Experimental Analysis of a Novel Adaptively Counter-Rotating Wave Energy Converter for Powering Drifters

Wu, Guoheng; Lu, Zexin; Luo, Zirong; Shang, Jianzhong; Sun, Chongfei; Zhu, Yiming

doi:10.3390/jmse7060171

Cited by 8 publications

(7 citation statements)

References 38 publications

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“…The blades (5) are fixed between the flywheel (9) and the blade assembly (4) and they form the blade groups. The blade groups are connected to the generator through the spindle (3), and the stabilizer wings are connected to the outside of the generator through the fixed stabilizers (8). As shown in Figure 1b, this PSU can be made in small size, which helps to integrate within the unmanned marine equipment or move with it.…”

Section: Design and Structurementioning

confidence: 99%

“…The WECM absorbs wave energy and converts it into heave motion (mechanical energy) for the PSU's input energy, then the PSU converts its heave motion into rotational motion to generate electricity [8,9], as shown in 0. The PSU converts wave energy into electrical energy through its unique mechanical structure and transmission mechanism.…”

Section: Working Principlementioning

confidence: 99%

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Design and Fluid Analysis of a Novel Power Supply Unit for Unmaned Marine Equipment

Wang

Lu²,

Luo³

et al. 2023

J. Phys.: Conf. Ser.

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The problem of insufficient power supply for unmanned marine equipment at sea limits its development and utilization. In this paper, we designed a power supply unit capable of absorbing wave energy and converting it into electricity, which helps to solve the problem of limited power supply ability. Its main structure is demonstrated by theoretical design and modeling, and its operating principle is presented. Its performance (power coefficient and torque coefficient) was numerically simulated via Computational Fluid Dynamics tools, and the effect of blade groups’ solidity on its operating performance was investigated. The study found that the blades of the blade groups can absorb more energy by arranging along the outer ring, and the energy conversion efficiency of the blade groups is related to their load.

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Section: Design and Structurementioning

confidence: 99%

Section: Working Principlementioning

confidence: 99%

Design and Fluid Analysis of a Novel Power Supply Unit for Unmaned Marine Equipment

Wang

Lu²,

Luo³

et al. 2023

J. Phys.: Conf. Ser.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to verify the working principle of the new WEC and preliminarily test its performance characteristics at the beginning of the study, we conducted a wave tank experiment on the physical prototype of WEC [48]. As shown in Figure 18, the test platform mainly includes a wave generator, a water tank, a control room, a data acquisition card (DAQ card), a test computer and other necessary circuit components.…”

Section: Experiments In Wave Tankmentioning

confidence: 99%

Using Flexible Blades to Improve the Performance of Novel Small-Scale Counter-Rotating Self-Adaptable Wave Energy Converter for Unmanned Marine Equipment

Sun

Shang

Luo

et al. 2019

JMSE

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Unmanned marine equipment has been increasingly developed for open seas. The lack of efficient and reliable power supply is currently one of the bottlenecks restricting the practical application of these devices. In order to provide a viable power supply method for unmanned marine equipment, such as sonic buoys and sea robots, we originally propose a novel small-scale flexible blade wave energy converter (WEC) based on self-adaptable counter-rotating operation mechanism. The flexible blade WEC is designed on the basis of the rigid blade WEC with the caging device. This paper identifies the key factors affecting WEC performance through theoretical analysis. According to the numerical simulation analysis, the output mechanical power of the double-layer absorber is 12.8 W, and the hydraulic efficiency is 36.3%. The results of the verification experiment show that the peak power of WEC is 5.8 W and the average power is 3.2 W. The WEC with 65Mn flexible blade under most experimental conditions has the best performance when the blade thickness is 0.10 mm. The study shows that the new generation WEC can effectively overcome the excessive fluctuation of the output power of the previous generation WEC. The output power curve of the novel WEC is relatively smooth, which is conducive to its smooth operation and subsequent utilization and storage of electrical energy.

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“…The turbine is designed in a design adapted to small speeds. It is shown that the structure of the working wheel and the angle of influence of the blades, its shape and materials are made according to scientifically based conclusions, and it can work effectively with a low-speed generator [11][12][13][14]. "The energy sector is being developed on a large scale in the Republic of Uzbekistan.…”

Section: Introductionmentioning

confidence: 99%

Study on a generator and turbine designed for an efficient wind power plant in low speed wind currents

Toshev,

Tosheva,

Sadullaev

et al. 2023

E3S Web Conf.

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This article presents the advantages of improving and developing new types of turbines and generators designed for the production of electricity from low-speed wind and free-flowing water, at a time when the environment is deteriorating and there is a shortage of electricity. It has been analyzed that low-speed micro-hydroelectric power plants and wind power plants bring great benefits to the environment and economy through their mass use in meeting the needs of the population and businessmen for electricity. For this purpose, the effective structure of low-speed generators, micro-hydroelectric power plants and wind power plants were considered, and the issues of improving them so that they work efficiently at low speeds were considered. Mathematical equations of a low-speed generator designed to obtain electricity from low-speed wind and free-flowing water are presented. At the same time, scientific research was conducted to study, improve, and develop new types of micro-hydroelectric and wind power plants suitable for low-speed generators. As a result of scientific research, an improved wind power device designed for small speed was developed and the results of research were analyzed.

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Experimental Analysis of a Novel Adaptively Counter-Rotating Wave Energy Converter for Powering Drifters

Cited by 8 publications

References 38 publications

Design and Fluid Analysis of a Novel Power Supply Unit for Unmaned Marine Equipment

Design and Fluid Analysis of a Novel Power Supply Unit for Unmaned Marine Equipment

Using Flexible Blades to Improve the Performance of Novel Small-Scale Counter-Rotating Self-Adaptable Wave Energy Converter for Unmanned Marine Equipment

Study on a generator and turbine designed for an efficient wind power plant in low speed wind currents

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