| 摘要: |
| 为保证实验动物房的室内污染物浓度处于较低水平，传统空调系统一般采用大风量的全新风系统，空调能耗巨大。针对控制污染物浓度所需新风量远高于控制其他参数所需新风量的情况，本文提出了可实现温度、湿度、污染物独立控制的新型空调系统，以达到降低新风量、减少空调能耗的目的。以笼盒式实验动物房为例，利用CFD软件模拟了该系统的净化效果并研究节能性，结果表明：当设置新风换气次数为8.53 h-1、循环换气次数为13 h-1、循环送风温度为19.4 ℃时，可满足室内温度、湿度、污染物浓度要求，保证小鼠正常生存；相比传统全新风系统，循环净化系统的新风量减少了57.4%，能耗降低了47.9%。 |
| 关键词: 实验动物房 空调系统 新风量 独立控制 循环风净化 |
| DOI： |
| 投稿时间：2021-04-18 修订日期：2021-07-11
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| 基金项目:“十三五”国家重点研发计划（2018YFC0705201）资助项目。 |
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| Energy-saving Effect of Air-conditioning System in Laboratory Animal Room with Less Fresh Air Volume and Purification of Indoor Circulating Air |
|
Wang Wentao1, Zheng Gonghang1, Li Xianting1, Shao Xiaoliang2, Wang Huan1
|
| (1.School of Architecture, Tsinghua University;2.School of Civil and Resource Engineer, University of Science and Technology Beijing) |
| Abstract: |
| To ensure that the concentration of indoor pollutants in a laboratory animal room is maintained at a low level, all-fresh-air systems with large air volumes are typically used in traditional air-conditioning systems, which results in high energy consumption for air conditioning. The fresh air volume used to control the concentration of pollutants is considerably higher than that used to control other parameters; therefore, this study proposes an air-conditioning system that realizes independent control of temperature, humidity, and pollutants. The proposed system reduces the fresh air volume and energy consumption of a heating, ventilation, and air-conditioning system. A cage-type laboratory animal room is used as an example; the purification effect of the proposed system is simulated using CFD software, and the system’s energy-saving performance is investigated. The results show that for a fresh air change rate of 8.53 h-1, the circulating air change rate is 13 h-1, and the supply circulating air temperature is 19.4 ℃，the indoor temperature, humidity, and pollutant concentration requirements can be met to ensure the normal survival of mice. Compared with the traditional all-fresh-air system, the fresh air volume and energy consumption of the proposed system is decreased by 57.4% and 47.9%, respectively. |
| Key words: laboratory animal room HVAC system fresh air volume independent control circulating air purification |
