical. A floating platform would require less installation work and would be easier to remove at the end of its service life, but would need to be towed to port for extreme weather. A two-pile, surface-piercing platform would constitute a more significant infrastructure investment.

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