Wind Energy

Gipe, P.

doi:10.1016/b978-1-4832-5695-5.50009-3

Cited by 21 publications

(25 citation statements)

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“…Rather, members of the wind industry, government agencies and the media often attribute community concerns to classic NIMBY self‐interest driven parochialism (Kahn 2000). The most recent edition of the popular book Wind Energy Basics , long‐time wind energy advocate and scholar, Paul Gipe, attributes NIMBY reactions to conventional class politics. He writes that NIMBY “is just another manifestation of trying to pass the social costs of energy choices—as in the Lincoln Navigator or the McMansion—on to other, and often less politically powerful, groups” (2009:156).…”

Section: Public Perceptions and Opposition To Wind Energymentioning

confidence: 99%

Resisting and Reconciling Big Wind: Middle Landscape Politics in the New American West

Phadke

2011

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While critical geographers have addressed how place politics impacts rural landscapes, less attention has been paid to the particular ways in which rural landscape identities are being impacted by the new energy economy. The nascent US wind energy opposition movement is evidence of broad, organized resistance to the landscape impacts associated with the re‐sculpting of rural energy geographies. Drawing from cultural landscape and place theory, this article examines the shifting terrain of wind opposition in the “New American West”. The article argues that wind energy opposition is fundamentally about who speaks for and negotiates conflicting social commitments to technology, economic values and an imagined American pastoral identity. By examining a case study of wind development in Nevada, this article considers how renewable energy development can constructively acknowledge the important role the “middle landscape” continues to play in American constructions of rural space.

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Section: Public Perceptions and Opposition To Wind Energymentioning

confidence: 99%

Resisting and Reconciling Big Wind: Middle Landscape Politics in the New American West

Phadke

2011

Antipode

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“…Wind power density is between 220 and 370 W/m 2 at a site where annual average wind speed is 6.3 m/s (Gipe, 2008). Also, it has low efficiency as compared to the other designs, which is essentially due to the low aerodynamic performance based on the difference between the drag forces on the blades.…”

Section: Introductionmentioning

confidence: 99%

“…According to Betz law, the upper limit of power coefficient is 59.26% for an idealised wind turbine. Wind power density is between 220 and 370 W/m 2 at a site where annual average wind speed is 6.3 m/s (Gipe, 2008). In view of this background, the present work focuses on an effort to increase the efficiency of drag-based VAWT.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of vertical axis wind turbine: CFD simulations and experimental measurements

Ghatage

Joshi

2011

Can J Chem Eng

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A system for the conversion of kinetic energy of wind into thermal energy has been developed which can replace relatively expensive electromechanical equipment. The system consists of a vertical axis wind turbine (VAWT) which is coupled with the shaft of a stirred vessel. In the present work, computational fluid dynamic (CFD) simulations have been performed for the flow generated in a stirred tank with disc turbine (DT). The predicted values of the mean axial, radial and tangential velocities along with the turbulent kinetic energy have been compared with those measured by laser Doppler anemometry (LDA). Good agreement was found between the CFD simulations and experimental results. Such a validated model was employed for the optimisation of drag-based VAWT. An attempt has been made to increase the efficiency of turbine by optimising the shape and the number of blades. For this purpose, the combination of CFD and experiments has been used. The flows generated in a stirred tank and that generated by a wind turbine were simulated using commercial CFD software Fluent 6.2. A comparison has been made between the different configurations of wind turbines. Results show that a provision in blade twist enhances the efficiency of wind turbine. Also, a wind turbine with two blades has higher efficiency than the turbine with three blades. Based on the detailed CFD simulations, it is proposed that two bladed turbine with 30 • twist shows maximum efficiency.

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“…或微型风力发电系统(功率小于 2.5 kW 或风轮直径小于 1.25 m [1] )直接安装于建筑物顶面，即所谓的屋顶风力机，已成为了最具潜力的城市可持续能源发展措施之一 [2][3] 。但由于城市环境内建筑物顶面风场具有低风速、强湍流的特征 [4][5] ，若屋顶风力机的安装位置和高度不恰当，在来流风速很大的情况下，机械工程学报第 54 卷第 2 期期 192 也会出现零输出功或损坏的情况 [6][7][8] …”

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Influence of Roof Shape on Micrositing of Rooftop Wind Turbine in the Building Group

Hou¹

2018

JME

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Abstract：The purpose is to explore the flow pattern, wind velocity and turbulence intensity over the aligned arrays buildings with flat roof, gabled roof, pyramidal roof, and pitch roof, respectively. The suitable wind profile based on urban rough atmospheric boundary layer is applied in the inflow condition and Realizable k-ε turbulence model is utilized in the simulations. Results from this investigation shown that the flat roof is the best for installation of the wind turbine, then the pyramidal roof is the secondary, and the pitch and gabled roof are the worst. Meanwhile, the installation height must be higher than 1.1 times of these four rooftop. For the non-flap buildings, it is not suitable to install the wind turbine at the height lower than the top of the building, while the eaves of the rooftop are the best installation locations. Moreover, for the height is higher than 1.2H, the wind turbine should be installed at the front row of the building group, where the wind turbine exposes to the wind flow without high turbulence intensity, and the capability of wind flow recovery varies with the different roof shape. For the height is higher than 1.5H, the influence of the roof shape can be ignored, and the wind turbine can be installed at the arbitrary locations at the rooftop in the building group. Key words：roof shape；rooftop wind turbine；turbulence intensity；wind acceleration factor；micrositing 0 前言 *

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Wind Energy

Cited by 21 publications

References 0 publications

Resisting and Reconciling Big Wind: Middle Landscape Politics in the New American West

Resisting and Reconciling Big Wind: Middle Landscape Politics in the New American West

Optimisation of vertical axis wind turbine: CFD simulations and experimental measurements

Influence of Roof Shape on Micrositing of Rooftop Wind Turbine in the Building Group

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