苏南地区节能外墙保温系统评价研究

发布时间：2018-07-20 21:19

【摘要】：面对人均可采能源储量不丰,建筑用能巨大,大气污染严重的严峻形势下,建筑节能的迫切性是毋庸置疑的。本文首先通过文献阅读对于国内外建筑节能的发展情况进行了比较与分析,得到以下三点发现:一是对于建筑节能领域的研究主要集中在节能保温材料的开发与建筑节能技术的研究;二是外墙外保温系统是目前建筑围护结构主要采用的模式,是影响建筑节能效果的重要因素;三是对于目前现行的各类建筑节能系统,尤其是外墙外保温系统的保温隔热效果的综合评价的研究是很少的。因此,希望可以通过本文的研究与分析建立一套节能外墙外保温系统的评价体系,为之后的外墙外保温系统类型、材料的选择提供一个优选的机制,达到既能节约成本又能最大程度节能保温的效果。本文研究的范围为行政区划的苏南地区,包括南京、镇江、苏州、无锡、常州五市。该地区是典型的长江流域气候,属于夏热冬冷地区。该地区建筑节能有两大要求:一,改善夏季高温时建筑热环境;二,提高冬季低温时隔热保温效率。根据《建筑节能工程施工质量验收规范》(GB50411-2007)在苏南地区,节能分部工程验收前都对围护结构进行现场热工性能检测,根据实测所得传热系数值来判定外墙节能工程质量和节能效果做出评判,因此,本文在热工性能检测报告的基础上建立评价体系。通过参与由江苏省建筑节能技术中心、江苏省住建厅科技发展中心、江苏省建设工程质量监督总站对我省主要外墙外保温系统(材料)及主要外墙外保温工程质量的调查活动,通过适宜性分析确定了苏南地区的五类主要外墙外保温系统。根据调查问卷的结果,基于SPSS软件进行指标筛选出技术指标、经济指标、施工指标、环境指标4个一级指标和16个二级指标。针对这五大类外墙外保温系统的50组热工性能检测报告进行数据归一化处理,利用支持向量机理论建立评价模型,使用Matlab2013编写程序运行实例验证评价模型的可行性和可靠性。本文最终完成了一套针对苏南地区五大类主要外墙外保温系统的评价体系,得到了高精度的建筑节能效果评价模型。虽然该评价体系具有一定的局限性,但是希望能过为日后建筑节能设计、选材、施工等方面提供技术参考,为贯彻国家可持续发展战略贡献一份绵薄之力。
[Abstract]:Faced with the severe situation that the per capita recoverable energy reserves are not abundant, the building energy consumption is huge, and the air pollution is serious, the urgency of building energy saving is beyond doubt. First of all, this paper compares and analyzes the development of building energy conservation at home and abroad through literature reading. The main findings are as follows: first, the research in the field of building energy conservation is mainly focused on the development of energy-saving and thermal insulation materials and the research of building energy conservation technology; second, the external insulation system of external wall is the main mode used in building envelope structure at present. It is an important factor that affects the effect of building energy conservation. Thirdly, there is little research on the comprehensive evaluation of the thermal insulation effect of all kinds of building energy saving systems, especially the external wall insulation system. Therefore, it is hoped that through the research and analysis of this paper, a set of evaluation system of energy saving external wall thermal insulation system can be established, which can provide an optimal selection mechanism for the type of external wall thermal insulation system and the selection of materials. It can not only save cost but also save energy and heat preservation to the greatest extent. The scope of this study is the administrative division of southern Jiangsu, including Nanjing, Zhenjiang, Suzhou, Wuxi, Changzhou five cities. This area is a typical Yangtze River basin climate, belong to hot summer and cold winter area. There are two requirements for building energy conservation in this area: one is to improve the thermal environment of buildings during high temperature in summer, the other is to improve the efficiency of heat insulation in winter. According to the Code for acceptance of Construction quality of Building Energy-saving Engineering (GB50411-2007) in southern Jiangsu, the thermal performance of envelop structure is tested before acceptance of energy saving partial project. According to the measured heat transfer coefficient value to judge the external wall energy saving engineering quality and the energy saving effect to make the judgment, therefore, this article establishes the appraisal system based on the thermal performance inspection report. By participating in the investigation activities of the Jiangsu Provincial Building Energy Saving Technology Center, the Jiangsu Provincial living and Construction Office Science and Technology Development Center, the Jiangsu Provincial Construction Project quality Supervision General Station, the main external wall thermal insulation system (materials) and the main external wall external insulation project quality of our province, Through suitability analysis, five kinds of main exterior wall external insulation systems in southern Jiangsu are determined. According to the results of the questionnaire, the technical index, economic index, construction index, environmental index, four first class index and 16 second grade index were selected based on SPSS software. In view of the 50 groups of thermal performance test reports of these five types of exterior wall thermal insulation systems, the data are normalized, the evaluation model is established by using support vector machine theory, and the feasibility and reliability of the evaluation model are verified by a program running example written in Matlab 2013. In this paper, a set of evaluation system for five main types of exterior wall thermal insulation system in southern Jiangsu is completed, and a high-precision evaluation model of building energy saving effect is obtained. Although the evaluation system has some limitations, it is hoped that it can provide technical reference for building energy-saving design, material selection and construction in the future, and contribute a modest contribution to the implementation of the national sustainable development strategy.
【学位授予单位】：苏州科技学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU761.12

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