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Wind Energy Utilization on the Roof of the High-rise Building

Author: YangRong
Tutor: PengXingQian
School: Huaqiao University
Course: Structural Engineering
Keywords: high-rise building roof wind speed wind energy numerical simulation
CLC: TK89
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
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Abstract


As the process of urbanization all over the country speeds up gradually,energy consumption is much huger.The traditional energy crisis has appeared,moreover,increasingly extreme whether induced by global environment deterioration is also a wake-up call to human.Identifying new energy which is clean and renewable,conforms to energy conservation and emission reduction.Just with these traits,wind energy is attached importance to many countries.In our country,wind farms are set mainly in remote sparsely populated areas,while the urban population density is high and energy dissipation is great.In order to alleviate this problem considering utilizing the influence of building on wind field,wind turbines are placed in housetop, different measures are adopted that can effectively improve the wind speed to increase available wind power.This method is not like traditional wind concentrators which rely on high requirement of building size and serious waste of resources, not only saves cost greatly, but also lays a foundation for wind power’s popularization.In the thesis, numerical simulation technology and SST k ?ωmodel are used for the following job:We analyze characteristics of wind field upon the roof of buildings, summarize existing research results, get the impact of various factors on flow when there is a single building, or are two buildings.It’s the groundwork for studying how to improve wind speed on the roof.Two protrusions with the same size are setted on both sides of the roof, finding the influences on wind speed and wind power of its existence. In addition, the external size of the protrusions are changed to know the pros and cons for the best way to utilize wind energy.When the shape of building cannot be changed, a horizontal top board is setted over the roof.Its existence makes the wind field change significantly.Then the height of board are adjust to refine the best wind machine installation.Finally,a determinant building complex is analyzed to study the utilization method of wind energy on roof when interference exists. Results show that available wind power is significantly improved after taking above measures.These studies are more universality and practicality,and it can be used as reference for wind power generalization and wind turbine technology development in the future.

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CLC: > Industrial Technology > Energy and Power Engineering > Wind energy, wind machine > Use of wind energy
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