近年來日常生活與各產業之能源使用量皆急遽增加,而其能源種類繁多,使用上大多以高汙染能源為主,造成全球氣候變遷及環境污染。然而台灣地狹人稠,高層建築物多,倘若能將風力發電與建築物充分結合利用,考慮能於都市建築物大範圍架設風力發電,將可發揮台灣地區風力發電潛能,提升台灣地區風力發電之發展與依賴度。 回顧過去研究發現,氣流會沿著建築物屋頂迎風面形成上升氣流,使流體產生分流現象,而建築造型種類繁多,不同造型建築物將影響屋頂氣流強弱,故如何把風有效引導到屋頂為研究主要課題。 本研究以改變屋頂造型,使用流體力學模擬軟體,模擬流場環境變化;再以建築頂部風機高度歸納出流場風速效益,整理建築物屋頂較佳造型和風機組較具效益的擺放位置。最後以風力發電理論公式,針對風機架設高度變化之發電效益,並計算出整體發電效益分析,提供未來設計所需應用組合決策參考。
In recent years, the demand for energy in daily life and industrial has enhanced gradually. Nowadays, there are wide variety of energy which most of them are high-polluting have caused climate change and environmental pollution around the world. However, there are more people and tall buildings in Taiwan, in case of using a combination of wind power and buildings, think to erect of wind power wide range in urban buildings, will be able to exert potential and enhance the development of wind power in Taiwan. According to the past studies, the airflow turn into the updraft along the windward side of the roof of building, cause the fluid generated shunt phenomenon. A wide variety of architectural modeling, the shapes of building may affect the strength of roofs airflow, and therefore how to effectively guide the wind to the roof as the main research topics. This study in order to change the roofs shapes, using fluid mechanics simulation software, the mock flow-environmental changes. Using the wind machine highly in top of the building summed up the effectiveness of the flow field velocity, summarized the better shape of the roof and wind crew more cost-effective placed. Finally, using wind power generation theory, against benefit of the wind machine erection height variation, and calculate the overall power generation benefit analysis in order to be able to provide the required application of the decision-makers in the future reference.
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