Idealized design parameters of Wave Energy Converters in a range of ocean wave climates

Illesinghe, Suhith; Manasseh, Richard; Dargaville, Roger; Ooi, Andrew

doi:10.1016/j.ijome.2017.03.003

Cited by 21 publications

(11 citation statements)

References 21 publications

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“…Swells is formed when waves propagate over a depth (infinite depth) that is larger than wavelength, shorter wave travel slower than the faster one, and they distribute each other. Swells have wavelength 260m with period 13s and up to maximum about 900m with the period time 24s (Illesinghe et al 2017).…”

Section: Literature Reviewmentioning

confidence: 99%

Small Scale Low Height Wave Energy Seawater Pump for Achieving Environmental and Economic Sustainability

Lee¹,

Feng²,

Lee³

2020

ujme

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This study is about the design and development of seawater pump powered by low height sea wave at near shore region. This study focuses on developing seawater pump that does not use any electricity for delivering high pressure saline water to on shore region which is in line with the global renewable energy quest. Malaysia is blessed with the geographic location of surrounded by sea which enables this technology to be utilized. The challenge in utilizing such technology is due to the nature of the sea wave surrounding Malaysia that is classified as low height sea wave which increase the difficulty in utilizing such technology in neither electricity generation nor sea water delivery. On top of that, there is limited study available in this area especially low wave height. The prototype is designed based on point absorber concept with piston type pump configuration for water delivery. Then the prototype is tested at the Mukah Beach with average recorded wave height of less than 1m. Findings demonstrated that a single prototype pump is capable of delivering maximum pressure head of 10m with maximum flow of 1.2Litre per minute (LPM). For three pumps connected in series, the maximum pressure head can reach up to 25m pressure head with maximum flow rate of 1.5LPM. Similarly, when connected in parallel, the system is capable to deliver up to 14m of pressure head and 3LPM of flow rate. The findings indicate that the prototype is significant for seawater delivering. Although the output of the prototype is small, its potential is yet to be fully unleashed. Therefore, it is highly recommended for future study the prototype to be pair together with more similar pumps in series or parallel configurations to form a system of pumps to create higher flow and higher head for more application. This study concludes that the designed and developed prototype is useful for delivering saline water for various application such as seawater desalination or electricity generation in near shore area or islands.

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Section: Literature Reviewmentioning

confidence: 99%

Small Scale Low Height Wave Energy Seawater Pump for Achieving Environmental and Economic Sustainability

Lee¹,

Feng²,

Lee³

2020

ujme

View full text Add to dashboard Cite

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“…The sea states are mostly random, but studies have proved that they can be quantified over regions and months of the year with ocean climate studies based on either wind observation, or buoy implementation to record the wave data over a long time, such as the WERATLAS program [10] (European Wave Energy Atlas) designated to indicate the available wave energy in the European shores. Researchers were able to derive a mean of the significant wave height and period, hence the power contained within waves, for specific regions around the world during every month of the year [3,[11][12][13]. This variance in the sea state is one of the first challenges for ocean wave energy harvesting.…”

Section: Wave Energy Resourcesmentioning

confidence: 99%

“…From Equation (1), the wave energy resources are quantified as the power per unit length, and according to Barstow,et al [14] the southern hemisphere has higher energy potential, and less seasonal variations during annual averages, which makes places like Australia encouraging for wave energy harvesting. The wave energy resources in Australia have been analysed by Morim, Cartwright, Etemad-Shahidi, Strauss and Hemer [3], and the design parameters for a one-body point absorber specifically designed for the Australian shores were calculated by Illesinghe, Manasseh, Dargaville and Ooi [11]. It was concluded that the southern Australian shorelines have a largest energy potential with peak wave periods ranging between 8-12 s and significant wave heights ranging between 2-4 m, these relatively high wave periods present another challenge for wave energy converters which will be discussed further on.…”

Section: Wave Energy Resourcesmentioning

confidence: 99%

“…The main conclusion was that the generated power was overestimated using the traditional linear boundary element methods. Illesinghe, Manasseh, Dargaville and Ooi [11] studied the PTO damping and stiffness design parameters of a one body point absorber in different climates around the Australian costs, and derived the best parameters for different regions and seasons. Chen, Dolguntseva, Savin, Zhang, Li, Svensson and Leijon [56] conducted a detailed numerical simulation of a point absorber WEC where the Navier-Stokes equations were solved in a fully non-linear ANSYS Fluent CFD simulation.…”

Section: Theoretical Developmentmentioning

confidence: 99%

“…With all terms being the same as described in Section 2.1 except the last two terms on the left hand side of Equations (11) and (12):…”

Section: Dynamicsmentioning

confidence: 99%

See 2 more Smart Citations

Point Absorber Wave Energy Harvesters: A Review of Recent Developments

2018

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Even though ocean waves around the world are known to contain high and dense amounts of energy, wave energy harvesters are still not as mature as other forms of renewable energy harvesting devices, especially when it comes to commercialization, mass production, and grid integration, but with the recent studies and optimizations, the point absorber wave energy harvester might be a potential candidate to stand out as the best solution to harvest energy from highly energetic locations around the world’s oceans. This paper presents an extensive literature review on point absorber wave energy harvesters and covers their recent theoretical and experimental development. The paper focuses on three main parts: One-body point absorbers, two-body point absorbers, and power take-offs. This review showcases the high amount of work being done to push point absorbers towards technological maturity to eventually kick off commercialization and mass production. It should also provide a good background on the recent status of point absorber development for researchers in the field.

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Survey of the mechanisms of power take-off (PTO) devices of wave energy converters

et al. 2020

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Ocean wave energy conversion as one of the renewable clean energy sources is attracting the research interests of many people. This review introduces different types of power take-off (PTO) technology of wave energy converters. The novelty of this paper is to present advantages and disadvantages of the linear direct and indirect drive PTO devices for ocean wave energy conversion. The designs and optimizations of PTO systems of ocean wave energy converters have been studied from reviewing the recently published literature. The novel mechanical designs of the PTO systems have been compared and investigated in order to increase the energy harvesting efficiency.

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Idealized design parameters of Wave Energy Converters in a range of ocean wave climates

Cited by 21 publications

References 21 publications

Small Scale Low Height Wave Energy Seawater Pump for Achieving Environmental and Economic Sustainability

Small Scale Low Height Wave Energy Seawater Pump for Achieving Environmental and Economic Sustainability

Point Absorber Wave Energy Harvesters: A Review of Recent Developments

Survey of the mechanisms of power take-off (PTO) devices of wave energy converters

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