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Title: Global distribution of ocean thermal energy conversion (OTEC) resources and applicability in U.S. waters near Florida.
Creator: Rauchenstein, Lynn., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: The following study explores the worldwide spatial and temporal distributions of electrical power that can be extracted from the ocean's stored solar energy via the process of closed-cycle ocean thermal energy conversion (OTEC). Special emphasis is placed on resources surrounding the state of Florida. The study combines oceanographic input from a state-of-the-art ocean circulation model, the Hybrid Coordinate Ocean Model, with a state-of-the-industry OTEC plant model to predict achievable...
Show moreThe following study explores the worldwide spatial and temporal distributions of electrical power that can be extracted from the ocean's stored solar energy via the process of closed-cycle ocean thermal energy conversion (OTEC). Special emphasis is placed on resources surrounding the state of Florida. The study combines oceanographic input from a state-of-the-art ocean circulation model, the Hybrid Coordinate Ocean Model, with a state-of-the-industry OTEC plant model to predict achievable power values across the world. These power predictions are then constrained by local replenishment rates of cold deep sea water to provide an upper limit to the sustainable OTEC resource. Next, the geographic feasibility of OTEC-coupled and OTEC-independent sea water cooling (air conditioning and refrigeration) are explored. Finally, the model data is validated against in situ oceanic measurements to ensure the quality of the predictions.
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Date Issued: 2012
PURL: http://purl.flvc.org/FAU/3358968
Subject Headings: Ocean energy resources, Ocean engineering, Geothermal energy, Power resources
Format: Document (PDF)

Title: A resource assessment of Southeast Florida as related to ocean thermal energy.
Creator: Leland, Anna E., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: An assessment of the thermal resource in the Straits of Florida was performed to estimate the Ocean Thermal Energy Conversion (OTEC) potential. Direct measurements of the temperature profile across the Florida Straits were taken from nearshore Southeast Florida to the Exclusive Economic Zone boundary along four evenly spaced transects perpendicular to Florida's Southeast coast, spanning 160 km. Along the southern transects in summer, nearshore cold and warm water resources meet or exceed the...
Show moreAn assessment of the thermal resource in the Straits of Florida was performed to estimate the Ocean Thermal Energy Conversion (OTEC) potential. Direct measurements of the temperature profile across the Florida Straits were taken from nearshore Southeast Florida to the Exclusive Economic Zone boundary along four evenly spaced transects perpendicular to Florida's Southeast coast, spanning 160 km. Along the southern transects in summer, nearshore cold and warm water resources meet or exceed the average 20ÀC temperature difference required for OTEC. In winter, the nearshore average DT of 17.76ÀC can produce 59-75% design net power and 70-86% in spring with DT averaging 18.25ÀC. Offshore along the southern transects, a high steady DT from 18.5- 24ÀC creates an annual average net power of 120-125MW. Along the northern transects, the nearshore resource does not exist, but a consistent OTEC resource is present offshore, providing 70-80% design net power in winter, and 100-158% in spring and summer.
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Date Issued: 2009
PURL: http://purl.flvc.org/FAU/369193
Subject Headings: Geothermal energy, Ocean energy resources, Ocean engineering, Power resources
Format: Document (PDF)

Title: Final Report: Siting study for a hydrokinetic energy project located offshore southeastern Florida: protocols for survey methodology for offshore marine hydrokinetic energy projects.
Creator: Vinick, C., Riccobono, A., Messing, Charles G., Walker, Brian K., Reed, John K., Rogers, S.
Date Issued: 2012
PURL: http://purl.flvc.org/FCLA/DT/3340533
Subject Headings: Ocean energy resources, Renewable energy, Geophysical surveys
Format: Document (PDF)

