| 新回风比例对室内生物污染分布影响的数值分析 |
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| 引用本文： | 李先庭,孟彬彬,赵彬.新回风比例对室内生物污染分布影响的数值分析[J].暖通空调,2003(3). |
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| 作者姓名： | 李先庭 孟彬彬 赵彬 |
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| 作者单位： | 清华大学
(李先庭，孟彬彬)，清华大学(赵彬) |
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| 摘 要： | 采用数值计算方法 ,对带有回风的空调系统中类似SARS病毒颗粒的生物颗粒浓度的分布规律进行了模拟分析。提出了一种计算带有回风的空调系统中污染物浓度的方法 ,基于这种方法 ,比较了不同新风比下的室内生物颗粒浓度和安全距离。结果表明 ,新风比对整个空间的生物颗粒污染物的分布有重要影响。但是 ,全新风时和回风较少时并不存在质的差异 ,两种情况下的污染物平均浓度和安全距离都差别不大。
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| 关 键 词： | 通风 新风比 SARS 数值模拟 |
Numerical investigation on the effect of fresh air ratio on concentration distribution of indoor biological contaminant |
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| Abstract: | Numerically studies the concentration distribution of biological particle similar as SARS virus particle in HVAC system with return air. Proposes a method to calculate the concentration distribution of contamination in the system with the return air. Based on the method, compares the concentration of biological particle and safe distance under different fresh air ratio . It is shown that the fresh air ratio plays an important role in the system with return air. However, there is no great difference between the total fresh air and less return air. The differences of average concentration of particles and the safe distance between the two states are both small. |
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| Keywords: | ventilation fresh air ratio SARS numerical simulation |
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