| Summary: | 碩士 === 樹德科技大學 === 建築與室內設計研究所 === 102 === For the present urban high-rise buildings everywhere, resulting in varying degrees of turbulence in the open wind farm, wind field characteristics of this phenomenon not only have an impact on the main structure of the building, building materials and even indoor ventilation. The effect of wind on buildings arising from the interaction of many factors influence. As cities and counties where the buildings, building orientation, building skin, the appearance of the shape, height of the building, as well as special terrain surrounding buildings will affect each other, resulting in turbulence.
The wind loading of high-rise buildings can be divided into alongwind, acrosswind and torsional wind loads. For the alongwind load, it is induced by the mean wind speed pressure and the turbulence characteristics of the approach flow. It is generally accepted that analytical model basing on quasi-steady theorem and strip theory can adequately predict the alongwind loading, and thus it was adopted by many building wind codes. As for the acrosswind and torsional wind loads, they are mainly induced by the wake flow. The mechanisms are complicated and can not be adequately modeled by analytical or semi-empirical models.
In the study,according to result of top floor of high-rise buildings alongwindexperiment.Use small mechanical draft cooling tower for experimental subjects.
Collect alongwind from high-rise buildings that bring nature wind flow to replace forced air flow from radiator fan of cooling tower.Cause backwater in cooling
tower was sprayed through air field flow.Air and water execute heat exchange by evaporation.Reduce water temperatureto replace mechanical fan for energy saving and carbon reduction.
Keyword:high-risebuildings,coolingtower,energy saving and carbon reduction,natural forces of wind farm
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