现行节能标准下居住建筑节能相关问题的研究
发布时间：2018-10-21 15:09
【摘要】：《武汉城市圈低能耗居住建筑设计标准》实施以来，湖北省居住建筑的室内热环境及建筑能耗有了明显的改善。随着社会的发展，国家对建筑节能的要求不断提高，2013年我省颁布了新的节能标准《低能耗居住建筑节能设计标准》，该标准提出了我省居住建筑节能65%的目标，其中围护结构承担的节能率为32.5%。 论文选取我省武汉市居住建筑为研究对象，首先利用能耗模拟软件DeST-h对影响居住建筑能耗因素进行了理论分析。分析结果表明：湖北省既有居住建筑外墙保温材料（EPS板）的最大厚度不能超过60mm，当EPS板的厚度大于60mm时，居住建筑节能率不再随传热系数的变化而变化，而且还会增加初投资费用（EPS板费用）；围护结构的保温效果对建筑的空调能耗影响较小，对采暖能耗影响较大；南向外墙最佳窗墙比为0.3，北向外墙最佳窗墙比为0.2；当建筑物的体形系数S小于0.4时，S每增加0.01，居住建筑的全年空调、采暖能耗增加率分别为0.6%-2.08%、0.72%-2.11%。 同时，在武汉市建立两个对比实验室，于2014年分别进行冬夏季对比性实验。实验结果表明：在冬季，，节能实验室在空调设定参数为18℃时的平均节能率为26.46%；在夏季，节能实验室在空调设定参数为26℃时的平均节能率为7.3%。 对比两实验室的室内温度及围护结构内外壁面温度，得出外墙内保温系统和中空玻璃对提高室内热舒适性、降低建筑能耗和提高采暖空调设备的效率效果显著。 利用DeST-h软件分别模拟出两实验室的冬夏季模拟能耗，计算出模拟节能率，对比模拟节能率与实验节能率，结果表明冬（夏）季二者的平均差异率为11.73%（10.33%），从而验证了能耗模拟软件DeST-h对冬夏季模拟计算的正确性与可靠性。
[Abstract]:Since the implementation of the "Design Standard for low Energy consumption Residential buildings in Wuhan City Circle", the indoor thermal environment and building energy consumption of residential buildings in Hubei Province have been obviously improved. With the development of society, the requirements of building energy conservation are raised. In 2013, a new energy saving standard, Energy Saving Design Standard for low Energy consumption Residential buildings, was promulgated in our province, which puts forward the goal of saving energy by 65% in residential buildings in our province. The energy saving rate of the envelope structure is 32.5%. This paper selects the residential buildings in Wuhan as the research object. Firstly, the factors affecting the energy consumption of residential buildings are analyzed theoretically by using the energy consumption simulation software DeST-h. The results show that the maximum thickness of thermal insulation material (EPS) for existing residential buildings in Hubei Province cannot exceed 60 mm. When the thickness of EPS plate is greater than that of 60mm, the energy saving rate of residential buildings will no longer change with the change of heat transfer coefficient. It also increases the initial investment cost (EPS board cost), the insulation effect of the envelope structure has little effect on the air conditioning energy consumption of the building, and has a great influence on the heating energy consumption, the best window wall ratio of the south wall is 0.3, the best window wall ratio of the north wall is 0.2; When the building shape coefficient S is less than 0.4, the heating energy consumption increase rate is 0.6-2.080.72% -2.11 for each increase of S 0.01. At the same time, two contrast laboratories were set up in Wuhan, and the comparative experiments in winter and summer were carried out in 2014. The results show that in winter, the average energy saving rate of energy-saving laboratory is 26.46 when the air conditioning parameter is 18 鈩
本文编号：2285476
[Abstract]:Since the implementation of the "Design Standard for low Energy consumption Residential buildings in Wuhan City Circle", the indoor thermal environment and building energy consumption of residential buildings in Hubei Province have been obviously improved. With the development of society, the requirements of building energy conservation are raised. In 2013, a new energy saving standard, Energy Saving Design Standard for low Energy consumption Residential buildings, was promulgated in our province, which puts forward the goal of saving energy by 65% in residential buildings in our province. The energy saving rate of the envelope structure is 32.5%. This paper selects the residential buildings in Wuhan as the research object. Firstly, the factors affecting the energy consumption of residential buildings are analyzed theoretically by using the energy consumption simulation software DeST-h. The results show that the maximum thickness of thermal insulation material (EPS) for existing residential buildings in Hubei Province cannot exceed 60 mm. When the thickness of EPS plate is greater than that of 60mm, the energy saving rate of residential buildings will no longer change with the change of heat transfer coefficient. It also increases the initial investment cost (EPS board cost), the insulation effect of the envelope structure has little effect on the air conditioning energy consumption of the building, and has a great influence on the heating energy consumption, the best window wall ratio of the south wall is 0.3, the best window wall ratio of the north wall is 0.2; When the building shape coefficient S is less than 0.4, the heating energy consumption increase rate is 0.6-2.080.72% -2.11 for each increase of S 0.01. At the same time, two contrast laboratories were set up in Wuhan, and the comparative experiments in winter and summer were carried out in 2014. The results show that in winter, the average energy saving rate of energy-saving laboratory is 26.46 when the air conditioning parameter is 18 鈩
本文编号：2285476
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