Numerical Comparison of Two Runners for Gravitational Vortex Turbine

Q2 Engineering

Engineering Transactions Pub Date : 2021-01-26 DOI:10.24423/ENGTRANS.1165.20210126

Alejandro Ruiz Sánchez, Angie Judith Guevara Muñoz, J. S. Río, José A. Montoya

引用次数: 2

Abstract

The main purpose of this study is to compare numerically the torque generated by two runners for a gravitational vortex turbine. One of the runners was an H-Darrieus turbine with the rotational flow into the chamber that helped to decrease its negative torque. The other runner was a standard (straight blade) turbine, which determined the performance in both cases. The study was conducted in ANSYSrCFX, where the model was configured at constant operating conditions in both cases. The standard runner performance was higher (75%) than that of the H-Darrieus runner. The highest torque for the standard and the H-Darrieus runners was 0.76 and 0.16 N·m, respectively. The standard runner had a larger fluid contact area than the H-Darrieus runner, which extracted more energy.

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重力式旋涡涡轮机两种转轮的数值比较

本研究的主要目的是对重力涡流涡轮机的两个转轮产生的扭矩进行数值比较。其中一个转轮是一台H-Darrieus涡轮机，其旋转流进入腔室，有助于降低其负扭矩。另一个转轮是标准（直叶片）涡轮机，它决定了这两种情况下的性能。这项研究是在ANSYSrCFX中进行的，在这两种情况下，模型都是在恒定的操作条件下配置的。标准跑者的成绩比H-Darrieus跑者高（75%）。标准和H-Darrieus转轮的最高扭矩分别为0.76和0.16 N·m。标准转轮的流体接触面积比H-Darrieus转轮大，后者提取了更多的能量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Engineering Transactions Engineering-Engineering (all)

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Engineering Transactions (formerly Rozprawy Inżynierskie) is a refereed international journal founded in 1952. The journal promotes research and practice in engineering science and provides a forum for interdisciplinary publications combining mechanics with: Material science, Mechatronics, Biomechanics and Biotechnologies, Environmental science, Photonics, Information technologies, Other engineering applications. The journal publishes original papers covering a broad area of research activities including: experimental and hybrid techniques, analytical and numerical approaches. Review articles and special issues are also welcome. Following long tradition, all articles are peer reviewed and our expert referees ensure that the papers accepted for publication comply with high scientific standards. Engineering Transactions is a quarterly journal intended to be interesting and useful for the researchers and practitioners in academic and industrial communities.