Aerodynamic performance of a dual turbine concept characterized by a relatively close distance between rotors

Author:

Mendoza Victor12ORCID,Katsidoniotaki Eirini23ORCID,Florentiades Markos1,Dot Fraga Jorge1,Dyachuk Eduard1

Affiliation:

1. Hexicon AB Stockholm Sweden

2. Division of Electricity Uppsala University Uppsala Sweden

3. Centre of Natural Hazards and Disaster Science (CNDS) Uppsala Sweden

Abstract

AbstractIn this work, a closely spaced dual turbine concept is studied. The distance between the two side‐by‐side hubs is 1.05 , where is the rotor diameter. This configuration has a potential benefit for offshore wind developments in which power density can be maximized. The main goal is to evaluate the overall aerodynamic performance, blade loads, and wake structure of a reference wind turbine generator operating within this dual turbine configuration and to compare the effects against those for the typical single turbine configuration. For this purpose, an actuator line model has been employed together with the large eddy simulation approach for predicting the turbulence effects. This model was implemented by using the open‐source computational fluid dynamics toolbox OpenFOAM. Results show a better performance for the dual turbine concept. Under same operating conditions, the aerodynamic power of each turbine within the dual concept is higher than the power of the stand alone turbine, particularly at lower operating wind speeds (approximately 2% to 3% of extra power per turbine). Comparison between the two configurations shows similar character of the tangential and normal forces acting on the blades in terms of magnitude and fluctuation, eliminating potential concerns regarding fatigue and blade design. The largest difference in the tangential and normal root bending moments are approximately 3% and 2%, respectively, between single and dual turbine configurations. Finally, wake recovery analysis shows a downwind velocity deficit that is not enhanced streamwise in the dual turbine configuration with no considerable difference after 7 .

Funder

Vetenskapsrådet

Publisher

Wiley

Subject

Renewable Energy, Sustainability and the Environment

Reference28 articles.

1. PaulsenUS PedersenTF MadsenHA et al.Deepwind—an innovative wind turbine concept for offshore. In: European Wind Energy Association (EWEA);2011.

2. BeiterPC TianT NunemakerJ et al.2017 offshore wind technologies market update National Renewable Energy Lab.(NREL) Golden CO (United States);2018.

3. Improving farm efficiency of interacting vertical‐axis wind turbines through wake deflection using pitched struts

4. Power curve and wake analyses of the Vestas multi-rotor demonstrator

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3