综合管廊地道风降温及节能效果预测分析  

Prediction and Analysis of Cooling and Energy Saving Effect of Underground Tunnel Ventilation of Utility Tunnel

作　　者：高彪 GAO Biao(Beijing General Municipal Engineering Design and Research Institute Co.,Ltd.,Beijing 100082,China)

机构地区：[1]北京市市政工程设计研究总院有限公司,北京100082

出　　处：《建筑节能（中英文）》2022年第3期130-134,140,共6页Building Energy Efficiency

摘　　要：地道风系统具有系统简单、工程造价低、运维费用小、节能环保等优点,在建筑能源方案选择中得到了广泛的应用,并取得了显著的节能效果;地下综合管廊具有断面大、壁面温度低、不需新增地道风系统初投资的特点,为周边建筑物利用综合管廊提供地道风的节能措施提供了天然有利条件,应该充分利用综合管廊地道风。从建筑节能的角度出发,提出了综合管廊与地道风系统相结合的理念,利用管廊供给地道风为空调建筑降温,建立了管廊地道风的降温计算模型,探讨了地道风降温效果随管廊长度、进口空气温度、管廊埋深、风速等因素的变化规律,并对管廊地道风系统的节能效果进行了预测。结果显示综合管廊地道风的应用能够为建筑送风带来一定的温降,能够取得较为显著的节能效果。综合管廊与地道风相结合为空调建筑降温的方案是可行的。The underground tunnel ventilation system has the advantages of simple system,low cost of construction,low cost of operation and maintenance,energy saving and environmental protection,etc.It has been widely used in the selection of building energy schemes,and achieved remarkable energy saving effect.The utility tunnel has the characteristics of large section,low wall temperature and no need for the initial investment of the underground tunnel ventilation system,which provides a natural favorable condition for the surrounding buildings to use the underground tunnel ventilation as an energy saving measure.We should make full use of the renewable energy.From the perspective of building energy efficiency,this paper proposes the idea of combining the utility tunnel with the underground tunnel ventilation system,uses the underground tunnel wind to cool the air conditioning buildings,establishes the cooling calculation model of the underground tunnel ventilation of utility tunnel,discusses the variation law of the cooling effect of underground tunnel ventilation of utility tunnel with the factors such as the length of utility tunnel,inlet air temperature,buried depth of utility tunnel,wind speed and so on,and predicts the energy-saving effect of the underground tunnel ventilation of utility tunnel.The results show that the underground tunnel ventilation of utility tunnel can bring a certain temperature drop for the air supply of the building,and can achieve a relatively significant energy saving effect.It is feasible to combine the utility tunnel and the underground tunnel ventilation to cool the air conditioning building.

关 键 词：综合管廊 地道风 降温 节能 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]