Indoor pollutant diffusion control and simulation in building
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摘要: 對建筑室內香料污染物擴散的控制方法進行了研究.分析了香料污染物產生的根源和擴散特性,制定了分區控制、先收集后處理的控制策略.設計了排氣柜排風系統,基于數值模擬優化了排風系統參數,確定了最優風道流速5.6~6.0m·s-1.實測結果表明,采用分區控制污染源,利用排氣柜收集污染物是控制香料污染物擴散的有效方式,香料污染物收集率達90%以上.Abstract: The method to control diffusion of indoor perfume pollutants in building was studied.Production source and diffusion characteristic of perfume pollutants were discussed.The control plan was proposed that pollution sources were isolated separately and then pollutants were collected.The exhaust system was designed.The optimal flow velocity in pipeline was obtained to be 5.6-6.0 m·s-1 based on numerical simulation.Test results proved that more than 90% of perfume pollutants were trapped and the method was an effective way to control the diffusion of perfume pollutants.
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Key words:
- computational fluid dynamics(CFD) /
- indoor pollutant /
- exhaust system /
- pollution control
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