夏热冬暖地区高校校园建筑节能改造措施研究

发布时间：2018-07-31 06:18

【摘要】：近年来高校校园能耗水平升高，校园能耗主要来源于校园内大量存在的对节能设计考虑不足的既有建筑，对校园既有建筑进行节能改造，降低建筑能耗，是解决高校校园能耗问题的关键。本文将夏热冬暖地区高校既有建筑与建筑节能技术结合，研究分析当前夏热冬暖地区高校既有建筑能耗特征及适宜的节能改造技术。以广州大学为例，分析夏热冬暖地区高校既有建筑的用能水平、能耗变化规律及建筑能耗强度，确定教学建筑、学生宿舍及图书馆的能耗占校园能耗比重较大且能耗强度较高，是校园建筑节能改造的重点。以广州大学教学建筑作为研究对象，采用数值模拟方法，研究建筑围护结构热工性能对教学建筑能耗的影响。通过15个节能改造方案对比分析发现，外窗遮阳系数对夏热冬暖地区建筑夏季能耗影响最大，节能率为53.17%，外窗和屋面的传热系数次之，节能率分别为50.15%、50.06%，外墙传热系数节能率为49.65%，对夏热冬暖地区建筑节能不利；同时改善外窗遮阳系数以及屋面传热系数的改造方案节能率为53.28%，节能效果最好。, 分析广州大学南向及西南向外窗遮阳构件遮阳效果，提出外遮阳构件的改进建议；通过实地调研及问卷调查的形式，对校园供冷期内房间舒适性以及校园能源浪费现象进行调查，，对空调系统与自然通风的结合形式、房间自然通风效果的改善以及行为节能工作的开展给出了建议。
[Abstract]:In recent years, the level of energy consumption in colleges and universities has increased. The energy consumption on campus mainly comes from the existing buildings with insufficient consideration for energy-saving design in campus. The existing buildings on campus are reformed to reduce the building energy consumption. It is the key to solve the problem of energy consumption on campus. In this paper, the energy consumption characteristics of existing buildings in hot summer and warm winter areas and the appropriate energy saving retrofit technology are studied and analyzed by combining the existing buildings in hot summer and warm winter with the energy saving technology of buildings. Taking Guangzhou University as an example, this paper analyzes the energy use level, energy consumption change law and building energy intensity of existing buildings in hot summer and warm winter area, and determines the teaching building, the energy consumption of student dormitory and library occupies a large proportion of the campus energy consumption and the energy consumption intensity is high. Is the campus building energy-saving transformation of the focus. Taking the teaching building of Guangzhou University as the research object, the influence of the thermal performance of the building enclosure structure on the energy consumption of the teaching building was studied by numerical simulation method. Through the comparative analysis of 15 energy saving renovation schemes, it is found that the sunshade coefficient of outer window has the greatest influence on building energy consumption in summer and summer in hot summer and warm winter area, and the energy saving rate is 53.17, and the heat transfer coefficient of outer window and roof is the second. The energy saving rates are 50.15 and 50.06, respectively, and the energy saving rate of external wall heat transfer coefficient is 49.65, which is unfavorable to building energy saving in hot summer and warm winter area. At the same time, the energy saving rate is 53.28 and the energy saving efficiency is the best for improving the shading coefficient of the outer window and the heat transfer coefficient of the roof. The paper analyzes the sunshade effect of the south and southwest windows of Guangzhou University, and puts forward some suggestions for the improvement of the external sunshade component. Through the form of field investigation and questionnaire survey, this paper investigates the comfort of the room and the waste of energy in the campus during the cooling period, and the combination of air conditioning system and natural ventilation. The improvement of room natural ventilation effect and the development of behavior energy saving work are suggested.
【学位授予单位】：广州大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU111.48

【参考文献】