Title: Determining anchoring systems for marine renewable energy devices moored in a western boundary current.
Creator: Seibert, Michael G., Charles E. Schmidt College of Science, Department of Ocean and Mechanical Engineering
Abstract/Description: In this thesis anchoring systems for marine renewable energy devices are examined for an area of interest off the coast of Southeast Florida that contains both ocean current and thermal resources for future energy extraction. Bottom types observed during previous regional benthic surveys are compiled and anchor performance of each potential anchor type for the observed bottom types is compared. A baseline range of environmental conditions is created by combining local current measurements and...
Show moreIn this thesis anchoring systems for marine renewable energy devices are examined for an area of interest off the coast of Southeast Florida that contains both ocean current and thermal resources for future energy extraction. Bottom types observed during previous regional benthic surveys are compiled and anchor performance of each potential anchor type for the observed bottom types is compared. A baseline range of environmental conditions is created by combining local current measurements and offshore industry standards. Numerical simulations of single point moored marine hydrokinetic devices are created and used to extract anchor loading for two potential deployment locations, multiple mooring scopes, and turbine rotor diameters up to 50 m. This anchor loading data is used for preliminary anchor sizing of deadweight and driven plate anchors on both cohesionless and cohesive soils. Finally, the capabilities of drag embedment and pile anchors relevant to marine renewable energy devices are discussed.
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Date Issued: 2011
PURL: http://purl.flvc.org/FAU/3172697
Subject Headings: Ocean energy resources, Renewable energy sources, Deep-sea moorings, Ocean engineering, Geothermal energy
Format: Document (PDF)

Title: Prognosis and health management communications quality of service.
Creator: Tavtilov, Timur, Cardei, Ionut E., Graduate College
Date Issued: 2011-04-08
PURL: http://purl.flvc.org/fcla/dt/3164701
Subject Headings: Ocean energy resources, Computational linguistics, XML (Document markup language)
Format: Document (PDF)

Title: Design of hydrodynamic test facility and scaling procedure for ocean current renewable energy devices.
Creator: Valentine, William., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: Simulations have been carried out to validate a hydrokinetic energy system non-dimensional scaling procedure. The requirements for a testing facility intended to test such devices will be determined from the results of the simulations. There are 6 simulations containing 3 prototype systems and 2 possible model facility depths to give a range of results. The first 4 tests are conducted using a varying current profile, while the last 2 tests use a constant current profile of 1.6 m/s. The 3...
Show moreSimulations have been carried out to validate a hydrokinetic energy system non-dimensional scaling procedure. The requirements for a testing facility intended to test such devices will be determined from the results of the simulations. There are 6 simulations containing 3 prototype systems and 2 possible model facility depths to give a range of results. The first 4 tests are conducted using a varying current profile, while the last 2 tests use a constant current profile of 1.6 m/s. The 3 prototype systems include a: 6 m spherical buoy, a 12 m spherical buoy and a turbine component system. The mooring line used for the simulations is a 6x19 Wire Rope Wire Core of diameter 100 mm and length 1000 m. The simulations are implemented using Orcaflex to obtain the dynamic behavior of the prototype and scaled system.
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Date Issued: 2012
PURL: http://purl.flvc.org/FAU/3356013
Subject Headings: Ocean energy resources, Research, Renewable energy sources, Sustainable engineering, Materials, Deep-sea moorings
Format: Document (PDF)

Title: Characterization study of the Florida Current at 26.11 North Latitude, 79.50 West Longitude for ocean current power generation.
Creator: Raye, Robert Eric., Florida Atlantic University, Driscoll, Frederick R., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: Aquantis, LLC, Santa Barbara, California intends to construct and deploy an ocean current turbine (C-Plane) to extract electrical power from the kinetic energy of the Florida Current. This study characterizes the physical oceanographic environment of the Florida Current flow, at a proposed deployment site located at 26.11 North Latitude, 79.50 West Longitude, which will influence the physical and mechanical design of the C-Plane. Local characteristic features of the Florida Current were...
Show moreAquantis, LLC, Santa Barbara, California intends to construct and deploy an ocean current turbine (C-Plane) to extract electrical power from the kinetic energy of the Florida Current. This study characterizes the physical oceanographic environment of the Florida Current flow, at a proposed deployment site located at 26.11 North Latitude, 79.50 West Longitude, which will influence the physical and mechanical design of the C-Plane. Local characteristic features of the Florida Current were determined from data collected during a 19 month in situ study using an Acoustic Doppler Current Profiler (ADCP) moored at 330 meters, a ship-mounted, inertial-correcting ADCP, and data culled from adjacent studies. Principles of physical oceanography and direct observations are applied to characterize the velocity structure of the current and its variability. This thesis presents the motivation behind the study, methods of data collection, statistical and numerical analyses, and available energy analyses.
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Date Issued: 2002
PURL: http://purl.flvc.org/fcla/dt/12973
Subject Headings: Ocean energy resources, Ocean currents, Oceanography--Gulf Stream, Gulf Stream
Format: Document (PDF)

