Backward bent-duct buoy or frontward bent-duct buoy? Review, assessment and optimisation

Portillo, J.C.C.; Reis, P.F.; Henriques, J.C.C.; Gato, L.M.C.; Falcão, A.F.O.

doi:10.1016/j.rser.2019.05.026

Cited by 20 publications

(3 citation statements)

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“…Current R&D activities mainly focus on wave resource assessment, WEC concept developing, hydrodynamic modelling, PTO innovation and control design. As shown in Figure 1(a), the topics in the inner ring are well studied, and plenty of reviews have summarised the state-of-the-art of wave resource assessment [16,[29][30][31], WEC technology [11,[32][33][34][35][36][37][38], modelling [38][39][40][41][42][43][44][45][46][47], PTO [11,36,[48][49][50], and control [51][52][53][54][55]. The R&D topics in the middle and outer rings in Figure 1(a) are not fully understood yet.…”

Section: Introductionmentioning

confidence: 99%

A review of wave energy technology from a research and commercial perspective

Guo

Ringwood

2021

IET Renewable Power Gen

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Although wave energy prototypes have been proposed for more than 100 years, they have still not reached full commercialisation. The reasons for this are varied, but include the diversity of device operating principles, the variety of onshore/nearshore/offshore deployment possibilities, the diversity of the wave climate at various potential wave energy sites, and the consequent lack of convergence in technology and consensus. This distributed effort has, in turn, lead to a slow rate of progression up the learning curve, with a significant number of wave energy company liquidations and technical setbacks dampening investor confidence. Although a number of reviews on wave energy technology are already in the published literature, such a dynamic environment merits an up‐to‐date analysis and this review examines the wave energy landscape from a technological, research and commercial perspective.

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Section: Introductionmentioning

confidence: 99%

A review of wave energy technology from a research and commercial perspective

Guo

Ringwood

2021

IET Renewable Power Gen

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“…The system, called Backward Bent-Duct Buoy (BBDB), is composed of a floating buoy, anchored to the seabed and equipped with an L-profiled chamber [59]. This one is open in the back to the sea, under the water level while in the upper part to the atmosphere, through a Wells turbine, as shown in Figure 16 [32,60]. Some years later, other similar systems were developed.…”

Section: Oscillating Water Columnmentioning

confidence: 99%

Sea Wave Energy. A Review of the Current Technologies and Perspectives

2021

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The proposal of new technologies capable of producing electrical energy from renewable sources has driven research into seas and oceans. Research finds this field very promising in the future of renewable energies, especially in areas where there are specific climatic and morphological characteristics to exploit large amounts of energy from the sea. In general, this kind of energy is referred to as six energy resources: waves, tidal range, tidal current, ocean current, ocean thermal energy conversion, and saline gradient. This review has the aim to list several wave-energy converter power plants and to analyze their years of operation. In this way, a focus is created to understand how many wave-energy converter plants work on average and whether it is indeed an established technology.

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“…Molina et al [12] investigated the air turbine characteristics of a separate OWC on which the aerodynamic power depends. Portillo et al [13] implemented a numerical linear turbine of the bent-duct OWC based on linear wave theory in the frequency domain and conducted a parametric sensitivity analysis in both backward and frontward configurations. The results illustrated that the frontward configurations presented a better performance under the tested conditions.…”

Section: Introductionmentioning

confidence: 99%