对比我国北方地区不同时期的居住建筑节能标准与发达国家相关标准,发现我国建筑节能设计标准尚有待提高.以某多层住宅为例,按照我国建筑节能率的计算方法,计算出芬兰2008年与2010年节能设计标准可以达到的节能率水平；并对实现不同节能率的建筑围护结构保温方案进行了分析,找出我国北方地区居住建筑节能设计标准再提高的瓶颈问题,包括高性能围护结构保温产品匮乏、现有产品的成本过高以及新风耗热量比例过大.建议在引进和吸收国外先进产品与技术的同时,加强国内产品和施工工艺的研发,采用有组织通风换气的热回收,以及加大可再生能源在建筑供能系统中的应用比例等应对策略.探讨了我国建筑节能标准再提高的技术路线.%Finds that the current national design standard for energy efficiency of residential buildings in northern China should be improved by comparing the standards in different periods for northern China with those of developed countries. Taking a multi-storey residential building as an example, calculates the energy-saving rates that can be achieved based on the Finnish building design standards in 2008 and 2010 according to the calculating method of Chinese building energy-saving rate. Analyses building thermal insulation schemes to realize different energy-saving rates. Puts forward the bottleneck problems hindering improvement of the building design standard for energy-saving in northern China, such as lack of high performance insulation materials, much higher cost of current insulation products and relatively large proportion of energy consumption for heating outdoor air. Suggests strengthening the research and development of domestic products and construction techniques, adopting heat recovery techniques in organized ventilation system and increasing the proportion of renewable energy utilization in the building energy supply systems, while importing and comprehending the advanced products and technologies. Discusses possible technical routes for improving the national design standards for building energy efficiency.
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