Title: Numerical Simulation and Performance Characterization of Two Wave Energy Converters.
Creator: DePietro, Abigail R., VanZwieten, James, Florida Atlantic University, Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science
Abstract/Description: This research consists of the numerical model development and simulation of two prototype Wave Energy Convertor designs (WECs) across three simulation types. The first design is an oscillating body WEC called the Platypus designed to capture wave energy as three paddle arms actuate over the surface of the waves. The second design is an overtopping type WEC called the ROOWaC which captures and drains entrained water to generate power. Modeling of these systems was conducted using two...
Show moreThis research consists of the numerical model development and simulation of two prototype Wave Energy Convertor designs (WECs) across three simulation types. The first design is an oscillating body WEC called the Platypus designed to capture wave energy as three paddle arms actuate over the surface of the waves. The second design is an overtopping type WEC called the ROOWaC which captures and drains entrained water to generate power. Modeling of these systems was conducted using two techniques: the Morison load approach implemented using hydrodynamic response coefficients used to model the Platypus and a boundary element method (BEM) frequency-domain approach to model both WEC designs in the time domain. The BEM models included the development of hydrodynamic response coefficients using a discretized panel mesh of the system for calculation of added mass, excitation, and radiation forces. These three model families provided both performance predictions and power output information to WEC developers that supply important data for future full-scale designs. These models were used to predict power generation estimates for both WECs as follows: the Platypus WEC was predicted to have a maximum efficiency range between 14.5-35% and the ROOWaC WEC was predicted to generate a maximum peak average power of 19 W upon preliminary results.
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Date Issued: 2022
PURL: http://purl.flvc.org/fau/fd/FA00013956
Subject Headings: Ocean energy resources--Research, Ocean wave power, Simulations, Mathematical methods and modelling
Format: Document (PDF)

Title: A hydrokinetic resource assessment of the Florida Current.
Creator: Smentek-Duerr, Alana E., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: The Straits of Florida has been noted as a potential location for extraction of the kydrokinetic energy of the Florida Current, in view of the strength of the current and its proximity to the shore. ... This research explores the Florida Current as a potential renewable energy source. By utilizing historical data, in situ observations of the Florida Current, and computer model data, the hydrokinetic resource of the Florida Current is characterized both spatially and temporally. Subsequently,...
Show moreThe Straits of Florida has been noted as a potential location for extraction of the kydrokinetic energy of the Florida Current, in view of the strength of the current and its proximity to the shore. ... This research explores the Florida Current as a potential renewable energy source. By utilizing historical data, in situ observations of the Florida Current, and computer model data, the hydrokinetic resource of the Florida Current is characterized both spatially and temporally. Subsequently, based on the geographic variability of the hydrokinetic power and other factors that impact the economy of a hydrokinetic turbine array installation, the ideal locations for turbine array installation within the Florida Current are identified.... Additionally, an interactive tool has been developed in which array parameters are input - including installation location, turbine diameter, turbine cut-in speed, etc. - and array extraction estimates, ideal installation position, and water depth at the installation points are output. As ocean model data is prominently used in this research, a discussion about the limitations of the ocean model data and a method for overcoming these limitations are described. Globally, the distribution of hydrokinetic power intensity is evaluated to identify other currents that have a high hydrokinetic resource.
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Date Issued: 2012
PURL: http://purl.flvc.org/FAU/3356018
Subject Headings: Renewable energy sources, Energy consumption, Renewable natural resources, Ocean energy sources
Format: Document (PDF)

