Abstract Lower efficiencies induce higher energy costs and pose a barrier to wave devices’ commercial applications. Therefore, the efficiency enhancement of converters has received much attention in recent decades. The reported research presents double snap-through mechanism applied hemispheric point absorber type converter (WEC) improve absorption performance. comprises four oblique springs mo...

There are more than thousands of concepts for harvesting wave energy, and energy converters (WECs) diverse in operating principles, design geometries deployment manners, leading to misconvergence WEC technologies. Among numerous devices, the point absorber converter (PAWEC) concept is one simplest, most broad-based promising that has been investigated intensively all over world. However, there ...

A free-floating wave energy converter (WEC) concept whose power take-off (PTO) system reacts against water inertia is investigated herein. The main focus is the impact of inclining the PTO direction on the system performance. The study is based on a numerical model whose formulation is first derived in detail. Hydrodynamics coefficients are obtained using the linear boundary element method pack...

Since intermittent and highly variable power supply is undesirable, quantifying yield fluctuations of wave energy converters (WECs) aids with assessment potential deployment sites. This paper presents analysis 3-hourly, monthly, seasonal, inter-annual variability output the M4 WEC. We compare expected performance from at two hotspots: off Albany on south-western coast Australia European Marine ...

Wave power is a potential technology for generating sustainable renewable energy. Several types of wave energy converters (WECs) have been proposed this purpose. WECs operate in harsh maritime environment that sets strict limitations on how and when the device can be economically safely reached maintenance. Thus, to ensure profitable generation over system life cycle, reliability key aspect con...

This work presents a modular floating structure, which consists of five inner tension-leg platforms and two outermost wave energy converters (denoted as MTLPW). The hydrodynamic interaction effect the mechanical coupling between (TLP) (WEC) are taken into consideration. effects connection modes power take-off (PTO) parameters WECs on performance MTLPW system investigated under both operational ...

The paper presents an investigation of fix-referenced and self-referenced wave energy converters and a comparison of their corresponding wave energy conversion capacities from real seas. For conducting the comparisons, two popular wave energy converters, point absorber and oscillating water column, and their power conversion capacities in the fixed-referenced and self-referenced forms have been...

In this article, a range of problems and theories will be introduced that will build towards a new wave energy converter (WEC) concept, with the acronym 'ROTA' standing for resonant over-topping absorber. First, classical results for wave power absorption for WECs constrained to operate in a single degree of freedom will be reviewed and the role of resonance in their operation highlighted. Emph...

The design of a mooring system for a floating structure is a significant challenge the choice of line structure and layout determine highly nonlinear hydrodynamic behaviors that, in turn, influence the dynamics of the whole system. The difficulty is particularly acute for Self-Reacting Point Absorber Wave Energy Converters (SRPA WEC) as these machines rely on their movements to extract useful p...

Refined numerical wave energy resource assessments are required to reduce uncertainties in the evaluation of available power and production. However, restrict computational cost, a great part hindcast simulations cover limited time range (below ten years) or rely on coarse spatial resolutions while routinely ignoring tide-induced modulations conditions. Complementing conducted North-West Europe...