Power Performance Assessment of Vertical-Axis Tidal Turbines Using an Experimental Test Rig

Fernández-Jiménez, Aitor; Álvarez-Álvarez, Eduardo; López, Matı́as; Fouz, Mateo; López, I.; Gharib-Yosry, Ahmed; Claus, R.; Carballo, R.

doi:10.3390/en14206686

Cited by 4 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An accelerator device was studied by Fernandez-Jimenez et al [159] numerically and experimentally. The inlet width was decreased from 0.65 m to 0.39 m, and the blockage was found to greatly improve the power coefficient.…”

Section: Additional Devicesmentioning

confidence: 99%

A Review: Design and Optimization Approaches of the Darrieus Water Turbine

Tan

et al. 2023

Sustainability

View full text Add to dashboard Cite

As the use of Darrieus turbines in water is becoming increasingly popular in the field of renewable energy, it is essential to explore and evaluate existing research efforts. The situation of the Darrieus water turbine in water still requires further discussion. This paper aims to provide a comprehensive review of optimization methods for Darrieus water turbines, addressing the challenges associated with their efficiency, start-up, and stability. This work summarizes and evaluates the findings of previous studies, focusing on the features of experimental and numerical methods. Influence of geometric parameters, including height-diameter ratio, solidity, torsional angle, and airfoil are also talked into. The existing research adopts solidity values ranging from 0.1 to 0.4, but the design experience is not as extensive as that of the Darrieus wind turbine. Further discussions are still needed on the optimal power coefficient and tip speed ratio of the Darrieus water turbine. The research with a power coefficient ranging from about zero to above the Betz limit needs further summarization. Various optimization strategies, such as multi-turbine arrangement, coupling with Savonius turbines, and blade pitching, are also discussed. By offering insights into the current state of optimization works for Darrieus water turbines, this review aims to facilitate future research, bridge existing gaps in the field, further enrich the utilization of ocean currents, and improve the structure of renewable energy.

show abstract

Section: Additional Devicesmentioning

confidence: 99%

A Review: Design and Optimization Approaches of the Darrieus Water Turbine

Tan

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…References [9][10][11] analyzed and predicted wind power fluctuation based on the time series method, which can predict ultra-short-term wind power and has certain practical value. References [12][13][14] analyzed the power characteristics and power quality characteristics of tidal current power generation through measured data, visually reflecting the power generation capacity and quality, there is no essential explanation for power fluctuation.…”

Section: Analysis Of Power Fluctuation Research Statusmentioning

confidence: 99%

Analysis of Power Fluctuation Characteristics of Tidal Current Energy Generation and Selection of Sampling Interval

Zhang,

Wang,

Guo

et al. 2023

Advances in Transdisciplinary Engineering

View full text Add to dashboard Cite

With the continuous maturity of tidal current power generation technology, the scientific requirements for testing and evaluation are also increasing. In the process of analyzing the measured power data of tidal current power generation, the selection of sampling interval has a significant impact on the accuracy of power fluctuation analysis. Choosing an appropriate sampling interval can reduce data processing and improve calculation speed while ensuring the accuracy of test data. Based on the measured power data of tidal current power generation in a certain sea area of China during rising and falling tides, this paper calculated and analyzed the power fluctuation of multiple sampling intervals through discrete index analysis and first-order difference component analysis. And based on the entropy weight method, obtained the regularity of power fluctuation with sampling interval, calculated the comprehensive fluctuation coefficient to determine the maximum sampling interval, and proposed a recommended sampling interval of 60 seconds. This has important practical significance for scientifically testing tidal current power generation.

show abstract