Title: Environmental siting suitability analysis for commercial scale ocean renewable energy: a southeast Florida case study.
Creator: Mulcan, Amanda, Hanson, Howard P., Hindle, Tobin, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: This thesis aims to facilitate the siting and implementation of Florida Atlantic University Southeast National Marine Renewable Energy Center (FAU SNMREC) ocean current energy (OCE) projects offshore southeastern Florida through the analysis of benthic anchoring conditions. Specifically, a suitability analysis considering all presently available biologic and geologic datasets within the legal framework of OCE policy and regulation was done. OCE related literature sources were consulted to...
Show moreThis thesis aims to facilitate the siting and implementation of Florida Atlantic University Southeast National Marine Renewable Energy Center (FAU SNMREC) ocean current energy (OCE) projects offshore southeastern Florida through the analysis of benthic anchoring conditions. Specifically, a suitability analysis considering all presently available biologic and geologic datasets within the legal framework of OCE policy and regulation was done. OCE related literature sources were consulted to assign suitability levels to each dataset, ArcGIS interpolations generated seafloor substrate maps, and existing submarine cable pathways were considered for OCE power cables. The finalized suitability map highlights the eastern study area as most suitable for OCE siting due to its abundance of sand/sediment substrate, existing underwater cable route access, and minimal biologic presence. Higher resolution datasets are necessary to locate specific OCE development locales, better understand their benthic conditions, and minimize potentially negative OCE environmental impacts.
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004220, http://purl.flvc.org/fau/fd/FA00004220
Subject Headings: Marine resources development -- Case studies, Ocean energy resources -- Environmental aspects -- Case studies, Ocean wave power -- Case studies, Renewable energy sources -- Environmental aspects -- Case studies
Format: Document (PDF)

Title: Electromagnetic field emissions from underwater power cables.
Creator: DiBiasio, Christopher, Dhanak, Manhar R., Florida Atlantic University, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: This study is performed as a partial aid to a larger study that aims to determine if electromagnetic fields produced by underwater power cables have any effect on marine species. In this study, a new numerical method for calculating magnetic fields around subsea power cables is presented and tested. The numerical method is derived from electromagnetic theory, and the program, Matlab, is implemented in order to run the simulations. The Matlab code is validated by performing a series of tests...
Show moreThis study is performed as a partial aid to a larger study that aims to determine if electromagnetic fields produced by underwater power cables have any effect on marine species. In this study, a new numerical method for calculating magnetic fields around subsea power cables is presented and tested. The numerical method is derived from electromagnetic theory, and the program, Matlab, is implemented in order to run the simulations. The Matlab code is validated by performing a series of tests in which the theoretical code is compared with other previously validated magnetic field solvers. Three main tests are carried out; two of these tests are physical and involve the use of a magnetometer, and the third is numerical and compares the code with another numerical model known as Ansys. The data produced by the Matlab code remains consistent with the measured values from both the magnetometer and the Ansys program; thus, the code is considered valid. The validated Matlab code can then be implemented into other parts of the study in order to plot the magnetic field around a specific power cable.
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004277, http://purl.flvc.org/fau/fd/FA00004277
Subject Headings: DIstributed generation of electric power, Electromagnetic interference, Electromagnetic theory, Ocean energy resources -- Environmental aspects
Format: Document (PDF)

Title: Modeling and control of the "C-Plane" ocean current turbine.
Creator: VanZwieten, James H., Florida Atlantic University, Driscoll, Frederick R., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: The "C-Plane" is a submerged ocean current turbine that uses sustained ocean currents to produce electricity. This turbine is moored to the sea floor and is capable of changing depth, as the current profile changes, to optimize energy production. A 1/30th scale physical prototype of the C-Plane is being developed and the analysis and control of this prototype is the focus of this work. A mathematical model and dynamic simulation of the 1/30th scale C-Plane prototype is created to analyze this...
Show moreThe "C-Plane" is a submerged ocean current turbine that uses sustained ocean currents to produce electricity. This turbine is moored to the sea floor and is capable of changing depth, as the current profile changes, to optimize energy production. A 1/30th scale physical prototype of the C-Plane is being developed and the analysis and control of this prototype is the focus of this work. A mathematical model and dynamic simulation of the 1/30th scale C-Plane prototype is created to analyze this vehicle's performance, and aid in the creation of control systems. The control systems that are created for this prototype each use three modes of operation and are the Mixed PID/Bang Bang, Mixed LQR/PID/Bang Bang, and Mixed LQG/PID/Bang Bang control systems. Each of these controllers is tested using the dynamic simulation and Mixed PID/Bang Bang controller proves to be the most efficient and robust controller during these tests.
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Date Issued: 2003
PURL: http://purl.flvc.org/fcla/dt/12980
Subject Headings: Marine turbines--Automatic control, Ocean energy resources, Marine turbines--Mathematical models
Format: Document (PDF)

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