2012年12月1日 · The paper concerns the hydrodynamic analysis and optimization of an OWC spar buoy, possibly the simplest concept for a floating oscillating water column (OWC) wave energy converter. It is an axisymmetric device consisting basically of a submerged vertical tail-tube-fixed to an axisymmetric floater that oscillates essentially in heave.

2016年10月1日 · The present paper is focused on the detailed design of two OWC sensor buoys for oceanographic applications, namely the hydrodynamic optimisation of the buoy and the PTO sizing and selection. The performance assessment was carried out considering the wave climate characteristic of the western coast of Portugal.

2016年1月1日 · Oscillating-water-columns (OWCs) are a major class of wave energy converters. Only moving part of OWC is air turbine rotor directly driving electrical generator. OWCs may be bottom-standing, breakwater-integrated and floating. More efficient new-generation air turbines enhance OWC power performance.

The OWC Spar buoy is an axisymmetric device consisting of a submerged vertical tail tube fixed to a floater that moves essentially in a heave direction. The airflow, displaced by the motion of the OWC inner free surface relative to the buoy, drives an …

2017年8月29日 · This work presents a new detailed wave-to-wire model based on a diffraction-radiation hydrodynamic model in a 6 degrees-of-freedom time-domain simulation of the spar-buoy OWC including a non ...

2013年2月25日 · The present paper concerns an oscillating water column (OWC) spar-buoy, possibly the simplest concept for a floating OWC wave energy converter. It is an axisymmetric device (and so insensitive to wave direction) consisting basically of a (relatively long) submerged vertical tail tube open at both ends and fixed to a floater that moves ...

2021年5月27日 · An oscillating water column (OWC) spar buoy, is a type of wave energy converter (WEC) that utilises the relative heave motion between an outer spar hull and an inner moon pool-like water column to drive the air, enclosed in a chamber above the OWC, through a turbine installed at the top of the buoy and connected to the atmosphere.

2020年6月13日 · Backward Bend Duct Buoy (BBDB) type first proposed by Masuda in 1986, is currently the most popular and most researched OWC floating device. A BBDB converter consists of air chamber, air turbine, L-shaped duct, buoyancy chamber, and electrical generator, as shown in Fig. 2 for the OPT buoy.

6 天之前 · A numerical study was carried out to optimise the OWC-breakwater using the addition of multi-chamber OWC and added buoy of attached and detached configuration. The configuration optimisation was conducted to improve the dual-application of energy extraction, as well as energy transmission, of the OWC-breakwater.

Spar-Buoy OWC (Figure 1 (a)) is possibly the simplest and most efficient concept for floating OWCs. It is an axisymmetric device; therefore, it has the advantage of being equally efficient at...