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对获得建筑能效标识的近400个项目数据进行了统计分析,包括能效标识等级、气候区域、建筑能效理论值能耗强度与节能率分布等。结果表明,公共建筑和居住建筑以一星级为主;受政策和技术因素影响,夏热冬冷地区建筑能效标识项目较多,但是高星级项目数量较少;居住建筑能耗强度随节能率升高而减少,高星级公共建筑的能耗强度随节能率升高呈增加趋势。研究了可再生能源利用技术和节能技术的特点和应用情况,其中公共建筑单位面积能耗强度均值为86.8 k W·h/(m~2·a),主要应用了热泵技术和自然通风采光及楼宇自控技术;居住建筑单位面积能耗强度均值为33.5 k W·h/(m~2·a),主要应用了太阳能光热和自然通风采光技术。
Nearly 400 project data for building energy efficiency labeling were statistically analyzed, including energy efficiency identification level, climate zone, energy consumption intensity of the theoretical value of building energy efficiency and energy saving rate distribution. The results show that public buildings and residential buildings are dominated by one star. Due to the policy and technical factors, there are more energy efficiency labeling projects in summer and cold winter, but the number of high-star projects is less. The intensity of energy consumption in residential buildings decreases with energy-saving The rate of increase and decrease, the energy intensity of high-star public buildings increased with the increase of energy-saving rate. The characteristics and application of renewable energy utilization and energy saving technologies are studied. The average energy intensity per unit area of public buildings is 86.8 kW · h / (m ~ 2 · a). The main application of heat pump technology and natural ventilation lighting and Building self-control technology; the average energy intensity per unit area of residential buildings is 33.5 kW · h / (m ~ 2 · a), the main application of solar thermal and natural ventilation lighting technology.