陕南地区城镇采暖住宅的节能设计研究

发布时间：2018-03-20 15:50

  本文选题：陕南地区　切入点：城镇　出处：《西安建筑科技大学》2017年博士论文　论文类型：学位论文

【摘要】：陕南跨越夏热冬冷地区和寒冷地区两个气候区。夏热冬冷地区属于国家规定的非采暖区。但调研得知,随着人们对室内热环境要求的提高,汉中市、安康市近年来越来越多的住宅开始冬季采暖,建筑能耗也随之大幅度增加。因此,如何改善汉中市、安康市城镇住宅建筑的冬季室内热环境状况,又能降低建筑能耗是急需研究的课题。陕南地区中的商洛市属于寒冷地区,但从地域性资源条件分析,该地区和以西安市为代表的关中寒冷地区有较大的区别,而与同处于陕南地区的汉中市、安康市更为相似,但目前对陕西省以及西北地区建筑节能的研究以西安市为代表的寒冷地区研究较多,对商洛市的研究很少。因此,本研究按行政区划对陕南地区的汉中市、安康市、商洛市的城镇采暖住宅进行节能设计研究。本研究对汉中市、安康市、商洛市的城镇住宅的建筑现状、采暖现状、围护结构的构造及热工性能现状、冬季室内外热环境现状进行了大量实地调研与测试。在调研、测试、分析的基础上,总结出该地区城镇采暖住宅存在的节能问题。针对该地区城镇采暖住宅建筑节能的实际状况以及存在的节能问题,着重从城镇采暖住宅的规划节能设计、围护结构的节能设计、采暖节能设计等方面进行地域针对性的住宅建筑节能设计研究。主要研究成果如下:(1)通过传热系数、热惰性指标的计算,结合陕南地区汉中市、安康市页岩空心砖和加气混凝土砌块的规格尺寸,得出了满足陕西省《居住建筑节能设计标准》的外墙使用自保温材料的墙体的热工性能及适当厚度。模拟研究表明在汉中市、安康市同厚度的页岩空心砖自保温墙体的节能效果优于加气混凝土砌块自保温墙体。该研究同时也表明,自保温墙体在夏热冬冷地区具有技术适宜性。(2)对比汉中市、安康市外墙内、外保温的研究结果表明:外墙外保温的节能效果优于外墙内保温,在外墙保温中应优先选择外保温;模拟研究还表明汉中市、安康市虽然采用间歇式、分空间采暖,但住宅建筑的内墙不适合设保温层,内墙增设保温层后,反而会增加建筑的总能耗,不利于节能。(3)通过对陕南地区各种采暖方式的综合比较以及对水源热泵系统示范项目的节能技术分析研究表明:陕南地区冬季用水源热泵地板辐射采暖具有很强的技术经济性。本研究还运用建筑环境设计模拟分析软件对陕南地区汉中市、安康市的城镇采暖住宅在选用不同的外墙保温材料及不同厚度时的建筑能耗进行了模拟计算,得出了陕南地区汉中市、安康市的八种外墙保温材料的保温隔热性能及每种保温材料的适宜厚度。研究成果对陕南地区城镇采暖住宅的节能设计提供理论依据及实践指导作用,也为设计人员在其他类似气候区进行住宅节能设计提供借鉴和参考。
[Abstract]:Southern Shaanxi spans the hot summer and cold winter regions and the cold regions. The hot summer and cold winter areas belong to the non-heating areas prescribed by the state. However, the investigation shows that with the improvement of people's requirements for the indoor thermal environment, Hanzhong City, In recent years, more and more residential buildings in Ankang City have started heating in winter, and the building energy consumption has also increased by a large margin. Therefore, how to improve the indoor thermal environment of residential buildings in Hanzhong and Ankang cities in winter, It is urgent to study the problem of reducing building energy consumption. Shangluo city in southern Shaanxi belongs to cold area, but from the analysis of regional resource conditions, it is quite different from Guanzhong cold area represented by Xi'an. Compared with Hanzhong city in southern Shaanxi, Ankang city is more similar to Hanzhong city, but there are more researches on building energy conservation in Shaanxi province and northwest region than in Shangluo city, which are represented by Xi'an city. According to the administrative division, this paper studies the energy saving design of urban heating houses in Hanzhong, Ankang and Shangluo in southern Shaanxi. This research is about the present architectural situation and heating status of urban houses in Hanzhong, Ankang and Shangluo. On the basis of investigation, test and analysis, a large number of field investigations and tests have been carried out on the construction and thermal performance of the enclosure structure and the present situation of indoor and outdoor thermal environment in winter. This paper summarizes the problems of energy saving in urban heating houses in this area. In view of the actual situation of energy-saving of urban heating residential buildings in this area and the existing problems of energy saving, this paper focuses on the energy saving design of urban heating houses and the energy saving design of enclosure structures. The main research results are as follows: (1) through the calculation of heat transfer coefficient and thermal inertia index, combined with Hanzhong City in South Shaanxi region, The specification and size of shale hollow brick and aerated concrete block in Ankang City are obtained. The thermal performance and appropriate thickness of wall with self-insulating material used in exterior wall of Shaanxi Province are obtained. The simulation study shows that in Hanzhong City, The energy saving effect of shale hollow brick self-insulating wall with the same thickness in Ankang City is better than that of aerated concrete block self-insulating wall. The study also shows that the self-insulating wall has technical suitability in hot summer and cold winter area compared with Hanzhong City. The results show that the energy saving effect of exterior wall thermal insulation is better than that of external wall insulation, and the external insulation should be selected first in the exterior wall insulation. The simulation study also shows that Hanzhong City, Ankang City, although using intermittent type, Space heating, but the inner wall of residential buildings is not suitable for the installation of insulation, the inner wall will increase the total energy consumption of the building after the addition of insulation layer. Through the comprehensive comparison of various heating modes in southern Shaanxi and the analysis of energy-saving technology for demonstration project of water source heat pump system, it is shown that the radiant floor heating of water source heat pump in southern Shaanxi in winter is very strong. This study also uses the architectural environment design simulation analysis software to the Hanzhong city in the south of Shaanxi province, The building energy consumption of urban heating houses in Ankang City is simulated and calculated when different exterior wall insulation materials and thickness are selected, and the Hanzhong City in South Shaanxi region is obtained. The thermal insulation properties of eight kinds of exterior wall insulation materials and the suitable thickness of each kind of insulation materials in Ankang City. The research results provide theoretical basis and practical guidance for the energy saving design of urban heating houses in southern Shaanxi. Also for designers in other similar climate areas for residential energy-saving design to provide reference and reference.
【学位授予单位】：西安建筑科技大学
【学位级别】：博士
【学位授予年份】：2017
【分类号】：TU241.91
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本文编号：1639761