Browsing Marine Energy Technology Symposium by Title
Now showing items 1-20 of 50
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Analysis and Proof‐of‐Concept Experiment of Liquid‐Piston Compression for Ocean Compressed Air Energy Storage (OCAES) System
(2014-04)An analysis and a proof‐of‐concept experiment of liquid‐piston compression were conducted for a table‐top Ocean Compressed Air Energy Storage (OCAES) prototype. A singlecylinder‐ type piston surrounded by water was modeled ... -
Analysis of the Impacts of Wave Energy Converter Arrays on the Nearshore Wave Climate
(2014-04)This study analyzes the impacts of offshore Wave Energy Converter (WEC) arrays on far-field waves and on nearshore wave-induced hydrodynamic forcing for a variety of array designs and incident wave conditions. The main ... -
Annex IV - Investigating Environmental Effects of Wave and Tidal Devices Through International Cooperation
(2014-04)The pace of development for marine energy projects worldwide continues to be hindered by uncertainty surrounding potential environmental effects of wave and tidal devices and the balance of system. In response to this ... -
Array Optimization for Tidal Energy Extraction in a Tidal Channel – A Numerical Modeling Analysis
(2014-04)This paper presents an application of a hydrodynamic model to simulate tidal energy extraction in a tidal dominated estuary in the Pacific Northwest coast. A series of numerical experiments were carried out to simulate ... -
CACTUS Open Source Code for Hydrokinetic Turbine Design and Analysis: Model Performance Evaluation and Public Dissemination as Open Source Design Tool
(2014-04)Sandia National Laboratories recently released an open source code for design and analysis of axial‐flow and cross‐flow marine and hydrokinetic (MHK) turbines, CACTUS (Code for Axial and Cross‐flow TUrbine Simulation), and ... -
Control of a Helical Cross‐Flow Current Turbine
(2014-04)Adaptive control strategies utilizing preview information of upstream velocity are promising approaches for enhancing performance and reducing loads on hydrokinetic turbines. A control scheme relating a turbine's characteristic ... -
Design and Initial Component Tests of an integrated Avian and Bat Collision Detection System for Offshore Wind Turbines
(2014-04)We describe the development and initial testing of a multi‐sensor instrumentation package capable of detecting avian and bat interactions with offshore wind turbines. The system design emphasizes the ability to detect ... -
Determining the Spatial Coherence of Turbulence at MHK Sites
(2014-04)Although turbulence is thought to be a key variable in the performance and survivability of Marine Hydrokinetic turbines, it has not been fully characterized at sites where they will be deployed. In particular, the ... -
Development and Demonstration of The WEC-Sim Wave Energy Converter Simulation Tool
(2014-04)The National Renewable Energy Laboratory (NREL) and Sandia National Laboratories (SNL) have developed WEC-Sim to provide the wave energy converter (WEC) design community with an open-source simulation tool. WEC-Sim models ... -
Development of a Driving Electric Dynamometer Rotor Emulator for MHK In‐Stream Turbines
(2014-04)As marine and hydrokinetic (MHK) technologies which convert the flow of fluid into useful electrical power are developed, it is desirable to simulate drivetrain performance and refine control strategies in a laboratory ... -
Development of an Adaptable Monitoring Package for Marine Renewable Energy Projects Part I: Conceptual Design and Operation
(2014-04)The Adaptable Monitoring Package (AMP), along with a remotely operated vehicle (ROV) and custom tool skid, is being developed to support near-field (≤10 meters) monitoring of hydrokinetic energy converters. The AMP is ... -
Development of an Adaptable Monitoring Package for Marine Renewable Energy Projects Part II: Hydrodynamic Performance
(2014-04)The Adaptable Monitoring Package (AMP), along with a remotely operated vehicle (ROV) and custom tool skid, is being developed to support near-field (≤10 meters) monitoring of hydrokinetic energy converters. The AMP is ... -
Discrete Element Modeling of Blade–Strike Frequency and Survival of Fish Passing Through Hydrokinetic Turbines
(2014-04)Evaluating the consequences to fish from blade-strike on marine hydrokinetic (MHK) turbine blades is important for incorporating environmental objectives into the integral optimization of machine performance. For instance, ... -
Dynamic Modelling of Compliant-Moored Submerged Systems with Applications to Marine Energy Converters
(2014-04)This paper presents a full‐range‐of‐motion numerical model of the dynamic characteristics of compliant‐moored submerged systems in unsteady fluid flow using a first‐principles approach. The program, implemented using the ... -
Evaluation of Hycom as a Tool for Ocean Current Energy Assessment
(2014-04)This paper provides a global ocean circulation model based world-wide assessment of two flow characteristics and presents a direct comparison between model based predictions and in situ measurements in two regions. Four ... -
Experimental and Numerical Analysis of a Scale-Model Horizontal Axis Hydrokinetic Turbine
(2014-04)This paper presents an experimental/numerical study of a scale-model Horizontal Axis Hydrokinetic Turbine (HAHT). The model turbine is based on the DOE Reference Model 1 (DOE RM1), with a modified geometry to reproduce ... -
Experimental Study of Tribological Performance of Bearing-Seal Assembly of Hydrokinetic Devices in Sedimented Water
(2014-04)In this study, wear of polymer and ceramic coated bearings for use in hydrokinetic devices were investigated in sedimented water under the loading conditions similar to those expected in the field using a customized flume. ... -
Externally Bonded FBG Strain Sensors Structural Health Monitoring of Marine Hydrokinetic Structures
(2014-04)To reduce operations and maintenance costs, mitigate failures, and improve capacity factor, structural health‐monitoring systems can provide key information to improve management of marine hydrokinetic devices. While present ... -
Fatigue Life Distribution for a Simple Wave Energy Converter
(2014-04)Fatigue is known to be a dominant failure mode for systems subjected to wave loading. A time domain simulation of loading on a simple Wave Energy Converter (WEC) was used to develop the distribution of fatigue failures ... -
Field Measurement Test Plan to Determine Effects of Hydrokinetic Turbine Deployment on Canal Test Site in Yakima, WA, USA
(2014-04)The primary goal of the Department of Energy’s Water Power Program is to efficiently develop and utilize the country’s marine hydrokinetic (MHK) and conventional hydropower (CH) resources. The program has recently identified ...
