WEC

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Wave Energy Resource Characterization at US Test Sites

Sandia is creating on an open-source catalogue for wave-energy converter (WEC) developers with a detailed and consistent wave resource characterization at three US test sites the Wave Energy Test Site (WETS) in Kaneohe Bay, HI; the North Energy Test Site (NETS) offshore of Newport, OR; and a potential site offshore of Humboldt Bay, CA. Hindcast [...]

By | 2016-12-02T18:48:27+00:00 September 16th, 2014|Computational Modeling & Simulation, Energy, News, News & Events, Renewable Energy, Systems Analysis, Water Power|Comments Off on Wave Energy Resource Characterization at US Test Sites

Understanding Seasonal Effects of WEC Operation using the SNL-SWAN Wave Model Application

Significant wave height differences between model simulation results for extreme conditions with and without the WEC array, here consisting of 50 F-2HB device types. The initial wave heights ranged from 3 to 4.9 m and initial wave periods ranged between 11.5 and 18.1 sec over the four seasons. The initial wave direction was 300°. [...]

By | 2016-12-02T18:48:30+00:00 July 31st, 2014|Computational Modeling & Simulation, Energy, News, News & Events, Renewable Energy, Systems Analysis, Systems Engineering, Water Power|Comments Off on Understanding Seasonal Effects of WEC Operation using the SNL-SWAN Wave Model Application

Sandia, NREL Release Wave Energy Converter Modeling and Simulation Code: WEC-Sim

An image of the Reference Model 3 (RM3) heaving two-body point absorber model as set up (left) and run (right) in WEC-Sim. Sandia and the National Renewable Energy Laboratory (NREL) are partnered in a three-year project to develop and verify WEC-Sim, an open-source numerical modeling tool to analyze and optimize wave-energy converters (WECs). [...]

By | 2017-07-25T18:51:40+00:00 July 29th, 2014|Computational Modeling & Simulation, Energy, News, News & Events, Partnership, Renewable Energy, Water Power|Comments Off on Sandia, NREL Release Wave Energy Converter Modeling and Simulation Code: WEC-Sim

SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter Module

Sandia is developing accurate methods to simulate altered wave propagation due to the operation of wave farms by enhancing the open-source spectral wave model, SWAN. The new model, SNL-SWAN, remains open source and will help the wave-energy converter (WEC) industry assess the potential environmental effects created by changes in wave climates associated with the deployment [...]

By | 2016-12-02T18:48:32+00:00 June 26th, 2014|Computational Modeling & Simulation, Energy, News, News & Events, Renewable Energy, Water Power|Comments Off on SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter Module

SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter (WEC) Module

Sandia is developing accurate methods to simulate altered wave propagation due to the operation of wave farms by enhancing the open-source spectral wave model, SWAN. The new model, SNL-SWAN, remains open source and will help the WEC industry assess the potential environmental effects created by changes in wave climates associated with the deployment of various [...]

By | 2016-12-02T18:48:33+00:00 June 18th, 2014|Energy, Renewable Energy, Water Power|Comments Off on SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter (WEC) Module

WEC-Sim Code Development Meeting at the National Renewable Energy Laboratory

Reference Model 3 (RM3) heaving two-body point absorber full-scale dimensions. Sandia’s Kelley Ruehl and Carlos Michelen (both in Sandia’s Water Power Technologies Dept.) traveled to the Boulder, Colorado, for a WEC-Sim meeting at the National Renewable Energy Laboratory’s (NREL’s) National Wind Technology Center from March 3–5 in their combined effort to prepare for [...]

By | 2016-12-02T18:48:37+00:00 April 29th, 2014|Computational Modeling & Simulation, Energy, News, News & Events, Partnership, Renewable Energy, Systems Analysis, Systems Engineering, Water Power|Comments Off on WEC-Sim Code Development Meeting at the National Renewable Energy Laboratory

WEC-Sim Code Development Updates and Meeting

Comparison of WEC-Sim implementation for the RM3 two-body point absorber (a) using the new physical-system formulation and (b) using the old equation-of-motion formulation. Sandia and NREL are involved in a three-year project to develop and verify WEC-Sim, an open-source numerical modeling tool to analyze and optimize wave-energy converters (WECs). The code, written in Matlab/Simulink/SimMechanics, [...]

By | 2016-12-02T18:48:41+00:00 March 13th, 2014|Computational Modeling & Simulation, Energy, News, News & Events, Water Power|Comments Off on WEC-Sim Code Development Updates and Meeting

Advanced Controls of Wave Energy Converters May Increase Power Capture Up to 330%

Although ocean waves represent an enormous energy resource, most existing WEC designs efficiently produce power only within a narrow wave frequency range. Advanced control of the power-conversion chain can alter this paradigm. Models have shown absorbed-power increases ranging from 100% to 330%. To move from idealized, theoretical paper studies to deployable WEC hard­ware, requires rigorous [...]

By | 2016-12-02T18:48:44+00:00 January 21st, 2014|Computational Modeling & Simulation, Energy, News, News & Events, Partnership, Renewable Energy, Water Power|Comments Off on Advanced Controls of Wave Energy Converters May Increase Power Capture Up to 330%

Joint Sandia-DOE-HMRC Testing of a Floating Oscillating Water Column Wave Energy Converter Device

From September 8th–20th, Diana Bull (in Sandia’s Water Power Technologies Dept.) worked with the team from Ireland’s Hydraulics and Maritime Research Centre (HMRC) to complete testing of Reference Model 6, a backward-­bent duct buoy (BBDB) oscillating water column wave energy converter design. Testing was completed in both the flume as well as Ireland’s Hydraulics [...]

By | 2016-12-02T18:48:46+00:00 November 11th, 2013|Energy, News, News & Events, Partnership, Renewable Energy, Water Power|Comments Off on Joint Sandia-DOE-HMRC Testing of a Floating Oscillating Water Column Wave Energy Converter Device

Sandia-NREL Wave Energy Converter (WEC)-Sim Development Meeting

Kelley Ruehl and Sam Kanner (both in Sandia’s Water Power Technologies Dept.) hosted a three-day meeting onsite at Sandia that was attended by Yi-Hsiang Yu, Michael Lawson, and Adam Nelessen of the National Renewable Energy Laboratory to further develop WEC-Sim, a multiple-year, DOE-funded, joint NREL/Sandia project to develop an open-source WEC modeling tool. A [...]

By | 2016-12-02T18:48:52+00:00 August 28th, 2013|Computational Modeling & Simulation, Energy, Partnership, Renewable Energy, Water Power|Comments Off on Sandia-NREL Wave Energy Converter (WEC)-Sim Development Meeting