Energy and Climate

Water Power

Tidal Energy Resource Assessment in the East River Tidal Strait, New York

Sandia recently worked together with Verdant Power, Inc., and Oak Ridge National Laboratory to conduct two-months of high-resolution velocity and turbulence measurements using acoustic Doppler velocimeters (ADVs) at the Roosevelt Island Tidal Energy (RITE) site. Verdant Power was recently given permission by Federal Energy Regulatory Commission to deploy up to 30 axial-flow turbines at this […]

High-Fidelity Hydrostructural Analysis of Ocean Renewable Power Company’s (ORPC’s) TidGen® Turbine

Sandia is performing a high-fidelity hydrostructural analysis of the Ocean Renewable Power Company’s (ORPC’s) TidGen® turbine using the computational fluids dynamics (CFD) tool Star CCM+® and the structural-dynamics modeling capability in the Abaqus finite-element analysis (FEA) software. Hydrodynamic loadings from the CFD simulation will provide inputs to the Abaqus FEA model through fluid–structure coupling. The […]

Sandia–Atmocean Inc.’s New Mexico Small Business Assistance Project

Sandia led a six-month project funded by the New Mexico Small Business Assistance (NMSBA) on “Subsea Modeling of an Innovative Wave Energy Array Using OrcaFlex Software,” in which we supported developing and modeling the mooring system for Atmocean Inc.’s Ocean HydroPower System (OHS™). This project involved three New Mexico small businesses Atmocean Inc. (wave-energy converter […]

Evaluating Hydrokinetic Turbine Operation within Roza Canal, Yakima, Washington

The DOE Water Power Program has recently identified the need to better understand the potential for hydrokinetic (HK) energy development within existing canal systems. HK turbine operation alters water surface elevations and modifies its flow in canals. Primary canal-water uses—for irrigation, in flood management, and/or for conventional hydropower plant—will not tolerate significant altera­tions or hydrodynamic energy […]

WEC-Sim Code Development Updates and Meeting

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, was recently restructured significantly after its internal alpha release. The new programming format allows users to construct the physical system based on a library of […]

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