GL Garrad Hassan to validate Tidal Bladed with new data
4. Nov. 2013 | [Group,Renewables] |
After a successful initial study to validate their tidal turbine design software Tidal Bladed, GL Garrad Hassan are preparing for the next phase of full scale validation, under the Reliable Data Acquisition Project for Tidal (ReDAPT) project. Tidal Bladed is a commercial software package which can be used to calculate the performance of, and loading on, tidal stream energy converters in the tidal stream environment.
Initial comparisons to measurements taken from the Tidal Generation Limited (TGL) 500kW tidal turbine have shown that Tidal Bladed gives very accurate predictions of the mean values of blade near-root flapwise bending loads, rotor speed, electrical power and pitch angle. Improved characterisation of the turbulent flow structure was identified as key to understanding and predicting the dynamic loading on tidal turbines.
Since its initial deployment in January 2013, the TGL 1MW turbine has been collecting high quality flow data using several Single Beam Acoustic Doppler Profilers (SBDs) mounted on the device. Many hours of flow data have already been collected and the data is currently undergoing analysis at GL Garrad Hassan. This analysis should lead to new understanding of the flow structures present in tidal stream turbulence and improved prediction of turbine dynamic loading.
The development of the GL Garrad Hassan Tidal SCADA system is allowing high frequency real time turbine performance and load data to be collected alongside the environmental conditions. This concurrent machine and environmental data is critical to the understanding of how the machine behaves in the harsh marine environment. Reducing the uncertainties in the loading and performance calculations used will allow for more cost effective tidal turbine designs.
The ReDAPT project was commissioned and funded by the Energy Technologies Institute (ETI) and aims to increase public and industry confidence in tidal turbine technologies by providing a wide range of environmental impact and performance information, as well as demonstrating a new, reliable turbine design.
Tidal Bladed is used by the majority of leading tidal turbine manufacturers as their primary tool for prediction of turbine performance and loading during the design process. The software is also used within certification and academia. GL Garrad Hassan offers training courses in the use of Tidal Bladed, to aid confident and effective use of the software and improve understanding of tidal turbine fundamental theory.
About TGL / Alstom
Tidal Generation Limited (TGL) designs, develops and manufactures tidal stream turbines for the capture and conversion of tidal energy to electrical power. In January 2013, TGL was acquired by Alstom after the successful installation of the 1MW tidal turbine on the same tripod support structure used to deploy the previously tested 500kW device. See the following link for more details.
About the ETI
The Energy Technologies Institute (ETI) is a public-private partnership between global energy and engineering companies – BP, Caterpillar, EDF, E.ON, Rolls-Royce and Shell – and the UK Government. The ETI is focused on accelerating the deployment of affordable, secure low-carbon energy systems for 2020 to 2050 by demonstrating technologies, developing knowledge, skills and supply-chains and informing the development of regulation, standards and policy.
The ETI commissioned and co-funded ReDAPT (Reliable Data Acquisition Platform for Tidal) consortium project is led by TGL, and includes Garrad Hassan, the University of Edinburgh, EDF Energy, E.ON, Plymouth Marine Laboratory and the European Marine Energy Centre (EMEC).
About GL Garrad Hassan
GL Garrad Hassan is one of the world’s largest renewable energy consultancies and a recognised technical authority on the subject. It offers independent technical and engineering services, products, and training courses to the onshore and offshore wind, wave, tidal and solar sectors. The renewable energy consultancy currently employs around 1000 staff, in 44 locations, across 26 countries. For more information on GL Garrad Hassan, please visit www.gl-garradhassan.com
As of 12 September 2013, DNV and GL have merged to DNV GL
The new company DNV GL has started operating as one company with effect from 12 September 2013. DNV GL forms the world’s largest ship and offshore classification society, a leading technical advisor to the oil & gas industry and a leading expert for the energy value chain including renewables. DNV GL also takes the position as one of the top three certification bodies in the world. Read more here: www.dnv.com/merger