Numerical Investigation of Dual-OWC-Devices System Composed by Offshore and Onshore Unit

Wang, Chen; Deng, Zhengzhi; Wang, Pinjie

doi:10.1007/978-981-15-0291-0_16

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…The maximum dimension of the single chamber is a = 20 m and b = 3 m, which implies a maximum airflow speed of 65 ± 4.22 m/s, an average power of 26.55 ± 2.45 kW, a daily generated power of 557.55 ± 6.53 kWh/day, and a power generated annually of 167. 26 3732.58 kWh/year (3.73 MWh/year), respectively. Furthermore, the theoretical and numerical results show an error margin regarding the power generated for each month of e ≈ 6% and a cumulative annual error of ∑ = 68.1%.…”

Section: Performance Of the Owc System Based On The Stochastic Information Of Irregular Wave Interactionsmentioning

confidence: 99%

Simulation and Characteristics Analysis of On-Shore OWC System Proposal as Distributed Generation Resource Considering the Irregular Wave Interaction

López-Leyva¹,

Barrera-Silva²,

Sarmiento-Leyva³

et al. 2021

Electronics

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This article presents the simulation and characterization of an on-shore oscillating water column (OWC) system as part of a distributed generation network considering the irregular interaction of sea waves. The main issue is the adequate calculation of the power generated considering the real variations of the sea waves, employing the stochastic analysis of the wave height and period. The characterization of the wave height was carried out using the Fisher-Tippett Type 1 function, and for the wave period, an empirical probability density function to obtain the instantaneous and accumulated power in an annual period. A basic on-shore OWC system was proposed with different physical dimensions. The theoretical and numerical results present a very similar performance for both turbines (600 W and 25 kW) analyzed. Regarding the 600 W turbine, the resulting accuracy is ≈94.5%, which implies that the annual generated power is 3.13 ± 1.02 MWh/year and the overall efficiency is 23.51% ± 1.9%. However, due to the reduced power generated, the chamber dimensions were modified, achieving 160.61 ± 9.99 MWh/year with an accuracy of ≈93.2%, based on an installed power capacity proposal using a 25 kW turbine. Also, the average overall efficiency for both turbines considering the irregular wave interaction is ≈23.5% and ≈21.1% for 600 W and 25 kW turbines, respectively.

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Section: Performance Of the Owc System Based On The Stochastic Information Of Irregular Wave Interactionsmentioning

confidence: 99%

Simulation and Characteristics Analysis of On-Shore OWC System Proposal as Distributed Generation Resource Considering the Irregular Wave Interaction

López-Leyva¹,

Barrera-Silva²,

Sarmiento-Leyva³

et al. 2021

Electronics

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show abstract

“…In addition, multi-chamber OWCs are anticipated to be constructed to fully harness the local wave power and produce large quantities of energy [70,71]. A hypothesis was developed by [72] to estimate the efficacy of multiple OWCs in a given depth reflecting wall.…”

Section: Hydrodynamics Of Owcmentioning

confidence: 99%

Wave Energy Conversion through Oscillating Water Columns: A Review

Gayathri,

Chang,

Tsai

et al. 2024

JMSE

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An oscillating water column (OWC) is designed for the extraction and conversion of wave energy into usable electrical power, rather than being a standalone renewable energy source. This review paper presents a comprehensive analysis of the mathematical modeling approaches employed in OWC systems, aiming to provide an in-depth understanding of the underlying principles and challenges associated with this innovative technology. A prominent classification within the realm of wave energy devices comprises OWC systems, which exhibit either fixed or floating configurations. OWC devices constitute a significant proportion of the wave energy converter prototypes currently operational offshore. Within an OWC system, a hollow structure, either permanently fixed or floating, extends below the water’s surface, creating an enclosed chamber where air is captured over the submerged inner free surface. This comprehensive study offers a thorough assessment of OWC technology in conjunction with air turbines. Additionally, the investigation delves into theoretical, computational, and experimental modeling techniques employed for analyzing OWC converters. Moreover, this review scrutinizes theoretical, computational, and experimental modeling methodologies, providing a holistic understanding of OWC converters. Ultimately, this work contributes a thorough assessment of OWC technology’s current state, accentuating its potential for efficient wave energy extraction and suggesting future research avenues.

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Numerical Investigation of Dual-OWC-Devices System Composed by Offshore and Onshore Unit

Cited by 2 publications

References 17 publications

Simulation and Characteristics Analysis of On-Shore OWC System Proposal as Distributed Generation Resource Considering the Irregular Wave Interaction

Simulation and Characteristics Analysis of On-Shore OWC System Proposal as Distributed Generation Resource Considering the Irregular Wave Interaction

Wave Energy Conversion through Oscillating Water Columns: A Review

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