住宅楼宇能源效益设计及建造指引

该研究着重于优化新建住宅楼宇的外围护结构及住宅单位的室内布局设计,从而提出建造规范的指引,以减少用于空调和照明的能源消耗。同时对包括香港、中国内地、台湾、新加坡、澳洲、新西兰、英国和美国在内的相关国家与地区的现行住宅节能设计标准进行了分析。基于定量评估的研究,发现建筑物的外墙传热系数和自然通风比率是提高住宅建筑能源效率的两大核心环节。

Enhancing energy performance of residential buildings has become an important part of the Hong Kong Government＇s overall strategy of achieving a more environmentally-friendly and sustainable built environment. The study identified two key potential measures which would improve the energy efficiency of residential buildings in Hong Kong： control on facade heat gain and provisions for natural ventilation. Having a comprehensive review of local and overseas legislation and best practices in places like China's Mainland, Taiwan, Singapore, Australia, New Zealand, the United Kingdom and the United States, the research team conducted extensive qualitative and quantitative analyses of major building design and construction parameters applicable to local environmental context. These included building orientation, external solar shading, shading coefficient of glazing, window-to-wall ratio, U-value, thermal mass, absorptivity of surface materials of building envelopes, size of openable versus fixed windows, window height, room depth- to-height ratio, building layout and other parameters. The study has filled the existing research gap and paved the way towards constructing more energy-efficient residential buildings in a high density urban environment.