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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL ANALYSIS OF THE INFLUENCE OF CHAMBER SIZES AND TURBINE CHARACTERISTICS ON AN OSCILLATING WATER COLUMN WAVE ENERGY CONVERTER
Submission Author:
Guilherme Ferreira Wiener , RS
Co-Authors:
Guilherme Ferreira Wiener, Paulo Teixeira, Eric Didier
Presenter: Guilherme Ferreira Wiener
doi://10.26678/ABCM.ENCIT2020.CIT20-0201
Abstract
Nowadays, renewable energy is a topic widely discussed in scientific community. Specifically wave energy attracts attention because it has a high energy potential distributed throughout the planet. Oscillating Water Column (OWC) wave energy converter is one of the most studied devices that have promising perspectives to be installed commercially. This study aims investigating the influence of chamber sizes and turbine characteristics dimensions of an OWC device located at the southern Brazilian coast is carried out. Numerical simulations for incident waves with period T = 7 and 10 s and height H = 1.5 m, by using the FLUENT® model, based on the finite volume method (VFM) are carried out. Efficiencies for different chamber sizes and Wells turbine characteristic relations (kt) in each incident wave are determined. The highest efficiencies were obtained by a chamber with 5 x 5 m and kt = 530 Pa.s / m³ in the case of an incident wave with T = 7 s (52%), and 30 x 30 m and kt = 15 Pa.s / m³ at T = 10 s (65%).
Keywords
Wave Energy Converter, Oscillating Water Column (OWC), Pneumatic Energy
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