民用建筑围护结构热湿特性及优化设计研究

发布时间：2018-01-03 03:12

  本文关键词：民用建筑围护结构热湿特性及优化设计研究　出处：《南京大学》2013年硕士论文　论文类型：学位论文

  更多相关文章： 建筑围护结构 热湿耦合传递 实验研究 CHAMPS模拟 优化设计

【摘要】：民用建筑的目的是为居民提供一个安全、健康、舒适的室内环境。建筑外围护结构分隔建筑室内外空间并对建筑能耗及维持良好的室内环境有着重要作用。围护结构内的热湿传递对建筑围护结构的热工性能、建筑整体能耗和室内环境有着十分重要的影响。长江中下游地区是我国典型的夏热冬冷区,长期处于潮湿多雨的气候条件下。围护结构内部的湿传递与较大的气温变化相互耦合,是该地区建筑外围护结构内部热质传递过程的一个突出特征,这种热湿耦合传递是影响该地区的建筑围护结构热工性能和建筑能耗及室内空气品质的重要因素。由于围护结构材料多为多孔介质,多孔介质内热湿传递机理的计算分析较为复杂,建筑师们在设计围护结构时通常依赖于经验,因此导致了种种的不合理情况发生。本文通过对建筑外围护结构热湿传递国内外研究的进展,热湿传递对建筑整体性能的影响(其中包括热湿传递对围护结构的热工性能及建能耗的影响,热湿传递对建筑室内空气品质的影响)进行研究。利用南京大学建筑与城市规划学院可持续建筑研究中心人工气候实验室,搭建热湿耦合传递实验测试平台,对四种建筑外围护结构材料的热湿传递进行实验研究,并结合热湿传递模型软件CHAMPS对四种材料热湿传递进行模拟,将实验结果和模拟结果进行对比验证,确定了实验和模拟的准确性,为以后利用该实验平台和CHAMPS软件对其他新型建筑材料的热湿特性研究提供了方便。然后用CHAMPS软件对南京大学某校园建筑的两种不同墙体进行案例模拟研究。通过以上研究来探讨民用建筑围护结构有关材料选择和墙体构造形式的优化设计。
[Abstract]:Civil buildings are designed to provide residents with a safe and healthy environment. Comfortable indoor environment. The outer enclosure separates the indoor and outdoor space of the building and plays an important role in building energy consumption and maintaining a good indoor environment. The heat and moisture transfer in the enclosure structure has great effect on the thermal performance of the building enclosure. The whole building energy consumption and indoor environment have a very important influence. The middle and lower reaches of the Yangtze River is a typical hot summer and cold winter area in China. In the wet and rainy climate for a long time, the coupling between the moisture transfer inside the enclosure structure and the larger temperature change is a prominent feature of the heat and mass transfer process inside the outer envelope structure of the building in this area. This heat and humidity coupling transfer is an important factor that affects the thermal performance, building energy consumption and indoor air quality of the building envelope structure in this area, because the materials of the envelope structure are mostly porous media. The calculation and analysis of heat and moisture transfer mechanism in porous media is more complicated, and architects usually rely on experience in designing envelope structures. As a result, various unreasonable situations have occurred. This paper makes progress in the research of heat and moisture transfer of the outer enclosure structure at home and abroad. The influence of heat and moisture transfer on the overall performance of the building, including the influence of heat and moisture transfer on the thermal performance and building energy consumption of the enclosure structure. The effect of heat and moisture transfer on indoor air quality was studied. The artificial climate laboratory of sustainable building research center of Nanjing University was used to build the experimental test platform of heat and humidity coupling transfer. The heat and moisture transfer of four kinds of building envelope materials were studied experimentally, and the heat and humidity transfer of four materials were simulated with the heat and humidity transfer model software CHAMPS. The accuracy of the experiment and simulation is confirmed by comparing the experimental results with the simulation results. It is convenient to study the thermal and moisture properties of other new building materials by using this experimental platform and CHAMPS software. Then, two different walls of a campus building of Nanjing University are introduced by CHAMPS software. Through the above research, the selection of materials and the optimum design of wall structure are discussed.
【学位授予单位】：南京大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU111.4
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本文编号：1372114