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中文摘要：
为揭示地道送风生态降温在公共建筑中利用的可行性,本文以甘肃某游客接待大厅为例,分析了地道埋深及长度对送风温度的影响,在综合考虑施工成本和风机运行能耗条件下,确定相关技术参数。采用CFD数值方法对大厅置换通风情况下室内热环境进行了模拟分析,计算了在综合生态降温技术条件下,接待大厅高度方向和人员活动范围内的温度分布。研究结果表明,利用置换通风较高能量利用效率的特点,地道通风设计条件可以满足在室人员对热舒适的要求。
英文摘要：
The purpose of the paper is to reveal the feasibility of the eco-cooling technology by tunnel ventilation in public buildings. Taking a tourist reception hall in Gansu Province as an example, the influence of depth and the length on the supply air temperature was analyzed. The parameters were determined, taking into account construction cost and energy consumption of fun. The thermal environment under displacement ventilation was analyzed with numerical simulation of Computational Fluid Dynamics （CFD）. And vertical and horizontal temperature distributions of the hall were given under the condition that integrated eco-cooling technique was adopted in the building. The simulation results showed that thermal comfort for the staff in the working space of the hall could be satisfied. It indicated high energy efficiency owing to the displacement ventilation system.
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