垂直轴风力机气动性能分析综述

IF 4 4区 环境科学与生态学 Q2 ENVIRONMENTAL STUDIES
Muhammad Ahmad, A. Shahzad, M. Nafees, Mumtaz Qadri
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引用次数: 1

摘要

在这篇文章中,试图强调在过去的几十年里垂直轴风力涡轮机(VAWTs)的主要发展。对翼型、叶片数、坚固度、展弦比、叶片螺旋度和重叠比等设计参数的影响进行了严格分析。风能是最有前途的可再生能源,具有成本效益,效率高,并且可用于家庭和商业应用。水平轴风力发电机发展迅速,在大中型电力项目中得到广泛应用。VAWT被认为是城市和半城市地区的可行选择。这些涡轮机有几个特点,如全向,在弱和不稳定的风发电,美观,安全,低噪音。具有固定叶片型的Darrieus涡轮机在低风速下有启动问题。Savonius水轮机具有良好的起动能力;然而,它们的功率系数低于其他类型的VAWT。为了克服传统风力发电机的缺点,在混合动力VAWT的设计中寻求一种创新的工程解决方案。分析表明,混合风力涡轮机在一定程度上解决了这些缺陷;然而,整体性能仍然不如传统的风力涡轮机。从未来研究和可接受性的角度出发,根据最新资料提出了若干建议。结论是,在城市地区应用风力涡轮机的机会很大;然而,在低风速自启动、效率、结构可靠性、气动性能设计改进、风资源评价等关键方面,还需要进一步的学术研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An overview of aerodynamic performance analysis of vertical axis wind turbines
In this paper, an attempt has been made to highlight major developments of vertical axis wind turbines (VAWTs) in the last few decades. The effects of various design parameters such as airfoil, number of blades, solidity, aspect ratio, blade helicity, and overlap ratio have been critically analyzed. Wind energy is the most promising renewable, cost-effective, efficient, and accessible source for both domestic and commercial applications. Horizontal axis wind turbines are highly developed and are being used for medium-to-large scale power projects. VAWT are considered viable options for urban and semi-urban areas. These turbines have several characteristics, such as omnidirectional, power generation in weak and unstable winds, esthetically sound, safety, and low noise. Darrieus turbines with a fixed blade-type have starting problems at low wind speeds. Savonius turbines have good starting capability; however, their power coefficients are lower than other types of VAWT. To overcome the shortcomings of conventional wind turbines, an innovative engineering solution was sought in the design of hybrid VAWT. The analysis revealed that hybrid wind turbines have addressed the deficiencies to an extent; however, the overall performance is still less than that of conventional wind turbines. Several recommendations have been made based on state-of-the-art information from the perspective of future studies and acceptability. It was concluded that vast opportunities for wind turbine applications are available in urban areas; however, further academic research is required on critical aspects such as self-starting at low wind speeds, efficiency, structural reliability, design improvement for aerodynamic performance, and wind resource assessment.
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来源期刊
Energy & Environment
Energy & Environment ENVIRONMENTAL STUDIES-
CiteScore
7.60
自引率
7.10%
发文量
157
期刊介绍: Energy & Environment is an interdisciplinary journal inviting energy policy analysts, natural scientists and engineers, as well as lawyers and economists to contribute to mutual understanding and learning, believing that better communication between experts will enhance the quality of policy, advance social well-being and help to reduce conflict. The journal encourages dialogue between the social sciences as energy demand and supply are observed and analysed with reference to politics of policy-making and implementation. The rapidly evolving social and environmental impacts of energy supply, transport, production and use at all levels require contribution from many disciplines if policy is to be effective. In particular E & E invite contributions from the study of policy delivery, ultimately more important than policy formation. The geopolitics of energy are also important, as are the impacts of environmental regulations and advancing technologies on national and local politics, and even global energy politics. Energy & Environment is a forum for constructive, professional information sharing, as well as debate across disciplines and professions, including the financial sector. Mathematical articles are outside the scope of Energy & Environment. The broader policy implications of submitted research should be addressed and environmental implications, not just emission quantities, be discussed with reference to scientific assumptions. This applies especially to technical papers based on arguments suggested by other disciplines, funding bodies or directly by policy-makers.
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