This paper utilizes ANSYS-AQWA hydrodynamic simulation analysis software (2022 R2) to investigate the wave dissipation performance of an Oscillating Water Column (OWC) perforated floating breakwater under irregular conditions. The study examines effect spacing, width OWC opening, water depth, incident angle, and significant height on breakwater. results indicate that OWC-perforated surpasses si...

In this thesis extensions and modifications of Åström-Hägglund autotuning are investigated. A method where relay autotuning is extended to multi-input-multi-output control systems is suggested. The method is based on identification of n×n simple two-parameter transfer functions through n identification experiments. The method is experimentally tested on a water-mixer and a pilot-plant distillat...

Wells turbine is a self-rectifying air turbine which is widely used in oscillating water column energy converter. The Wells turbine will always rotate in the same direction irrespective of the direction of the oscillating airflow. Furthermore the Wells turbine has a simple configuration and structure. This is why the Wells turbine is very commonly used for conversion of wave energy. At present ...

Power fluctuations generated by most oscillating wave energy converters without significant amounts of energy storage may have a negative impact on the power quality of the local grid to which they are connected. Assessing this impact on the local network of a potential test site is hence an important step in the selection process of a suitable deployment location. However, site-specific grid i...

In this study, numerical analysis and experiments were performed to analyze the viscous damping effect according shape of chamber skirt breakwater-linked inclined oscillating water column wave energy converter. Experiments conducted using a two-dimensional mini tank verified by comparing results computational fluid dynamics analysis. Pointed rounded skirts modeled compare when incident waves en...