寒冷地区既有采暖工业建筑改造研究

发布时间：2018-06-21 02:36

本文选题：寒冷地区 + 既有采暖工业建筑　；参考：《西安建筑科技大学》2015年硕士论文

【摘要】：随着我国经济的不断发展和人民生活水平的提高,建筑行业随之发展迅速,建筑能耗不断增长,这已经成为制约我国经济发展的重要因素之一。而在既有建筑中,工业建筑单位面积能耗远高于居住建筑,工业建筑的能耗在总建筑能耗中占相当大的比重。寒冷地区,建筑能耗以采暖能耗为主,而寒冷地区的建筑能耗的很大一部分是通过外围护结构损失掉的。寒冷地区建筑围护结构的节能设计关系到整个建筑的节能效益,对其进行节能改造,节能潜力非常显著。因此,研究寒冷地区既有采暖工业建筑的节能改造措施意义重大。首先,本文通过文献阅读、现场调研等方法,总结了寒冷地区工业建筑的发展历史和围护结构的现状及存在的问题。通过测试西安某一典型既有采暖工业建筑,分析其围护结构的现状,得出该工业建筑围护结构的保温性能较差,建筑能耗非常大,计算了该工业建筑各围护结构耗热量占总建筑能耗的比重,其中屋面的耗热量占总耗热量的比重最大,其次为外墙与外窗。其次,总结了针对寒冷地区既有工业建筑各围护结构节能改造常用的技术措施,主要包括外墙、外窗和屋顶的节能改造技术。对比分析了辐射采暖与对流采暖两种不同的采暖方式对建筑能耗的影响,对工业建筑适宜的采暖方式进行了简单的探讨。最后,借助DeST-c建筑能耗模拟软件,对西安地区某一典型既有采暖工业建筑的建筑能耗进行模拟。模拟分析该建筑分别采用不同墙体保温、不同屋面保温及不同热工性能的节能窗对建筑能耗的影响以及节能效果。因工业建筑尚没有专项的节能设计标准,在分析过程中参照《公共建筑节能设计标准》的相关参数。通过分析得出该建筑要满足《公共建筑节能设计标准》中关于外墙、屋面及外窗传热系数规定中的极限值时,外墙和屋面采用不同保温材料时所对应的最经济厚度以及外窗的最优选择。综合考虑外墙、屋面和外窗对建筑能耗的影响,在满足节能65%标准的前提下,最终得出适合该工业建筑节能改造的最优组合方案。
[Abstract]:With the development of Chinese economy and the improvement of people's living standard, the construction industry has developed rapidly and the energy consumption of building has been increasing, which has become one of the important factors restricting the economic development of our country. In the existing buildings, the energy consumption per unit area of industrial buildings is much higher than that of residential buildings, and the energy consumption of industrial buildings accounts for a large proportion of the total building energy consumption. In cold regions, building energy consumption is dominated by heating energy consumption, while a large part of building energy consumption in cold regions is lost through outer enclosure structure. The energy-saving design of building envelope structure in cold area is related to the energy saving benefit of the whole building. Therefore, it is of great significance to study the energy saving measures of existing heating industrial buildings in cold areas. Firstly, this paper summarizes the development history of industrial buildings in cold areas and the present situation and existing problems of enclosure structure through literature reading, field investigation and other methods. By testing a typical existing heating industrial building in Xi'an and analyzing the present situation of its enclosure structure, it is concluded that the thermal insulation performance of the envelope structure of the industrial building is poor, and the building energy consumption is very large. The proportion of heat consumption in the total building energy consumption of each enclosure structure of the industrial building is calculated. The heat consumption of the roof is the largest in the total energy consumption, followed by the exterior wall and the outer window. Secondly, the paper summarizes the common technical measures of energy saving reconstruction for the existing industrial buildings in cold area, including the energy saving reconstruction technology of exterior wall, outer window and roof. The effects of radiation heating and convection heating on building energy consumption are analyzed, and the suitable heating methods of industrial buildings are discussed briefly. Finally, with the aid of DeST-c building energy consumption simulation software, the energy consumption of a typical existing heating industrial building in Xi'an is simulated. The effects of different wall insulation, different roof insulation and different thermal properties on the energy consumption of the building were simulated and analyzed. Since there is no special energy-saving design standard for industrial buildings, the relevant parameters of the Standard for Energy-saving Design of Public buildings are referred to in the process of analysis. Through the analysis, it is concluded that the building should meet the limit value of the heat transfer coefficient of exterior wall, roof and outer window in the Standard of Energy Saving Design of Public Building, when the limit value of the heat transfer coefficient of exterior wall, roof and outer window is obtained. The economic thickness of the exterior wall and roof with different insulation materials and the optimal selection of the outer window. Considering the influence of exterior wall, roof and exterior window on building energy consumption, the optimal combination scheme suitable for energy saving reconstruction of industrial building is obtained under the premise of meeting the energy saving standard of 65%.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU27

【参考文献】