基于参数化分析的上海市超低能耗商业建筑空调耗冷热量研究
Parametric-based analysis on heating and cooling demands of ultra-low energy commercial buildings in Shanghai
摘要：
超低能耗建筑已在上海得到推广,现阶段住宅、办公建筑的超低能耗技术路线已较为完善,而大型超低能耗商业建筑在上海尚未有建成项目,相关的文献研究也较少。本文对影响上海市超低能耗公共建筑全年累计耗冷热量降低30%要求的主要设计参数进行了分析,通过EnergyPlus模拟计算,研究了不同建筑体形系数及各设计参数对结果的影响。结果表明,大型商业建筑超低能耗设计的关键主要在于建筑体形系数、外围护结构性能(外墙、外窗传热系数及外窗综合遮阳系数)及新风全热回收综合效率。本文的研究结果可为上海市大型商业建筑的超低能耗设计提供指导。
Abstract：
Ultra-low energy buildings have been promoted in Shanghai in recent years. At present, the ultra-low energy technical routes for residential buildings and office buildings are relatively well-established, while there are few completed ultra-low energy projects for large commercial buildings in Shanghai, and related literature research is also limited. This paper aims to study the primary design parameters that contribute to the 30% reduction in annual cumulative cooling and heating demand for ultra-low energy public buildings in Shanghai. The effects of different design parameters on the outcomes under various building shape coefficients are studied through the EnergyPlus simulation calculation. The results indicate that the key to ultra-low energy design for large commercial buildings mainly lies in the building shape coefficient, the external envelope thermal performance (the heat transfer coefficient of exterior walls and external windows, and the comprehensive shading coefficient of external windows), and the overall heat recovery efficiency of outdoor air. The research findings presented in this paper can provide fundamental guidelines for designing ultra-low energy large commercial buildings in Shanghai.
Keywords:ultra-low energy building; large commercial building; energy-saving design; shape coefficient; annual cumulative cooling and heating demand; envelope thermal performance; outdoor air heat recovery