In order to achieve the ultra-low energy consumption green building in a public building in Lanzhou a number of passive energy-saving technologies are applied,and the efficient hot and cold source and the photovol-taic power generation system are used.The article is based on building information model(BIM)energy-saving technology platform and transient system simulation program(TRNSYS)simulation software to calculate and ana-lyze building energy consumption and building energy conservation,the following conclusions are obtained:The com-prehensive energy consumption value of the building is 51.651 kW·h/(m2·a).When the 200 m2 solar photovoltaic power generation system in the roof,the annual average power generation can reach 64 200 kW·h/a,and the power generation index per unit building area is about 27.80 kW·h/(m2·a).The comprehensive value of building energy consumption based on renewable energy design is only 5.1 kW·h/(m2·a),and the comprehensive energy saving rate of the office building can reach 90.12%.The energy saving rate of the building itself is 35.32%,and the utiliza-tion rate of renewable energy is 85.96%,the total production volume is greater than the annual terminal energy con-sumption of the building,and the performance indicators fully meet the constrains of energy efficiency indicators.The above design and conclusion can provide a good demonstration for the near-zero energy consumption buildings in the Northwest Public Construction Project.
关键词
兰州地区/被动式超低能耗建筑/可再生能源/能耗分析
Key words
Lanzhou area/passive ultra-low energy buildings/renewable energy/energy consumption analysis
维普
万方数据