Numerical Analysis of Velocity Magnitude on Wave Energy Converter System in Perforated Breakwater

Setyandito, Oki; Nizam, Nizam; Pierre, Andrew John; Suputra, Gede Dharma; Wijayanti, Yureana; Anda, M.

doi:10.14710/ijred.2022.38535

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…The result of this experiment shows that solar PV systems hybrid with WEC produce electricity higher than a hybrid with wind turbines. Setyandito et al 83) conducted a laboratory experiment of overtopping WEC, where this device was intended to be attached to the breakwater structure. However, this study is still preliminary and should continue to determine the PTO system that is suitable for this type of WEC.…”

Section: Discussionmentioning

confidence: 99%

A Mini Review: Wave Energy Converters Technology, Potential Applications and Current Research in Indonesia

Muhammad Alfan Santoso,

Wijayanti,

Ridwan Budi Prasetyo

et al. 2023

Evergreen

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Wave energy is a promising renewable resource and is increasingly in demand in most countries, including Indonesia. The potential for the use of wave energy is quite large in Indonesia, especially in areas with coastlines that are directly exposed to open ocean waters. The use of this wave energy has the potential to be integrated with breakwater buildings in several locations as an alternative that can be considered. This is a significant solution, especially in areas where the implementation of network connections is not possible. However, wave energy technology among other renewable technologies is still considered in ongoing development. Another obstacle is the challenge of energy transfer where there is a requirement for a steady and uninterrupted energy supply, while the voltage generated from the surge can vary continuously. Therefore, this paper shows a general overview of wave energy converter (WEC) technology and power conversion. A solid perception concerning them is outlined. Furthermore, this paper describes research and projects for energy conversion and wave power as well as alternatives to WEC technology and suitable locations in Indonesia.

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Section: Discussionmentioning

confidence: 99%

A Mini Review: Wave Energy Converters Technology, Potential Applications and Current Research in Indonesia

Muhammad Alfan Santoso,

Wijayanti,

Ridwan Budi Prasetyo

et al. 2023

Evergreen

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“…The combination of rainwater harvesting from the roof and recharge well can be applied as an NBSs solution not only to mitigate urban flooding but also to recharge the groundwater [21). The recharge well has been widely used in Indonesia [22,23,24], its design specification is based on Indonesian National Standard Regulation No. 03 2453 on the procedure planning technique of rainwater recharge well [25] as shown in Figure 4.…”

Section: Nbss Approach Using Rainwater Harvesting and Recharge Wellmentioning

confidence: 99%

Analysis of flooding and nature-based solutions in the improvement of urban drainage system

Wijayanti,

Julianto,

Cahyono

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This paper studies the drainage system performance of a conventional system with concrete channels and a retention pond. Also, the analysis of runoff reduction by implementing a nature-based solutions (NBSs) technique of rainwater harvesting and recharge well. The case study site is located in an industrial area in West Karawang City, West Java. The analysis was carried out by simulating the flood event using rainfall data from the site for a 10-year return period. The flood simulation was performed using the Storm Water Management Model (SWMM). The model consists of the analysis of flooding events in the drainage system and retention pond and the analysis of flooding prevention scenarios. The result reveals that the cause of the flooding is an extreme rainfall event which leads to the large accumulation of water at one junction point. Moreover, although the capacity of the retention pond is sufficient, the discharge rate is way larger than the infiltration rate, so the overflow occurred and resulted in flooding. The scenario of widening the drainage channel and installing a pump in the retention pond provides a good solution scenario to prevent flooding. The implementation of rainwater harvesting and recharge well could reduce the surface runoff volume of 21%. Further study should be conducted to analyze the combination of conventional and NBSs drainage system performance under the highest daily rainfall of the series.

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Design and Optimization of a Rack and Pinion Type WEC Using an Auxiliary Vibrating System

Chand

Nasrekani

Mamun

et al. 2023

Int. J. Renew. Energy Dev.

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Research on wave energy converters with Rack and pinion type Power Take-Off (PTO) has been increasing over the last few years. A few control methods are used to optimize the performance of the said Wave Energy Converters (WECs). This paper presents a novel auxiliary vibrating system that can be implemented to improve the power input to a wave energy converter with a rack and pinion type PTO in regular waves. The design of the WEC system includes a floater, a double rack and pinion arrangement, a vibrating system, and a Mechanical Motion Rectifier (MMR) consisting of two one-way bearings that can convert the bidirectional wave motion to a unidirectional rotation of the output shaft. Once the waves move the floater upwards, this compresses the vibrating system which absorbs some of the energy and then the vibrating system helps the floater return to its original position by releasing the stored energy. The vibrating system also serves as a control method for limiting rack movement, so the impact of the waves is not detrimental to the system. This article aims to approximate the optimized power input to the system and investigate whether the implementation of a novel vibrating system improves the system power input. Allowing the WEC’s natural frequency to reach the wave’s natural frequency is important as it allows for maximum power absorption. The use of vibration systems to tune the WEC’s natural frequency close to the waves’ is novel and serves as the main factor in choosing this research. The WEC was modeled as 2 spring mass damper systems. Then the characteristic equations of the systems were extracted from the equations of motion and solved analytically to obtain the responses. One-factor-at-a-time (OFAT) method together with two different algorithms (Genetic and Multi-Start algorithms) from MATLAB code were used to optimize the response. The optimized power input to the system was then approximated. For system one, the maximum amplitude of the response was seen at a system mass of 500 kg and stiffness in the range of 100<k<240 N/m. The same was achieved for system two at a system mass of 500 kg and stiffness in the range of 100<k<138. The effect of the stiffness and mass on the response and input power has also been discussed.

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Numerical Analysis of Velocity Magnitude on Wave Energy Converter System in Perforated Breakwater

Cited by 3 publications

References 25 publications

A Mini Review: Wave Energy Converters Technology, Potential Applications and Current Research in Indonesia

A Mini Review: Wave Energy Converters Technology, Potential Applications and Current Research in Indonesia

Analysis of flooding and nature-based solutions in the improvement of urban drainage system

Design and Optimization of a Rack and Pinion Type WEC Using an Auxiliary Vibrating System

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