空调排热对建筑空调能耗影响的研究

发布时间：2018-01-16 03:28

本文关键词：空调排热对建筑空调能耗影响的研究　出处：《华中科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：近年来随着城市化的大规模推进，城市中心区因其建筑密度大，风速低，热岛效应愈加明显。尤其在夏季，中心区内空调排热巨大，但散热不佳，导致气温升高，微气候条件更加恶劣，进而影响到中心区内建筑的空调能耗，造成恶性循环。然近年来针对建筑空调的研究主要集中在单纯的室内空调能耗分析或空调排热对室外热环境的影响，尚未将空调排热导致周边热环境的变化及对建筑空调能耗的影响联系起来进行研究。本文采用对流辐射耦合模拟方法和空调能耗计算方法针对当前公共建筑中较为流行的中央空调的排热方式和排热口设置位置的差异对建筑空调能耗的影响开展研究，，同时探讨了分体式空调设置于立面不同位置时对建筑空调能耗的影响。本研究从街区热环境、建筑周边热环境、建筑相邻空气层热环境三个层面进行分析，并提出根据建筑相邻空气层平均气温的变化得到空调能耗的变化量，总结趋势，得到一般规律。并根据研究结论提出了建筑设计中空调排热形式和排热口设置位置的设计原则。研究结果表明：空调使用不同的排热方式以及排热口设置在建筑不同的位置对建筑自身的空调能耗有很大影响。
[Abstract]:In recent years, with the large-scale development of urbanization, the heat island effect is becoming more and more obvious in the central district because of its high building density, low wind speed, especially in summer, the air conditioning in the central area is huge, but the heat dissipation is not good. As a result, the temperature rises and the microclimate conditions become worse, which in turn affects the energy consumption of air conditioning in the central area. However, in recent years, the research on building air conditioning is mainly focused on the analysis of energy consumption of indoor air conditioning or the effect of air conditioning exhaust on the outdoor thermal environment. The influence of exhaust heat on the energy consumption of building air conditioning has not been studied. In this paper, the convection radiation coupling simulation method and the air conditioning energy consumption calculation method are used to analyze the influence of the difference of the central air conditioning exhaust mode and the location of the exhaust outlet on the building air conditioning energy consumption. Research. At the same time, the paper discusses the influence of separate air conditioning on building air conditioning energy consumption when it is located in different positions of elevation. This study is analyzed from three aspects: block thermal environment, building surrounding thermal environment, building adjacent air layer thermal environment. According to the change of the average air temperature in the adjacent air layer of the building, the change of the energy consumption of the air conditioning system is put forward, and the trend is summarized. According to the conclusion of the research, the design principles of the air conditioning exhaust heat form and the location of the outlet in the architectural design are put forward. The results show that the air conditioning energy consumption is greatly affected by the different ways of exhaust air conditioning and the location of the exhaust outlet in the building.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU831

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