江苏省新建公共建筑节能设计技术路径分析*
摘要：
随着建筑及机电设备技术的发展,需提出符合江苏省建筑气候和节能具体情况的节能设计标准。本文基于江苏省公共建筑类型分布情况,提出了新建公共建筑节能设计技术路径。通过提升建筑外窗及透光幕墙热工性能,围护结构相对节能率为0.99%;通过优化供暖空调系统能效,供暖空调系统平均相对节能率为5.17%;通过降低照明系统功率密度,照明系统相对节能率为26.76%。根据围护结构、供暖空调系统和照明系统分项能耗占比,得到建筑本体综合相对节能率为2.95%。利用建筑屋面20%的面积设置光伏系统,公共建筑平均相对节能率为1.22%。经优化后,江苏省新建公共建筑平均综合节能率达到76.17%。
Abstract：
With the development of building and mechanical and electrical equipment technology, it is necessary to propose energy-saving design standards that meet the specific conditions of building climate and energy conservation in Jiangsu Province. Based on the distribution of public building types in Jiangsu Province, the energy-saving design technical path of new public buildings is proposed. By improving the thermal performance of building exterior windows and transparent curtain walls, the relative energy-saving rate of building envelope is 0.99%. By optimizing the energy efficiency of heating and air conditioning system, the average relative energy-saving rate of heating and air conditioning system is 5.17%. By reducing the power density of the lighting system, the relative energy-saving rate of the lighting system is 26.76%. According to the proportion of energy consumption of building envelope, heating and air conditioning system and lighting system, the comprehensive relative energy-saving rate of the building body is 2.95%. Using 20% area of building roof to set up a photovoltaic system, the average relative energy-saving of public buildings is 1.22%. After optimization, the average comprehensive energy-saving rate of new public buildings in Jiangsu Province reaches 76.17%.
Keywords:building energy consumption; public building; energy-saving design; energy-saving rate; renewable energy; technical path