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为提高既有建筑物保温隔热能力和节能效果,以郑州市区既有建筑物为例构建计算模型,通过计算发现该类建筑物平屋顶围护结构传热系数热工指标及节能效果远低于国标相关规定。针对室内热环境差、建筑运行能耗高等问题,提出了平屋顶围护结构增设保温隔热层、“平”改“坡”和采用装饰保温材料做吊顶等节能改造措施,并进行热工节能可行性技术分析,取得了较好效果,可供借鉴。
In order to improve the thermal insulation ability and energy-saving effect of the existing buildings, taking the existing buildings in Zhengzhou as an example, a calculation model is constructed, and the thermal indexes and energy-saving effects of the heat transfer coefficient of the flat roof building structure are found by calculation Lower than the relevant provisions of the national standard. In view of the poor indoor thermal environment and the high energy consumption of building operation, the paper puts forward the energy-saving measures such as adding insulation layer, flat roof and ceiling with decorative insulation material Technical feasibility analysis of thermal energy saving, achieved good results, for reference.