绿色建筑节能技术在典型公共建筑运行中碳减排潜力评估
Assessing carbon emission reduction potential of green building energy saving technologies in operation of typical public buildings
摘要：
绿色建筑技术对减少建筑领域碳排放起着至关重要的作用。本文关注公共建筑运行阶段，对几种主要的绿色建筑技术的碳减排潜力进行评估。利用EnergyPlus软件，针对上海和哈尔滨2个城市，对办公建筑和酒店建立典型模型，通过能耗模拟得到多种技术情景下的能耗强度。碳排放因子依据我国能源结构计算得到。结果表明，自然采光和自然通风等被动式技术可以显著减少碳排放，其次是建筑围护结构性能和暖通空调设备能效的提升。按照三星级绿色建筑的技术要求，完全应用7种三星级绿色建筑节能技术的综合情景下，酒店运行阶段的减排率可达近25%，办公建筑运行阶段的减排率可达近19%。
Abstract：
Green building technologies play an important role in carbon emission reduction in the building sector. This paper focuses on the energy conservation in the public building operational phase to assess the carbon emission reduction potential of several major green building technologies. Energy use intensity is simulated using EnergyPlus with prototypical models of various green building scenarios for office buildings and hotels in Shanghai and Harbin. The carbon emission factor is calculated according to the energy structure in the building sector in China. The results show that passive technologies such as daylighting and natural ventilation can bring significant reductions in carbon emissions, followed by retrofitting of building envelopes and energy efficiency improvement of HVAC equipment. According to the technical requirements of three-star green buildings, under the comprehensive scenario of fully applying seven three-star green building energy saving technologies, the total operational carbon emission reduction rate can reach nearly 25% for hotels and 19% for office buildings.
Keywords:greenbuilding;energysavingtechnology;carbonemissionreduction;EnergyPlus;publicbuilding;carbonemissionfactor;naturalventilation;daylighting